CN106012972A - High dam bank slope safety protection facility layout construction method - Google Patents
High dam bank slope safety protection facility layout construction method Download PDFInfo
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- CN106012972A CN106012972A CN201610410902.1A CN201610410902A CN106012972A CN 106012972 A CN106012972 A CN 106012972A CN 201610410902 A CN201610410902 A CN 201610410902A CN 106012972 A CN106012972 A CN 106012972A
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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
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a high dam bank slope safety protection facility layout construction method. The method comprises the following steps: performing the measurement step before the project starts, determining the excavation vertex position of the bank slope and the dam top position; setting a ballast blocking wall, excavating a stone ditch, setting a concrete ballast blocking wall on the position above the excavation vertex of the bank slope by 2-2.5m, wherein the ballast blocking wall is on the position above the vertex by 2-2.5m and above the bank slope base groove, and the length of the ballast blocking wall is longer than the width of the bank slope excavation, the length of the ballast blocking wall at the upstream, downstream sides is longer than the width of the bank slope by 2m. The method is safe and reliable. The most outstanding advantage of the method is that the method brings psychological security feeling to the dam construction personnel, the technical route of the method is definite, the invested protection facilities are simple, the cost is low, and the economic benefit is obvious.
Description
Technical field
The present invention relates to the safety protection field for high dam bank slope construction period, particularly belong to a kind of high dam bank slope safety protection facility construction arrangement method.
Background technology
Reservoir dam is positioned at river valley, mountain area, must excavate the dam foundation and two sides dam slope before dam construction, forms excavation slope, particularly high dam construction, forms tall and big side slope.Bank slope after excavation often has the rock falls of instability, natural hillside more than excavation position there is also loose ground stone, be rolled down under heavy rain effect, and these sandstones very unexpectedly bring bigger potential safety hazard to the operating personnel just constructed on dam.Therefore, it is necessary to take reliable safety prevention measure.
Following measures is often taked in security protection for high dam bank slope, and has weak point:
1) taking interception measure, but way is the most rigorous, reliability is not enough, and interim measure fails to combine very well with permanent measure.
2) exposure part above to bank slope dam body takes pneumatically placed concrete measure, can play protective action, after engineering completes, outside the concrete of sprayed coating is exposed to throughout the year, seems the most ugly between blue mountains and green waters, and the ecological environment good with periphery is inharmonious.
Summary of the invention
It is an object of the invention to provide a kind of high dam bank slope safety protection facility construction arrangement method, the method is safe and reliable, this is the method outstanding advantages the most, the security is brought psychologically to dam district workmen, the method technology path is clear and definite, the protective equipment put into is simple, and with low cost, economic benefit is obvious.
Technical scheme is as follows:
A kind of high dam bank slope safety protection facility construction arrangement method, includes following construction procedure:
Measure before a, commencement of works, determine that bank slope excavates vertex position, dam crest position；
B, arrange gear quarrel wall, excavation falling rocks ditch
1) concrete gear quarrel wall is set at 2 ~ 2.5m more than bank slope excavation summit；
Gear quarrel wall is positioned at the 2 ~ 2.5m of more than summit, above bank slope foundation trench, its length is more than the width of bank slope excavation, and side, upstream and downstream has more 2m than bank slope width, it is ensured that Rolling Stone more than gear quarrel wall can all intercept, dam construction region will not be rolled into, bottom gear quarrel wall, anchor pole is set, gos deep into basement rock, gear quarrel wall bottom width 0.8m, top width 0.3m, high 1.5m, concrete strength is C25, and bottom is seated basement rock；This gear quarrel wall Specific construction technique is: removes earth's surface loose overburden, uses air drill vertical drilling hole, aperture 42mm, hole depth 1.5m, spacing 0.5m, inserts diameter and be not less than 25mm anchor pole, expose 0.5m, and pour into high-strength mortar；Branching standing template, pours gear quarrel wall concrete；
2) excavation falling rocks ditch
Being cut side excavation falling rocks ditch within the walls at concrete gear, and also serve as intercepting ditch, high in the middle of falling rocks ditch, two ends are low, the rainwater of interception is drained to two ends, and falling rocks ditch width is 1 ~ 1.5m；
C, arrange concrete gear the low bank of earth between fields, grassed slope
1) the concrete gear low bank of earth between fields
Arranging the gear low bank of earth between fields at the position, summit of bank slope excavation, parallel with gear quarrel wall, length is also consistent, arranges anchor pole, gos deep into basement rock, keep off low bank of earth between fields bottom width 0.5m, top width 0.2m, high 0.8m bottom the gear low bank of earth between fields, and concrete strength is C25, and bottom is seated basement rock；This gear low bank of earth between fields Specific construction technique: remove earth's surface loose overburden, uses air drill vertical drilling hole, aperture 42mm, hole depth 1.0m, spacing 0.5m, inserts diameter and is not less than 25mm anchor pole, exposes 0.3m, and pour into high-strength mortar；Branching standing template, pours gear low bank of earth between fields concrete；
2) grassed slope
Remove earth's surface unconsolidated formation between the gear low bank of earth between fields and gear quarrel wall, the organic soil of making thickness 0.2m, sod turf at favorable season；
D, crest elevation excavate bank slope excavation, gunite concrete bank protection between summit with up to bank slope, arrange the concrete gear low bank of earth between fields, cultivation " parthenocissus " plant；
1) from top to bottom by design requirement excavation bank slope, this section of bank slope is positioned on dam crest, timely sprayed coating thickness 20cmC25 concrete after excavation；
2) the gear low bank of earth between fields: arranging the gear low bank of earth between fields at crest elevation, length is consistent with bank slope excavation width at this, arranges anchor pole bottom the gear low bank of earth between fields, gos deep into basement rock, keep off low bank of earth between fields bottom width 0.3m, top width 0.2m, high 0.5m, and concrete strength is C25, and bottom is seated basement rock；This gear low bank of earth between fields Specific construction technique: use air drill vertical drilling hole, aperture 42mm, hole depth 0.5m, spacing 0.5m, inserts diameter and is not less than 25mm anchor pole, expose 0.2m, and pour into high-strength mortar；Branching standing template, pours gear low bank of earth between fields concrete；
3) cultivation " parthenocissus " plant
Back at the gear low bank of earth between fields fills out organic soil, cultivates " parthenocissus " plant in suitable season, is covered by the sprayed coating concrete exposed, eliminates dysopia；
E, the most successively excavate the dam bank slope cubic metre of earth and stone from crest elevation, every 20m discrepancy in elevation placement of flexible protecting wall together；
1) the excavation bank slope cubic metre of earth and stone
Require to use drilling and blasting method excavation dam bank slope according to design, be layered Blasting Excavation from top to bottom, for reducing bank slope falling rocks, after explosion is cut clearly, bank slope be cleared up, loosening stone sled is removed；
2) placement of flexible protecting wall
Bank slope excavates downwards discrepancy in elevation 20m, then arrange one flexible protective wall, protecting wall includes vertical vertical rod, footing fixing anchor bar, domatic bracing wire, blocks Dianthus chinensis fence board, and protecting wall length is bank slope excavation width at this, a height of 2.0m of protecting wall, protecting wall vertical rod and anchor spacing are 1.0m, cross bar together with respectively arranging along vertical rod top with middle part, bamboo fence board is the integral slab of establishment, is layed in the inner side of vertical rod and cross bar, lay bilayer, be connected with vertical rod, cross bar with steel wire；
F, dam are the most successively constructed, and when arriving corresponding flexible protective wall, remove flexible protective wall.
It is as follows that described protecting wall is embodied as technique: according to the cabling surveying and locating of flexible protective wall, guarantee anchor pole position, use air drill vertical drilling hole, aperture 42mm, hole depth 1.0m, spacing 1.0m, insert diameter and be not less than 25mm anchor pole, expose 0.3m, and pour into high-strength mortar, pull bar one end is welded with rod end, and the other end and anchor pole are fixedly welded on bank slope, finally lay bamboo fence board.
The operation principle of the present invention:
(1) use different means of defence according to different parts, give full play to the not same-action such as rigidity interception, flexible protective, ecological protection, well prevent bank slope and loosen tumbling of loose ground stone on stone and natural slope.
(2) provisional protection is combined with permanent protection: protection more than dam crest is the safety protection facility of construction period, be again permanent protective equipment after Practical Completion.Flexible protective wall is provisional facility, and the material that this protective equipment is removed can be with recycling, and cost is extremely low.
(3) ecological protection is the most attractive in appearance, plays again fixing soil body effect.Such as grassed slope part, first remove loose ground stone, re-lay organoclay, sod turf, both safety, meet again ecological requirements.
The Advantageous Effects of the present invention is as follows:
(1) the method is safe and reliable, and this is the method outstanding advantages the most, brings the security psychologically to dam district workmen.
(2) the method technology path is clear and definite, and the protective equipment of input is simple, and with low cost, economic benefit is obvious.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
See accompanying drawing, a kind of high dam bank slope safety protection facility construction arrangement method, include following construction procedure:
Measure before a, commencement of works, determine that bank slope excavates vertex position, dam crest position；
B, arrange gear quarrel wall, excavation falling rocks ditch
1) concrete gear quarrel wall 1 is set at 2 ~ 2.5m more than bank slope excavation summit；
Gear quarrel wall is positioned at the 2 ~ 2.5m of more than summit, above bank slope foundation trench, its length is more than the width of bank slope excavation, and side, upstream and downstream has more 2m than bank slope width, it is ensured that Rolling Stone more than gear quarrel wall can all intercept, dam construction region will not be rolled into, bottom gear quarrel wall, anchor pole is set, gos deep into basement rock, gear quarrel wall bottom width 0.8m, top width 0.3m, high 1.5m, concrete strength is C25, and bottom is seated basement rock；This gear quarrel wall Specific construction technique is: removes earth's surface loose overburden, uses air drill vertical drilling hole, aperture 42mm, hole depth 1.5m, spacing 0.5m, inserts diameter and be not less than 25mm anchor pole, expose 0.5m, and pour into high-strength mortar；Branching standing template, pours gear quarrel wall concrete；
2) excavation falling rocks ditch
Being cut side excavation falling rocks ditch within the walls at concrete gear, and also serve as intercepting ditch 2, high in the middle of falling rocks ditch, two ends are low, the rainwater of interception is drained to two ends, and falling rocks ditch width is 1 ~ 1.5m；
C, arrange concrete gear the low bank of earth between fields 5, grassed slope 6
1) the concrete gear low bank of earth between fields 5
Arranging the gear low bank of earth between fields at the position, summit of bank slope excavation, parallel with gear quarrel wall, length is also consistent, arranges anchor pole, gos deep into basement rock, keep off low bank of earth between fields bottom width 0.5m, top width 0.2m, high 0.8m bottom the gear low bank of earth between fields, and concrete strength is C25, and bottom is seated basement rock；This gear low bank of earth between fields Specific construction technique: remove earth's surface loose overburden, uses air drill vertical drilling hole, aperture 42mm, hole depth 1.0m, spacing 0.5m, inserts diameter and is not less than 25mm anchor pole, exposes 0.3m, and pour into high-strength mortar；Branching standing template, pours gear low bank of earth between fields concrete；
2) grassed slope 6
Remove earth's surface unconsolidated formation between the gear low bank of earth between fields and gear quarrel wall, the organic soil of making thickness 0.2m, sod turf at favorable season；
D, crest elevation excavate bank slope excavation, gunite concrete bank protection 7 between summit with up to bank slope, arrange the concrete gear low bank of earth between fields 8, cultivation " parthenocissus " plant 4；
1) from top to bottom by design requirement excavation bank slope, this section of bank slope is positioned on dam crest, timely sprayed coating thickness 20cmC25 concrete after excavation；
2) the gear low bank of earth between fields: arranging the gear low bank of earth between fields at crest elevation, length is consistent with bank slope excavation width at this, arranges anchor pole bottom the gear low bank of earth between fields, gos deep into basement rock, keep off low bank of earth between fields bottom width 0.3m, top width 0.2m, high 0.5m, and concrete strength is C25, and bottom is seated basement rock；This gear low bank of earth between fields Specific construction technique: use air drill vertical drilling hole, aperture 42mm, hole depth 0.5m, spacing 0.5m, inserts diameter and is not less than 25mm anchor pole, expose 0.2m, and pour into high-strength mortar；Branching standing template, pours gear low bank of earth between fields concrete；
3) cultivation " parthenocissus " plant 4
Back at the gear low bank of earth between fields fills out organic soil, cultivates " parthenocissus " plant 4 in suitable season, is covered by the sprayed coating concrete exposed, eliminates dysopia；
E, the most successively excavate the dam bank slope cubic metre of earth and stone from crest elevation, every 20m discrepancy in elevation placement of flexible protecting wall together；
1) the excavation bank slope cubic metre of earth and stone
Require to use drilling and blasting method excavation dam bank slope according to design, be layered Blasting Excavation from top to bottom, for reducing bank slope falling rocks, after explosion is cut clearly, bank slope be cleared up, loosening stone sled is removed；
2) placement of flexible protecting wall 3
Bank slope excavates downwards discrepancy in elevation 20m, then arrange one flexible protective wall 3, protecting wall includes vertical vertical rod 4, footing fixing anchor bar, domatic bracing wire, blocks Dianthus chinensis fence board, and protecting wall length is bank slope excavation width at this, a height of 2.0m of protecting wall, protecting wall vertical rod and anchor spacing are 1.0m, cross bar together with respectively arranging along vertical rod top with middle part, bamboo fence board is the integral slab of establishment, is layed in the inner side of vertical rod and cross bar, lay bilayer, be connected with vertical rod, cross bar with steel wire；It is as follows that protecting wall is embodied as technique: according to the cabling surveying and locating of flexible protective wall, guarantee anchor pole position, use air drill vertical drilling hole, aperture 42mm, hole depth 1.0m, spacing 1.0m, insert diameter and be not less than 25mm anchor pole, expose 0.3m, and pour into high-strength mortar, pull bar one end is welded with rod end, and the other end and anchor pole are fixedly welded on bank slope, finally lay bamboo fence board；
F, dam are the most successively constructed, and when arriving corresponding flexible protective wall, remove flexible protective wall.
Implementing safety prevention measure in the method during the construction of certain reservoir dam, this facility of construction period has intercepted the native stone tumbled effectively, does not causes security incident.Whole work progress is smooth, safe and reliable.
Claims (2)
1. a high dam bank slope safety protection facility construction arrangement method, it is characterised in that include following construction procedure:
Measure before a, commencement of works, determine that bank slope excavates vertex position, dam crest position；
B, arrange gear quarrel wall, excavation falling rocks ditch
1) concrete gear quarrel wall is set at 2 ~ 2.5m more than bank slope excavation summit；
Gear quarrel wall is positioned at the 2 ~ 2.5m of more than summit, above bank slope foundation trench, its length is more than the width of bank slope excavation, and side, upstream and downstream has more 2m than bank slope width, it is ensured that Rolling Stone more than gear quarrel wall can all intercept, dam construction region will not be rolled into, bottom gear quarrel wall, anchor pole is set, gos deep into basement rock, gear quarrel wall bottom width 0.8m, top width 0.3m, high 1.5m, concrete strength is C25, and bottom is seated basement rock；This gear quarrel wall Specific construction technique is: removes earth's surface loose overburden, uses air drill vertical drilling hole, aperture 42mm, hole depth 1.5m, spacing 0.5m, inserts diameter and be not less than 25mm anchor pole, expose 0.5m, and pour into high-strength mortar；Branching standing template, pours gear quarrel wall concrete；
2) excavation falling rocks ditch
Being cut side excavation falling rocks ditch within the walls at concrete gear, and also serve as intercepting ditch, high in the middle of falling rocks ditch, two ends are low, the rainwater of interception is drained to two ends, and falling rocks ditch width is 1 ~ 1.5m；
C, arrange concrete gear the low bank of earth between fields, grassed slope
1) the concrete gear low bank of earth between fields
Arranging the gear low bank of earth between fields at the position, summit of bank slope excavation, parallel with gear quarrel wall, length is also consistent, arranges anchor pole, gos deep into basement rock, keep off low bank of earth between fields bottom width 0.5m, top width 0.2m, high 0.8m bottom the gear low bank of earth between fields, and concrete strength is C25, and bottom is seated basement rock；This gear low bank of earth between fields Specific construction technique: remove earth's surface loose overburden, uses air drill vertical drilling hole, aperture 42mm, hole depth 1.0m, spacing 0.5m, inserts diameter and is not less than 25mm anchor pole, exposes 0.3m, and pour into high-strength mortar；Branching standing template, pours gear low bank of earth between fields concrete；
2) grassed slope
Remove earth's surface unconsolidated formation between the gear low bank of earth between fields and gear quarrel wall, the organic soil of making thickness 0.2m, sod turf at favorable season；
D, crest elevation excavate bank slope excavation, gunite concrete bank protection between summit with up to bank slope, arrange the concrete gear low bank of earth between fields, cultivation " parthenocissus " plant；
1) from top to bottom by design requirement excavation bank slope, this section of bank slope is positioned on dam crest, timely sprayed coating thickness 20cmC25 concrete after excavation；
2) the gear low bank of earth between fields: arranging the gear low bank of earth between fields at crest elevation, length is consistent with bank slope excavation width at this, arranges anchor pole bottom the gear low bank of earth between fields, gos deep into basement rock, keep off low bank of earth between fields bottom width 0.3m, top width 0.2m, high 0.5m, and concrete strength is C25, and bottom is seated basement rock；This gear low bank of earth between fields Specific construction technique: use air drill vertical drilling hole, aperture 42mm, hole depth 0.5m, spacing 0.5m, inserts diameter and is not less than 25mm anchor pole, expose 0.2m, and pour into high-strength mortar；Branching standing template, pours gear low bank of earth between fields concrete；
3) cultivation " parthenocissus " plant
Back at the gear low bank of earth between fields fills out organic soil, cultivates " parthenocissus " plant in suitable season, is covered by the sprayed coating concrete exposed, eliminates dysopia；
E, the most successively excavate the dam bank slope cubic metre of earth and stone from crest elevation, every 20m discrepancy in elevation placement of flexible protecting wall together；
1) the excavation bank slope cubic metre of earth and stone
Require to use drilling and blasting method excavation dam bank slope according to design, be layered Blasting Excavation from top to bottom, for reducing bank slope falling rocks, after explosion is cut clearly, bank slope be cleared up, loosening stone sled is removed；
2) placement of flexible protecting wall
Bank slope excavates downwards discrepancy in elevation 20m, then arrange one flexible protective wall, protecting wall includes vertical vertical rod, footing fixing anchor bar, domatic bracing wire, blocks Dianthus chinensis fence board, and protecting wall length is bank slope excavation width at this, a height of 2.0m of protecting wall, protecting wall vertical rod and anchor spacing are 1.0m, cross bar together with respectively arranging along vertical rod top with middle part, bamboo fence board is the integral slab of establishment, is layed in the inner side of vertical rod and cross bar, lay bilayer, be connected with vertical rod, cross bar with steel wire；
F, dam are the most successively constructed, and when arriving corresponding flexible protective wall, remove flexible protective wall.
2. a high dam bank slope safety protection facility construction arrangement method, it is characterized in that, it is as follows that described protecting wall is embodied as technique: according to the cabling surveying and locating of flexible protective wall, it is ensured that anchor pole position, use air drill vertical drilling hole, aperture 42mm, hole depth 1.0m, spacing 1.0m, insert diameter and be not less than 25mm anchor pole, expose 0.3m, and pour into high-strength mortar, pull bar one end is welded with rod end, and the other end and anchor pole are fixedly welded on bank slope, finally lay bamboo fence board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410902.1A CN106012972A (en) | 2016-06-03 | 2016-06-03 | High dam bank slope safety protection facility layout construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410902.1A CN106012972A (en) | 2016-06-03 | 2016-06-03 | High dam bank slope safety protection facility layout construction method |
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| Publication Number | Publication Date |
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| CN106012972A true CN106012972A (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610410902.1A Withdrawn CN106012972A (en) | 2016-06-03 | 2016-06-03 | High dam bank slope safety protection facility layout construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577351A (en) * | 2019-01-25 | 2019-04-05 | 中建五局土木工程有限公司 | Earthwork evacuation safety protection structure and earthwork evacuation safety protecting method |
| CN114737581A (en) * | 2022-06-14 | 2022-07-12 | 中国铁路设计集团有限公司 | Construction method and protection system for excavating deep cutting close to railway business line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254726Y (en) * | 2008-09-05 | 2009-06-10 | 贵阳铝镁设计研究院 | High slope structure of excavation zone |
| CN203977363U (en) * | 2014-06-26 | 2014-12-03 | 江苏建筑职业技术学院 | A kind of ecological slope protection |
-
2016
- 2016-06-03 CN CN201610410902.1A patent/CN106012972A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254726Y (en) * | 2008-09-05 | 2009-06-10 | 贵阳铝镁设计研究院 | High slope structure of excavation zone |
| CN203977363U (en) * | 2014-06-26 | 2014-12-03 | 江苏建筑职业技术学院 | A kind of ecological slope protection |
Non-Patent Citations (2)
| Title |
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| 崔纲等: ""新疆山区公路边坡崩塌灾害防治技术研究"", 《公路交通科技(应用技术版)》 * |
| 谢鸭伟: ""复建公路边坡***开挖安全防护技术应用"", 《云南水力发电》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577351A (en) * | 2019-01-25 | 2019-04-05 | 中建五局土木工程有限公司 | Earthwork evacuation safety protection structure and earthwork evacuation safety protecting method |
| CN109577351B (en) * | 2019-01-25 | 2024-04-19 | 中建五局土木工程有限公司 | Earth-rock excavation safety protection structure and earth-rock excavation safety protection method |
| CN114737581A (en) * | 2022-06-14 | 2022-07-12 | 中国铁路设计集团有限公司 | Construction method and protection system for excavating deep cutting close to railway business line |
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Application publication date: 20161012 |
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