Permanent and temporary integrated full dry splicing support structure and construction method thereof

Abstract

The present application belongs to the field of foundation pit supporting structure, and particularly relates to a permanent and temporary integrated full dry splicing supporting structure and a construction method thereof. The permanent and temporary integrated full dry splicing supporting structure comprises a diaphragm wall, a surrounding purlin assembly, a longitudinal beam and column assembly and a plurality of supporting plates. The surrounding purlin assembly comprises at least two surrounding purlins, and a vertical block surrounding purlin is arranged between every two surrounding purlins. The longitudinal beam and column assembly comprises at least two longitudinal beams, and further comprises a column connected with the plurality of longitudinal beams. The supporting plate is used to form a horizontal plate surface between the surrounding purlins and the longitudinal beams when pouring concrete in a plane, and is also used to form a temporary vertical support between the vertical block surrounding purlins and the column in the construction process. The present application adds the vertical block surrounding purlin component, so that the supporting plate and the column have a new function of building a temporary vertical support in addition to the original function, thereby improving the supporting stability and safety of the whole process and ensuring the construction efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of foundation pit supporting structure, and particularly relates to a permanent and temporary integrated full dry splicing supporting structure and a construction method thereof. BACKGROUND

[0002] With the rapid development of China's economy in this century, urbanization and the growth of urban population have been greatly promoted, leading to the increasingly tight urban land. In order to effectively improve the land use rate of the city, underground facilities such as underground shopping malls, underground garages, underground rail transit and civil air defense projects are increasing in major cities, which promotes the vigorous development of underground engineering. No matter using open excavation method, cover excavation method or underground excavation method, the supporting structure needs to be constructed in advance, the purpose of which is to realize the support of soil pressure and water pressure, and at the same time, to prevent collapse, the internal support structure needs to be constructed while the earthwork excavation is carried out. However, with the increasing depth of foundation pit excavation, the supporting structure needed to maintain the safety of foundation pit construction becomes more and more complex. The existing supporting structure often needs cast-in-place concrete, and the force system transmission of the wet splicing joint is affected by many factors such as curing conditions, material differences, manual operation, etc., which poses a great challenge to the safety risk of construction. At the same time, the cast-in-place concrete supporting structure greatly increases the construction period of underground engineering, which has a long-term and continuous disturbance to the overall management and operation of the city. Therefore, the current supporting structure is mostly cast-in-place structure, which makes the construction process complex, the construction period long, and there is a safety risk due to the structural difference and construction contingency of cast-in-place concrete. SUMMARY

[0003] The technical problem to be solved by the application is to provide a permanent and temporary integrated full dry splicing supporting structure and a construction method thereof which are simple in construction process and safe.

[0004] The application provides a permanent and temporary integrated full dry splicing supporting structure, which comprises a diaphragm wall, a surrounding purlin assembly, a longitudinal beam and column assembly and a plurality of support plates, the diaphragm wall and the surrounding purlin assembly are symmetrically provided with two groups, the longitudinal beam and column assembly and the plurality of support plates are arranged between the two groups of diaphragm walls.

[0005] The surrounding purlin assembly comprises at least two surrounding purlins arranged from top to bottom, and a plurality of vertical block surrounding purlins are arranged transversely and spaced apart between every two surrounding purlins.

[0006] The longitudinal beam and column assembly comprises at least two longitudinal beams arranged from top to bottom, and a plurality of columns connecting the plurality of longitudinal beams, the plurality of columns are arranged along the length direction of the surrounding purlin.

[0007] The plurality of vertical block surrounding purlins and the plurality of columns correspond to each other in the length direction of the surrounding purlin.

[0008] The support plate is used to be erected between the purlin and the longitudinal beam to form a horizontal plate surface when pouring concrete on a flat surface. It is also used to be detachably erected between the vertical block purlin and the column to form a temporary vertical support during the construction process.

[0009] The beneficial effect of the present invention is that, by newly setting up the vertical block purlin component, the present invention enables the support plates and columns to have a new function of building temporary vertical supports in addition to their original functions. The temporary vertical supports can improve the support stability and safety of the entire process of building the dry-assembled support structure and pouring concrete, and are only disassembled when the temporary vertical support position is finally needed to be poured. After disassembly, they are directly used as spare plates for building horizontal plate surfaces, reducing the number of times the support plates are transported from above the foundation pit, greatly simplifying the construction difficulty and improving the construction efficiency.

[0010] In addition, the present application can use all prefabricated structures as support structures, and perform dry splicing on site without cast-in-place, thereby shortening the construction period of underground projects. Through the design of temporary load-bearing components and main structural components, after the temporary load-bearing components have completed their support function, they can be easily disassembled and used as main structural components, or they can be directly used as main structural components after concrete pouring, thereby saving underground project construction costs and avoiding pollution to the underground environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attachment Figure 1 This is a first angle structural diagram of the installation process of the permanent and temporary integrated dry-jointed support structure as a support plate for the horizontal plate surface in the present invention; Figure 2 This is a second angle structural diagram of the installation process of the permanent and temporary integrated dry-jointed support structure as a support plate for the horizontal plate surface in the present invention; Figure 3 Schematic diagram of the installation process of the support plate of the permanent and temporary integrated dry-jointed support structure as a temporary vertical support in the present invention; Figure 4 This is a structural diagram of the permanent and temporary integrated dry-jointed support structure of the present invention after the support plate is installed as a temporary vertical support; Figure 5 This is a structural diagram of the present invention's permanent and temporary integrated dry-jointed support structure after the support plate of the horizontal plate surface is installed; Figure 6 Schematic diagram of the first angle structure of one of the purlins in the permanent and temporary integrated dry-jointed support structure of the present invention; Figure 7 Schematic diagram of the second angle structure of one of the purlins in the permanent and temporary integrated dry-jointed support structure of the present invention; Figure 8 This is a structural diagram of one type of support plate in the permanent and temporary integrated dry-jointed support structure of the present invention; Figure 9 Schematic diagram of the structure of the vertical block purlin in the permanent and temporary integrated dry-jointed support structure of the present invention; Figure 10It is the structure schematic view of the wallboard corresponding to the vertical block surrounding purlin in the permanent and temporary integrated full dry splicing support structure in the application. Figure 11 It is the structure schematic view of the wallboard corresponding to the vertical block surrounding purlin in the permanent and temporary integrated full dry splicing support structure in the application. Figure 12 It is the structure schematic view of the vertical block surrounding purlin in the permanent and temporary integrated full dry splicing support structure in the application. Figure 13 It is the structure schematic view of the vertical block surrounding purlin in the permanent and temporary integrated full dry splicing support structure in the application. Figure 14 It is the structure schematic view of the vertical block surrounding purlin in the permanent and temporary integrated full dry splicing support structure in the application. Figure 15 It is the structure schematic view of the vertical block surrounding purlin in the permanent and temporary integrated full dry splicing support structure in the application. Figure 16 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 17 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 18 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 19 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 20 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 21 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 22 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 23 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 24 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 25 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 26 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 27 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 28 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application. Figure 29 It is the installation process schematic view of the support plate in the permanent and temporary dry splicing self-sensing support plate structure in the application.

[0012] In the figure, 1 - diaphragm wall; 101 - wall plate; 1011 - embedded groove; 1012 - splicing interface; 1013 - vertical block surrounding purlin interface; 2 - surrounding purlin assembly; 201 - surrounding purlin; 2011 - splicing joint; 202 - vertical block surrounding purlin; 2021 - base plate; 20211 - vertical surrounding purlin socket; 2022 - mounting portion; 2023 - limiting plate; 3 - longitudinal beam and column assembly; 301 - longitudinal beam; 3011 - socket; 3012 - slot; 302 - column; 3021 - vertical lapping block; 3022 - horizontal lapping block; 4 - support plate; 401 - support sliding groove; 4011 - arc-shaped sliding groove; 4012 - lapping protrusion; 40121 - through hole I; 4013 - limiting protrusion; 402 - clamping structure; 403 - contact pre-buried hole; 404 - clamping portion II; 5 - support sliding way; 501 - arc-shaped sliding block; 502 - lapping step; 5021 - through hole II; 503 - limiting step; 6 - lapping groove; 7 - clamping matching structure; 8 - self-sensing system; 801 - power supply; 802 - indicator light; 803 - joint; 804 - contact; 8041 - compressible portion; 8042 - conductive portion; 8043 - protective layer; 805 - power supply joint; 806 - power supply contact; 807 - power supply line; 808 - contact lead wire; 9 - clamping portion I; 10 - locking piece; 1001 - connecting rod; 1002 - clamping matching portion; 11 - bolt fastener; 12 - correction hand lever; 1201 - lever body; 1202 - protrusion I; 1203 - protrusion II. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application. It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directionality indications also change accordingly. In addition, the descriptions such as “first”, “second” and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with “first” and “second” can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of “plurality” is at least two, for example, two, three, etc., unless otherwise specifically limited. In the present application, unless otherwise specifically defined and limited, the terms “connection”, “fixation” and the like should be understood in a broad sense, for example, “fixation” can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection, or physical connection, or wireless communication connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For a person 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. In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0014] As shown in the accompanying Figure 1 -attached Figure 29As shown, the application provides a permanent and temporary integrated full dry splicing support structure, which comprises a diaphragm wall 1, a surrounding purlin assembly 2, a longitudinal beam and column assembly 3 and a plurality of support plates 4, the diaphragm wall 1 and the surrounding purlin assembly 2 are symmetrically provided with two groups, preferably, the two groups of diaphragm walls 1 and surrounding purlin assemblies 2 are mirror-symmetrically arranged, the longitudinal beam and column assembly 3 and the plurality of support plates 4 are arranged between the two groups of diaphragm walls 1, wherein the diaphragm wall 1 is used to support both sides of the excavated foundation pit, avoid the collapse of the earthwork on both sides of the foundation pit, realize the support and resistance to the earth pressure and water pressure, and after the excavation of the foundation pit, it can be used to provide a formwork for the side concrete pouring, while the support plate 4 is used to support the two diaphragm walls 1 longitudinally, avoid the two diaphragm walls 1 from being tilted by the pressure of the earthwork on both sides of the foundation pit, on the other hand, it is used as a formwork for pouring the concrete bottom surface, while the longitudinal beam and column assembly 3 is used to provide support for the support plate 4 in the middle direction of the foundation pit, and is used as an inner formwork for the pouring of the middle concrete column and provides support;

[0015] Reference is made to the accompanying drawings Figure 4 and the accompanying drawings Figure 5 , the surrounding purlin assembly 2 comprises at least two surrounding purlins 201 arranged from top to bottom, the number of surrounding purlins 201 is determined according to the depth of the foundation pit and the number of layers of the horizontal plate, and a plurality of vertical block surrounding purlins 202 are transversely (along the length direction of the surrounding purlin 201) arranged between every two surrounding purlins 201;

[0016] Reference is made to the accompanying drawings Figure 1 , the longitudinal beam and column assembly 3 comprises at least two longitudinal beams 301 arranged from top to bottom, the number of longitudinal beams 301 is consistent with the number of surrounding purlins 201, and the longitudinal beam 301 and the surrounding purlin 201 correspond to each other in the longitudinal direction, and reference is made to the accompanying drawings Figure 15 , the longitudinal beam and column assembly 3 further comprises a plurality of columns 302 connecting a plurality of longitudinal beams 301, and the plurality of columns 302 are arranged at intervals along the length direction of the surrounding purlin 201, and reference is made to the accompanying drawings Figure 5 , the longitudinal beam 301 is used to support and fix the support plate 4 for forming the horizontal plate, and the column 302 is used to support and fix the longitudinal beam 301, and reference is made to the accompanying drawings Figure 4 , the column 302 is also used to support and fix the vertically arranged support plate 4 for forming the temporary vertical support;

[0017] The plurality of vertical block surrounding purlins 202 and the plurality of columns 302 correspond to each other in the length direction of the surrounding purlin 201, and the support plate 4 is further erected to form the temporary vertical support;

[0018] Reference is made to the accompanying drawings Figure 5, the support plate 4 is used to form a horizontal plate surface between the surrounding purlin 201 and the longitudinal beam 301 when pouring concrete in a plane, at this time, after the construction process of the full dry splicing support structure is completed, the concrete pouring process is carried out, the support plate 4 is laid on the plane part between the surrounding purlin 201 and the longitudinal beam 301 to form a horizontal plate surface, and then support the horizontal concrete in the foundation pit which is not the bottom surface (the concrete bottom surface is directly poured on the bottom of the foundation pit). Referring to the accompanying drawings Figure 4 , the support plate 4 is also used to form a temporary vertical support between the vertical block surrounding purlin 202 and the column 302 during construction. That is, during the construction process of the full dry splicing support structure, the support plate 4 is also used to provide a vertical support between the two surrounding purlins 201 and the longitudinal beams 301, to provide support for the longitudinal interval part between the two surrounding purlins 201, greatly improving the overall construction stability and reliability of the full dry splicing support structure during the construction process, improving safety, and the temporary vertical support can maintain the construction process of the full dry splicing support structure, and during the concrete pouring process, the support plate 4 used as the temporary vertical support is removed one by one according to the pouring progress of the concrete, continuously ensuring the support stability of the full dry splicing support structure during the concrete pouring process, until the position of the temporary vertical support needs to be poured, then it is removed, achieving the best use of resources, and after removal, it can be immediately used as a backup plate for the support plate 4 used to build a horizontal plate surface above, which can replace or reduce the number of support plates 4 transported from above the foundation pit to build a horizontal plate surface, greatly improving the utilization value of the support plate 4, simplifying the construction difficulty and improving the construction efficiency.

[0019] That is, by adding the vertical block surrounding purlin 202 component, the support plate 4 and the column 302 have added a function of building a temporary vertical support beyond the original function, and the temporary vertical support can improve the support stability and safety of the full dry splicing support structure during the construction process and the concrete pouring process, and is removed only when the position of the temporary vertical support needs to be poured, and is directly used as a backup plate for the support plate 4 used to build a horizontal plate surface after removal, reducing the number of support plates 4 transported from above the foundation pit, greatly simplifying the construction difficulty and improving the construction efficiency. In addition, all prefabricated structures can be used as support structures, and dry splicing is performed on site, achieving the purpose of shortening the construction period of underground engineering. Through the design of the temporary load-bearing component and the main structure component, after the temporary load-bearing component completes the support function, it can be conveniently removed and used as a main structure component, or it can be directly used as a main structure after pouring concrete, to achieve the purpose of saving underground engineering construction cost and avoiding pollution to the underground environment.

[0020] In one embodiment, referring to the accompanying drawings Figure 9The vertical block enclosing purlin 202 comprises a base plate 2021 and a mounting portion 2022, wherein the base plate 2021 is used for being fixed on the diaphragm wall 1 or two enclosing purlins 201, and the vertical block enclosing purlin 202 can be disassembled or can be retained on the diaphragm wall 1 to form an integral body with concrete pouring during a concrete pouring process, preferably, the vertical block enclosing purlin 202 is disassembled for reuse; and the mounting portion 2022 is used for detachably mounting the support plate 4.

[0021] Reference is made to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 One end of the support plate 4 is detachably connected with the mounting portion 2022, and the other end is detachably connected with the stand column 302, thereby realizing the erection and disassembly of the temporary vertical support, and the support plate 4 is used for supporting the stand column 302 and the diaphragm wall 1, so as to avoid the partial collapse of the diaphragm wall 1 into the foundation pit.

[0022] In one embodiment, reference is made to the accompanying drawings Figure 4 The two ends of the base plate 2021 abut against two enclosing purlins 201 respectively, so that the base plate 2021 can position and limit the installation of the two enclosing purlins 201, thereby simplifying the positioning difficulty of the lower enclosing purlin 201 (the enclosing purlins 201 are installed from top to bottom), ensuring the parallelism of the multiple enclosing purlins 201, and greatly ensuring the support stability of the adjacent two enclosing purlins 201, improving the bearing stability of the upper enclosing purlin 201 and the support plate 4 in the erection process of the full dry splicing support structure, and comprehensively improving the safety performance.

[0023] In one embodiment, the base plate 2021 is connected with the diaphragm wall 1, i.e. the base plate 2021 is fixed or detachably fixed on the diaphragm wall 1, so that the gravity of the upper enclosing purlin 201 can not only be partially supported by the lower enclosing purlin 201, but also be partially transferred to the diaphragm wall 1, thereby further improving the support stability of the upper enclosing purlin 201 and the support plate 4. Preferably, the base plate 2021 and the diaphragm wall 1 are detachably matched, i.e. the base plate 2021 and the diaphragm wall 1 are provided with detachable lapping structures correspondingly, preferably, reference is made to the accompanying drawings Figure 9 and the accompanying drawings Figure 10The detachable overlapping structure includes a vertical purlin socket 20211 set on one side of the base plate 2021 and a vertical block purlin interface 1013 set on the ground-connected wall 1. The vertical purlin socket 20211 is inserted into the vertical block purlin interface 1013 to realize the detachable fixation of the base plate 2021 and the ground-connected wall 1.

[0024] Reference Attachment Figure 1 In one embodiment, the ground-connected wall 1 is formed by horizontally splicing a plurality of wall panels 101. Preferably, a fitting groove 1011 is provided on both sides of each wall panel 101. Two adjacent wall panels 101 fit together through the fitting groove 1011, thereby realizing longitudinal connection between the wall panels 101. Such a setting can simplify the installation difficulty of the ground-connected wall 1, reduce the difficulty of hoisting and inserting the ground-connected wall 1 into the ground, thereby simplifying the construction difficulty and improving the construction efficiency. Each of the wall panels 101 is longitudinally provided with a plurality of splicing interfaces 1012, and the splicing interfaces 1012 are used to install the purlin 201; refer to the attached Figure 1 , Attachment Figure 6 and attached Figure 10 The purlin 201 is provided with a plurality of splicing joints 2011 along the length direction, and the plurality of splicing joints 2011 are spliced ​​one by one with the splicing interfaces 1012 on the same horizontal line of each wall panel 101, so as to fix the purlin 201 to the ground-connected wall 1 and realize the lateral mutual fixation of the plurality of wall panels 101. The cooperation of the engaging groove 1011 and the purlin 201 realizes the lateral and longitudinal limitation of the plurality of wall panels 101, so as to form an integral ground-connected wall 1, thereby improving its supporting effect on the side of the foundation pit. The splicing joints 2011 and the splicing interfaces 1012 on the purlin 201 and the wall panel 101, while realizing the fixing of the purlin 201 to the ground-connected wall 1, realize the fixation of the plurality of wall panels 101 of the ground-connected wall 1, thereby achieving the effect of completing two purposes in one step.

[0025] In one embodiment, refer to the attached Figure 8 , one side of the support plate 4 is provided with a support groove 401, and the other side is provided with a clamping structure 402; Figure 1 , the longitudinal beam 301 or the surrounding purlin 201 is provided with a support slide 5, and the support slide groove 401 of the support plate 4 is rotatably engaged with the support slide 5; refer to the attached Figure 7 and attached Figure 12 The purlin 201 or the longitudinal beam 301 is provided with a lap groove 6, attached Figure 6 In the embodiment, the overlap groove 6 is provided on the purlin 201. Figure 7In the embodiment, the lap groove 6 is provided on the longitudinal beam 301, and a plurality of snap-fitting structures 7 are provided on the groove surface of the lap groove 6 at intervals along the length direction. The support plate 4 is provided with a side of the snap-fitting structure 402 which is overlapped on the lap groove 6, and the snap-fitting structure 402 of the support plate 4 is snapped with the snap-fitting structure 7. The snap-fitting structure 402 and the snap-fitting structure 7 can also adopt other snap-fitting devices such as pins and holes, buckles and slots, bolts and screw holes, etc., which are not specifically limited. Preferably, the snap-fitting structure 402 and the snap-fitting structure 7 adopt the combination of limiting grooves and limiting protrusions to improve the limiting effect. Preferably, a limiting groove is provided on the snap-fitting structure 402, and a limiting protrusion is provided on the snap-fitting structure 7. After the limiting protrusion is embedded in the limiting groove, the support plate 4 and the lap groove 6 are limitedly engaged. That is, when the support slide 5 is provided on the longitudinal beam 301 , the overlap groove 6 and the snap-fit ​​structure 7 are provided on the purlin 201 ; conversely, when the support slide 5 is provided on the purlin 201 , the overlap groove 6 and the snap-fit ​​structure 7 are provided on the longitudinal beam 301 .

[0026] In this embodiment, the installation of the support plate 4 to the longitudinal beam 301 and the surrounding purlin 201 is divided into two steps. The first step is to refer to the attached Figure 1 , Attachment Figure 2 and attached Figure 27 First, slide the support chute 401 into the support slideway 5 at a small angle; second, refer to the attached Figure 3 The upper middle part is used as the support plate of the horizontal plate surface 4, attached Figure 28 The clamping structure 402 end of the support plate 4 can be rotated downward with the supporting slide 401 as the center of the circle, so that the clamping structure 402 end of the support plate 4 is overlapped in the overlap groove 6, and the overlap groove 6 supports and limits the rotation of the end of the support plate 4. At the same time, the clamping structure 402 on the support plate 4 cooperates with the clamping matching structure 7 in the overlap groove 6 to realize the horizontal limitation of the support plate 4 in all directions, the cooperation between the support slide 401 and the support slide 5, the cooperation between the support plate 4 and the overlap groove 6, and the clamping structure 402 on the support plate 4 The three cooperations of the connection structure 402 and the snap-fit ​​structure 7 form a good support and limit for the support plate 4. When disassembling (the support plate 4 used as a horizontal plate is generally not disassembled), only the reverse operation is required. That is, the first step is to rotate the support plate 4 upward with the support groove 401 as the center of the circle, so that the support plate 4 and the overlap groove 6 are separated, and the snap-fit ​​structure 402 and the snap-fit ​​structure 7 are separated at the same time; the second step is to pull the support groove 401 out of the support slide 5 at a small angle. Since the support plate 4 always bears the downward force, it has a good downward force support effect after installation. Disassembly requires an upward force. Therefore, when disassembly is performed without external force, the fixation of the support plate 4 is stable and reliable, which can ensure safety.

[0027] In one embodiment, refer to the attached Figure 9The vertical block enclosing purlin 202 comprises a base plate 2021, a mounting portion 2022 and a limiting plate 2023; the mounting portion 2022 comprises a vertically arranged support slide 5, the limiting plate 2023 is arranged at the bottom of the support slide 5, and the limiting plate 2023 is used for limiting the longitudinal height of the support plate 4 as a temporary vertical support, the support slide groove 401 of the support plate 4 is rotationally engaged with the support slide 5; the vertical column 302 is provided with a vertical lap joint block 3021 on one side of the vertical block enclosing purlin 202, and the clamping structure 402 of the support plate 4 is lap-joint arranged on the vertical lap joint block 3021 on one side.

[0028] In the embodiment, the support plate 4 as a temporary vertical support and the mounting and dismounting steps of the support plate 4 as a horizontal plate surface are similar, specifically, the installation of the support plate 4 to the vertical block enclosing purlin 202 and the vertical column 302 is divided into two steps, in the first step, the support slide groove 401 is first slid into the vertically arranged support slide 5 at a small angle; in the second step, the end of the clamping structure 402 of the support plate 4 can be rotated inward with the support slide groove 401 as the center, so that the end of the clamping structure 402 of the support plate 4 is located above the vertical lap joint block 3021; in the third step, the support plate 4 is moved downward, so that one end of the support plate 4 abuts against the limiting plate 2023 and the other end abuts against the vertical lap joint block 3021, thereby realizing the vertical support and limiting of the support plate 4, and the arrangement of the limiting plate 2023 can make the support plate 4 be just located at the middle position of the two enclosing purlins 201, thereby optimizing the stress distribution of the temporary vertical support. When dismounting (the support plate 4 as a temporary vertical support needs to be dismounted), there are totally two steps, that is, in the first step, the support plate 4 is rotated outward with the support slide groove 401 as the center, so that the support plate 4 and the vertical lap joint block 3021 are separated; in the second step, the support slide groove 401 is pulled out from the support slide 5 at a small angle. In the embodiment, the dismounting steps of the support plate 4 as a temporary vertical support and the support plate 4 as a horizontal plate surface are basically consistent, which can reduce the learning cost of dismounting and improve the construction efficiency.

[0029] In one of the embodiments, reference is made to the accompanying drawings Figure 13 and the accompanying drawings Figure 15 The vertical column 302 is provided with a horizontal lap joint block 3022, and the two sides of the longitudinal beam 301 are lap-joint arranged on the opposite horizontal lap joint blocks 3022 of the two vertical columns 302, so as to simplify the cooperation of the longitudinal beam 301 and the vertical column 302 and improve the support stability of the two.

[0030] Reference is made to the accompanying drawings Figure 14 - the accompanying drawings Figure 29The application also provides a permanent and temporary dry splicing self-sensing support plate structure, which is part of a permanent and temporary integrated dry splicing support structure, comprising a surrounding purlin 201, a longitudinal beam 301, a support plate 4, and a self-sensing system 8, wherein the self-sensing system 8 is used to detect and feed back whether the support plate 4 used as a horizontal plate is installed in place when the support plate 4 is installed on the surrounding purlin 201 and the longitudinal beam 301, thereby ensuring that the support plate 4 is installed in place and ensuring that the support plate 4 has good structural force transmission and sufficient support strength, thereby ensuring the stability and safety of the whole.

[0031] One end of the support plate 4 is installed on the surrounding purlin 201, and the other end is installed on the longitudinal beam 301.

[0032] The self-sensing system 8 comprises a line docking structure and an indicating device, wherein the line docking structure is arranged on the support plate 4 and the surrounding purlin 201 and / or the longitudinal beam 301, that is, the line docking structure can be arranged on the support plate 4 and the surrounding purlin 201, or on the support plate 4 and the longitudinal beam 301, or on the support plate 4, the surrounding purlin 201, and the longitudinal beam 301. After the support plate 4 and the surrounding purlin 201 are installed in place and / or the support plate 4 and the longitudinal beam 301 are installed in place, the line docking structure is successfully docked, and the indicating device indicates that the docking is successful. That is, when the line docking structure is arranged on the support plate 4 and the surrounding purlin 201, it is used to dock the line docking structure successfully after the support plate 4 and the surrounding purlin 201 are installed in place, and the indicating device indicates that the docking is successful. When the line docking structure is arranged on the support plate 4 and the longitudinal beam 301, it is used to dock the line docking structure successfully after the support plate 4 and the longitudinal beam 301 are installed in place, and the indicating device indicates that the docking is successful. When the line docking structure is arranged on the support plate 4, the surrounding purlin 201, and the longitudinal beam 301, it is used to dock the line docking structure successfully after the support plate 4, the surrounding purlin 201, and the longitudinal beam 301 are installed in place, and the indicating device indicates that the docking is successful.

[0033] That is, the permanent and temporary dry splicing self-sensing support plate structure provided by the application can display whether the installation of the support plate 4 and the surrounding purlin 201 and / or the longitudinal beam 301 is in place after the installation of the support plate 4 is completed, and can fully monitor the stress state of the support plate 4 (if installed in place, the stress state is good, otherwise the stress state is poor), thereby ensuring that the structure has good force transmission. In addition, by using all prefabricated structures for the support structure and performing dry splicing without cast-in-place on site, the force system transmission of the whole support structure is clear, and the self-sensing system 8 can further ensure the clear force system transmission, thereby eliminating the uncertainty of the support plate 4 force transmission during construction and reducing the engineering risk. The structural difference and construction contingency caused by cast-in-place concrete are greatly reduced, thereby greatly reducing the safety risk. In addition, in the permanent and temporary integrated support plate 4, the dry splicing joint replaces the cast-in-place joint, and the assembly process replaces the cast-in-place concrete process, thereby solving the construction errors caused by construction quality and other factors and making the construction process more standardized and clear.

[0034] In one embodiment, referring to the accompanying drawings Figure 18 , the accompanying drawings Figure 19 , the accompanying drawings Figure 20 and the accompanying drawings Figure 22 , the line docking structure comprises two connectors 803 arranged on both sides of the enclosing purlin 201 or the longitudinal beam 301 and a power connector 805 arranged between the two connectors 803, the connectors 803 and the power connector 805 are arranged on the enclosing purlin 201 in the drawings, the power connector 805 and the two connectors 803 are connected in series through wires, and the line docking structure further comprises two contacts 804 arranged on both sides of the support plate 4 and a power contact 806 arranged between the two contacts 804, the power contact 806 is connected with a power line 807, the contacts 804 are connected with contact wires 808, the power line 807 and the two contact wires 808 are connected in parallel, the indicating device comprises a power supply 801 arranged on the power line 807 and an indicating lamp 802 arranged on the contact wire 808, wherein the power supply 801 preferably adopts a battery, and the power supply 801 can be arranged inside the end of the support plate 4, and the indicating lamp 802 preferably adopts an LED lamp, and the indicating lamp 802 protrudes from the upper surface of the support plate 4; after the support plate 4 and the enclosing purlin 201 or the longitudinal beam 301 are installed in place, the connectors 803 and the contacts 804 are in contact, the power connector 805 and the power contact 806 are in contact, and the two indicating lamps 802 are powered on and light up. In this embodiment, the two contacts 804 are arranged on both sides of the support plate 4, so that whether the two sides of the support plate 4 are installed in place can be detected at the same time, and the power connector 805 is arranged in the middle of the support plate 4, so that whether the middle of the support plate 4 is installed in place can be detected, at this time, the two sides and the middle of the support plate 4 need to be close to the corresponding positions of the enclosing purlin 201 or the longitudinal beam 301, so as to prove that the support plate 4 is tightly installed, in addition, two groups of indicating lamps 802 are arranged in this embodiment, and the two groups of indicating lamps 802 are connected in parallel with the power supply 801, so that whether one side of the support plate 4 is installed in place can be independently fed back, and it is convenient to realize the conversion from the installation of the support plate 4 not in place to the installation in place through fine adjustment.

[0035] Preferably, referring to the accompanying drawings Figure 23 , two connectors 803 are arranged on both sides of the longitudinal beam 301 and the enclosing purlin 201, and a power connector 805 is arranged between the two connectors 803, at this time, both ends of the support plate 4 are provided with two contacts 804 and a power contact 806 arranged between the two contacts 804, and the opposite contacts 804 and the power contact 806 are connected with each other through contact wires 808 and power wires 807, at this time, only when both ends of the support plate 4 are installed in place with the support plate 4 and the longitudinal beam 301, the two indicating lamps 802 will light up, and when one side of both ends of the support plate 4 is installed in place, the indicating lamp on the side will light up.

[0036] In another embodiment, referring to the accompanying drawings Figure 24The line docking structure includes two connectors 803 arranged on the surrounding purlin 201 or the longitudinal beam 301, the two connectors 803 are electrically connected through a wire, and the line docking structure also includes two contacts 804 arranged on the support plate 4, the two contacts 804 are electrically connected through a wire, the indicating device includes a power supply 801 and an indicating lamp 802 arranged on the wire; after the support plate 4 and the surrounding purlin 201 or the longitudinal beam 301 are installed in place, the connector 803 and the contact 804 are in contact, and the indicating lamp 802 is powered on and lights up. In the embodiment, one support plate 4 is monitored by the two contacts 804 as a monitoring point to monitor whether it is installed in place, and the indicating lamp 802 will light up only after the two contacts 804 are successfully disconnected from the corresponding connector 803, otherwise the indicating lamp 802 will not light up, which can simplify the structural complexity of the line docking structure and reduce the structural cost.

[0037] Reference is made to the accompanying drawings Figure 25 In one embodiment, the indicating device includes a power supply 801 arranged on the surrounding purlin 201 or the longitudinal beam 301 and an indicating lamp 802 arranged on each support plate 4; the line docking structure includes two connectors 803 arranged on the surrounding purlin 201 or the longitudinal beam 301, the two connectors 803 are connected with the power supply 801 through a wire, when a plurality of groups of support plates 4 are arranged on the support plate 4, the two connectors 803 are correspondingly arranged in a plurality of groups, and the plurality of groups of connectors 803 are electrically connected with the power supply 801, the line docking structure also includes two contacts 804 arranged on the support plate 4, the two contacts 804 are electrically connected through a wire, and the indicating lamp 802 is arranged on the wire; after the support plate 4 and the surrounding purlin 201 or the longitudinal beam 301 are installed in place, the connector 803 and the contact 804 are in contact, and the indicating lamp 802 is powered on and lights up. In the embodiment, one support plate 4 is monitored by the two contacts 804 as a monitoring point to monitor whether it is installed in place, and the indicating lamp 802 will light up only after the two contacts 804 are successfully disconnected from the corresponding connector 803, otherwise the indicating lamp 802 will not light up, which can simplify the structural complexity of the line docking structure and reduce the structural cost. Moreover, the positive and negative poles of the power supply 801 are respectively connected with the two connectors 803 of the plurality of groups of connectors 803, that is, the indicating lamps 802 of the plurality of support plates 4 are powered on through one power supply 801, which can further reduce the complexity and cost of the equipment.

[0038] In another embodiment, reference is made to the accompanying drawings Figure 26The line docking structure includes two joints 803 arranged on the surrounding purlin 201, the two joints 803 are electrically connected to each other through wires; it also includes two joints 803 arranged on the longitudinal beam 301, the two joints 803 are electrically connected to each other through wires; it also includes two wires arranged on the support plate 4, the two ends of the two wires respectively penetrate the two ends of the support plate 4 and are connected with contacts 804; the indicating device includes a power supply 801 and an indicating lamp 802 which are arranged in series on the wires; after the support plate 4 and the surrounding purlin 201 and the longitudinal beam 301 are installed in place, the joints 803 and the contacts 804 are in contact, and the indicating lamp 802 is powered on and lights up. In this embodiment, one support plate 4 is monitored as a monitoring point by four contacts 804 to monitor whether it is installed in place, and only when the support plate 4 and the surrounding purlin 201 and the longitudinal beam 301 are all installed in place, the indicating lamp 802 will light up, and the surrounding purlin 201 and the longitudinal beam 301 are respectively provided with two joints 803, and the two joints 803 are arranged on the two sides, so that whether the two sides of the support plate 4 and the two sides of the surrounding purlin 201 and the longitudinal beam 301 are installed in place can be detected.

[0039] In one of the embodiments, reference is made to the accompanying drawings of Figure 19 , the accompanying drawings of Figure 27 and the accompanying drawings of Figure 28 , the support plate 4 is provided with a contact pre-buried hole 403, the wire extends into the contact pre-buried hole 403, and the joint 803 is protrudingly arranged, preferably, the end of the protruding part of the joint 803 is made of metal material; the contact 804 is arranged in the contact pre-buried hole 403, the contact 804 includes a compressible part 8041 and a conductive part 8042 arranged in sequence, the outer side of the conductive part 8042 is covered with a protective layer 8043, when the joint 803 and the contact 804 are not docked, the conductive part 8042 is protrudingly arranged, at this time, the protective layer 8043 can avoid the protruding part of the conductive part 8042 being damaged during transportation, when the joint 803 and the contact 804 are docked, the joint 803 abuts against the conductive part 8042, the conductive part 8042 compresses the compressible part 8041 and moves into the contact pre-buried hole 403, so that the conductive part 8042 communicates with the wire, and then the communication of the joint 803, the contact 804 and the wire on the side of the contact 804 is realized. In this embodiment, by arranging the contact 804 into the compressible part 8041 and the conductive part 8042, as long as the joint 803 has enough moving stroke to compress the compressible part 8041 when the contact 804 and the joint 803 are aligned, the conductive part 8042 is connected with the wire, and then the accuracy of detection can be guaranteed.

[0040] In one of the embodiments, reference is made to the accompanying drawings of Figure 18The one side of the support plate 4 is provided with a support sliding groove 401, and the other side is provided with a clamping structure 402; the longitudinal beam 301 or the surrounding purlin 201 is provided with a support sliding way 5, the support sliding groove 401 of the support plate 4 is rotationally clamped with the support sliding way 5; the surrounding purlin 201 or the longitudinal beam 301 is provided with a lap joint groove 6, the groove surface of the lap joint groove 6 is provided with a plurality of clamping matching structures 7 at intervals along the length direction, the one side of the support plate 4 provided with the clamping structure 402 is arranged on the lap joint groove 6, and the clamping structure 402 of the support plate 4 is clamped with the clamping matching structure 7, the clamping structure 402 and the clamping matching structure 7 can also adopt other clamping devices such as pin and hole, buckle and slot, bolt and screw hole, and the specific limitation is not made, preferably, the clamping structure 402 and the clamping matching structure 7 adopt the cooperation of limiting grooves and limiting lugs to improve the limiting effect, preferably, the clamping structure 402 is provided with a limiting groove, and the clamping matching structure 7 is provided with a limiting lug, after the limiting lug is embedded into the limiting groove, the limiting clamping of the support plate 4 and the lap joint groove 6 is realized. That is, when the support sliding way 5 is arranged on the longitudinal beam 301, the lap joint groove 6 and the clamping matching structure 7 are arranged on the surrounding purlin 201, and vice versa, when the support sliding way 5 is arranged on the surrounding purlin 201, the lap joint groove 6 and the clamping matching structure 7 are arranged on the longitudinal beam 301. In the embodiment, since the support plate 4 has high positioning effect after cooperating with the lap joint groove 6 and the clamping matching structure 7, the self-sensing system 8 is preferably arranged on the one side of the support sliding groove 401 of the support plate 4 and the one side of the support sliding way 5. In the embodiment, the mounting structure of the support plate 4 greatly improves the force transmission performance of the support plate 4 node.

[0041] Preferably, referring to the accompanying drawings Figure 19 , the accompanying drawings Figure 20 , and the accompanying drawings Figure 21 , the support sliding way 5 comprises an arc-shaped sliding block 501, a lap joint step 502 arranged above the arc-shaped sliding block 501, and a limiting step 503 arranged below the arc-shaped sliding block 501, the depth of the lap joint step 502 is deeper than the depth of the limiting step 503, and the contact 803 is arranged on the vertical surface of the lap joint step 502; the support sliding groove 401 comprises an arc-shaped sliding groove 4011, a lap joint protrusion 4012 arranged above the arc-shaped sliding groove 4011, and a limiting protrusion 4013 arranged below the arc-shaped sliding groove 4011, the protruding length of the lap joint protrusion 4012 is longer than the protruding length of the limiting protrusion 4013, and the contact 804 is arranged on the vertical surface of the lap joint protrusion 4012; the opposite inner sides of the limiting protrusion 4013 and the lap joint protrusion 4012 are provided with a round corner; when the support plate 4 is installed, the support sliding groove 401 of the support plate 4 is inserted into the support sliding way 5 at a small angle, then the support sliding groove 401 is used as a fulcrum to rotate, and the other end of the support plate 4 is inserted into the lap joint groove 6. In the embodiment, the installation steps of the support plate 4 are divided into two steps, the first step, referring to the accompanying drawings Figure 27, first lap convex 4012 lap small angle on the water platform step surface of lap step 502, and make arc-shaped sliding groove 4011 and arc-shaped sliding block 501 corresponding; second step, reference attached Figure 28 , the clamping structure 402 end of the support plate 4 can be rotated downward with the support sliding groove 401 as the center, so that the clamping structure 402 end of the support plate 4 is lapped into the lapping groove 6, and the lapping groove 6 supports and rotates the limit of the end of the support plate 4, at the same time, the clamping structure 402 on the support plate 4 cooperates with the clamping matching structure 7 in the lapping groove 6, realizing the limit of the support plate 4 in horizontal direction, at the same time, the lap convex 4012 cooperates with the lap step 502, after installation, the line interface structure in the self-sensing system 8 is successfully interfaced, so that the installation can be immediately monitored, at the same time, the arc-shaped sliding groove 4011 cooperates with the arc-shaped sliding block 501, and the limiting convex 4013 abuts on the limiting step 503. The fillet on the opposite inner side of the limiting convex 4013 and the lap convex 4012 facilitates the rotation of the support plate 4, avoiding interference and jamming.

[0042] In one of the embodiments, reference attached Figure 19 , the horizontal plane of the lap convex 4012 is provided with a vertical through hole I 40121, reference attached Figure 20 and attached Figure 21 , the horizontal plane of the lap step 502 is provided with a vertical through hole II 5021, and the through hole II 5021 penetrates the limiting step 503; due to the structural deformation of the diaphragm wall 1 and the column 302 in the construction process and under the bearing action, if the actual distance between the diaphragm wall 1 and the column 302 is too narrow, the support plate 4 is difficult to rotate at one end of the longitudinal beam 301, at this time, the diaphragm wall 1 and the longitudinal beam 301 can be knocked or supported to smoothly construct the support plate 4; if the actual distance between the diaphragm wall 1 and the column 302 is too wide, the actual distance between the support plate 4 at one end of the surrounding purlin 201 and the surrounding purlin 201 is far, at this time, the correction hand lever 12 can be used for correction, specifically, in the process of installing the support plate 4 on the support sliding groove 5, reference attached Figure 29 , it also includes a correction hand lever 12, the correction hand lever 12 includes a lever body 1201 and a convex I 1202 and a convex II 1203 provided on the lever body 1201, the convex I 1202 is used for abutting the front side wall of the through hole I 40121, the convex II 1203 is used for abutting the rear side wall of the through hole II 5021, by swinging the lever body 1201, the through hole I 40121 and the through hole II 5021 are coaxial, at this time, the installation bolt fastener 11; after the support plate 4 is installed on the support sliding groove 5, reference attached Figure 18Also included are bolt fasteners 11 passing through the through hole I 40121 and the through hole II 50121 to fasten the support plate 4 and the support slide 5. In this embodiment, the support plate 4 is assembled and disassembled by the correction hand lever 12 and the bolt fasteners 11, so as to meet the repeated assembly and disassembly of the support plate 4 in the structure with large depth span.

[0043] In one of the embodiments, reference is made to the accompanying drawings Figure 29 The side of the surrounding purlin 201 and / or the longitudinal beam 301 is provided with a clamping part I 9, one side or both sides of the support plate 4 is provided with a clamping part II 404, and a locking piece 10 is further provided to detachably connect the clamping part I 9 and the clamping part II 404. In the embodiment provided with the bolt fastener 11, the locking piece 10 can be installed first to lock the relative position of the support plate 4 and the support slide 5 before the installation of the bolt fastener 11, thereby simplifying the installation of the bolt fastener 11. In the embodiment without the bolt fastener 11, the locking piece 10 can improve the fixing stability of the support plate 4 and the surrounding purlin 201 and / or the longitudinal beam 301. Preferably, the locking piece 10 includes a connecting rod 1001 and clamping matching parts 1002 provided at both ends of the connecting rod 1001, and the clamping matching parts 1002 and the clamping part I 9 and the clamping part II 404 are clamped and matched. The clamping matching parts 1002 and the clamping part I 9 and the clamping part II 404 can be clamped and matched by other clamping devices such as pin and hole, buckle and slot, bolt and screw hole, and the specific clamping device is not limited. Preferably, the clamping matching parts 1002 are limiting pins, and the clamping part I 9 and the clamping part II 404 are limiting holes, so as to simplify the installation difficulty of the two.

[0044] The application further provides a construction method of the permanent-temporary integrated full-dry splicing support structure, comprising a full-dry splicing support structure building process and a concrete pouring process, and the full-dry splicing support structure building process comprises the following steps: S11, two diaphragm walls 1 and a plurality of vertical columns 302 are vertically installed into a to-be-excavated soil base, the two diaphragm walls 1 are arranged in mirror image alignment, and the plurality of vertical columns 302 are transversely arranged between the two diaphragm walls 1; when the diaphragm wall 1 is a plurality of wall plates 101, the plurality of wall plates 101 are vertically installed into the to-be-excavated soil base in sequence, and when an adjacent wall plate 101 is installed, the adjacent embedded grooves 1011 are embedded to ensure that the two wall plates 101 are aligned and matched; S12, the soil base between the two diaphragm walls 1 is excavated to a set depth, and the height of the surrounding purlin 201 and the support plate 4 can be excavated; the top layer of surrounding purlin 201 is installed to the inner side of the diaphragm wall 1, and specifically, the plurality of splicing joints 2011 on the surrounding purlin 201 are one-to-one connected with the splicing interfaces 1012 on the wall plate 101, so that the surrounding purlin 201 is fixed on the diaphragm wall 1, and the wall plates 101 are fixed to each other; the top layer of longitudinal beam 301 is installed to the top end of the vertical column 302, and specifically, the lower end of the top layer of longitudinal beam 301 is provided with a plurality of sockets 3011 along the length direction, one socket 3011 is inserted into the top of one vertical column 302, the top layer of longitudinal beam 301 is matched with the vertical column 302, and a plurality of support plates 4 are installed between the top layer of surrounding purlin 201 and the top layer of longitudinal beam 301, preferably, the support plates 4 are installed only at the positions corresponding to the vertical columns 302, and at this time, a space is left between the adjacent two support plates 4, which is used for workers or equipment to continue to excavate downward at the bottom of the soil base and for the workers or equipment to enter the newly-excavated space; S13, the soil base between the two diaphragm walls 1 is continuously excavated to a set depth, and at this time, the excavation is to the position of the next surrounding purlin 201; the next layer of surrounding purlin 201 is installed to the inner side of the diaphragm wall 1, and the specific steps are the same as the installation steps of the top layer of surrounding purlin 201; the next layer of longitudinal beam 301 is installed to the vertical column 302, the two sides of the next layer of longitudinal beam 301 are provided with notches 3012, the notches 3012 are embedded into the vertical column 302, and the solid part on the side of the notch 3012 is lap-jointed on the transverse lap joint block 3022 to be fixed, and a plurality of support plates 4 are installed between the next layer of surrounding purlin 201 and the next layer of longitudinal beam 301, preferably, the support plates 4 are installed only at the positions corresponding to the vertical columns 302, and a space is left between the adjacent two support plates 4, which is used for workers or equipment to continue to excavate downward at the bottom of the soil base and for the workers or equipment to enter the newly-excavated space; a vertical block surrounding purlin 202 is installed between the two surrounding purlins 201, preferably, the vertical block surrounding purlin 202 is arranged at the position corresponding to the vertical column 302, at least one support plate 4 is vertically installed between the vertical block surrounding purlin 202 and the vertical column 302, and vertical support is provided between the two surrounding purlins 201; and S14, the step S13 is repeated to complete the building of the plurality of layers of surrounding purlins 201, longitudinal beams 301, vertical block surrounding purlins 202 and support plates 4.S15, the bottom layer of the excavation is set to the depth, that is, the bottom layer of the foundation pit, and the surrounding purlin 201, the longitudinal beam 301 and the support plate 4 can not be arranged; in other embodiments, after step S15, the surrounding purlin 201, the support plate 4 and the temporary vertical support can also be arranged at the bottom layer of the foundation pit.

[0045] In the construction process of the whole dry splicing support structure, the construction is carried out from top to bottom, and the support of the surrounding purlin 201 and the support plate 4 on one side is ensured by excavating a certain depth of the foundation pit, so as to ensure the support stability during the whole process of the foundation pit excavation. In addition, the arrangement of the vertical block surrounding purlin 202 and the support plate 4 as the temporary vertical support can further ensure the support stability in the longitudinal direction, improve the structural stability and safety. In addition, when the support plate 4 used for the horizontal plate surface is erected, the self-sensing system 8 can be used to detect whether the support plate 4 is installed in place, so as to ensure that all the support plates 4 are installed in place and have sufficient bearing capacity, thereby improving the support stability and safety of the equipment.

[0046] The concrete pouring process includes the following steps: S21, pouring concrete at the bottom of the foundation pit to form a concrete bottom surface; S22, pouring concrete on the inner side of the diaphragm wall 1 between the concrete bottom surface and the surrounding purlin 201 of the bottom layer, and pouring concrete on the outer side of the column 302 between the concrete bottom surface and the longitudinal beam 301 of the bottom layer; S23, the gap between the surrounding purlin 201 and the longitudinal beam 301 of the bottom layer is filled by the support plate 4 to form a horizontal plate surface, and concrete is poured on the horizontal plate surface to form a concrete secondary surface; S24, the support plate 4 between the vertical block surrounding purlin 202 and the column 302 above the concrete secondary surface is removed for standby, and preferably, the vertical block surrounding purlin 202 is also removed for standby, so as to realize repeated use, and when the vertical block surrounding purlin 202 is not removed, the support stability of the surrounding purlin 201 above the vertical block surrounding purlin 202 can be improved; S25, pouring concrete on the inner side of the diaphragm wall 1 between the concrete secondary surface and the surrounding purlin 201 above, and pouring concrete on the outer side of the column 302 between the concrete secondary surface and the longitudinal beam 301 above; S26, the gap between the surrounding purlin 201 and the longitudinal beam 301 above the concrete secondary surface is filled by the standby support plate 4 and the reserved support plate 4, the standby support plate 4 is the support plate 4 removed as the temporary vertical support below, and when the standby support plate 4 is not enough to fill the gap at this horizontal position, the reserved support plate 4 outside the foundation pit needs to be hoisted to fill the gap, to form a horizontal plate surface, and concrete is poured on the horizontal plate surface to form a concrete secondary surface; S27, repeating steps S24-S26 to complete the concrete pouring.

[0047] In the concrete pouring process, from bottom to top, the concrete side layer and the concrete column are poured upward in turn, while the concrete surface is parallel and spaced upward. In the pouring process from bottom to top, the support plate 4 as a temporary longitudinal support can be used to fill the upper space, which can greatly improve the construction efficiency. When the support plate 4 for making the horizontal plate surface is erected, the installation of the support plate 4 can be detected by the self-sensing system 8 to ensure that all the support plates 4 are installed in place and have sufficient bearing capacity, thereby improving the support stability and safety of the equipment.

[0048] The above is only an embodiment of the present application and does not limit the present application. Any person skilled in the art can make many possible changes, modifications or modifications to the technical solutions of the present application without departing from the scope of the technical solutions of the present application, and the equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application shall fall within the scope of protection of the technical solutions of the present application.

Claims

1. A permanent-temporary integrated full dry splicing support structure, characterized in that, The application relates to a diaphragm wall (1), a surrounding purlin assembly (2), a longitudinal beam and column assembly (3) and a plurality of support plates (4), wherein the diaphragm wall (1) and the surrounding purlin assembly (2) are symmetrically provided with two groups, and the longitudinal beam and column assembly (3) and the plurality of support plates (4) are arranged between the two groups of diaphragm walls (1). The surrounding purlin assembly (2) comprises at least two surrounding purlins (201) arranged from top to bottom, and a plurality of vertical block surrounding purlins (202) are horizontally and spacedly arranged between every two surrounding purlins (201). The longitudinal beam and column assembly (3) comprises at least two longitudinal beams (301) arranged from top to bottom, and further comprises a plurality of columns (302) connecting the longitudinal beams (301), wherein the plurality of columns (302) are spacedly arranged along the length direction of the surrounding purlin (201). The plurality of vertical block surrounding purlins (202) and the plurality of columns (302) correspond to each other in the length direction of the surrounding purlin (201). The support plate (4) is used for forming a horizontal plate surface between the surrounding purlin (201) and the longitudinal beam (301) during plane pouring of concrete, and is further used for forming a temporary vertical support between the vertical block surrounding purlin (202) and the column (302) during construction. The vertical block surrounding purlin (202) comprises a base plate (2021) and a mounting portion (2022). One end of the support plate (4) is detachably connected with the mounting portion (2022), and the other end is detachably connected with the column (302). The two ends of the base plate (2021) respectively abut against two surrounding purlins (201). The base plate (2021) is connected with the diaphragm wall (1). One side of the support plate (4) is provided with a supporting sliding groove (401), and the other side is provided with a clamping structure (402). The longitudinal beam (301) or the surrounding purlin (201) is provided with a supporting sliding groove (5), and the supporting sliding groove (401) of the support plate (4) is rotationally clamped with the supporting sliding groove (5). The surrounding purlin (201) or the longitudinal beam (301) is provided with a lap joint groove (6), and the groove surface of the lap joint groove (6) is spacedly provided with a plurality of clamping matching structures (7) along the length direction, one side of the support plate (4) provided with the clamping structure (402) is arranged on the lap joint groove (6), and the clamping structure (402) of the support plate (4) is clamped with the clamping matching structure (7). The vertical block surrounding purlin (202) further comprises a limiting plate (2023), the mounting portion (2022) comprises a vertically-arranged supporting sliding groove (5), the limiting plate (2023) is arranged at the bottom of the supporting sliding groove (5), the limiting plate (2023) is used for limiting the longitudinal height of the support plate (4) as a temporary vertical support, and the supporting sliding groove (401) of the support plate (4) is rotationally clamped with the supporting sliding groove (5). The column (302) is provided with a vertical lap block (3021) on the side facing the vertical block surrounding purlin (202), and one side of the clamping structure (402) of the support plate (4) is clamped on the vertical lap block (3021).

2. The permanent temporary integrated dry fit support structure as claimed in claim 1, wherein, The diaphragm wall (1) is formed by transversely splicing a plurality of wall plates (101), and each wall plate (101) is longitudinally provided with a plurality of splicing interfaces (1012); The surrounding purlin (201) is provided with a plurality of splicing joints (2011) along the length direction, and the plurality of splicing joints (2011) are one-to-one correspondingly spliced with the splicing interfaces (1012) on the same horizontal line of each wall plate (101), so as to realize the fixation of the surrounding purlin (201) on the diaphragm wall (1) and the mutual fixation of the plurality of wall plates (101).

3. The permanent and temporary integrated dry-jointed support structure according to claim 1 is characterized in that When the support plate (4) is installed, the support sliding groove (401) of the support plate (4) is inserted into the support sliding groove (5) at a small angle, and then the support sliding groove (401) is used as a fulcrum to rotate, and the other end of the support plate (4) is inserted into the lap joint groove (6) or the vertical lap joint block (3021).

4. The permanent temporary integrated dry fit support structure according to any one of claims 1-3, wherein, The vertical column (302) is provided with a horizontal lap joint block (3022), and the two sides of the vertical beam (301) are lap-jointedly arranged on the opposite horizontal lap joint blocks (3022) of the two vertical columns (302).

5. A construction method of the permanent and temporary integrated full dry splicing support structure according to any one of claims 1 to 4, characterized in that, The construction process of the full-dry splicing support structure and the concrete pouring process are included, and the construction process of the full-dry splicing support structure includes the following steps: S11, two diaphragm walls (1) and a plurality of vertical columns (302) are vertically installed into the soil foundation to be excavated; S12, excavate the soil foundation between the two diaphragm walls (1) to a set depth, install the top layer of surrounding purlin (201) to the inner side of the diaphragm wall (1), install the top layer of vertical beam (301) to the top end of the vertical column (302), and install a plurality of support plates (4) between the top layer of surrounding purlin (201) and the top layer of vertical beam (301), and leave a gap between the adjacent two support plates (4); S13, continue to excavate the soil foundation between the two diaphragm walls (1) to a set depth, install the next layer of surrounding purlin (201) to the inner side of the diaphragm wall (1), install the next layer of vertical beam (301) on the vertical column (302), and install a plurality of support plates (4) between the next layer of surrounding purlin (201) and the next layer of vertical beam (301), and leave a gap between the adjacent two support plates (4); A vertical block surrounding purlin (202) is installed between the two surrounding purlins (201), and at least one support plate (4) is vertically installed between the vertical block surrounding purlin (202) and the vertical column (302); S14, repeat step S13 to complete the construction of a plurality of layers of surrounding purlins (201), vertical beams (301), vertical block surrounding purlins (202) and support plates (4); S15, excavate to a set depth below the bottom layer of surrounding purlin (201), vertical beam (301) and support plate (4); The concrete pouring process includes the following steps: S21, pour concrete at the bottom of the foundation pit to form a concrete bottom surface; S22, pour concrete between the concrete bottom surface and the inner side of the diaphragm wall (1) of the bottom layer of surrounding purlin (201), and pour concrete between the concrete bottom surface and the outer side of the vertical column (302) of the bottom layer of vertical beam (301). S23, the interval between the bottommost enclosing purlin (201) and the longitudinal beam (301) is filled by the support plate (4) to form a horizontal plate surface, and the concrete is poured on the horizontal plate surface to form a concrete secondary surface; S24, the support plate (4) between the vertical block enclosing purlin (202) above the concrete secondary surface and the column (302) is removed for standby; S25, the concrete side secondary layer is poured in the inner side of the diaphragm wall (1) between the concrete secondary surface and the enclosing purlin (201) above, and the concrete column secondary layer is poured on the outer side of the column (302) between the concrete secondary surface and the longitudinal beam (301) above; S26, the interval between the enclosing purlin (201) above the concrete secondary surface and the longitudinal beam (301) is filled by the standby support plate (4) and the reserved support plate (4) to form a horizontal plate surface, and the concrete is poured on the horizontal plate surface to form a concrete secondary surface; S27, steps S24-S26 are repeated to complete the concrete pouring.

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