Water-rich soft soil slope supporting and reinforcing structure
By designing the supporting reinforced structure of water-rich and weak soil slopes, including water cut-off components, seepage ditch components and drainage components, the problems of insufficient bearing capacity of the supporting seepage ditch foundation and structural layer cracking are solved, and the foundation bearing capacity is improved and construction risks are reduced.
Patent Information
- Application Number
- CN202421634736.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The water-rich and weak soil slopes have insufficient bearing capacity when supporting seepage ditches, and the supporting seepage ditches are formed by uneven settlement of the undercover bearing layer, resulting in cracking.
A water-rich and weak soil slope support reinforcement structure is designed, including water cut-off components, seepage groove components and drainage components. The water cutter assembly intercepts groundwater by a water cutter corridor arranged at the trailing edge of the slope; the seepage groove assembly adopts support seepage grooves, with a first reverse filter layer at the bottom, a second reverse filter layer at the top and the top near the water cutter corridor, and a support support pile at the base to enhance the bearing capacity of the foundation; the drainage assembly realizes effective water discharge through the Gibing gabion retaining wall, blind grooves and drainage grooves.
By embedded in the stable formation by multiple groups of support piles, the foundation bearing capacity of the supporting seepage groove structure layer is improved, avoiding the cracking phenomenon, and reducing the slope sliding force, reducing construction risks, and improving the durability of the structure.
Smart Images
Figure CN222834927U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of slope protection, in particular to a water-rich soft soil slope support reinforcement structure. Background Art
[0002] Geological disasters caused by saturated soil in slopes frequently occur. After conventional strong support, the slope retaining structure still suffers from shallow landslides, which is particularly serious for water-rich soft soil slopes. The reason is that the water in the soft soil slope is difficult to drain. On the one hand, it accelerates the softening of the soil structure, reduces the cohesion and internal friction angle of the soil, and makes the soil present a plastic state; on the other hand, the force of water pressure on the retaining structure increases. At present, scholars focus on strengthening the drainage of slope volume water, and then use support and retaining measures to drain the slope volume water. They use support seepage ditches, slope seepage ditches, intercepting ditches and other measures to drain the slope volume water, and combine anti-sliding piles and anti-sliding retaining wall support, and use slope hardening to prevent infiltration to strengthen the water damage repair of general slopes. However, for soft soil and water-rich slopes, the soil structure is loose, the foundation bearing capacity is low, and the soil is in a plastic state. Under the vertical action of the above structure, it cannot meet the foundation bearing capacity requirements. At the same time, during construction, it faces problems such as large seepage and easy collapse, and the construction risk is high. In addition, the consolidation settlement of soft soil (underconsolidated fill) causes uneven settlement of the overlying hardened structural layer, which causes cracks in the overlying hardened structural layer and infiltration of rainwater, which increases the water richness of the slope. Utility Model Content
[0003] The main purpose of the utility model is to provide a water-rich soft soil slope support reinforcement structure, which is used to solve the problem that the bearing capacity of the supporting seepage ditch foundation of the water-rich soft soil slope is insufficient, and the supporting seepage ditch structure layer is cracked due to uneven settlement of the underlying bearing layer.
[0004] To achieve the above purpose, the utility model provides a water-rich soft soil slope support reinforcement structure, comprising:
[0005] The water interception assembly comprises a water interception gallery arranged at the rear edge of the slope; the water interception gallery is arranged along the length direction of the slope, and the bottom end of the water interception gallery is sloped along the length direction;
[0006] The seepage ditch assembly comprises support seepage ditches arranged at intervals along the side slope in a transverse direction; the support seepage ditches are arranged longitudinally from the top to the foot of the side slope in a "step-like" manner, the bottom end of the support seepage ditch is provided with a first filter layer, and the top of the support seepage ditch and the top of the adjacent interception gallery are respectively provided with a second filter layer; the base of the support seepage ditch is provided with a cap support; the base of the cap support is provided with a support pile;
[0007] The drainage component comprises a gabion stone cage retaining wall arranged at the bottom end of the supporting seepage ditch, a blind ditch and a drainage ditch connected with the gabion stone cage retaining wall; the gabion stone cage retaining wall is attached to the first filter layer.
[0008] As a further improvement of the utility model, the water-cutting corridor includes a water-cutting frame and a supporting drainage body arranged in the water-cutting frame; the base of the water-cutting frame is located on a stable underlying stratum; and the front edge of the water-cutting frame is provided with through holes arranged in a plum blossom shape.
[0009] As a further improvement of the utility model, the supporting seepage ditch includes a bottom plate frame arranged on the base support, a side plate frame arranged on the bottom plate frame at intervals and detachably, a top plate frame arranged on the side plate frame, and a rear frame arranged on the side adjacent to the rear edge of the slope; an infiltration drainage body is arranged in the supporting seepage ditch; a limiting fixing rod is detachably provided between the rear frame and the adjacent bottom plate frame with a height difference.
[0010] As a further improvement of the utility model, a limiting slot support is provided at the front end of the base frame; a first limiting hole and a second limiting hole are respectively preset at the same vertical position at both ends of the limiting slot support and the rear frame; the limiting fixing rod passes through the first limiting hole and the second limiting hole; a rear groove is provided at the rear end of the base frame; and a clamping protrusion which is clamped with the rear groove is provided at the bottom end of the side plate frame.
[0011] As a further improvement of the utility model, the limiting fixing rod includes a limiting block and a connecting rod arranged at the lower end of the limiting block.
[0012] As a further improvement of the utility model, the upper end of the rear frame is provided with a snap-fitting groove matched with the bottom end of the base frame; the rear frame is provided with a through circular hole along the thickness direction; and a PVC pipe is installed inside the through circular hole.
[0013] As a further improvement of the utility model, the cap support is symmetrically distributed on both lateral sides of the support seepage ditch base; the upper part of the support pile is anchored at the central position of the cap support, and the lower part of the support pile passes through the soft soil layer and is embedded in the stable stratum.
[0014] As a further improvement of the utility model, a through hole is provided at the front edge where the drainage ditch contacts the blind ditch.
[0015] The beneficial effects of the utility model are embodied in:
[0016] The lower ends of multiple groups of support piles penetrate the water-rich soft soil layer and are embedded in the stable stratum, while the upper ends support the support seepage ditch. On the one hand, this solves the technical problems of insufficient bearing capacity of the support seepage ditch foundation for water-rich soft soil slopes, and cracking of the support seepage ditch structure layer under uneven settlement of the underlying bearing layer; on the other hand, it reduces the downward force of the slope;
[0017] The supporting seepage ditch is composed of prefabricated reinforced concrete frames, which is simple, fast and has a short construction period. It avoids the problems of large water seepage and easy collapse during long-term excavation and construction. At the same time, the reinforced concrete frame components are not easy to be cracked and damaged, and have high durability.
[0018] At the same time, the use of gabion stone cage retaining walls as retaining components has low requirements on the bearing capacity of the foundation, good water stability and permeability, and is suitable for the lower support of water-rich slopes. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a cross-sectional schematic diagram of a support and reinforcement structure for a water-rich soft soil slope;
[0020] Figure 2 It is a cross-sectional schematic diagram of a support seepage ditch in a support and reinforcement structure for a water-rich soft soil slope;
[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the top plate frame supporting the seepage ditch in the support and reinforcement structure of a water-rich soft soil slope;
[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the bottom plate frame supporting the seepage ditch in the support and reinforcement structure of a water-rich soft soil slope;
[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of a side plate frame supporting a seepage ditch in a support and reinforcement structure for a water-rich soft soil slope;
[0024] Figure 6 It is a schematic diagram of a three-dimensional structure of a rear frame supporting a seepage ditch in a support and reinforcement structure for a water-rich soft soil slope;
[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of a support seepage ditch in a support and reinforcement structure of a water-rich soft soil slope;
[0026] Figure 8 It is a structural schematic diagram of a limit fixing rod in a support and reinforcement structure of a water-rich soft soil slope;
[0027] Description of reference numerals:
[0028] 1. Water interception corridor; 11. Water interception frame; 12. Support drainage body; 2. Support seepage ditch; 21. Top plate frame; 22. Bottom plate frame; 221. Limiting slot support; 2211. First limiting hole; 23. Side plate frame; 24. Rear frame; 241. Second limiting hole; 25. Infiltration drainage body; 26. Limiting fixing rod; 261. Limiting block; 262. Connecting rod; 3. Cap support; 4. Support pile; 5. Gabion stone cage retaining wall; 6. Blind ditch; 7. Drainage ditch; 8. First filter layer; 9. Second filter layer;. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0030] In one embodiment, see Figure 1 The utility model discloses a water-rich soft soil slope support and reinforcement structure, which comprises a water interception component, a seepage ditch component and a drainage component.
[0031] Among them, the water interception component includes a water interception corridor 1 arranged at the rear edge of the slope; the water interception corridor 1 is arranged along the length direction of the slope, and the bottom end of the water interception corridor 1 is sloped along the length direction; the infiltration ditch component includes supporting infiltration ditches 2 arranged at intervals along the slope, and the supporting infiltration ditches 2 are arranged longitudinally from the top to the foot of the slope in a "step-like" manner. The bottom end of the supporting infiltration ditch 2 is provided with a first filter layer 8, and the top of the supporting infiltration ditch 2 and the top of the adjacent water interception corridor 1 are respectively provided with a second filter layer 9; the base of the supporting infiltration ditch 2 is provided with a pedestal support 3, and the base of the pedestal support 3 is provided with a supporting pile 4; the drainage component includes a gabion stone cage retaining wall 5 arranged at the bottom end of the supporting infiltration ditch 2, a blind ditch 6 and a drainage ditch 7 connected to the gabion stone cage retaining wall 5; the gabion stone cage retaining wall 5 is attached to the first filter layer 8.
[0032] Further, see Figure 1 The water interception corridor 1 includes a water interception frame 11 and a supporting drainage body 12 arranged in the water interception frame 11; the base of the water interception frame 11 is located on a stable underlying stratum, and the front edge of the water interception frame 11 is provided with through holes arranged in a plum blossom shape.
[0033] Preferably, the water cut-off frame 11 is a reinforced concrete member in a "U" shape with a thickness of not less than 300 mm.
[0034] Preferably, the supporting drainage body 12 is made of crushed stone.
[0035] In the above arrangement, groundwater or rainwater on the rear edge slope enters the water intercepting frame 11 through the small holes, and after being filtered and intercepted by the supporting drainage body 12, the groundwater or rainwater is discharged along the slope at the bottom end of the water intercepting frame 11. The water intercepting corridor 1 can intercept the groundwater or rainwater in the rear edge of the slope.
[0036] Further, see Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The supporting seepage ditch 2 includes a bottom plate frame 22 arranged on the base support 3, a side plate frame 23 arranged on the bottom plate frame 22 at intervals and detachably, a top plate frame 21 arranged on the side plate frame 23, and a rear frame 24 arranged on the side adjacent to the rear edge of the slope. An infiltration drainage body 25 is arranged in the supporting seepage ditch 2; a limiting fixing rod 26 is detachably arranged between the rear frame 24 and the adjacent bottom plate frame 22 with a height difference.
[0037] Preferably, connecting grooves are provided on the side ribs of the top plate frame 21 and the bottom plate frame 22, and connecting protrusions are provided at the middle positions of the upper and lower ends of the side plate frame 23 for connecting with the connecting grooves of the side ribs of the top plate frame 21 and the bottom plate frame 22; the infiltration drainage body 25 fills the space enclosed by the top plate frame 21, the bottom plate frame 22, the side plate frame 23 and the rear frame 24.
[0038] Further, see Figure 4 and Figure 7 A limiting slot support 221 is provided at the front end of the bottom plate frame 22, and a first limiting hole 2211 and a second limiting hole 241 are respectively preset at the same vertical position at both ends of the limiting slot support 221 and the rear frame 24. The limiting fixing rod 26 passes through the first limiting hole 2211 and the second limiting hole 241. A rear groove is provided at the rear end of the bottom plate frame 22, and a clamping protrusion that is clamped with the rear groove is provided at the bottom end of the side plate frame 23.
[0039] Preferably, the limiting fixing rod 26 passes through the first limiting hole 2211 and the second limiting hole 241 to fix the bottom plate frame 22 of the rear unit and the rear frame 24 of the front unit.
[0040] Further, see Figure 4 The bottom end of the bottom plate frame 22 and the top end of the top plate frame 21 are both provided with water guide grooves; they are "V"-shaped in the horizontal direction, and the bottom end of the bottom plate frame 22 is provided with a slope in the longitudinal direction.
[0041] Preferably, the water guide groove is in a "V" shape.
[0042] In the above arrangement, a water guide trough is provided at the bottom end of the bottom plate frame 22, so that rainwater and groundwater on both sides of the slope can be collected to the slope in the supporting seepage ditch 2. The bottom end of the bottom plate frame 22 is provided with a slope in the longitudinal direction to prevent water from being retained in the infiltration drainage body 25 and facilitate drainage;
[0043] Further, see Figure 8 The limiting fixing rod 26 includes a limiting block 261 and a connecting rod 262 disposed at the lower end of the limiting block 261 .
[0044] Preferably, the limit block 261 is a "rectangular body" with dimensions corresponding to those of the limit slot support 221 on the base frame 22; the connecting rod 262 is a "cylindrical body" with a length equal to the sum of the lengths of the first limit hole 2211 and the second limit hole 241.
[0045] Further, see Figure 6 The upper end of the rear frame 24 is provided with a snap-fitting groove that cooperates with the bottom end of the bottom plate frame 22; the rear frame 24 is provided with a through circular hole along the thickness direction, and a PVC pipe is installed inside the through circular hole.
[0046] Preferably, the engaging groove is a "V"-shaped groove, and the through circular holes are arranged in a "plum blossom" shape.
[0047] Preferably, the top plate frame 21, the bottom plate frame 22, the side plate frame 23 and the rear frame 24 are all prefabricated reinforced concrete components, the thickness of the top plate frame 21 and the side plate frame 23 is not less than 400 mm, and the thickness of the bottom plate frame 22 and the rear frame 24 is not less than 500 mm.
[0048] In the above arrangement, the top plate frame 21, the bottom plate frame 22, the side plate frame 23 and the rear frame 24 form an internal space for placing the infiltration drainage body 25. The supporting infiltration ditches 2 are arranged in a "stepped" manner, and adjacent supporting infiltration ditches 2 have a height difference. The connecting rod 262 passes through the first limiting hole 2211 and the second limiting hole 241, which is used to fix the bottom plate frame 22 of the rear unit and the rear frame 24 of the front unit.
[0049] Further, see Figure 2 The cap supports 3 are symmetrically distributed on both sides of the base of the supporting seepage ditch 2, the upper part of the supporting pile 4 is anchored at the central position of the cap support 3, and the lower part of the supporting pile 4 passes through the soft soil layer and is embedded in the stable stratum.
[0050] Preferably, the support pile 4 is a steel pipe pile with circular holes along the length and circumference. The interior of the support pile 4 is filled with gravel or pebbles, and the maximum particle size of the gravel or pebbles does not exceed 2 / 3 of the diameter of the steel pipe. At the same time, the outside of the support pile 4 is wrapped with anti-filter geotextile.
[0051] Preferably, the first filter layer 8 and the second filter layer 9 are rectangular, with the internal filling material being gravel or pebbles, and the external part being wrapped with filter geotextile;
[0052] Preferably, the infiltration drainage body 25 and the support drainage body 12 are both pebbles that are not easily weathered, with a maximum particle size not exceeding 40 cm, and not exceeding 2 / 3 of the size of the support infiltration and interception corridors 1 respectively.
[0053] Furthermore, a through hole is provided at the front edge where the drainage ditch 7 contacts the blind ditch 6 , so as to support rainwater and groundwater in the infiltration ditch 2 to pass through the through hole into the blind ditch 6 and be discharged through the drainage ditch 7 .
[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A water-rich soft soil slope support and reinforcement structure, characterized in that: include: The water interception assembly comprises a water interception gallery (1) arranged at the rear edge of the slope; the water interception gallery (1) is arranged along the length direction of the slope, and the bottom end of the water interception gallery (1) is sloped along the length direction; The seepage ditch assembly comprises support seepage ditches (2) arranged at intervals along the side slope in a transverse direction; the support seepage ditches (2) are arranged longitudinally from the top to the foot of the side slope in a "step-like" manner; a first filter layer (8) is provided at the bottom of the support seepage ditch (2); a second filter layer (9) is provided at the top of the support seepage ditch (2) and at the top of an adjacent water interception gallery (1); a cap support (3) is provided at the base of the support seepage ditch (2); and a support pile (4) is provided at the base of the cap support (3); The drainage assembly comprises a gabion retaining wall (5) arranged at the bottom end of a supporting seepage ditch (2), a blind ditch (6) and a drainage ditch (7) connected to the gabion retaining wall (5); the gabion retaining wall (5) is attached to a first filter layer (8).
2. A water-rich soft soil slope support and reinforcement structure according to claim 1, characterized in that: The water interception gallery (1) comprises a water interception frame (11) and a supporting drainage body (12) arranged in the water interception frame (11); the base of the water interception frame (11) is located on a stable underlying stratum; and the front edge of the water interception frame (11) is provided with through holes arranged in a plum blossom shape.
3. A water-rich soft soil slope support and reinforcement structure according to claim 2, characterized in that: The supporting seepage ditch (2) comprises a bottom plate frame (22) arranged on a pedestal support (3), a side plate frame (23) arranged on the bottom plate frame (22) at intervals and detachably, a top plate frame (21) arranged on the side plate frame (23), and a rear frame (24) arranged on the side adjacent to the rear edge of the slope; an infiltration drainage body (25) is arranged in the supporting seepage ditch (2); a limit fixing rod (26) is detachably arranged between the rear frame (24) and the adjacent bottom plate frame (22) with a height difference.
4. The water-rich soft soil slope support and reinforcement structure according to claim 3 is characterized by: A limiting slot support (221) is provided at the front end of the bottom plate frame (22); a first limiting hole (2211) and a second limiting hole (241) are respectively preset at the same vertical position at both ends of the limiting slot support (221) and the rear frame (24); the limiting fixing rod (26) passes through the first limiting hole (2211) and the second limiting hole (241); a rear groove is provided at the rear end of the bottom plate frame (22); and a clamping protrusion clamped with the rear groove is provided at the bottom end of the side plate frame (23).
5. The water-rich soft soil slope support and reinforcement structure according to claim 4 is characterized by: The limiting fixing rod (26) comprises a limiting block (261) and a connecting rod (262) disposed at the lower end of the limiting block (261).
6. The water-rich soft soil slope support and reinforcement structure according to claim 5 is characterized by: The upper end of the rear frame (24) is provided with a snap-fitting groove that matches the bottom end of the base frame (22); the rear frame (24) is provided with a through circular hole along the thickness direction; and a PVC pipe is installed inside the through circular hole.
7. The water-rich soft soil slope support and reinforcement structure according to claim 6 is characterized by: The cap support (3) is symmetrically distributed on both lateral sides of the base of the supporting seepage ditch (2); the upper part of the supporting pile (4) is anchored at the central position of the cap support (3), and the lower part of the supporting pile (4) passes through the soft soil layer and is embedded in the stable stratum.
8. The water-rich soft soil slope support and reinforcement structure according to claim 7 is characterized by: A through hole is provided at the front edge of the drainage ditch (7) where it contacts the blind ditch (6).