Steel sheet guide wall and construction method thereof

Abstract

The application 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: steel guide wall bodies which are symmetrically and intervally arranged in two groups. Each group of the steel guide wall bodies comprises a plurality of wall plates arranged in sequence, a support leg fixed at the bottom of the wall plate, and a connecting block fixed at the length direction of the two sides of the wall plate. A quick connection anti-loosening mechanism is arranged between two adjacent wall plates in the same group of steel guide wall bodies, used for connecting the two connecting blocks of the adjacent wall plates which are close to each other, and applying an anti-loosening pre-tightening force to the two adjacent connecting blocks. The application has the effects of shortening the construction period of the guide wall, reducing the installation and dismounting difficulty and cost of the guide wall, reducing construction waste, and improving the reutilization rate of the guide wall.

Description

Technical Field

[0001] This application relates to the field of guide wall construction technology, and in particular to a steel plate guide wall and its construction method. Background Technology

[0002] Guide walls are a key construction technique used by construction companies during the construction of diaphragm walls. They are temporary reinforced concrete structures erected along the centerline of the diaphragm wall, primarily serving to ensure the accurate positioning of the diaphragm wall and to withstand various static and dynamic loads during construction, such as those from the reinforcing cage, tremie pipes for concrete pouring, and trenching machines. The construction accuracy of the guide wall directly affects the construction quality of the diaphragm wall; therefore, it must be strictly controlled during the design and construction processes.

[0003] Guide walls commonly come in "L" or inverted "L" shapes, with the appropriate form chosen based on different soil conditions. Currently, the traditional method for constructing guide walls generally uses concrete. Concrete guide walls require excavation, reinforcement fabrication and installation, formwork erection, and concrete pouring. After pouring, a certain curing time is needed. During the construction of the concrete guide wall, the toe of the wall should be inserted into the undisturbed original soil layer to ensure its stability and load-bearing capacity. The entire construction cycle of concrete guide walls is long, installation and dismantling are complex and difficult, and the guide walls cannot be reused, resulting in high costs. Demolition also generates a large amount of construction waste, which is detrimental to the environment. Summary of the Invention

[0004] In order to shorten the construction cycle of the guide wall, reduce the difficulty and cost of installation and dismantling of the guide wall, reduce construction waste, and improve the reusability of the guide wall, this application provides a steel plate guide wall and its construction method.

[0005] Firstly, this application provides a steel plate guide wall and its construction method, which adopts the following technical solution:

[0006] A steel plate guide wall, comprising:

[0007] The steel guide wall body is arranged in two symmetrical and spaced groups. Each group of the steel guide wall body includes multiple wall panels arranged in sequence, support legs fixed at the bottom of the wall panels, and connecting blocks fixed on both sides of the length direction of the wall panels.

[0008] The quick-connect anti-loosening mechanism is installed between two adjacent wall panels in the same group of steel guide wall bodies. It is used to connect two connecting blocks of adjacent wall panels that are close to each other, and to apply anti-loosening pre-tightening force to the two adjacent connecting blocks.

[0009] By adopting the technical scheme, when the guide wall is constructed, firstly, the compacting equipment is used to compact the position to be constructed of the guide wall, so that the soil in the guide wall is compacted to prevent the groove from collapsing, then the measurement and setting out and the excavation of the guide groove are performed, the width and depth of the guide groove are preferably suitable for the easy placement of the steel plate guide wall, then the prefabricated wall plates are hoisted and embedded into the guide groove one by one, and the two connecting blocks of the adjacent two wall plates are aligned by the measurement and setting out, then the two adjacent connecting blocks are connected and fixed by the quick-connection anti-loosening mechanism, and the anti-loosening pre-tightening force is applied, then the wall plates are installed one by one to form the continuous steel guide wall body, then the backfill soil is backfilled to the side of the steel guide wall body leg to compact the steel guide wall body, and the concrete of the underground continuous wall is poured into the pouring cavity formed between the two groups of steel guide wall bodies, after the initial setting of the concrete, the backfill soil on the side of the steel guide wall body leg is excavated, and the fixing of the quick-connection anti-loosening mechanism is released, then the steel guide wall body is removed to realize the recycling; the prefabricated steel wall plate, the connecting block and the quick-connection anti-loosening mechanism are used in cooperation, so that the steel plate guide wall can be reused, a large amount of construction waste generated after the concrete guide wall is removed can be reduced, the construction cost is reduced, the modular design of the steel plate guide wall makes the installation and removal process simpler, the construction and removal efficiency of the guide wall is improved, the construction period is greatly shortened, the construction efficiency is improved, the two connecting blocks of the adjacent wall plates are connected by the quick-connection anti-loosening mechanism, the quick connection is realized, the anti-loosening pre-tightening force is applied to the two adjacent connecting blocks, and the firmness and stability of the connection are ensured.

[0010] Optionally, the quick-connection anti-loosening mechanism comprises:

[0011] The connecting rods are slidably connected to the connecting blocks on one side of the wall plate, and a plurality of connecting rods are arranged.

[0012] The insertion blocks are fixedly arranged on the side of the wall plate away from the connecting rods, a plurality of insertion grooves are arranged in the insertion blocks, the plurality of insertion grooves correspond to the plurality of connecting rods one by one, and the connecting rods can be inserted into the corresponding insertion grooves.

[0013] The quick-connection assembly is arranged between the wall plate and the plurality of connecting rods, and is used to synchronously drive the plurality of connecting rods to be inserted into the corresponding insertion grooves on one side of the adjacent wall plate.

[0014] The anti-loosening pre-tightening assembly is arranged between the connecting rod and the wall plate, and is used to clamp the connecting rod into the corresponding insertion groove and apply a pre-tightening force to the end of the connecting rod away from the corresponding insertion groove, so that the two adjacent connecting blocks are tightly attached.

[0015] By adopting the above technical scheme, when the two adjacent connecting blocks are connected and fixed through the quick connection anti-loose mechanism, first, the connecting blocks on the two adjacent wallboards are aligned, then the quick connection assembly synchronously drives the plurality of connecting rods to move into the corresponding insertion slots on the side close to the adjacent wallboard, in the process of inserting the connecting rod into the corresponding insertion slot, the anti-loose pre-tightening assembly gradually clamps the connecting rod into the insertion slot, and applies a pre-tightening force to the end of the connecting rod away from the corresponding insertion slot, so that the two adjacent connecting blocks are tightly fitted, and the anti-loose pre-tightening effect is achieved, so that the quick connection of the two adjacent connecting blocks can be realized; when the construction personnel needs to release the connection and fixation of the two adjacent connecting blocks, first, the anti-loose pre-tightening assembly releases the fixation of the connecting rod by the insertion slot, then the quick connection assembly synchronously drives the plurality of connecting rods to move away from the corresponding insertion slots on the side away from the adjacent wallboard, so that the connecting rod and the insertion slot are separated; wherein through the cooperation of the quick connection assembly, the anti-loose pre-tightening assembly and the insertion block, the connection process of the adjacent wallboards can be quickly completed, the dislocation and movement between the two adjacent connecting blocks are not easy to be affected by construction vibration, etc., so that the gap between the two is caused, the firmness and stability of the connection of the two adjacent connecting blocks are improved, the subsequent mud pouring is prevented from being lost, the overall closed groove section is formed, the seepage interception and anti-seepage effects are achieved, and the construction quality and building safety are improved.

[0016] Optionally, the anti-loose pre-tightening assembly comprises:

[0017] The sliding sleeve is sleeved outside the connecting rod;

[0018] The support seat is fixedly arranged outside the wallboard;

[0019] The damping telescopic rod is fixedly arranged between the sliding sleeve and the support seat;

[0020] The pre-tightening spring is sleeved outside the damping telescopic rod, after the connecting rod is inserted into the insertion slot, the connecting rod is elongated to the maximum relative to the sliding sleeve, and the pre-tightening spring is in a stretched state and gives the sliding sleeve a force close to the support seat;

[0021] The self-locking component is arranged between the connecting rod and the insertion block, and is used for locking the position of the connecting rod after moving into the insertion slot.

[0022] By adopting the above technical scheme, before the connecting rod is inserted into the insertion slot, the pre-tightening spring is in a natural state and is not stretched, when the connecting rod begins to be inserted into the insertion slot of the adjacent wallboard, the connecting rod is elongated to the maximum relative to the sliding sleeve, the connecting rod cannot move relative to the sliding sleeve, at this time, the pre-tightening spring begins to be stretched, when the connecting rod continues to be inserted into the insertion slot, the connecting rod drives the sliding sleeve to exert a pulling force on the pre-tightening spring, when the pulling force increases to the preset tensioning force, the self-locking component automatically locks the position of the connecting rod, so that the pre-tightening spring always gives the sliding sleeve a pulling force in the direction of the support base, thereby ensuring the close fit between the two adjacent connecting blocks; wherein the damping telescopic rod cooperates with the pre-tightening spring to absorb the vibration or impact received by the wallboard after the connecting rod is inserted into the insertion slot and locked, so that the connecting rod is not easy to loosen due to external force, and the close connection between the connecting rod and the insertion slot is ensured, and the stability and reliability of the connection are improved.

[0023] Optionally, the self-locking component comprises:

[0024] An adjusting screw is threadedly connected to the insertion block and has one end extending out of the outside of the insertion block.

[0025] A synchronization plate is rotationally connected to the end of the adjusting screw, a moving slot is formed in the insertion block, and the synchronization plate can be located in the moving slot and moved along the side close to or away from the wallboard.

[0026] A locking group is fixedly arranged on the synchronization plate and is arranged in the height direction of the wallboard, a plurality of the locking groups correspond to a plurality of the connecting rods one by one, and each of the locking groups comprises a plurality of locking blocks uniformly arranged in the moving direction of the connecting rod.

[0027] A clamping block is slidingly connected to the connecting rod in the direction perpendicular to the moving direction of the 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 the side close to the locking block of the clamping block is provided with a chamfer.

[0028] A locking spring is fixedly arranged between the clamping block and the connecting rod and is always in a compressed state and gives the clamping block a force in the direction of the outside of the connecting rod.

[0029] By adopting the above technical scheme, when the connecting rod begins to be inserted into the insertion slot of the adjacent wallboard, the end of the clamping block is retracted into the connecting rod under the guidance of the chamfer, and as the connecting rod is further inserted, the clamping block moves between the two adjacent locking blocks, at this time, the clamping block is stretched out of the connecting rod under the action of the locking spring and is clamped between the two adjacent locking blocks, forming a preliminary locking state; when the connecting rod continues to move into the insertion slot, the clamping block is retracted into the connecting rod again under the action of the chamfer, and as the connecting rod is further inserted, the clamping block moves between the two adjacent locking blocks again and is stretched out under the action of the locking spring and is clamped between the locking blocks, this process will be repeated as the connecting rod is further inserted until the pre-tightening tension between the pre-tightening spring and the damping telescopic rod reaches the required pre-tightening force; when it is necessary to release the fixation of the end of the connecting rod, the construction personnel rotates the adjusting screw to drive the synchronous plate to move, the movement of the synchronous plate causes the plurality of locking blocks in the locking group to move away from the insertion slot, so that the locking blocks are separated from the clamping blocks, and the pressure of the anti-loosening pre-tightening assembly is released; after the locking blocks are separated from the clamping blocks, the construction personnel can control the quick connection assembly to drive the connecting rod to move to the outside of the insertion slot, so as to release the connection between the two adjacent wallboards; wherein the self-locking part enables the connecting rod to be automatically locked after being inserted into the insertion slot, and the pre-tightening force of the anti-loosening pre-tightening assembly is gradually increased through the dynamic contact between the clamping block and the locking block and the pre-tightening force of the locking spring, so as to ensure the stability and reliability of the connection.

[0030] Optionally, the quick connection assembly comprises:

[0031] The driving rack is fixedly arranged on one side of the connecting rod.

[0032] The rotating shaft is rotatably connected in the connecting block in the vertical direction, a plurality of driving gears corresponding to the plurality of connecting rods are fixedly arranged on the rotating shaft, and the driving gears are in mesh with the driving racks on the corresponding connecting rods.

[0033] By adopting the above technical scheme, when it is necessary to insert the connecting rod into the corresponding insertion slot on one side of the adjacent wallboard, the rotating shaft is first driven to rotate, the rotating shaft drives the driving gears to rotate, and then the driving gears drive the driving racks and the connecting rod to move, so that the connecting rod is inserted into the corresponding insertion slot on one side of the adjacent wallboard; wherein the rotating shaft can synchronously drive the plurality of driving gears to rotate, so as to realize the synchronous movement of the plurality of connecting rods and ensure that all the connecting rods are simultaneously inserted into the corresponding insertion slots, thereby improving the efficiency and consistency of the connection.

[0034] Optionally, the quick connection assembly further comprises:

[0035] The hand wheel is fixedly arranged on the top of the rotating shaft, a storage chamber is formed in the top of the connecting block, and the hand wheel is located in the storage chamber.

[0036] The cover plate is hinged to the connecting block and buckled to one side of the storage chamber.

[0037] By adopting the above technical scheme, the construction personnel can drive the rotating shaft to rotate by rotating the hand wheel, and then drive the driving gear and the connecting rod to move. In the operation process, the rotating shaft does not need to be forced by using a wrench or other auxiliary tools, the operation convenience is improved, and the cover plate is buckled to the top of the storage chamber and used for closing the storage chamber. When the hand wheel is not in use, the cover plate can be buckled tightly to prevent impurities such as soil and dust from entering the storage chamber, and to protect the internal driving gear, rotating shaft and other components.

[0038] Optionally, a reinforcing rib plate is fixed between the wall plate and the leg.

[0039] By adopting the above technical scheme, the reinforcing rib plate increases the connection strength between the wall plate and the leg, disperses and transmits the load borne by the wall plate, and reduces the deformation of the wall plate and the leg when they are under stress.

[0040] Optionally, a lifting ring is fixed at the top of the wall plate.

[0041] By adopting the above technical scheme, when the wall plate needs to be adjusted in position, the lifting ring provides a lifting point for the hoisting of the wall plate, which facilitates the operation of the construction personnel.

[0042] In a second aspect, the application also provides a construction method of the steel plate guide wall, which is suitable for the steel plate guide wall described above, and the construction steps are as follows:

[0043] S1, construction platform finishing, using compaction equipment to compact the position to be constructed of the guide wall, so that the soil in the guide wall range is compacted to prevent the trench from collapsing;

[0044] S2, measurement and setting out, and excavation of the guide trench, the width and depth of the guide trench are preferably suitable for easy placement of the steel plate guide wall;

[0045] S3, hoisting of the steel plate guide wall, after the guide trench is excavated, the prefabricated wall plates are hoisted and embedded in the guide trench one by one, and the two connecting blocks of the adjacent two wall plates are aligned;

[0046] S4, splicing of the steel plate guide wall, the two adjacent connecting blocks are connected and fixed through the quick connection anti-loose mechanism, and the anti-loose pre-tightening force is applied, and then the wall plates are installed one by one to form a continuous steel guide wall main body;

[0047] S5, reinforcement of the steel plate guide wall, backfilling soil to the side of the leg of the steel guide wall main body to compact the steel guide wall main body;

[0048] S6, trench construction, after the installation and reinforcement construction of the steel plate guide wall is completed, the continuous wall trench construction is carried out, and the steel guide trench is avoided during construction;

[0049] S7, pouring concrete of the underground continuous wall, pouring concrete into the pouring cavity formed between the two groups of steel guide wall bodies, after the initial setting of the concrete, excavating the backfill soil on one side of the steel guide wall body support leg, and releasing the fixation of the quick-connection anti-loosening mechanism, then removing the steel guide wall body to realize recycling.

[0050] Optionally, in S4, the top surface of the steel plate guide wall is 50mm-100mm higher than the ground, and 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-60mm.

[0051] By adopting the above technical scheme, the top surface of the guide wall is 50mm-100mm higher than the ground, which can effectively prevent surface water from flowing into the guide wall, avoid dilution of the mud, maintain the performance of the mud, and the guide wall serves as a construction guide to provide accurate construction reference for the trenching machine, improve construction efficiency, and reduce construction deviation.

[0052] In summary, the present application includes at least one of the following beneficial technical effects:

[0053] 1. By using the prefabricated steel wall plate, connecting block, quick-connection anti-loosening mechanism and the like in cooperation, the steel plate guide wall can be reused, a large amount of construction waste generated after the concrete guide wall is removed can be reduced, the construction cost can be reduced, and the modular design of the steel plate guide wall makes the installation and removal process simpler, improves the efficiency of the guide wall construction and removal, greatly shortens the construction period, improves the construction efficiency, and the quick-connection anti-loosening mechanism connects the two connecting blocks of the adjacent wall plates, not only realizes quick connection, but also applies anti-loosening pre-tightening force to the two adjacent connecting blocks, ensuring the firmness and stability of the connection;

[0054] 2. In the quick-connection anti-loosening mechanism, the quick-connection assembly, the anti-loosening pre-tightening assembly and the plug-in block cooperate to quickly complete the connection process of the adjacent wall plates, prevent the two adjacent connecting blocks from being dislocated or moved due to construction vibration and the like, cause a gap between the two, improve the firmness and stability of the connection of the two adjacent connecting blocks, prevent subsequent mud pouring from leaking, form an overall sealed slot section, play a role in seepage interception and anti-seepage, and improve construction quality and building safety;

[0055] 3. In the quick-connection assembly, the rotating shaft can synchronously drive a plurality of drive gears to rotate, thereby realizing synchronous movement of a plurality of connecting rods, ensuring that all connecting rods are simultaneously plugged into corresponding plug-in slots, and improving the efficiency and consistency of the connection;

[0056] 4. In the anti-loosening pre-tightening assembly, the damping telescopic rod cooperates with the pre-tightening spring to enable the connecting rod to be inserted into the plug-in slot and locked, absorb vibration or impact received by the wall plate, prevent the connecting rod from being loosened due to external force, ensure the tight connection between the connecting rod and the plug-in slot, and improve the stability and reliability of the connection;

[0057] 5. The self-locking component enables the connecting rod to automatically lock the position after moving after being inserted into the insertion slot, and gradually increases the pre-tightening force of the anti-loose pre-tightening assembly through dynamic contact between the clamping block and the locking block and the pre-tightening force of the locking spring, to ensure the stability and reliability of the connection. BRIEF DESCRIPTION OF DRAWINGS

[0058] Figure 1 is a structural schematic diagram of a steel plate guide wall in the application;

[0059] Figure 2 is a partial structural schematic diagram of a steel plate guide wall;

[0060] Figure 3 is a partial sectional view schematic diagram of a steel plate guide wall;

[0061] Figure 4 is a partial sectional view schematic diagram of a quick connection anti-loose mechanism;

[0062] Figure 5 is a partial enlarged structural schematic diagram of part A in Figure 4

[0063] BRIEF DESCRIPTION OF DRAWINGS1. wall plate; 2. leg; 3. connecting block; 4. reinforcing rib plate; 5. lifting ring; 6. quick connection anti-loose mechanism; 61. connecting rod; 62. insertion block; 621. insertion slot; 622. moving slot; 63. quick connection assembly; 631. driving rack; 632. rotating shaft; 633. driving gear; 634. hand wheel; 635. storage chamber; 636. cover plate; 64. anti-loose pre-tightening assembly; 641. sliding sleeve; 642. support seat; 643. damping telescopic rod; 644. pre-tightening spring; 645. soil retaining cover; 646. self-locking component; 6461. adjusting screw; 6462. synchronization plate; 6463. locking block; 6464. clamping block; 6465. chamfer; 6466. locking spring. DETAILED DESCRIPTION

[0064] The following will be described in detail in combination with the accompanying drawings. Figures 1-5 The application will be further described in detail.

[0065] The embodiments of the application disclose a steel plate guide wall. Referring to Figure 1 and Figure 2The steel plate guide wall comprises two groups of symmetrically and spaced steel guide wall bodies, each group of steel guide wall bodies comprises a plurality of wall plates 1 arranged in sequence, a support leg 2 fixed at the bottom of the wall plate 1, and a connecting block 3 fixed at both sides of the wall plate 1 in the length direction, wherein a reinforcing rib plate 4 is fixed between the wall plate 1 and the support leg 2, the reinforcing rib plate 4 is used to increase the connection strength between the wall plate 1 and the support leg 2, disperse and transfer the load borne by the wall plate 1, and reduce the deformation of the wall plate 1 and the support leg 2 when bearing stress. A lifting ring 5 is further fixed at the top of the wall plate 1, and the lifting ring 5 is used to provide a lifting point for hoisting the wall plate 1. A quick connection anti-loosening mechanism 6 is arranged between two adjacent wall plates 1 in the same group of steel guide wall bodies, and the quick connection anti-loosening mechanism 6 is used to connect the two connecting blocks 3 of the adjacent wall plates 1 close to each other, and to apply an anti-loosening pre-tightening force to the two adjacent connecting blocks 3.

[0066] When the guide wall is constructed, first, a compaction device is used to compact the position to be constructed of the guide wall, so that the soil in the range of the guide wall is compacted to prevent trench collapse. Then, measurement and setting out and excavation of a guide trench are performed. The width and depth of the guide trench are preferably suitable for easy placement of the steel plate guide wall. Then, the prefabricated wall plates 1 are hoisted and embedded in the guide trench one by one, and the two connecting blocks 3 of the adjacent two wall plates 1 close to each other are aligned by measurement and setting out. Then, the two adjacent connecting blocks 3 are connected and fixed by the quick connection anti-loosening mechanism 6, and an anti-loosening pre-tightening force is applied. Then, the wall plates 1 are installed one by one to form a continuous steel guide wall body. Then, the backfill soil on one side of the support leg 2 of the steel guide wall body is compacted to complete the construction of the steel plate guide wall.

[0067] After the two groups of spaced steel guide wall bodies are installed, the concrete of the underground continuous wall is poured into the pouring cavity formed between the two groups of steel guide wall bodies. After the concrete is initially set, the backfill soil on one side of the support leg 2 of the steel guide wall body is excavated, and the fixing of the quick connection anti-loosening mechanism 6 is released. Then, the steel guide wall body can be removed for recycling. The prefabricated steel wall plate 1, connecting block 3, and quick connection anti-loosening mechanism 6 are used in cooperation, so that the steel plate guide wall can be reused, 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 the quick connection anti-loosening mechanism 6 connects the two connecting blocks 3 of the adjacent wall plates 1 close to each other, not only realizes quick connection, but also can apply an anti-loosening pre-tightening force to the two adjacent connecting blocks 3, to ensure the firmness and stability of the connection.

[0068] In some embodiments, reference is made to Figure 3 and Figure 4The quick connection anti-loosening mechanism 6 comprises a plurality of connecting rods 61 slidably connected to one side of the wallboard 1, and preferably two connecting rods 61 are spaced apart along the height direction of the wallboard 1. The wallboard 1 is fixed with a plug-in block 62 on the side away from the connecting rods 61 along the length direction of the wallboard 1. The plug-in block 62 is provided with a plurality of plug-in slots 621 corresponding to the connecting rods 61, and the connecting rods 61 can be plugged into the corresponding plug-in slots 621. A quick connection assembly 63 is arranged between the wallboard 1 and the connecting rods 61, and the quick connection assembly 63 is used to synchronously drive the connecting rods 61 to be plugged into the corresponding plug-in slots 621 on the side of the adjacent wallboard 1. An anti-loosening pre-tightening assembly 64 is further arranged between the connecting rods 61 and the wallboard 1, and the anti-loosening pre-tightening assembly 64 is used to clamp the connecting rods 61 into the corresponding plug-in slots 621 and simultaneously apply a pre-tightening force to the end of the connecting rods 61 away from the corresponding plug-in slots 621, so that the two adjacent connecting blocks 3 are tightly attached.

[0069] When the two adjacent connecting blocks 3 are connected and fixed by the quick connection anti-loosening mechanism 6, first, the connecting blocks 3 on the two adjacent wallboards 1 are aligned, and then the quick connection assembly 63 is used to synchronously drive the connecting rods 61 to move towards the corresponding plug-in slots 621 on the side of the adjacent wallboard 1. During the process of plugging the connecting rods 61 into the corresponding plug-in slots 621, the anti-loosening pre-tightening assembly 64 gradually clamps the connecting rods 61 into the plug-in slots 621 and applies a pre-tightening force to the end of the connecting rods 61 away from the corresponding plug-in slots 621, so that the two adjacent connecting blocks 3 are tightly attached and the effect of anti-loosening pre-tightening is achieved, thereby realizing the quick connection of the two adjacent connecting blocks 3.

[0070] When the construction personnel need to release the connection and fixation of the two adjacent connecting blocks 3, first, the anti-loosening pre-tightening assembly 64 is used to release the fixation of the connecting rods 61 by the plug-in slots 621, and then the quick connection assembly 63 is used to synchronously drive the connecting rods 61 to move away from the corresponding plug-in slots 621 on the side of the adjacent wallboard 1, so that the connecting rods 61 are separated from the plug-in slots 621. Through the cooperation of the quick connection assembly 63, the anti-loosening pre-tightening assembly 64, and the plug-in block 62, the connection process of the adjacent wallboards 1 can be quickly completed, and the two adjacent connecting blocks 3 are not easily dislocated or moved due to construction vibration, so as to prevent the generation of gaps between the two adjacent connecting blocks 3, improve the firmness and stability of the connection of the two adjacent connecting blocks 3, prevent subsequent mortar pouring from leaking, and thus achieve the effects of seepage interception and anti-seepage, thereby improving the construction quality and building safety.

[0071] In some embodiments, with reference to Figure 3 and Figure 4The fast-connection assembly 63 comprises a driving rack 631 fixed to one side of the connecting rod 61, a rotating shaft 632 rotatably connected in the vertical direction in the connecting block 3, a plurality of driving gears 633 fixedly sleeved on the rotating shaft 632 and corresponding to the plurality of connecting rods 61, and the driving gears 633 are in mesh with the driving rack 631 on the corresponding connecting rod 61. A hand wheel 634 is fixed to the top of the rotating shaft 632, a storage chamber 635 is formed in the top of the connecting block 3, and the hand wheel 634 is located in the storage chamber 635. A cover plate 636 is hingedly connected to the connecting block 3 and buckled to one side of the storage chamber 635.

[0072] When it is needed to insert the connecting rod 61 into the corresponding insertion slot 621 on one side of the adjacent wallboard 1, the hand wheel 634 is first driven to rotate, the rotating shaft 632 is driven to rotate by the hand wheel 634, the driving gears 633 are driven to rotate by the rotating shaft 632, and then the driving rack 631 and the connecting rod 61 are driven to move by the driving gears 633, so that the connecting rod 61 is inserted into the corresponding insertion slot 621 on one side of the adjacent wallboard 1. The rotating shaft 632 can synchronously drive the plurality of driving gears 633 to rotate, thereby realizing the synchronous movement of the plurality of connecting rods 61, ensuring that all the connecting rods 61 are simultaneously inserted into the corresponding insertion slots 621, and improving the efficiency and consistency of the connection. In the operation process, the rotating shaft 632 does not need to be forced by a wrench or other auxiliary tools, which improves the convenience of the operation. Meanwhile, the cover plate 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 plate 636 can be buckled tightly to prevent impurities such as soil and dust from entering the storage chamber 635, thereby protecting the internal driving gears 633 and the rotating shaft 632.

[0073] In some embodiments, referring to Figure 3 and Figure 4 The anti-loosening pre-tightening assembly 64 comprises a sliding sleeve 641 slidably sleeved outside the connecting rod 61, a support seat 642 fixed to the outside of the wallboard 1, and a damping telescopic rod 643 fixed between the sliding sleeve 641 and the support seat 642. A pre-tightening spring 644 is sleeved outside the damping telescopic rod 643. After the connecting rod 61 is inserted into the insertion slot 621, the connecting rod 61 is elongated 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 close to the support seat 642. A soil cover 645 is fixed to one side of the support seat 642 and sleeved outside the sliding sleeve 641. A self-locking component 646 is arranged between the connecting rod 61 and the insertion block 62 and is used to lock the position of the connecting rod 61 after being moved in the insertion slot 621.

[0074] Before the connecting rod 61 is inserted into the insertion slot 621, the pre-tightening spring 644 is in a natural state without being stretched. When the connecting rod 61 starts to be inserted into the insertion slot 621 of the adjacent wallboard 1, the connecting rod 61 is elongated 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 pre-tightening spring 644 starts 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 exert a pulling force on the pre-tightening spring 644. When the pulling force increases to a preset tensioning force, the self-locking component 646 automatically locks the position of the connecting rod 61, so that the pre-tightening spring 644 always gives the sliding sleeve 641 a pulling force towards the support base 642, thereby ensuring the close fit between the two adjacent connecting blocks 3. The damping telescopic rod 643 cooperates with the pre-tightening spring 644 to absorb the vibration or impact received by the wallboard 1 after the connecting rod 61 is inserted into the insertion slot 621 and locked, so that the connecting rod 61 is not easy to loosen due to external force, and the close connection between the connecting rod 61 and the insertion slot 621 is ensured, thereby improving the stability and reliability of the connection.

[0075] In some embodiments, with reference to Figure 4 and Figure 5 The self-locking component 646 includes an adjusting screw 6461 threadedly connected to the insertion block 62. The adjusting screw 6461 is, for example, extended out of the insertion block 62 and perpendicular to the wallboard 1. The adjusting screw 6461 is rotationally connected to a synchronization plate 6462 at an end thereof. The insertion block 62 is provided with a moving slot 622. The synchronization plate 6462 is movable in the moving slot 622 and can move towards or away from the wallboard 1. The synchronization plate 6462 is fixedly provided with a plurality of locking groups spaced apart along the height direction of the wallboard 1. The plurality of locking groups correspond one-to-one to the plurality of connecting rods 61. Each locking group includes a plurality of locking blocks 6463 uniformly spaced apart along the moving direction of the connecting rod 61. The connecting rod 61 is slidably connected to a clamping block 6464 in the moving direction perpendicular to the connecting rod 61. The clamping block 6464 is extended out of the connecting rod 61 at an end thereof. The clamping block 6464 can be clamped between two adjacent locking blocks 6463. The clamping block 6464 is provided with a chamfer 6465 on a side close to the locking block 6463. A locking spring 6466 is fixedly arranged 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 towards the outside of the connecting rod 61.

[0076] When the connecting rod 61 begins to be inserted into the insertion slot 621 of the adjacent wallboard 1, the end of the clamping block 6464 is retracted into the connecting rod 61 under the guidance of the chamfer 6465, and as the connecting rod 61 is further inserted, the clamping block 6464 moves between the two adjacent locking blocks 6463, at which time the clamping block 6464 is extended outside the connecting rod 61 under the action of the locking spring 6466 and clamped between the two adjacent locking blocks 6463, forming a preliminary locking state. When the connecting rod 61 continues to move into the insertion slot 621, the clamping block 6464 is retracted into the connecting rod 61 again under the action of the chamfer 6465, and as the connecting rod 61 is further inserted, the clamping block 6464 is moved between the two adjacent locking blocks 6463 again and is extended under the action of the locking spring 6466, clamped between the locking blocks 6463. This process will be repeated as the connecting rod 61 is further inserted until the pre-tightening tension between the pre-tightening spring 644 and the damping telescopic rod 643 reaches the required pre-tightening force.

[0077] 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 plurality of locking blocks 6463 in the locking group to move away from the insertion slot 621, so that the locking blocks 6463 are separated from the clamping blocks 6464, and the pressure on the anti-loosening pre-tightening assembly 64 is released; after the locking blocks 6463 are separated from the clamping blocks 6464, the construction personnel can control the quick connecting assembly 63 to drive the connecting rod 61 to move to the outside of the insertion slot 621, thereby releasing the connection between the two adjacent wallboards 1. The self-locking component 646 enables the connecting rod 61 to be automatically locked at the moved position after being inserted into the insertion slot 621, and through the dynamic contact between the clamping blocks 6464 and the locking blocks 6463 and the pre-tightening force of the locking spring 6466, the pre-tightening force of the anti-loosening pre-tightening assembly 64 is gradually increased, ensuring the stability and reliability of the connection.

[0078] The application also discloses a construction method of the steel plate guide wall, which is suitable for the steel plate guide wall and has the following construction steps:

[0079] S1, construction platform trimming, compaction equipment is used to compact the to-be-constructed position of the guide wall, so that the soil in the guide wall range is compacted to prevent groove collapse.

[0080] S2, measurement and setting out and excavation of a guide trench, full station instrument or GPS measurement instrument is used for measurement and setting out, and the width and depth of the guide trench are preferably suitable for easy placement of the steel plate guide wall.

[0081] S3, steel plate guide wall hoisting, after the guide groove is excavated, the steel plate guide wall is hoisted by using the reserved lifting ring 5 on the surface of the steel plate guide wall with the aid of a crawler crane and manual work, the prefabricated wall plate 1 is hoisted and embedded into the guide groove one by one, and the two connecting blocks 3 of the two adjacent wall plates 1 are aligned.

[0082] S4, steel plate guide wall splicing, the two adjacent connecting blocks 3 are connected and fixed by the quick-connection anti-loosening mechanism 6, and the anti-loosening pre-tightening force is applied, then the wall plates 1 are installed one by one to form a continuous steel guide wall body. The top surface of the steel guide wall body is higher than the ground by 50mm to 100mm, which is used to prevent surface water from flowing into the guide wall and to avoid dilution of the mud 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 is greater than the design thickness of the underground continuous wall by 40mm to 60mm, which provides an accurate construction reference for the trenching machine and reduces the construction deviation.

[0083] S5, steel plate guide wall reinforcement, anchor piles are nailed into the anchor holes reserved on the surface of the steel plate guide wall to fix the steel plate guide wall, then the backfill soil is compacted on one side of the steel guide wall body leg 2 to press the steel guide wall body.

[0084] S6, trenching construction, after the steel plate guide wall installation and reinforcement construction is completed, the continuous wall trenching construction is carried out, and the steel guide trench is avoided to be disturbed during construction.

[0085] S7, pouring concrete for the underground continuous wall, pouring concrete into the pouring cavity formed between the two steel guide wall bodies, after the concrete is initially set, the backfill soil on one side of the steel guide wall body leg 2 is excavated, and the fixation of the quick-connection anti-loosening mechanism 6 is released, then the steel guide wall body is removed to realize recycling.

[0086] The implementation principle of the steel plate guide wall and the construction method thereof according to the embodiment of the present application is as follows: when the guide wall is constructed, first, the position to be constructed of the guide wall is compacted by using a compaction device, so that the soil in the range of the guide wall is compacted to prevent the groove from collapsing, then the measurement and lofting and the excavation of the guide groove are performed, the width and depth of the guide groove are preferably capable of meeting the requirement that the steel plate guide wall is easy to be placed, then the prefabricated wall plates 1 are hoisted and embedded into the guide groove one by one, and the two connecting blocks 3 of the two adjacent wall plates 1 that are close to each other are aligned by using the measurement and lofting, then the two adjacent connecting blocks 3 are connected and fixed by using the quick-connection anti-loosening mechanism 6, and the anti-loosening pre-tightening force is applied, then the wall plates 1 are installed one by one to form a continuous steel guide wall main body, then the backfill soil is backfilled to the side of the steel guide wall main body leg 2 to compact the steel guide wall main body, and the construction is completed; after the two groups of spaced steel guide wall main bodies are constructed, the concrete of the underground continuous wall is poured into the pouring cavity formed between the two groups of steel guide wall main bodies, after the concrete is initially cured, the backfill soil on the side of the steel guide wall main body leg 2 is excavated, and the fixing of the quick-connection anti-loosening mechanism 6 is released, then the steel guide wall main body is removed to realize the recycling; the prefabricated steel wall plate 1, the connecting block 3 and the quick-connection anti-loosening mechanism 6 are used in cooperation, so that the steel plate guide wall can be reused, a large amount of construction waste generated after the concrete guide wall is removed can be reduced, the construction cost is reduced, the modular design of the steel plate guide wall makes the installation and removal process simpler, the construction and removal efficiency of the guide wall is improved, the construction period is greatly shortened, the construction efficiency is improved, and the two connecting blocks 3 that are close to each other of the adjacent wall plates 1 are connected by using the quick-connection anti-loosening mechanism 6, so that the quick connection is realized, the anti-loosening pre-tightening force is applied to the two adjacent connecting blocks 3, and the firmness and stability of the connection are ensured.

[0087] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A steel plate guide wall characterized by, The utility model relates to a steel guide wall body, two groups of symmetric and interval arrangement, each group of steel guide wall body includes a plurality of in turn arranged wallboard (1), the supporting leg (2) of being fixed at the bottom of wallboard (1) and the connecting block (3) of being fixed at the length direction both sides of wallboard (1); Quick connection anti-loose mechanism (6) is arranged between two adjacent wallboards (1) in the same group of steel guide wall body, and is used for connecting the two connecting blocks (3) of the adjacent wallboard (1) and applying anti-loose pre-tightening force to the two adjacent connecting blocks (3); The quick connection anti-loose mechanism (6) comprises: Connecting rod (61) is connected to the connecting block (3) on one side of the wallboard (1) in a sliding manner, and a plurality of connecting rods (61) are arranged at intervals along the height direction of the wallboard (1); The plug-in block (62) is fixed on the side of the wallboard (1) away from the connecting rod (61), and a plurality of plug-in grooves (621) are formed in the plug-in block (62), and the plurality of plug-in grooves (621) correspond to the plurality of connecting rods (61) one by one, and the connecting rod (61) can be inserted into the corresponding plug-in groove (621); The quick connection assembly (63) is arranged between the wallboard (1) and the plurality of connecting rods (61), and is used for synchronously driving the plurality of connecting rods (61) to be inserted into the corresponding plug-in groove (621) on one side of the adjacent wallboard (1); The anti-loose pre-tightening assembly (64) is arranged between the connecting rod (61) and the wallboard (1), and is used for clamping the connecting rod (61) into the corresponding plug-in groove (621) and simultaneously applying pre-tightening force to the end of the connecting rod (61) away from the corresponding plug-in groove (621) to make the two adjacent connecting blocks (3) tightly fit; The anti-loose pre-tightening assembly (64) comprises: The sliding sleeve (641) is sleeved on the outside of the connecting rod (61); The support seat (642) is fixed on the outside of the wallboard (1); The damping telescopic rod (643) is fixed between the sliding sleeve (641) and the support seat (642); The pre-tightening spring (644) is sleeved on the outside of the damping telescopic rod (643), and when the connecting rod (61) is inserted into the plug-in groove (621), the connecting rod (61) is elongated to the maximum 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 close to 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 for locking the position of the connecting rod (61) after being moved in the plug-in groove (621). The self-locking component (646) comprises:

2. A steel plate bulkhead according to claim 1, wherein The adjusting screw (6461) is threadedly connected to the plug-in block (62) and has one end extending out of the plug-in block (62); The synchronous plate (6462) is rotationally connected to the end of the adjusting screw (6461), and the plug-in block (62) is provided with a moving groove (622) therein, and the synchronous plate (6462) can be moved in the moving groove (622) along the side close to or away from the wallboard (1); ​ A plurality of locking groups are arranged along the height direction of the wall plate (1) and are fixed to the synchronization plate (6462). Each of the locking groups comprises a plurality of locking blocks (6463) arranged uniformly and spaced apart along the moving direction of the connecting rod (61). A clamping block (6464) is slidably connected to the connecting rod (61) along the direction perpendicular to the moving direction of the connecting rod (61). The end of the clamping block (6464) can extend outside the connecting rod (61). The clamping block (6464) can be clamped between two adjacent locking blocks (6463). The side of the clamping block (6464) close to the locking block (6463) is provided with a chamfer (6465). A locking spring (6466) is fixed between the clamping block (6464) and the connecting rod (61) and is always in a compressed state and gives the clamping block (6464) a force towards the outside of the connecting rod (61). The quick connecting assembly (63) comprises: A drive rack (631) is fixed to one side of the connecting rod (61). A rotating shaft (632) is rotatably connected to the connecting block (3) in the vertical direction. A plurality of drive gears (633) corresponding to the connecting rods (61) are fixedly sleeved on the rotating shaft (632). The drive gears (633) are in meshing engagement with the drive racks (631) on the corresponding connecting rods (61).

3. A steel plate bulkhead according to claim 1, wherein The quick connecting assembly (63) further comprises: A hand wheel (634) is fixed to the top of the rotating shaft (632). A storage chamber (635) is formed in the top of the connecting block (3). The hand wheel (634) is located in the storage chamber (635). A cover plate (636) is hingedly connected to the connecting block (3) and is buckled to one side of the storage chamber (635). A reinforcing rib plate (4) is fixed between the wall plate (1) and the leg (2).

4. A steel plate bulkhead according to claim 3, wherein A lifting ring (5) is fixed to the top of the wall plate (1). The construction steps of the steel plate guide wall according to any one of claims 1-6 are as follows: S1, construction platform trimming, using compaction equipment to compact the guide wall to be constructed position, making the soil in the guide wall range dense, preventing the trench from collapsing; 5. A steel plate bulkhead according to any one of claims 1-4, characterized in that, S2, measurement, lofting and excavation of guide trench, the width and depth of the guide trench meet the requirement of easy placement of the steel plate guide wall; 6. A steel plate bulkhead according to any one of claims 1-4, characterized in that S3, hoisting of the steel plate guide wall, after the guide trench is excavated, the prefabricated wall plate (1) is hoisted and embedded into the guide trench one by one, and the two connecting blocks (3) of the adjacent two wall plates (1) are aligned; 7. A method of constructing a steel sheet pile wall, characterized by, S4, steel plate guide wall splicing, the two adjacent connecting blocks (3) are connected and fixed by the quick connecting anti-loose mechanism (6), and a anti-loose pre-tightening force is applied, then the wall plates (1) are installed one by one to form a continuous steel guide wall body; S5, steel plate guide wall reinforcement, backfilling soil to the side of the steel guide wall body leg (2) to compact the steel guide wall body; S6, trench construction, after the steel plate guide wall installation and reinforcement construction is completed, continuous wall trench construction is carried out, and the steel guide trench is avoided from being disturbed during construction. ​ ​ ​ ​ S7, pouring the concrete of the underground continuous wall, pouring the concrete into the pouring cavity formed between the two groups of steel guide wall bodies, after the initial setting of the concrete, excavating the backfill soil on one side of the steel guide wall body support leg (2), and releasing the fixation of the quick connection anti-loose mechanism (6), and then removing the steel guide wall body to realize recycling.

8. A method of constructing a steel plate bulkhead according to claim 7, wherein In S4, the top surface of the steel plate guide wall is 50mm-100mm higher than the ground, the inner wall surface of the steel plate guide wall is vertical, and the net distance of the inner wall surface is greater than the design thickness of the underground continuous wall by 40mm-60mm.

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