Steel plate guide wall and construction method thereof

Abstract

The invention relates to a steel plate guide wall and a construction method thereof, and relates to the technical field of guide wall construction, the steel plate guide wall comprises two sets of steel guide wall bodies which are symmetrically arranged at intervals, and each set of steel guide wall body comprises a plurality of wallboards arranged in sequence, supporting legs fixedly arranged at the bottoms of the wallboards and connecting blocks fixedly arranged on the two sides of the wallboards in the length direction; and the quick-connection anti-loosening mechanism is arranged between the two adjacent wall plates in the same group of steel guide wall main bodies and is used for connecting the two connecting blocks, close to each other, of the adjacent wall plates and applying anti-loosening pre-tightening force to the two adjacent connecting blocks. The construction method has the advantages that the construction period of the guide wall is shortened, the mounting and dismounting difficulty and cost of the guide wall are reduced, construction waste is reduced, and the repeated utilization rate of the guide wall is increased.

Description

Technical Field

[0001] The present application relates to the technical field of guide wall construction, and in particular to a steel plate guide wall and a construction method thereof. Background Art

[0002] The guide wall is a key construction technical measure adopted by the construction unit when constructing the underground continuous wall. It is a temporary reinforced concrete structure set along the center line of the underground continuous wall. It is mainly used to ensure the accurate positioning of the underground continuous wall and to bear various static and dynamic loads during the construction process, such as steel cages, conduits for pouring concrete, troughing machines, etc. The construction accuracy of the guide wall directly affects the construction quality of the underground continuous wall, so it must be strictly controlled during the design and construction process.

[0003] Common guide wall shapes include "L" type or inverted "L" type. The appropriate guide wall form is selected according to different soil conditions. At present, the traditional guide wall method generally adopts concrete guide wall, which needs to go through excavation, production and installation of steel bars, erection of formwork, pouring of concrete and other processes. After pouring, it still needs a certain curing time. At the same time, during the construction of the concrete guide wall, the toe of the guide wall should be inserted into the undisturbed original soil layer to ensure its stability and bearing capacity. The construction period of the entire concrete guide wall is long, the installation and disassembly is complicated and difficult, and the guide wall cannot be reused and the cost is high. After demolition, a large amount of construction waste will be generated, which is not conducive to environmental protection. Summary of the invention

[0004] In order to shorten the construction period of the guide wall, reduce the difficulty and cost of installing and removing the guide wall, reduce construction waste, and improve the reuse rate of the guide wall, the present application provides a steel plate guide wall and a construction method thereof.

[0005] In the first aspect, the present application provides a steel plate guide wall and a construction method thereof, which adopts the following technical solution: A steel plate guide wall, comprising: The steel guide wall bodies are symmetrically arranged in two groups at intervals, and each group of the steel guide wall bodies includes a plurality of wall panels arranged in sequence, legs fixed at the bottom of the wall panels, and connecting blocks fixed at both sides of the wall panels in the length direction; The quick-connect anti-loosening mechanism is arranged between two adjacent wall panels in the same group of steel guide wall bodies, and is used to connect two connecting blocks of adjacent wall panels close to each other, and to apply an anti-loosening pre-tightening force to the two adjacent connecting blocks.

[0006] By adopting the above technical scheme, when the guide wall is constructed, the compaction equipment is first used to compact the guide wall at the construction site to make the soil within the guide wall dense and prevent the groove from collapsing. Then, measurement and layout are carried out and the guide groove is excavated. The width and depth of the guide groove should be suitable for easy insertion of the steel plate guide wall. Then, the prefabricated wall panels are hoisted and embedded in the guide groove one by one, and the two connecting blocks of the two adjacent wall panels close to each other are aligned by measurement and layout. Then, the two adjacent connecting blocks are connected and fixed by a quick-connect anti-loosening mechanism, and an anti-loosening pre-tightening force is applied. Then, the wall panels are installed one by one to form a continuous steel guide wall body, and then the soil is backfilled on one side of the steel guide wall body leg to compact the steel guide wall body. After the two groups of spaced steel guide wall bodies are installed, the pouring Concrete of the underground continuous wall is poured in the chamber. After the concrete has initially set, the backfill soil on one side of the support leg of the steel guide wall body is excavated, and the fixation of the quick-connect anti-loosening mechanism is released. Then the steel guide wall body can be dismantled for recycling. Prefabricated steel wall panels, connecting blocks, quick-connect anti-loosening mechanisms, etc. are used in combination, so that the steel plate guide wall can be reused, and a large amount of construction waste generated after the demolition of the concrete guide wall can be reduced, and the construction cost can be reduced. The modular design of the steel plate guide wall makes the installation and dismantling process simpler, improves the construction and dismantling efficiency of the guide wall, greatly shortens the construction period, and improves the construction efficiency. At the same time, the quick-connect anti-loosening mechanism connects the two connecting blocks close to each other on the adjacent wall panels, which not only realizes quick connection, but also applies anti-loosening pre-tightening force to the two adjacent connecting blocks to ensure the firmness and stability of the connection.

[0007] Optionally, the quick-connect anti-loosening mechanism includes: A connecting rod is slidably connected to a connecting block on one side of the wall panel, and a plurality of connecting rods are provided, and the plurality of connecting rods are spaced apart along the height direction of the wall panel; A plug-in block is fixedly arranged on a side of the wall panel away from the connecting rod, wherein a plurality of plug-in slots are provided in the plug-in block, wherein the plurality of plug-in slots correspond to the plurality of connecting rods one by one, and the connecting rods can be plugged into the corresponding plug-in slots; A quick-connect assembly is provided between the wall panel and the plurality of connecting rods, and is used to synchronously drive the plurality of connecting rods to be plugged into corresponding plug-in slots on one side of the adjacent wall panel; The anti-loosening pre-tightening component is arranged between the connecting rod and the wall panel, and is used to clamp the connecting rod into the corresponding plug-in slot, and at the same time apply a pre-tightening force to the end of the connecting rod away from the corresponding plug-in slot, so that two adjacent connecting blocks fit tightly.

[0008] By adopting the above technical solution, when two adjacent connecting blocks are connected and fixed by the quick-connect anti-loosening mechanism, the connecting blocks on the two adjacent wall panels are first aligned, and then the multiple connecting rods are synchronously driven by the quick-connect assembly to move into the corresponding plug-in grooves close to the adjacent wall panels. In the process of the connecting rods being plugged into the corresponding plug-in grooves, the anti-loosening pre-tightening assembly gradually clamps the connecting rods into the plug-in grooves, and applies a pre-tightening force to the end of the connecting rod away from the corresponding plug-in groove, so that the two adjacent connecting blocks are tightly fitted, which has the effect of anti-loosening pre-tightening, thereby realizing the rapid connection of the two adjacent connecting blocks; when the construction personnel need to release the connection and fixation of the two adjacent connecting blocks, first The fixing of the plug-in slot to the connecting rod is released by the anti-loosening pre-tightening component, and then the multiple connecting rods are synchronously driven by the quick-connect component to move to the corresponding plug-in slot on the side away from the adjacent wall panel, so that the connecting rod and the plug-in slot can be separated; wherein, the connection process of the adjacent wall panels can be completed quickly through the cooperation of the quick-connect component, the anti-loosening pre-tightening component and the plug-in block, so that the two adjacent connecting blocks are not easily affected by the construction vibration and the like to cause dislocation and movement, resulting in a gap between the two, thereby improving the firmness and stability of the connection between the two adjacent connecting blocks, preventing subsequent mud pouring leakage, forming an overall closed slot section, playing a role in intercepting and preventing seepage, and improving construction quality and building safety.

[0009] Optionally, the anti-loosening pre-tightening component includes: A sliding sleeve, which is slidingly sleeved on the outside of the connecting rod; A support seat is fixed on the outer side of the wall panel; The damping telescopic rod is fixed between the sliding sleeve and the supporting seat; The preload spring is sleeved on the outside of the damping telescopic rod. When the connecting rod is inserted into the insertion slot, the connecting rod is extended to the maximum relative to the sliding sleeve, and the preload spring is in a stretched state, giving the sliding sleeve a force to approach the support seat; The self-locking component is arranged between the connecting rod and the plug-in block, and is used to lock the position of the connecting rod after it moves in the plug-in slot.

[0010] By adopting the above technical scheme, before the connecting rod is inserted into the plug-in slot, the pre-tensioning spring is in a natural state and is not stretched. When the connecting rod begins to be inserted into the plug-in slot of the adjacent wall panel, the connecting rod is stretched to the maximum relative to the sliding sleeve, and the connecting rod cannot move relative to the sliding sleeve. At this time, the pre-tensioning spring begins to be stretched. When the connecting rod continues to be inserted into the plug-in slot, the connecting rod drives the sliding sleeve to apply a pulling force to the pre-tensioning spring. When the pulling force increases to the preset tensioning force, the self-locking component will automatically lock the position of the connecting rod, so that the pre-tensioning spring always gives the sliding sleeve a pulling force in the direction of the support seat, thereby ensuring a tight fit between the two adjacent connecting blocks; wherein the damping telescopic rod cooperates with the pre-tensioning spring to allow the connecting rod to be inserted into the plug-in slot and locked, which can absorb the vibration or impact of the wall panel, so that the connecting rod is not easily loosened due to external force, thereby ensuring a tight connection between the connecting rod and the plug-in slot, and improving the stability and reliability of the connection.

[0011] Optionally, the self-locking component includes: An adjusting screw, which is threadedly connected to the plug-in block and has one end extending out of the plug-in block; A synchronous plate is rotatably connected to the end of the adjusting screw rod, a moving groove is provided in the plug-in block, and the synchronous plate can be located in the moving groove and move along a side close to or away from the wall panel; A locking group is fixed to the synchronous plate, and a plurality of locking groups are arranged along the height direction of the wall plate, and the plurality of locking groups correspond to the plurality of connecting rods one by one, and each of the locking groups includes a plurality of locking blocks evenly spaced and arranged along the moving direction of the connecting rod; A clamping block is slidably connected to the connecting rod along the moving direction of the vertical connecting rod, the end of the clamping block can extend out of the connecting rod, the clamping block can be clamped between two adjacent locking blocks, and a chamfer is provided on one side of the clamping block close to the locking block; The locking spring is fixedly arranged between the clamping block and the connecting rod, is always in a compressed state and gives the clamping block a force toward the outside of the connecting rod.

[0012] By adopting the above technical solution, when the connecting rod begins to be inserted into the plug-in slot of the adjacent wall panel, the end of the card block retracts into the inside of the connecting rod under the guidance of the chamfer, and as the connecting rod is further inserted, the card block moves between the two adjacent locking blocks. At this time, the force of the locking spring causes the card block to extend out of the outside of the connecting rod and be carded between the two adjacent locking blocks, forming a preliminary locking state; when the connecting rod continues to move into the plug-in slot, the card block retracts into the inside of the connecting rod again under the action of the chamfer, and as the connecting rod goes deeper, the card block moves between the two adjacent locking blocks again, and extends out under the action of the locking spring and is carded between the locking blocks. This process will be repeated as the connecting rod goes deeper until the preload spring and the damping telescopic rod are locked. The pre-tightening tension reaches the required pre-tightening force; when it is necessary to release the fixation on the end of the connecting rod, the construction personnel rotate the adjusting screw to drive the synchronous plate to move. The movement of the synchronous plate causes the multiple locking blocks in the locking group to move to the side away from the plug-in slot, thereby separating the locking block from the snap-in block and relieving the pressure on the anti-loosening pre-tightening component; after the locking block is separated from the snap-in block, the construction personnel can manipulate the quick-connect assembly to drive the connecting rod to the outside of the plug-in slot, thereby releasing the connection between the two adjacent wall panels; the self-locking component enables the connecting rod to automatically lock the moved position after being inserted into the plug-in slot, and through the dynamic contact between the snap-in block and the locking block and the pre-tightening force of the locking spring, the pre-tightening force of the anti-loosening pre-tightening component is gradually increased to ensure the stability and reliability of the connection.

[0013] Optionally, the quick-connect assembly includes: A driving rack is fixed on one side of the connecting rod; The rotating shaft is rotatably connected in the connecting block along the vertical direction. A plurality of driving gears corresponding to the plurality of connecting rods are fixedly sleeved on the rotating shaft. The driving gears are meshed with the driving racks on the corresponding connecting rods.

[0014] By adopting the above technical solution, when the connecting rod needs to be plugged into the corresponding plug-in slot on one side of the adjacent wall panel, the rotating shaft is first driven to rotate, and the rotating shaft drives the driving gear to rotate accordingly, and then the driving gear drives the driving rack and the connecting rod to move, so that the connecting rod is plugged into the corresponding plug-in slot on one side of the adjacent wall panel; the rotating shaft can synchronously drive multiple driving gears to rotate, thereby realizing the synchronous movement of multiple connecting rods, ensuring that all connecting rods are plugged into the corresponding plug-in slots at the same time, thereby improving the efficiency and consistency of the connection.

[0015] Optionally, the quick-connect assembly further includes: A hand wheel is fixedly mounted on the top of the rotating shaft, a storage chamber is provided on the top of the connecting block, and the hand wheel is located in the storage chamber; The cover plate is hinged to the connecting block and buckled to one side of the storage chamber.

[0016] By adopting the above technical solution, construction workers can drive the rotating shaft to rotate by rotating the handwheel, thereby driving the movement of the driving gear and the connecting rod. During the operation, there is no need to apply force to the rotating shaft through other auxiliary tools such as wrenches, thereby improving the convenience of operation. The cover plate is buckled to the top of the storage chamber to close the storage chamber. When the handwheel is not in use, the cover plate can be tightened to prevent impurities such as dirt and dust from entering the storage chamber, thereby protecting internal components such as the driving gear and rotating shaft.

[0017] Optionally, reinforcing ribs are fixed between the wall panels and the legs.

[0018] By adopting the above technical solution, the strengthening ribs increase the connection strength between the wall panels and the legs, disperse and transfer the load on the wall panels, and reduce the deformation of the wall panels and the legs when subjected to force.

[0019] Optionally, a hanging ring is fixedly provided on the top of the wall panel.

[0020] By adopting the above technical solution, when the position of the wall panel needs to be adjusted, the lifting ring provides a lifting point for the wall panel, which is convenient for construction workers to operate.

[0021] In a second aspect, the present application also provides a construction method of a steel plate guide wall, which is applicable to the above-mentioned steel plate guide wall, and the construction steps are as follows: S1. Repair the construction platform and use compaction equipment to compact the guide wall to be constructed, so that the soil within the guide wall is dense and the trench is prevented from collapsing; S2. Measure, lay out and excavate the guide groove. The width and depth of the guide groove should be such that the steel plate guide wall can be easily placed. S3. Steel plate guide wall hoisting. After the guide groove is excavated, the prefabricated wall panels are hoisted one by one and embedded into the guide groove, and the two connecting blocks of two adjacent wall panels that are close to each other are aligned; S4, steel plate guide wall splicing, connect and fix two adjacent connection blocks through a quick-connect anti-loosening mechanism, apply anti-loosening pre-tightening force, and then install wall panels one by one to form a continuous steel guide wall body; S5. Steel plate guide wall reinforcement, backfill soil on one side of the steel guide wall main body leg to compact the steel guide wall main body; S6. Trenching construction: After the installation and reinforcement of the steel plate guide wall is completed, continuous wall troughing construction is carried out to avoid disturbing the steel guide trough during construction; S7. Pour the concrete of the underground continuous wall into the pouring chamber formed between the two sets of steel guide wall bodies. After the concrete is initially set, excavate the backfill soil on one side of the steel guide wall body support leg, release the fast-connect anti-loosening mechanism, and then dismantle the steel guide wall body for recycling.

[0022] Optionally, in S4, the top surface of the steel plate guide wall is 50mm to 100mm higher than the ground, the inner wall surface of the steel plate guide wall should be vertical, and the net distance of the inner wall surface is greater than the design thickness of the underground continuous wall by 40mm to 60mm.

[0023] By adopting the above technical solution, the top surface of the guide wall is 50mm to 100mm above the ground, which can effectively prevent surface water from flowing into the guide wall, avoid mud dilution, and maintain the performance of the mud. The guide wall serves as a construction guide, providing an accurate construction benchmark for the trenching machinery, improving construction efficiency and reducing construction deviations.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the coordinated use of prefabricated steel wall panels, connection blocks, quick-connect anti-loosening mechanisms, etc., the steel plate guide wall can be reused, reducing the large amount of construction waste generated after the demolition of the concrete guide wall, reducing construction costs, and the modular design of the steel plate guide wall makes the installation and removal process simpler, improving the construction and removal efficiency of the guide wall, greatly shortening the construction period, and improving construction efficiency. At the same time, the quick-connect anti-loosening mechanism connects the two connection blocks of adjacent wall panels that are close to each other, which not only realizes quick connection, but also applies anti-loosening pre-tightening force to the two adjacent connection blocks to ensure the firmness and stability of the connection; 2. The quick-connect anti-loosening mechanism can quickly complete the connection process of adjacent wall panels through the cooperation of quick-connect components, anti-loosening pre-tightening components and plug-in blocks, so that the two adjacent connection blocks are not easily affected by construction vibrations and other factors, resulting in dislocation and movement, which will cause a gap between the two, thereby improving the firmness and stability of the connection between the two adjacent connection blocks, preventing subsequent mud pouring leakage, forming an overall closed slot section, playing a role in intercepting and preventing seepage, and improving construction quality and building safety; 3. The rotating shaft in the quick-connect assembly can synchronously drive multiple driving gears to rotate, thereby realizing the synchronous movement of multiple connecting rods, ensuring that all connecting rods are plugged into the corresponding plug-in slots at the same time, improving the efficiency and consistency of the connection; 4. The damping telescopic rod in the anti-loosening pre-tightening assembly cooperates with the pre-tightening spring to absorb the vibration or impact of the wall panel after the connecting rod is inserted into the plug-in slot and locked, so that the connecting rod is not easy to loosen due to external force, ensuring the tight connection between the connecting rod and the plug-in slot, and improving the stability and reliability of the connection; 5. The self-locking component enables the connecting rod to automatically lock the moved position after being inserted into the plug-in slot. Through the dynamic contact between the clamping block and the locking block and the pre-tightening force of the locking spring, the pre-tightening force of the anti-loosening pre-tightening component is gradually increased to ensure the stability and reliability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the steel plate guide wall in this application; Figure 2 It is a schematic diagram showing the local structure of the steel plate guide wall; Figure 3 is a partial cross-sectional schematic diagram showing a steel plate guide wall; Figure 4 It is a partial cross-sectional schematic diagram showing a quick-connect anti-loosening mechanism; Figure 5 Yes means Figure 4 Schematic diagram of the local enlarged structure of part A.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. wall panel; 2. support leg; 3. connecting block; 4. reinforcing rib; 5. lifting ring; 6. quick-connect anti-loosening mechanism; 61. connecting rod; 62. plug-in block; 621. plug-in slot; 622. moving slot; 63. quick-connect assembly; 631. driving rack; 632. rotating shaft; 633. driving gear; 634. hand wheel; 635. storage compartment; 636. cover plate; 64. anti-loosening pre-tightening assembly; 641. sliding sleeve; 642. supporting seat; 643. damping telescopic rod; 644. pre-tightening spring; 645. soil retaining cover; 646. self-locking component; 6461. adjusting screw; 6462. synchronous plate; 6463. locking block; 6464. clamping block; 6465. chamfer; 6466. locking spring. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0028] The present application embodiment discloses a steel plate guide wall. Figure 1 and Figure 2 The steel plate guide wall includes two groups of symmetrical and spaced steel guide wall bodies, each group of steel guide wall bodies includes a plurality of wall panels 1 arranged in sequence, legs 2 fixed at the bottom of the wall panels 1, and connecting blocks 3 fixed at both sides of the length direction of the wall panels 1, wherein reinforcing ribs 4 are fixed between the wall panels 1 and the legs 2, and the reinforcing ribs 4 are used to increase the connection strength between the wall panels 1 and the legs 2, disperse and transfer the load on the wall panels 1, and reduce the deformation of the wall panels 1 and the legs 2 when subjected to force. A lifting ring 5 is also fixed on the top of the wall panel 1, and the lifting ring 5 is used to provide a lifting point for the lifting of the wall panel 1. A quick-connect anti-loosening mechanism 6 is provided between two adjacent wall panels 1 in the same group of steel guide wall bodies, and the quick-connect anti-loosening mechanism 6 is used to connect two connecting blocks 3 of adjacent wall panels 1 that are close to each other, and to apply an anti-loosening pre-tightening force to the two adjacent connecting blocks 3.

[0029] When constructing the guide wall, first use compaction equipment to compact the guide wall at the construction site to make the soil within the guide wall dense and prevent collapse. Then measure and lay out and excavate the guide groove. The width and depth of the guide groove should be suitable for easy insertion of the steel plate guide wall. Then, the prefabricated wall panels 1 are hoisted and embedded in the guide groove one by one, and the two connecting blocks 3 of the two adjacent wall panels 1 that are close to each other are aligned by measurement and layout. Then, the two adjacent connecting blocks 3 are connected and fixed by the quick-connect anti-loosening mechanism 6, and an anti-loosening pre-tightening force is applied. Then, the wall panels 1 are installed one by one to form a continuous steel guide wall body, and then the soil is backfilled on one side of the steel guide wall body leg 2 to compact the steel guide wall body.

[0030] After the installation of the two groups of spaced steel guide wall bodies is completed, the concrete of the underground continuous wall is poured into the pouring chamber formed between the two groups of steel guide wall bodies. After the concrete is initially set, the backfill soil on one side of the steel guide wall body support leg 2 is excavated, and the fast connection anti-loosening mechanism 6 is released, and then the steel guide wall body is dismantled for recycling. The prefabricated steel wall panels 1, connecting blocks 3, and quick connection anti-loosening mechanisms 6 are used together, so that the steel plate guide wall can be reused, reducing the large amount of construction waste generated after the concrete guide wall is dismantled, and reducing the construction cost. The modular design of the steel plate guide wall makes the installation and dismantling process simpler, improves the efficiency of the guide wall construction and dismantling, and greatly shortens the construction period. At the same time, the quick connection anti-loosening mechanism 6 connects the two connecting blocks 3 of the adjacent wall panels 1 that are close to each other, which not only realizes a quick connection, but also applies an anti-loosening pre-tightening force to the two adjacent connecting blocks 3 to ensure the firmness and stability of the connection.

[0031] In some embodiments, reference Figure 3 and Figure 4 The quick-connect anti-loosening mechanism 6 includes a plurality of connecting rods 61 slidably connected to one side of the wallboard 1. For example, two connecting rods 61 are preferably arranged at intervals along the height direction of the wallboard 1. A plug-in block 62 is fixedly provided on one side of the wallboard 1 along its length direction and away from the connecting rod 61. A plurality of plug-in slots 621 are provided in the plug-in block 62. The plurality of plug-in slots 621 correspond to the plurality of connecting rods 61 one by one, and the connecting rods 61 can be plugged into the corresponding plug-in slots 621. A quick-connect assembly 63 is provided between the wallboard 1 and the plurality of connecting rods 61. The quick-connect assembly 63 is used to synchronously drive the plurality of connecting rods 61 to be plugged into the corresponding plug-in slots 621 on one side of the adjacent wallboard 1. An anti-loosening pre-tightening assembly 64 is also provided between the connecting rod 61 and the wallboard 1. The anti-loosening pre-tightening assembly 64 is used to clamp the connecting rod 61 into the corresponding plug-in slot 621, and at the same time, a pre-tightening force is applied to the end of the connecting rod 61 away from the corresponding plug-in slot 621, so that the two adjacent connecting blocks 3 fit tightly.

[0032] When two adjacent connecting blocks 3 are connected and fixed by the quick-connect anti-loosening mechanism 6, the connecting blocks 3 on the two adjacent wall panels 1 are first aligned, and then the multiple connecting rods 61 are synchronously driven by the quick-connect assembly 63 to move into the corresponding plug-in groove 621 close to the side of the adjacent wall panel 1. In the process of the connecting rod 61 being plugged into the corresponding plug-in groove 621, the anti-loosening pre-tightening assembly 64 gradually clamps the connecting rod 61 into the plug-in groove 621, and applies a pre-tightening force to the end of the connecting rod 61 away from the corresponding plug-in groove 621, so that the two adjacent connecting blocks 3 are tightly fitted, which has the effect of anti-loosening pre-tightening, thereby realizing the quick connection of the two adjacent connecting blocks 3.

[0033] When the construction personnel need to release the connection and fixation of two adjacent connection blocks 3, they first release the fixation of the plug-in slot 621 on the connection rod 61 through the anti-loosening pre-tightening component 64, and then use the quick-connect component 63 to synchronously drive multiple connection rods 61 to move to the corresponding plug-in slot 621 away from the adjacent wall panel 1, so that the connection rod 61 is separated from the plug-in slot 621. The quick-connect component 63, the anti-loosening pre-tightening component 64 and the plug-in block 62 can quickly complete the connection process of the adjacent wall panels 1, so that the two adjacent connection blocks 3 are not easily affected by construction vibrations and other factors to cause dislocation and movement, resulting in a gap between the two, thereby improving the firmness and stability of the connection between the two adjacent connection blocks 3, preventing subsequent mud pouring leakage, thereby playing a role in intercepting and preventing seepage, and improving construction quality and building safety.

[0034] In some embodiments, reference Figure 3 and Figure 4 The quick-connect assembly 63 includes a driving rack 631 fixedly mounted on one side of the connecting rod 61. A rotating shaft 632 is rotatably connected in the connecting block 3 in the vertical direction. A plurality of driving gears 633 corresponding to the plurality of connecting rods 61 are fixedly sleeved on the rotating shaft 632. The driving gears 633 mesh with the driving racks 631 on the corresponding connecting rods 61. A hand wheel 634 is fixedly mounted on the top of the rotating shaft 632. A storage chamber 635 is opened on the top of the connecting block 3. The hand wheel 634 is located in the storage chamber 635. A cover plate 636 is hinged on the connecting block 3. The cover plate 636 is buckled to one side of the storage chamber 635.

[0035] When the connecting rod 61 needs to be plugged into the corresponding insertion slot 621 on one side of the adjacent wall panel 1, the hand wheel 634 is first driven to rotate, and the hand wheel 634 drives the rotating shaft 632 to rotate, and the rotating shaft 632 drives the driving gear 633 to rotate accordingly, and then the driving gear 633 drives the driving rack 631 and the connecting rod 61 to move, so that the connecting rod 61 is plugged into the corresponding insertion slot 621 on one side of the adjacent wall panel 1. The rotating shaft 632 can synchronously drive multiple driving gears 633 to rotate, thereby realizing the synchronous movement of multiple connecting rods 61, ensuring that all connecting rods 61 are plugged into the corresponding insertion slots 621 at the same time, thereby improving the efficiency and consistency of the connection. During the operation, there is no need to apply force to the rotating shaft 632 through other auxiliary tools such as wrenches, which improves the convenience of operation. At the same time, the cover 636 is buckled to the top of the storage chamber 635 to close the storage chamber 635. When the hand wheel 634 is not in use, the cover 636 can be fastened to prevent impurities such as dirt and dust from entering the storage chamber 635, thereby protecting internal components such as the driving gear 633 and the rotating shaft 632.

[0036] In some embodiments, reference Figure 3 and Figure 4 The anti-loosening pre-tightening assembly 64 includes a sliding sleeve 641 slidably sleeved on the outside of the connecting rod 61; a support seat 642 is fixedly provided on the outside of the wall panel 1, and a damping telescopic rod 643 is fixedly provided between the sliding sleeve 641 and the support seat 642. A pre-tightening spring 644 is sleeved on the outside of the damping telescopic rod 643. When the connecting rod 61 is inserted into the insertion groove 621, the connecting rod 61 is extended to the maximum relative to the sliding sleeve 641, that is, the connecting rod 61 cannot move relative to the sliding sleeve 641, and the pre-tightening spring 644 is in a stretched state, and gives the sliding sleeve 641 a force to approach the support seat 642. A soil retaining cover 645 is fixedly provided on one side of the support seat 642, and the soil retaining cover 645 is sleeved on the outside of the sliding sleeve 641. A self-locking component 646 is provided between the connecting rod 61 and the plug-in block 62 , and the self-locking component 646 is used to lock the position of the connecting rod 61 after it is moved in the plug-in slot 621 .

[0037] Before the connecting rod 61 is inserted into the insertion slot 621, the preload spring 644 is in a natural state and is not stretched. When the connecting rod 61 begins to be inserted into the insertion slot 621 of the adjacent wallboard 1, the connecting rod 61 is stretched to the maximum relative to the sliding sleeve 641, and the connecting rod 61 cannot move relative to the sliding sleeve 641. At this time, the preload spring 644 begins to be stretched. When the connecting rod 61 continues to be inserted into the insertion slot 621, the connecting rod 61 drives the sliding sleeve 641 to apply tension to the preload spring 644. When the tension increases to the preset tension, the self-locking component 646 will automatically lock the position of the connecting rod 61, so that the preload spring 644 always gives the sliding sleeve 641 a pulling force in the direction of the support seat 642, thereby ensuring the tight fit between the two adjacent connecting blocks 3. The damping telescopic rod 643 cooperates with the pre-tightening spring 644 to allow the connecting rod 61 to be inserted into the plug-in slot 621 and locked, which can absorb the vibration or impact of the wall panel 1, making it difficult for the connecting rod 61 to loosen due to external force, ensuring the tight connection between the connecting rod 61 and the plug-in slot 621, and improving the stability and reliability of the connection.

[0038] In some embodiments, reference Figure 4 and Figure 5 The self-locking component 646 includes an adjusting screw 6461 threadedly connected to the plug-in block 62. For example, one end of the adjusting screw 6461 extends out of the plug-in block 62 and is perpendicular to the wall panel 1. The end of the adjusting screw 6461 is rotatably connected to a synchronization plate 6462. A moving groove 622 is provided in the plug-in block 62. The synchronization plate 6462 can be located in the moving groove 622 and move along a side close to or away from the wall panel 1. The synchronization plate 6462 is fixed with a plurality of locking groups arranged at intervals along the height direction of the wall panel 1. The plurality of locking groups correspond to the plurality of connecting rods 61 one by one, and each locking group includes a plurality of locking blocks 6463 evenly spaced along the moving direction of the connecting rod 61. A clamping block 6464 is slidably connected in the connecting rod 61 along the moving direction perpendicular to the connecting rod 61. The end of the clamping block 6464 can extend out of the connecting rod 61. The clamping block 6464 can be clamped between two adjacent locking blocks 6463, and a chamfer 6465 is provided on one side of the clamping block 6464 close to the locking block 6463. A locking spring 6466 is fixed between the clamping block 6464 and the connecting rod 61. The locking spring 6466 is always in a compressed state and gives the clamping block 6464 a force toward the outside of the connecting rod 61.

[0039] When the connecting rod 61 begins to be inserted into the insertion slot 621 of the adjacent wall panel 1, the end of the snap-in block 6464 retracts into the inside of the connecting rod 61 under the guidance of the chamfer 6465. As the connecting rod 61 is further inserted, the snap-in block 6464 moves between two adjacent locking blocks 6463. At this time, the force of the locking spring 6466 causes the snap-in block 6464 to extend out of the outside of the connecting rod 61 and snap-in between two adjacent locking blocks 6463, forming a preliminary locking state. When the connecting rod 61 continues to move into the insertion slot 621, the snap-in block 6464 retracts again into the inside of the connecting rod 61 under the action of the chamfer 6465. As the connecting rod 61 goes deeper, the snap-in block 6464 moves again between two adjacent locking blocks 6463, and extends out under the action of the locking spring 6466, and snaps into place between the locking blocks 6463. This process will be repeated as the connecting rod 61 goes deeper until the pre-tightening force between the pre-tightening spring 644 and the damping telescopic rod 643 reaches the required pre-tightening force.

[0040] When it is necessary to release the fixation of the end of the connecting rod 61, the construction personnel rotate the adjusting screw 6461 to drive the synchronous plate 6462 to move. The movement of the synchronous plate 6462 causes the multiple locking blocks 6463 in the locking group to move to the side away from the plug-in slot 621, so that the locking block 6463 is separated from the clamping block 6464, and the anti-loosening pre-tightening component 64 is relieved; after the locking block 6463 is separated from the clamping block 6464, the construction personnel can manipulate the quick-connect assembly 63 to drive the connecting rod 61 to move to the outside of the plug-in slot 621, thereby releasing the connection between the two adjacent wall panels 1. The self-locking component 646 enables the connecting rod 61 to automatically lock the moved position after being inserted into the plug-in slot 621. Through the dynamic contact between the clamping block 6464 and the locking block 6463 and the pre-tightening force of the locking spring 6466, the pre-tightening force of the anti-loosening pre-tightening component 64 is gradually increased to ensure the stability and reliability of the connection.

[0041] The present application also discloses a construction method of a steel plate guide wall, which is applicable to the above-mentioned steel plate guide wall, and the construction steps are as follows: S1. Repair the construction platform and use compaction equipment to compact the guide wall to be constructed, so that the soil within the guide wall is dense and the trench is prevented from collapsing.

[0042] S2. Measure, lay out and excavate guide trenches. Use a total station or GPS measuring instrument to measure and lay out. The width and depth of the guide trench should be such that the steel plate guide wall can be easily placed.

[0043] S3. Installation of the steel plate guide wall. After the excavation of the guide groove is completed, a crawler crane is used with the assistance of manual labor to lift the steel plate guide wall using the lifting rings 5 ​​reserved on the surface of the steel plate guide wall. The prefabricated wall panels 1 are lifted one by one and embedded into the guide groove, and the two connecting blocks 3 of two adjacent wall panels 1 that are close to each other are aligned.

[0044] S4, steel plate guide wall splicing, connect and fix two adjacent connection blocks 3 through the quick-connect anti-loosening mechanism 6, and apply anti-loosening pre-tightening force, and then install the wall panels 1 one by one to form a continuous steel guide wall body. The top surface of the steel guide wall body is 50mm to 100mm higher than the ground to prevent surface water from flowing into the guide wall and avoid mud dilution to maintain the performance of the mud. At the same time, the inner wall surface of the steel plate guide wall should be vertical, and the net distance of the inner wall surface should be greater than the design thickness of the underground continuous wall by 40mm to 60mm, providing an accurate construction benchmark for the trenching machinery and reducing construction deviations.

[0045] S5. Reinforce the steel plate guide wall by driving anchor piles into the anchor holes reserved on the surface of the steel plate guide wall to fix the steel plate guide wall, and then backfill soil on one side of the steel guide wall main body leg 2 to compact the steel guide wall main body.

[0046] S6. Trench construction: After the installation and reinforcement of the steel plate guide wall is completed, continuous wall trench construction is carried out to avoid disturbing the steel guide trench during construction.

[0047] S7, pouring concrete for the underground continuous wall, pouring concrete into the pouring chamber formed between the two sets of steel guide wall bodies, after the concrete is initially set, excavating the backfill soil on one side of the steel guide wall body support leg 2, and releasing the fixation of the quick-connect anti-loosening mechanism 6, and then dismantling the steel guide wall body for recycling.

[0048] The implementation principle of a steel plate guide wall and its construction method in the embodiment of the present application is as follows: when constructing the guide wall, first use a compaction device to compact the guide wall at the construction site to make the soil within the guide wall range dense and prevent collapse, then measure and lay out and excavate the guide groove, the width and depth of the guide groove should be suitable for easy insertion of the steel plate guide wall, then hoist and embed the prefabricated wall panels 1 into the guide groove one by one, and use measurement and layout to align the two connecting blocks 3 of the two adjacent wall panels 1 that are close to each other, then connect and fix the two adjacent connecting blocks 3 through the quick-connect anti-loosening mechanism 6, and apply an anti-loosening pre-tightening force, then install the wall panels 1 one by one to form a continuous steel guide wall body, and then backfill the soil on one side of the steel guide wall body leg 2 to compact the steel guide wall body; after the two groups of spaced steel guide wall bodies are installed, backfill the soil between the two groups of steel guide wall bodies. The concrete of the underground continuous wall is poured in the pouring chamber formed in the pouring chamber. After the concrete is initially set, the backfill soil on one side of the steel guide wall main body leg 2 is excavated, and the fixation of the quick-connect anti-loosening mechanism 6 is released, and then the steel guide wall main body can be removed for recycling; wherein the prefabricated steel wall panel 1, the connecting block 3, the quick-connect anti-loosening mechanism 6, etc. are used in combination, the steel plate guide wall can be reused, and a large amount of construction waste generated after the concrete guide wall is removed can be reduced, and the construction cost can be reduced. The modular design of the steel plate guide wall makes the installation and removal process simpler, improves the construction and removal efficiency of the guide wall, greatly shortens the construction period, and improves the construction efficiency. At the same time, the quick-connect anti-loosening mechanism 6 connects the two connecting blocks 3 close to each other of the adjacent wall panels 1, which not only realizes a quick connection, but also applies an anti-loosening pre-tightening force to the two adjacent connecting blocks 3 to ensure the firmness and stability of the connection.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel plate guide wall, characterized in that: include: The steel guide wall body is symmetrically arranged in two groups at intervals, and each group of the steel guide wall body comprises a plurality of wall panels (1) arranged in sequence, legs (2) fixed at the bottom of the wall panels (1), and connecting blocks (3) fixed at both sides of the wall panels (1) in the length direction; The quick-connect anti-loosening mechanism (6) is arranged between two adjacent wall panels (1) in the same group of steel guide wall bodies and is used to connect two adjacent connection blocks (3) of the adjacent wall panels (1) and to apply an anti-loosening pre-tightening force to the two adjacent connection blocks (3).

2. A steel plate guide wall according to claim 1, characterized in that: The quick-connect anti-loosening mechanism (6) comprises: A connecting rod (61) is slidably connected to a connecting block (3) on one side of the wall panel (1), and a plurality of the connecting rods (61) are provided, and the plurality of the connecting rods (61) are spaced apart and distributed along the height direction of the wall panel (1); A plug-in block (62) is fixedly mounted on a side of the wall panel (1) away from the connecting rod (61), wherein a plurality of plug-in slots (621) are provided in the plug-in block (62), wherein the plurality of plug-in slots (621) correspond to the plurality of connecting rods (61) one by one, and the connecting rods (61) can be plugged into corresponding plug-in slots (621); A quick-connect assembly (63) is disposed between the wall panel (1) and the plurality of connecting rods (61) and is used to synchronously drive the plurality of connecting rods (61) to be plugged into corresponding plug-in slots (621) on one side of an adjacent wall panel (1); The anti-loosening pre-tightening component (64) is arranged between the connecting rod (61) and the wall panel (1) and is used to clamp the connecting rod (61) into the corresponding insertion groove (621) and apply a pre-tightening force to the end of the connecting rod (61) away from the corresponding insertion groove (621) so that two adjacent connecting blocks (3) are tightly fitted.

3. A steel plate guide wall according to claim 2, characterized in that: The anti-loosening pre-tightening assembly (64) comprises: A sliding sleeve (641) is slidably sleeved on the outside of the connecting rod (61); A support seat (642) is fixedly mounted on the outer side of the wall panel (1); A damping telescopic rod (643) is fixedly arranged between the sliding sleeve (641) and the supporting seat (642); A preload spring (644) is sleeved on the outside of the damping telescopic rod (643). When the connecting rod (61) is inserted into the insertion groove (621), the connecting rod (61) is stretched to the maximum relative to the sliding sleeve (641), and the preload spring (644) is in a stretched state, giving the sliding sleeve (641) a force to approach the support seat (642). The self-locking component (646) is arranged between the connecting rod (61) and the plug-in block (62) and is used to lock the position of the connecting rod (61) after it is moved in the plug-in slot (621).

4. A steel plate guide wall according to claim 3, characterized in that: The self-locking component (646) comprises: An adjusting screw (6461) is threadedly connected to the plug-in block (62) and one end of the adjusting screw extends out of the plug-in block (62); A synchronous plate (6462) is rotatably connected to the end of the adjusting screw (6461), a movable groove (622) is provided in the plug-in block (62), and the synchronous plate (6462) can be located in the movable groove (622) and move along a side close to or away from the wall panel (1); A locking group, fixedly mounted on the synchronization plate (6462), is provided in plurality along the height direction of the wall panel (1), the plurality of locking groups corresponding one to one with the plurality of connecting rods (61), and each of the locking groups comprises a plurality of locking blocks (6463) evenly spaced and arranged along the moving direction of the connecting rod (61); A clamping block (6464) is slidably connected to the connecting rod (61) along the moving direction of the vertical connecting rod (61), an end of the clamping block (6464) can extend out of the outside of the connecting rod (61), the clamping block (6464) can be clamped between two adjacent locking blocks (6463), and a chamfer (6465) is provided on one side of the clamping block (6464) close to the locking block (6463); The locking spring (6466) is fixedly arranged between the clamping block (6464) and the connecting rod (61), is always in a compressed state and gives the clamping block (6464) a force toward the outside of the connecting rod (61).

5. The steel plate guide wall according to claim 2, characterized in that: The quick-connect assembly (63) comprises: A driving rack (631) is fixedly mounted on one side of the connecting rod (61); The rotating shaft (632) is connected to the connecting block (3) for rotation in the vertical direction. A plurality of driving gears (633) corresponding to the plurality of connecting rods (61) are fixedly sleeved on the rotating shaft (632). The driving gears (633) are meshed with the driving racks (631) on the corresponding connecting rods (61).

6. A steel plate guide wall according to claim 5, characterized in that: The quick-connect assembly (63) further comprises: A hand wheel (634) is fixedly mounted on the top of the rotating shaft (632); a storage chamber (635) is provided on the top of the connecting block (3); and the hand wheel (634) is located in the storage chamber (635); The cover plate (636) is hinged to the connecting block (3) and buckled to one side of the storage chamber (635).

7. A steel plate guide wall according to any one of claims 1 to 6, characterized in that: A reinforcing rib (4) is fixedly provided between the wall panel (1) and the supporting leg (2).

8. A steel plate guide wall according to any one of claims 1 to 6, characterized in that: A hanging ring (5) is fixedly provided on the top of the wall panel (1).

9. A construction method for a steel plate guide wall, characterized in that: A steel plate guide wall applicable to any one of claims 1 to 8, wherein the construction steps are as follows: S1. Repair the construction platform and use compaction equipment to compact the guide wall to be constructed, so that the soil within the guide wall is dense and the trench is prevented from collapsing; S2. Measure, lay out and excavate the guide groove. The width and depth of the guide groove should be such that the steel plate guide wall can be easily placed. S3, hoisting the steel plate guide wall. After the guide groove is excavated, the prefabricated wall panels (1) are hoisted one by one and embedded into the guide groove, and the two connecting blocks (3) of two adjacent wall panels (1) are aligned; S4, splicing the steel plate guide wall, connecting and fixing two adjacent connection blocks (3) by means of a quick-connect anti-loosening mechanism (6), applying an anti-loosening pre-tightening force, and then installing the wall panels (1) one by one to form a continuous steel guide wall body; S5, reinforcing the steel plate guide wall by backfilling soil on one side of the steel guide wall main body support leg (2) to compact the steel guide wall main body; S6. Trenching construction: After the installation and reinforcement of the steel plate guide wall is completed, continuous wall troughing construction is carried out to avoid disturbing the steel guide trough during construction; S7, pouring concrete for the underground continuous wall, pouring concrete into the pouring chamber formed between the two sets of steel guide wall bodies, and after the concrete is initially set, excavating the backfill soil on one side of the steel guide wall body support leg (2), and releasing the fast connection anti-loosening mechanism (6), and then dismantling the steel guide wall body to achieve recycling.

10. A construction method for a steel plate guide wall according to claim 9, characterized in that: In S4, the top surface of the steel plate guide wall is 50mm to 100mm higher than the ground, the inner wall surface of the steel plate guide wall should be vertical, and the net distance of the inner wall surface is 40mm to 60mm greater than the design thickness of the underground continuous wall.

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