CN107338764B - karst funnel reservoir and double-shell plugging structure and construction method thereof - Google Patents
karst funnel reservoir and double-shell plugging structure and construction method thereof Download PDFInfo
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- CN107338764B CN107338764B CN201710607417.8A CN201710607417A CN107338764B CN 107338764 B CN107338764 B CN 107338764B CN 201710607417 A CN201710607417 A CN 201710607417A CN 107338764 B CN107338764 B CN 107338764B
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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
- E02B3/16—Sealings or joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/02—Containers for fluids or gases; Supports therefor
- E04H7/18—Containers for fluids or gases; Supports therefor mainly of concrete, e.g. reinforced concrete, or other stone-like material
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Abstract
The invention discloses a double-shell plugging structure which comprises a base, wherein the base is arranged along the inner wall of a water leakage channel of a karst funnel in a surrounding manner, and a double-shell structure used for plugging the water leakage channel of the karst funnel is arranged in the base; the double-layer shell structure comprises an upper-layer plugging shell and a lower-layer plugging shell positioned below the upper-layer plugging shell. The invention also discloses a karst funnel reservoir and a construction method of the double-shell plugging structure. According to the double-shell plugging structure, the double-shell structure is arranged in the base, so that the load of self weight and the like of stored water and silt can be converted into pressure to be transmitted to the surrounding rock mass, the tensile force borne by the plugging structure is effectively reduced, the engineering quantity is reduced, and the economical efficiency is good.
Description
Technical Field
the invention belongs to the technical field of hydraulic engineering, and particularly relates to a karst funnel reservoir, a double-shell plugging structure thereof and a construction method.
Background
The karst landform distribution of China is wide, the area is large, the karst landform distribution is mainly distributed in the exposed area of carbonate rock, and the area is about 91-130 ten thousand square kilometers. The areas occupied by Guangxi, Guizhou and the eastern part of Yunnan are the largest, and the method is one of the largest karst landforms in the world. The main karst landform areas in China are also areas with abundant atmospheric precipitation, but due to poor water storage conditions on the earth surface, most of precipitation intensively enters an underground karst system through a karst funnel and the like, so that the surface water resources of the karst landform areas are not abundant, and many areas even have prominent seasonal water shortage problems, thereby seriously affecting the local economic and social development.
with the social development and the technical economic progress of China, reservoirs need to be built in karst regions to solve the problem of seasonal water shortage locally. The large karst funnel has good water collection conditions on the terrain, the water quality is good, and if the natural drainage channel of the karst funnel is scientifically plugged, a karst funnel reservoir can be formed. As the karst funnels are a component of the karst system, complete plugging may significantly alter the runoff, drainage process of the karst water, thereby causing new and more complex problems.
Disclosure of Invention
In view of the above, the invention aims to provide a karst funnel reservoir, a double-shell plugging structure thereof and a construction method, which can meet the requirement of plugging a centralized water leakage channel of a karst funnel.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention firstly provides a double-shell plugging structure which comprises a base, wherein the base is arranged along the inner wall of a water leakage channel of a karst funnel in a surrounding way, and a double-shell structure used for plugging the water leakage channel of the karst funnel is arranged in the base; the double-layer shell structure comprises an upper-layer plugging shell and a lower-layer plugging shell positioned below the upper-layer plugging shell.
Further, the base is made of reinforced concrete; the upper plugging shell and the lower plugging shell are made of reinforced concrete.
Further, the upper layer plugging shell and the lower layer plugging shell are both of a single-curved surface structure or a double-curved surface structure.
Furthermore, unidirectional construction joints are arranged in the upper plugging shell and the lower plugging shell, and water stopping materials are filled in the unidirectional construction joints.
Furthermore, the one-way construction joints arranged in the upper plugging shell and the one-way construction joints arranged in the lower plugging shell are arranged in a staggered mode.
Furthermore, no construction joint is reserved between the double-layer shell structure and the base.
The invention also provides a karst funnel reservoir which comprises the double-shell plugging structure for plugging the water leakage channel of the karst funnel, wherein a water storage area for storing water and performing anti-leakage treatment is formed between the double-shell plugging structure and the peripheral rock mass of the karst funnel positioned at the upper part of the double-shell plugging structure; the bottom surface and the outer side surface of the base are both in contact with the peripheral rock mass of the karst funnel; a flood discharge building for discharging flood, a water taking building for taking water and an emptying building for emptying the water storage area are arranged in the water storage area; the emptying building is arranged at the bottom of the water storage area, the flood discharge building is arranged at the upper part of the water storage area, and the water taking building is arranged in the middle of the water storage area.
Further, the elevation of the bottom surface of the water inlet of the flood discharge building is equal to or slightly lower than the normal water level elevation of the water storage area; the elevation of the bottom surface of the water inlet of the emptying building is equal to or slightly lower than the elevation of the dead water level of the water storage area; the water taking structure is connected with a water delivery pipeline, and the water taking opening elevation of the water taking structure is positioned between the dead water level elevation and the normal water level elevation of the water storage area.
the invention also provides a construction method of the double-shell plugging structure, which comprises the following steps:
1) clearing or treating dangerous rock masses: clearing or treating dangerous rock masses above the elevation of the top surface of the double-shell plugging structure;
2) Excavating a foundation pit of the base: excavating a foundation pit of the foundation pit to a designed elevation, and removing or treating unstable rock masses of a foundation pit slope;
3) constructing a base: constructing a base in the excavated base pit;
4) constructing a lower plugging shell: constructing a lower plugging shell on the inner side of the constructed base;
5) constructing lower water stopping: filling water-stopping materials in the one-way construction joints of the constructed lower-layer plugging shell;
6) constructing an upper plugging shell: constructing an upper plugging shell on the top surface of the constructed lower plugging shell;
7) and (3) water stopping of the upper layer of the construction: and filling water-stopping materials in the one-way construction joints of the constructed upper plugging shell.
Further, in the step 3), the base is made of reinforced concrete, and when the base is constructed, the concrete is maintained to prevent cracking;
in the step 4), the lower plugging shell is made of reinforced concrete, and when the lower plugging shell is constructed, attention is paid to curing the concrete to prevent cracking;
In the step 6), the upper plugging shell is made of reinforced concrete, and when the upper plugging shell is constructed, care is taken to maintain the concrete to prevent cracking.
the invention has the beneficial effects that:
according to the double-shell plugging structure, the double-shell structure is arranged in the base, so that the load of self weight and the like of stored water and silt can be converted into pressure to be transmitted to the surrounding rock mass, the tensile force borne by the plugging structure is effectively reduced, the engineering quantity is reduced, and the economical efficiency is good.
The double-layer shell structure is arranged into the upper-layer plugging shell and the lower-layer plugging shell, and the unidirectional construction joints in the upper-layer plugging shell and the unidirectional construction joints in the lower-layer plugging shell are arranged in a staggered mode, so that the double-layer shell structure is better in anti-seepage performance and longer in service life.
drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
Fig. 1 is a schematic structural view of an embodiment of the karst funnel reservoir of the present invention, specifically, a flood discharge building, a water intake building and an emptying building are omitted;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic structural diagram of a double-shell plugging structure.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
fig. 1 is a schematic structural diagram of an embodiment of the karst funnel reservoir of the present invention. The karst funnel reservoir of this embodiment, including the double-shell block structure 2 that is used for the leak water passageway of shutoff karst funnel, form between the peripheral rock mass 1 that is located the karst funnel on double-shell block structure 2 and is used for the water storage and through the water storage district 3 that antiseep was handled. A flood discharge building for discharging flood, a water taking building for taking water and an emptying building for emptying the water storage area are arranged in the water storage area; the emptying building is arranged at the bottom of the water storage area, the flood discharge building is arranged at the upper part of the water storage area, and the water taking building is arranged in the middle of the water storage area.
the elevation of the bottom surface of the water inlet of the flood discharge building is equal to or slightly lower than the normal water level elevation of the water storage area; the elevation of the bottom surface of the water inlet of the emptying building is equal to or slightly lower than the elevation of the dead water level of the water storage area; the water taking structure is connected with a water delivery pipeline, and the water taking opening elevation of the water taking structure is positioned between the dead water level elevation and the normal water level elevation of the water storage area.
the double-shell plugging structure of this embodiment includes that the inner wall along the leak water channel of karst funnel encircles base 4 that a week set up, is equipped with the double-shell structure that is used for the leak water channel of shutoff karst funnel in the base 4. The double-shell structure of the present embodiment includes an upper plugging shell 5 and a lower plugging shell 6 located below the upper plugging shell 5. The bottom surface and the outer side surface of the base 4 of the embodiment are both contacted with the peripheral rock mass 1 of the karst funnel
specifically, the base 4 is made of reinforced concrete; the upper plugging shell 5 and the lower plugging shell 6 are made of reinforced concrete, the upper plugging shell and the lower plugging shell are both of a single-curved-surface structure or a double-curved-surface structure, and the upper plugging shell and the lower plugging shell of the embodiment are both of double-curved-surface structures. The load of dead weight of water and silt of storing can be turned into pressure and transmit to around the rock mass on, effectively reduce the pulling force that the shutoff structure bore.
In the upper shutoff shell 5 of this embodiment and lower floor's shutoff shell 6 all be equipped with one-way construction joint, the intussuseption of one-way construction joint is filled with stagnant water material, and sets up the one-way construction joint in upper shutoff shell 5 and the one-way construction joint of setting in lower floor's shutoff shell 6 and be mutual dislocation set. And no construction joint is reserved between the double-layer shell structure and the base 4. The double-layer shell structure is arranged into the upper-layer plugging shell and the lower-layer plugging shell, and the unidirectional construction joints in the upper-layer plugging shell and the unidirectional construction joints in the lower-layer plugging shell are arranged in a staggered mode, so that the double-layer shell structure is better in anti-seepage performance and longer in service life.
The double-shell plugging structure of this embodiment through set up double-shell structure in the base, can turn into the load such as the dead weight of the water of storing and silt on pressure transmission reaches the rock mass on every side, effectively reduces the pulling force that plugging structure bore to reduce the engineering volume, economic nature is good.
the construction method of the double-shell plugging structure comprises the following steps:
1) clearing or treating dangerous rock masses: clearing or treating dangerous rock masses above the elevation of the top surface of the double-shell plugging structure;
2) excavating a foundation pit of the base: excavating a foundation pit of the foundation pit to a designed elevation, and removing or treating unstable rock masses of a foundation pit slope;
3) Constructing a base: constructing a base 4 in the excavated base pit; the base 4 of the embodiment is made of reinforced concrete, and when the base is constructed, the concrete is maintained to prevent cracking;
4) Constructing a lower plugging shell: constructing a lower plugging shell on the inner side of the constructed base; the lower plugging shell 6 of the embodiment is made of reinforced concrete, and when the lower plugging shell 6 is constructed, attention is paid to curing the concrete to prevent cracking;
5) Constructing lower water stopping: filling water-stopping materials in the one-way construction joints of the constructed lower plugging shell 6;
6) constructing an upper plugging shell: constructing an upper plugging shell 5 on the top surface of the constructed lower plugging shell 6; the upper plugging shell 5 of the embodiment is made of reinforced concrete, and when the upper plugging shell 5 is constructed, attention is paid to curing the concrete to prevent cracking;
7) And (3) water stopping of the upper layer of the construction: and filling water-stopping materials in the one-way construction joints of the constructed upper plugging shell.
in the karst funnel reservoir of the embodiment, the natural drainage channel of the karst funnel is blocked by the double-shell blocking structure, and a water storage area used for storing water and subjected to anti-leakage treatment is formed between the double-shell blocking structure and the peripheral rock mass of the karst funnel positioned at the upper part of the double-shell blocking structure, so that the karst funnel has the condition of storing surface water to form the reservoir; the emptying building can empty the reservoir so as to overhaul various buildings in the reservoir area; the flood discharge building can drain the redundant incoming water in time so as to ensure the safe operation of the reservoir; the water taking building can be connected with a water conveying pipeline, and water is taken for production and life; in addition, because the pollution sources around the karst funnel are limited and the problem of water and soil loss is not serious, the problem of sediment accumulation of the karst funnel reservoir is not obvious, and the reservoir water quality is better.
the above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (4)
1. The utility model provides a karst funnel reservoir which characterized in that: the double-shell plugging structure comprises a double-shell plugging structure for plugging a water leakage channel of a karst funnel, wherein a water storage area for storing water and performing anti-leakage treatment is formed between the double-shell plugging structure and a peripheral rock mass of the karst funnel positioned at the upper part of the double-shell plugging structure; the double-shell plugging structure comprises a base which is arranged around the inner wall of a water leakage channel of the karst funnel, and the bottom surface and the outer side surface of the base are both in contact with the peripheral rock mass of the karst funnel; a flood discharge building for discharging flood, a water taking building for taking water and an emptying building for emptying the water storage area are arranged in the water storage area; the emptying building is arranged at the bottom of the water storage area, the flood discharge building is arranged at the upper part of the water storage area, and the water taking building is arranged in the middle of the water storage area;
a double-layer shell structure for plugging a water leakage channel of the karst funnel is arranged in the base; the double-layer shell structure comprises an upper-layer plugging shell and a lower-layer plugging shell positioned below the upper-layer plugging shell, and the upper-layer plugging shell and the lower-layer plugging shell are both of a single-curved-surface structure or a double-curved-surface structure;
The base is made of reinforced concrete; the upper plugging shell and the lower plugging shell are made of reinforced concrete;
one-way construction joints are arranged in the upper plugging shell and the lower plugging shell, and water stopping materials are filled in the one-way construction joints;
The unidirectional construction joints arranged in the upper plugging shell and the unidirectional construction joints arranged in the lower plugging shell are arranged in a staggered manner;
Construction joints are not reserved between the double-layer shell structure and the base.
2. the karst funnel reservoir of claim 1, wherein: the elevation of the bottom surface of the water inlet of the flood discharge building is equal to or slightly lower than the normal water level elevation of the water storage area; the elevation of the bottom surface of the water inlet of the emptying building is equal to or slightly lower than the elevation of the dead water level of the water storage area; the water taking structure is connected with a water delivery pipeline, and the water taking opening elevation of the water taking structure is positioned between the dead water level elevation and the normal water level elevation of the water storage area.
3. A construction method of the double-shell block structure according to claim 1 or 2, characterized in that: the method comprises the following steps:
1) Clearing or treating dangerous rock masses: clearing or treating dangerous rock masses above the elevation of the top surface of the double-shell plugging structure;
2) excavating a foundation pit of the base: excavating a foundation pit of the foundation pit to a designed elevation, and removing or treating unstable rock masses of a foundation pit slope;
3) Constructing a base: constructing a base in the excavated base pit;
4) Constructing a lower plugging shell: constructing a lower plugging shell on the inner side of the constructed base;
5) constructing lower water stopping: filling water-stopping materials in the one-way construction joints of the constructed lower-layer plugging shell;
6) Constructing an upper plugging shell: constructing an upper plugging shell on the top surface of the constructed lower plugging shell;
7) And (3) water stopping of the upper layer of the construction: and filling water-stopping materials in the one-way construction joints of the constructed upper plugging shell.
4. The construction method of the double-shell blocking structure according to claim 3, wherein the construction method comprises the following steps:
in the step 3), the base is made of reinforced concrete, and when the base is constructed, the concrete is maintained to prevent cracking;
in the step 4), the lower plugging shell is made of reinforced concrete, and when the lower plugging shell is constructed, attention is paid to curing the concrete to prevent cracking;
in the step 6), the upper plugging shell is made of reinforced concrete, and when the upper plugging shell is constructed, care is taken to maintain the concrete to prevent cracking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710607417.8A CN107338764B (en) | 2017-07-24 | 2017-07-24 | karst funnel reservoir and double-shell plugging structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710607417.8A CN107338764B (en) | 2017-07-24 | 2017-07-24 | karst funnel reservoir and double-shell plugging structure and construction method thereof |
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| CN107338764A CN107338764A (en) | 2017-11-10 |
| CN107338764B true CN107338764B (en) | 2019-12-13 |
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| US8690485B2 (en) * | 2011-10-18 | 2014-04-08 | Eric W. Smith | Rock bolt sealing system |
| CN105442499B (en) * | 2015-12-29 | 2017-07-18 | 云南华电金沙江中游水电开发有限公司 | 300m grades of rock self-bearing type panel construction systems and installation method |
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Effective date of registration: 20211117 Address after: 257092 building 10, No. 38, Huanghe Road, economic development zone, Dongying City, Shandong Province Patentee after: DONGYING UNIVERSITY SCIENCE PARK DEVELOPMENT CO.,LTD. Address before: 400074 Chongqing Jiaotong University, 66 Avenue, Nan'an District, Chongqing Patentee before: CHONGQING JIAOTONG University |
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