CN112982296B - Construction method of pile box type retaining wall for slope protection - Google Patents
Construction method of pile box type retaining wall for slope protection Download PDFInfo
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- CN112982296B CN112982296B CN202110330976.5A CN202110330976A CN112982296B CN 112982296 B CN112982296 B CN 112982296B CN 202110330976 A CN202110330976 A CN 202110330976A CN 112982296 B CN112982296 B CN 112982296B
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- reinforced concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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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
Abstract
The invention discloses a construction method of a pile-box type retaining wall for side slope protection, which comprises the steps of (1) constructing a reinforced concrete cast-in-place pile (2) in a side slope soil body, excavating pile front soil (3) on the side, facing the river, of the reinforced concrete cast-in-place pile, building a reinforced concrete bottom plate connected with the reinforced concrete cast-in-place pile along the bottom surface of the river, then laying a dirt intercepting pipe longitudinally extending along the river on the reinforced concrete bottom plate, building a reinforced concrete vertical retaining wall connected with the reinforced concrete bottom plate on the side, facing the river, of the reinforced concrete bottom plate, the reinforced concrete vertical retaining wall and the reinforced concrete cast-in-place pile to form a box cavity (4), building reinforced concrete longitudinal beams and reinforced concrete cross beams (5) in the box cavity, filling backfill soil into the box cavity, laying a pedestrian path, and installing a protective handrail (6) and building a planting groove on the top of the side, facing the reinforced concrete vertical retaining wall. The invention adopts the L-shaped reinforced concrete box-type retaining wall and the reinforced concrete cast-in-place pile to be connected into a pile box-type integral structure at the side close to the river, thereby enhancing the stability.
Description
Technical Field
The invention relates to the technical field of river slope protection and sewage interception pipeline laying, in particular to a construction method of a pile box type retaining wall for slope protection.
Background
At present, the urban river comprehensive treatment project is required to have double functions of flood control and sewage interception. For a common river channel, a mode of building a retaining wall on the side close to the river and laying a sewage intercepting pipeline behind the wall is adopted; for the high slope river reach, because can not adopt the chute excavation, its method is mostly "adopt steel sheet pile etc. to carry out interim support, upright excavation again, then lay the mode of intercepting dirty pipeline". In the latter case, the safety of the steel sheet pile support is reduced as the height of the slope behind the dike is increased, so that the higher the side slope of the river channel is, the lower the safety flood control effect of the protection body is. Particularly, when working conditions that a slope outside a river bank is high, a peripheral construction surface is narrow, and a construction road is difficult to arrange are met, the method of 'embedding and intercepting pipelines after temporary support of steel sheet piles' is too much disturbed by an original mountain, and engineering safety is seriously affected.
Disclosure of Invention
In order to solve the above problems, the present invention provides a construction method of a pile box type retaining wall for protecting a side slope, which specifically adopts the following technical scheme:
the invention relates to a construction method of a pile box type retaining wall for slope protection, which comprises the following construction steps:
firstly, constructing reinforced concrete cast-in-place piles in a side slope soil body to enable the piles to be longitudinally arranged in a row along a river course;
secondly, excavating pile front soil on the side, close to the river, of the reinforced concrete cast-in-place pile until the pile front soil is flush with the bottom surface of the river;
building a reinforced concrete bottom plate connected with the reinforced concrete cast-in-place pile along the bottom surface of the river channel, laying a sewage intercepting pipe longitudinally extending along the river channel on the reinforced concrete bottom plate, building a reinforced concrete vertical retaining wall connected with the reinforced concrete vertical retaining wall on the side of the reinforced concrete bottom plate close to the river, and enclosing the reinforced concrete bottom plate, the reinforced concrete vertical retaining wall and the reinforced concrete cast-in-place pile to form a box cavity;
fourthly, building a reinforced concrete longitudinal beam connected with the reinforced concrete cast-in-place pile in the box-shaped cavity, and then building a reinforced concrete cross beam between the reinforced concrete longitudinal beam and the reinforced concrete vertical retaining wall;
fifthly, filling backfill soil into the box-shaped cavity and compacting, then paving a pedestrian path on the top of the box-shaped cavity, and mounting a protective railing on the top of the reinforced concrete cast-in-place pile and the reinforced concrete vertical retaining wall;
and sixthly, building a planting groove at the top of the river-facing side of the reinforced concrete vertical retaining wall, and backfilling planting soil in the planting groove for greening.
And the third step also comprises the step of installing a PVC drain pipe with an outlet positioned at one side of the river channel on the reinforced concrete vertical retaining wall.
The reinforced concrete longitudinal beams are arranged from bottom to top along the reinforced concrete cast-in-place pile, and a plurality of reinforced concrete cross beams are arranged on each reinforced concrete longitudinal beam at intervals.
The minimum compaction density of the backfill on two sides of the sewage interception pipe is not less than 90%, and the compaction density of the backfill in the range of 50cm above the top of the sewage interception pipe is not more than 85%.
The construction method of the pile-box type retaining wall for slope protection, provided by the invention, has the advantages that the slope stability and the construction feasibility are considered for the complicated working conditions that the hillside outside the river levee is high, the peripheral construction surface is narrow, and the construction road is difficult to arrange, the reinforced concrete cast-in-place pile is used as a temporary support and is combined with a permanent retaining wall for use, the L-shaped reinforced concrete box type retaining wall and the reinforced concrete cast-in-place pile are connected to form a pile-box type integral structure on the side close to the river, and the stability of the retaining wall is enhanced. Because the pile is filled with the reinforced concrete, the pile is not disturbed by the soil body of the high slope and the hillside, the stress condition is better, and the safety can be ensured.
Drawings
Fig. 1 is a schematic structural view of the pile box type retaining wall of the present invention.
Fig. 2 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and the detailed embodiments are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 and 2, the construction method of the pile box type retaining wall for slope protection of the present invention includes the following construction steps:
firstly, constructing reinforced concrete cast-in-place piles 1 in a side slope soil body, enabling the reinforced concrete cast-in-place piles 1 to be arranged in a row along the longitudinal direction of a river course to serve as temporary support measures and permanently reserve, wherein the original state soil of a high side slope is behind the reinforced concrete cast-in-place piles 1;
secondly, excavating pile front soil on the side, close to the river, of the reinforced concrete cast-in-place pile 1 until the pile front soil is flush with the bottom surface of the river;
thirdly, building a reinforced concrete bottom plate 2 connected with a reinforced concrete cast-in-place pile 1 along the bottom surface of the river channel, laying a sewage interception pipe 3 longitudinally extending along the river channel on the reinforced concrete bottom plate, building a reinforced concrete vertical retaining wall 4 connected with the reinforced concrete bottom plate 2 on the side close to the river, and installing a PVC drain pipe 5 with an outlet positioned on one side of the river channel on the reinforced concrete vertical retaining wall 4 for draining water behind the wall, wherein the reinforced concrete bottom plate 2 and the reinforced concrete vertical retaining wall 4 form an L-shaped reinforced concrete box-type retaining wall, and the reinforced concrete bottom plate 2, the reinforced concrete vertical retaining wall 4 and the reinforced concrete cast-in-place pile 1 are encircled to form a box-shaped cavity;
fourthly, building a reinforced concrete longitudinal beam 6 connected with the reinforced concrete cast-in-place pile 1 in the box cavity, and then building a reinforced concrete cross beam 7 between the reinforced concrete longitudinal beam 6 and the reinforced concrete vertical retaining wall 4; a plurality of reinforced concrete longitudinal beams 6 (two in figure 1) are distributed along the reinforced concrete cast-in-place pile 1 from bottom to top, and a plurality of reinforced concrete cross beams 7 are distributed on each reinforced concrete longitudinal beam 1 at intervals so as to further strengthen the stability of the whole structure of the pile-box type retaining wall;
fifthly, filling and compacting backfill 8 into the box-shaped cavity, then paving a pedestrian path 9 on the top of the box-shaped cavity, and installing a protective railing 10 on the top of the reinforced concrete cast-in-place pile 1 and the top of the reinforced concrete vertical retaining wall 4; the minimum compacted density of the backfill 8 at the two sides of the sewage interception pipe 3 is not less than 90 percent, and the compacted density of the backfill 8 in the range of 50cm above the top of the sewage interception pipe 3 is not more than 85 percent;
and sixthly, building a planting groove 11 at the top of the river-facing side of the reinforced concrete vertical retaining wall 4, and backfilling planting soil in the planting groove 11 for greening.
The pile is filled with the reinforced concrete, and the pile is filled with the reinforced concrete, so that the pile is undisturbed, the soil body of a high slope and a hillside is not disturbed, the stress condition is better, and the safety can be ensured; the reinforced concrete cast-in-place pile is used as a temporary support and is combined with a permanent retaining wall for use, the L-shaped reinforced concrete box-type retaining wall and the reinforced concrete cast-in-place pile are connected into a pile box type integral structure on the side close to the river, and the integral stability of the retaining wall is enhanced. The invention is particularly suitable for working conditions that the construction surface around the high slope river channel is narrow, the construction road is difficult to arrange and the like, and can meet the protection requirement of the high slope around the river channel and simultaneously meet the requirements of temporary support, permanent retaining walls, sewage intercepting pipeline channels, pedestrian footpaths, protection of the side slope near the river and the like.
It should be noted that in the description of the present invention, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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 thus, should not be construed as limiting the present invention.
Claims (1)
1. A construction method of a pile box type retaining wall for slope protection is characterized in that: the method comprises the following construction steps:
firstly, constructing reinforced concrete cast-in-place piles in a side slope soil body to enable the piles to be longitudinally arranged in a row along a river course;
secondly, excavating pile front soil on the side, close to the river, of the reinforced concrete cast-in-place pile until the pile front soil is flush with the bottom surface of the river;
thirdly, building a reinforced concrete bottom plate connected with a reinforced concrete cast-in-place pile along the bottom surface of the river channel, then laying a sewage intercepting pipe longitudinally extending along the river channel on the reinforced concrete bottom plate, and then building a reinforced concrete vertical retaining wall connected with the reinforced concrete bottom plate on the side close to the river, wherein the reinforced concrete bottom plate, the reinforced concrete vertical retaining wall and the reinforced concrete cast-in-place pile are encircled to form a box cavity;
fourthly, building a reinforced concrete longitudinal beam connected with the reinforced concrete cast-in-place pile in the box-shaped cavity, and then building a reinforced concrete cross beam between the reinforced concrete longitudinal beam and the reinforced concrete vertical retaining wall;
fifthly, filling backfill soil into the box-shaped cavity and compacting, then paving a pedestrian path on the top of the box-shaped cavity, and mounting a protective railing on the top of the reinforced concrete cast-in-place pile and the reinforced concrete vertical retaining wall;
constructing a planting groove at the top of one side of the reinforced concrete vertical retaining wall, which faces the river, and backfilling planting soil in the planting groove for greening;
the third step also comprises the step of installing a PVC drain pipe with an outlet positioned at one side of the river channel on the reinforced concrete vertical retaining wall; the reinforced concrete longitudinal beams are arranged from bottom to top along the reinforced concrete cast-in-place pile, and a plurality of reinforced concrete cross beams are arranged on each reinforced concrete longitudinal beam at intervals; the minimum compaction density of the backfill on two sides of the sewage interception pipe is not less than 90%, and the compaction density of the backfill in the range of 50cm above the top of the sewage interception pipe is not more than 85%.
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| CN202110330976.5A CN112982296B (en) | 2021-03-29 | 2021-03-29 | Construction method of pile box type retaining wall for slope protection |
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| CN202110330976.5A CN112982296B (en) | 2021-03-29 | 2021-03-29 | Construction method of pile box type retaining wall for slope protection |
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| CN112982296A CN112982296A (en) | 2021-06-18 |
| CN112982296B true CN112982296B (en) | 2023-02-17 |
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| CN115450169B (en) * | 2022-09-15 | 2024-01-23 | 中国电建集团成都勘测设计研究院有限公司 | River course revetment considering sewage interception pipeline layout and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002212966A (en) * | 2001-01-17 | 2002-07-31 | Shinkoo Corporation:Kk | Construction method for earth retaining wall with landscape |
| CN205088626U (en) * | 2015-11-03 | 2016-03-16 | 皖西学院 | Ecological landscape bank protection |
| CN109162295A (en) * | 2018-11-02 | 2019-01-08 | 浙江省工程物探勘察院 | A kind of cast-in-situ steel reinforced concrete gravity retaining wall structure and its construction method |
| CN208762959U (en) * | 2018-07-19 | 2019-04-19 | 上海勘测设计研究院有限公司 | A kind of half spacious empty van formula Ecological Retaining Wall |
| CN211447015U (en) * | 2019-12-31 | 2020-09-08 | 四川省公路规划勘察设计研究院有限公司 | H-shaped anti-slide pile plate wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6207949B2 (en) * | 2013-09-25 | 2017-10-04 | 鹿島建設株式会社 | Retaining wall structure |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002212966A (en) * | 2001-01-17 | 2002-07-31 | Shinkoo Corporation:Kk | Construction method for earth retaining wall with landscape |
| CN205088626U (en) * | 2015-11-03 | 2016-03-16 | 皖西学院 | Ecological landscape bank protection |
| CN208762959U (en) * | 2018-07-19 | 2019-04-19 | 上海勘测设计研究院有限公司 | A kind of half spacious empty van formula Ecological Retaining Wall |
| CN109162295A (en) * | 2018-11-02 | 2019-01-08 | 浙江省工程物探勘察院 | A kind of cast-in-situ steel reinforced concrete gravity retaining wall structure and its construction method |
| CN211447015U (en) * | 2019-12-31 | 2020-09-08 | 四川省公路规划勘察设计研究院有限公司 | H-shaped anti-slide pile plate wall |
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