CN113006076A - Flow isolation building structure for dry land construction and construction method - Google Patents
Flow isolation building structure for dry land construction and construction method Download PDFInfo
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- CN113006076A CN113006076A CN202110238231.6A CN202110238231A CN113006076A CN 113006076 A CN113006076 A CN 113006076A CN 202110238231 A CN202110238231 A CN 202110238231A CN 113006076 A CN113006076 A CN 113006076A
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- retaining wall
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- concrete retaining
- filling body
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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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
- E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
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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
- E02D29/06—Constructions, or methods of constructing, in water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
本发明提供一种干地施工的隔流建筑物结构及施工方法，该隔流建筑物结构下部为土石填筑体，可水下抛填施工，上部混凝土结构在土石填筑体上施工，可干地施工；为将外侧水流隔离，上部采取混凝土挡墙+混凝土板结构型式，水下部分采取地下连续墙结构型式；为了保证外侧水和内侧水在水位最低情况下仍能互通，混凝土板下部地下连续墙底高程上抬，运行期挖除其下方土石，形成过水通道，保证内外侧水的互通。
The invention provides a structure and a construction method for a flow-blocking building constructed on dry ground. The lower part of the flow-blocking building structure is an earth-rock filling body, which can be dumped and filled under water, and the upper concrete structure is constructed on the earth-rock filling body, which can be Construction on dry ground; in order to isolate the external water flow, the upper part adopts the concrete retaining wall + concrete slab structure type, and the underwater part adopts the underground diaphragm wall structure type; The bottom elevation of the underground diaphragm wall is raised, and the soil and stone below it are excavated during operation to form a water passage to ensure the exchange of water between the inside and outside.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering, and particularly relates to a flow isolation building structure for dry land construction and a construction method.
Background
In the engineering fields of water conservancy and hydropower, shipping, river landscape treatment and the like, a hydraulic structure with special requirements is often required to be newly built, and the requirements of the structure are that on one hand, water flows on two sides of the structure are separated, so that the water flow on one side with the requirements is not influenced by the water flow of a main riverbed, and the stability of the flow state is kept; on the other hand, the water levels on the two sides need to be kept balanced at any time, so that the requirements on the aspects of flow state, landscape, shipping and the like are met. The common method for building such water-proof buildings in riverways, especially in great rivers running water all the year round, is to build cofferdams first, then pump out foundation pit water, and perform construction of diversion buildings under dry conditions.
The scheme has the following problems in the design and construction processes:
(1) due to the construction of the cofferdam, the flood section of the riverbed is seriously narrowed, and the natural flow state of the riverway is changed; the problems of increased flow speed, steep slope drop and the like can seriously damage the safety of bank slopes on both sides and water-bound buildings;
(2) in rivers with large flow, the cofferdam is large in scale, the construction amount of earth and rock filling and cofferdam seepage-proofing systems is large, and the investment is often measured by tens of millions or even hundreds of millions;
(3) the construction period is long, and 3-6 months are usually needed for the construction of the cofferdam earth and stone fill and the anti-seepage system; after the cofferdam is finished, the construction of the flow-isolating building can be carried out;
(4) for a deep and thick covering layer type riverbed, if a foundation pit excavation mode is adopted, the problems of great safety and technical problems such as foundation pit enclosure, side slope stability and the like are involved, and the design and construction difficulties are large.
Disclosure of Invention
The first objective of the present invention is to provide a construction method of a flow-isolated building structure for dry land construction, which can isolate water flows on two sides, and at the same time, a water passage is arranged at the bottom for water flow communication.
For this reason, the above object of the present invention is achieved by the following technical solutions:
a construction method of a flow-isolating building structure constructed in dry land is characterized in that: the construction method of the flow-isolating building structure constructed in the dry land comprises the following steps:
s1, carrying out earth and stone filling construction;
s2, pile foundation construction is carried out, and the pile foundation can adopt interval construction; reserving a certain length of a steel bar at the top of a steel reinforcement cage of the pile foundation, and binding the steel bar with a concrete retaining wall foundation steel bar at the later stage;
s3, carrying out underground continuous wall construction, wherein the underground continuous wall at the position of the concrete retaining wall is constructed firstly, then the concrete slab underground continuous wall is constructed, and the lower part of the concrete retaining wall underground continuous wall is constructed into the foundation at the lower part of the earth-rock filling body;
s4, after the construction of the pile foundation, the concrete retaining wall underground continuous wall and the concrete slab underground continuous wall is completed, the concrete retaining wall construction at the upper part of the earth-rock filling body is carried out; constructing a concrete retaining wall, and reserving a groove section on the concrete retaining wall during construction;
s5, constructing concrete plates between two adjacent concrete retaining walls one by one;
and S6, removing the earth and stone filling body needing to be removed after the concrete retaining wall and the concrete slab are finished, wherein the part of the removal work is used as water work, a sand blocking bank is reserved in the earth and stone filling body, and a flow passage is formed at the lower part of the concrete slab underground continuous wall.
While adopting the technical scheme, the invention can also adopt or combine the following technical scheme:
as a preferred technical scheme of the invention: in step S4: when the concrete retaining wall is carried out, the reserved section of the top reinforcing steel bar of the pile foundation reinforcement cage is bent by 90 degrees and is bound with a foundation reinforcing mesh of the concrete retaining wall.
As a preferred technical scheme of the invention: and after the step S6 is finished, constructing the external water side protective material for the sand blocking sill.
It is a further object of the present invention to provide a flow-insulated building structure for dry construction that addresses the deficiencies in the prior art.
For this reason, the above object of the present invention is achieved by the following technical solutions:
a flow-isolating building structure for dry land construction is characterized in that: the flow separation building structure constructed in the dry land comprises a soil-rock filling body, wherein the soil-rock filling body comprises a sand blocking ridge close to the water side and a soil-rock filling body which needs to be detached, a row of pile foundations are arranged in the soil-rock filling body, the pile foundations are mutually spaced, the soil-rock filling body is provided with a concrete retaining wall underground continuous wall and a concrete slab underground continuous wall on the downstream side of the pile foundations, the concrete retaining wall underground continuous wall and the concrete slab underground continuous wall are continuous and integral, the lower part of the concrete retaining wall underground continuous wall is inserted into the foundation at the lower part of the soil-rock filling body, the lower part of the concrete slab underground continuous wall is not inserted into the foundation at the lower part of the soil-rock filling body, the upper part of the soil-rock filling body is provided with a concrete retaining wall, the bottom of the concrete retaining wall is abutted against the top of the pile foundations and the concrete retaining wall underground continuous wall, and groove sections are arranged at the two sides, the reserved groove section is used for embedding a concrete slab, and an overflow channel is formed below the underground continuous wall of the concrete slab after the earth and stone filling body needing to be removed is removed.
While adopting the technical scheme, the invention can also adopt or combine the following technical scheme:
as a preferred technical scheme of the invention: and binding the steel bars at the top of the steel reinforcement cage of the pile foundation with the steel bars of the concrete retaining wall foundation.
As a preferred technical scheme of the invention: and the water inlet side of the sand blocking ridge is provided with an outer water side protective material.
The invention provides a flow isolation building structure for dry land construction and a construction method, wherein the flow isolation building structure comprises a soil and stone filling body and an upper concrete structure; the earth and stone filling body adopts underwater direct throwing filling construction, the top elevation can be determined according to hydrological data of a required construction period, and the aim is to ensure that an upper concrete structure and foundation construction are not flooded by water in the required construction period and can be constructed dryly; filling soil and stones as a part of the structure and simultaneously as an engineering construction platform, wherein the width of the top of the soil and stones is determined according to construction and safety requirements; the upper concrete structure adopts a concrete retaining wall and concrete slabs which are arranged at intervals, the concrete retaining wall can adopt a gravity type structure, and the two concrete retaining walls adopt the concrete slabs and other structural types; the two sides of the concrete retaining wall are reserved with groove sections which are embedded as concrete slabs, and the concrete slabs can be cast in situ or precast concrete; in order to ensure the safety of the upper concrete retaining wall structure, the foundation adopts a pile foundation structure type, and the pile foundation type, depth and the like are determined according to specific geological conditions and design; the underground continuous walls are arranged in a 'tooth-groove shape', the underground continuous walls at the lower parts of the concrete retaining walls are simultaneously used as a part of foundation treatment, and the bottom elevations of the underground continuous walls are determined according to the structural requirements; the elevation of the bottom of the underground continuous wall at the lower part of the concrete slab is raised, and the elevation can be slightly higher than the water level in the most withered season of the river bed (or the designed required water level); partially dismantling the earth and stone filling body in the operation period; wherein the earth and stone filling body under the concrete slab can be disassembled below the elevation of the underground continuous wall to form a water passing channel, so that the water flows at two sides can be conveniently communicated; when the soil-rock filling body is dismantled, a sand blocking bank is reserved in the soil-rock filling body on the outer waterside to play a role in blocking sediment and protect the hole from sediment deposition; the outside water side of the earth-rock filling body can adopt protective materials such as rock blocks, lead wire nets, concrete tetrahedrons and the like according to indexes such as water flow velocity and the like to avoid scouring damage. The top steel bar of the pile foundation extends into the concrete retaining wall foundation and is connected with the concrete retaining wall foundation steel bar mesh, and the top steel bar of the pile foundation and the concrete retaining wall foundation form an integral structure.
Drawings
FIG. 1 is a floor plan of a dry-construction flow-isolated building structure provided by the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1 during construction;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1 during operation;
FIG. 4 is a sectional view taken along line B-B of FIG. 1 during construction;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 1 during operation;
FIG. 6 is a cross-sectional view taken along line I-I of FIG. 1 during operation;
FIG. 7 is a cross-sectional view taken along line II-II of FIG. 1 during operation;
in the figure: 1-a soil and stone filling body, 2-a concrete retaining wall, 3-a concrete slab, 4-a pile foundation, 5-a concrete retaining wall underground continuous wall, 6-a concrete slab underground continuous wall, 7-a flow passage, 8-a sand blocking bank, 9-an outer water side protective material, 10-a soil and stone filling body needing to be removed, and 11-a reserved groove section.
Detailed Description
The invention is described in further detail with reference to the figures and specific embodiments.
The flow-isolating building structure constructed in dry land provided by the invention is implemented by the following modes:
(1) constructing the earth-rock filling body 1, wherein the elevation meets the construction condition of dry land, and the width of the top is determined according to the construction method and the safety requirement;
(2) constructing a pile foundation 4, wherein the pile foundation can adopt interval construction; reserving a certain length of steel bars at the top of a steel bar cage of the pile foundation 4, and binding the steel bars with the foundation steel bars of the concrete retaining wall 2 at the later stage;
(3) carrying out underground continuous wall construction, namely constructing the concrete retaining wall underground continuous wall 5 at the position of the concrete retaining wall 2, and then constructing the concrete slab underground continuous wall 6;
(4) after the construction of the pile foundation 4, the concrete retaining wall underground continuous wall 5 and the concrete slab underground continuous wall 6 is completed, the concrete retaining wall 2 on the upper part of the earth-rock filling body 1 is constructed, and when the concrete retaining wall 2 is carried out, the reinforcement bar reserved section at the top of the reinforcement cage of the pile foundation 4 is bent by 90 degrees and is bound with the foundation reinforcement mesh of the concrete retaining wall 2; constructing the concrete retaining wall 2, and reserving a groove section 11 during construction;
(5) constructing concrete plates 3 between the two concrete retaining walls 2 one by one;
(6) after the concrete retaining wall 2 and the concrete slab 3 are finished, removing a stone filling body 10 to be removed, wherein the part of the removal work is used as water work, a sand blocking bank 8 is reserved, and a flow passage 7 is formed at the lower part of the concrete slab underground continuous wall 6 at the lower part of the concrete slab;
(7) and (5) constructing the protective material on the outer water side of the sand blocking ridge 8 by 9.
The above-described embodiments are intended to illustrate the present invention, but not to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention and the scope of the claims fall within the scope of the present invention.
Claims (6)
1. A construction method of a flow-isolating building structure constructed in dry land is characterized in that: the construction method of the flow-isolating building structure constructed in the dry land comprises the following steps:
s1, constructing the earth and stone filling body (1);
s2, constructing a pile foundation (4), wherein the pile foundation can be constructed at intervals; reserving a certain length of steel bars at the top of a steel bar cage of the pile foundation (4), and binding the steel bars with foundation steel bars of the concrete retaining wall (2) at the later stage;
s3, carrying out underground continuous wall construction, wherein the underground continuous wall (5) at the position of the concrete retaining wall (2) is constructed firstly, then the concrete slab underground continuous wall (6) is constructed, and the lower part of the concrete retaining wall underground continuous wall (5) is constructed into the foundation at the lower part of the earth-rock filling body (1);
s4, after the construction of the pile foundation (4), the concrete retaining wall underground continuous wall (5) and the concrete slab underground continuous wall (6) is completed, the concrete retaining wall (2) on the upper part of the earth-rock filling body (1) is constructed; constructing the concrete retaining wall (2), and reserving a groove section (11) on the concrete retaining wall (2) during construction;
s5, constructing concrete plates (3) between two adjacent concrete retaining walls (2) one by one;
s6, after the concrete retaining wall (2) and the concrete slab (3) are completed, dismantling the earth and stone filling body (10) needing to be dismantled is carried out, the dismantling work of the part is used as water work, a sand blocking bank (8) is reserved in the earth and stone filling body (1), and a flow passage (7) is formed at the lower part of the concrete slab underground continuous wall (6).
2. The method of constructing a flow-isolated building structure constructed in dry land according to claim 1, wherein: in step S4: when the concrete retaining wall (2) is carried out, the top steel bar reserved section of the steel bar cage of the pile foundation (4) is bent by 90 degrees and is bound with the foundation steel bar mesh of the concrete retaining wall (2).
3. The method of constructing a flow-isolated building structure constructed in dry land according to claim 1, wherein: after the step S6 is completed, the construction of the outer water side protective material (9) can be carried out on the sand blocking sill (8).
4. A flow-isolating building structure for dry land construction is characterized in that: the flow separation building structure constructed in dry land comprises a soil-rock filling body (1), wherein the soil-rock filling body comprises a sand blocking bank (8) close to the water side and a soil-rock filling body (10) needing to be dismantled, a row of pile foundations (4) are arranged in the soil-rock filling body (1), the pile foundations (4) are spaced from each other, the soil-rock filling body (1) is provided with a concrete retaining wall underground continuous wall (5) and a concrete slab underground continuous wall (6) on the downstream side of the pile foundations (4), the concrete retaining wall underground continuous wall (5) and the concrete slab underground continuous wall (6) are continuous and integral, the lower part of the concrete retaining wall underground continuous wall (5) is inserted into the foundation under the soil-rock filling body (1), the lower part of the concrete slab underground continuous wall (6) is not inserted into the foundation under the soil-rock filling body (1), and the concrete retaining wall (2) is arranged on the upper part of the soil-rock filling body (1), concrete retaining wall (2) bottom is supporting the top of pile foundation (4) and concrete retaining wall underground continuous wall (5), the both sides of concrete retaining wall (2) set up reserve groove section (11), reserve groove section (11) are used for imbedding concrete slab (3), need to demolish behind stone filling body (10) demolish and form overflow channel (7) below concrete slab underground continuous wall (6).
5. The dry-construction, flow-insulated building structure according to claim 4, characterized in that: and the steel bars at the top of the steel reinforcement cage of the pile foundation (4) are bound with the foundation steel bars of the concrete retaining wall (2).
6. The dry-construction, flow-insulated building structure according to claim 4, characterized in that: and an outer water side protective material (9) is arranged on the water inlet side of the sand blocking ridge (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110238231.6A CN113006076B (en) | 2021-03-04 | 2021-03-04 | Flow isolation building structure for dry land construction and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110238231.6A CN113006076B (en) | 2021-03-04 | 2021-03-04 | Flow isolation building structure for dry land construction and construction method |
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| CN113006076A true CN113006076A (en) | 2021-06-22 |
| CN113006076B CN113006076B (en) | 2022-06-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115928788A (en) * | 2022-12-01 | 2023-04-07 | 中交第一航务工程局有限公司 | Construction method of water permeable immersed tube foundation structure |
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| KR20100061962A (en) * | 2008-12-01 | 2010-06-10 | 남정훈 | Precast wall type hybrid power generation structure for increasing flow |
| CN203429606U (en) * | 2013-07-23 | 2014-02-12 | 中国水电顾问集团华东勘测设计研究院 | Sediment retaining bank reconstructed from temporary cofferdam |
| CN106381848A (en) * | 2016-11-01 | 2017-02-08 | 中国电建集团贵阳勘测设计研究院有限公司 | Reinforced concrete pile-slab dam and using method thereof |
| CN108677880A (en) * | 2018-07-27 | 2018-10-19 | 中国电建集团成都勘测设计研究院有限公司 | For the stake woods dam under complex geological condition |
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2021
- 2021-03-04 CN CN202110238231.6A patent/CN113006076B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100061962A (en) * | 2008-12-01 | 2010-06-10 | 남정훈 | Precast wall type hybrid power generation structure for increasing flow |
| CN203429606U (en) * | 2013-07-23 | 2014-02-12 | 中国水电顾问集团华东勘测设计研究院 | Sediment retaining bank reconstructed from temporary cofferdam |
| CN106381848A (en) * | 2016-11-01 | 2017-02-08 | 中国电建集团贵阳勘测设计研究院有限公司 | Reinforced concrete pile-slab dam and using method thereof |
| CN108677880A (en) * | 2018-07-27 | 2018-10-19 | 中国电建集团成都勘测设计研究院有限公司 | For the stake woods dam under complex geological condition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115928788A (en) * | 2022-12-01 | 2023-04-07 | 中交第一航务工程局有限公司 | Construction method of water permeable immersed tube foundation structure |
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