CN215715242U - Variable cross-section T-shaped pile board wall structure - Google Patents

Variable cross-section T-shaped pile board wall structure Download PDF

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Publication number
CN215715242U
CN215715242U CN202122112708.4U CN202122112708U CN215715242U CN 215715242 U CN215715242 U CN 215715242U CN 202122112708 U CN202122112708 U CN 202122112708U CN 215715242 U CN215715242 U CN 215715242U
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pile
slide
section
wall structure
variable cross
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CN202122112708.4U
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魏星灿
杨晨光
廖明亮
张景顺
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PowerChina Chengdu Engineering Co Ltd
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PowerChina Chengdu Engineering Co Ltd
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Abstract

The utility model belongs to the technical field of retaining engineering, and particularly discloses a variable-section T-shaped pile board wall structure beneficial to reducing engineering cost. The variable cross-section T-shaped pile plate wall structure comprises at least two anti-slide piles arranged on a side slope at intervals and a soil retaining plate arranged between any two adjacent anti-slide piles, wherein the lower ends of the anti-slide piles penetrate through a foundation surface and extend into a side slope slide bed; the anti-slide pile part above the ground surface is the upper part of the pile body, and the cross section size of the upper part of the pile body is gradually reduced from bottom to top. Through establishing pile body upper portion into the structure that the cross section size reduces gradually from bottom to top, make it basically can keep off the soil stress size change of in-process with the friction pile unanimously, do benefit to and make each high position full play of pile body upper portion keep off the soil utility, not only guaranteed the security of retaining engineering, can effectively reduce engineering cost moreover.

Description

Variable cross-section T-shaped pile board wall structure
Technical Field
The utility model belongs to the technical field of retaining engineering, and particularly relates to a variable-section T-shaped pile board wall structure.
Background
At present, in the process of mountain city construction, pile plate wall structures are adopted for supporting and retaining in great quantities for supporting and retaining projects with large heights; the pile plate wall structure can be well adapted to the complex terrain environment of mountain cities, and the problem that the applicable height of a conventional gravity retaining wall is limited is solved.
The existing pile-slab wall structure mainly comprises two parts, wherein one part is a rectangular reinforced concrete square pile, and the other part is a reinforced concrete retaining plate arranged between adjacent piles. In the work progress, the stake in the pile plank wall structure of earlier construction, after pile body concrete strength reached the designing requirement, excavate the soil body between the adjacent stake again and construct and keep off the earth plate basis, then place the fender earth plate in the stake back of the body, backfill fender earth plate and stake dorsal part at last.
To a high great pile hoarding wall structure of fender height, pile body cross sectional dimension is great, if the fender apron still places in the stake back of the body department, will form great vacant place between the adjacent stake of fender apron front side, not only extravagant space, be unfavorable for practicing thrift the land moreover, when the construction place is comparatively narrow even, current pile hoarding wall structure is difficult to satisfy land use scope restriction requirement. Simultaneously, because the fender board sets up in the stake back of the body, when the fender board construction, there is the great problem of earthwork excavation volume between the adjacent stake, neither does not benefit to the reduction of erection time, is unfavorable for again reducing engineering cost, also unfavorable to construction safety. In addition, the piles in the existing pile slab wall structure are all the same in cross section size from the pile bottom to the pile top, and the pile body is designed in cross section size according to the position with the largest stress, so that the cross section size of the position with the smaller stress of the pile body is overlarge, the effect cannot be fully exerted, and the reduction of engineering cost is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a variable cross-section T-shaped pile slab wall structure which is beneficial to reducing engineering cost.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a variable cross-section T-shaped pile-slab wall structure comprises at least two anti-slide piles arranged on a side slope at intervals and a soil retaining plate arranged between any two adjacent anti-slide piles, wherein the lower ends of the anti-slide piles penetrate through a ground plane and extend into a side slope slide bed; the anti-slide pile part above the ground surface is the upper part of the pile body, and the cross section size of the upper part of the pile body is gradually reduced from bottom to top.
Further, the upper part of the pile body is of a right-angle trapezoidal structure, the front side face of the pile body is a vertical waist face, and the rear side face of the pile body is an inclined waist face.
Further, the anti-slide piles and the soil retaining plates are both of reinforced concrete structures.
Furthermore, the side surfaces of any two adjacent pile body upper parts corresponding to each other are provided with a bracket structure, and the soil retaining plate is attached to the rear side surface of the bracket structure.
Further, the front side of the bracket structure is flush with the front side of the upper part of the pile body.
Further, a structural joint is formed between the side end face of the soil retaining plate and the side face of the anti-slide pile, and a gap filling material is arranged in the structural joint.
Further, the gap filling material is asphalt bast fiber.
Furthermore, the soil guard plate comprises at least two plates which are arranged in an up-down attaching mode, lifting point notches are formed in the corresponding side faces of the two adjacent plates, and a drainage hole is formed by the two corresponding lifting point notches in an enclosing mode.
Further, the anti-slide pile comprises a pile top crown beam arranged at the top of the anti-slide pile, and the pile top crown beam connects the anti-slide piles together.
Further, be equipped with on the pile bolck crown roof beam and plant the groove, it has planting soil to fill in the planting groove, it has cane class green to plant on the planting soil.
The utility model has the beneficial effects that: the upper part of the pile body is set into a structure with the cross section size gradually reduced from bottom to top, so that the pile body can be basically consistent with the stress size change of the anti-slide pile in the soil retaining process, the soil retaining effect can be fully exerted at each height part of the upper part of the pile body, meanwhile, the pile top crown beam is arranged at the pile top, vine green plants are planted on the pile top crown beam, the synergistic stress of the anti-slide piles is ensured, the safety of the retaining engineering is improved, the engineering cost can be effectively reduced, and the environment is beautified.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional structural view of the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
labeled as: the anti-slide pile comprises an anti-slide pile 10, a pile body upper part 11, a bracket structure 12, a soil retaining plate 20, a plate block 21, a water drainage hole 22, a joint filling material 30, a pile top crown beam 40, a planting groove 41, vine green plants 42 and a ground surface 50.
Detailed Description
The utility model will be further explained with reference to the drawings.
As shown in fig. 1, a variable cross-section T-shaped pile-slab wall structure includes at least two slide-resistant piles 10 arranged on a side slope at intervals and a soil-blocking plate 20 arranged between any two adjacent slide-resistant piles 10, wherein the lower ends of the slide-resistant piles 10 penetrate through a ground plane 50 and extend into a slide bed of the side slope; the part of the slide-resistant pile 10 above the ground surface 50 is a pile body upper part 11, and the cross-sectional dimension of the pile body upper part 11 is gradually reduced from bottom to top.
In this document, the side with the slope lower than the slide-resistant pile 10 is taken as the front side, and the side with the slope higher than the slide-resistant pile 10 is taken as the rear side, as shown in fig. 3, the side corresponding to the downward direction in fig. 3 is the front side, and the side corresponding to the upward direction is the rear side.
Because the landslide acting force of the slope soil body above the ground surface 50 on the variable-section T-shaped pile plate wall structure is reduced along with the increase of the height, the upper part 11 of the pile body is set into a structure with the cross section size gradually reduced from bottom to top, the structure can be basically consistent with the change of the stress size in the soil retaining process of the anti-slide pile 10, namely, the smaller part of the cross section size of the upper part 11 of the pile body corresponds to the smaller part of the landslide acting force, the larger part of the cross section size of the upper part 11 of the pile body corresponds to the larger part of the landslide acting force, the structural strength of the higher part of the anti-slide pile 10 is not excessive, and the soil retaining effect of each height part of the anti-slide pile is favorably and fully exerted.
The slide-resistant pile 10 penetrates through a slide body of the side slope and penetrates into a pile column of the slide bed to support and block the sliding force of the slide body and play a role in stabilizing the side slope; the slide resistant piles 10 are typically reinforced concrete structures and each slide resistant pile 10 is typically spaced in one or more rows perpendicular to the down-slope direction. The gradual change structure of the upper shaft part 11 can be various, such as: a tapered structure, a structure in which the cross-sectional dimension increases exponentially from top to bottom, a structure in which the cross-sectional dimension increases logarithmically from top to bottom, and the like, and preferably a structure in which the stress magnitude changes in the soil retaining process of the slide-resistant pile 10.
In order to facilitate construction and ensure the perpendicularity of the front side surface of the pile slab wall structure, preferably, as shown in fig. 1, the upper part 11 of the pile body is in a right-angled trapezoid structure, the front side surface of the pile body is a vertical waist surface, and the rear side surface of the pile body is an inclined waist surface.
In order to save the land and reduce the excavated volume of the earth between the adjacent piles, as shown in fig. 3, a bracket structure 12 is provided on the side surfaces of any two adjacent upper pile body portions 11 corresponding to each other, and a retaining plate 20 is attached to the rear side surface of the bracket structure 12. The bracket structure 12 is usually a bulge on the side of the upper part 11 of the pile body, and steel bars integrated with the upper part 11 of the pile body are usually arranged in the bracket structure; specifically, the front side of the corbel structure 12 is flush with the front side of the pile body upper part 11. With retaining plate 20 so setting up, still do benefit to the reduction of erection time, reduce engineering cost, improve the security of construction.
The soil retaining plate 20 is mainly used for being combined with the anti-slide pile 10, effectively blocking soil between piles, avoiding the soil between piles from slipping and further stabilizing a side slope; the retaining plate 20 is also typically a reinforced concrete structure, which may be prefabricated or cast in place. As further shown in fig. 3, a structural joint is generally formed between the side end surface of the soil guard plate 20 and the side surface of the slide pile 10, and a caulking material 30 is disposed in the structural joint. The caulking material 30 may be various, and is preferably asphalt floc, which is a product of heating and dissolving asphalt, mixing with the floc, and uniformly stirring.
In order to facilitate construction and drainage, as shown in fig. 1 and 2, the soil guard plate 20 includes at least two blocks 21 attached to each other, and lifting point recesses are formed in the corresponding sides of two adjacent blocks 21, and a drainage hole 22 is defined by the two corresponding lifting point recesses. The plate 21 is generally prefabricated, and four lifting point notches which are distributed in a rectangular shape are usually formed in the plate; the lifting point notch is convenient for lifting and mounting the plate 21, and can form the drain hole 22, thereby being beneficial to drainage of the side slope and ensuring the safety of the side slope.
As a preferred aspect of the present invention, as further shown in fig. 1, the variable cross-section T-shaped piling slab wall structure further includes a pile top crown beam 40 disposed at the top of the slide resistant piles 10, the pile top crown beam 40 connecting the slide resistant piles 10 together. The pile top crown beam 40 can increase the integrity of the pile panel wall structure and improve its soil retaining ability.
In order to afforest the side slope, as shown in fig. 1, a planting groove 41 is formed in the pile top crown beam 40, planting soil is filled in the planting groove 41, and vine green plants 42 are planted on the planting soil.
The variable cross-section T-shaped pile plate wall structure is high in economy and construction safety, and is particularly suitable for areas with limited construction land ranges. The construction method of the variable cross-section T-shaped pile slab wall structure comprises the following steps:
s1 construction preparation: before construction, an instrument is used for carrying out paying-off positioning on the pile position of the slide-resistant pile 10, the central axis, the excavation contour line and the orifice elevation of the pile are accurately measured, and control piles of all axes are manufactured; meanwhile, the ground drainage is done, a pile hole awning is erected, the field work of lifting, lighting, communication, ventilation and the like in the pile hole is done, and the preparation work of pile hole locking construction is done;
s2 pile hole excavation: the excavation adopts a hole jumping excavation mode, and two piles need to be excavated in a complicated section meeting geological conditions; before pile holes are excavated, a locking notch is made, a protecting wall is made, a locking disc is arranged at the position of the pile hole, the locking disc is connected with the protecting wall, and a steel bar ladder is arranged in the protecting wall;
and (S3) pile hole acceptance: after the pile hole is excavated, measuring and checking whether the axis, the depth, the section and the verticality of the pile meet the design requirements or not;
s4 pile body steel bar manufacturing: manufacturing pile body reinforcing steel bars of any slide-resistant pile 10 and reinforcing steel bars of a bracket structure 12 according to a design drawing;
s5 pile body concrete pouring: firstly, when pile body steel bars are hoisted into a pile hole by adopting ground binding steel bars, after the steel bars are hoisted in place, erecting a mould on the pile body above a ground plane 50 to the height of a plate 21 below a pile top, and then pouring concrete from the bottom of the pile hole to a template opening by adopting a guide pipe; secondly, when pile body reinforcing steel bars are bound and installed in the holes and bound to the lower side of the bracket structure 12, pile body concrete below a ground plane 50 can be poured, then pile body reinforcing steel bars above the ground and bracket structure 12 reinforcing steel bars are bound, a formwork is erected to the height of one plate 21 below the pile top, and concrete is poured;
s6 construction of the retaining plate 20: the block 21 of the retaining plate 20 is prefabricated according to a design drawing, when the strength of the concrete of the pile body reaches 75% of the design strength, soil bodies among piles are cleaned, a base of the retaining plate is poured, the block 21 is installed, and the filling soil at the rear side of the block 21 synchronously rises along with the installation progress of the retaining plate;
s7 construction of the pile top crown beam 40: when the earth retaining plate 20 and the backfilling construction thereof reach the bottom elevation of the pile top crown beam 40, the binding of reinforcing steel bars, the erecting of a mold and the pouring of concrete are started to the pile top crown beam 40, so that the supporting and retaining structure pile forms an integral effect;
s8, when the concrete strength of the pile top crown beam 40 reaches 75% of the design value, backfilling planting soil in the planting groove 41, and planting vine green plants 42 for greening.

Claims (10)

1. A variable cross-section T-shaped pile-plate wall structure comprises at least two anti-slide piles (10) arranged on a side slope at intervals and a soil retaining plate (20) arranged between any two adjacent anti-slide piles (10), wherein the lower ends of the anti-slide piles (10) penetrate through a foundation surface (50) and extend into a side slope slide bed; the method is characterized in that: the anti-slide pile (10) part above the ground surface (50) is a pile body upper part (11), and the cross section size of the pile body upper part (11) is gradually reduced from bottom to top.
2. A variable cross-section T-shaped piling slab wall structure as claimed in claim 1, wherein: the upper part (11) of the pile body is of a right-angle trapezoidal structure, the front side surface of the pile body is a vertical waist surface, and the rear side surface of the pile body is an inclined waist surface.
3. A variable cross-section T-shaped piling slab wall structure as claimed in claim 1, wherein: the anti-slide pile (10) and the retaining plate (20) are both of reinforced concrete structures.
4. A variable cross-section T-shaped piling slab wall structure as claimed in claim 1, wherein: and the side surfaces of any two adjacent pile body upper parts (11) corresponding to each other are provided with a bracket structure (12), and the soil retaining plate (20) is attached to the rear side surface of the bracket structure (12).
5. A variable cross-section T-shaped piling slab wall structure as claimed in claim 4, wherein: the front side surface of the bracket structure (12) is flush with the front side surface of the pile body upper part (11).
6. A variable cross-section T-shaped piling slab wall structure as claimed in claim 4, wherein: structural seams are formed between the side end faces of the soil retaining plates (20) and the side faces of the slide-resistant piles (10), and gap filling materials (30) are arranged in the structural seams.
7. A variable cross-section T-shaped piling slab wall structure as claimed in claim 6, wherein: the joint filling material (30) is asphalt bast fiber.
8. A variable cross-section T-shaped piling slab wall structure as claimed in claim 4, wherein: the soil guard plate (20) comprises at least two plates (21) which are attached up and down, lifting point notches are arranged on the corresponding side surfaces of the two adjacent plates (21) up and down, and a drain hole (22) is defined by the two corresponding lifting point notches.
9. A variable cross-section T-shaped pile board wall structure as claimed in any one of claims 1 to 8, wherein: the anti-slide pile structure further comprises a pile top crown beam (40) arranged at the top of the anti-slide pile (10), and the pile top crown beam (40) connects the anti-slide piles (10) together.
10. A variable cross-section T-shaped piling slab wall structure as claimed in claim 9, wherein: be equipped with on pile bolck crown beam (40) and plant groove (41), it has planting soil to fill in planting groove (41), it has cane class green to plant (42) on the planting soil.
CN202122112708.4U 2021-09-02 2021-09-02 Variable cross-section T-shaped pile board wall structure Active CN215715242U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122112708.4U CN215715242U (en) 2021-09-02 2021-09-02 Variable cross-section T-shaped pile board wall structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122112708.4U CN215715242U (en) 2021-09-02 2021-09-02 Variable cross-section T-shaped pile board wall structure

Publications (1)

Publication Number Publication Date
CN215715242U true CN215715242U (en) 2022-02-01

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Application Number Title Priority Date Filing Date
CN202122112708.4U Active CN215715242U (en) 2021-09-02 2021-09-02 Variable cross-section T-shaped pile board wall structure

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Country Link
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