CN113026672A - Construction method for construction engineering dam on karst landform - Google Patents
Construction method for construction engineering dam on karst landform Download PDFInfo
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- CN113026672A CN113026672A CN202011616449.2A CN202011616449A CN113026672A CN 113026672 A CN113026672 A CN 113026672A CN 202011616449 A CN202011616449 A CN 202011616449A CN 113026672 A CN113026672 A CN 113026672A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/08—Wall dams
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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
- E02D27/32—Foundations for special purposes
- E02D27/40—Foundations for dams across valleys or for dam constructions
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- General Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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Abstract
The invention discloses a construction method for constructing engineering dams in karst landform, which comprises the following steps: a. selecting gullies and valleys through which water flows intensively, and ensuring that underground rivers and water flow channels do not exist through geophysical prospecting and drilling technologies; b. b, arranging dam foundations at positions with smaller distance on two sides of the gully valley downstream of the gully valley in the step a, wherein the depth and the width of each dam foundation are determined by groundwater dynamics; c. b, drilling and slotting in the dam foundation in the step b, and then piling columns in the slots; d. c, pouring fast-setting concrete into the dam foundation of the piled columns in the step c, and forming a dam foundation after solidification; e. and building the front side and the rear side of the dam foundation by using the finished bricks. By the construction method, the problems of qualitative, positioning and quantitative surveying of the karst depression complex seepage field can be simply, conveniently and effectively solved, and effective plugging of deep and large pipelines in the seepage field is avoided.
Description
Technical Field
The invention relates to the technical field of dam construction, in particular to a construction method for constructing an engineering dam in a karst landform.
Background
The reservoir is built in the karst depression, occupied cultivated land resources are few, the reservoir capacity can be composed of the ground surface (karst depression) reservoir capacity and the underground (karst pipeline and dissolved-air system) reservoir capacity, benefits are larger, and development modes are more reasonable. Because the karst depression suitable for building the reservoir is basically located in the river source area, the self-flowing water supply of the water receiving area can be realized, and the water supply system is a harmonious project between people and nature.
The karst depression reservoir is formed by taking the transformed geological body as a part of a dam engineering body, namely, the karst rock mass with holes and dissolution gaps is transformed into the dam engineering rock mass through a concrete plugging technology and a grouting technology of a special process, so that the engineering function of the geological body is exerted to the maximum extent, and the karst depression reservoir has the characteristics of high safety and low operation and maintenance cost. On the other hand, compared with the traditional reservoir, the karst depression reservoir has a complex seepage field and large surveying and plugging difficulty, but has less dam physical engineering than the traditional reservoir. Therefore, after a new surveying and plugging technology and a new technology are developed, the karst depression reservoir has the advantage of low construction investment, and has a good popularization prospect.
At present, two problems need to be solved by utilizing the karst depression to construct a water supply source land: (1) surveying the karst depression complex seepage field qualitatively (type, structure, water-rock coupling relation), positioning (spatial distribution of the flow field), and quantitatively (scale and form of the flow field); (2) and effectively plugging a deep large pipeline in a seepage field.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a construction method for constructing engineering dams in karst landform, and by the construction method, the problems of qualitative, positioning and quantitative surveying of complex seepage fields in karst depression can be simply, conveniently and effectively solved, and effective plugging of deep and large pipelines in the seepage fields is avoided.
In order to solve the technical problem, the scheme of the invention is as follows:
a construction method for constructing engineering dams on karst landforms comprises the following steps:
a. selecting gullies and valleys through which water flows intensively, and ensuring that underground rivers and water flow channels do not exist through geophysical prospecting and drilling technologies;
b. b, arranging dam foundations at positions with smaller distance on two sides of the gully valley downstream of the gully valley in the step a, wherein the depth and the width of each dam foundation are determined by groundwater dynamics;
c. b, drilling and slotting in the dam foundation in the step b, and then piling columns in the slots;
d. c, pouring fast-setting concrete into the dam foundation of the piled columns in the step c, and forming a dam foundation after solidification;
e. building finished bricks with the length of 60cm, the width of 30cm and the height of 30cm on the front side and the rear side of the dam foundation, forming cavities with the two side walls of the gully valley, then installing reinforcing ribs in the cavities, and pouring special concrete to obtain the dam body wall.
And c, arranging a plurality of grooves, wherein the distance between every two adjacent grooves is 1-1.5 m.
And c, the diameter of the upright post is 0.3-0.5m, and reinforcing ribs are poured inside the upright post.
And b, extending two ends of the dam foundation into the mountain walls on two sides of the ravine valley.
And e, in the cavity building process in the step e, the finished bricks are displaced towards the inner side of the dam foundation, so that the section of the dam wall forms a trapezoidal structure.
And e, in the dam wall building process in the step e, the height of the inner part of the cavity is not higher than that of the single finished brick when special concrete is poured.
And e, bundling and fixing the reinforcing ribs by binding wires to form a net-shaped structure.
And e, arranging an overflow port at the top of the dam body wall, and arranging a water escape valve at the bottom of the dam body wall.
Compared with the prior art, the invention has the beneficial effects that:
by the construction method of the dam for construction engineering of the karst landform, the problems of qualitative, positioning and quantitative surveying of the karst depression complex seepage field can be simply, conveniently and effectively solved, and effective plugging of deep and large pipelines in the seepage field is avoided; the reservoir forming mode of the karst-depression reservoir is that the transformed geologic body is used as a part of a dam engineering body, namely the karst rock mass with caves and solution gaps is transformed into the dam engineering rock mass through a concrete plugging technology and a grouting technology of a special process; on one hand, the engineering function of the geologic body is exerted to the maximum extent, so that the geologic body has the characteristics of high safety and low operation and maintenance cost; on the other hand, compared with the traditional reservoir, the karst depression reservoir has less dam physical engineering. Has the advantages of low construction investment and good popularization prospect.
Detailed Description
The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1: a construction method for constructing engineering dams on karst landforms comprises the following steps:
a. selecting gullies and valleys through which water flows intensively, and ensuring that underground rivers and water flow channels do not exist through geophysical prospecting and drilling technologies; the phenomenon that the dam is difficult to store water due to the underground river and the water flow channel can be avoided.
b. B, arranging dam foundations at positions with smaller distance on two sides of the gully valley downstream of the gully valley in the step a, wherein the depth and the width of each dam foundation are determined by groundwater dynamics; the dam foundation is arranged at the position with smaller distance on the two sides of the gully and the valley, so that building materials used in the building of the dam foundation can be reduced, and the investment of cost can be greatly reduced.
c. B, drilling and slotting in the dam foundation in the step b, and then piling columns in the slots; the pile stand can be convenient for consolidate the dam base, guarantees the firm of dam body wall, guarantees the safety of dam.
d. C, pouring fast-setting concrete into the dam foundation of the piled columns in the step c, and forming a dam foundation after solidification; the dam foundation can facilitate the construction and building of the dam body wall, so that the foundation is firmer.
e. Building finished bricks with the length of 60cm, the width of 30cm and the height of 30cm on the front side and the rear side of the dam foundation, forming cavities with the two side walls of the gully valley, then installing reinforcing ribs in the cavities, and pouring special concrete to obtain the dam body wall. The cavity is formed, pouring of special concrete can be facilitated, construction is facilitated, the construction period is shortened, and the dam wall formed by the reinforcing ribs can be firmer.
And c, arranging a plurality of grooves, wherein the distance between every two adjacent grooves is 1-1.5 m. The arrangement is mainly convenient for reinforcing and building the dam body wall, thereby ensuring the safety of the dam.
And c, the diameter of the upright post is 0.3-0.5m, and reinforcing ribs are poured inside the upright post. The device is also mainly used for ensuring the strength of the stand column, further ensuring the quality of the stand column and ensuring the quality of the dam wall.
And b, extending two ends of the dam foundation into the mountain walls on two sides of the ravine valley. On one hand, the arrangement can facilitate the sealing of the dam and avoid the water seepage phenomenon; and on the other hand, the dam body wall is convenient to form a whole with the two sides of the gully valley after being built, and the two sides of the gully valley are used for intercepting and reinforcing the dam body wall, so that the phenomenon that the dam body wall moves back and forth is avoided.
And e, in the cavity building process in the step e, the finished bricks are displaced towards the inner side of the dam foundation, so that the section of the dam wall forms a trapezoidal structure. The trapezoidal structure is beneficial to intercepting the water contained in the dam; moreover, the trapezoidal structure is convenient for supporting the top of the dam, and the firmness of the dam is ensured.
And e, in the dam wall building process in the step e, the height of the inner part of the cavity is not higher than that of the single finished brick when special concrete is poured. The dam wall slow solidification is convenient for, and the problem of crack collapse caused by expansion with heat and contraction with cold of the dam wall in the later period is reduced, so that firmness is guaranteed.
And e, bundling and fixing the reinforcing ribs by binding wires to form a net-shaped structure. The net structure can make the dam body wall form a whole, and prevent the dam from collapsing.
And e, arranging an overflow port at the top of the dam body wall, and arranging a water escape valve at the bottom of the dam body wall. The overflow port can be convenient for the dam to collect the pressure release when full, reduces the dike breach phenomenon that the dam overfills and leads to the too big production of pressure.
By the construction method of the dam for construction engineering of the karst landform, the problems of qualitative, positioning and quantitative surveying of the karst depression complex seepage field can be simply, conveniently and effectively solved, and effective plugging of deep and large pipelines in the seepage field is avoided; the reservoir forming mode of the karst-depression reservoir is that the transformed geologic body is used as a part of a dam engineering body, namely the karst rock mass with caves and solution gaps is transformed into the dam engineering rock mass through a concrete plugging technology and a grouting technology of a special process; on one hand, the engineering function of the geologic body is exerted to the maximum extent, so that the geologic body has the characteristics of high safety and low operation and maintenance cost; on the other hand, compared with the traditional reservoir, the karst depression reservoir has less dam physical engineering. Has the advantages of low construction investment and good popularization prospect.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (8)
1. A construction method for constructing engineering dams on karst landforms is characterized by comprising the following steps: the method comprises the following steps:
a. selecting gullies and valleys through which water flows intensively, and ensuring that underground rivers and water flow channels do not exist through geophysical prospecting and drilling technologies;
b. b, arranging dam foundations at positions with smaller distance on two sides of the gully valley downstream of the gully valley in the step a, wherein the depth and the width of each dam foundation are determined by groundwater dynamics;
c. b, drilling and slotting in the dam foundation in the step b, and then piling columns in the slots;
d. c, pouring fast-setting concrete into the dam foundation of the piled columns in the step c, and forming a dam foundation after solidification;
e. building finished bricks with the length of 60cm, the width of 30cm and the height of 30cm on the front side and the rear side of the dam foundation, forming cavities with the two side walls of the gully valley, then installing reinforcing ribs in the cavities, and pouring special concrete to obtain the dam body wall.
2. The construction method for constructing the engineering dam on the karst landform as claimed in claim 1, wherein: and c, arranging a plurality of grooves, wherein the distance between every two adjacent grooves is 1-1.5 m.
3. The construction method for constructing the engineering dam on the karst landform as claimed in claim 1, wherein: and c, the diameter of the upright post is 0.3-0.5m, and reinforcing ribs are poured inside the upright post.
4. The construction method for constructing the engineering dam on the karst landform as claimed in claim 1, wherein: and b, extending two ends of the dam foundation into the mountain walls on two sides of the ravine valley.
5. The construction method for constructing the engineering dam on the karst landform as claimed in claim 1, wherein: and e, in the cavity building process in the step e, the finished bricks are displaced towards the inner side of the dam foundation, so that the section of the dam wall forms a trapezoidal structure.
6. The construction method for constructing the engineering dam on the karst landform as claimed in claim 1, wherein: and e, in the dam wall building process in the step e, the height of the inner part of the cavity is not higher than that of the single finished brick when special concrete is poured.
7. The construction method for constructing the engineering dam on the karst landform as claimed in claim 1, wherein: and e, bundling and fixing the reinforcing ribs by binding wires to form a net-shaped structure.
8. The construction method for constructing the engineering dam on the karst landform as claimed in claim 1, wherein: and e, arranging an overflow port at the top of the dam body wall, and arranging a water escape valve at the bottom of the dam body wall.
Priority Applications (1)
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| CN202011616449.2A CN113026672A (en) | 2020-12-31 | 2020-12-31 | Construction method for construction engineering dam on karst landform |
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| CN202011616449.2A CN113026672A (en) | 2020-12-31 | 2020-12-31 | Construction method for construction engineering dam on karst landform |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242164A (en) * | 2001-02-20 | 2002-08-28 | Nippon Steel Metal Prod Co Ltd | Civil engineering structure such as sediment control weir and levee or the like using steel sheet pile and thinning member or the like and construction method therefor |
| JP2011058350A (en) * | 2009-09-11 | 2011-03-24 | Hwang-Eui Lee | Superstructure for increasing crown height of dam |
| CN103306236A (en) * | 2013-06-28 | 2013-09-18 | 梁新 | Method for constructing underground reservoir in ancient gully of ancient underground river channel |
| CN104131575A (en) * | 2014-04-11 | 2014-11-05 | 中国水利水电第十一工程局有限公司 | Plugging and drainage method for dam foundation on karst highly developed stratum |
| CN105780725A (en) * | 2016-05-18 | 2016-07-20 | 周进 | Overwater embankment building method |
| CN108316260A (en) * | 2018-02-28 | 2018-07-24 | 中国能源建设集团广西水电工程局有限公司 | Plugging structure for diversion tunnel based on karst landform and method |
| CN207775831U (en) * | 2017-12-18 | 2018-08-28 | 中国能源建设集团广西水电工程局有限公司 | A kind of asymmetric hyperbolic rolled concrete arch dam structure |
| CN110804994A (en) * | 2019-11-23 | 2020-02-18 | 深圳市东深工程有限公司 | Reservoir dam construction method |
| CN111877270A (en) * | 2020-08-18 | 2020-11-03 | 昆明理工大学 | Earth and rockfill dam impervious barrier structure |
-
2020
- 2020-12-31 CN CN202011616449.2A patent/CN113026672A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242164A (en) * | 2001-02-20 | 2002-08-28 | Nippon Steel Metal Prod Co Ltd | Civil engineering structure such as sediment control weir and levee or the like using steel sheet pile and thinning member or the like and construction method therefor |
| JP2011058350A (en) * | 2009-09-11 | 2011-03-24 | Hwang-Eui Lee | Superstructure for increasing crown height of dam |
| CN103306236A (en) * | 2013-06-28 | 2013-09-18 | 梁新 | Method for constructing underground reservoir in ancient gully of ancient underground river channel |
| CN104131575A (en) * | 2014-04-11 | 2014-11-05 | 中国水利水电第十一工程局有限公司 | Plugging and drainage method for dam foundation on karst highly developed stratum |
| CN105780725A (en) * | 2016-05-18 | 2016-07-20 | 周进 | Overwater embankment building method |
| CN207775831U (en) * | 2017-12-18 | 2018-08-28 | 中国能源建设集团广西水电工程局有限公司 | A kind of asymmetric hyperbolic rolled concrete arch dam structure |
| CN108316260A (en) * | 2018-02-28 | 2018-07-24 | 中国能源建设集团广西水电工程局有限公司 | Plugging structure for diversion tunnel based on karst landform and method |
| CN110804994A (en) * | 2019-11-23 | 2020-02-18 | 深圳市东深工程有限公司 | Reservoir dam construction method |
| CN111877270A (en) * | 2020-08-18 | 2020-11-03 | 昆明理工大学 | Earth and rockfill dam impervious barrier structure |
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Application publication date: 20210625 |