CN111636385A - Structure for preventing concrete dam bank slope dam section fracture water leakage - Google Patents
Structure for preventing concrete dam bank slope dam section fracture water leakage Download PDFInfo
- Publication number
- CN111636385A CN111636385A CN202010541899.3A CN202010541899A CN111636385A CN 111636385 A CN111636385 A CN 111636385A CN 202010541899 A CN202010541899 A CN 202010541899A CN 111636385 A CN111636385 A CN 111636385A
- Authority
- CN
- China
- Prior art keywords
- bank slope
- water permeable
- dam
- water
- row
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 239000004927 clay Substances 0.000 claims abstract description 23
- 239000011435 rock Substances 0.000 claims abstract description 20
- 238000005336 cracking Methods 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 11
- 239000004746 geotextile Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 240000006413 Prunus persica var. persica Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
Images
Classifications
-
- 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
- E02B7/10—Gravity dams, i.e. those in which the weight of the structure prevents overturning
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
Abstract
The invention discloses a structure for preventing cracking and water leakage of a bank slope dam section of a concrete dam, which comprises a bank slope dam section dam body, bank slope bedrock, a bank slope bedrock surface and a bank slope bedrock plane, wherein a first row of semicircular water permeable pipes and a second row of semicircular water permeable pipes are arranged inside the bank slope dam section dam body and on the bank slope bedrock surface, clay is filled in the first row of semicircular water permeable pipes and the second row of semicircular water permeable pipes, a downstream semicircular water permeable drain pipe and a downstream semicircular water permeable drain pipe are arranged on the bank slope bedrock surface inside the bank slope dam section dam body, and a downstream semicircular water permeable drain pipe are wrapped with water permeable geotextile. The structure effectively prevents the water leakage of the dam body when the dam body of the bank slope dam section shrinks and the rock foundation cracks through the clay backfilled in the semicircular water permeable pipe, and has the advantages of convenient construction, less investment and good effect.
Description
Technical Field
The invention relates to a structure for preventing a concrete dam bank slope dam section from cracking and leaking water.
Background
Firstly, because the concrete gravity dam bank slope dam section is a rock slope, a steep slope is often adopted for construction and excavation, such as 1: 0.3; secondly, the height of the side slope is often higher due to the steep bank slope; and thirdly, because the deformation moduli of the concrete of the bank slope dam section and the bank slope bedrock are different, the shrinkage deformation is inconsistent under the influence of temperature stress and humidity. For the three reasons, the bank slope dam section of the concrete gravity dam is usually subjected to contact grouting in the construction process, namely, a cooling water pipe is buried, the temperature of the dam body is reduced to a stable temperature field by introducing cooling water, and the temperature of the dam body is reduced to the temperature field by introducing the large concrete dam body, more cement is used, the hydration heat is increased, one-stage water introduction, two-stage water introduction and even three-stage water introduction are often needed when the temperature of the dam body is reduced to the temperature field, so that the construction process is multiple, the construction process is complicated, and the quality is not guaranteed well. Although contact grouting is carried out, the phenomenon that the junction of the dam body of the bank slope dam section and bedrock cracks and water leaks occurs in many projects in the actual project, post-processing is very troublesome, labor and time are wasted, money is wasted, and the effect is not good. The operation management of the dam is inconvenient, and potential safety hazards exist due to the existence of water leakage of the dam body. In engineering practice, cracks appear in the Hebei peach forest mouth dam, Panjiakou dam, Xinjiang Chongzhui dam, Longkou dam and the like in sequence, so that water leakage of a dam body is caused, and therefore the problems are urgently needed to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a structure for preventing the bank slope dam section of a concrete dam from cracking and leaking water.
The technical scheme of the invention is as follows:
a structure for preventing the cracking and water leakage of the bank slope dam section of a concrete dam is characterized in that two semicircular water permeable pipes are arranged on the slope of a rock foundation of a bank slope before concrete of the bank slope dam section is poured, clay is filled inside the semicircular water permeable pipes and compacted to form a two-way clay water stop dike, and the dam section of the bank slope and the rock foundation are not consistent in deformation through good plasticity and adaptive deformation capacity of cohesive soil, so that the seepage prevention effect is achieved. The downstream side of the dam section on the slope of the bank slope rock foundation is provided with a forward slope semi-circular water permeable pipe, the water flowing direction semi-circular water permeable pipe is arranged on the plane of the bank slope rock foundation to form a longitudinal and transverse drainage pipe network for intensively draining the leakage water, and the outside of the semi-circular water permeable pipe is wrapped with geotextile to prevent clay particles from losing and to prevent fine particles in the clay from being taken away to play a role in reverse filtration protection. The cohesive soil has good plasticity and adaptive deformability, so that the method can adapt to the condition that the bank slope dam section and the bedrock are deformed inconsistently, and the seepage prevention effect is achieved.
The invention has the beneficial effects that: the structure effectively prevents the water leakage of the dam body when the dam body of the bank slope dam section shrinks and the rock foundation cracks through the clay backfilled in the semicircular water permeable pipe, and has the advantages of convenient construction, less investment and good effect.
Drawings
Fig. 1 is a structure for preventing a bank slope dam section of a concrete dam from cracking and leaking water.
FIG. 2(a) is a schematic view of a semi-circular permeable pipe;
fig. 2(b) is a schematic view of a semicircular water permeable drain pipe.
In the figure: 1, a bank slope dam section dam body; 2, bank slope bedrock; 3, a bank slope bedrock plane; 4, a first row of semi-circular water permeable pipes; 5, a second row of semi-circular permeable pipes; 6, flowing to the semicircular water permeable drain pipe along the water; 7, a semi-circle water permeable drainage pipe is arranged along the slope direction; 8 bank slope bed rock surface; 9, clay building; 10 permeable geotextile.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in fig. 1, a prevent structure of concrete dam bank slope dam section fracture percolating water, including bank slope dam section dam body 1, bank slope basement rock 2, bank slope basement rock face 8, bank slope basement rock plane 3, inside bank slope dam section dam body 1, set up first row semicircle permeable pipe 4 and second row semicircle permeable pipe 5 on bank slope basement rock face 8, first row semicircle permeable pipe 4 and the inside clay 9 of filling of second row semicircle permeable pipe 5, inside bank slope dam section dam body 1, set up in the same direction as the slope semicircle permeable drain pipe 7 on bank slope basement rock face 8, inside bank slope dam section dam body 1, set up in the same direction as the water flow direction on bank slope basement rock plane 3 and permeate water drain pipe 6, in the same direction as the slope semicircle permeable drain pipe 7 and permeate water geotechnological cloth 10 of wrapping with in the same direction as the water flow direction semicircle permeable drain pipe 6.
The distance between the first row of semi-circular water permeable pipes 4 and the second row of semi-circular water permeable pipes 5 is more than or equal to 2.0 m;
the diameters of the first row of semi-circular permeable pipes 4 and the second row of semi-circular permeable pipes 5 are more than or equal to 30cm, the materials are not limited to sand-free permeable pipes, and holes can be drilled in steel pipes;
the diameters of the forward slope semicircular water permeable drain pipe 7 and the forward water flow semicircular water permeable drain pipe 6 are more than or equal to 30cm, and the water permeable pipes are made of, but not limited to, sand-free water permeable pipes and can also be drilled by steel pipes;
in the present embodiment, the construction is performed according to the following steps: before pouring the concrete of the dam body of the bank slope dam section, two semicircular water permeable pipes are arranged on the inclined plane of the rock foundation of the bank slope, clay is filled in the semicircular water permeable pipes and compacted to form two clay water retaining dikes, and the dam body can adapt to the condition that the deformation of the bank slope dam section is inconsistent with that of the rock foundation through the good plasticity and adaptive deformation capability of the cohesive soil, so that the function of seepage prevention is achieved. The downstream side of the dam section on the slope of the bank slope rock foundation is provided with a forward slope semi-circular water permeable pipe, the water flowing direction semi-circular water permeable pipe is arranged on the plane of the bank slope rock foundation to form a longitudinal and transverse drainage pipe network for intensively draining the leakage water, and the outside of the semi-circular water permeable pipe is wrapped with geotextile to prevent clay particles from losing and to prevent fine particles in the clay from being taken away to play a role in reverse filtration protection. Through the good plasticity and the adaptive deformability of the cohesive soil, the construction method can adapt to the condition that the bank slope dam section and the bedrock are deformed inconsistently, thereby achieving the function of seepage prevention and finishing the whole construction.
The above examples are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention is not limited by the examples, i.e., the equivalent changes or modifications made in the spirit of the present invention disclosed are still within the scope of the present invention.
Claims (8)
1. A structure for preventing a bank slope dam section of a concrete dam from cracking and leaking water is characterized by comprising a bank slope dam section dam body (1), a bank slope bedrock (2), a bank slope bedrock plane (3) and a bank slope bedrock surface (8); arranging a first row of semicircular water permeable pipes (4) and a second row of semicircular water permeable pipes (5) in the dam body (1) of the bank slope and on the bed rock surface (8) of the bank slope, and filling clay (9) in the first row of semicircular water permeable pipes (4) and the second row of semicircular water permeable pipes (5); arranging a semi-circular water permeable drain pipe (7) along the slope direction on the base rock surface (8) of the bank slope in the bank slope dam body (1) of the bank slope dam section; the water permeable drainage pipe (6) flowing along the water flow direction semicircle is arranged in the dam body (1) of the bank slope dam section and on the bank slope bedrock plane (3), and the water permeable geotextile (10) wraps the water permeable drainage pipe (7) flowing along the water flow direction semicircle and the water permeable drainage pipe (6) flowing along the water flow direction semicircle.
2. The structure for preventing the cracking and water leakage of the concrete dam bank slope section as claimed in claim 1, wherein the distance between the first row of semi-circular water permeable pipes (4) and the second row of semi-circular water permeable pipes (5) is more than or equal to 2.0 m.
3. The structure for preventing the cracking and water leakage of the concrete dam bank slope section according to claim 1 or 2, wherein the diameter of the first row of semi-circular water permeable pipes (4) and the second row of semi-circular water permeable pipes (5) is more than or equal to 30cm, and the materials are sand-free water permeable pipes or steel pipe drilled holes.
4. The structure for preventing the concrete dam bank slope section from cracking and leaking water according to claim 1 or 2, wherein the particle content of the construction clay (9) is not less than 20%, the plasticity index is not less than 20%, and the construction clay is heavy loam or heavy silty clay.
5. The structure for preventing the cracking and water leakage of the concrete dam bank slope section as claimed in claim 3, wherein said building clay (9) has a grain content of not less than 20% and a plasticity index of not less than 20%, and is heavy loam or heavy silty clay.
6. The structure for preventing the concrete dam bank slope section from cracking and leaking water according to claim 1, 2 or 5, characterized in that the diameters of the downstream semicircular water permeable drainage pipe (7) and the downstream semicircular water permeable drainage pipe (6) are more than or equal to 30cm, and the materials are sand-free water permeable pipes or steel pipe drilled holes.
7. The structure for preventing the concrete dam bank slope section from cracking and leaking water according to claim 3, wherein the diameters of the downstream semicircular water permeable drainage pipe (7) and the downstream semicircular water permeable drainage pipe (6) are more than or equal to 30cm, and the structures are made of sand-free water permeable pipes or steel pipe drilled holes.
8. The structure for preventing the concrete dam bank slope section from cracking and leaking water according to claim 4, wherein the diameters of the downstream semicircular water permeable drainage pipe (7) and the downstream semicircular water permeable drainage pipe (6) are more than or equal to 30cm, and the structures are made of sand-free water permeable pipes or steel pipe drilled holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541899.3A CN111636385A (en) | 2020-06-15 | 2020-06-15 | Structure for preventing concrete dam bank slope dam section fracture water leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541899.3A CN111636385A (en) | 2020-06-15 | 2020-06-15 | Structure for preventing concrete dam bank slope dam section fracture water leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111636385A true CN111636385A (en) | 2020-09-08 |
Family
ID=72330127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010541899.3A Pending CN111636385A (en) | 2020-06-15 | 2020-06-15 | Structure for preventing concrete dam bank slope dam section fracture water leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111636385A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813920A (en) * | 2021-01-07 | 2021-05-18 | 河海大学 | Emergency rescue device for preventing overtopping damage of dike and earth dam and construction method |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175650A (en) * | 1997-09-25 | 1998-03-11 | 鲁立平 | Impervious form layout and adhesive sealing method for post-pouring zone of basement |
| KR20020022446A (en) * | 2000-09-20 | 2002-03-27 | 신훈 | Repairing method of earth-fill dam |
| CN203866782U (en) * | 2014-04-30 | 2014-10-08 | 中国水电顾问集团华东勘测设计研究院有限公司 | Structure for solving concrete gravity dam bank slope dam block lateral stability |
| CN104652372A (en) * | 2015-01-23 | 2015-05-27 | 天津大学 | Upstream-oriented seepage-proofing and crack-resisting roller-compacted concrete gravity dam |
| CN204753534U (en) * | 2015-06-18 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Roller compacted concrete dam internal drain pipe net build structure |
| CN205205784U (en) * | 2015-12-12 | 2016-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Supplementary seepage prevention structure of dam upstream face |
| CN105926544A (en) * | 2016-06-24 | 2016-09-07 | 中国电建集团华东勘测设计研究院有限公司 | Economical debris flow blocking dam structure and construction method thereof |
| CN106351253A (en) * | 2016-09-30 | 2017-01-25 | 岑溪市拓丰科技发展有限公司 | Novel water conservancy project retaining wall |
| CN107130644A (en) * | 2016-11-11 | 2017-09-05 | 新疆北方建设集团有限公司 | Coffering composite geo-membrane and gravelly clay combination against seepage construction method |
| CN107587483A (en) * | 2017-08-31 | 2018-01-16 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of structure and its construction method that face dam bold shore slope is filled using compound |
| CN207130684U (en) * | 2017-09-09 | 2018-03-23 | 蔺义华 | A kind of impervious watertight structure in hydraulic engineering |
| CN207537993U (en) * | 2017-10-31 | 2018-06-26 | 广东水电二局股份有限公司 | A kind of diversion tunnel concrete plug |
| CN209493918U (en) * | 2018-12-13 | 2019-10-15 | 云南润晶工程技术(集团)股份有限公司 | A kind of embankment seepage preventing structure |
| CN212388475U (en) * | 2020-06-15 | 2021-01-22 | 大连理工大学 | Structure for preventing concrete dam bank slope dam section fracture water leakage |
-
2020
- 2020-06-15 CN CN202010541899.3A patent/CN111636385A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175650A (en) * | 1997-09-25 | 1998-03-11 | 鲁立平 | Impervious form layout and adhesive sealing method for post-pouring zone of basement |
| KR20020022446A (en) * | 2000-09-20 | 2002-03-27 | 신훈 | Repairing method of earth-fill dam |
| CN203866782U (en) * | 2014-04-30 | 2014-10-08 | 中国水电顾问集团华东勘测设计研究院有限公司 | Structure for solving concrete gravity dam bank slope dam block lateral stability |
| CN104652372A (en) * | 2015-01-23 | 2015-05-27 | 天津大学 | Upstream-oriented seepage-proofing and crack-resisting roller-compacted concrete gravity dam |
| CN204753534U (en) * | 2015-06-18 | 2015-11-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Roller compacted concrete dam internal drain pipe net build structure |
| CN205205784U (en) * | 2015-12-12 | 2016-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Supplementary seepage prevention structure of dam upstream face |
| CN105926544A (en) * | 2016-06-24 | 2016-09-07 | 中国电建集团华东勘测设计研究院有限公司 | Economical debris flow blocking dam structure and construction method thereof |
| CN106351253A (en) * | 2016-09-30 | 2017-01-25 | 岑溪市拓丰科技发展有限公司 | Novel water conservancy project retaining wall |
| CN107130644A (en) * | 2016-11-11 | 2017-09-05 | 新疆北方建设集团有限公司 | Coffering composite geo-membrane and gravelly clay combination against seepage construction method |
| CN107587483A (en) * | 2017-08-31 | 2018-01-16 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of structure and its construction method that face dam bold shore slope is filled using compound |
| CN207130684U (en) * | 2017-09-09 | 2018-03-23 | 蔺义华 | A kind of impervious watertight structure in hydraulic engineering |
| CN207537993U (en) * | 2017-10-31 | 2018-06-26 | 广东水电二局股份有限公司 | A kind of diversion tunnel concrete plug |
| CN209493918U (en) * | 2018-12-13 | 2019-10-15 | 云南润晶工程技术(集团)股份有限公司 | A kind of embankment seepage preventing structure |
| CN212388475U (en) * | 2020-06-15 | 2021-01-22 | 大连理工大学 | Structure for preventing concrete dam bank slope dam section fracture water leakage |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813920A (en) * | 2021-01-07 | 2021-05-18 | 河海大学 | Emergency rescue device for preventing overtopping damage of dike and earth dam and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102817366B (en) | Prevention and treatment method for full-mechanized caving mining collapse trap area water disaster for shallow-buried ultra-thick coal seam | |
| CN104060619B (en) | Construction method and structure of hydraulic core-wall rockfill dam without cofferdams | |
| CN106894428A (en) | A kind of multi layer waterproof method for blocking of mass raft foundation dewatering well | |
| CN103821114B (en) | A kind of reservoir culvert method for blocking discarded under seepage pressure effect | |
| CN110761307B (en) | Earth-rock cofferdam water seepage treatment structure and construction method | |
| CN212388475U (en) | Structure for preventing concrete dam bank slope dam section fracture water leakage | |
| WO2022100168A1 (en) | Drainage chute and drainage culvert combined plugging and dredging method for tailings pond | |
| CN107119624A (en) | The countermeasure system and implementation of large-scale Dumping Sites in a kind of debris flow gully | |
| CN111636385A (en) | Structure for preventing concrete dam bank slope dam section fracture water leakage | |
| CN207537975U (en) | Deep covering layer top panel Rockfill Dam based moisture barrier structure | |
| CN207228038U (en) | The countermeasure system of large-scale Dumping Sites in a kind of debris flow gully | |
| CN206784415U (en) | Piping in foundation pit fast plugging device | |
| CN104452664B (en) | Reduction by Drainage kill-job renovation technique | |
| CN212405201U (en) | Domatic ballast structure of ardealite storage yard | |
| CN106761914B (en) | A kind of routed water water damage prevention and controls of shallow buried coal seam mine raceway groove flood | |
| CN108000699A (en) | A kind of urban water-through type storm sewer and its preparation process | |
| CN107881987A (en) | Deep covering layer top panel Rockfill Dam based moisture barrier structure | |
| CN109024529B (en) | Construction method of soft foundation reinforcing structure | |
| CN215441736U (en) | Mucky soil embankment structure | |
| CN210636421U (en) | Underwater hollowing defect repairing device for navigation wall pile foundation of ship lock on gravel layer foundation | |
| CN104631425B (en) | A kind of flyash of accelerating arranges the method oozing consolidation | |
| CN113123301A (en) | Partition structure of gravel soil core wall dam | |
| CN108374468B (en) | Method for blocking damage of old flood drainage system of tailing pond | |
| CN105317034A (en) | Sand drain system used for vacuum pre-pressing treatment of marine silt soil and construction method | |
| CN206887996U (en) | A kind of drainage pipeline basis filling anti-collapse structure of antiseepage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |