Prefabricated full-recovery rectangular working well support structure

Abstract

This invention discloses a prefabricated, fully recyclable rectangular working well support structure, comprising four column structures located at the four corners of the rectangular working well and four corresponding wall panel fastening assemblies. Each wall panel fastening assembly includes multiple wall panel structures, multiple fastening structures, and reinforcing steel components. The multiple wall panel structures are arranged longitudinally and stacked, with each wall panel structure abutting against two corresponding column structures. The multiple fastening structures are located on the corresponding wall panel structures, and each fastening structure forms an insertion groove and a limiting groove. The insertion groove is longitudinally continuous with its opening facing away from the wall panel structure, and the limiting groove is transversely continuous with its opening facing the well opening. The reinforcing steel components include longitudinal reinforcing steel bars passing through the multiple insertion grooves and multiple transverse reinforcing steel bars respectively engaging with the corresponding limiting grooves. Each transverse reinforcing steel bar can cross the opening of the insertion groove to press against the longitudinal reinforcing steel bar within the insertion groove. Multiple wall panel structures are assembled by interlocking the transverse and longitudinal reinforcing steel bars, resulting in efficient assembly and disassembly.

Description

Technical Field

[0001] This invention relates to the field of working well support technology, and in particular to a prefabricated, fully recoverable rectangular working well support structure. Background Technology

[0002] In the construction of tunnels or subways in municipal engineering projects, or in the construction of water supply and drainage projects, oil wells, and mines, it is usually necessary to excavate working shafts to a certain depth underground. To prevent soil collapse, a working shaft support structure needs to be installed inside the working shaft. The existing working shaft support structure mainly consists of columns, lintels, internal bracing, and steel wall panels. Specifically, columns are driven into the four corners of a rectangular working shaft, and multiple lintels connect adjacent columns. Multiple lintels are arranged at intervals along the vertical direction between any two adjacent columns, and the adjacent lintels are then tightened by internal bracing to form a support frame. Multiple steel wall panels are connected to the two adjacent lintels above and below by bolted connections, thereby pressing the wall of the rectangular working shaft with multiple layers of steel wall panels. However, the setting of multiple bolted connections results in high installation accuracy requirements for the steel wall panels. At the same time, frequent tightening of bolts is required during installation and disassembly, leading to low efficiency in the assembly and disassembly of the working shaft support and affecting the construction progress. Summary of the Invention

[0003] The main objective of this invention is to propose a prefabricated, fully recyclable rectangular working well support structure, which aims to solve the problem of low assembly and disassembly efficiency in existing rectangular working well support systems that connect multiple steel wall panels to the waist beam via bolted connections.

[0004] To achieve the above objectives, the prefabricated fully recoverable rectangular working well support structure proposed in this invention includes four column structures and four wall panel connecting assemblies. The four column structures are distributed at the four corners of the rectangular working well, and each wall panel connecting assembly is disposed between two adjacent column structures to fit tightly against the corresponding well wall of the rectangular working well. Each wall panel connecting assembly includes:

[0005] Multiple wall panel structures are stacked longitudinally, and the two ends of each wall panel structure abut against the corresponding two column structures.

[0006] Multiple fastening structures are respectively disposed on corresponding wall panel structures. Each fastening structure has an insertion groove and a limiting groove. The insertion groove is longitudinally continuous with its opening facing away from the wall panel structure. The multiple insertion grooves are arranged longitudinally opposite to each other to form an insertion channel. The limiting groove is transversely continuous with its opening facing the wellhead of the rectangular working well, and the limiting groove is located on the side of the insertion groove away from the wall panel structure.

[0007] The reinforcing bar assembly includes longitudinal reinforcing bars and multiple transverse reinforcing bars. The longitudinal reinforcing bars are inserted longitudinally through the insertion channel, and the multiple transverse reinforcing bars are respectively snapped through the corresponding limiting grooves. Each transverse reinforcing bar can cross the opening of the insertion groove to press against the longitudinal reinforcing bar inside the insertion groove.

[0008] Optionally, the longitudinal reinforcing bars and the insertion slots correspond one-to-one to form longitudinal insertion groups, and multiple longitudinal insertion groups are arranged at intervals along the transverse direction.

[0009] Optionally, each of the fastening structures includes multiple longitudinal insertion portions and multiple transverse limiting portions. Multiple insertion slots arranged in the transverse direction are respectively formed on the corresponding longitudinal insertion portions. Multiple limiting slots are arranged in a lateral alignment and are respectively formed on the multiple transverse limiting portions.

[0010] Each of the wall panel structures includes multiple wall panel units spliced ​​together along the transverse first and last pieces. Each wall panel unit is connected to at least one of the longitudinal insertion parts and at least one of the transverse limiting parts in the corresponding fastening structures. The wall panel unit at the side end abuts against the corresponding column structure.

[0011] Optionally, each of the wall panel units is connected to a corresponding plurality of the longitudinal insertion portions;

[0012] The plurality of wall panel structures include adjacent first wall panel structures and second wall panel structures. The plurality of wall panel units in the first wall panel structure include a plurality of first wall panel units. The plurality of wall panel units in the second wall panel structure include a plurality of second wall panel units. The plurality of first wall panel units and the plurality of second wall panel units are staggered so that one first wall panel unit spans and overlaps with two corresponding second wall panel units. The plurality of longitudinal insertion portions on the first wall panel unit are respectively provided with corresponding longitudinal insertion portions on two second wall panel units.

[0013] Optionally, a misalignment gap is formed between the plurality of first wall panel units and / or the plurality of second wall panel units and the corresponding column structure, and the plurality of wall panel units in the first wall panel structure and / or the second wall panel structure further include at least one adjustment plate unit, the at least one adjustment unit being correspondingly disposed in the misalignment gap.

[0014] Optionally, the wall panel unit includes a wall panel body and a stiffening rib structure. The stiffening rib structure includes a plurality of transverse stiffening ribs and a plurality of longitudinal stiffening ribs. The plurality of transverse stiffening ribs are spaced apart along the longitudinal direction, and the plurality of longitudinal stiffening ribs are spaced apart along the transverse direction.

[0015] The longitudinal insertion portion and the transverse limiting portion on the wall panel unit are connected to the wall panel body.

[0016] Optionally, the plurality of transverse stiffening ribs include two transverse low stiffening ribs, which are respectively disposed on both sides of the longitudinal direction of the wall panel body and are flush with the two end faces of the longitudinal direction of the wall panel body; and / or,

[0017] Two of the longitudinal stiffening ribs are respectively disposed on both sides of the wall panel body in the transverse direction, and are respectively flush with the two transverse end faces of the wall panel body; and / or,

[0018] The fastening structure includes a longitudinally extending insert stiffening rib, the insert groove being formed in the insert stiffening rib, and a plurality of transverse stiffening ribs including transverse high stiffening ribs. The transverse high stiffening ribs are arranged transversely in the middle of the wall panel body, and the transverse high stiffening ribs have relief grooves corresponding to the insert stiffening ribs. The relief grooves are used to allow the insert stiffening ribs to fit and pass through. The transverse high stiffening ribs are welded to the insert stiffening ribs.

[0019] Optionally, each of the column structures includes a column body and two reinforcing plate structures. The two reinforcing plate structures are fixed on adjacent sides of the column body. Each of the reinforcing plate structures is provided with a reinforcing limiting part. A reinforcing limiting groove is formed on the reinforcing limiting part. The reinforcing limiting groove is transversely connected and the groove opening faces the longitudinal direction. Multiple reinforcing limiting grooves are provided corresponding to multiple transverse reinforcing bars.

[0020] The two ends of the plurality of transverse steel bars pass through the corresponding reinforcing limiting grooves and are connected to the corresponding column bodies;

[0021] The two ends of each of the wall panel structures in the lateral direction respectively abut against the side ends of the two corresponding reinforcing plate structures.

[0022] Optionally, the transverse reinforcing bars and the corresponding limiting grooves are arranged in a one-to-one correspondence to form transverse limiting groups. On a wall panel structure, multiple transverse limiting groups are arranged at intervals along the longitudinal direction.

[0023] Optionally, the fastening structure includes a plug-in stiffening rib and a limiting ear plate. The plug-in stiffening rib extends longitudinally and is disposed on the wall panel structure. The plug-in groove is formed on the plug-in stiffening rib. The limiting ear plate is formed on the end face of the plug-in stiffening rib facing away from the wall panel structure. The limiting groove is formed on the limiting ear plate.

[0024] In the technical solution provided by this invention, the fastening structure is correspondingly disposed on multiple wall panel structures, and each fastening structure has a longitudinally penetrating insertion groove and a transversely penetrating limiting groove. The multiple insertion grooves are longitudinally aligned to form an insertion channel. The longitudinal reinforcing bars are then inserted through the insertion channel to longitudinally stack and connect multiple layers of wall panel structures. Simultaneously, multiple transverse reinforcing bars are respectively engaged and inserted into multiple limiting grooves. On one hand, the fastening structure presses the multiple wall panel structures against the sidewall of the rectangular working well; on the other hand, since the transverse reinforcing bars can cross the opening of the insertion groove, the longitudinal reinforcing bars can be pressed and limited within the insertion groove. It should be noted that each wall panel structure is associated with the well of the rectangular working well. The walls are tightly fitted together, and the static friction generated between them is sufficient to overcome the weight of the wall panel structure itself. Therefore, there is no risk of the wall panel structure sliding down. In summary, in this technical solution, the longitudinal steel bars and multiple transverse steel bars are interlaced to connect multiple wall panel structures, thereby ensuring the overall structural stability of the wall panel connection assembly and its connection with the corresponding column structure. This replaces the traditional bolt connection method, enabling efficient installation and disassembly of the prefabricated fully recyclable rectangular working well support structure and accelerating the construction progress. Moreover, since each wall panel structure has corresponding transverse steel bars, internal bracing is not required to ensure the overall strength of the wall panel connection assembly, thereby obtaining a larger construction space and further accelerating the construction progress. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 A schematic plan view of an embodiment of the prefabricated fully recoverable rectangular working well support structure provided by the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram showing the position and structure of the prefabricated, fully recoverable rectangular working well support structure and the jacking pipe.

[0028] Figure 3 for Figure 1 A schematic diagram of the splicing structure of two wall panel units in the longitudinal direction;

[0029] Figure 4 for Figure 3 A front view of the wall panel unit in the diagram;

[0030] Figure 5 for Figure 4 A top sectional view of the assembly of wall panel units and steel reinforcement components;

[0031] Figure 6 for Figure 4 A side sectional view of the wall panel unit and the steel reinforcement assembly in the middle;

[0032] Figure 7 for Figure 4 A schematic diagram of the transverse low stiffening ribs in the structure;

[0033] Figure 8 for Figure 4 A schematic diagram of the transverse high stiffening ribs in the middle;

[0034] Figure 9 for Figure 6 A schematic diagram of the limiting ear plate in the middle;

[0035] Figure 10 for Figure 1 A top view of the column structure.

[0036] Explanation of icon numbers:

[0037]

[0038] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0041] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0042] In the construction of tunnels or subways in municipal engineering projects, or in the construction of water supply and drainage projects, oil wells, and mines, it is usually necessary to excavate working shafts to a certain depth underground. To prevent soil collapse, a working shaft support structure needs to be installed inside the working shaft. The existing working shaft support structure mainly consists of columns, lintels, internal bracing, and steel wall panels. Specifically, columns are driven into the four corners of a rectangular working shaft, and multiple lintels connect adjacent columns. Multiple lintels are arranged at intervals along the vertical direction between any two adjacent columns, and the adjacent lintels are then tightened by internal bracing to form a support frame. Multiple steel wall panels are connected to the two adjacent lintels above and below by bolted connections, thereby pressing the wall of the rectangular working shaft with multiple layers of steel wall panels. However, the setting of multiple bolted connections results in high installation accuracy requirements for the steel wall panels. At the same time, frequent tightening of bolts is required during installation and disassembly, leading to low efficiency in the assembly and disassembly of the working shaft support and affecting the construction progress.

[0043] Based on the aforementioned existing technical background, there is an urgent need in this field for a technical solution that can both meet the support stiffness requirements and replace the threaded connection structure between the steel wall panel and the waist beam.

[0044] In view of this, the present invention proposes a prefabricated, fully recyclable rectangular working well support structure, aiming to solve the problem of low assembly and disassembly efficiency in existing rectangular working well support schemes that connect multiple steel wall panels to the waist beam via bolted connections. Figures 1 to 10 This is a schematic diagram of an embodiment of the prefabricated fully recoverable rectangular working well support structure provided by the present invention.

[0045] Please see Figures 1 to 6The prefabricated fully recyclable rectangular working well support structure 1000 includes four column structures 200 and four wall panel fastening assemblies. The four column structures 200 are distributed at the four corners of the rectangular working well. Each wall panel connecting assembly 100 is disposed between two adjacent column structures 200 to fit tightly against the corresponding well wall of the rectangular working well. Each wall panel fastening assembly includes multiple wall panel structures 1, multiple fastening structures 2, and steel reinforcement assemblies 3. The multiple wall panel structures 1 are stacked longitudinally, and the two ends of each wall panel structure 1 abut against the two corresponding column structures 200. The multiple fastening structures 2 are respectively disposed on the corresponding wall panel structures 1, and each fastening structure 2 forms an insertion groove 221a and a limiting groove 211a. The insertion slot 221a is longitudinally continuous and its opening faces away from the wall panel structure 1. Multiple insertion slots 221a are arranged opposite each other longitudinally to form an insertion channel 221b. The limiting slot 211a is transversely continuous and its opening faces the wellhead of the rectangular working well. The limiting slot 211a is located on the side of the insertion slot 221a away from the wall panel structure 1. The reinforcing steel assembly 3 includes longitudinal reinforcing steel 32 and multiple transverse reinforcing steel 31. The longitudinal reinforcing steel 32 is longitudinally inserted into the insertion channel 221b. The multiple transverse reinforcing steel 31 are transversely engaged and inserted into the corresponding limiting slots 211a. Each transverse reinforcing steel 31 can cross the opening of the insertion slot 221a to press against the longitudinal reinforcing steel 32 inside the insertion slot 221a.

[0046] In the technical solution provided by this invention, the fastening structure 2 is correspondingly disposed on multiple wall panel structures 1, and each fastening structure 2 is provided with a longitudinally penetrating insertion groove 221a and a transversely penetrating limiting groove 211a. Multiple insertion grooves 221a are longitudinally aligned to form an insertion channel 221b. The longitudinal reinforcing bars 32 are then passed through the insertion channel 221b to longitudinally stack and connect multiple layers of wall panel structures 1. Simultaneously, multiple transverse reinforcing bars 31 are respectively engaged and passed through multiple limiting grooves 211a. On the one hand, the fastening structure 2 presses multiple wall panel structures 1 against the sidewall of the rectangular working well. On the other hand, since the limiting groove 211a is located on the side of the insertion groove 221a away from the wall panel structure 1, the transverse reinforcing bars 31 can cross the opening of the insertion groove 221a to tightly restrain and limit the longitudinal reinforcing bars 32 within the insertion groove 221a. 21a. It should be noted that each wall panel structure 1 is tightly fitted to the wall of the rectangular working well, and the static friction generated between them is sufficient to overcome the weight of the wall panel structure 1 itself. Therefore, there is no risk of the wall panel structure 1 sliding down. In summary, in this technical solution, by interlacing the longitudinal steel bars 32 with multiple transverse steel bars 31 to connect multiple wall panel structures 1, the overall structural stability of the wall panel connection assembly 100 and its connection with the corresponding column structure 200 is ensured, replacing the traditional bolt connection method. This achieves efficient installation and disassembly of the prefabricated fully recyclable rectangular working well support structure 1000, accelerating the construction progress. Moreover, since each wall panel structure 1 corresponds to the transverse steel bars 31, the overall strength of the wall panel connection assembly 100 can be guaranteed without internal bracing, thereby obtaining a larger construction space and further accelerating the construction progress.

[0047] It should be noted that, firstly, the prefabricated fully recyclable rectangular working well support structure 1000 provided by this invention is constructed using a reverse construction method. That is, firstly, the four column structures 200 are driven into the ground at designated positions, and then the earthwork is excavated layer by layer based on the height of the wall panel structure 1. After each layer of earthwork is excavated, a layer of support is constructed. During the construction of each layer of support, the wall panel structure 1 is first attached to the corresponding side wall of the rectangular working well. After the longitudinal steel bars 32 are inserted into the insertion slots 221a of the fastening structure 2, the transverse steel bars 31 are positioned in the limiting slots 211a of the fastening structure 2, and then the transverse steel bars 31 are connected to the opposite side wall. The two column structures 200 are used to press the wall panel structure 1 to the corresponding side wall of the rectangular working well, thus completing the installation of one layer of the support. During the installation of the next layer of support, after the wall panel structure 1 is attached to the corresponding side wall of the rectangular working well, the longitudinal steel bar 32 is simply inserted downwards to be inserted into the limiting groove 211a of the fastening structure 2 of the next layer. It is worth mentioning that in the construction of the first layer of support, since there is only one layer of wall panel structure 1, the longitudinal steel bar 32 may not be inserted. When the second layer of support is constructed, the longitudinal steel bar 32 is inserted to connect the two layers of wall panel structure 1.

[0048] Secondly, due to the restriction of the relative well wall of the rectangular working well, the transverse steel bar 31 cannot make a transverse insertion action, but can only make a longitudinal snap-fit ​​action. The groove of the limiting groove 211a faces the well opening of the rectangular working well, so that the transverse steel bar 31 can be fitted and snapped in longitudinally. At the same time, before backfilling each layer of soil, the bottommost wall panel structure 1 can be passively separated from the transverse steel bar 31 and the longitudinal steel bar 32 in the longitudinal direction towards the bottom of the working well, so as to facilitate dismantling.

[0049] Third, the rectangular working shaft is not only suitable for the construction of pipe jacking 2000 or underground tunnels, but can also be used as a mine and oil well, etc. The embodiments of the present invention do not limit its application;

[0050] Fourth, there are various ways to connect the transverse steel bar 31 to the column structure 200, but all of them should be detachable to facilitate the prefabricated full recycling. In a specific embodiment, the transverse steel bar 31 is connected to the corresponding column structure 200 through anchor bolts 230.

[0051] Fifth, both the fastening structure and the reinforcing steel assembly are located in the direction away from the wall of the rectangular working well in the wall panel structure.

[0052] Specifically, since there may be a certain fit error between a single insertion slot 221a and the longitudinal reinforcing bar 32, this may cause a slight deflection error in the wall panel structure 1 along the vertical axis direction of the transverse reinforcing bar 31 and the longitudinal reinforcing bar 32. This will result in multiple wall panel structures 1 not being able to stack and abut accurately. Based on this, in this embodiment, the longitudinal reinforcing bars 32 and the insertion slots 221a are arranged in a one-to-one correspondence to form longitudinal insertion groups, and multiple longitudinal insertion groups are arranged at intervals along the transverse direction. By arranging multiple longitudinal insertion groups at transverse intervals, the fit error existing in a single longitudinal insertion group can be eliminated, effectively preventing the wall panel structure 1 from deflecting.

[0053] The wall panel structure 1 can be a single piece of panel or a panel assembled from multiple unit panels. Further, in this specific embodiment, each fastening structure 2 includes multiple longitudinal insertion portions 22 and multiple transverse limiting portions 21. Multiple insertion slots 221a arranged transversely are formed on corresponding longitudinal insertion portions 22. Multiple limiting slots 211a are arranged transversely in alignment and are respectively formed on multiple transverse limiting portions 21. Each wall panel structure 1 includes multiple wall panel units 11 assembled end-to-end in the transverse direction. Each wall panel unit 11 is connected to at least one longitudinal insertion portion 22 and at least one transverse limiting portion 21 in each corresponding fastening structure 2. The wall panel unit 11 at the side end abuts against the corresponding column structure 200. By configuring the wall panel structure 1 as a form composed of multiple wall panel units 11 assembled end-to-end, it can adapt to working wells of different sizes and specifications, and effectively improves the recycling and reuse rate of assembly components.

[0054] It should be noted that with the determination of the working well dimensions, the positions of the multiple longitudinal insertion groups are also relatively determined, that is, the target positions of the multiple longitudinal reinforcing bars 32 are relatively determined. Regardless of whether the multiple wall panel units 11 in two adjacent wall panel structures 1 are arranged in a aligned or staggered manner, the insertion slots 221a in the fastening structure 2 ultimately provided on the wall panel structure 1 must form part of the corresponding insertion channel 221b. That is, the wall panel unit 11 is connected in series with at least one longitudinal reinforcing bar 32. However, in the case of aligned arrangement, two adjacent wall panel units 11 arranged longitudinally form a longitudinal wall panel group, while there is a lack of connection between two transversely adjacent longitudinal wall panel groups, resulting in a reduction in the overall stiffness of the multiple wall panel structures 1. Based on this, please refer to... Figure 1In this embodiment, each of the wall panel units 11 is connected to a plurality of corresponding longitudinal insertion portions 22; the plurality of wall panel structures 1 include adjacent first wall panel structures 1 and second wall panel structures 1, the plurality of wall panel units 11 of the first wall panel structure 1 includes a plurality of first wall panel units 11a, the plurality of wall panel units 11 of the second wall panel structure 1 includes a plurality of second wall panel units 11b, the plurality of first wall panel units 11a and the plurality of second wall panel units 11b are staggered so that one first wall panel unit 11a spans and overlaps to two corresponding second wall panel units 11b, and the plurality of longitudinal insertion portions 22 on the first wall panel unit 11a are respectively provided corresponding to a portion of the longitudinal insertion portions 22 on two second wall panel units 11b. By staggering the arrangement of multiple first wall panel units 11a and multiple second wall panel units 11b, one first wall panel unit 11a can be spanned and overlapped to two corresponding second wall panel units 11b. Simultaneously, since multiple longitudinal insertion portions 22 on the first wall panel unit 11a correspond to portions of longitudinal insertion portions 22 on two second wall panel units 11b, one first wall panel unit 11a can be connected to two second wall panel units 11b via multiple transverse reinforcing bars 31, thereby enhancing the overall rigidity and stability of the structure. It should be noted that the first wall panel unit 11a and the second wall panel unit 11b have the same dimensions.

[0055] It is easy to understand that when multiple wall panel units 11 in two adjacent wall panel structures 1 are arranged in a staggered manner, it may cause a misalignment gap between the first wall panel unit 11a and / or the second wall panel unit 11b at the lateral end and the column structure 200. A filling portion can be provided on the column structure 200 to fill the misalignment gap; however, this results in a more complex shape for the column structure 200, making it difficult to drive into the ground. Therefore, in this specific embodiment, multiple first wall panel units 11a and / or multiple second wall panel units 11b form a misalignment gap with the corresponding column structure 200. The multiple wall panel units 11 in the first wall panel structure 1 and / or the second wall panel structure 1 also include at least one adjustment plate unit 11c, which is correspondingly disposed at the misalignment gap. When multiple first wall panel units 11a and multiple second wall panel units 11b form misaligned gaps with the corresponding column structure 200, it can be understood that the two misaligned gaps are respectively located on the lateral sides of the multiple first wall panel units 11a and multiple second wall panel units 11b. At this time, each of the multiple wall panel units 11 in the first wall panel structure 1 and the second wall panel structure 1 includes an adjustment plate unit 11c, which is respectively set on the two misaligned gaps. When only multiple first wall panel units 11a or only multiple second wall panel units 11b form misaligned gaps with the corresponding column structure 200, it means that there are two misaligned gaps, which are respectively set on the lateral sides of the multiple first wall panel units 11a or multiple second wall panel units 11b. At this time, each of the multiple wall panel units 11 in the first wall panel structure 1 or the second wall panel structure 1 includes two adjustment plate units 11c, which are respectively set on the two misaligned gaps.

[0056] Please see Figure 2 It should be noted that in this application embodiment, the prefabricated fully recyclable rectangular working well support structure 1000 is used for the construction of the jacking pipe 2000. Therefore, it is necessary to reserve a clearance square hole on multiple adjacent wall panel structures 1 at the bottom layer to make way for the jacking pipe 2000. The arrangement of the wall panel units 11 of multiple adjacent wall panel structures 1 at the bottom layer can be changed according to the actual situation.

[0057] The wall panel unit 11 can have various sizes and specifications. Specifically, in this embodiment, the multiple wall panel units 11 in the multiple wall panel structures 1 include multiple adjustment plate units 11c and multiple main plate units. The size of the adjustment plate unit 11c is 1m×1m, and the size of the main plate unit is 1m×2m. The multiple main plate units include multiple first wall panel units 11a and multiple second wall panel units 11b.

[0058] Specifically, the overlap length between the first wall panel unit 11a and the second wall panel unit 11b is half of the horizontal length, that is, the overlap length is 1m.

[0059] To ensure that the wall panel unit 11 has sufficient rigidity, please refer to Figure 4 , Figure 6 and Figure 7 In this embodiment, the wall panel unit 11 includes a wall panel body 111 and a stiffening rib structure. The stiffening rib structure includes multiple transverse stiffening ribs 112 and multiple longitudinal stiffening ribs 113. The multiple transverse stiffening ribs 112 are spaced apart along the longitudinal direction, and the multiple longitudinal stiffening ribs 113 are spaced apart along the transverse direction. The longitudinal insertion portion 22 and the transverse limiting portion 21 on the wall panel unit 11 are connected to the side body. By providing multiple longitudinal stiffening ribs 113 and multiple transverse stiffening ribs 112, the wall panel unit 11 can be ensured to have sufficient rigidity while reducing the thickness requirement of the wall panel body 111.

[0060] Since the wall panel body 111 is relatively thin, if a longitudinal splicing error occurs during the splicing process, it can easily cause two longitudinally adjacent wall panel bodies 111 to misalign in the thickness direction, resulting in a lack of longitudinal contact and thus an arrangement error in the longitudinal direction. In view of this, in this specific embodiment, the plurality of transverse stiffening ribs 112 include two transverse low stiffening ribs 1121. The two transverse low stiffening ribs 1121 are respectively disposed on both sides of the longitudinal direction of the wall panel body 111 and are respectively flush with the two end faces of the longitudinal direction of the wall panel body 111. By having the two transverse low stiffening ribs 1121 respectively flush with the two end faces of the wall panel body 111 used for splicing in the longitudinal direction, the splicing area is increased, and the misalignment in the thickness direction of two longitudinally adjacent wall panel bodies 111 is avoided, thus preventing them from being unable to be spliced ​​to receive force.

[0061] Similarly, since the wall panel body 111 is relatively thin, if there is a lateral splicing error during the splicing process, it is easy for two laterally adjacent wall panel bodies 111 to be misaligned in the thickness direction, resulting in a lack of lateral contact and thus causing lateral arrangement errors. In view of this, in another specific embodiment, two longitudinal stiffening ribs 113 are respectively disposed on both sides of the wall panel body 111 in the lateral direction and are respectively flush with the two lateral end faces of the wall panel body 111. By having the two longitudinal stiffening ribs respectively flush with the two lateral end faces of the wall panel body 111 used for splicing, the splicing area is increased, and the misalignment in the thickness direction of two laterally adjacent wall panel bodies 111 is avoided, thus preventing them from being spliced ​​to receive force.

[0062] Please see Figure 8In another specific embodiment, the fastening structure 2 includes a longitudinally extending insert stiffening rib 221, the insert groove 221a is formed on the insert stiffening rib 221, and the plurality of transverse stiffening ribs 112 include transverse high stiffening ribs 1122, the transverse high stiffening ribs 1122 are arranged transversely in the middle of the wall panel body 111, and the transverse high stiffening ribs 1122 have a relief groove 1122a corresponding to the insert stiffening rib 221, the relief groove 1122a is used for the insert stiffening rib 221 to fit through, wherein the transverse high stiffening ribs 1122 are welded to the insert stiffening ribs 221. The longitudinal stiffness of the wall panel body 111 can be increased by the insertion stiffening rib 221, and the lateral stiffness of the wall panel body 111 can be increased by the transverse high stiffening rib 1122. At the same time, since the insertion stiffening rib 221 and the transverse high stiffening rib 1122 are cross-welded through the relief groove 1122a, the overall stiffness of the wall panel body 111 is strengthened. Furthermore, the portion of the transverse high stiffening rib 1122 corresponding to the relief groove 1122a can also cross the insertion groove 221a, thereby limiting the longitudinal reinforcing bar 32 and further securing the longitudinal reinforcing bar 32.

[0063] It should be noted that the above three parallel technical features are: "the plurality of transverse stiffening ribs 112 include two transverse low stiffening ribs 1121, the two transverse low stiffening ribs 1121 are respectively disposed on both sides of the longitudinal direction of the wall panel body 111, and are respectively flush with the two end faces of the longitudinal direction of the wall panel body 111", "wherein the two longitudinal stiffening ribs 113 are respectively disposed on both sides of the transverse direction of the wall panel body 111, and are respectively flush with the two end faces of the transverse direction of the wall panel body 111", and "the fastening structure 2 includes a longitudinally extending insertion stiffening rib 221, the insertion groove 221 The 'a' is formed in the interlocking stiffening rib 221. The plurality of transverse stiffening ribs 112 include transverse high stiffening ribs 1122. The transverse high stiffening ribs 1122 extend transversely and are disposed in the middle of the wall panel body 111. A relief groove 1122a is formed on the transverse high stiffening ribs 1122 corresponding to the interlocking stiffening ribs 221. The relief groove 1122a is used for the interlocking stiffening ribs 221 to fit and pass through. The transverse high stiffening ribs 1122 and the interlocking stiffening ribs 221 are welded together. One can be set, two can be set, or they can be set at the same time. Obviously, setting them at the same time has the best effect.

[0064] It is also worth mentioning that the longitudinal insertion portion 22 includes the insertion stiffening rib 221 in the above embodiment.

[0065] Please see Figure 10In this embodiment, each of the column structures 200 includes a column body 210 and two reinforcing plate structures 220. The two reinforcing plate structures 220 are fixed to the adjacent sides of the column body 210. Each reinforcing plate structure 220 is provided with a reinforcing limiting part 221. A reinforcing limiting groove 211a is formed on the reinforcing limiting part 221. The reinforcing limiting groove 211a is transversely connected and the groove opening faces the longitudinal direction. Multiple reinforcing limiting grooves 211a are provided corresponding to multiple transverse reinforcing bars 31. The two ends of the multiple transverse reinforcing bars 31 pass through the corresponding reinforcing limiting grooves 211a and are connected to the corresponding column body 210. The two transverse ends of the wall panel structure 1 respectively abut against the side ends of the two corresponding reinforcing plate structures 220. The column structure 200, formed by the fixed connection of the two reinforcing plate structures 220 with the column body 210, can withstand the negative bending moment caused by the pressure at the four corners of the rectangular working well. Moreover, the reinforcing plate structure 220 is provided with a reinforcing limiting part 221, and a reinforcing limiting groove 211a is formed on the reinforcing limiting part 221. The corresponding transverse steel bar 31 can pass through the reinforcing limiting groove 211a, thereby strengthening the connection point between the reinforcing plate structure 220 and the column body 210, thereby increasing the rigidity of the reinforcing plate structure 220, and thus ensuring the stability and safety of the overall structure.

[0066] Specifically, in the actual construction process, the reinforcing plate structure 220 is formed by stacking and welding multiple adjustment plate structures longitudinally. The reinforcing limiting part 221 includes the transverse limiting part 21, and the reinforcing limiting groove 211a includes the limiting groove 211a. This arrangement reduces the production cost of the reinforcing plate structure 220.

[0067] Specifically, to increase the connection stability between the wall panel structure 1 and the column structure 200, in this embodiment, the transverse reinforcing bars 31 and the corresponding limiting grooves 211a form transverse limiting groups in a one-to-one correspondence. Multiple transverse limiting groups are arranged at intervals along the longitudinal direction on a single wall panel structure 1. By arranging multiple transverse limiting groups at intervals along the longitudinal direction, the wall panel structure 1 can be connected to the column structure 200 from various local positions along the longitudinal direction, thereby strengthening the connection stability between the wall panel structure 1 and the column structure 200.

[0068] The fastening structure 2 can be a separate unit to allow the limiting groove 211a and the insertion groove 221a to be arranged separately. Alternatively, the fastening structure 2 can be an integral unit to allow the limiting groove 211a and the insertion groove 221a to be arranged together. For details, please refer to [link to relevant documentation]. Figure 4In this embodiment, the fastening structure 2 includes a plug-in stiffening rib 221 and a limiting ear plate 211. The plug-in stiffening rib 221 extends longitudinally and is disposed on the wall panel structure 1. The plug-in groove 221a is formed on the plug-in stiffening rib 221. The limiting ear plate 211 is formed on the end face of the plug-in stiffening rib 221 facing away from the wall panel structure 1. The limiting groove 211a is formed on the limiting ear plate 211. With this configuration, on one hand, since the insertion stiffening rib 221 extends longitudinally, it can strengthen the longitudinal stiffness of the wall panel structure 1 and reduce the thickness requirement of the wall panel structure 1. On the other hand, since the limiting groove 211a needs to be located on the side of the insertion groove 221a away from the wall panel structure 1, and the insertion stiffening rib 221 itself has a certain thickness, by directly setting the connecting ear plate on the end face of the insertion stiffening rib 221 away from the wall panel structure 1, the material used for the limiting ear plate 211 can be greatly saved, thereby reducing production costs.

[0069] Meanwhile, it is worth mentioning that the longitudinal insertion part 22 includes the insertion stiffening rib 221 in the above embodiment, and the lateral limiting part 21 includes the limiting ear plate 211 in the above embodiment.

[0070] Furthermore, two limiting ear plates 211 are provided, and are respectively provided on both sides of the transverse width direction of the insertion slot 221a.

[0071] For rectangular working wells of different sizes, the length of the transverse reinforcing bar 31 needs to be changed accordingly. When the length increases, the diameter of the transverse reinforcing bar 31 also needs to be increased to ensure that the strength of the transverse reinforcing bar 31 is sufficient. Therefore, please refer to [link / reference needed]. Figure 9 In this embodiment, in the longitudinal direction toward the inlet of the rectangular working well, the two opposite sidewalls of the limiting groove 211a are arranged far apart from each other. This arrangement ensures that when the diameter of the transverse reinforcing bar 31 changes, it can still be engaged with the corresponding depth of the limiting groove 211a, thereby increasing the versatility of the wall panel structure 1.

[0072] Furthermore, the limiting ear plate 211 is made of steel to ensure that when the transverse reinforcing bars 31 of different diameters are correspondingly engaged at the corresponding depths of the limiting groove 211a, the limiting ear plate 211 can undergo slight deformation, so that the two opposite sidewalls of the limiting groove 211a can clamp the transverse reinforcing bars 31.

[0073] It should be understood that in the embodiments of the present invention, the longitudinal direction corresponds to the vertical direction of actual construction, and the transverse direction corresponds to the horizontal direction of actual construction.

[0074] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A fabricated full-recovery rectangular working shaft support structure, characterized in that, It includes four column structures and four wall panel connecting assemblies. The four column structures are distributed at the four corners of the rectangular working well. Each wall panel connecting assembly is disposed between two adjacent column structures to fit tightly against the corresponding well wall of the rectangular working well. Each wall panel connecting assembly includes: Multiple wall panel structures are stacked longitudinally, and the two ends of each wall panel structure abut against the corresponding two column structures. Multiple fastening structures are respectively disposed on corresponding wall panel structures. Each fastening structure has an insertion groove and a limiting groove. The insertion groove is longitudinally continuous with its opening facing away from the wall panel structure. The multiple insertion grooves are arranged longitudinally opposite to each other to form an insertion channel. The limiting groove is transversely continuous with its opening facing the wellhead of the rectangular working well, and the limiting groove is located on the side of the insertion groove away from the wall panel structure. The reinforcing bar assembly includes longitudinal reinforcing bars and multiple transverse reinforcing bars. The longitudinal reinforcing bars are inserted longitudinally through the insertion channel, and the multiple transverse reinforcing bars are respectively snapped through the corresponding limiting grooves. Each transverse reinforcing bar can cross the opening of the insertion groove to press against the longitudinal reinforcing bar in the insertion groove. The longitudinal reinforcing bars and the splice slots correspond one-to-one to form longitudinal splice groups, and multiple longitudinal splice groups are arranged at intervals along the transverse direction; Each of the fastening structures includes multiple longitudinal insertion parts and multiple transverse limiting parts. Multiple insertion slots arranged in the transverse direction are respectively formed in the corresponding longitudinal insertion parts. Multiple limiting slots are arranged in a lateral alignment and are respectively formed in the multiple transverse limiting parts. Each of the wall panel structures includes multiple wall panel units spliced ​​together along the transverse first and last pieces. Each wall panel unit is connected to at least one of the longitudinal insertion parts and at least one of the transverse limiting parts in the corresponding fastening structures. The wall panel unit at the side end abuts against the corresponding column structure. Each of the aforementioned wall panel units is connected to the corresponding plurality of the aforementioned longitudinal insertion portions; The plurality of wall panel structures include adjacent first wall panel structures and second wall panel structures. The plurality of wall panel units in the first wall panel structure include a plurality of first wall panel units. The plurality of wall panel units in the second wall panel structure include a plurality of second wall panel units. The plurality of first wall panel units and the plurality of second wall panel units are staggered so that one first wall panel unit is spanned and overlapped to two corresponding second wall panel units. The plurality of longitudinal insertion portions on the first wall panel unit are respectively provided corresponding to the longitudinal insertion portions on two second wall panel units. A misalignment gap is formed between multiple first wall panel units and / or multiple second wall panel units and the corresponding column structure. The multiple wall panel units in the first wall panel structure and / or the second wall panel structure also include at least one adjustment plate unit, which is correspondingly disposed at the misalignment gap.

2. The fabricated full-recovery rectangular workwell support structure of claim 1, wherein, The wall panel unit includes a wall panel body and a stiffening rib structure. The stiffening rib structure includes multiple transverse stiffening ribs and multiple longitudinal stiffening ribs. The multiple transverse stiffening ribs are spaced apart along the longitudinal direction, and the multiple longitudinal stiffening ribs are spaced apart along the transverse direction. The longitudinal insertion portion and the transverse limiting portion on the wall panel unit are connected to the wall panel body.

3. The fabricated full-recovery rectangular workwell support structure of claim 2, wherein, The plurality of transverse stiffening ribs includes two transverse low stiffening ribs, which are respectively disposed on both sides of the longitudinal direction of the wall panel body and are flush with the two end faces of the longitudinal direction of the wall panel body; and / or, Two of the longitudinal stiffening ribs are respectively disposed on both sides of the wall panel body in the transverse direction, and are respectively flush with the two transverse end faces of the wall panel body; and / or, The fastening structure includes a longitudinally extending insert stiffening rib, the insert groove being formed in the insert stiffening rib, and a plurality of transverse stiffening ribs including transverse high stiffening ribs. The transverse high stiffening ribs are arranged transversely in the middle of the wall panel body, and the transverse high stiffening ribs have relief grooves corresponding to the insert stiffening ribs. The relief grooves are used to allow the insert stiffening ribs to fit and pass through. The transverse high stiffening ribs are welded to the insert stiffening ribs.

4. The fabricated full-recovery rectangular workwell support structure of claim 1, wherein, Each of the column structures includes a column body and two reinforcing plate structures. The two reinforcing plate structures are fixed on adjacent sides of the column body. Each of the reinforcing plate structures is provided with a reinforcing limiting part. A reinforcing limiting groove is formed on the reinforcing limiting part. The reinforcing limiting groove is transversely connected and the groove opening faces the longitudinal direction. Multiple reinforcing limiting grooves are provided corresponding to multiple transverse reinforcing bars. The two ends of the plurality of transverse steel bars pass through the corresponding reinforcing limiting grooves and are connected to the corresponding column bodies; The two ends of each of the wall panel structures in the lateral direction respectively abut against the side ends of the two corresponding reinforcing plate structures.

5. The fabricated full-recovery rectangular workwell support structure of claim 1, wherein, The transverse reinforcing bars and the corresponding limiting grooves form transverse limiting groups in a one-to-one correspondence. On a wall panel structure, multiple transverse limiting groups are arranged at intervals along the longitudinal direction.

6. The fabricated full-recovery rectangular workwell support structure of claim 1, wherein, The fastening structure includes a plug-in stiffening rib and a limiting ear plate. The plug-in stiffening rib extends longitudinally and is disposed on the wall panel structure. The plug-in groove is formed on the plug-in stiffening rib. The limiting ear plate is formed on the end face of the plug-in stiffening rib facing away from the wall panel structure. The limiting groove is formed on the limiting ear plate.

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