CN107587483A - A kind of structure and its construction method that face dam bold shore slope is filled using compound - Google Patents
A kind of structure and its construction method that face dam bold shore slope is filled using compound Download PDFInfo
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- CN107587483A CN107587483A CN201710772480.7A CN201710772480A CN107587483A CN 107587483 A CN107587483 A CN 107587483A CN 201710772480 A CN201710772480 A CN 201710772480A CN 107587483 A CN107587483 A CN 107587483A
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- compound
- slope
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- transition materials
- filled
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 43
- 230000007704 transition Effects 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000009490 roller compaction Methods 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 239000004575 stone Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 241001504664 Crossocheilus latius Species 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- -1 bold shore slope (4) Chemical class 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 9
- 229940125904 compound 1 Drugs 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of structure and its construction method that face dam bold shore slope is filled using compound, and it is to have filled compound (1), Transition Materials (2) and stockpile (3) successively along bold shore slope (4)；The compound (1) is that proportionally mixing and decking and rolling are repaiied slope and constructed and form by the Transition Materials (2), cement and water.The compound has certain viscosity and drying property, beneficial to the density after rolling apparatus roller compaction construction and construction.Compound paves, rolls and can ensure the duration with dam embankment synchronous construction in work progress.Compound in the technical scheme can fully contact with bank slope, avoid the inhomogeneous deformation between dam body enrockment and side slope, it is therefore prevented that because rockfill deforms the excessive or uneven generation for causing dam body seepage system to be destroyed, ensure dam safety.
Description
Technical field
The invention belongs to Hydraulic and Hydro-Power Engineering rock-fill dams to handle technical field of construction.
Background technology
CFRD has obtained numerous Ba Gongzhuanjia's because of its good adaptability, economy and security
Favor.With the extensive use of the dam type, some problems are also spilt cruelly in operation, as dam deformation is excessive or uneven causes
Embankment seepage amount increase, rock enrockment deformation has a great impact to upstream impervious body, once later stage enrockment deform
It is excessive, then phenomena such as panel and joint seal breakage occurs.Found in survey face dam construction, the pad of many engineerings
Phenomena such as layered material cracking, panel and joint seal breakage, is concentrated mainly on a range of bold shore hillside fields band of toe slab downstream, studies carefully
Its reason is mainly that bold shore slope and rockfill deformation are uneven caused, strain tree bridge, the Tianshengqiao-I face dam in such as China.
While the experience and lessons of above-mentioned engineering are used for reference, the treatment measures of the face dam design specification in China to steep slope section
Carry out clearly：" rockfill in the range of 0.3 times~0.5 times height of dam of toe slab downstream should not have hinder the counter-slope that rolls of enrockment and
Suddenly in 1:0.25 steep bank." in engineering construction after specification promulgation, in for similar abrupt slope and counter-slope position according to specification
It is required that employing the mode of " fill concrete or stone masonry ", the uneven change between dam body and bank slope is preferably limited
Shape, upstream bedding material cracking, panel and sealing caused by deformation are taken precautions against and have deformed excessive possibility.But found in construction,
The mode of " fill concrete either stone masonry " need to could be to corresponding until dam embankment closes on elevation to steep bank or counter-slope
The excavation at position, then carry out fill concrete or stone masonry processing.Meanwhile fill concrete scene needs shuttering, very
To arrangement joint bar, the pollution stockpile that cement grout also can be different degrees of, its permeability is influenceed, its feasibility and security are deposited
Certain the defects of；And stone masonry is the material that a kind of opposite concrete has economic advantages, but the time length that artificial heap is built,
Influence to the dam filing duration is particularly evident." fill concrete or stone masonry " technologies that are all, being commonly used at present in engineering
The progress of flood section is crossed on dam embankment and flood control by dam to be influenceed greatly, and construction interference is big, and economy has to be optimized, thereby increases and it is possible to dam
Certain potential safety hazard be present in the draining in body downstream.
The content of the invention
It is an object of the invention to provide a kind of structure and its construction method that face dam bold shore slope is filled using compound, solution
Certainly the backfill processing of periphery steep slope section and dam embankment rise simultaneously during Rockfill Dam, it is ensured that abrupt slope counter-slope section bank slope and
Dam body enrockment forms effective supporter, ensures upstream impervious body structure safety.Optimize the construction investment at backfill position simultaneously, ensure
Dam crosses flood section and fills completion on schedule, excludes the influence that backfill position is constructed to dam body downstream enrockment drainage performance.
What the present invention was realized in：
The present invention is a kind of structure that face dam bold shore slope is filled using compound first, including bold shore slope, the bold shore slope
Slope ratio is suddenly in 1:0.25, or angle be more than 76 °, gradient height 3m and more than, filled compound, transition successively along bold shore slope
Material and stockpile；Compound is that proportionally mixing and decking and rolling are repaiied slope and constructed and form by the Transition Materials, cement and water.Should
Compound has certain viscosity and drying property, beneficial to the density after rolling apparatus roller compaction construction and construction.In work progress
Middle compound paves, rolls and can ensure the duration with dam embankment synchronous construction.Compound in the technical scheme can be with
Fully contacted with bank slope, avoid the inhomogeneous deformation between dam body enrockment and side slope, it is therefore prevented that because rockfill deformation it is excessive or
The uneven generation for causing dam body seepage system to be destroyed of person, has ensured dam safety.
Wherein, 1.6 times of the paving thickness of the compound no more than maximum particle diameter；The paving thickness of Transition Materials be 1~
2m.Transition Materials maximum particle diameter used in compound is 200mm~300mm, and the granule content less than 5mm is 155~30%, clay content
Less than 8%.
The construction method of the above-mentioned structure that face dam bold shore slope is filled using compound is comprised the following steps：
S1, fill the scum silica frost, outwash and the cleaning for loosening block stone on region bold shore slope；
S2, in-site measurement need the bold shore slope regional edge boundary line backfilled, and rower of going forward side by side shows；
S3, Transition Materials are weighed, then require to weigh cement and water according to mix；
S4, cement and Transition Materials mix matching somebody with somebody, then volume ratio as requested adds water, and mix repeatedly, until mixing
Compound dry and wet is uniform；
S5, it is transported to bold shore slope region after the compound mixed and stirred is loaded and starts to pave, shaken using same Transition Materials identical
Dynamic stone roller compound is first answered it is quiet grind 2 times, then rolled using the stone roller that shakes according to Transition Materials requirement；For equipment roll less than
Position should use it is small-sized voluntarily grind or hydraulic pressure tamping plate coordinate complete；
S6, after the completion of material placement grinding to be mixed, require to complete filling out for periphery Transition Materials and stockpile according to dam filing
Build and roller compaction construction；
S7, above-mentioned construction process is repeated until terminating.
Wherein, mix described in S3 requirement be：By mass, in the product after the completion of mix, cement content 60kg
~100kg/m3, water content is 70~120kg/m3。
The abrupt slope position that counter plate Rockfill Dam of the present invention fills scope is carried out using the mixing material of Transition Materials mixing
Backfill rolls so that bank processing can ensure the duration of a project with dam embankment with synchronous construction.Mixing in the technical scheme
Material can fully contact with bank slope, avoids and inhomogeneous deformation occurs between dam body enrockment and bank slope, it is therefore prevented that because enrockment deforms
Cause the destruction of dam body seepage system, ensure dam safety.
Compound in the technical scheme is to use Transition Materials and the compound of cement mixing, more traditional concrete material
Low with cement consumption, aggregate requirements are low, without formwork erection.Because cement content is low in compound, so cement stream will not occur
Material pollution is filled caused by altering, there is preferable economy and security.The technical scheme construction technology is simple, can and dam body
Synchronous rising is filled, has saved the duration.So technical scheme can ensure the safety of dam, save the duration, and have
Effect reduces construction investment, has obvious economic benefit.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Description of reference numerals：1- compounds, 2- Transition Materials, 3- stockpiles, 4- bold shores slope.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples, but not as any limitation of the invention.
As shown in figure 1, this structure of the present invention, is to fill compound 1, Transition Materials 2 successively along bold shore slope 4 to dam outside
With stockpile 3, wherein Transition Materials maximum particle diameter is generally 200mm~300mm used in compound 1, and the granule content less than 5mm is
155~30%, clay content is less than 8%.To ensure the caking property and drying property of compound, it is desirable to which the content of cement is in compound
60kg~100kg/m3, water is 70~120kg/m3, compound 1 fills width and cannot be less than 1.0m, when use machine spreading rolls
When should meet mechanical execution width requirement.(slope ratio is suddenly in 1 for the bank slope that bold shore slope 4 refers in the range of Rockfill Dam:0.25 or angle
Degree be more than 76 °) or adverse slope be higher than 3m.
Embodiment 1：
A kind of method that face dam bold shore slope is filled using compound, specific implementation are as follows：
(1) using the construction equipment such as artificial or live backhoe fill the scum silica frost on region bold shore slope 4, outwash and
Loosen the cleaning of block stone.
(2) in-site measurement needs the regional edge boundary line of bold shore slope 4 backfilled, and rower of going forward side by side shows.
(3) suitable place is selected on the bedding plant periphery of Transition Materials 2, a number of Transition Materials 2 is weighed, then according to water
Cement content 60kg~100kg/m3, 70~120kg/m of water3Mix require to weigh cement and water.
(4) mix matching somebody with somebody with backhoe and Transition Materials 2 after cement is manually unpacked first, mix pass about 5~9 times, with mixed
The color of compound is substantially uniform, and then volume ratio as requested adds water, treats that water base immerses the mixed of Transition Materials 2 and cement
Behind compound inside, with backhoe mix repeatedly, until mixture dry and wet is uniform.
(5) it is transported to the region of bold shore slope 4 after the compound 1 mixed and stirred is loaded to start to pave, paving thickness is no more than maximum
1.6 times of particle diameter, using the same identical vibrating roller of Transition Materials 2 compound is first answered it is quiet grind twice, then using the stone roller that shakes
Rolled according to the requirement of Transition Materials 2.For equipment roll less than position should use it is small-sized voluntarily grind or hydraulic pressure tamping plate coordinate complete.
(6) after the completion of the placement grinding of material 1 to be mixed, require to complete periphery Transition Materials 2 and stockpile 3 according to dam filing
Fill and roller compaction construction.The paving thickness of wherein Transition Materials 2 typically takes 1~2m, dam embankment and rolls parameter according to rule
Model requirement.
(7) above-mentioned construction process is repeated until terminating.
Certainly, the above is the concrete application example of the present invention, and the present invention also has other embodiments, all using equivalent
The technical scheme that replacement or equivalent transformation are formed, all falls within protection domain of the presently claimed invention.
Claims (5)
1. a kind of structure that face dam bold shore slope is filled using compound, including bold shore slope (4), bold shore slope (4) slope than suddenly in
1:0.25, or angle be more than 76 °, gradient height 3m and more than, it is characterised in that：Mixing has been filled successively along bold shore slope (4)
Expect (1), Transition Materials (2) and stockpile (3)；The compound (1) is proportionally mixed by the Transition Materials (2), cement and water
Make and decking and rolling is repaiied slope and constructed and forms.
2. the structure according to claim 1 that face dam bold shore slope is filled using compound, it is characterised in that：The mixing
Expect that the paving thickness of (1) is no more than 1.6 times of maximum particle diameter；The paving thickness of the Transition Materials (2) is 1~2m.
3. the structure according to claim 2 that face dam bold shore slope is filled using compound, it is characterised in that：The mixing
Expect that Transition Materials (2) maximum particle diameter used in (1) is 200mm~300mm, the granule content less than 5mm is 155~30%, clay content
Less than 8%.
4. the construction method of the structure that face dam bold shore slope is filled using compound according to claim 1,2 or 3, it is special
Sign is that this method comprises the following steps：
S1, fill the scum silica frost, outwash and the cleaning for loosening block stone on region bold shore slope (4)；
S2, in-site measurement need bold shore slope (4) the regional edge boundary line backfilled, and rower of going forward side by side shows；
S3, Transition Materials (2) are weighed, then require to weigh cement and water according to mix；
S4, cement and Transition Materials (2) mix matching somebody with somebody, then volume ratio as requested adds water, and mix repeatedly, until mix
Thing dry and wet is uniform；
S5, it is transported to bold shore slope (4) region after the compound mixed and stirred (1) is loaded and starts to pave, using identical with Transition Materials (2)
Vibrating roller compound (1) is first answered it is quiet grind 2 times, then rolled using the stone roller that shakes according to Transition Materials (2) requirement；For setting
It is standby roll less than position should use small-sized voluntarily grind or hydraulic pressure tamping plate coordinates and completed；
S6, after the completion of material (1) placement grinding to be mixed, require to complete periphery Transition Materials (2) and stockpile (3) according to dam filing
Fill and roller compaction construction；
S7, above-mentioned construction process is repeated until terminating.
5. the construction method of the structure according to claim 4 that face dam bold shore slope is filled using compound, its feature are existed
In：Mix described in S3 requires：By mass, in the product after the completion of mix, cement content is 60kg~100kg/m3,
Water content is 70~120kg/m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772480.7A CN107587483A (en) | 2017-08-31 | 2017-08-31 | A kind of structure and its construction method that face dam bold shore slope is filled using compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772480.7A CN107587483A (en) | 2017-08-31 | 2017-08-31 | A kind of structure and its construction method that face dam bold shore slope is filled using compound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107587483A true CN107587483A (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710772480.7A Pending CN107587483A (en) | 2017-08-31 | 2017-08-31 | A kind of structure and its construction method that face dam bold shore slope is filled using compound |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338999A (en) * | 2018-10-22 | 2019-02-15 | 中水电第十工程局（郑州）有限公司 | Using the construction method of cement sand and gravel processing side slope in a kind of rock |
| CN111636385A (en) * | 2020-06-15 | 2020-09-08 | 大连理工大学 | Structure for preventing concrete dam bank slope dam section fracture water leakage |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195025A (en) * | 2013-04-12 | 2013-07-10 | 中国水电顾问集团北京勘测设计研究院 | Cracking protection method for concrete dams |
| CN103790166A (en) * | 2014-01-25 | 2014-05-14 | 西安科技大学 | Method for treating foundation of loess area saturated zone slope filling and digging joint part |
| CN105386448A (en) * | 2015-10-08 | 2016-03-09 | 中国水利水电第十二工程局有限公司 | Filling construction method for backward slope in rock-fill dam slope treatment |
-
2017
- 2017-08-31 CN CN201710772480.7A patent/CN107587483A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195025A (en) * | 2013-04-12 | 2013-07-10 | 中国水电顾问集团北京勘测设计研究院 | Cracking protection method for concrete dams |
| CN103790166A (en) * | 2014-01-25 | 2014-05-14 | 西安科技大学 | Method for treating foundation of loess area saturated zone slope filling and digging joint part |
| CN105386448A (en) * | 2015-10-08 | 2016-03-09 | 中国水利水电第十二工程局有限公司 | Filling construction method for backward slope in rock-fill dam slope treatment |
Non-Patent Citations (1)
| Title |
|---|
| 何无产等: "《高寒地区混凝土面板堆石坝建设经验技术研讨会论文集》", 30 August 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338999A (en) * | 2018-10-22 | 2019-02-15 | 中水电第十工程局（郑州）有限公司 | Using the construction method of cement sand and gravel processing side slope in a kind of rock |
| CN111636385A (en) * | 2020-06-15 | 2020-09-08 | 大连理工大学 | Structure for preventing concrete dam bank slope dam section fracture water leakage |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20180116 |