A fixed-position device and direct-buried bolt group construction method

Abstract

The application discloses a fixed-position adding device and a direct-buried bolt group construction method, wherein the fixed-position adding device comprises a first bolt support and a positioning control shaft net; the first bolt support is provided with four first vertical columns; a first positioning plate with first bolt holes matched with the number and arrangement positions of direct-buried bolts of the direct-buried bolt group to be fixed is arranged between the upper ends of the first vertical columns; a first leveling nut is arranged at the position corresponding to each first bolt hole on the first positioning plate; a plurality of first horizontal fine adjustment bolts are arranged on the outer side of the first leveling nut along the circumference thereof; a first embedded part is arranged at the lower end of the first vertical column; the positioning control shaft net assembly comprises four positioning control piles arranged at the two ends of the horizontal transverse and horizontal longitudinal positioning control piles respectively at the center position of the direct-buried bolt group of the equipment foundation and two steel wire lines connected to the positioning control piles and forming a cross-shaped intersection shaft net. The application can effectively position and reinforce the direct-buried bolt group, and the installation precision is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building, in particular to a fixed position device and a direct-buried bolt group construction method. BACKGROUND

[0002] The equipment foundation refers to the foundation cast in place or built for installing various equipment, and the large industrial foundation is mostly the cast-in-place concrete foundation. In order to meet the installation and use of mechanical equipment, the equipment foundation often needs to bury a large number of anchor bolts. As for the installation method of the anchor bolts, the construction industry is generally divided into two types: the first type is to use bolt reserved holes during the construction of the equipment foundation, and then install the bolts in the reserved holes after the completion of the concrete pouring, and fill with high-grade grouting material or fine stone concrete; the second type is to directly bury the bolts in the foundation concrete during pouring, and to form once, which is simple in process and avoids secondary grouting.

[0003] At present, for the equipment foundation with high precision requirements, the pre-buried precision of the direct-buried bolt is also relatively high when the second installation method is used. For example, the aluminum foil rolling mill, which is a hot industrial equipment in recent years, has multiple top plate elevations of the equipment foundation, complex structure and modeling, and extremely high construction forming quality requirements, and the rolling mill foundation has many process embedded parts, including direct-buried bolts, reserved holes and several hundred pre-buried parts. The fixed bolt of the equipment base in the rolling mill equipment pavilion area is constructed by using the direct-buried bolt (i.e. using the second method described above), and each rolling mill includes a total of 30 direct-buried bolts of two types, which are: M80 bolts, four groups of 6 bolts each, totaling 24 bolts; M36 bolts, two groups of 3 bolts each, totaling 6 bolts. The positioning requirements of these 30 direct-buried bolts are extremely high. How to ensure the positioning precision of these bolt groups is the most important in the construction of the rolling mill foundation.

[0004] The positioning and reinforcing device in the industry for the direct-buried bolt group of the equipment foundation of the rolling mill is: using a positioning plate to position and reinforce the direct-buried bolt group, and the positioning plate or the bolt is welded with the foundation reinforcement cage, and the positioning ink line mark set on the concrete formwork by using the civil construction measurement control network is used as the measurement control reference for the anchor bolt embedding. However, the above positioning and reinforcing device cannot effectively position and reinforce and adjust the direct-buried bolt group, and the installation precision is low; and the measurement line is only dependent on the line positioning on the temporary measures such as the civil formwork, and the control point or control line is easily disturbed and deviated, the positioning error is large, and the installation precision cannot be guaranteed. SUMMARY

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the positioning and reinforcement device cannot effectively position, reinforce and adjust the direct-buried bolt group, and the measurement control line is prone to deviation, resulting in large positioning errors and low installation accuracy, thereby providing a reinforcement positioning device and a direct-buried bolt group construction method.

[0006] According to a first aspect of the present invention, a reinforcement and positioning device is provided, which is applied to a group of directly buried bolts in the equipment foundation of the arch area of ​​a rolling mill equipment. The reinforcement and positioning device comprises:

[0007] The first bolt bracket includes at least three first columns, a first positioning plate is provided between the upper ends of the first columns in the height direction, first bolt holes are provided on the first positioning plate corresponding to the number and arrangement positions of the directly buried bolts of the directly buried bolt group to be fixed, a first leveling nut is provided at the upper end of the first positioning plate corresponding to the position of each first bolt hole, the first leveling nut is used to be installed on the top thread head of the directly buried bolt to be fixed, and is used to fine-tune the elevation of the directly buried bolt to be fixed in the height direction; a plurality of first horizontal fine-tuning bolts are provided on the outer side of each first leveling nut along its circumference;

[0008] a first embedded part, provided at the lower end of each of the first columns in the height direction, the first embedded part being used to be embedded in the installation position;

[0009] The positioning control axis network assembly includes four positioning control piles respectively set at the horizontal and vertical ends of the center position of the direct-buried bolt group of the equipment foundation. Steel wires are set between the two positioning control piles at the horizontal and vertical ends and between the two positioning control piles at the horizontal and vertical ends.

[0010] The fixed-position adding device has at least the following technical effects: 1. By arranging the first bolt holes on the first positioning plate according to the number and arrangement position of the embedded bolts corresponding to the embedded bolt group to be added with fixed positions, each embedded bolt corresponding to the embedded bolt group can be pre-assembled in the corresponding first bolt hole before construction, thereby pre-assembling the embedded bolt group corresponding to the first bolt support, and then welding and fixing the first bolt support pre-assembled with the embedded bolt group corresponding to the first embedded part pre-buried at the construction position, thereby realizing the positioning and reinforcement of the embedded bolt group. The fixed-position adding device uses a separate fixed-position adding system to reinforce the embedded bolt group, and is not welded with the foundation reinforcement, which can effectively avoid the deviation of the embedded bolt group caused by various reasons such as concrete pouring and vibrating, hardening shrinkage, steel binding and welding stress shrinkage during construction, improve the installation accuracy of the embedded bolt group, and meet the high accuracy requirements of the equipment foundation in the mill equipment canopy area. 2. The fixed-position adding device uses a standardized first bolt support to position and reinforce the corresponding embedded bolt group. Compared with the scattered components such as steel bars and channel steels used in the prior art, no standardized products are used, which leads to non-standardized construction process and low construction efficiency. The fixed-position adding device can realize standardized construction, the first bolt support has high strength, rigidity and stability, and can improve the construction efficiency while ensuring the construction quality. 3. By arranging the first leveling nuts for installing the top thread of the embedded bolt to be added with fixed positions on the upper end of the first positioning plate, and arranging a plurality of first horizontal fine adjustment bolts on the outer side of each first leveling nut along the circumferential direction, the elevation of the corresponding embedded bolt in the height direction can be fine adjusted through the first leveling nut, and the horizontal position and perpendicularity of the corresponding embedded bolt can be fine adjusted through the first horizontal fine adjustment bolt, so as to ensure that the horizontal distance, vertical distance and elevation of each embedded bolt of the embedded bolt group pre-assembled on the first bolt support meet the design and installation requirements, thereby meeting the high-precision positioning requirements of the embedded bolt group. 4. By arranging four positioning control piles for installing the horizontal transverse and horizontal longitudinal ends of the center position of the embedded bolt group of the equipment foundation in the mill equipment canopy area, and arranging steel wires between the two positioning control piles located at the horizontal transverse ends and between the two positioning control piles located at the horizontal longitudinal ends, the positioning control piles and the steel wires form a "cross" intersection axis network to form an independent positioning control axis network. Compared with the existing technology of using the temporary measures such as the civil engineering template to position each embedded bolt group of the equipment foundation in the mill equipment canopy area by using the line positioning, the stability of the positioning control axis network assembly of the fixed-position adding device is better, and is not easy to be disturbed and deviated, thereby further improving the positioning accuracy of each embedded bolt group of the equipment foundation in the mill equipment canopy area.

[0011] Preferably, a second positioning plate parallel to the first positioning plate is arranged between the middle portions of the first upright columns, and second bolt holes corresponding to the positions of the first bolt holes are formed through the second positioning plate in the height direction, for the straight-buried bolts to be fixed to pass through and position the lower portions of the straight-buried bolts; and a plurality of first horizontal fine-tuning bolts are arranged along the circumferential direction of each second bolt hole.

[0012] Preferably, a first cross beam, a second cross beam and a third cross beam are arranged between the upper portions, the middle portions and the lower portions of the two adjacent first upright columns in the height direction, respectively; the first cross beam is abutted to one end of the first positioning plate facing the second positioning plate in the height direction; the second cross beam is abutted to one end of the second positioning plate away from the first positioning plate in the height direction; and the first cross beam, the second cross beam, the third cross beam, the first positioning plate and the second positioning plate are detachably connected to the first upright columns by fastening bolts.

[0013] Preferably, four first bolt supports are arranged, and the four first bolt supports are distributed at the four corner positions of a square arranged with the intersection of the two steel wires as the center; two first bolt supports located on the same horizontal transverse line are connected by a transverse reinforcing plate, and two first bolt supports located on the same horizontal longitudinal line are connected by a longitudinal reinforcing plate.

[0014] Preferably, each positioning control pile comprises a concrete base block and a portal steel frame arranged at the relatively upper end of the concrete base block in the height direction, and the steel wire is connected to the horizontal beam of the portal steel frame.

[0015] Preferably, a second bolt support is further included, and the second bolt support and the first bolt support are respectively used for fixing a direct-buried bolt group at different elevations; the second bolt support includes four second vertical columns, the height of the second vertical columns is greater than the height of the first vertical columns, a third positioning plate is welded between the upper ends of the four second vertical columns in the height direction, third bolt holes are arranged on the third positioning plate in correspondence with the number and arrangement positions of the direct-buried bolts of the direct-buried bolt group to be fixed, a second leveling nut is arranged at the upper end of the third positioning plate in correspondence with the position of each third bolt hole, the second leveling nut is used for being installed on the top thread of the direct-buried bolt to be fixed, and is used for fine-tuning the elevation of the direct-buried bolt to be fixed in the height direction; a plurality of second horizontal fine-tuning bolts are arranged on the outer side of each second leveling nut in the circumferential direction; six groups of cross struts are welded in the height direction between two second vertical columns located on the same straight line in the horizontal longitudinal direction, and the uppermost group of cross struts in the height direction abuts against the opposite lower end of the third positioning plate in the height direction; the opposite lower end of the second bolt support in the height direction is provided with a second embedded part, and the opposite upper end of the second embedded part and the first embedded part in the height direction is flush.

[0016] Preferably, a fourth positioning plate parallel to the third positioning plate is welded between the four second vertical columns, the fourth positioning plate abuts against the next upper group of cross struts in the height direction; fourth bolt holes are formed in the fourth positioning plate in correspondence with the positions of the third bolt holes in the height direction, and the fourth bolt holes are used for the direct-buried bolts to be fixed to pass through and position and reinforce the lower part of the direct-buried bolt; a plurality of second horizontal fine-tuning bolts are arranged in the circumferential direction of each fourth bolt hole at intervals; and / or, five groups of inclined struts are welded in the height direction between two second vertical columns located on the same straight line in the horizontal longitudinal direction, the five groups of inclined struts are arranged in a broken line shape, and each group of inclined struts is located between two adjacent groups of cross struts in the height direction.

[0017] According to the second aspect of the present application, a direct-buried bolt group construction method is provided, which uses the fixing device provided in the first aspect, and the construction method includes the following steps:

[0018] A positioning control axis network is established, a set construction position of the direct-buried bolt group of the equipment foundation is selected at the construction site, a positioning control pile is arranged at each of the two ends of the horizontal transverse and horizontal longitudinal center positions of the direct-buried bolt group of the equipment foundation, and a steel wire is arranged between the two positioning control piles at the two ends of the horizontal transverse and between the two positioning control piles at the two ends of the horizontal longitudinal, and the positioning control piles and the steel wire form a “cross” intersection axis network;

[0019] The first embedded part is placed according to the set position on the construction drawing, and is pre-embedded by first concrete pouring;

[0020] Assembling the first bolt support, and preassembling each direct-buried bolt of the direct-buried bolt group corresponding to the position to be fixed into the corresponding first bolt hole of the first bolt support;

[0021] Hoisting the first bolt support preassembled with the direct-buried bolt group to the position preliminarily positioned with the corresponding first embedded part according to the construction drawing, and fixing by welding;

[0022] Adjusting the elevation of each direct-buried bolt preassembled on the first bolt support in the height direction, and adjusting the horizontal position and perpendicularity by the first leveling nut and the first horizontal fine adjustment bolt, so as to ensure that the horizontal distance, vertical distance and elevation of each direct-buried bolt of the direct-buried bolt group preassembled on the first bolt support meet the requirements of the design drawing;

[0023] Pouring and forming the concrete.

[0024] According to the direct-buried bolt group construction method, at least the following technical effects are achieved:

[0025] 1. The construction method comprises the following steps: a first bolt hole is arranged on a first positioning plate corresponding to the number and arrangement position of a direct-buried bolt group, each direct-buried bolt of the corresponding direct-buried bolt group is preassembled and fixed in the corresponding first bolt hole before construction, the first bolt support preassembled with the corresponding direct-buried bolt group is welded and fixed on the corresponding first embedded part preembedded in the construction position, and the positioning and reinforcement of the direct-buried bolt group are realized. The construction method uses an independent fixing position system to fix the direct-buried bolt group, and does not weld and reinforce the foundation steel, so that the direct-buried bolt group is effectively prevented from being deviated due to various reasons such as concrete pouring and vibrating, hardening shrinkage, steel binding and welding stress shrinkage during construction, the installation precision of the direct-buried bolt group is improved, and the high precision requirement of the equipment foundation in the mill equipment canopy area is met. 2. The construction method uses a first bolt support to position and reinforce the corresponding direct-buried bolt group, and compared with the prior art which uses steel bars, channel steels and other scattered components for reinforcement, no standardized product is used, the on-site construction process is not standardized, and the construction efficiency is low. The construction method can realize standardized construction, the first bolt support has high strength, rigidity and stability, the construction efficiency is improved, and the construction quality is ensured. 3. A first leveling nut is arranged on the upper end of the first positioning plate and used for installing the top thread of the direct-buried bolt to be fixed, a plurality of first horizontal fine adjustment bolts are arranged on the outer side of each first leveling nut along the circumferential direction, the elevation of the corresponding direct-buried bolt in the height direction is fine adjusted through the first leveling nut, and the horizontal position and perpendicularity of the corresponding direct-buried bolt are fine adjusted through the first horizontal fine adjustment bolt, so that the horizontal distance, vertical distance and elevation of each direct-buried bolt of the direct-buried bolt group preassembled on the first bolt support meet the design installation requirement, and the high-precision positioning requirement of the direct-buried bolt group is met. 4. Four positioning control piles are arranged at the two ends of the horizontal transverse and horizontal longitudinal center positions of the direct-buried bolt group of the equipment foundation in the mill equipment canopy area, and a steel wire is arranged between the two positioning control piles at the two ends of the horizontal transverse and between the two positioning control piles at the two ends of the horizontal longitudinal. The positioning control pile and the steel wire form a "cross" intersection axis network, form an independent positioning control axis network, and compared with the prior art which uses the temporary measures such as the civil engineering template to position each direct-buried bolt group of the equipment foundation in the mill equipment canopy area, the stability of the positioning control axis network assembly of the construction method is better, and the positioning precision of each direct-buried bolt group of the equipment foundation in the mill equipment canopy area is further improved.

[0026] Preferably, the first bolt support is provided with four, after preassembling each group of straight-buried bolts on the corresponding first bolt support, the four first bolt supports are hoisted to the four corner positions of the square arranged with the intersection of two steel wires as the axis, and are preliminarily positioned and fixed with the corresponding first embedded part;

[0027] After the elevation, horizontal position and perpendicularity of each straight-buried bolt preassembled on the first bolt support are fine-tuned along the height direction by the first leveling nut and the first horizontal fine-tuning bolt, a transverse reinforcing plate is welded and fixed between two first bolt supports located on the same straight line in the horizontal transverse direction, and a longitudinal reinforcing plate is welded and fixed between two first bolt supports located on the same straight line in the horizontal longitudinal direction.

[0028] Preferably, a second bolt support is further included, the second bolt support includes four second columns, the height of the second column is greater than the height of the first column, a third positioning plate is welded between the upper ends of the four second columns along the height direction, the third positioning plate is provided with third bolt holes corresponding to the number and arrangement position of the straight-buried bolts of the group of straight-buried bolts to be fixed at the position, a second leveling nut is arranged at the position corresponding to each third bolt hole at the upper end of the third positioning plate, the second leveling nut is used for mounting on the top thread of the straight-buried bolt to be fixed at the position and fine-tuning the elevation of the straight-buried bolt to be fixed at the position along the height direction, a plurality of second horizontal fine-tuning bolts are arranged on the outer side of each second leveling nut along the circumferential direction thereof, and six groups of transverse struts are welded along the height direction between two second columns located on the same straight line in the horizontal longitudinal direction, wherein the uppermost group of transverse struts along the height direction abuts against the opposite lower end of the third positioning plate along the height direction, and each second bolt support is provided with a second embedded part at the opposite lower end along the height direction.

[0029] The second embedded part is placed according to the set position on the construction drawing at the same time when the first embedded part is placed according to the set position on the construction drawing, the opposite upper ends of the second embedded part and the first embedded part along the height direction are kept flush, and the first embedded part and the second embedded part are simultaneously pre-buried by first concrete pouring;

[0030] Before concrete pouring and forming, the required second bolt support is assembled, each straight-buried bolt of the group of straight-buried bolts to be fixed at the position corresponding to the elevation requirement is preassembled in the corresponding third bolt hole of the second bolt support, and the second bolt support preassembled with the group of straight-buried bolts is hoisted to the position preliminarily positioned with the corresponding second embedded part and is fixed by welding;

[0031] The second leveling nut and the second horizontal fine adjustment bolt are used for fine adjustment of the elevation of each direct-buried bolt preassembled on the second bolt support in the height direction and fine adjustment of the horizontal position and perpendicularity, so that the horizontal distance, vertical distance and elevation between each direct-buried bolt of the direct-buried bolt group preassembled on the second bolt support meet the requirements of design drawings;

[0032] The positioning control shaft net is used for positioning the horizontal distance, vertical distance and diagonal line between the direct-buried bolt group preassembled on the first bolt support and the direct-buried bolt group preassembled on the second bolt support.

[0033] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0035] Figure 1 A structure schematic diagram of a fixed position device of an embodiment of the present application;

[0036] Figure 2 An assembly three-dimensional structure schematic diagram of a first bolt support and a first embedded part in an embodiment of the present application;

[0037] Figure 3 An assembly three-dimensional structure schematic diagram of a first bolt support and a first embedded part in an embodiment of the present application; Figure 2 An enlarged schematic diagram of part of the structure in the present application;

[0038] Figure 4 An assembly structure schematic diagram of a second bolt support and a second embedded part in an embodiment of the present application.

[0039] Explanation of reference signs:

[0040] 1-first bolt support, 11-first vertical column, 12-first positioning plate, 13-first leveling nut, 14-first horizontal fine adjustment bolt, 15-second positioning plate, 16-first horizontal beam, 17-second horizontal beam, 18-third horizontal beam, 19-fastening bolt;

[0041] 2-first embedded part, 21-first mounting plate, 22-first plug-in column;

[0042] 31-positioning control pile, 311-concrete base block, 312-gantry steel frame, 32-steel wire;

[0043] 4 - second bolt support, 41 - second upright, 42 - third positioning plate, 43 - cross brace, 44 - second horizontal fine adjustment bolt, 45 - fourth positioning plate, 46 - diagonal brace, 47 - tie support;

[0044] 5 - second embedded part, 51 - second mounting plate, 52 - second plug-in post;

[0045] 61 - transverse reinforcing plate, 62 - longitudinal reinforcing plate. DETAILED DESCRIPTION

[0046] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0047] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0050] The equipment base fixing bolts of the mill equipment canopy area are constructed by using the direct-buried bolt mode. Each mill equipment canopy area includes a total of 30 direct-buried bolts of two types, which are four groups of M80 bolts, each group having six bolts, for a total of 24 bolts, and two groups of M36 bolts, each group having three bolts, for a total of six bolts. The positioning requirements of the 30 direct-buried bolts are extremely high. The elevation of the M36 bolt group is higher than that of the M80 bolt group. One group of M36 bolts and two groups of M80 bolts are located on the same horizontal transverse line, and the M36 bolt group is not located between the two groups of M80 bolts along the same horizontal transverse line. Since the positioning requirements of the 30 direct-buried bolts of the mill equipment canopy area are extremely high, how to ensure the fixing and positioning accuracy of these bolt groups is a major problem in the construction of the mill foundation. Therefore, it is necessary to design a fixing and positioning device to specifically solve the fixing and positioning problem of the high-precision direct-buried bolt group.

[0051] Embodiment one

[0052] As Figures 1 to 3 shown is a fixing and positioning device provided by the present embodiment, which is applied to the fixing and positioning of the direct-buried bolt group of the mill equipment canopy area. The fixing and positioning device comprises a first bolt support 1, a first embedded part 2 and a positioning control shaft net assembly. The first bolt support 1 comprises four first vertical columns 11. A first positioning plate 12 is arranged between the upper ends of the four first vertical columns 11 in the height direction. The first positioning plate 12 is preferably provided with first bolt holes corresponding to the number and arrangement position of the M80 direct-buried bolts of the M80 direct-buried bolt group to be fixed and positioned. A first leveling nut 13 is arranged at the position of each first bolt hole on the upper end of the first positioning plate 12. The first leveling nut 13 is used for mounting on the top thread of the M80 direct-buried bolt to be fixed and positioned, and for fine-tuning the elevation of the M80 direct-buried bolt to be fixed and positioned in the height direction. Four first horizontal fine-tuning bolts 14 are arranged on the outer side of each first leveling nut 13 in the circumferential direction. The first embedded part 2 is arranged at the opposite lower end of each first vertical column 11 in the height direction, and is used for pre-embedding at the installation position. The positioning control shaft net assembly comprises four positioning control piles 31 arranged at the center positions of the horizontal transverse and horizontal longitudinal ends of the direct-buried bolt group of the equipment foundation. Steel wire 32 is arranged between the two positioning control piles 31 located at the horizontal transverse ends and between the two positioning control piles 31 located at the horizontal longitudinal ends. It can be understood that the height direction of the present embodiment refers to the height direction shown in Figure 1 , the horizontal transverse direction of the present embodiment refers to the horizontal transverse direction shown in Figure 1 , and the horizontal longitudinal direction of the present embodiment refers to the horizontal longitudinal direction shown in Figure 1 .

[0053] The embodiment of the present application is characterized in that a first bolt hole is arranged on the first positioning plate 12 corresponding to the number and arrangement position of the M80 direct-buried bolt group, each M80 direct-buried bolt of the corresponding M80 direct-buried bolt group can be preassembled and fixed in the corresponding first bolt hole before construction, thereby preassembling the corresponding M80 direct-buried bolt group on the first bolt support 1, then welding and fixing the first bolt support 1 preassembling the corresponding M80 direct-buried bolt group on the corresponding first embedded part 2 pre-embedded in the construction position, and realizing the positioning and reinforcement of the M80 direct-buried bolt group; the fixing position adding device of the embodiment uses an independent fixing position adding system to add the fixing position of the M80 direct-buried bolt group, and is not welded and reinforced with the foundation steel, which can effectively avoid the deviation of the M80 direct-buried bolt group caused by various reasons such as concrete pouring and vibrating, hardening shrinkage, steel binding and welding stress shrinkage during construction, improve the installation precision of the M80 direct-buried bolt group, and meet the high precision requirement of the equipment foundation in the mill equipment canopy area; the fixing position adding device of the embodiment uses the first bolt support 1 to position and reinforce the corresponding M80 direct-buried bolt group, which is different from the reinforcement of the prior art using steel bars, channel steels and other scattered components, and does not use standardized products, resulting in non-standardized construction process and low construction efficiency; the fixing position adding device of the embodiment can realize standardized construction, the first bolt support 1 has high strength, high rigidity and good stability, and can improve the construction efficiency while ensuring the construction quality; the first leveling nut 13 is arranged on the upper end of the first positioning plate 12 for installing the top thread of the M80 direct-buried bolt to be fixed, four first horizontal fine adjustment bolts 14 are arranged on the outer side of each first leveling nut 13 along the circumferential direction, the elevation of the corresponding M80 direct-buried bolt in the height direction can be fine adjusted through the first leveling nut 13, and the horizontal position and perpendicularity of the corresponding M80 direct-buried bolt can be fine adjusted through the four first horizontal fine adjustment bolts 14, so as to ensure that the horizontal distance, vertical distance and elevation of each M80 direct-buried bolt of the M80 direct-buried bolt group preassembled on the first bolt support 1 meet the design and installation requirements, thereby meeting the high-precision positioning requirement of the M80 direct-buried bolt group.Meanwhile, the positioning control piles 31 at the two ends of the horizontal transverse and horizontal longitudinal center positions of the four groups of M80 direct-buried bolt clusters for installing the equipment foundation in the mill equipment canopy area are arranged, and steel wire lines 32 are arranged between the two positioning control piles 31 at the two ends of the horizontal transverse and between the two positioning control piles 31 at the two ends of the horizontal longitudinal, and the positioning control piles 31 and the steel wire lines 32 form a “cross” intersection axis network to form an independent positioning control axis network. Compared with the prior art, the positioning of the various direct-buried bolt clusters of the equipment foundation in the mill equipment canopy area is performed by the line positioning on the temporary measures such as the civil engineering template. The positioning control axis network assembly with the fixing position device in the embodiment has better stability and is not prone to deviation caused by disturbance, and the positioning precision of the various M80 direct-buried bolt clusters of the equipment foundation in the mill equipment canopy area is further improved. Meanwhile, the steel wire line 32 is used to replace the traditional nylon line, which can ensure higher strength and positioning precision and the stability of the overall positioning control axis network.

[0054] It should be noted that the first bolt support 1 can also be used for positioning and fixing the M36 direct-buried bolt cluster of the equipment foundation in the mill equipment canopy area by adjusting the height of the first vertical column 11 and the size, number and arrangement profile of the first bolt hole of the first positioning plate 12, and has basically the same positioning and fixing effect as described above.

[0055] Considering that the M80 direct-buried bolt of the M80 direct-buried bolt cluster to be positioned and fixed has a relatively long length, only the top of the direct-buried bolt is positioned and fixed, and the stability is slightly insufficient. Figure 2 As shown in FIG. 6, in some embodiments of the present application, a second positioning plate 15 parallel to the first positioning plate 12 is arranged between the middle portions of the first vertical column 11, and a second bolt hole is formed through the second positioning plate 15 at a position corresponding to the first bolt hole in the height direction, and the second bolt hole is used for the M80 direct-buried bolt to be positioned and fixed to pass through and position and fix the lower portion of the M80 direct-buried bolt. The top and bottom of each M80 direct-buried bolt of the M80 direct-buried bolt cluster preassembled on the first bolt support 1 are respectively positioned and fixed by the first bolt hole and the second bolt hole, and the stability of the M80 direct-buried bolt preassembled on the first bolt support 1 is improved. In order to further improve the positioning precision of the direct-buried bolt preassembled on the first bolt support 1, as shown in FIG. 7, specifically, four first horizontal fine adjustment bolts 14 are arranged at intervals in the circumferential direction of each second bolt hole. Figure 2

[0056] As shown in FIG. 8, in some embodiments of the present application, the first horizontal fine adjustment bolt 14 is arranged in the circumferential direction of the second bolt hole at a position corresponding to the first positioning plate 12. Figure 2 and Figure 3 ​As shown, in some embodiments of the present application, the first cross beam 16 is arranged at the upper part of the first column 11 in the height direction, the second cross beam 17 is arranged at the middle part of the first column 11 in the height direction, and the third cross beam 18 is arranged at the lower part of the first column 11 in the height direction. The first cross beam 16 abuts against one end of the first positioning plate 12 in the height direction towards the second positioning plate 15. The second cross beam 17 abuts against one end of the second positioning plate 15 in the height direction away from the first positioning plate 12. The first cross beam 16, the second cross beam 17, the third cross beam 18, the first positioning plate 12, and the second positioning plate 15 are all detachably connected with the first column 11 through the fastening bolt 19. The first cross beam 16, the second cross beam 17, and the third cross beam 18 support the upper part, the middle part, and the lower part of the first bolt support 1 in the height direction, respectively, further improving the overall structural strength of the first bolt support 1. The first cross beam 16 and the second cross beam 17 abut against the opposite lower ends of the first positioning plate 12 and the second positioning plate 15 in the height direction, respectively, effectively avoiding the deformation of the first positioning plate 12 and the second positioning plate 15, thereby improving the stability of the direct-buried bolt group preassembled on the first bolt support 1. At the same time, the various components of the first bolt support 1 are detachably assembled through the fastening bolt 19. On the one hand, this facilitates the standardization of the various components of the first bolt support 1 after processing in the factory, and on the other hand, according to the needs of direct-buried bolt groups of different diameters, different spacings, and different elevations (the elevation change range is greater than the range that can be adjusted by the first leveling nut 13), only the first column 11 with the corresponding length, the first positioning plate 12 with the corresponding number and spacing of first bolt holes, and the second positioning plate 15 with the corresponding number and spacing of second bolt holes need to be replaced, without the need to change the sizes and types of other components of the first bolt support 1 to meet the needs of direct-buried bolts of different diameters, different spacings, and different elevations, thereby achieving good standardization and versatility.

[0057] It should be noted that by welding the lower ends of the four first columns 11 of the first bolt support 1 to the corresponding first embedded parts 2, the stability of the first bolt support 1 can be effectively improved. Figure 2As shown, specifically, each first embedded part 2 comprises a first mounting plate 21 for welding reinforcement with the corresponding first column 11, and four first plug-in columns 22 arranged at the four corner positions of the end face of the first mounting plate 21 away from the first column 11. The first embedded part 2 needs to be pre-embedded in the soil at the first time of concrete pouring and is stably inserted into the soil by the first plug-in column 22, so as to ensure the positioning accuracy and stability of the first embedded part 2. The various components of the first bolt support 1 are standardized processed in a processing factory, the first positioning plate 12 and the second positioning plate 15 are punched by using a numerical control machine tool, and the allowable deviation of the die hole is that the distance between any two holes in the same group is ≤±1mm. After the various components of the first bolt support 1 are completed, transportation and on-site assembly are performed, and an effective and stable support system can be formed by welding with the first embedded part 2 pre-embedded in the set installation position, so as to facilitate the convenient and efficient installation of the directly-buried bolt.

[0058] Specifically, the first cross beam 16, the second cross beam 17, the third cross beam 18 and the first column 11 are all made of C14b channel steel, and the first positioning plate 12 and the second positioning plate 15 are all made of 10mm thick steel plate, so as to ensure that the first bolt support 1 has sufficient strength and rigidity.

[0059] As shown in the drawings, Figure 1 As shown in the drawings, in some embodiments of the present application, the first bolt support 1 is provided with four first bolt supports 1, which are distributed at the four corner positions of the square arranged with the intersection of the two steel wire lines 32 as the center. The two first bolt supports 1 located on the same straight line in the horizontal transverse direction are connected by a transverse reinforcing plate 61, and the two first bolt supports 1 located on the same straight line in the horizontal longitudinal direction are connected by a longitudinal reinforcing plate 62. The four first bolt supports 1 are used for respectively pre-installing four M80 directly-buried bolt groups of the equipment foundation of the mill equipment canopy area, and the independent positioning control axis net formed by the positioning control axis net assembly is used as the positioning control reference of the four M80 directly-buried bolt groups for positioning installation, which can ensure that the horizontal distance, longitudinal distance and diagonal line between the bolt groups of the four M80 directly-buried bolt groups meet the design drawing requirements, thereby meeting the higher precision requirements of the equipment foundation of the mill equipment canopy area. At the same time, by connecting the two first bolt supports 1 located on the same straight line in the horizontal transverse direction by the transverse reinforcing plate 61 and connecting the two first bolt supports 1 located on the same straight line in the horizontal longitudinal direction by the longitudinal reinforcing plate 62, the four first bolt supports 1 are combined into a whole, so as to further limit the positional relationship between the four M80 directly-buried bolt groups installed on the four first bolt supports 1, and further ensure that the four M80 directly-buried bolt groups do not deviate and do not have relative displacement during the pouring of concrete, thereby further ensuring the high precision requirements of the M80 directly-buried bolt.

[0060] As Figure 1 shown, in some embodiments of the present application, each positioning control pile 31 comprises a concrete base block 311 and a portal steel frame 312 arranged at the relatively upper end of the concrete base block 311 in the height direction, and the steel wire 32 is connected to the horizontal beam of the portal steel frame 312. The portal steel frame 312 made of steel is used as the part of the positioning control pile 31 connected with the steel wire 32, and the portal steel frame 312 is embedded in the concrete base block 311, which can ensure sufficient strength and rigidity, and ensure that it does not deform and deviate during construction, thereby ensuring the stability of the positioning and measuring control axis network formed. Specifically, the portal steel frame 312 uses 12.6 channel steel, and the concrete base block 311 uses C30 concrete.

[0061] Considering that the equipment base in the rolling mill equipment canopy area includes two types of M80 bolt groups and M36 bolt groups, the installation elevation of the M36 bolt groups is higher than that of the M80 bolt groups, and the number of bolts in each M36 bolt group is less than that in each M80 bolt group, in the process of installing and fixing the M36 bolt groups by using the first bolt support 1, since the height of the first bolt support 1 for preinstalling the M36 bolt groups is relatively higher and thinner than that of the first bolt support 1 for preinstalling the M80 bolt groups, if the installation elevation of the M36 bolt groups is much higher than that of the M80 bolt groups, the problem of insufficient strength and rigidity of the first bolt support 1 for preinstalling the M36 bolt groups is prone to occur; in order to avoid the above situation, as Figure 1 and Figure 4As shown, in some embodiments of the present application, a second bolt support 4 is further included, and the first bolt support 1 and the second bolt support 4 are respectively used for fixing M36 direct-buried bolt groups and M80 direct-buried bolt groups of the equipment foundation in the mill equipment canopy area; the second bolt support 4 includes four second columns 41, the height of the second column 41 is greater than the height of the first column 11, four second columns 41 are welded with a third positioning plate 42 at the upper end in the height direction, the third positioning plate 42 is provided with third bolt holes corresponding to the number and arrangement position of the M36 direct-buried bolts of the M36 direct-buried bolt groups to be fixed, the upper end of the third positioning plate 42 is provided with a second leveling nut corresponding to the position of each third bolt hole, the second leveling nut is used for installing the top thread of the M36 direct-buried bolt to be fixed, and is used for fine adjustment of the elevation of the M36 direct-buried bolt to be fixed in the height direction; four second horizontal fine adjustment bolts 44 are arranged on the outer side of each second leveling nut along the circumferential direction; six groups of cross braces 43 are welded in the height direction between two second columns 41 located on the same straight line in the horizontal longitudinal direction, and the uppermost group of cross braces 43 abuts against the opposite lower end of the third positioning plate 42 in the height direction; the opposite lower end of the second bolt support 4 in the height direction is provided with a second embedded part 5, and the opposite upper end of the second embedded part 5 and the first embedded part 2 in the height direction is flush. In this embodiment, the third bolt holes on the third positioning plate 42 are used to pre-fix each M36 direct-buried bolt of the corresponding M36 direct-buried bolt group, so as to pre-fix the corresponding M36 direct-buried bolt group on the second bolt support 4, and a set of independent fixing system is used to fix the M36 direct-buried bolt group, which is not welded with the reinforcement to be fixed, so as to effectively avoid the M36 direct-buried bolt group from being deviated due to various reasons such as concrete pouring and vibrating, hardening shrinkage, reinforcement binding and welding stress shrinkage in the construction process, improve the installation precision of the M36 direct-buried bolt group, and meet the higher precision requirement of the equipment foundation in the mill equipment canopy area. Secondly, the fixing device of this embodiment uses the second bolt support 4 to fix the corresponding M36 direct-buried bolt group, which is different from the prior art using reinforcement, channel steel and other scattered components for reinforcement, and does not use standardized products, resulting in no standardization of the on-site construction process and low construction efficiency. The fixing device of this embodiment can realize standardized construction; meanwhile, the third positioning plate 42 is connected with the second column 41 by welding, six groups of cross braces 43 are welded in the height direction between two second columns 41 located on the same straight line in the horizontal longitudinal direction, and the uppermost group of cross braces 43 abuts against the opposite lower end of the third positioning plate 42 in the height direction, so as to improve the strength, rigidity and stability of the second bolt support 4 which is high and thin, thereby improving the construction efficiency while ensuring the construction quality.A second leveling nut is then provided at the upper end of the third positioning plate 43 for mounting on the top threaded head of the M36 direct-embedded bolt to be secured. Four second horizontal fine-tuning bolts 44 are circumferentially disposed outside each second leveling nut. The second leveling nut allows for fine-tuning of the height of the corresponding M36 direct-embedded bolt, while the four second horizontal fine-tuning bolts 44 collaboratively fine-tune the horizontal position and verticality of the corresponding M36 direct-embedded bolt. This ensures that the horizontal and vertical distances, as well as the height, of each M36 direct-embedded bolt in the corresponding M36 direct-embedded bolt group pre-installed on the second bolt bracket 4 meet the design and installation requirements, thereby satisfying the high-precision positioning requirements for the M36 direct-embedded bolt group. Furthermore, by aligning the relative upper ends of the second embedded component 5 and the first embedded component 2 in the height direction, the height-direction positional accuracy of the M36 direct-embedded bolt group pre-installed on the second bolt bracket 4 and the M80 direct-embedded bolt group pre-installed on the first bolt bracket 1 is ensured.

[0062] Considering that the length of the M36 direct-buried bolts in the M36 direct-buried bolt group to be positioned and fixed is relatively long, the stability is slightly insufficient by only positioning and fixing the top of the M36 direct-buried bolts; Figure 4 As shown, in some embodiments of the present invention, a fourth positioning plate 45 parallel to the third positioning plate 42 is welded between the four second uprights 41. The fourth positioning plate 45 abuts against a group of the cross braces 43 located next above in the height direction. A fourth bolt hole is formed through the fourth positioning plate 45 at a position corresponding to the third bolt hole. The fourth bolt hole is used to pass through the M36 direct-buried bolt to be reinforced and positioned to reinforce the lower portion of the M36 direct-buried bolt. The third and fourth bolt holes cooperate to position and secure the top and bottom of each M36 direct-buried bolt in the corresponding group of M36 direct-buried bolts pre-installed on the second bolt bracket 4, thereby improving the stability of the M36 direct-buried bolts pre-installed on the second bolt bracket 4. To further improve the positioning accuracy of the M36 direct-buried bolts pre-installed on the second bolt bracket 4, four second horizontal fine-tuning bolts 44 are specifically provided at intervals along the circumference of each fourth bolt hole.

[0063] In order to further improve the strength, rigidity and stability of the taller and thinner second bolt bracket 4, and to prevent it from being disturbed during construction and causing positioning deviation. Figure 4 As shown, in some embodiments of the present invention, five groups of diagonal braces 46 are welded between two of the second columns 41 located on the same horizontal and longitudinal straight line at intervals along the height direction. The five groups of diagonal braces 46 are arranged in a broken line shape, and each group of the diagonal braces 46 is located between two adjacent groups of the horizontal braces 43 along the height direction.

[0064] Considering that in the installation design of the directly buried bolt group of the equipment foundation in the arch area of ​​the rolling mill equipment, two groups of M36 directly buried bolt groups are installed on the left side of the corresponding two groups of M80 directly buried bolt groups along the horizontal direction, and each group of M36 directly buried bolt groups and the corresponding group of M80 directly buried bolt groups are located on the same straight line in the horizontal direction, that is, the two second bolt brackets 4 for reinforcing and positioning the two groups of M36 directly buried bolt groups and the corresponding two first bolt brackets 1 for reinforcing and positioning the M80 directly buried bolt groups are required to maintain the stability between their positions to prevent them from being disturbed during the construction process and causing positioning deviation; Figure 1 and Figure 4 As shown, in some embodiments of the present invention, three groups of tie supports 47 are arranged on the second bolt bracket 4 at intervals along the height direction. Each group of tie supports 47 is parallel to the horizontal direction and is used to weld and fix with the adjacent first bolt bracket 1 located in the same straight line in the horizontal direction. It can be understood that the left side along the horizontal direction described in this embodiment is based on Figure 1 perspective.

[0065] Specifically, since the second bolt bracket 4 is taller and thinner, in order to ensure sufficient strength, rigidity and stability, the second column 41 adopts C14b channel steel, the diagonal brace 46, the horizontal brace 43, and the tie support 47 all adopt angle steel with a side length of 50×5, the third positioning plate 42 and the fourth positioning plate 45 both adopt 10mm thick steel plates, and the various components of the second bolt bracket 4 are all connected by welding.

[0066] It should be noted that by welding and reinforcing the lower ends of the four second uprights 41 of the second bolt bracket 4 to the corresponding two second embedded parts 5, the stability of the second bolt bracket 4 can be effectively improved. Figure 4 As shown, specifically, each second embedded part 5 includes a second mounting plate 51 for welding and reinforcing the two second columns 41 located in the same horizontal line, and six second plug-in columns 52 arranged on the end face of the second mounting plate 51 away from the second column 41. After the second embedded part 5 is manufactured, it needs to be pre-embedded in advance during the first concrete pouring and rely on the second plug-in columns 52 to be stably plugged into the soil to ensure the positioning accuracy and stability of the second embedded part 5; the various components of the second bolt bracket 4 are standardized in the processing plant, and the third positioning plate 42 and the fourth positioning plate 45 are punched using a CNC machine tool. The allowable deviation of the mold opening is: the distance between any two holes in the same group is ≤±1mm; after the various components of the second bolt bracket 4 are manufactured, they are transported and welded and assembled on site. By welding with the second embedded part 5 pre-embedded in the set installation position, an effective and stable support system can be formed, which is convenient and efficient for the installation of direct-buried bolts.

[0067] Example 2

[0068] As Figures 1 to 3 A direct-buried bolt group construction method provided in the embodiment is shown, and the fixed position adding device in embodiment one is adopted. The construction method comprises the following steps:

[0069] A positioning control axis network is established. The set construction position of the direct-buried bolt group of the equipment foundation in the rolling mill equipment canopy area is selected at the construction site. One positioning control pile 31 is arranged at each end of the horizontal transverse and horizontal longitudinal center position of the direct-buried bolt group of the equipment foundation. Steel wire 32 is arranged between the two positioning control piles 31 at the ends of the horizontal transverse and between the two positioning control piles 31 at the ends of the horizontal longitudinal. The positioning control pile 31 and the steel wire 32 form a "cross" intersection axis network.

[0070] The first embedded part 2 is placed according to the set position of the construction drawing, and is pre-buried by the first concrete pouring. The overall measurement of all first embedded parts 2 is accurately positioned by the positioning control axis network.

[0071] According to the first bolt support 1 required by the corresponding assembly of the M80 direct-buried bolt group or the M36 direct-buried bolt group to be added with a fixed position, each M80 direct-buried bolt or each M36 direct-buried bolt corresponding to the M80 direct-buried bolt group or the M36 direct-buried bolt group to be added with a fixed position is pre-assembled in the corresponding first bolt hole of the first bolt support 1.

[0072] The first bolt support 1 pre-assembled with the direct-buried bolt group is hoisted to the position preliminarily positioned with the corresponding first embedded part 2 according to the construction drawing, and is fixed by welding.

[0073] The elevation of each direct-buried bolt (specifically M80 direct-buried bolt or M36 direct-buried bolt) pre-assembled on the first bolt support 1 in the height direction is fine-tuned, and the horizontal position and perpendicularity are fine-tuned by the first leveling nut 13 and the first horizontal fine-tuning bolt 14, so as to ensure that the horizontal distance, vertical distance and elevation of each direct-buried bolt of the direct-buried bolt group pre-assembled on the first bolt support 1 meet the design drawing requirements.

[0074] The concrete is poured and formed to obtain the equipment foundation.

[0075] The construction method of this embodiment is to provide first bolt holes on the first positioning plate 12 corresponding to the number and arrangement positions of the M80 direct-buried bolts or M36 direct-buried bolts of the M80 direct-buried bolt group or the M36 direct-buried bolt group to be fixed. Before construction, a first bolt bracket 1 that is adapted can be assembled according to the model of the direct-buried bolt group to be pre-installed and fixed; each direct-buried bolt of the corresponding model of the direct-buried bolt group is pre-installed and fixed in the corresponding first bolt hole, thereby pre-installing the corresponding direct-buried bolt group on the first bolt bracket 1, and then the pre-installed corresponding direct-buried bolt is fixed. The first bolt bracket 1 of the bolt group is welded and fixed to the corresponding first embedded part 2 embedded in the construction position, so as to realize the positioning and reinforcement of the direct-buried bolt group. This construction method uses an independent reinforcement and positioning system to reinforce the direct-buried bolt group, and does not weld and reinforce it with the foundation steel bars. This can effectively prevent the direct-buried bolt group from being displaced due to various reasons such as concrete pouring vibration, hardening shrinkage, steel bar binding, welding stress shrinkage, etc. during the construction process, thereby improving the installation accuracy of the direct-buried bolt group, thereby meeting the higher precision requirements of the equipment foundation in the arch area of ​​the rolling mill equipment. The construction method of this embodiment uses a standardized first bolt bracket 1 to position and reinforce the corresponding M80 direct-buried bolt group or M36 direct-buried bolt group. Compared with the prior art that uses scattered components such as steel bars and channel steel for reinforcement, no standardized products are used, resulting in non-standardized on-site construction technology and low construction efficiency. This construction method can realize standardized construction. The first bolt bracket 1 has high strength and rigidity and good stability, which improves construction efficiency while ensuring construction quality. The construction method of this embodiment is to provide a first leveling nut 13 at the upper end of the first positioning plate 12 for installing the top thread head of the direct-buried bolt (M80 direct-buried bolt or M36 direct-buried bolt) to be fixed, and four first horizontal fine-adjustment bolts 14 are provided on the outer side of each first leveling nut 13 along its circumference. The elevation of the corresponding direct-buried bolt along the height direction can be fine-tuned by the first leveling nut 13, and the horizontal position and verticality of the corresponding direct-buried bolt can be fine-adjusted by the four first horizontal fine-adjustment bolts 14 to ensure that the horizontal distance, vertical distance and elevation of each direct-buried bolt of the direct-buried bolt group pre-installed on the first bolt bracket 1 meet the design and installation requirements, thereby meeting the high-precision positioning requirements of the direct-buried bolt group.Meanwhile, by setting the positioning control piles 31 at the two ends of the horizontal transverse and horizontal longitudinal center positions of the four groups of directly-buried bolts for installing the equipment foundation in the rolling mill equipment canopy area, and by setting the steel wire 32 between the two positioning control piles 31 at the two ends of the horizontal transverse and between the two positioning control piles 31 at the two ends of the horizontal longitudinal, the positioning control piles 31 and the steel wire 32 form a cross-shaped intersection axis network to form an independent positioning control axis network. Compared with the prior art of positioning the various groups of directly-buried bolts of the equipment foundation in the rolling mill equipment canopy area by using the wire positioning on the temporary measures such as the civil engineering template, the positioning control axis network assembly of the construction method has better stability and is not prone to deviation caused by disturbance, thereby further improving the positioning accuracy of the various groups of directly-buried bolts of the equipment foundation in the rolling mill equipment canopy area.

[0076] In some embodiments of the present application, four first bolt supports 1 for four groups of M80 directly-buried bolts of the equipment foundation in the pre-installed and fixed-position rolling mill equipment canopy area are selected, and after the four groups of M80 directly-buried bolts are respectively pre-installed on the corresponding first bolt supports 1, the independent positioning control axis network formed by the positioning control axis network assembly is used as the positioning control reference of the four groups of M80 directly-buried bolts. The four first bolt supports 1 are hoisted to the four corner positions of the square arranged with the intersection of the two steel wires 32 as the axis, and are preliminarily positioned and fixed with the corresponding first embedded parts 2 and are welded and fixed to form an effective and stable support system, thereby facilitating the convenient and efficient installation of the M80 directly-buried bolts. It can be ensured that the horizontal distance, vertical distance, diagonal line, etc. between the bolt groups of the four groups of M80 directly-buried bolts meet the design drawing requirements.

[0077] After the elevation in the height direction, the horizontal position and the perpendicularity of each directly-buried bolt pre-installed on the first bolt support 1 are adjusted by the first leveling nut 13 and the first horizontal fine adjustment bolt 14, the transverse reinforcing plates 61 are welded and fixed between the two first bolt supports 1 located on the same straight line in the horizontal transverse direction, and the longitudinal reinforcing plates 62 are welded and fixed between the two first bolt supports 1 located on the same straight line in the horizontal longitudinal direction. The two transverse reinforcing plates 61 and the two longitudinal reinforcing plates 62 combine the four first bolt supports 1 into an integral whole, thereby further limiting the positional relationship between the four groups of M80 directly-buried bolts respectively installed on the four first bolt supports 1, and further ensuring that the four groups of M80 directly-buried bolts do not deviate and do not have relative displacement during the pouring of concrete, thereby further ensuring the high-precision requirement of the M80 directly-buried bolts.

[0078] Considering that the equipment base in the rolling mill equipment canopy area includes M80 bolt group and M36 bolt group, the installation elevation of the M36 bolt group is higher than that of the M80 bolt group, and the number of bolts in each M36 bolt group is less than that in each M80 bolt group, in the process of installing and fixing the M36 bolt group by using the first bolt support 1, since the height of the first bolt support 1 for preinstalling the M36 bolt group is relatively higher and thinner than that of the first bolt support 1 for preinstalling the M80 bolt group, if the installation elevation of the M36 bolt group is much higher than that of the M80 bolt group, the problem of insufficient strength and rigidity of the first bolt support 1 for preinstalling the M36 bolt group is prone to occur; in order to avoid the above-mentioned situation, as shown in Figure 1 and Figure 4 in some embodiments of the present application, a second bolt support 4 is further included, the second bolt support 4 and the first bolt support 1 are respectively used for fixing the M36 direct-buried bolt group and the M80 direct-buried bolt group of the equipment base in the rolling mill equipment canopy area; the second bolt support 4 includes four second vertical columns 41, the height of the second vertical column 41 is greater than the height of the first vertical column 11, four second vertical columns 41 are welded with a third positioning plate 42 between the upper ends in the height direction, the third positioning plate 42 is provided with third bolt holes corresponding to the number and arrangement position of the M36 direct-buried bolts of the M36 direct-buried bolt group to be fixed, a second leveling nut is arranged at the position corresponding to each third bolt hole at the upper end of the third positioning plate 42, the second leveling nut is used for installing the top thread of the M36 direct-buried bolt to be fixed, and is used for fine-tuning the elevation of the M36 direct-buried bolt to be fixed in the height direction; four second horizontal fine-tuning bolts 44 are arranged on the outer side of each second leveling nut along the circumferential direction thereof; six groups of cross braces 43 are welded in the height direction between two second vertical columns 41 located in the same straight line in the horizontal longitudinal direction, wherein the uppermost group of cross braces 43 in the height direction abuts against the opposite lower end of the third positioning plate 42 in the height direction; a second embedded part 5 is arranged at the opposite lower end of the second bolt support 4 in the height direction, the second embedded part 5 and the first embedded part 2 are flush at the opposite upper end in the height direction;

[0079] the first embedded part 2 is placed according to the set position on the construction drawing, and the second embedded part 5 is placed according to the set position on the construction drawing, the opposite upper end of the second embedded part 5 and the first embedded part 2 in the height direction is kept flush, and the first embedded part 2 and the second embedded part 5 are simultaneously pre-embedded by first concrete pouring; so as to ensure the positional relationship accuracy in the height direction of the M36 direct-buried bolt group preinstalled on the second bolt support 4 and the M80 direct-buried bolt group preinstalled on the first bolt support 1;

[0080] Before the concrete is poured, the second bolt support 4 required is assembled, the M36 direct-buried bolt group of the fixed position to be added corresponding to the elevation requirement is preassembled in the corresponding third bolt hole of the second bolt support 4, and the second bolt support 4 preassembled with the M36 direct-buried bolt group is hoisted to the position preliminarily positioned with the corresponding second embedded part 5 according to the construction drawing and is fixed by welding; the third positioning plate 42 is connected with the second upright column 41 by welding, six groups of cross braces 43 are welded in the height direction between two second upright columns 41 located on the same straight line in the horizontal longitudinal direction, and the uppermost group of cross braces 43 abuts against the opposite lower end of the third positioning plate 42 in the height direction, so that the strength, rigidity and stability of the second bolt support 4 which is high and thin are improved, so that the construction efficiency is improved while the construction quality is ensured;

[0081] The elevation in the height direction and the horizontal position and the perpendicularity of each M36 direct-buried bolt preassembled on the second bolt support 4 are fine adjusted through the second leveling nut and the second horizontal fine adjustment bolt 44, so that the horizontal distance, the vertical distance and the elevation between each M36 direct-buried bolt of the M36 direct-buried bolt group preassembled on the second bolt support 4 meet the design drawing requirements, so that the high-precision positioning requirements of the M36 direct-buried bolt group are met.

[0082] The horizontal distance, the vertical distance and the diagonal line between the M80 direct-buried bolt group preassembled on the first bolt support 1 and the M36 direct-buried bolt group preassembled on the second bolt support 4 are positioned through the positioning control shaft net, so that the construction positioning accuracy of the direct-buried bolt group of the equipment foundation of the rolling mill equipment canopy area is ensured.

[0083] Considering that in the installation design of the direct-buried bolt group of the equipment foundation of the rolling mill equipment canopy area, two groups of M36 direct-buried bolt groups are installed on the left side of the corresponding two groups of M80 direct-buried bolt groups in the horizontal transverse direction, and each group of M36 direct-buried bolt group and the corresponding group of M80 direct-buried bolt group are located on the same straight line in the horizontal transverse direction, that is, the two second bolt supports 4 for adding the fixed position of the two groups of M36 direct-buried bolt groups and the corresponding two first bolt supports 1 for adding the fixed position of the M80 direct-buried bolt group need to maintain the stability of the mutual position to prevent disturbance during construction and cause positioning deviation, in some embodiments of the present application, three groups of pull-in supports 47 are arranged in the height direction on the second bolt support 4, each group of the pull-in support 47 is parallel to the horizontal transverse direction, and is used for being welded and fixed with the first bolt support 1 adjacent to and located on the same straight line in the horizontal transverse direction. Figure 1 It can be understood that the left side in the horizontal transverse direction in the embodiment is described based on the perspective of

[0084] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and can not be enumerated. The obvious changes or variations derived from the above description are still within the protection scope of the present application.

Claims

1. A fixing device applied to a group of directly-buried bolts of a mill equipment foundation in a mill equipment housing area, characterized in that, The fixed-position adding device comprises: The first bolt support (1) comprises at least three first columns (11), a first positioning plate (12) is arranged between the upper ends of the first columns (11) in the height direction, first bolt holes are arranged on the first positioning plate (12) corresponding to the number and arrangement position of the straight-buried bolts of the straight-buried bolt group to be added with fixed positions, a first leveling nut (13) is arranged at the position corresponding to each first bolt hole at the upper end of the first positioning plate (12), the first leveling nut (13) is used for being installed on the top thread of the straight-buried bolt to be added with fixed positions and for fine-tuning the elevation of the straight-buried bolt to be added with fixed positions in the height direction, and a plurality of first horizontal fine-tuning bolts (14) are arranged on the outer side of each first leveling nut (13) in the circumferential direction; The first embedded part (2) is arranged at the opposite lower end of each first column (11) in the height direction, and is used for being pre-buried at the installation position; The positioning control shaft net assembly comprises four positioning control piles (31) arranged at the centers of the straight-buried bolt groups at the two ends of the horizontal transverse direction and the horizontal longitudinal direction of the equipment foundation respectively, and a steel wire (32) is arranged between the two positioning control piles (31) at the two ends of the horizontal transverse direction and between the two positioning control piles (31) at the two ends of the horizontal longitudinal direction; The second bolt support (4) and the first bolt support (1) are respectively used for adding fixed positions to straight-buried bolt groups at different elevations, the second bolt support (4) comprises four second columns (41), the height of the second column (41) is greater than the height of the first column (11), a third positioning plate (42) is welded between the upper ends of the four second columns (41) in the height direction, third bolt holes are arranged on the third positioning plate (42) corresponding to the number and arrangement position of the straight-buried bolts of the straight-buried bolt group to be added with fixed positions, a second leveling nut is arranged at the position corresponding to each third bolt hole at the upper end of the third positioning plate (42), the second leveling nut is used for being installed on the top thread of the straight-buried bolt to be added with fixed positions and for fine-tuning the elevation of the straight-buried bolt to be added with fixed positions in the height direction, a plurality of second horizontal fine-tuning bolts (44) are arranged on the outer side of each second leveling nut in the circumferential direction, six groups of cross braces (43) are welded in the height direction at intervals between two second columns (41) located on the same straight line in the horizontal longitudinal direction, and the uppermost group of cross braces (43) in the height direction abuts against the opposite lower end of the third positioning plate (42) in the height direction, and a second embedded part (5) is arranged at the opposite lower end of the second bolt support (4) in the height direction, and the second embedded part (5) is flush with the opposite upper end of the first embedded part (2) in the height direction.

2. A device according to claim 1, wherein The middle part of the first column (11) is provided with a second positioning plate (15) parallel to the first positioning plate (12), and a second bolt hole is formed through the second positioning plate (15) at a position corresponding to the first bolt hole in the height direction, which is used for the straight-buried bolt to be fixed to pass through and position the lower part of the straight-buried bolt; each second bolt hole is provided with a plurality of first horizontal fine adjustment bolts (14) at intervals in the circumferential direction.

3. A fixture according to claim 2, wherein The upper part, the middle part and the lower part of the adjacent two first columns (11) are respectively provided with a first cross beam (16), a second cross beam (17) and a third cross beam (18) in the height direction; one end of the first cross beam (16) abuts the first positioning plate (12) and faces the second positioning plate (15) in the height direction; one end of the second cross beam (17) abuts the second positioning plate (15) and faces away from the first positioning plate (12) in the height direction; the first cross beam (16), the second cross beam (17), the third cross beam (18), the first positioning plate (12) and the second positioning plate (15) are all detachably connected with the first column (11) through fastening bolts (19).

4. The apparatus of claim 1, wherein, The first bolt support (1) is provided with four first bolt supports (1), which are distributed at the four corner positions of the square arranged with the intersection of the two steel wires (32) as the center; wherein two first bolt supports (1) located on the same horizontal transverse line are connected through a transverse reinforcing plate (61), and two first bolt supports (1) located on the same horizontal longitudinal line are connected through a longitudinal reinforcing plate (62).

5. The apparatus of claim 1, wherein, Each positioning control pile (31) comprises a concrete base block (311) and a portal steel frame (312) arranged at the opposite upper end of the concrete base block (311) in the height direction, and the steel wire (32) is connected to the horizontal beam of the portal steel frame (312).

6. The apparatus of claim 1, wherein, Four second columns (41) are welded with a fourth positioning plate (45) parallel to the third positioning plate (42), and the fourth positioning plate (45) abuts on a group of cross braces (43) located above in the height direction; the fourth positioning plate (45) is provided with a fourth bolt hole at a position corresponding to the third bolt hole in the height direction, which is used for the straight-buried bolt to be fixed to pass through and position the lower part of the straight-buried bolt; each fourth bolt hole is provided with a plurality of second horizontal fine adjustment bolts (44) at intervals in the circumferential direction; and / or, two second columns (41) located on the same horizontal longitudinal line are all welded with five groups of inclined braces (46) at intervals in the height direction, five groups of inclined braces (46) are arranged in a polyline shape, and each group of inclined braces (46) is located between two adjacent groups of cross braces (43) in the height direction.

7. A method of installing a group of directly buried bolts, characterized by The construction method comprises the following steps: Establish a positioning control axis network, select the setting construction position of the direct-buried bolt group of the equipment foundation at the construction site, set one positioning control pile (31) at the horizontal transverse and horizontal longitudinal ends of the center position of the direct-buried bolt group of the equipment foundation, and set a steel wire (32) between the two positioning control piles (31) located at the horizontal transverse ends and between the two positioning control piles (31) located at the horizontal longitudinal ends, and the positioning control pile (31) and the steel wire (32) form a "cross" intersection axis network; Place the first embedded part (2) according to the setting position of the construction drawing, and pre-bury by the first concrete pouring; Assemble the required first bolt support (1), and pre-install each direct-buried bolt of the direct-buried bolt group corresponding to the to-be-fixed position in the corresponding first bolt hole of the first bolt support (1); Lift the first bolt support (1) pre-installed with the direct-buried bolt group to the position preliminarily positioned with the corresponding first embedded part (2) according to the construction drawing, and fix by welding; Adjust the elevation of each direct-buried bolt pre-installed on the first bolt support (1) in the height direction, and adjust the horizontal position and perpendicularity by the first leveling nut (13) and the first horizontal fine adjustment bolt (14), so as to ensure that the horizontal distance, vertical distance, and elevation of each direct-buried bolt of the direct-buried bolt group pre-installed on the first bolt support (1) meet the requirements of the design drawing; Pour and form the concrete.

8. The method of claim 7, wherein, The first bolt support (1) is provided with four, after pre-installing each direct-buried bolt group on the corresponding first bolt support (1), lift the four first bolt supports (1) to the four corner positions of the square arranged with the intersection point of the two steel wires (32) as the center, and preliminarily position and fix with the corresponding first embedded part (2); After adjusting the elevation of each direct-buried bolt pre-installed on the first bolt support (1) in the height direction, and adjusting the horizontal position and perpendicularity by the first leveling nut (13) and the first horizontal fine adjustment bolt (14), a horizontal reinforcing plate (61) is welded and fixed between the two first bolt supports (1) located on the same straight line in the horizontal transverse direction, and a vertical reinforcing plate (62) is welded and fixed between the two first bolt supports (1) located on the same straight line in the horizontal longitudinal direction.

9. The method of claim 7, wherein, Further comprising a second bolt support (4), the second bolt support (4) comprises four second columns (41), the height of the second column (41) is greater than the height of the first column (11), the upper end of the four second columns (41) is welded with a third positioning plate (42) in the height direction, the third positioning plate (42) is provided with a third bolt hole corresponding to the number and arrangement position of the embedded bolt of the embedded bolt group to be fixed on the upper end of the third positioning plate (42), the upper end of the third positioning plate (42) is provided with a second leveling nut corresponding to the position of each third bolt hole, the second leveling nut is used for installing on the top thread of the embedded bolt to be fixed, and is used for fine tuning the elevation of the embedded bolt to be fixed in the height direction; The outer side of each second leveling nut is provided with a plurality of second horizontal fine tuning bolts (44) along the circumferential direction; Six groups of cross braces (43) are welded in the height direction between two second columns (41) located in the same straight line in the horizontal longitudinal direction, wherein the uppermost group of cross braces (43) in the height direction abuts against the opposite lower end of the third positioning plate (42) in the height direction; The opposite lower end of the second bolt support (4) in the height direction is provided with a second embedded part (5); The first embedded part (2) is placed according to the set position of the construction drawing, and the second embedded part (5) is placed according to the set position of the construction drawing, the opposite upper end of the second embedded part (5) and the first embedded part (2) in the height direction is kept flush, and the first embedded part (2) and the second embedded part (5) are simultaneously embedded by the first concrete pouring; Before the concrete pouring and forming, the required second bolt support (4) is assembled, the embedded bolts of the embedded bolt group to be fixed at the required elevation are preassembled in the corresponding third bolt hole of the second bolt support (4), and the second bolt support (4) preassembled with the embedded bolt group is hoisted to the position preliminarily positioned with the corresponding second embedded part (5) according to the construction drawing, and is fixed by welding; The elevation of each embedded bolt preassembled on the second bolt support (4) in the height direction is fine tuned, and the horizontal position and perpendicularity are fine tuned through the second leveling nut and the second horizontal fine tuning bolt (44), so that the horizontal distance, vertical distance and elevation between each embedded bolt of the embedded bolt group preassembled on the second bolt support (4) meet the design drawing requirements; The horizontal distance, vertical distance and diagonal line between the embedded bolt group preassembled on the first bolt support (1) and the embedded bolt group preassembled on the second bolt support (4) are positioned by the positioning control axis net.

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