Slope supporting structure

Abstract

The utility model provides a side slope supporting structure, and relates to the technical field of side slope protection construction. The slope supporting structure comprises a construction soil layer, an anchor rod and at least one curing block. The construction soil layer is provided with a groove body, the side wall of the groove body comprises an original soil layer and a curing block, and the curing block is located between the groove body and the original soil layer; one side, away from the original soil layer, of each curing block is provided with at least one slope, the slopes form included angles with the vertical direction and the horizontal direction, the slopes are provided with drainage holes, and the axes of the drainage holes form included angles with the slopes; the anchor rod penetrates through the curing block, extends into the original soil layer and is perpendicular to the inclined face. According to the slope supporting structure, the technical problems that in the prior art, excavation construction in a soft soil layer or a waste slag stacking area is low in safety and high in cost are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection construction, in particular to a slope supporting structure. Background Art

[0002] During engineering construction, sites or lines often pass through soft soil layers or waste slag landfill areas. If the site is to reach the designed elevation, the soft soil layer or waste slag needs to be excavated.

[0003] Due to the high moisture content and poor physical and mechanical properties of soft soil layers or waste slag landfill areas, it is impossible to excavate in the same way as ordinary soil slopes. Basically, the entire slope needs to be excavated and cleaned, resulting in a large amount of waste slag, which needs to be disposed of in another area. Alternatively, if strong support is considered for the slope, it is necessary to use pile-board walls or retaining walls to support the slope, which has the problems of high cost and high risk of drilling construction. Utility Model Content

[0004] The utility model aims to provide a slope support structure to alleviate the technical problems of low safety and high cost in excavation construction in soft soil layers or waste slag filling areas in the prior art.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0006] The slope support structure provided by the utility model comprises a construction soil layer, an anchor rod and at least one solidification block;

[0007] The construction soil layer has a trough body, and the side wall of the trough body includes an original soil layer and the solidified block, and the solidified block is located between the trough body and the original soil layer;

[0008] At least one inclined surface is provided on a side of the solidification block away from the original soil layer, the inclined surface is arranged at an angle with both the vertical direction and the horizontal direction, and the inclined surface is provided with a drainage hole, and the axis of the drainage hole is arranged at an angle with the inclined surface;

[0009] The anchor rod passes through the solidification block and extends into the original soil layer and is perpendicular to the slope.

[0010] Furthermore, the axis of the drainage hole gradually tilts upward from an end close to the inclined surface to an end away from the inclined surface.

[0011] Furthermore, a plurality of the drainage holes are provided, and the axes of the plurality of drainage holes are parallel.

[0012] Furthermore, the curing block is provided with a plurality of inclined surfaces, and the plurality of inclined surfaces are arranged in parallel.

[0013] Furthermore, the curing block is provided with a plurality of inclined surfaces, and a first plane is provided between two adjacent inclined surfaces.

[0014] Furthermore, a plurality of the curing blocks are provided, and the plurality of the curing blocks are arranged in a stepped manner.

[0015] Furthermore, the curing block is provided with an inclined surface, and the inclined surfaces of a plurality of curing blocks are parallel.

[0016] Furthermore, the top surface of the curing block is set as a second plane.

[0017] Furthermore, the anchor rods are provided in plurality, and the plurality of anchor rods are arranged in parallel.

[0018] Furthermore, the construction soil layer is filled with a curing agent and stirred to form the curing block.

[0019] Based on the above technical solutions, the technical effects that can be achieved by the present invention are analyzed as follows:

[0020] The slope support structure provided by the utility model includes a construction soil layer, an anchor rod and at least one solidification block; the construction soil layer has a trough body, and the side wall of the trough body includes an original soil layer and a solidification block, and the solidification block is located between the trough body and the original soil layer; at least one inclined surface is provided on the side of the solidification block away from the original soil layer, and the inclined surface is set at an angle with both the vertical direction and the horizontal direction, and the inclined surface is provided with a drainage hole, and the axis of the drainage hole is set at an angle with the inclined surface; the anchor rod passes through the solidification block and extends into the original soil layer, and is perpendicular to the inclined surface. The side wall of the trough body of the construction soil layer includes a solidification block, and the inclined surface of the solidification block forms a slope. The formation process of the slope support structure is: solidify the construction soil layer to form a solidification block, when the strength of the solidification block reaches the requirement, excavate the construction soil layer to form a trough body, and cut the solidification block to form an inclined surface; pass the anchor rod through the solidification block and extend it into the original soil layer, and process the drainage hole. When there are multiple solidification blocks, it is necessary to process them one by one from top to bottom to form solidification blocks, and excavate the construction soil layer step by step according to the solidification blocks.

[0021] The slope support structure can effectively block the original soil layer with the solidified blocks, thus improving the stability of the slope; and the drainage holes can effectively reduce the back water pressure of the solidified blocks, which is beneficial to the drainage of the soil behind the solidified blocks and more beneficial to the stability of the slope.

[0022] The slope support structure has a wide range of applications, and can be used in soft soil excavation sections, waste slag fill sections, or high liquid limit soil sections.

[0023] The slope support structure is easy to construct, does not require large-scale excavation, and the construction sequence is scientific, safe and effective.

[0024] The slope support structure has a higher slope support height than the traditional strong support pile-sheet wall or retaining wall. Through multiple graded solidification, the slope can be excavated and supported at multiple levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic cross-sectional view of a slope support structure provided by an embodiment of the utility model;

[0027] Figure 2 A cross-sectional view of a drainage hole in a slope support structure provided by an embodiment of the utility model;

[0028] Figure 3 An elevation view of a drainage hole in a slope support structure provided by an embodiment of the utility model;

[0029] Figure 4 Schematic diagram of the structure of the solidified block in the slope support structure provided by the embodiment of the utility model Figure 1 ;

[0030] Figure 5 Schematic diagram of the structure of the solidified block in the slope support structure provided by the embodiment of the utility model Figure 2 ;

[0031] Figure 6 Construction steps of the slope support structure provided by the embodiment of the utility model Figure 1 ;

[0032] Figure 7 Construction steps of the slope support structure provided by the embodiment of the utility model Figure 2 ;

[0033] Figure 8 Construction steps of the slope support structure provided by the embodiment of the utility model Figure 3 ;

[0034] Fig. 9 Construction steps of the slope support structure provided by the embodiment of the utility model Figure 4 ;

[0035] Fig.10 Construction steps of the slope support structure provided by the embodiment of the utility model Figure 5 ;

[0036] Fig.11 Construction steps of the slope support structure provided by the embodiment of the utility model Figure 6 .

[0037] icon:

[0038] 100-anchor rod; 200-solidification block; 210-inclined surface; 220-first plane; 230-second plane; 240-third plane; 250-drainage hole; 300-original soil layer; 400-stabilized soil layer; 500-trough body;

[0039] a-vertical direction; b-horizontal direction. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0047] Existing methods for setting up road cutting slopes on soft soil layers or waste slag landfill areas include setting up pile-sheet walls, completely excavating the slope, or setting up retaining walls; among them, the pile-sheet wall has high costs, and the construction process is difficult and there is a risk of collapse; the solution of completely excavating the slope has high costs, and the waste soil needs to be disposed of, which is not economical and environmentally friendly; the retaining wall solution is only suitable for working conditions with small excavation heights, and due to the poor self-stability of the slope, the retaining wall construction is difficult, and the soil behind the wall needs to be excavated first and then backfilled.

[0048] In view of this, the slope support structure provided by the embodiment of the utility model includes a construction soil layer, an anchor rod 100 and at least one solidification block 200; the construction soil layer has a trough body 500, and the side wall of the trough body 500 includes an original soil layer 300 and a solidification block 200, and the solidification block 200 is located between the trough body 500 and the original soil layer 300; at least one inclined surface 210 is provided on the side of the solidification block 200 away from the original soil layer 300, and the inclined surface 210 is set at an angle to both the vertical direction a and the horizontal direction b, and the inclined surface 210 is provided with a drainage hole 250, and the axis of the drainage hole 250 is set at an angle to the inclined surface 210; the anchor rod 100 passes through the solidification block 200 and extends into the original soil layer 300, and is perpendicular to the inclined surface 210.

[0049] Specifically, see Figure 1 It is worth noting that Figure 1 The middle dotted line indicates a preset solidification area. After the preset solidification area is solidified, a solidification block 200 is formed after the slope is cut. That is, the solidification block 200 is formed by in-situ solidification of the construction soil layer, and the original soil layer 300 is soft soil or loose soil.

[0050] The side wall of the trough 500 of the construction soil layer includes a solidification block 200, and the inclined surface 210 of the solidification block 200 forms a slope. The formation process of the slope support structure is: the construction soil layer is solidified to form a solidification block 200, and when the strength of the solidification block 200 reaches the requirement, the construction soil layer is excavated to form a trough 500, and the solidification block 200 is cut to form an inclined surface 210; the anchor rod 100 is passed through the solidification block 200 and extended into the original soil layer 300, and the drainage hole 250 is processed. When there are multiple solidification blocks 200, it is necessary to process the solidification blocks 200 one by one from top to bottom, and the construction soil layer is excavated step by step according to the solidification blocks 200. The slope support structure improves the stability of the slope because the solidification block 200 can effectively block the original soil layer 300; and the drainage hole 250 can effectively reduce the back water pressure of the solidification block 200, which is conducive to the drainage of the back body soil of the solidification block 200, and is more conducive to the stability of the slope. The slope support structure has a wide range of applications, whether it is a soft soil excavation section, a waste dump, or a high liquid limit soil section. The slope support structure is easy to construct without large excavation, and the construction sequence is scientific, safe and effective. The slope support height of the slope support structure is higher than that of the traditional strong support pile-sheet wall or retaining wall. Through multiple graded solidification, the slope can be excavated and supported at multiple levels.

[0051] The structure and shape of the slope support structure are described in detail below:

[0052] In the optional scheme of the embodiment of the utility model, please see Figure 2 The axis of the drainage hole 250 gradually tilts upward from an end close to the inclined surface 210 to an end away from the inclined surface 210 .

[0053] Specifically, see Figure 3 The drainage holes 250 are provided in plurality, and the axes of the plurality of drainage holes 250 are parallel. In this embodiment, the drainage holes 250 are provided in two rows, and each row of drainage holes 250 is provided with a plurality of drainage holes.

[0054] The drainage hole 250 is arranged to be tilted upward, which is helpful for drainage.

[0055] In an optional solution of the embodiment of the present utility model, the curing block 200 is provided with a plurality of inclined surfaces 210 , and the plurality of inclined surfaces 210 are arranged in parallel.

[0056] Specifically, see Figure 5 , there is a first plane 220 between two adjacent inclined planes 210, so that multiple inclined planes 210 are parallel. Of course, the multiple inclined planes 210 are arranged at an angle, and there is a first plane 220 between two adjacent inclined planes 210; or, the multiple inclined planes 210 are arranged at an angle and two adjacent inclined planes 210 are directly connected, which should be within the protection scope of the embodiment of the utility model.

[0057] The plurality of inclined surfaces 210 are arranged in parallel to make the slope regular as a whole.

[0058] In an optional solution of the embodiment of the utility model, a plurality of curing blocks 200 are provided, and the plurality of curing blocks 200 are arranged in a stepped manner.

[0059] Specifically, see Figure 4 , two adjacent solidification blocks 200 have mutually contacting parts, so as to avoid the weak strength between the two adjacent solidification blocks 200, which cannot support the original soil layer 300. Among them, the multiple solidification blocks 200 are arranged in a stepped manner, which means that along the horizontal direction b, the multiple solidification blocks 200 are arranged closely, and along the vertical direction a, the multiple solidification blocks 200 are arranged in sequence and the top surface of the solidification blocks 200 gradually rises.

[0060] The plurality of solidifying blocks 200 are arranged in a stepped manner, so that the plurality of solidifying blocks 200 form a slope.

[0061] In an optional solution of the embodiment of the present utility model, the curing block 200 is provided with an inclined surface 210 , and the inclined surfaces 210 of a plurality of curing blocks 200 are parallel.

[0062] The inclined surfaces 210 of the plurality of curing blocks 200 are parallel, so that the slope is overall regular.

[0063] In an optional solution of the embodiment of the present utility model, the top surface of the curing block 200 is set as the second plane 230.

[0064] Specifically, the right angle of the curing block 200 is cut off to form the inclined surface 210 , and the top surface of the curing block 200 is the second plane 230 , and the bottom surface is the third plane 240 .

[0065] The top surface of the solidification block 200 is set as the second plane 230, so that the cross section of the solidification block 200 is trapezoidal, so as to avoid the top thickness of the solidification block 200 being too small to support the original soil layer 300.

[0066] In an optional solution of the embodiment of the utility model, a plurality of anchor rods 100 are provided, and the plurality of anchor rods 100 are arranged in parallel.

[0067] Specifically, the anchor 100 includes a drill bit, an anchor 100 body, a coupling sleeve, a grout stopper, an arched pad and a nut, wherein the drill bit is mounted on one end of the anchor 100 body, and the coupling sleeve, the grout stopper, the arched pad and the nut are sequentially sleeved on the anchor 100 body. Of course, other supporting structures that play a reinforcing role on the rock slope, such as anchor cables, should also be within the protection scope of the embodiments of the utility model.

[0068] A plurality of anchor rods 100 are provided to improve the reinforcement effect.

[0069] In an optional solution of the embodiment of the utility model, a curing agent is filled in the construction soil layer and stirred to form a curing block 200.

[0070] Specifically, the curing agent may be set as cement slurry, etc. Furthermore, the construction soil layer further includes a stabilized soil layer 400 , and the stabilized soil layer 400 is located below the curing block 200 and the original soil layer 300 .

[0071] By filling the curing agent and stirring to form the curing block 200, the construction soil layer is solidified on site, the generation of slag is avoided and excavation while supporting is achieved.

[0072] The following is an example of the construction process of the slope support structure, wherein a plurality of solidifying blocks 200 are provided:

[0073] See also Figure 6 , perform plane positioning according to the design, determine the excavation edge of the first-level slope and the position of the solidification block 200, start from the original ground, and perform in-situ solidification of the preset solidification block 200 area of ​​the first-level slope (starting from top to bottom) according to the designed depth.

[0074] See also Figure 7 After the soil solidification strength reaches the requirement, the first-level slope is excavated according to the designed slope rate and height, and the solidification blocks 200 of the first-level slope are cut.

[0075] See also Figure 8 After excavating to the first-level slope platform, the preset solidification area of ​​the second-level slope can be determined, and the second-level slope can be solidified in situ according to the designed depth; after the second-level slope is solidified in situ to the construction strength, the anchor rods 100 can be installed on the first-level slope surface, and the drainage holes 250 on the first-level slope surface can be completed according to the designed spacing, density and length.

[0076] See also Fig. 9 After the first level slope support construction is completed, wait for the solidification area of ​​the second level slope to meet the requirements, then excavate the second level slope according to the slope rate and height of the designed slope, and cut the solidification block 200 of the second level slope.

[0077] See also Fig.10 and Fig.11 Then, the third-level slope solidification, second-level slope support, drainage hole 250 construction, etc. are carried out in the above order until the excavated slope reaches the designed elevation.

[0078] During construction, temporary drainage of construction work surfaces at all levels must be done well, and finally, platform drainage at all levels should be done well to ensure smooth drainage of the slope.

[0079] Taking into account the risks involved in excavating slopes of various soft soils, waste fills, and high liquid limit soils, large-scale slope excavation should be avoided during construction. Construction work should be carried out in sections and on multiple working surfaces, and the sequence of slope solidification and slope surface solidification should be reasonably arranged to improve construction efficiency.

[0080] The slope support structure and construction method are suitable for various soft soils, waste fills, and high liquid limit soil excavation. It has the advantages of strong applicability to working conditions, safe, efficient and convenient construction, and low cost. As the geological engineering environment becomes more complex, the application prospects of the slope support structure are also quite promising.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A slope support structure, characterized in that: include: A construction soil layer, an anchor rod (100) and at least one solidification block (200); The construction soil layer has a trough body (500), and the side wall of the trough body (500) includes an original soil layer (300) and the solidification block (200), and the solidification block (200) is located between the trough body (500) and the original soil layer (300); At least one inclined surface (210) is provided on a side of the solidification block (200) away from the original soil layer (300), the inclined surface (210) is arranged at an angle with both the vertical direction (a) and the horizontal direction (b), and the inclined surface (210) is provided with a drainage hole (250), and the axis of the drainage hole (250) is arranged at an angle with the inclined surface (210); The anchor rod (100) passes through the solidification block (200) and extends into the original soil layer (300), and is perpendicular to the inclined surface (210).

2. The slope support structure according to claim 1, characterized in that: The axis of the drainage hole (250) gradually inclines upward from an end close to the inclined surface (210) to an end away from the inclined surface (210).

3. The slope support structure according to claim 2, characterized in that: A plurality of drainage holes (250) are provided, and the axes of the plurality of drainage holes (250) are parallel.

4. The slope support structure according to claim 1, characterized in that: The curing block (200) is provided with a plurality of inclined surfaces (210), and the plurality of inclined surfaces (210) are arranged in parallel.

5. The slope support structure according to claim 4, characterized in that: The solidification block (200) is provided with a plurality of inclined surfaces (210), and a first plane (220) is provided between two adjacent inclined surfaces (210).

6. The slope support structure according to claim 1, characterized in that: A plurality of the curing blocks (200) are provided, and the plurality of the curing blocks (200) are arranged in a stepped manner.

7. The slope support structure according to claim 6, characterized in that: The curing block (200) is provided with an inclined surface (210), and the inclined surfaces (210) of a plurality of curing blocks (200) are parallel.

8. The slope support structure according to any one of claims 1 to 7, characterized in that: The top surface of the curing block (200) is set as a second plane (230).

9. The slope support structure according to any one of claims 1 to 7, characterized in that: A plurality of anchor rods (100) are provided, and the plurality of anchor rods (100) are arranged in parallel.

10. The slope support structure according to any one of claims 1 to 7, characterized in that: The construction soil layer is filled with a curing agent and stirred to form the curing block (200).

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