Permanent and temporary combined high slope supporting structure

Abstract

The utility model provides a permanent and temporary combined high slope supporting structure which comprises a double-row cast-in-situ bored pile supporting system, the front row is composed of combined cast-in-situ piles and steel pipe piles, and the rear row is densely arranged. The top is connected with a C40 concrete top plate, the bottom is provided with an anti-sliding bearing platform, and an anti-seepage system is additionally arranged between the front and rear rows of pile foundations; the side slope supporting structure has the advantages of being easy and convenient to construct, capable of saving sites, capable of combining the permanent wing wall and the temporary wing wall, capable of saving investment and the like, and the main structural technology key points of the double-row piles are that the front row and the rear row of cast-in-place piles are used as the supporting structure, difficulty of arranging transverse opposite supports is avoided, and meanwhile the side slope supporting height is increased. And in the later period, the concrete panel is additionally arranged to serve as a permanent wing wall structure, so that the whole body has good innovativeness and practicability.

Description

Technical Field

[0001] This utility model relates to the technical field of sluice gate wing wall structure, and in particular to a permanent and temporary combined high slope support structure. Background Technology

[0002] Existing high slope support methods mostly employ traditional types such as gravity support, buttress support, and cantilever support. While these methods are suitable for slope support of a certain height, they have the following drawbacks in situations with limited space, complex geological conditions, and high support heights:

[0003] 1. Traditional support methods usually require a large excavation area for the foundation pit, resulting in a large construction site area.

[0004] 2. The layout of lateral bracing or other support systems increases the difficulty of construction and the complexity of construction.

[0005] 3. Extensive use of temporary structures, which are difficult to reuse after construction, resulting in high investment and resource consumption.

[0006] Therefore, there is an urgent need for an innovative high slope support solution that can reduce land occupation, increase support height, and combine temporary and permanent functions.

[0007] In view of this, the inventor has designed a permanent and temporary combined high slope support structure, which leads to this invention. Utility Model Content

[0008] The purpose of this utility model is to provide a permanent and temporary combined high slope support structure to solve the problems of large land area, complex construction, and waste of resources in the existing technology.

[0009] To solve the above problems, the technical solution of this utility model is as follows:

[0010] A permanent and temporary combined high slope support structure for supporting high slopes on both sides of a river channel includes:

[0011] The double-row bored pile support structure includes a front row of pile foundations located near the river and a rear row of pile foundations located away from the river. The front row of pile foundations is composed of a combination of bored piles and steel pipe piles distributed at intervals, while the rear row of pile foundations is densely distributed.

[0012] The top connection structure is located at the top of the double-row bored pile support structure and is used to connect and fix the front row of piles and the rear row of piles.

[0013] The seepage-proof and water-stopping structure is set between the front and rear pile foundations to prevent river water from seeping into the slope soil.

[0014] Bottom reinforcement structure, located at the bottom of the front and rear pile foundations, is used to improve the anti-slip ability of the front and rear pile foundations.

[0015] Modular components are used for temporary support of riverbank slopes and later as permanent structures for upstream and downstream wing walls.

[0016] Preferably, the combined cast-in-place pile is a C40 reinforced concrete bored cast-in-place pile, and the diameter of the combined cast-in-place pile and the steel pipe pile is 1500mm, the spacing is 1800mm, and the pile length is 25m.

[0017] Preferably, the rear pile foundation is a C40 reinforced concrete bored pile with a diameter of 1500mm.

[0018] Preferably, the top connecting structure is a C40 reinforced concrete panel, and is cast integrally with the double-row bored pile support structure.

[0019] Preferably, the thickness of the top connecting structure is 1200mm.

[0020] Preferably, the seepage prevention and water-stopping structure is a high-pressure jet grouting pile water-stopping curtain and a composite seepage prevention membrane. The high-pressure jet grouting pile water-stopping curtain has a single pile diameter of 800m, a pile spacing of 600mm, and a pile length of 12.8m.

[0021] Preferably, the bottom reinforcement structure is an anti-slip platform or an enlarged foundation.

[0022] Preferably, when the bottom reinforcement structure is an anti-slip bearing platform, its cross-sectional shape is rectangular or trapezoidal, and the minimum spacing of its cross-section is greater than the diameter of the front row of pile foundations and the rear row of pile foundations.

[0023] Preferably, the bottom reinforcement structure is integrally cast with the front and rear pile foundations.

[0024] Preferably, the modular component is a C40 wire mesh shotcrete panel with a thickness of 150mm.

[0025] The beneficial effects of this utility model are as follows:

[0026] This invention significantly improves the support height and anti-sliding ability by combining a double-row bored pile support structure with a bottom reinforcement structure.

[0027] In addition, the support structure occupies a small area, making it particularly suitable for complex engineering environments with limited construction sites, minimizing interference with the surrounding area.

[0028] Furthermore, the modular prefabrication design reduces on-site construction work and significantly shortens the construction cycle. The integrated design of prefabricated panels and permanent wing walls reduces resource waste and achieves a seamless connection between temporary and permanent uses.

[0029] In particular, the combination of composite geomembrane and high-pressure jet grouting piles enhances water-stopping performance, effectively prevents water leakage, ensures long-term stability of slope structure, and adapts to high water levels or complex geological conditions. Attached Figure Description

[0030] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0031] in:

[0032] Figure 1 This is a schematic cross-sectional view of the overall structure of Embodiment 1 of this utility model;

[0033] Figure 2 This is a partial cross-sectional structural diagram of the front row of pile foundations in Embodiment 1 of this utility model;

[0034] Figure 3 This is a partial cross-sectional structural diagram of the rear pile foundation in Embodiment 1 of this utility model;

[0035] Figure 4 This is a partial cross-sectional view of the seepage-proof and water-stopping structure in Embodiment 1 of this utility model;

[0036] Figure 5 This is a partial cross-sectional structural diagram of a portion of the slope in Embodiment 1 of this utility model;

[0037] Figure 6 This is a schematic cross-sectional view of the overall structure of Embodiment 2 of this utility model.

[0038] Label Explanation:

[0039] 10. Double-row bored pile support structure; 11. Front row pile foundation; 111. Combined bored pile; 112. Steel pipe pile; 12. Rear row pile foundation; 20. Top connection structure; 21. Granite guardrail; 30. Seepage prevention and water-stopping structure; 31. Water-stopping curtain; 311. High-pressure jet grouting pile; 32. Composite seepage-proof membrane; 40. Bottom reinforcement structure; 50. Modular components; 60. Geotextile; 61. Coarse sand cushion layer; 62. Crushed stone cushion layer; 63. M10 mortar-grouted masonry slope protection; 64. C30 concrete coping; 70. River channel. Detailed Implementation

[0040] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Example

[0041] Please see Figures 1 to 5 This is a permanent and temporary combined high slope support structure, which is the preferred embodiment of the present utility model, used for the support of high slopes on both sides of a river channel 70. It includes a double-row bored pile support structure 10, a top connection structure 20, a seepage prevention and water-stopping structure 30, a bottom reinforcement structure 40, and modular components 50.

[0042] The double-row bored pile support structure 10 includes a front row of pile foundations 11 located near the river channel 70 and a rear row of pile foundations 12 located away from the river channel 70. The front row of pile foundations 11 is composed of composite cast-in-place piles 111 and steel pipe piles 112 distributed at intervals, while the rear row of pile foundations 12 is densely distributed.

[0043] In this embodiment, the combined cast-in-place pile 111 is a C40 reinforced concrete bored cast-in-place pile. The diameter D1 of both the combined cast-in-place pile 111 and the steel pipe pile 112 is 1500mm, and the distance L1 between the combined cast-in-place pile 111 and the steel pipe pile 112 is 1800mm. The pile length is 25m.

[0044] The rear pile foundation 12 is a C40 reinforced concrete bored pile, and the diameter D2 of the rear pile foundation 12 is 1500mm and the pile length is 20m.

[0045] The top connection structure 20 is located on the top of the double-row bored pile support structure 10 and is used to connect and fix the front row pile foundation 11 and the rear row pile foundation 12.

[0046] In this embodiment, the top connecting structure 20 is a C40 reinforced concrete panel. After the double-row bored pile support structure 10 is reinforced, it protrudes from the top position. After the reinforcement of the C40 reinforced concrete panel is connected to the reinforcement of the double-row bored pile support structure 10 (not shown in the figure), it is integrally cast.

[0047] In addition, in this embodiment, the thickness d1 of the top connecting structure 20 is designed to be 1200mm.

[0048] The seepage prevention and water-stopping structure 30 is set between the front row of pile foundations 11 and the rear row of pile foundations 12 to prevent the water from the river channel 70 from seeping into the slope soil.

[0049] In this embodiment, the seepage-proof and water-stopping structure 30 consists of a continuous water-stopping curtain 31 formed by staggered high-pressure jet grouting piles 311 and a composite geomembrane 32. The single pile diameter D3 of the high-pressure jet grouting piles 311 water-stopping curtain 31 is 800 mm, the pile spacing L2 of the high-pressure jet grouting piles 311 is 600 mm, and the single pile length of the high-pressure jet grouting piles 311 is 12.8 m. By using a pile spacing smaller than the single pile diameter, the high-pressure jet grouting piles 311 in the same row can form an integral water-stopping curtain 31. The composite geomembrane 32 is pre-laid in the borehole of the high-pressure jet grouting piles 311 before the high-pressure jet grouting piles 311 are poured, and the boreholes of several high-pressure jet grouting piles 311 share the same composite geomembrane 32, thereby improving the seepage-proof effect of the seepage-proof and water-stopping structure 30.

[0050] The bottom reinforcement structure 40 is provided at the bottom of the front row of pile foundations 11 and the rear row of pile foundations 12 to improve the anti-slip ability of the front row of pile foundations 11 and the rear row of pile foundations 12.

[0051] In this embodiment, the bottom reinforcement structure 40 is an anti-slip bearing platform with a rectangular cross-section and a horizontal width L3 of 1600mm. The bottom reinforcement structure 40, the front pile foundation 11, and the rear pile foundation 12 are all integrally cast.

[0052] Therefore, the bottom reinforcement structure 40 is set at the bottom of the front pile foundation 11 and the rear pile foundation 12, and is cast integrally with the pile foundation in the form of an enlarged foundation to improve the overall anti-slip capacity, so as to bear the vertical load of the pile foundation and prevent slippage.

[0053] Modular component 50 is used for temporary support of the riverbank 70 and later as a permanent structure for the upstream and downstream wing walls.

[0054] In this embodiment, the modular component 50 is a C40 wire mesh shotcrete panel with a thickness of 150mm. It serves as a temporary structure for the slope support on both sides of the river channel 70, and later as a permanent structure for the upstream and downstream wing walls, playing a role of "combining temporary and permanent".

[0055] In addition, in this embodiment, the top connecting structure 20 will later serve as a walkway on both banks. Granite guardrails 21 will be installed at the edge of the top connecting structure 20 near the river channel 70. Geotextile 60 will be laid at the bottom of the slope on the other side of the top connecting structure 20. Coarse sand cushion layer 61, crushed stone cushion layer 62 and M10 mortar-grouted stone revetment 63 will be laid sequentially upwards from the geotextile 60. The geotextile 60 has a specification of 400g / m². The thicknesses of the coarse sand cushion layer 61, crushed stone cushion layer 62 and M10 mortar-grouted stone revetment 63 are 100mm, 100mm and 300mm respectively. A C30 concrete capping 64 will be installed at the top of the slope. Example

[0056] Please see Figure 6This is a permanent and temporary combined high slope support structure as a second embodiment of the present invention. The difference between this structure and the first embodiment is that the bottom reinforcement structure 40 is an enlarged foundation.

[0057] In this embodiment, the enlarged foundation is a frustum-shaped foundation formed by expanding the diameter of the lower ends of the front row of piles 11 and the rear row of piles 12. By enlarging the foundation, it is cast integrally with the piles to improve the overall anti-slip capacity, so as to bear the vertical load of the piles and prevent slippage.

[0058] The beneficial effects of this utility model are as follows:

[0059] This utility model significantly improves the support height and anti-sliding ability by combining a double-row drilled cast-in-place pile support structure 10 with a bottom reinforcement structure 40.

[0060] In addition, the support structure occupies a small area, making it particularly suitable for complex engineering environments with limited construction sites, minimizing interference with the surrounding area.

[0061] Furthermore, the modular prefabrication design reduces on-site construction work and significantly shortens the construction cycle. The integrated design of prefabricated panels and permanent wing walls reduces resource waste and achieves a seamless connection between temporary and permanent uses.

[0062] In particular, the composite geomembrane 32 is combined with the high-pressure jet grouting pile 311 to improve the water-stopping performance, effectively prevent water leakage, ensure the long-term stability of the slope structure, and adapt to high water levels or complex geological conditions.

[0063] In summary, the slope protection structure of this utility model has the characteristics of simple construction, saving space, combining permanent and temporary features, and saving investment. The main structural technology of the double-row pile is: using the front and rear rows of cast-in-place piles as the support structure, avoiding the difficulty of setting up lateral bracing, and increasing the slope protection height. Later, by adding a concrete panel to serve as a permanent wing wall structure, the whole structure has good innovation and practicality.

[0064] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A permanent and temporary combined high slope support structure for supporting high slopes on both banks of a river (70), characterized in that, include: The double-row bored pile support structure (10) includes a front row of pile foundations (11) set near the river channel (70) and a rear row of pile foundations (12) set away from the river channel (70). The front row of pile foundations (11) is composed of composite bored piles (111) and steel pipe piles (112) distributed at intervals, and the rear row of pile foundations (12) is densely distributed. The top connection structure (20) is located on the top of the double-row bored pile support structure (10) and is used to connect and fix the front row pile foundation (11) and the rear row pile foundation (12). The seepage prevention and water-stopping structure (30) is set between the front row of pile foundations (11) and the rear row of pile foundations (12) to prevent the river water (70) from seeping into the slope soil. Bottom reinforcement structure (40) is provided at the bottom of the front pile foundation (11) and the rear pile foundation (12) to improve the anti-slip ability of the front pile foundation (11) and the rear pile foundation (12); Modular components (50) are used for temporary support of the river (70) slope and later as permanent structures for the upstream and downstream wing walls.

2. The high slope support structure combining permanent and temporary features according to claim 1, characterized in that, The combined cast-in-place pile (111) is a C40 reinforced concrete bored cast-in-place pile. The diameter of the combined cast-in-place pile (111) and the steel pipe pile (112) is 1500mm, the spacing is 1800mm, and the pile length is 25m.

3. The high slope support structure combining permanent and temporary features according to claim 1, characterized in that, The rear pile foundation (12) is a C40 reinforced concrete bored pile with a diameter of 1500mm.

4. The high slope support structure combining permanent and temporary features according to claim 1, characterized in that, The top connecting structure (20) is a C40 reinforced concrete panel, and is cast integrally with the double-row bored pile support structure (10).

5. A permanent and temporary combined high slope support structure according to claim 4, characterized in that, The thickness of the top connecting structure (20) is 1200mm.

6. A permanent and temporary combined high slope support structure according to claim 1, characterized in that, The seepage prevention and water-stopping structure (30) is a high-pressure jet grouting pile (311) water-stopping curtain (31) and a composite seepage prevention membrane (32). The single pile diameter of the high-pressure jet grouting pile (311) water-stopping curtain (31) is 800m, the pile spacing is 600mm, and the pile length is 12.8m.

7. A permanent and temporary combined high slope support structure according to claim 1, characterized in that, The bottom reinforcement structure (40) is an anti-slip platform or an enlarged foundation.

8. A permanent and temporary combined high slope support structure according to claim 7, characterized in that, When the bottom reinforcement structure (40) is an anti-slip bearing platform, its cross-sectional shape is rectangular or trapezoidal, and the minimum spacing of its cross-section is greater than the diameter of the front row pile foundation (11) and the rear row pile foundation (12).

9. A permanent and temporary combined high slope support structure according to claim 7, characterized in that, The bottom reinforcement structure (40) is integrally cast with the front pile foundation (11) and the rear pile foundation (12).

10. A permanent and temporary combined high slope support structure according to claim 1, characterized in that, The modular component (50) is a C40 wire mesh shotcrete panel with a thickness of 150mm.

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