Prefabricated inverted arch mounting device and method capable of achieving quick positioning

Abstract

The invention provides a prefabricated inverted arch mounting device and method capable of achieving quick positioning, the prefabricated inverted arch mounting device capable of achieving quick positioning comprises a bottom plate, two positioning vertical rods perpendicular to the bottom plate are symmetrically arranged at the top of the bottom plate, a supporting rod is slidably arranged between the two positioning vertical rods in the vertical direction, and a positioning rod is arranged between the two positioning vertical rods. A sliding sleeve is rotationally arranged on the supporting rod, a scale supporting plate is fixedly arranged at the bottom of the sliding sleeve, a sliding sleeve is arranged on the scale supporting plate in a sliding mode, and a positioning plate perpendicular to the scale supporting plate is arranged on the sliding sleeve. According to the positioning device, the bottom plate is installed on the tunnel primary support bottom plate according to measurement, the positioning vertical rods can limit one side of the prefabricated inverted arch when the prefabricated inverted arch is hoisted, positioning of the prefabricated inverted arch is rapidly achieved, operation is easy, and the positioning device meets the installation and positioning requirements of the prefabricated inverted arches of different sizes and shapes.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel engineering, and in particular relates to a prefabricated invert installation device and method capable of rapid positioning. Background Art

[0002] The invert is a reverse arch structure set at the bottom of the tunnel to improve the stress conditions of the upper supporting structure. It is one of the main components of the tunnel structure. On the one hand, it effectively transfers the stratum pressure above the tunnel to the underground through the tunnel side wall structure or the load on the road surface, and on the other hand, it effectively resists the reaction force from the stratum below the tunnel.

[0003] In tunnel construction, the installation of prefabricated inverts is an important link, which is directly related to the overall stability of the tunnel structure and the construction efficiency. In the prior art, a Chinese invention patent application with application publication number CN118601611A discloses a tunnel invert prefabricated block and a positioning and installation method. The invert prefabricated block is hoisted to the installation position, and the invert prefabricated block is accurately positioned by measurement so that the convex surface of the invert prefabricated block to be installed is aligned with the concave surface of the installed invert prefabricated block; this installation and positioning method requires manual calibration and multiple adjustments, which is time-consuming and labor-intensive, and is prone to errors.

[0004] Therefore, it is necessary to design a prefabricated invert installation device and method that can quickly complete the positioning of the prefabricated invert, is easy to operate and can adapt to the installation requirements of prefabricated inverts of different sizes and shapes to solve the current technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a prefabricated invert installation device and method that can quickly complete the positioning of the prefabricated invert, is easy to operate and can adapt to the installation requirements of prefabricated inverts of different sizes and shapes.

[0006] The technical solution of the present invention is: a prefabricated arch installation device that can be quickly positioned, comprising a base plate, two positioning uprights perpendicular to the base plate are symmetrically arranged on the top of the base plate, a support rod is slidably arranged along the vertical direction between the two positioning uprights, a sliding sleeve is rotatably arranged on the support rod, a scale support plate is fixedly arranged at the bottom of the sliding sleeve, a sliding sleeve is slidably arranged on the scale support plate, and a positioning plate perpendicular to the scale support plate is arranged on the sliding sleeve.

[0007] An adjustment groove is provided on the positioning pole in the vertical direction, and the end of the support rod has a stop edge that abuts against the inner side of the positioning pole. An external threaded end is fixedly provided on the stop edge on the side facing away from the support rod. The external threaded end is slidably arranged inside the adjustment groove, and a locking nut is assembled on the external threaded end for locking or releasing it with the positioning pole.

[0008] A first locking bolt is arranged on the outer side of the sliding sleeve along its radial direction, the first locking bolt is threadedly connected to the sliding sleeve, and an end of the first locking bolt corresponds to the outer side of the support rod.

[0009] A second locking bolt is vertically arranged on one side of the slide seat, the second locking bolt is threadedly connected to the slide seat, and the end of the second locking bolt corresponds to the outer side of the scale support plate.

[0010] A connecting rod is fixedly connected between the two sliding seats.

[0011] The bottom plate is evenly provided with mounting holes.

[0012] The mounting hole is a waist-shaped hole opened on the bottom plate along a direction perpendicular to the support rod.

[0013] The bottom plate is a rectangular plate.

[0014] The positioning vertical plate is a long strip plate body which is vertically welded and fixed on the top of the bottom plate.

[0015] A method for installing a prefabricated invert that can be quickly positioned comprises the following steps:

[0016] S1, before the prefabricated invert is hoisted, the contour line of the prefabricated invert after actual installation is drawn according to the measurement, and the prefabricated invert installation device corresponding to the two adjacent sides of the prefabricated invert is first fixed on the tunnel primary support bottom plate according to the contour line;

[0017] S2, hoisting the prefabricated inverted arch to a predetermined position and slowly dropping it, and when the prefabricated inverted arch is close to two prefabricated inverted arch installation devices that can be quickly positioned, adjusting the position of the prefabricated inverted arch so that it is closely attached to one side of the positioning uprights in the two prefabricated inverted arch installation devices that can be quickly positioned;

[0018] S3, hoisting the prefabricated inverted arch block down to the designed height and then stopping, adjusting the angle of the positioning plate according to the position of the prefabricated inverted arch corresponding to the positioning plate, and then adjusting the height of the support rod in the vertical direction so that the top of the positioning plate is against the top of the prefabricated inverted arch;

[0019] S4, a prefabricated invert arch installation device that can be quickly positioned and corresponds to the other two side surfaces of the prefabricated invert arch is fixedly installed on the tunnel primary support bottom plate so that one side of the positioning upright pole is closely attached;

[0020] S5, installing a cushion block between two positioning plates in a prefabricated inverted arch installation device that can be quickly positioned below the prefabricated inverted arch, and then moving and adjusting the positioning plate along the scale support plate so that the positioning plate is flush with the top of the installation cushion block, and recording the scale values ​​before and after the positioning plate is adjusted;

[0021] S6, calculating the difference between the scale values ​​recorded before and after the adjustment of the positioning plate in step S5, and obtaining the spatial height between the top of the cushion block and the bottom of the prefabricated invert, and selecting a steel plate of corresponding thickness to fill the space above the cushion block according to the spatial height;

[0022] S7, lower the support rod 4, remove the bottom plate 1 from the tunnel primary support bottom plate, and remove the prefabricated invert installation device that can be quickly positioned;

[0023] S8, check the elevation of the precast invert and inject grout underneath the precast invert.

[0024] Beneficial effects of the present invention:

[0025] (1) In the present invention, the bottom plate is installed on the tunnel primary support bottom plate according to the measurement, and the positioning pole can limit one side of the prefabricated inverted arch when it is hoisted, so as to quickly realize the positioning of the prefabricated inverted arch, which is easy to operate and adapts to the installation and positioning requirements of prefabricated inverted arches of different sizes and shapes;

[0026] (2) Since there is usually a movable space between the bottom of the prefabricated inverted arch and the cushion block, it is necessary to fill the space with a steel plate during installation to ensure the accuracy of the support height of the prefabricated inverted arch. The positioning plates are respectively flush with the top of the cushion block at the bottom of the prefabricated inverted arch, and the scale difference on the scale support plate corresponding to the positioning plate is read and the difference is calculated to obtain the spatial height between the top of the cushion block and the bottom of the prefabricated inverted arch. According to the spatial height, a steel plate of corresponding thickness is selected to fill the space above the cushion block tightly, thereby providing stable support for the prefabricated inverted arch.

[0027] (3) The prefabricated invert installation device that can be quickly positioned can be dismantled after the prefabricated invert is stably supported by the pads and steel plates, which is convenient for turnover and recycling, thereby reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is one of the structural schematic diagrams of the prefabricated invert arch installation device that can be quickly positioned in the present invention.

[0029] Figure 2 This is the second structural schematic diagram of the prefabricated inverted arch installation device that can be quickly positioned in the present invention. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to be any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limitations.

[0031] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] like Figure 1 and 2 As shown, a prefabricated inverted arch installation device that can be quickly positioned comprises a base plate 1, two positioning uprights 2 perpendicular to the base plate 1 are symmetrically arranged on the top of the base plate 1, a support rod 4 is slidably arranged between the two positioning uprights 2 along the vertical direction, a sliding sleeve 5 is rotatably arranged on the support rod 4, a scale support plate 7 is fixedly arranged at the bottom of the sliding sleeve 5, a length scale is arranged on one side of the scale support plate 7, a sliding sleeve 5 is slidably arranged on the scale support plate 7, and a positioning plate 6 perpendicular to the scale support plate 7 is arranged on the sliding sleeve 5; in this embodiment, the base plate 1 is installed on the initial support base plate of the tunnel according to measurement, and the positioning uprights 2 can limit one side of the prefabricated inverted arch when it is hoisted, so as to quickly realize the positioning of the prefabricated inverted arch, and it is easy to operate. The invention can be used to install and position prefabricated inverted arches of different sizes and shapes; since there is usually a movable space between the bottom of the prefabricated inverted arch and the cushion block, it is necessary to fill the space with a steel plate during installation to ensure the accuracy of the support height of the prefabricated inverted arch. The positioning plates 6 are respectively flush with the top of the cushion block at the bottom of the prefabricated inverted arch, and the scale difference on the scale support plate 7 corresponding to the positioning plate 6 is read and the difference is calculated to obtain the spatial height between the top of the cushion block and the bottom of the prefabricated inverted arch. According to the spatial height, a steel plate of corresponding thickness is selected to fill the space above the cushion block tightly to provide stable support for the prefabricated inverted arch; the prefabricated inverted arch installation device that can be quickly positioned can be dismantled after the prefabricated inverted arch is stably supported by the cushion block and the steel plate, which is convenient for turnover and recycling, and reduces construction costs.

[0033] In some embodiments, an adjustment groove 3 is opened on the positioning pole 2 in the vertical direction, and the end of the support rod 4 has a stop edge 41 that abuts against the inner side of the positioning pole 2. The stop edge 41 and the support rod 4 are an integral structure, and an external thread end 42 is fixedly provided on the side of the stop edge 41 that is away from the support rod 4. The external thread end 42 is slidably set inside the adjustment groove 3, and a locking nut 43 is assembled on the external thread end 42 for locking or releasing it from the positioning pole 2; after tightening the locking nut 43, the locking nut 43 abuts against the side of the positioning pole 2, and the support rod 4 can be locked with the positioning pole 2; after loosening the locking nut 43, the locking nut 43 is separated from the side of the positioning pole 2, and the support rod 4 can be released from the positioning pole 2.

[0034] In some embodiments, a first locking bolt 51 is provided on the outer side of the sliding sleeve 5 along its radial direction, and the first locking bolt 51 is threadedly connected to the sliding sleeve 5, and the end of the first locking bolt 51 corresponds to the outer side of the support rod 4; the first locking bolt 51 is screwed forward and backward so that the end of the first locking bolt 51 is against or separated from the outer side of the support rod 4, so that the sliding sleeve 5 and the support rod 4 can be locked or released.

[0035] In some embodiments, a second locking bolt 81 is vertically arranged on one side of the slide seat 8, and the second locking bolt 81 is threadedly connected to the slide seat 8, and the end of the second locking bolt 81 corresponds to the outer side of the scale support plate 7; the second locking bolt 81 is screwed forward and backward so that the end of the second locking bolt 81 is against or separated from the outer side of the scale support plate 7, which can lock or release the slide seat 8 and the scale support plate 7.

[0036] In some embodiments, a connecting rod 82 is fixedly connected between the two slide seats 8 , and two ends of the connecting rod 82 are fixedly connected to one side of the two slide seats 8 , respectively.

[0037] In some embodiments, the base plate 1 is evenly provided with mounting holes 11, and expansion bolts corresponding to the mounting holes are installed on the tunnel primary support base plate. The base plate can be fixed to the tunnel primary support base plate by cooperating with the mounting holes 11 and the expansion bolts.

[0038] In some embodiments, the mounting hole 1 is a waist-shaped hole opened on the base plate 1 in a direction perpendicular to the support rod 4, and the position of the base plate 1 can be moved and fine-tuned through the waist-shaped hole to improve the positioning accuracy of the prefabricated invert.

[0039] In some embodiments, the base plate 1 is a rectangular plate, and the positioning vertical plate 2 is a long strip plate vertically welded and fixed on the top of the base plate 1 .

[0040] In some embodiments, a method for installing a prefabricated invert that can be quickly positioned is disclosed, comprising the following steps:

[0041] S1, before the prefabricated invert is hoisted, the contour line of the prefabricated invert after actual installation is drawn according to the measurement, and the prefabricated invert installation device corresponding to the two adjacent sides of the prefabricated invert is first fixed on the tunnel primary support bottom plate according to the contour line;

[0042] S2, hoisting the prefabricated inverted arch to a predetermined position and slowly dropping it, until the prefabricated inverted arch approaches two prefabricated inverted arch installation devices that can be quickly positioned, adjusting the position of the prefabricated inverted arch so that it is closely attached to one side of the positioning uprights in the two prefabricated inverted arch installation devices that can be quickly positioned, thereby achieving the positioning of the prefabricated inverted arch in the horizontal direction;

[0043] S3, hoisting the prefabricated inverted arch block down to the designed height and then stopping, adjusting the angle of the positioning plate according to the position of the prefabricated inverted arch corresponding to the positioning plate, and then adjusting the height of the support rod in the vertical direction so that the top of the positioning plate is against the top of the prefabricated inverted arch;

[0044] S4, a prefabricated inverted arch installation device that can be quickly positioned corresponding to the other two sides of the prefabricated inverted arch is fixedly installed on the tunnel primary support bottom plate, and the prefabricated inverted arch is closely attached to one side of the positioning pole 2;

[0045] S5, installing a spacer between two positioning plates 6 in a prefabricated inverted arch installation device that can be quickly positioned below the prefabricated inverted arch, and then moving and adjusting the positioning plate 6 along the scale support plate 7 so that the positioning plate 6 is flush with the top of the installation spacer, and recording the scale values ​​of the positioning plate 6 before and after adjustment;

[0046] S6, calculating the difference between the scale values ​​recorded before and after the adjustment of the positioning plate in step S5, and obtaining the spatial height between the top of the cushion block and the bottom of the prefabricated invert, and selecting a steel plate of corresponding thickness to fill the space above the cushion block according to the spatial height;

[0047] S7, lower the support rod 4, remove the bottom plate 1 from the tunnel primary support bottom plate, and remove the prefabricated invert installation device that can be quickly positioned;

[0048] S8, check the elevation of the precast invert and inject grout underneath the precast invert.

[0049] Specifically, in the above step S1, the bottom plate 1 of the prefabricated invert arch installation device that can be quickly positioned is fixed to the tunnel primary support bottom plate by expansion bolts.

[0050] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0051] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A prefabricated invert installation device capable of rapid positioning, characterized in that: It includes a base plate, and two positioning uprights perpendicular to the base plate are symmetrically arranged on the top of the base plate, a support rod is slidably arranged along the vertical direction between the two positioning uprights, a sliding sleeve is rotatably arranged on the support rod, a scale support plate is fixedly arranged at the bottom of the sliding sleeve, a sliding sleeve is slidably arranged on the scale support plate, and a positioning plate perpendicular to the scale support plate is arranged on the sliding sleeve.

2. The prefabricated invert installation device capable of rapid positioning according to claim 1, characterized in that: An adjustment groove is provided on the positioning pole in the vertical direction, and the end of the support rod has a stop edge that abuts against the inner side of the positioning pole. An external threaded end is fixedly provided on the stop edge on the side facing away from the support rod. The external threaded end is slidably arranged inside the adjustment groove, and a locking nut is assembled on the external threaded end for locking or releasing it with the positioning pole.

3. The prefabricated invert installation device capable of rapid positioning according to claim 1, characterized in that: A first locking bolt is arranged on the outer side of the sliding sleeve along its radial direction, the first locking bolt is threadedly connected to the sliding sleeve, and an end of the first locking bolt corresponds to the outer side of the support rod.

4. The prefabricated invert installation device capable of rapid positioning according to claim 1, characterized in that: A second locking bolt is vertically arranged on one side of the slide seat, the second locking bolt is threadedly connected to the slide seat, and the end of the second locking bolt corresponds to the outer side of the scale support plate.

5. The prefabricated invert installation device capable of rapid positioning according to claim 1, characterized in that: A connecting rod is fixedly connected between the two sliding seats.

6. The prefabricated invert installation device capable of rapid positioning according to claim 1, characterized in that: The bottom plate is evenly provided with mounting holes.

7. The prefabricated invert installation device capable of rapid positioning according to claim 6, characterized in that: The mounting hole is a waist-shaped hole opened on the bottom plate along a direction perpendicular to the support rod.

8. The prefabricated invert installation device capable of rapid positioning according to claim 1, characterized in that: The bottom plate is a rectangular plate.

9. The prefabricated invert installation device capable of rapid positioning according to claim 8, characterized in that: The positioning vertical plate is a long strip plate body which is vertically welded and fixed on the top of the bottom plate.

10. A method for installing a prefabricated invert that can be quickly positioned, characterized in that: The following steps are involved: S1, before the prefabricated invert is hoisted, the contour line of the prefabricated invert after actual installation is drawn according to the measurement, and the prefabricated invert installation device corresponding to the two adjacent sides of the prefabricated invert is first fixed on the tunnel primary support bottom plate according to the contour line; S2, hoisting the prefabricated inverted arch to a predetermined position and slowly dropping it, and when the prefabricated inverted arch is close to two prefabricated inverted arch installation devices that can be quickly positioned, adjusting the position of the prefabricated inverted arch so that it is closely attached to one side of the positioning uprights in the two prefabricated inverted arch installation devices that can be quickly positioned; S3, hoisting the prefabricated inverted arch block down to the designed height and then stopping, adjusting the angle of the positioning plate according to the position of the prefabricated inverted arch corresponding to the positioning plate, and then adjusting the height of the support rod in the vertical direction so that the top of the positioning plate is against the top of the prefabricated inverted arch; S4, a prefabricated invert arch installation device that can be quickly positioned and corresponds to the other two side surfaces of the prefabricated invert arch is fixedly installed on the tunnel primary support bottom plate so that one side of the positioning upright pole is closely attached; S5, installing a cushion block between two positioning plates in a prefabricated inverted arch installation device that can be quickly positioned below the prefabricated inverted arch, and then moving and adjusting the positioning plate along the scale support plate so that the positioning plate is flush with the top of the installation cushion block, and recording the scale values ​​before and after the positioning plate is adjusted; S6, calculating the difference between the scale values ​​recorded before and after the adjustment of the positioning plate in step S5, and obtaining the spatial height between the top of the cushion block and the bottom of the prefabricated invert, and selecting a steel plate of corresponding thickness to fill the space above the cushion block according to the spatial height; S7, lower the support rod 4, remove the bottom plate 1 from the tunnel primary support bottom plate, and remove the prefabricated invert installation device that can be quickly positioned; S8, check the elevation of the precast invert and inject grout underneath the precast invert.

Images