CN215105367U - Foundation pit supporting structure - Google Patents

Abstract

The utility model relates to a supporting construction of foundation ditch in the work progress, will two at least sides protect the subassembly respectively the interval side by side hit into the basement of foundation ditch for two at least sides protect the subassembly and strut the both sides soil layer at the foundation ditch respectively. Because the side guard subassembly includes tubular pile and bending-resistant sheet pile, and the bending-resistant sheet pile is connected on the tubular pile, consequently, this kind of combined structure forms the diaphragm wall in the foundation ditch, is favorable to improving foundation ditch supporting construction's cross-sectional rigidity, strengthens overall structure's antidumping rigidity, effectively overcomes the defect that single sheet pile structure bending rigidity is little, guarantees that the side direction soil horizon structure of foundation ditch is more stable, is favorable to improving the security of strengthening follow-up deep basal pit and continuing excavation construction. And because the water stop sheet piles are connected between the two adjacent side protection assemblies, the problem of water stop between the tubular piles can be effectively solved through the water stop sheet piles. Meanwhile, the load born on the water stop sheet pile can be smoothly transferred to the tubular pile, and the stable soil retaining function of the water stop sheet pile is effectively realized.

Description

Foundation pit supporting structure

Technical Field

The utility model relates to a foundation ditch operation technical field especially relates to foundation ditch supporting construction.

Background

In the process of foundation pit operation, not only the stability of the foundation pit needs to be ensured, but also the safety and convenience of operation in the pit need to be ensured; meanwhile, the soil at the bottom of the pit and outside the pit is controlled within a certain range so as to ensure the normal use of adjacent buildings and municipal facilities, so that the foundation pit needs to be supported during operation.

The steel sheet pile support is a common support form, the construction process of the method is simple, and partial materials can be recycled. But the construction method is limited by the defects of structural design, so that the lateral rigidity is low, the anti-overturning capability is weak, the horizontal displacement of the steel sheet pile body is large, and the risk of foundation pit wall soil body collapse is easy to generate. Meanwhile, the prestressed pipe pile needs to be combined with a stirring pile for water stop in a supporting project, so that the construction efficiency is reduced to a certain extent, and the construction cost is increased.

SUMMERY OF THE UTILITY MODEL

Therefore, a foundation pit supporting structure with high strength, strong lateral rigidity, high anti-overturning capacity, simple operation and convenient construction is needed to be provided.

A foundation pit supporting structure, the foundation pit supporting structure includes: the side guard assembly comprises at least two side guard assemblies, the at least two side guard assemblies are arranged in parallel at intervals, each side guard assembly comprises a tubular pile and a bending-resistant sheet pile, and the bending-resistant sheet piles are connected to the tubular piles; stagnant water sheet pile, adjacent two all be equipped with between the subassembly is protected to the side stagnant water sheet pile, and adjacent two the subassembly is protected to the side reaches enclose into the guard space between the stagnant water sheet pile, the relative both ends of stagnant water sheet pile are connected with the tubular pile of both sides respectively.

In the construction process, the foundation pit supporting structure enables the at least two side protection assemblies to be respectively and parallelly impacted into the foundation of the foundation pit at intervals, so that the at least two side protection assemblies are respectively supported on soil layers on two sides of the foundation pit. Because the side guard subassembly includes tubular pile and bending-resistant sheet pile, and the bending-resistant sheet pile is connected on the tubular pile, consequently, this kind of combined structure forms the diaphragm wall in the foundation ditch, is favorable to improving foundation ditch supporting construction's cross-sectional rigidity, strengthens overall structure's antidumping rigidity, effectively overcomes the defect that single sheet pile structure bending rigidity is little, guarantees that the side direction soil horizon structure of foundation ditch is more stable, is favorable to improving the security of strengthening follow-up deep basal pit and continuing excavation construction. And because the water stop sheet piles are connected between the two adjacent side protection assemblies, the problem of water stop between the tubular piles can be effectively solved through the water stop sheet piles. Meanwhile, the load born on the water stop sheet pile can be smoothly transferred to the tubular pile, and the load applied by the soil layer is effectively dispersed, so that the stable soil retaining function of the water stop sheet pile is realized. In addition, the foundation pit supporting structure is provided with the water stop sheet piles, so that water stop is not needed to be performed in the supporting process by combining the stirring piles, the construction operation is effectively simplified, the supporting construction is convenient, the supporting construction efficiency is effectively improved, and the supporting construction cost is reduced.

In one embodiment, a first buckling position is arranged on the tubular pile, and a second buckling position in buckling fit with the first buckling position is arranged on the bending-resistant sheet pile.

In one embodiment, the first fastening position is a first fastening buckle, and the second fastening position is a first clamping hole.

In one embodiment, the bending-resistant sheet pile comprises at least two first enclosing plates, the at least two first enclosing plates are sequentially connected in parallel, and the first enclosing plate positioned at one end of the bending-resistant sheet pile is connected to the tubular pile.

In one embodiment, the first enclosing plates are provided with first reinforcing grooves, and in two adjacent first enclosing plates, the notches of the two first reinforcing grooves are oppositely arranged.

In one embodiment, the first shroud is a larsen steel plate.

In one of them embodiment, all be equipped with the third position of detaining on the relative both sides of tubular pile, all be equipped with on the relative both ends of stagnant water sheet pile with the position snap-fit's of detaining fourth is detained to the third.

In one embodiment, the third fastening position is a second fastening buckle, and the fourth fastening position is a second clamping hole.

In one embodiment, the water stop sheet pile comprises at least two second enclosing plates, the at least two second enclosing plates are sequentially connected in parallel, and the second enclosing plates positioned at two opposite ends of the water stop sheet pile are respectively connected to the two tubular piles.

In one embodiment, the second enclosing plates are provided with second reinforcing grooves, and in two adjacent second enclosing plates, the notches of the two second reinforcing grooves are oppositely arranged.

In one embodiment, the second shroud is a larsen steel plate.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of an exemplary embodiment of a retaining structure for a foundation pit;

FIG. 2 is a schematic view of a retaining structure for a foundation pit according to another embodiment;

fig. 3 is a schematic view of a tube pile structure in one embodiment;

FIG. 4 is a schematic view of an inner side of a foundation pit after construction according to an embodiment;

fig. 5 is a schematic view of the other side of the foundation pit after construction according to an embodiment.

100. A foundation pit supporting structure; 110. a side guard assembly; 111. bending-resistant sheet piles; 1111. a first enclosing plate; 11111. a first reinforcing groove; 1112. a second buckling position; 11121. a first card hole; 112. a tubular pile; 1121. a first buckling position; 11211. a first lock catch; 1122. a third buckling position; 11221. a second lock catch; 120. water stopping sheet piles; 121. a second enclosing plate; 1211. a second reinforcing groove; 122. a fourth buckling position; 1221. a second card hole; 130. protecting the space; 200. a foundation pit; 300. and (4) the earth surface.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In one embodiment, referring to fig. 1, an excavation supporting structure 100, the excavation supporting structure 100 includes: side guard assembly 110 and sheet pile 120. The number of side guard assemblies 110 is at least two. At least two side guard components 110 are arranged in parallel at intervals, and the side guard components 110 comprise pipe piles 112 and bending-resistant sheet piles 111. The bending-resistant sheet pile 111 is connected to the pipe pile 112. A water stop sheet pile 120 is arranged between two adjacent side guard assemblies 110, and a protection space 130 is enclosed between two adjacent side guard assemblies 110 and the water stop sheet pile 120. The opposite ends of the water stopping sheet pile 120 are connected with the pipe piles 112 at both sides respectively.

In the construction process of the foundation pit supporting structure 100, at least two side guard assemblies 110 are respectively and parallelly impacted into the base of the foundation pit 200 at intervals, so that the at least two side guard assemblies 110 are respectively supported on soil layers on two sides of the foundation pit 200. Because the side guard assembly 110 comprises the tubular pile 112 and the anti-bending sheet pile 111, and the anti-bending sheet pile 111 is connected to the tubular pile 112, the combined structure forms a continuous wall in the foundation pit 200, which is beneficial to improving the section rigidity of the foundation pit supporting structure 100, enhancing the anti-overturning rigidity of the whole structure, effectively overcoming the defect of small anti-bending rigidity of a single sheet pile structure, ensuring that the lateral soil layer structure of the foundation pit 200 is more stable, and being beneficial to improving the safety of strengthening the follow-up continuous excavation construction of the deep foundation pit 200. And because the water stop sheet piles 120 are connected between two adjacent side guard assemblies 110, the problem of water stop between the tubular piles 112 and the tubular piles 112 can be effectively solved through the water stop sheet piles 120. Meanwhile, the load borne by the water stop sheet pile 120 can be smoothly transferred to the tubular pile 112, and the load applied by the soil layer can be effectively dispersed, so that the stable soil retaining function of the water stop sheet pile 120 can be realized. In addition, the foundation pit supporting structure 100 is provided with the water stop sheet piles 120, so that water stop is not needed to be performed by combining stirring piles in the supporting process, the construction operation is effectively simplified, the supporting construction is convenient, the supporting construction efficiency is effectively improved, and the supporting construction cost is reduced.

It should be noted that, referring to fig. 4 and 5, during the construction of the side guard assembly 110, one end of the side guard assembly 110 is inserted into the base of the foundation pit 200 to a certain depth, and the other end of the side guard assembly 110 is flush with the ground surface 300 or slightly higher than the ground surface 300. In addition, the specific number of the side guard assemblies 110 is determined according to the actual size of the foundation pit 200, and is not particularly limited in this embodiment.

It should be further noted that, the connection manner of the bending-resistant sheet pile 111 on the tubular pile 112 may be various, as long as the stable connection between the bending-resistant sheet pile 111 and the tubular pile 112 is satisfied, for example: the installation mode of the bending-resistant sheet pile 111 on the tubular pile 112 is bolt connection, clamping, riveting, pin connection, welding and the like. Similarly, the connection mode of the water stop sheet pile 120 on the tubular pile 112 may also be various, such as: the water stop sheet pile 120 is mounted on the tubular pile 112 in a manner of bolt connection, clamping connection, riveting connection, pin connection, welding and the like.

Further, referring to fig. 1 and fig. 3, a first buckling portion 1121 is disposed on the tube pile 112. The bending-resistant sheet pile 111 is provided with a second fastening portion 1112 which is in snap fit with the first fastening portion 1121. Therefore, in the present embodiment, the tubular pile 112 and the bending-resistant sheet pile 111 are connected in a snap-fit manner, that is, in the assembling process, the second fastening portion 1112 is fastened to the first fastening portion 1121, so that one end of the bending-resistant sheet pile 111 is stably connected to the tubular pile 112, which is not only beneficial to improving the bonding strength between the tubular pile 112 and the bending-resistant sheet pile 111, but also greatly facilitates the connection operation between the bending-resistant sheet pile 111 and the tubular pile 112, thereby being beneficial to improving the assembling efficiency of the foundation pit supporting structure 100.

Optionally, the first fastening portion 1121 is a structure such as a lock catch or a hook, and the second fastening portion 1112 is a structure such as a hole or a groove; alternatively, the first fastening portion 1121 is a hole or a groove, and the second fastening portion 1112 is a lock or a hook.

Specifically, referring to fig. 1 and fig. 3, the first fastening portion 1121 is a first locking hole 11211, and the second fastening portion 1112 is a first fastening hole 11121, so that the first fastening hole 11121 of the anti-bending sheet pile 111 is hung on the first locking hole 11211 of the tube pile 112 during the assembling process, so that the anti-bending sheet pile 111 is connected to the tube pile 112 to form a stable continuous wall.

It should be noted that the first lock 11211 may be mounted on the tubular pile 112 by means of a bolt, a snap, a welding, a riveting, a pin, an integral molding, or the like. The integrated forming mode is bending, die casting, ingot casting and the like. Meanwhile, the first fastening hole 11121 may be formed by drilling or bending one end of the anti-bending sheet pile 111.

In one embodiment, referring to fig. 1 and 3, the bending-resistant sheet pile 111 includes at least two first coamings 1111. At least two first coamings 1111 are connected in parallel in turn. A first shroud 1111 at one end of the bending-resistant sheet pile 111 is connected to the tube pile 112. Therefore, the anti-bending sheet pile 111 of the embodiment is formed by sequentially splicing at least two first coamings 1111 in parallel, and is used for supporting on a lateral soil layer of the foundation pit 200 to ensure that the lateral direction of the foundation pit 200 is effectively supported. Meanwhile, the spliced anti-bending sheet pile 111 is also beneficial to carrying in a blocking mode, and the occupied space of the anti-bending sheet pile 111 in the carrying process is reduced, so that the anti-bending sheet pile 111 can be conveniently and quickly carried to a construction site.

It should be noted that the connection of the first surrounding plate 1111 at one end of the bending-resistant sheet pile 111 to the tube pile 112 should be understood as follows: the bending-resistant sheet pile 111 is formed by first surrounding plates 1111 arranged in a straight line, and therefore, the first surrounding plate 1111 located at one end of the bending-resistant sheet pile 111 is the first surrounding plate 1111 located at the first or last one.

It should be further noted that the number of the first enclosing plates 1111 in the present embodiment may be multiple, for example: the number of the first coamings 1111 is two, three, four or more, and therefore, the embodiment is not particularly limited, and only one side of the foundation pit 200 needs to be supported. Meanwhile, the shape of the first enclosing plate 1111 may be designed in various ways, such as: the shape of the first coaming 1111 can be designed into a plane structure, a wave-shaped structure, a concave-convex structure, a sawtooth-shaped structure and the like. In addition, the material of the first enclosure 1111 may be metal, such as: steel, etc.; it may also be a composite material, such as: carbon fibers, and the like.

Of course, in other embodiments, the number of the first enclosure 1111 may be one, so that the size of the first enclosure 1111 should be designed to be larger to match an inner size of the foundation pit 200.

Alternatively, the connection mode between the first enclosing plate 1111 and the first enclosing plate 1111 may be bolt connection, clamping connection, riveting connection, welding connection and the like.

Specifically, referring to fig. 1, the first surrounding plate 1111 and the first surrounding plate 1111 are connected by a locking type, that is, one side of the first surrounding plate 1111 is bent to form a locking structure, and one side of two adjacent first surrounding plates 1111 is locked to each other to form the stable anti-bending sheet pile 111. This embodiment adopts the hasp formula to connect, guarantees to connect between two adjacent first coamings 1111 and dismantles more conveniently to be favorable to improving foundation ditch supporting structure 100's efficiency of construction.

In one embodiment, referring to fig. 1, the first surrounding plates 1111 are provided with first reinforcing grooves 11111, and the notches of the two first reinforcing grooves 11111 are oppositely arranged in two adjacent first surrounding plates 1111. It can be seen that the shape of the anti-bending sheet pile 111 formed by the first coaming 1111 is concave-convex in sequence and alternately distributed, so that the structural strength of the anti-bending sheet pile 111 is effectively improved, the lateral anti-bending rigidity of the foundation pit supporting structure 100 is improved, and the foundation pit supporting structure has stronger anti-overturning capability. Simultaneously, set up first reinforcement groove 11111 on first bounding wall 1111, also be favorable to alleviateing the weight of first bounding wall 1111 for bending resistance sheet pile 111 is whole lighter, makes things convenient for foundation ditch supporting structure 100 to transport.

It should be noted that the shape of the first reinforcing groove 11111 can be designed into various shapes, such as: the shape of the first reinforcing groove 11111 is a semicircular shape, a semielliptical shape, a trapezoidal shape, a square shape, a pentagonal shape, a hexagonal shape, or other shapes. The above-listed shape is only one achievable structure provided by the present embodiment, but the shape of the first reinforcing groove 11111 is not limited thereto.

Specifically, referring to fig. 1, the first reinforcing groove 11111 has a trapezoidal shape. Simultaneously, first reinforcement groove 11111 is inwards sunken by first bounding wall 1111 and forms, is favorable to not only simplifying first reinforcement groove 11111's processing technology like this, but also is favorable to guaranteeing the overall structure intensity of first bounding wall 1111, avoids fluting on first bounding wall 1111 and destroys the overall structure of first bounding wall 1111.

In an embodiment, referring to fig. 1, the first enclosure 1111 is made of a larsen steel plate, so that the first enclosure 1111 is made of the larsen steel plate, which is beneficial to improving the structural strength of the first enclosure 1111 and improving the lateral bending rigidity of the foundation pit 200. Simultaneously, choose for use the Larsen steel sheet as first bounding wall 1111 for foundation ditch 200's the construction of strutting is more environmental protection, makes not have mud pollution environment problem in the work progress. When the foundation pit supporting structure 100 is used up, the material of the foundation pit supporting structure 100 can be saved by recycling.

The Larsen steel plate is a U-shaped steel plate pile, is a novel building material, and is used as a soil retaining wall, a water retaining wall and a sand retaining wall when a bridge cofferdam is built, a large pipeline is laid and a temporary ditch is excavated. The method plays an important role in engineering, and is used as a retaining wall, an embankment revetment and the like in wharfs and unloading yards.

In one embodiment, referring to fig. 1 and 3, the tube pile 112 has third buckling positions 1122 on two opposite sides. The opposite ends of the sheet pile 120 are provided with fourth fastening locations 122 that are snap-fitted with the third fastening locations 1122. Therefore, the tubular pile 112 and the water stop sheet pile 120 of the embodiment are connected in a buckling manner, that is, in the assembling process, the fourth buckling position 122 is buckled on the third buckling position 1122, so that one end of the water stop sheet pile 120 is stably connected to the tubular pile 112, which is not only beneficial to improving the bonding strength between the tubular pile 112 and the water stop sheet pile 120, but also greatly facilitates the connection operation between the water stop sheet pile 120 and the tubular pile 112, thereby being beneficial to improving the assembling efficiency of the foundation pit supporting structure 100.

Optionally, the third fastening location 1122 is a structure such as a lock or a hook, and the fourth fastening location 122 is a structure such as a hole or a groove; alternatively, the third fastening location 1122 is a hole or a groove, and the fourth fastening location 122 is a lock or a hook.

Specifically, referring to fig. 1 and fig. 3, the third fastening location 1122 is a second fastening 11221, and the fourth fastening location 122 is a second fastening hole 1221, so that in the assembling process, the second fastening hole 1221 of the water-stopping sheet pile 120 is hung on the second fastening 11221 of the pipe pile 112, so that the water-stopping sheet pile 120 is connected to the pipe pile 112 to form a stable water-stopping structure.

It should be noted that the second lock 11221 may be mounted on the tubular pile 112 by a bolt, a snap, a welding, a riveting, a pin, an integral molding, or the like. The integrated forming mode is bending, die casting, ingot casting and the like. Meanwhile, the second fastening hole 1221 may be installed on the sheet metal sealing pile 120 by drilling or bending one end of the sheet metal sealing pile 120.

In one embodiment, referring to fig. 1, the sheet stop pile 120 includes at least two second enclosing plates 121. At least two second enclosing plates 121 are sequentially connected in parallel, and the second enclosing plates 121 positioned at the two opposite ends of the water stop sheet pile 120 are respectively connected to the two tubular piles 112. Therefore, the sheet pile 120 of the present embodiment is formed by splicing at least two second enclosing plates 121 in parallel in sequence, and is used for realizing a stable water stopping function in the foundation pit 200. Meanwhile, the spliced water stop sheet pile 120 is also beneficial to carrying in a blocking mode, and the occupied space of the water stop sheet pile 120 in the carrying process is reduced, so that the water stop sheet pile 120 can be conveniently and quickly carried to a construction site.

It should be noted that the connection of the second enclosing plates 121 on the two opposite ends of the water stop sheet pile 120 to the pipe pile 112 should be understood as follows: the sheet-sealing piles 120 are formed by arranging second surrounding plates 121 in a row, and therefore, the second surrounding plates 121 located at the opposite ends of the sheet-sealing piles 120 are the second surrounding plates 121 located at the first and last, respectively.

It should be further noted that the number of the second enclosing plates 121 in this embodiment may be multiple, for example: the number of the second enclosing plates 121 is two, three, four or more, and at this time, the ratio of the number of the tubular piles 112 to the number of the second enclosing plates 121 is: one to two or one to many are uniformly distributed, please refer to fig. 1 and fig. 2. In this embodiment, the present embodiment is not particularly limited, and only one side of the foundation pit 200 needs to be supported. Meanwhile, the shape of the second enclosing plate 121 can be designed in various ways, such as: the second surrounding plate 121 may have a planar structure, a wavy structure, a concave-convex structure, a zigzag structure, or the like. In addition, the second enclosing plate 121 may be made of metal, such as: steel, etc.; it may also be a composite material, such as: carbon fibers, and the like.

Of course, in other embodiments, the number of the second enclosing plates 121 may be one, so that the size of the second enclosing plates 121 should be designed to be larger and to be matched with the size of the foundation pit 200.

Optionally, the second enclosing plate 121 and the second enclosing plate 121 may be connected by bolts, clamping, riveting, welding, or the like.

Specifically, referring to fig. 1, the second surrounding plate 121 and the second surrounding plate 121 are connected by a locking type, that is, one side of the second surrounding plate 121 is bent to form a locking structure, and one sides of two adjacent second surrounding plates 121 are locked with each other to form the stable water stopping sheet pile 120. The embodiment adopts the lock catch type connection, and the connection and the disassembly between two adjacent second enclosing plates 121 are more convenient, so that the construction efficiency of the foundation pit supporting structure 100 is improved.

In one embodiment, referring to fig. 1, the second enclosing plates 121 are provided with second reinforcing grooves 1211, and the notches of the two second reinforcing grooves 1211 are oppositely arranged in two adjacent second enclosing plates 121. Therefore, the shape of the water stop sheet pile 120 formed by the second enclosing plate 121 is concave-convex and is distributed alternately in sequence, so that the structural strength of the water stop sheet pile 120 is effectively improved, and the structural strength between the tubular pile 112 and the tubular pile 112 is improved. Meanwhile, the second reinforcing groove 1211 is formed in the second enclosing plate 121, so that the weight of the second enclosing plate 121 is reduced, the whole water stop sheet pile 120 is lighter, and the foundation pit supporting structure 100 is convenient to transport.

In one embodiment, referring to fig. 1, the second shroud 121 is a larsen steel plate. In this embodiment, a larsen steel plate is selected as the second enclosing plate 121, so that the supporting construction of the foundation pit 200 is more environment-friendly, and the problem of slurry pollution to the environment does not exist in the construction process. When the foundation pit supporting structure 100 is used up, the material of the foundation pit supporting structure 100 can be saved by recycling.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. The utility model provides a foundation ditch supporting construction, its characterized in that, foundation ditch supporting construction includes:

the side guard assembly comprises at least two side guard assemblies, the at least two side guard assemblies are arranged in parallel at intervals, each side guard assembly comprises a tubular pile and a bending-resistant sheet pile, and the bending-resistant sheet piles are connected to the tubular piles;

stagnant water sheet pile, adjacent two all be equipped with between the subassembly is protected to the side stagnant water sheet pile, and adjacent two the subassembly is protected to the side reaches enclose into the guard space between the stagnant water sheet pile, the relative both ends of stagnant water sheet pile are connected with the tubular pile of both sides respectively.

2. The foundation pit supporting structure according to claim 1, wherein the tubular pile is provided with a first buckling position, and the bending-resistant sheet pile is provided with a second buckling position which is in snap fit with the first buckling position.

3. The excavation supporting structure of claim 2, wherein the first fastening location is a first fastening buckle, and the second fastening location is a first fastening hole.

4. The foundation pit supporting structure according to claim 1, wherein the bending-resistant sheet pile comprises at least two first enclosing plates, the at least two first enclosing plates are sequentially connected in parallel, and the first enclosing plate located at one end of the bending-resistant sheet pile is connected to the tubular pile.

5. The foundation pit supporting structure according to claim 4, wherein the first enclosing plates are provided with first reinforcing grooves, and notches of two first reinforcing grooves in two adjacent first enclosing plates are oppositely arranged.

6. The excavation supporting structure of claim 5, wherein the first enclosure plate is a Larsen steel plate.

7. The foundation pit supporting structure according to any one of claims 1-6, wherein the opposite sides of the tubular pile are provided with third buckling positions, and the opposite ends of the water stop sheet pile are provided with fourth buckling positions which are in snap fit with the third buckling positions.

8. The excavation supporting structure of claim 7, wherein the third fastening location is a second fastening location and the fourth fastening location is a second fastening hole.

9. The foundation pit supporting structure according to any one of claims 1 to 6, wherein the water-stop sheet pile comprises at least two second enclosing plates, the at least two second enclosing plates are sequentially connected in parallel, and the second enclosing plates located at two opposite ends of the water-stop sheet pile are respectively connected to the two tubular piles.

10. The foundation pit supporting structure according to claim 9, wherein the second enclosing plates are provided with second reinforcing grooves, and notches of two second reinforcing grooves in two adjacent second enclosing plates are oppositely arranged; and/or the presence of a gas in the gas,

the second coaming is a Larsen steel plate.

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