CN107700523B - Drainage system of prefabricated upward inclined retaining wall and construction method - Google Patents
Drainage system of prefabricated upward inclined retaining wall and construction method Download PDFInfo
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- CN107700523B CN107700523B CN201710877668.8A CN201710877668A CN107700523B CN 107700523 B CN107700523 B CN 107700523B CN 201710877668 A CN201710877668 A CN 201710877668A CN 107700523 B CN107700523 B CN 107700523B
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- wall body
- wall
- material layer
- bin
- retaining wall
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0283—Retaining or protecting walls characterised by constructional features of mixed type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Retaining Walls (AREA)
Abstract
The invention relates to a drainage system of a prefabricated upward-inclined retaining wall, which comprises a total wall body, wherein the total wall body comprises a first wall body, a second wall body and a third wall body which are sequentially arranged on a retaining wall foundation at intervals from front to back, the back of the third wall body is a supported soil body, a front bin is formed between the first wall body and the second wall body, a compact material layer is filled in the front bin, a rear bin is formed between the second wall body and the third wall body, a water permeability material layer is filled in the rear bin, between the third wall body and the supported soil body, a reverse-filtering geotechnical material layer is paved on the back of the third wall body, a plurality of drainage holes are formed in the third wall body, and a plurality of drainage pipes for draining water bodies in the rear bin are buried at the bottom of the front bin; the invention also relates to a construction method of the drainage system of the prefabricated upward inclined retaining wall. The invention has simple and reasonable structural design, simple and convenient construction and high safety, and simultaneously avoids forming mud marks on the wall surface of the first wall body, thereby having good visual effect.
Description
Technical Field
The invention relates to a drainage system of a prefabricated upward inclined retaining wall and a construction method.
Background
The inclined gravity retaining wall is a commonly used retaining structure. In order to avoid the safety problem caused by the fact that accumulated water cannot be discharged after the retaining wall, the retaining wall is provided with a drainage system. The conventional retaining wall drainage system is characterized in that the drain holes are buried in the retaining wall according to a certain interval, the inner ends of the drain holes extend into soil body behind the retaining wall, the front ends of the drain holes extend into the retaining wall surface, and the drained water drops fall down freely along the wall surface. This type of retaining wall has mainly the following problems:
1. the construction quality is difficult to ensure: because the rear drainage system of the retaining wall is inconvenient to construct and belongs to a concealed project, part of the drainage system of the retaining wall is not arranged, and the safety of the retaining wall is directly affected;
2. the drain hole is easy to be blocked: the drain hole of the retaining wall is easy to be blocked by fine particles due to the fact that the drain hole is not smooth due to stones with proper sizes, and meanwhile, the holes of the back filtering facilities behind the drain pipe are easy to be blocked by fine particles, so that the water permeability effect of the retaining wall is reduced;
3. influence the urban landscape: the upper layer water discharge hole directly stretches out of the wall surface to easily form mud marks, so that urban road landscapes are affected.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the invention is to provide a drainage system and a construction method of a prefabricated upward-inclined retaining wall, which are reasonable in structural design, efficient and convenient.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a drainage system of prefabricated inclined retaining wall, includes total wall body, total wall body contains from the front to back interval in proper order and sets up first wall body, second wall body and third wall body on the retaining wall basis, the back of third wall body is by the support soil body, form preceding storehouse between first wall body and the second wall body, the intussuseption of preceding storehouse is filled with the compactibility material layer, form the back storehouse between second wall body and the third wall body, all fill the water permeability material layer in the back storehouse, between third wall body and the supported soil body, the back of third wall body has been laid and has been strained geotechnical material layer, a plurality of wash ports have been seted up on the third wall body, the drain pipe of a plurality of water discharges in the back storehouse has been buried to the bottom in preceding storehouse.
Preferably, the first wall, the second wall and the third wall are all inclined backward.
Preferably, the total wall body is formed by stacking prefabricated blocks in a frame shape in a staggered manner from bottom to top.
Preferably, the dense material layer is a concrete layer or a rubble concrete layer, and the water permeable material layer is a gravel layer or a crushed stone layer.
Preferably, the reverse filtering geotechnical material layer is adhered to the back surface of the third wall body.
A construction method of a drainage system of a prefabricated upward-inclined retaining wall, comprising any one of the drainage systems of the prefabricated upward-inclined retaining wall, comprising the following steps:
(1) Excavating a foundation trench and constructing a retaining wall foundation;
(2) The precast blocks are stacked in a staggered manner from bottom to top, and the one-time stacking height of the precast blocks is not more than 1.5m;
(3) Burying drain pipes at the bottoms of the first wall body and the second wall body, wherein the height of the drain pipes from the retaining wall foundation is more than or equal to 500mm, and the transverse distance between any two drain pipes is 2-3 m;
(4) Filling a front bin formed between the first wall body and the second wall body with a compact material layer, and filling a rear bin formed between the second wall body and the third wall body with a water permeable material layer;
(5) Sticking the reverse filtering geotechnical material layer on the back of the third wall;
(6) Backfilling the space between the third wall body and the supported soil body by adopting a water permeable material layer;
(7) Repeating the steps (2), (4) to (6) until the construction is completed.
Compared with the prior art, the invention has the following beneficial effects: the invention has simple and reasonable structural design, simple and convenient construction and high safety, and simultaneously avoids forming mud marks on the wall surface of the first wall body, thereby having good visual effect.
The invention will be described in further detail with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic view of the construction of an embodiment of the present invention.
Fig. 2 is a schematic diagram of the construction of an embodiment of the present invention.
In the figure: the soil-retaining wall comprises a 1-retaining wall foundation, a 2-first wall, a 3-second wall, a 4-third wall, a 5-supported soil body, a 6-front bin, a 7-compact material layer, an 8-rear bin, a 9-water-permeable material layer, a 10-reverse filtering geotechnical material layer, 11-drain holes and 12-drain pipes.
Detailed Description
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1-2, a drainage system for prefabricating an inclined retaining wall comprises a total wall body, wherein the total wall body comprises a first wall body 2, a second wall body 3 and a third wall body 4 which are sequentially arranged on a retaining wall foundation 1 from front to back at intervals, the back of the third wall body 4 is a supported soil body 5, a front bin 6 is formed between the first wall body 2 and the second wall body 3, a compact material layer 7 is filled in the front bin 6, a rear bin 8 is formed between the second wall body 3 and the third wall body 4, a water permeable material layer 9 is filled in the rear bin 8, a reverse-filtering geotechnical material layer 10 is laid on the back of the third wall body 4, a plurality of drainage holes 11 are formed in the third wall body 4, and a plurality of drainage pipes 12 for draining water bodies in the rear bin 8 are buried at the bottom of the front bin 6; the water body entering between the third wall body 4 and the supported soil body 5 enters the front bin 6 through the reverse filtering geotechnical material layer 10 and the water drain holes 11, and the water body entering the front bin 6 is discharged through the water drain pipe 12.
In the embodiment of the present invention, the first wall 2, the second wall 3 and the third wall 4 are all disposed obliquely backward.
In the embodiment of the invention, the total wall is formed by staggered stacking of frame-shaped precast blocks from bottom to top.
In the embodiment of the present invention, the dense material layer 7 is a concrete layer or a rubble concrete layer, and the water permeable material layer 9 is a gravel layer or a crushed stone layer.
In the embodiment of the present invention, the anti-filtering geotechnical material layer 10 is adhered to the back surface of the third wall body 4, and the anti-filtering geotechnical material layer 10 may be anti-filtering geotechnical cloth.
In an embodiment of the present invention, a construction method of a drainage system of a prefabricated upward-inclined retaining wall, including any one of the drainage systems of the prefabricated upward-inclined retaining wall described above, includes the following steps:
(1) Excavating a foundation trench and constructing a retaining wall foundation 1;
(2) The precast blocks are stacked in a staggered manner from bottom to top, and the one-time stacking height of the precast blocks is not more than 1.5m;
(3) The bottoms of the first wall body 2 and the second wall body 3 are embedded with water drain pipes 12, the height of the water drain pipes 12 from the retaining wall foundation 1 is more than or equal to 500mm, and the transverse distance between any two water drain pipes 12 is 2-3 m;
(4) Filling a front bin 6 formed between the first wall 2 and the second wall 3 with a compact material layer 7, and filling a rear bin 8 formed between the second wall 3 and the third wall 4 with a water permeable material layer 9;
(5) Adhering the reverse filtering geotechnical material layer 10 to the back of the third wall body 4;
(6) Backfilling the space between the third wall 4 and the supported soil body 5 with a water permeable material layer 9;
(7) Repeating the steps (2), (4) to (6) until the construction is completed.
The present invention is not limited to the above-described preferred embodiments, and any person can obtain various other forms of drainage systems and construction methods for the prefabricated upward-inclined retaining wall under the teaching of the present invention. All equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.
Claims (4)
1. A drainage system of prefabricated upward inclined retaining wall, its characterized in that: the soil-retaining wall comprises a total wall body, wherein the total wall body comprises a first wall body, a second wall body and a third wall body which are sequentially arranged on a soil-retaining wall foundation at intervals from front to back, the back of the third wall body is a supported soil body, a front bin is formed between the first wall body and the second wall body, a compact material layer is filled in the front bin, a rear bin is formed between the second wall body and the third wall body, water-permeable material layers are filled in the rear bin and between the third wall body and the supported soil body, a reverse-filtering geotechnical material layer is laid on the back of the third wall body, a plurality of drain holes are formed in the third wall body, and a plurality of drain pipes for draining water bodies in the rear bin are buried at the bottom of the front bin;
the total wall body is formed by stacking frame-shaped precast blocks in a staggered manner from bottom to top;
and the reverse filtering geotechnical material layer is adhered to the back surface of the third wall body.
2. The drainage system of a prefabricated upward inclined retaining wall according to claim 1, wherein: the first wall body, the second wall body and the third wall body are all obliquely arranged backwards.
3. The drainage system of a prefabricated upward inclined retaining wall according to claim 1, wherein: the compact material layer is a concrete layer or a rubble concrete layer, and the water permeable material layer is a gravel layer or a crushed stone layer.
4. A construction method of a drainage system of a prefabricated upward-inclined retaining wall, characterized by comprising the following steps of:
(1) Excavating a foundation trench and constructing a retaining wall foundation;
(2) The precast blocks are stacked in a staggered manner from bottom to top, and the one-time stacking height of the precast blocks is not more than 1.5m;
(3) Burying drain pipes at the bottoms of the first wall body and the second wall body, wherein the height of the drain pipes from the retaining wall foundation is more than or equal to 500mm, and the transverse distance between any two drain pipes is 2-3 m;
(4) Filling a front bin formed between the first wall body and the second wall body with a compact material layer, and filling a rear bin formed between the second wall body and the third wall body with a water permeable material layer;
(5) Sticking the reverse filtering geotechnical material layer on the back of the third wall;
(6) Backfilling the space between the third wall body and the supported soil body by adopting a water permeable material layer;
(7) Repeating the steps (2), (4) to (6) until the construction is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710877668.8A CN107700523B (en) | 2017-09-26 | 2017-09-26 | Drainage system of prefabricated upward inclined retaining wall and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710877668.8A CN107700523B (en) | 2017-09-26 | 2017-09-26 | Drainage system of prefabricated upward inclined retaining wall and construction method |
Publications (2)
| Publication Number | Publication Date |
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| CN107700523A CN107700523A (en) | 2018-02-16 |
| CN107700523B true CN107700523B (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710877668.8A Active CN107700523B (en) | 2017-09-26 | 2017-09-26 | Drainage system of prefabricated upward inclined retaining wall and construction method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109208634B (en) * | 2018-11-02 | 2020-10-09 | 佛山科学技术学院 | Soil-cement retaining wall |
| CN111456081A (en) * | 2020-03-16 | 2020-07-28 | 中国电建集团华东勘测设计研究院有限公司 | Pile foundation retaining wall structure and construction method |
| CN112832287A (en) * | 2021-02-03 | 2021-05-25 | 江苏熙利建设有限公司 | Inclined retaining wall |
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