CN215482872U

CN215482872U - Pile wall composite structure

Info

Publication number: CN215482872U
Application number: CN202120109347.5U
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2022-01-11
Anticipated expiration: 2031-01-15

Abstract

The utility model relates to the technical field of underground enclosing structures, in particular to a pile wall combination structure which comprises a plurality of prefabricated pile walls sequentially spliced with each other in the vertical direction, wherein each prefabricated pile wall is provided with a tongue-and-groove structure, two adjacent prefabricated pile walls are mutually matched and butted through the tongue-and-groove structure, so that the matching surface between the two adjacent prefabricated pile walls is a non-plane surface, and the two adjacent prefabricated pile walls are vertically connected and fixed through a mechanical connecting piece. The utility model ensures that the positioning effect between vertically adjacent prefabricated pile walls is better and the connection stability is better.

Description

Pile wall composite structure

Technical Field

The utility model relates to the technical field of underground enclosing structures, in particular to a pile wall combined structure.

Background

In the construction of buildings, in order to protect the safety of the construction of an underground main body structure and the surrounding environment of a foundation pit, the foundation pit needs to be subjected to control measures such as supporting, reinforcing and waterproofing, and the fender pile is a commonly used pile type in the control of supporting, reinforcing and the like of the foundation pit. The method is simple, the fender post can be divided into a cast-in-place mode and a prefabricated mode, and in order to promote the industrial development of buildings, an assembly type building is provided, is a tool for circular economy of modern cities, and better meets the requirement of 'green buildings' in new situation, so more and more pile wall combined structures adopt the prefabricated mode.

At present, a prefabricated pile-wall combined structure generally adopts a special-shaped fender post with a concave-convex connection structure on the transverse side part, the special-shaped fender post is transversely connected with adjacent pile units through the concave-convex connection structure to finally form a ring-shaped closed pile-wall combined structure, the waterproof performance of the whole pile-wall combined structure is improved, the vertical butt joint of the pile-wall combined structure still adopts the traditional welding, cast-in-place butt joint or butt joint by using a mechanical connecting piece, the welding or cast-in-place has large influence on the receiving environment, the construction period is long, and the problem of seam is easy to appear in the later period; and through the butt joint of mechanical connecting piece, present pile tip is the plane usually, receives the influence of factors such as manufacturing precision, and there is the deviation in the roughness of pile tip, and mechanical connecting piece butt joint though can improve the convenience of construction, but the pile tip of fender pile is the plane usually at present, and the vertical butt joint of fender pile does not have the guidance quality to there is the poor and low problem of interlock structural strength each other of location effect in the plane butt joint, has not only influenced the butt joint between the adjacent precast pile wall, and the stability of connecting simultaneously is also lower.

Therefore, it is necessary to provide a pile-wall combination structure, which improves the butt joint accuracy and connection stability between adjacent prefabricated pile walls on the premise of ensuring convenient construction by improving the matching relationship between vertically adjacent pile-wall combination structures.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel pile-wall combined structure, which aims to solve the problem that the stability and reliability of the vertical splicing of the existing prefabricated pile-wall combined structure are poor.

In order to achieve the purpose, the utility model provides a pile wall combination structure which comprises a plurality of prefabricated pile walls which are sequentially spliced with each other in the vertical direction, wherein each prefabricated pile wall is provided with a tongue-and-groove structure, two adjacent prefabricated pile walls are mutually matched and butted through the tongue-and-groove structure, so that the matching surface between the two adjacent prefabricated pile walls is a non-plane surface, and the two adjacent prefabricated pile walls are vertically connected and fixed through a mechanical connecting piece.

The utility model also comprises that the tongue-and-groove structure comprises at least one tenon and at least one groove matched with the tenon, the connecting end of one of the two vertically connected precast pile walls is provided with at least one tenon and/or at least one groove, the connecting end of the other precast pile wall is provided with a matched groove and/or tenon, and the two vertically connected precast pile walls are matched and butted through the groove and/or the tenon.

The utility model also comprises that the two vertically connected prefabricated pile walls form concave-convex fit through grooves and/or tenons, and the butt joint part of the two vertically connected prefabricated pile walls is coated with a protective layer on the water facing side and/or the back water side;

the tenon and/or the groove are/is arranged on the prefabricated pile wall connecting end and at least one end side surface connected with the connecting end, namely the tenon and/or the groove are/is arranged at the outer edge of the prefabricated pile wall connecting end, and the vertically adjacent prefabricated pile walls form a butt joint through the tenon and/or the groove; at least the part of the butt joint communicated with the outside is in the vertical coverage range of the protective layer;

the width value L1 of the protective layer is greater than or equal to the width value L2 which is occupied by the butt joint seam and communicated with the outside along the vertical direction under the butt joint state of the adjacent precast pile walls.

The utility model also comprises that the protective layer comprises a rubber elastic layer attached to the prefabricated pile wall.

The utility model also comprises that a filling space is arranged at least part of the butt joint border of the two adjacent prefabricated pile walls, and a curing substance is filled between the two adjacent prefabricated pile walls (1) to fill the fit clearance;

wherein, a curing substance is filled between the protective layer and the precast pile wall;

wherein the curing substance is epoxy resin or adhesive material or cement paste.

The utility model also comprises that the mechanical connecting piece is arranged at the end face of the connecting end of the tongue-and-groove structure on the prefabricated pile wall and/or the end face of the connecting end of the prefabricated pile wall outside the tongue-and-groove structure;

the mechanical connecting piece is arranged on the end face of the connecting end of the prefabricated pile wall outside the tongue-and-groove structure.

The utility model also includes that the mechanical connector comprises: the first butt-joint component is arranged at one connecting end of the prefabricated pile walls, and the second butt-joint component is arranged at the other connecting end of the prefabricated pile walls; the first docking assembly includes: the first socket sleeve is arranged at one end of the prefabricated pile wall, and the plug-in piece is fixedly connected with the first socket sleeve at one end part; the second docking assembly includes: the second socket sleeve is arranged at the other end of the prefabricated pile wall, and the clamping structure which is arranged in the second socket sleeve and used for reversely clamping the other end of the inserting piece is clamped, wherein the first butt joint assembly and the second butt joint assembly on the same prefabricated pile wall are fixedly connected through a stress rib.

The utility model also comprises that one end of the plug-in is a threaded connection end which is screwed with the first socket sleeve, the other end of the plug-in is provided with a reducing head which can extend into the second socket sleeve, and the rod body of the plug-in is in transition connection with the reducing head through a reducing section.

The present invention also includes a retention structure comprising: the middle nut is used for sealing and covering the annular clamping body in the second socket sleeve, and the elastic element is arranged in the second socket sleeve and pushes the annular clamping body towards the middle nut;

the middle nut is provided with an inner conical blocking surface facing the annular blocking body, and after the reducing head sequentially penetrates through the middle nut and the annular blocking body, the annular blocking body is clamped with the reducing section;

the annular clamping body is provided with at least two arc-shaped clamping blocks which can be sequentially connected end to form a central through hole in a combined and surrounding mode, after the reducing head penetrates through the central through hole and is spread out of the annular clamping body, each arc-shaped clamping block is reset and gathered at the position of the reducing section along the inner conical blocking surface under the pushing action of the elastic element to reversely clamp the reducing head;

or, the annular clamping body is a whole, the inner peripheral wall of the annular clamping body is provided with at least two axial grooves around the central axis, when the plug-in applies axial thrust to one end face of the annular clamping body and/or radial thrust far away from the central axis, the annular clamping body is split into at least two independent arc-shaped blocks at least part of the axial grooves, and after the variable-diameter head penetrates through the split annular clamping body, each arc-shaped block is reset and gathered at the position of the variable-diameter section along the inner conical blocking surface under the action of the thrust of the elastic element so as to reversely clamp the variable-diameter head;

or the annular clamping body comprises an annular bottom plate and an annular clamping body which are integrally structured; annular clamping body has two at least clamping jaws that encircle annular bottom plate axis interval and set up, and wherein, the clamping jaw has claw portion and elastic connection piece, and elastic connection piece extends out in order to link up the claw portion to middle nut direction by annular bottom plate, and each elastic connection piece radially struts when the reducing head runs through the claw portion, treats that the reducing head crosses the claw portion, and then each elastic connection piece radially resets so that each claw portion gathers together in reducing section position with reverse card stop reducing head.

The utility model also comprises that the clamping structure comprises a screwing part provided with an axial through hole and an elastic clamping part which is axially and integrally formed at one end of the screwing part;

the elastic clamping part is provided with a plurality of elastic sheets which are arranged at intervals around the axis of the rotary joint part, and the elastic sheets are gradually gathered in the radial direction from the rotary joint part to the elastic clamping part;

when the reducing head penetrates through the elastic clamping part, the elastic pieces which are gathered originally are radially stretched, and when the reducing head passes through the elastic clamping part, the elastic pieces are radially reset and gathered at the reducing section position to reversely clamp the reducing head.

The utility model has the following beneficial effects: through set up tongue-and-groove structure on the precast pile wall for adjacent precast pile wall can carry out unsmooth cooperation and connect, the interlock is inseparable between the adjacent precast pile wall, and simultaneously, when butt joint between the adjacent precast pile wall, the tongue-and-groove structure on the precast pile wall still has the positioning action, be convenient for accurate butt joint between the adjacent precast pile wall, in addition, still be provided with mechanical connecting piece between two adjacent precast pile walls and connect fixedly, on the one hand, make to have stronger connection stability between the adjacent precast pile wall, on the other hand, the tenon fourth of the twelve earthly branches structure that forms through the tongue-and-groove structure's advantage lies in vertical alignment when convenient upper and lower stake butt joint, improve the convenience of mechanical connecting piece butt joint and improve butt joint efficiency. Meanwhile, the tongue-and-groove structure enables the connecting ends of two adjacent prefabricated pile walls to form a concave-convex matching relation, a zigzag waterproof route is formed, the problem that two sides of a plain seam between two adjacent prefabricated pile walls are through at present is solved, the waterproof performance between two vertical adjacent prefabricated pile walls is improved, and further the waterproof performance of the pile wall combined structure is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of a prefabricated pile wall according to the present invention;

FIG. 2 is a schematic structural cross-sectional view of two adjacent prefabricated pile walls in an unmated state according to the present invention;

FIG. 3 is a schematic structural cross-sectional view of two adjacent prefabricated pile walls in a matched state according to the present invention;

FIG. 4 is a schematic cross-sectional view of another embodiment of the present invention;

FIG. 5 is a schematic structural view of the mechanical connector of the present invention;

FIG. 6 is a schematic cross-sectional view of a mechanical connector according to the present invention;

FIG. 7 is a cross-sectional view of another mechanical fastener of the present invention;

fig. 8 is a schematic cross-sectional view of yet another mechanical fastener of the present invention.

The list of labels in the figure is:

1. prefabricating a pile wall;

2. a tongue-and-groove structure; 21. a tenon; 22. a groove;

3. a mechanical connector; 31. a first socket sleeve; 32. a second socket sleeve; 33. a plug-in; 331. a variable diameter head; 332. a diameter-changing section; 34. a middle nut; 35. a locking structure; 351. an elastic element; 352. an annular locking body;

4. a protective layer;

5. a stress rib;

6. the space is filled.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

In the present specification, terms such as "upper, lower, inner, and outer" are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, the terms cannot be interpreted as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

Example one

The following is merely a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be construed as the protection scope of the present invention.

In the building construction, in order to protect the construction safety of underground main structure and the environmental problem around the foundation pit, the pile-wall composite structure plays an especially important role, and the pile-wall composite structure is mostly formed by splicing a plurality of prefabricated pile walls one by one, especially for those deeper foundation pits, the prefabricated pile walls are often spliced to reach the depth required by the pile-wall composite structure for enclosing the foundation pit, but, the current vertical prefabricated pile wall end is matched through a plane, so that the problem that the seam exists between the plane of the prefabricated pile wall end and the plane of the end is poor in positioning effect between the adjacent prefabricated pile walls, and the mutual interlocking structure strength is not enough is solved.

The embodiment provides a pile-wall combined structure, as shown in fig. 1-3, the pile-wall combined structure comprises a plurality of prefabricated pile walls 1 which are sequentially spliced with each other in the vertical direction, and a tongue-and-groove structure 2 is formed at the vertical butt joint of two adjacent prefabricated pile walls 1, so that on one hand, a concave-convex matching connection structure can be formed between the adjacent prefabricated pile walls 1, the mutual engagement strength is high, and the connection stability between the vertically adjacent prefabricated pile walls 1 is improved; on the other hand, the tongue-and-groove structure 2 also has a positioning function, when two adjacent prefabricated pile walls 1 are spliced, the adjacent prefabricated pile walls 1 are precisely positioned and matched through the tongue-and-groove structure 2 in the vertical direction, so that the whole vertical alignment of the pile wall combined structure is ensured, the dislocation and deflection are avoided, and the unstable connection or disconnection between the prefabricated pile walls 1 is caused. In addition, the tongue-and-groove structure 2 is used for enabling the connecting ends of two adjacent prefabricated pile walls 1 to form a concave-convex matching relation between the two adjacent prefabricated pile walls 1, and a waterproof route with two sides not communicated in the thickness direction and/or the width direction is formed at the matching position, so that the waterproof performance of the pile wall combined structure is improved, and the problem that the waterproof performance is poor due to the fact that two sides are communicated through a plain seam between two vertical adjacent prefabricated pile walls 1 is solved. In the embodiment of the prefabricated pile wall with the prefabricated pile wall and pile wall combined structure, the mechanical connecting pieces 3 are further arranged between two adjacent prefabricated pile walls 1 for connection and fixation, and the mechanical connecting pieces 3 are arranged at the end faces of the groove structures 2 of the prefabricated pile walls 1 and/or the end faces of the connecting ends of the prefabricated pile walls 1 outside the groove structures 2, so that the connecting effect between the adjacent prefabricated pile walls 1 is improved, and the vertical pulling resistance and the connecting stability between the adjacent prefabricated pile walls 1 are improved.

As a key technical content of the present embodiment, as shown in fig. 1, in the present embodiment, the tongue-and-groove structure 2 includes at least one tongue 21 and at least one groove 22 adapted to the tongue 21, the connecting end of one of the two vertically connected precast pile walls 1 is formed with at least one tongue 21 and/or at least one groove 22, the connecting end of the other one is formed with an adapted groove 22 and/or tongue 21, and the two vertically connected precast pile walls 1 are in mating butt joint through the groove 22 and the tongue 21. In this embodiment, a tenon 21 is arranged at one end of each prefabricated pile wall 1 shown in fig. 1, and a groove 22 adapted to the tenon is arranged at the other end of each prefabricated pile wall 1, as shown in fig. 2 and fig. 3, the two vertically adjacent prefabricated pile walls 1 are connected by a mechanical connector 3, the prefabricated pile walls 1 are connected by the groove 22 and the tenon 21, so that the connection stability is higher, and the groove 22 and the tenon 21 can also form a transverse limiting function, so that the dislocation resistance and the tilting resistance of the pile wall combined structure are improved, and the groove 22 and the tenon 21 have a positioning function, so that the accuracy of vertical butt joint is improved. In this embodiment, specific numbers of the tenons 21 and the grooves 22 are not limited, and it can be understood that one end of any precast pile wall 1 has one tenon 21, the other end has one groove 22 adapted to the tenon 21, one end of the adjacent precast pile wall 1 having the tenon 21 is connected with one end of the other precast pile wall 1 having the groove 22 in a matching manner, and the one end having a plurality of tenons 21 or grooves 22 is also the same, and thus description is omitted. This kind of structural design, on the one hand, has improved the vertical positioning connection effect between the precast pile wall 1, improves the convenience among the butt joint process, and on the other hand, through the unsmooth cooperation of tenon 21 and recess 22 between the adjacent precast pile wall 1 and connect, and mutual interlock structural strength is high, has improved connection stability.

In this embodiment, as shown in fig. 3, after two adjacent prefabricated pile walls 1 are connected, a concave-convex fit is formed at a butt-joint border between two vertically connected prefabricated pile walls 1 through a groove 22 and a tenon 21, after the butt-joint of the two vertically connected prefabricated pile walls 1 is completed, a structure with two non-through sides is formed at the concave-convex fit to form a "waterproof wall", which can prevent water, silt and the like outside the pile wall composite structure from entering the interior of the pile wall composite structure, in order to further improve the waterproof performance of the vertical fit of the prefabricated pile walls 1 and prolong the durability and service life of the mechanical connector 3, so that the butt-joint portion of the two vertically connected prefabricated pile walls is coated with a protective layer 4 on the water-facing side and/or the back water side, in this embodiment, the protective layer 4 comprises a rubber elastic layer attached to the prefabricated pile walls 1, preferably, the protective layer 4 is always tensioned and attached to the end circumferential side wall of the prefabricated pile walls 1, can effectively protect the unsmooth cooperation that forms between two adjacent prefabricated pile walls 1 to connect the department and not corroded by saline and alkaline material, but the elastic layer automatically regulated and the distance between prefabricated pile wall 1, guarantee closely to laminate in prefabricated pile wall 1 all the time, wherein, as shown in figure 3, the width value L1 of protective layer 4 is greater than or equal to the communicating width value L2 along vertical direction under adjacent prefabricated pile wall 1 butt joint state of butt joint seam and external world, two adjacent prefabricated pile walls 1 form unsmooth complex butt joint seam in the vertical coverage of protective layer 4, can effectively separate water, silt, corrosive material etc. and get into the inside that the pile wall assembly was protected from the seam comprehensively, improve the waterproof performance and the whole durability of pile wall integrated configuration.

In this embodiment, as shown in fig. 3, a filling space 6 is left at least a part of the butt-joint interface between two adjacent prefabricated pile walls 1, it is simply understood that after the adjacent prefabricated pile walls 1 are butted, there is no absolute gap-free connection between the two connecting end surfaces, and a fitting gap is often left, which is the filling space 6, and after the prefabricated pile walls 1 are spliced, groundwater, silt, and the like can permeate into the pile wall composite structure from the filling space 6 between the adjacent prefabricated pile walls 1, so that the enclosure effect of the pile wall composite structure is greatly reduced, and for this reason, after the two adjacent prefabricated pile walls 1 are fixedly connected, a sealing fit is formed between the two adjacent prefabricated pile walls 1 by filling a curing material into the filling space 6, or smearing a curing material on the connecting end surface of the prefabricated pile wall 1 in advance. On the basis that protective layer 4 plays first heavy protective effect, the solidification material can seal filling space 6, has further prevented the infiltration of groundwater or silt, has improved waterproof, prevention of seepage effect, can also consolidate the connection effect between two link of adjacent precast pile wall 1 in addition, has improved joint strength. Preferably, a curing substance is filled between the protective layer 4 and the prefabricated pile wall 1, so that the sealing effect is improved. The curing substance is epoxy resin or adhesive material, but in this embodiment, the curing substance is not limited to be only epoxy resin, adhesive material or cement paste, and other substances that can ensure the same effect can be used.

In the above embodiment, in order to further improve the waterproof performance of the vertical fitting part of the precast pile wall 1, and to extend the durability and the service life of the mechanical connecting member 3, as shown in fig. 4, tenons 21 and/or grooves 22 are provided on the connecting ends of the precast pile wall 1 and the circumferential sides connected to the connecting ends, namely, the tenon 21 and/or the groove 22 are/is provided at the outer edge of the connecting end of the precast pile wall 1, the vertically adjacent precast pile walls 1 form a butt joint by the tenon 21 and the groove 22, at least the part of the butt seam communicating with the outside is covered in the vertical direction of the protective layer 4, which, as will be understood in a simple manner, namely, the outer edge of the vertical butt joint end of the precast pile wall 1 is also provided with a tenon 21 and/or a groove 22, so that after the adjacent precast pile walls 1 are butted, the filling space 6 can be blocked, so that the permeation of underground water through the filling space 6 is prevented, and the anti-seepage effect of the pile-wall combined structure is ensured.

In this embodiment, as shown in fig. 1 to 3, the mechanical connector 3 includes a first butt-joint component and a second butt-joint component, wherein the first butt-joint component is disposed at one end of the precast pile wall 1, and the second butt-joint component is disposed at the other end, and the first butt-joint component and the second butt-joint component are connected by the stress bar 5, so as to ensure effective tensioning of the precast pile wall 1, thereby improving the connection strength of the precast pile wall 1. When two adjacent prefabricated pile walls 1 are spliced with each other, the first butt joint component on one of the connecting ends of the prefabricated pile walls 1 is butted with the second butt joint component on one of the ends of the adjacent prefabricated pile walls 1, so that the connection between the adjacent prefabricated pile walls 1 is ensured. As shown in fig. 5-6, wherein the first docking assembly comprises: the first socket sleeve 31 exposed at one end of the prefabricated pile wall 1 and the plug-in member 33 fixedly connected with the first socket sleeve 31 at the other end thereof, and the second butt joint assembly comprises: the second socket sleeve 32 exposed at the other end of the prefabricated pile wall 1 and the locking structure 35 disposed in the second socket sleeve 32 and used for reversely locking the other end of the insert 33, as will be understood in a simple manner, when two adjacent prefabricated pile walls 1 are butted, the insert 33 in the first socket sleeve 31 is inserted into the clamping structure 35 in the second socket sleeve, and the clamping structure 35 reversely clamps the insert 33 to realize butt joint, wherein, one of them tip of plug-in 33 is the threaded connection section with first socket sleeve 31 spiro union, and plug-in 33 is detachable threaded connection with first socket sleeve 31, has guaranteed plug-in 33's simple to operate, and the other end has the reducing head 331 that can stretch into second socket sleeve 32, by reducing section 332 transitional coupling between the body of rod of plug-in 33 and reducing head 331, has guaranteed that the effective card of structure 35 to plug-in 33 blocks, improves its connection effect.

As shown in fig. 6, in the present embodiment, the stopping structure 35 mainly comprises an annular stopping body 352 covered by the middle nut 34 in the second socket sleeve 32 and an elastic element 351 disposed in the second socket sleeve 32 and pushing the annular stopping body 352 towards the middle nut 34, it can be easily understood that, after the annular stopping body 352 and the elastic element 351 are put into the second socket sleeve 32, the middle nut 34 is screwed with the second socket sleeve 32 to block the annular stopping body 352 and the elastic element 351, and the annular stopping body 352 and the elastic element 351 are prevented from falling out of the second socket sleeve 32 or from being pulled out of the second socket sleeve 32 when the annular stopping body 352 and the elastic element 351 are subjected to a pulling force towards the tube mouth direction of the second socket sleeve 32, wherein, as shown in fig. 6, the middle nut 34 is provided with a shape stopping surface towards the annular stopping body 352, the reducing head 331 is convenient to insert, after the reducing head 331 penetrates through the middle nut 34 and the annular clamping body 352 in sequence, the annular clamping body 352 clamps the reducing section 332, and the diameter of the reducing section 332 is smaller than that of the reducing head 331, so that the inserting piece 33 can be blocked by the annular clamping body 352 when being pulled outwards, the connecting effect of the mechanical connecting piece 3 is ensured, and the connecting performance between two adjacent prefabricated pile walls 1 is improved.

In this embodiment, the annular locking body 352 has more than two arc-shaped locking blocks that can be sequentially connected end to form a combined ring around the central through hole, after the reducing head 331 penetrates through the central through hole and spreads out the annular locking body 352, each arc-shaped locking block is returned along the inner tapered blocking surface under the pushing action of the elastic element 351 to gather at the position of the reducing section 332 to reversely lock the reducing head 331, so that the effective bearing area of the insert 33 is increased to ensure the locking effect of the locking structure 35, or the annular locking body 352 is an integral body, and at least two axial grooves are formed on the inner peripheral wall of the annular locking body 352 around the central axis, when the insert 33 applies an axial pushing force to one end surface of the annular locking body 352 and/or a radial pushing force far from the central axis, the annular locking body 352 is split into more than two independent arc-shaped blocks at least part of the axial grooves, and after the reducing head 331 penetrates through the split annular locking body 352, each arc piece resets along interior toper fender surface and gathers together in reducing section 332 position under elastic element 351's the effect of pushing against with reverse card end reducing 331, and this kind of structural design has guaranteed on the one hand that card end structure 35 effectively blocks to plug-in components 33, and on the other hand, the annular installation that blocks body 352 of being convenient for.

As shown in fig. 7, the locking structure 35 includes only one annular locking body 352, and the annular locking body 352 includes an annular bottom plate and an annular clamping body which are integrally formed; annular clamping body has at least two clamping jaws that encircle annular bottom plate axis interval and set up, wherein, the clamping jaw has claw and elastic connection piece, elastic connection piece extends out in order to link up the claw by annular bottom plate to middle nut direction, simple understanding, this annular clamping body 352 is the body that possesses elastic clamping, elastic element 351 has been saved on the basis that original annular clamping body 352, make the structure that annular clamping body 352 is simpler, each elastic connection piece radially struts when reducing head 331 runs through the claw, treat that reducing head 331 crosses the claw, then each elastic connection piece radially resets so that each claw gathers together in reducing section 332 position with reverse clamping reducing head 331, guaranteed to stop structure 35 to plug-in components 33's card effect.

Example two

The same portions as those in the first embodiment are given the same reference numerals, and the same description is omitted.

In the present embodiment, as shown in fig. 8, a locking structure 35 is provided, the locking structure 35 includes a screwing portion configured with an axial through hole and an elastic clamping portion axially and integrally formed at one end of the screwing portion, the elastic clamping portion has a plurality of elastic sheets arranged at intervals around an axis of the screwing portion, in a direction from the screwing portion to the elastic clamping portion, each elastic sheet gradually and radially gathers, when the reducer 331 penetrates through the elastic clamping portion, each elastic sheet originally gathers radially, and when the reducer 331 crosses the elastic clamping portion, each elastic sheet radially resets and gathers at a position of the reducer section 332 to lock the reducer 331 reversely, which is equivalent to that the middle nut 34, the elastic element 351 and the annular locking body 352 are configured as an integral structure on the basis of the locking structure 35 in the first embodiment, on one hand, installation of the locking structure 35 is more convenient, and on the other hand, this structure 35 that stops can effectually block to plug-in components 33, has guaranteed mechanical connecting piece 3's linkage effect, has improved pile wall integrated configuration's connection stability.

The present invention provides a pile-wall combination structure, which is described in detail above, and the principle and the implementation of the present invention are explained in this document by using a plurality of specific examples, and the description of the above examples is only used to help understanding the method of the present invention and the core idea thereof. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The pile wall combination structure is characterized by comprising a plurality of prefabricated pile walls (1) which are sequentially spliced with one another in the vertical direction, wherein each prefabricated pile wall (1) is provided with a rabbet structure (2), two adjacent prefabricated pile walls (1) are mutually matched and butted through the rabbet structures (2), so that the matching surface between the two adjacent prefabricated pile walls (1) is a non-plane surface, and the two adjacent prefabricated pile walls (1) are vertically connected and fixed through a mechanical connecting piece (3).

2. Pile-wall combination according to claim 1, characterized in that the tongue-and-groove structure (2) comprises at least one tenon (21) and at least one groove (22) adapted to the tenon (21), the connecting end of one of the two vertically connected precast pile walls (1) is formed with at least one tenon (21) and/or at least one groove (22), the connecting end of the other is formed with adapted groove (22) and/or tenon (21), and the two vertically connected precast pile walls (1) are in fit abutment by the groove (22) and/or tenon (21).

3. The pile-wall combination structure according to claim 2, characterized in that the two vertically connected prefabricated pile walls (1) are in concave-convex fit through the grooves (22) and/or the tenons (21), and the butt joint parts of the two vertically connected prefabricated pile walls (1) are coated with the protective layer (4) at the water facing side and/or the water backing side;

the tenon (21) and/or the groove (22) are arranged on the connecting end of the precast pile wall (1) and at least one end side surface connected with the connecting end, namely the tenon (21) and/or the groove (22) are arranged at the outer edge of the connecting end of the precast pile wall (1), and the vertically adjacent precast pile walls (1) form butt joints through the tenon (21) and/or the groove (22); at least the part of the butt seam communicated with the outside is in the vertical coverage range of the protective layer (4);

the width value L1 of the protective layer (4) is larger than or equal to the width value L2 which is occupied by the butt joint seam and communicated with the outside along the vertical direction when the adjacent precast pile walls (1) are in a butt joint state.

4. Pile-wall assembly according to claim 3, characterised in that the protective layer (4) comprises a rubber-elastic layer applied to the prefabricated pile wall (1).

5. A pile-wall assembly according to claim 3, wherein a filling space (6) is provided at least partially in the butt-joint border between two adjacent prefabricated pile walls (1), and a curing substance is filled between two adjacent prefabricated pile walls (1) to fill the fitting gap;

a curing substance is filled between the protective layer (4) and the precast pile wall (1);

the curing substance is epoxy resin or adhesive material or cement paste.

6. Pile-wall combination according to claim 1, characterized in that the mechanical connectors (3) are arranged at the connecting end faces of the tongue-and-groove structure (2) on the prefabricated pile wall (1) and/or at the connecting end faces of the prefabricated pile wall (1) outside the tongue-and-groove structure (2);

the mechanical connecting piece (3) is arranged on the end face of the prefabricated pile wall (1) at the connecting end outside the tongue-and-groove structure (2).

7. Pile-wall assembly according to claim 1, characterized in that the mechanical connector (3) comprises: the first butt-joint component is arranged at one connecting end of the prefabricated pile walls (1) and the second butt-joint component is arranged at the other connecting end of the prefabricated pile walls (1), when two adjacent prefabricated pile walls (1) are vertically spliced with each other, the first butt-joint component at one connecting end of the prefabricated pile walls (1) is in butt joint with the second butt-joint component at the corresponding connecting end of the adjacent prefabricated pile wall (1); the first docking assembly includes: the prefabricated pile wall comprises a first socket sleeve (31) arranged at one end of the prefabricated pile wall (1) and an insert (33) with one end fixedly connected with the first socket sleeve (31); the second docking assembly includes: the second socket sleeve (32) is arranged at the other end of the prefabricated pile wall (1), and the clamping structure (35) which is arranged in the second socket sleeve (32) and used for reversely clamping the other end of the inserting piece (33) is clamped, wherein the first butt joint component and the second butt joint component on the same prefabricated pile wall (1) are fixedly connected through a stress rib (5).

8. The pile-wall combination according to claim 7, wherein the insert (33) has a threaded end for screwing into the first socket sleeve (31) at one end and a reducer (331) at the other end for extending into the second socket sleeve (32), wherein the shank of the insert (33) is in transition connection with the reducer (331) by a reducer section (332).

9. Pile-wall combination according to claim 8, characterized in that the retaining structure (35) comprises: an annular blocking body (352) covered in the second socket sleeve (32) by a middle nut (34), and an elastic element (351) which is arranged in the second socket sleeve (32) and pushes the annular blocking body (352) towards the direction of the middle nut (34);

wherein, the middle nut (34) is provided with an inner conical blocking surface towards one end of the annular blocking body (352), the reducing head (331) sequentially penetrates through the middle nut (34) and the annular blocking body (352), and the annular blocking body (352) is clamped with the reducing section (332);

the annular clamping body (352) is provided with at least two arc-shaped clamping blocks which can be sequentially connected end to form a central through hole in a combined and surrounding mode, after the reducing head (331) penetrates through the central through hole and is spread out of the annular clamping body (352), each arc-shaped clamping block is reset and gathered at the position of the reducing section (332) along the inner conical blocking surface under the pushing action of the elastic element (351) to reversely clamp the reducing head (331);

or, the annular clamping body (352) is an integral body, at least two axial grooves are formed in the inner circumferential wall of the annular clamping body (352) around the central axis, when the insert (33) applies axial thrust to one end face of the annular clamping body (352) and/or radial thrust far away from the central axis, the annular clamping body (352) is split into at least two independent arc-shaped blocks at least part of the axial grooves, and after the reducing head (331) penetrates through the split annular clamping body (352), each arc-shaped block is reset and gathered at the position of the reducing section (332) along the inner conical blocking surface under the action of thrust of the elastic element (351) to reversely clamp the reducing head (331);

alternatively, the annular locking body (352) includes an annular bottom plate and an annular clamping body which are integrally structured; annular clamping body has two at least clamping jaws that encircle annular bottom plate axis interval and set up, and wherein, the clamping jaw has claw portion and elastic connection piece, and elastic connection piece extends out in order to link up the claw portion to middle nut (34) direction by annular bottom plate, and reducing head (331) run through each elastic connection piece radially struts during the claw portion, treats that reducing head (331) cross the claw portion, and then each elastic connection piece radially resets so that each claw portion gathers together reducing section (332) position is in order reverse card end reducing head (331).

10. The pile-wall combination structure according to claim 8, wherein the locking structure (35) comprises a screwing part provided with an axial through hole and an elastic clamping part axially and integrally formed at one end of the screwing part;

the reducing head (331) penetrates through the elastic clamping part and radially struts the elastic sheets which are gathered originally, and when the reducing head (331) crosses the elastic clamping part, the elastic sheets are radially reset and gathered at the position of the reducing section (332) to reversely clamp the reducing head (331).