Anti-sedimentation dam body step structure
By introducing a bearing base layer, a rainwater collection layer and a reinforcement structure into the embankment structure, combined with a permeable pipe drainage system, the problems of settlement and cracking of the embankment caused by erosion were solved, and the stability and anti-collapse effect of the embankment were achieved.
Patent Information
- Application Number
- CN202422691989.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Existing embankments are easily eroded and cracks are formed when immersed in water, leading to softening of embankment soil and settlement of bridge heads.
The anti-subsidence dam adopts a stepped structure, which consists of a bearing foundation layer, a rainwater collection layer, a compacted cushion layer and a road paving surface layer. Combined with the reinforcement structure of reinforcing bars and limit blocks, infiltration pipes are used to collect and discharge the accumulated water in the dam, reduce humidity and prevent the soil layer from loosening.
It has a simple structure, low cost and convenient construction, and can effectively solve the settlement and cracking problems at the junction of the dam steps in the long term and prevent collapse.
Smart Images
Figure CN223358200U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dam construction, in particular to an anti-settling dam body step structure. Background Art
[0002] In the prior art, dams close to water bodies are subject to long-term immersion in water, which can easily lead to erosion and cracks in the dams. River water seeps into the embankments through the cracks, causing the embankment soil to soften and resulting in bridgehead settlement. Utility Model Content
[0003] The main technical problem solved by the utility model is to provide an anti-subsidence dam step structure, which has low cost and simple construction, and can effectively solve the technical problems of subsidence and cracking at the junction of the dam step in the long term.
[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: a step structure of an anti-subsidence dam body, which is composed of a road structure and a bridge and culvert structure, and includes, from bottom to top, a bearing foundation layer, a rainwater collection layer, a compacted cushion layer and a road paving surface layer. The compacted cushion layer is a reinforced concrete layer. A reinforcement structure is arranged between the compacted cushion layer and the road paving surface layer. The reinforcement structure includes reinforcing ribs vertically arranged below the road paving surface layer and a limit block vertically arranged on the compacted cushion layer and located behind the reinforcing ribs. The lower ends of the reinforcing ribs are arranged in parallel and staggered with the limit blocks and are in contact with the front end faces of the limit blocks.
[0005] In a preferred embodiment of the present invention, the reinforcing ribs are cast in the compacted cushion layer, and the limiting blocks are inserted in the rainwater collection layer and then fixed by cement pouring.
[0006] In a preferred embodiment of the present invention, the rainwater collection layer is paved with graded crushed stone, an infiltration pipe is provided in the rainwater collection layer, and a plurality of infiltration holes are opened above the infiltration pipe, and the infiltration holes are used to collect rainwater that infiltrates through the rainwater collection layer.
[0007] In a preferred embodiment of the present invention, the permeation tube is covered with a geomembrane layer.
[0008] In a preferred embodiment of the present invention, the compacted cushion layer is backfilled with graded hard particles, graded ballast or sand and gravel.
[0009] In a preferred embodiment of the present invention, the road paving surface layer is a composite asphalt layer composed of an 80mm thick coarse asphalt layer and a 60mm thick fine asphalt layer.
[0010] In a preferred embodiment of the present invention, an anti-skid layer is laid on the road paving surface.
[0011] The beneficial effects of the utility model are as follows: the anti-subsidence dam step structure of the utility model has a simple structure, low cost and convenient construction, has good structural strength, and can effectively solve the technical problems of subsidence and cracking at the junction of the city dam step in the long term; the infiltration pipe inserted in the dam collects the accumulated water in the dam and discharges it through the connected municipal drainage pipe, thereby reducing the humidity in the dam and making the soil layer in the dam tighter, which is not easy to cause collapse. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:
[0013] Figure 1 It is a cross-sectional view of a step structure of an anti-settlement dam body of the present utility model. DETAILED DESCRIPTION
[0014] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0015] See also Figure 1 The utility model discloses an anti-settling dam step structure, which comprises, from bottom to top, a bearing foundation layer 1, a rainwater collecting layer 2, a compacted cushion layer 3 and a road paving surface layer 4. The utility model adopts a cast-in-place or prefabricated construction method to complete the construction, which can effectively ensure that the road surface does not sink in the later stage. Among them, the foundation layer is compacted with plain soil, and the rainwater collecting layer is paved with graded crushed stone. A plurality of infiltration pipes 21 are arranged side by side in the rainwater collecting layer, and a plurality of infiltration holes are opened above the infiltration pipes. The infiltration pipes are covered with a geomembrane layer to prevent soil from flowing into the infiltration pipes with rainwater. The geomembrane layer can effectively prevent water and soil loss. The two ends of the infiltration pipes are connected to the municipal drainage pipe for collecting and discharging rainwater that infiltrates through the rainwater collecting layer. The infiltration pipes inserted in the dam collect the accumulated water in the dam and discharge it through the connected municipal drainage pipe, thereby reducing the humidity in the dam and making the soil layer in the dam tighter, which is not easy to cause collapse.
[0016] Specifically, the compacted cushion layer 3 is a reinforced concrete layer, and multiple groups of reinforcement structures are arranged between the compacted cushion layer and the road paving surface layer. The reinforcement structure includes a reinforcing rib 5 vertically arranged below the road paving surface layer and a limit block 6 vertically arranged on the compacted cushion layer and located behind the reinforcing rib. The lower end of the reinforcing rib is parallel to and staggered with the limit block and contacts with the front end surface of the limit block. The reinforcing rib is cast in the compacted cushion layer, and the limit block is inserted in the rainwater collection layer and then fixed by cement pouring. The limit block presses against the reinforcing rib to reduce the sinking of the dam step structure, thereby reducing the depression and collapse of the road surface.
[0017] Specifically, the compacted cushion layer is backfilled with graded hard particles, graded ballast or sand and gravel, and the road surface layer is a composite asphalt layer composed of an 80mm thick coarse asphalt layer and a 60mm thick fine asphalt layer.
[0018] Specifically, an anti-skid layer 7 is laid on the road surface layer to effectively prevent pedestrians from slipping.
[0019] The beneficial effects of the anti-subsidence dam step structure of the utility model are as follows: the anti-subsidence dam step structure of the utility model has a simple structure, low cost and convenient construction, has good structural strength, and can effectively solve the technical problems of subsidence and cracking at the junction of the city dam step in the long term; the infiltration pipe inserted in the dam collects the accumulated water in the dam and discharges it through the connected municipal drainage pipe, thereby reducing the humidity in the dam and making the soil layer in the dam tighter, which is not easy to cause collapse.
[0020] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A step structure for anti-subsidence dam, consisting of a road structure and a bridge and culvert structure, characterized in that: From bottom to top, it includes a bearing foundation layer, a rainwater collection layer, a compacted cushion layer and a road paving surface layer. The compacted cushion layer is a reinforced concrete layer. A reinforcement structure is arranged between the compacted cushion layer and the road paving surface layer. The reinforcement structure includes reinforcing ribs vertically arranged below the road paving surface layer and a limit block vertically arranged on the compacted cushion layer and located behind the reinforcing ribs. The lower ends of the reinforcing ribs are arranged parallel to and staggered with the limit blocks and are in contact with the front end faces of the limit blocks.
2. The anti-settlement dam step structure according to claim 1, characterized in that: The reinforcing ribs are cast in the compacted cushion layer, and the limiting blocks are inserted in the rainwater collection layer and then fixed by pouring cement.
3. The anti-settlement dam step structure according to claim 1, characterized in that: The rainwater collection layer is paved with graded crushed stones. An infiltration pipe is provided in the rainwater collection layer. A plurality of infiltration holes are provided above the infiltration pipe. The infiltration holes are used to collect rainwater that infiltrates through the rainwater collection layer.
4. The anti-settlement dam step structure according to claim 3, characterized in that: The infiltration pipe is covered with a geomembrane layer.
5. The anti-settlement dam step structure according to claim 1, characterized in that: The compacted cushion layer is backfilled with graded hard particles, graded ballast or sand and gravel.
6. The anti-settlement dam step structure according to claim 1, characterized in that: The road paving surface layer is a composite asphalt layer composed of an 80mm thick coarse asphalt layer and a 60mm thick fine asphalt layer.
7. The anti-settlement dam step structure according to claim 1, characterized in that: An anti-skid layer is laid on the road paving surface layer.