Slope supporting structure
By setting up a combined structure of bottom plate, grouting steel pipe piles, columns, retaining plates and backfill at the fill slope, the situation of low bearing capacity of slope support structures in narrow spaces and foundation soil in the prior art is solved. The construction difficulties and high cost problems have achieved improvements in slope stability and construction efficiency.
Patent Information
- Application Number
- CN202420490379.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The existing filling slope support structure is difficult to construct and has high cost when the surrounding buildings are dense and the foundation soil bearing capacity is low, and it is impossible to avoid the late settlement of the filling slope.
Design a slope support structure, including setting up a base plate, multiple grouting steel pipe piles, columns, retaining plates and backfill at the slope, forming a groove-type support structure through these components to restrict the deformation of the filler , and the foundation bearing capacity is improved by grouting steel pipe piles.
The overall stability and construction efficiency of the slope support structure are improved, the construction space requirements are reduced, the use of pile foundation equipment is avoided, and flexible design can be carried out according to the slope height and load conditions to achieve safety, stability, Economic effect.
Smart Images
Figure CN222435309U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of geotechnical engineering, in particular to a slope supporting structure. Background Art
[0002] At present, with the continuous acceleration of urbanization, land use in major cities is becoming increasingly tight, and high fill slope projects formed by filling in narrow spaces are often encountered. Due to the dense surrounding buildings, large-scale machinery and equipment cannot usually be put in place for such slope projects, which makes it impossible to construct the pile foundation of the lower part of the slope support structure. For fill slopes with large slope heights, dense surrounding buildings, low bearing capacity of foundation soil, large later slope top loads, and strict deformation requirements, it is very difficult to select such fill slope support structures. In the existing fill slope support structures, pile-board wall support structures are often used to control slope deformation. However, such support structures cannot be constructed with support piles in narrow sites with complex surrounding environments. The cost of supporting pile construction is high, and the later settlement of the fill slope cannot be avoided. Utility Model Content
[0003] The purpose of the utility model is to provide a slope support structure to solve the problems existing in the prior art in the above-mentioned background technology.
[0004] In order to solve the problems existing in the prior art, the utility model provides a slope support structure, including a base plate arranged at the slope, a plurality of grouting steel pipe piles inserted in the slope are provided at the bottom end of the base plate, a group of columns are respectively provided on both sides of the top of the base plate, the tops of the two groups of columns are provided with cap beams, the sides of each group of columns are provided with retaining plates, and backfill soil is filled between the two groups of columns.
[0005] Preferably, a plurality of tension anchor cables with both ends respectively passing through the retaining plate are provided inside the backfill soil, and both ends of the plurality of tension anchor cables are respectively connected to the retaining plate.
[0006] Preferably, drainage holes penetrating the retaining plate are provided at the top and bottom ends of the side surfaces of the retaining plate.
[0007] Preferably, the top end of the bottom plate is lower than the bottom end of the slope.
[0008] Preferably, the top of the cap beam is flush with the top of the backfill soil.
[0009] Preferably, the bottom plate and the two groups of columns are connected to form a groove shape, and the backfill soil is located inside the groove.
[0010] Preferably, a plurality of the grouting steel pipe piles are evenly distributed at the bottom end of the base plate at equal distances.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] The utility model has the characteristics of good overall stability, wide application range, prefabricated retaining plates between columns, quick construction, low requirements for surrounding construction space, no need for pile foundation equipment to construct support piles, and good construction effect. The reasonable column cross-sectional size and spacing can be determined according to the height of the fill slope and the load on the top of the slope, and the position and number of tension prestressed anchor cables can be determined according to the deformation requirements, thereby achieving a safe, stable and economical design purpose. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a side view schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a front view schematic diagram of the overall structure of the utility model;
[0015] Figure numerals: 1. base plate; 2. retaining plate; 3. cap beam; 4. tension anchor cable; 5. column; 6. grouting steel pipe pile; 7. drainage hole; 8. backfill soil. DETAILED DESCRIPTION
[0016] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.
[0017] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.
[0018] Example 1
[0019] like Figure 1-2 As shown, a slope support structure includes a reinforced concrete base plate 1 arranged at the bottom of the slope, a plurality of columns 5 connected to the cast-in-place concrete of the reinforced concrete base plate 1, a plurality of grouting steel pipe piles 6 arranged at the lower part of the reinforced concrete base plate 1 and inserted into the slope, the grouting steel pipe piles 6 are made of seamless steel pipes, C20 concrete is poured in the steel pipes, and are mainly used to improve the bearing capacity of the foundation, a plurality of retaining plates 2 arranged between the plurality of columns 5 and located on both sides of the base plate 1, and drainage holes 7 arranged on the retaining plates 2, the retaining plates 2 are connected and fixed to the column base plate 1 by reserved dowel bars, a crown beam 3 arranged on the top of the column 5 is mainly used to connect the plurality of columns 5 into a whole to improve the overall stability of the slope, a tension anchor cable 4 is arranged between the two retaining plates 2 to control the deformation of the slope and reduce the stress on the pile body, and finally the space between the two columns 5 is filled with backfill soil 8 to be dense.
[0020] Among them, the top position of the bottom plate 1 is lower than the bottom position of the slope.
[0021] The top of the cap beam 3 is flush with the top of the backfill soil 8 .
[0022] The bottom plate 1 and the two groups of columns 5 are connected to form a groove, and the backfill soil 8 is located inside the groove.
[0023] Among them, a plurality of grouting steel pipe piles 6 are evenly distributed at the bottom end of the base plate 1 at equal distances.
[0024] How it works
[0025] A trough-type support structure is formed by front and rear rows of columns 5, a base plate 1 and a retaining plate 2, so that the horizontal and vertical deformation of the fill body is constrained and the overall force is good. According to the height of the fill slope, one or more rows of tension anchor cables 4 can be set on the columns 5 to better control the deformation of the support structure and expand the application range of the support structure. According to the properties of the foundation soil at the bottom of the slope and the bearing capacity, grouting steel pipe piles 6 can be used for foundation treatment to improve the bearing capacity of the foundation, thereby avoiding slope damage and expanding the applicability of the support structure. In addition, according to the height of the fill slope and the properties of the filler, the cross-sectional size of the columns and the horizontal spacing can be flexibly and reasonably determined to achieve the purpose of safety and economy.
[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A slope support structure, characterized in that: The invention comprises a bottom plate (1) arranged at a slope, wherein the bottom end of the bottom plate (1) is provided with a plurality of grouting steel pipe piles (6) inserted into the slope, a group of columns (5) are respectively arranged on both sides of the top of the bottom plate (1), the tops of the two groups of columns (5) are provided with cap beams (3), the sides of each group of columns (5) are provided with retaining plates (2), and backfill soil (8) is filled between the two groups of columns (5).
2. A slope support structure according to claim 1, characterized in that: A plurality of tension anchor cables (4) are arranged on the inner side of the backfill soil (8), the two ends of which respectively penetrate the retaining plate (2), and the two ends of the plurality of tension anchor cables (4) are respectively connected to the retaining plate (2).
3. A slope support structure according to claim 1, characterized in that: The top end and the bottom end of the side surface of the retaining plate (2) are both provided with drainage holes (7) penetrating the retaining plate (2).
4. A slope support structure according to claim 1, characterized in that: The top end of the bottom plate (1) is lower than the bottom end of the slope.
5. A slope support structure according to claim 1, characterized in that: The top of the crown beam (3) is flush with the top of the backfill soil (8).
6. A slope support structure according to claim 1, characterized in that: The bottom plate (1) and the two groups of columns (5) are connected to form a groove, and the backfill soil (8) is located inside the groove.
7. A slope support structure according to claim 1, characterized in that: The plurality of grouting steel pipe piles (6) are evenly distributed at the bottom end of the base plate (1) at equal distances.