CN102296573A - Frame-type debris flow dam and construction method thereof - Google Patents
Frame-type debris flow dam and construction method thereof Download PDFInfo
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- CN102296573A CN102296573A CN2011101356128A CN201110135612A CN102296573A CN 102296573 A CN102296573 A CN 102296573A CN 2011101356128 A CN2011101356128 A CN 2011101356128A CN 201110135612 A CN201110135612 A CN 201110135612A CN 102296573 A CN102296573 A CN 102296573A
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Abstract
The invention discloses a frame-type debris flow dam and a construction method thereof. The frame-type debris flow dam comprises a dam body foundation and a main dam body arranged on the dam body foundation, wherein reinforced concrete frames and stone masonry filled among the reinforced concrete frames form the main dam body. Compared with the prior art, in the invention, the dam body strength is enhanced by blocks through segmenting a stone masonry debris flow dam into relatively independent small spaces by using the reinforced concrete frames aiming at the condition of the dam body damages caused by the difficulty in control of the construction quality, the foundation settlement and the other factors in the widely applied stone masonry debris flow dam, the dam body strength is improved greatly under the condition of slightly increasing the investment, the service life of the dam is prolonged, and the advantages of high strength of the concrete dam and the reinforced concrete dam and the investment conservation of the stone masonry dam are integrated.
Description
Technical field
The present invention relates to a kind of mud-rock flow Prevention Technique, particularly relate to the frame type mud-rock flow debris dam and the job practices thereof of a kind of reinforced concrete frame-stone masonry type.
Background technology
Mud-stone flow disaster is one of main type of China's geological disaster.Along with the development of mountain area economy, the in-depth of development of the West Regions, mud-rock flow engineering control demand is more and more vigorous.Debris dam uses in mud-rock flow is administered in a large number as one of main type of debris flow control works.
At present, the mud-rock flow debris dam mainly contains structural shapes such as stone masonry, concrete, steel concrete.Be subjected to the restriction of social and economic condition, because the stone masonry structure cost is relatively cheap more, state's mud-rock flow debris dam has adopted stone masonry structure in a large number still.But there are following defective in the debris dam of stone masonry structure and job practices thereof: first, because the lithology difference is huge in the different basins, the gravel that has is suitable as the stone masonry aggregate very much, what have can not be used as the stone masonry aggregate, be difficult to accurate assurance for general unit in charge of construction, cause construction quality to be difficult to control; The second, the thicker loose gravelly soil of general covering in the mud-rock flow cheuch, and uneven thickness one the debris dam uneven settlement of foundation often occurs and cause the dam body cracking, and influence the safety of dam body operation; The 3rd, after breakage appearred in stone masonry dam body inside, it was big to repair difficulty, and the dam body intensity after repairing reduces significantly, and influence is used for a long time.
Summary of the invention
Purpose of the present invention is exactly at the deficiencies in the prior art, because factors such as construction quality is difficult to control, foundation settlement cause the situation of dam body breakage, provide a kind of at the stone masonry type mud-rock flow debris dam that adopts at present extensively by the frame type mud-rock flow debris dam and the job practices thereof of filling stone masonry in the reinforced concrete frame; Utilize reinforced concrete frame that stone masonry mud-rock flow debris dam is divided into relatively independent little space, piecemeal strengthens dam body intensity, under the situation that investment increases by a small margin, significantly promote dam body intensity, prolong the useful life on dam, make the compatible concrete dam of frame type mud-rock flow debris dam, reinforced concrete dam intensity height and stone masonry dam reduced investment two aspect advantages in one.
For achieving the above object, technical scheme of the present invention is:
A kind of frame type mud-rock flow debris dam that the present invention proposes comprises dam body basis and the dam body main body of being located on the dam body basis, and reinforced concrete frame and the filling stone masonry between framework constitutes described dam body main body; Particularly be the mud-rock flow debris dam of filling stone masonry between a kind of reinforced concrete frame, compatible concrete dam, reinforced concrete dam intensity height and stone masonry dam reduced investment two aspect advantages are in one.
Some steel concrete cylinders link to each other to constitute one deck horizontal beam (being to comprise on every layer of horizontal beam along the steel concrete cylinder of debris dam length direction with along the steel concrete cylinder of main flow direction) in length and breadth on the horizontal plane, described reinforced concrete frame comprises the vertical beam that is made of the steel concrete cylinder between several layers horizontal beam and every two-layer horizontal beam.The reinforced concrete frame that horizontal beam and vertical beam constitute is divided into some cubic space or relatively independent little spaces such as cuboid space or triangular prism space with described dam body principal space, can strengthen dam body intensity by piecemeal.
On the horizontal beam, along the reinforced concrete post body length a of debris dam length direction is 2.0-4.0m, on the horizontal beam, along the reinforced concrete post body length b of main flow direction is 2.0-4.0m, the cross section that forms between the steel concrete cylinder on the horizontal beam (being on the horizontal beam, along the steel concrete cylinder of debris dam length direction and along the cross section that forms between the steel concrete cylinder of main flow direction) area is generally 0.3 * 0.3m
2-0.4 * 0.4m
2The reinforced concrete post body length h that constitutes vertical beam is 2.0-4.0m, and the cross section that forms between vertical beam and the horizontal beam (promptly constitute the steel concrete cylinder of vertical beam and constitute the cross section that forms between the steel concrete cylinder of horizontal beam) area is generally 0.3 * 0.3m
2-0.4 * 0.4m
2
The overall volume reinforcement ratio of described steel concrete cylinder (comprising steel concrete cylinder that constitutes vertical beam and the steel concrete cylinder that constitutes horizontal beam) is 0.5-2.0%, and bar diameter is 0.012-0.032m, and concrete is C35 or C30 or C25 etc.Described stone masonry is M7.5 or M10, or the like.
The job practices of described frame type mud-rock flow debris dam at first according to the ground of design basis excavation line excavation debris dam, utilizes steel concrete or concrete or stone masonry Ground Treatment bottom to form the dam body basis; On the dam body basis, utilize the steel concrete cylinder on horizontal plane, to link to each other, construct into one deck horizontal beam in length and breadth, construct then stone masonry between two-layer horizontal beam, utilize the vertical beam between the two-layer horizontal beam of reinforced concrete post body construction again, and successively upwards construct to the debris dam dam crest, (construction that is the dam body main body is first one deck horizontal beam, one deck stone masonry of constructing on the horizontal beam basis then, the vertical beam of then constructing to form the dam body main body; And then be one deck horizontal beam, one deck stone masonry, vertical beam; Order is successively upwards constructed to the debris dam dam crest according to this).Before described frame type mud-rock flow debris dam excavation ground, also need bulk according to the actual conditions planning and designing debris dam in mud-rock flow zone, horizontal beam and vertical beam according to the bulk planning framework of debris dam (comprise on the horizontal beam, reinforced concrete post body length a along the debris dam length direction, on the horizontal beam, reinforced concrete post body length b along main flow direction, constitute the reinforced concrete post body length h of vertical beam, or the like), and constitute each root steel concrete cylinder position the debris dam framework of horizontal beam and vertical beam from facade planning.
Compared with prior art, the invention has the beneficial effects as follows: compatible concrete dam, reinforced concrete dam intensity height and stone masonry dam reduced investment two aspect advantages are in one; Utilize reinforced concrete frame that stone masonry mud-rock flow debris dam is divided into relatively independent little space, piecemeal strengthens dam body intensity, avoid significantly reducing because of the stone masonry construction quality problem causes integral dam intensity, perhaps the gene basis sedimentation causes dam body the penetrability crack to occur and destroys the rough sledding of dam body, strengthen the safety of dam body greatly, prolong the useful life of dam body; Compare with concrete dam, reinforced concrete dam, it is about 30～50% that investment is saved, and dam body intensity and useful life reduce about 5～20%; Compare with traditional stone masonry dam, it is about 10～30% that investment increases, and the safety of protection mud-rock flow is higher, and the later stage operation maintenance cost reduces by 50～80% significantly, and expanded service life 5～20 years.
Description of drawings
Fig. 1 is the frame type mud-rock flow debris dam sectional schematic diagram along the debris dam length direction.
Fig. 2 is the frame type mud-rock flow debris dam sectional schematic diagram along main flow direction.
Fig. 3 is the schematic top plan view of frame type mud-rock flow debris dam.
Fig. 4 is the schematic perspective view of reinforced concrete frame.
Number in the figure is as follows:
1 framework, 2 dam body bases
3 horizontal beams, 4 vertical beam
5 stone masonries
On a horizontal beam, along the reinforced concrete post body length of debris dam length direction
On the b horizontal beam, along the reinforced concrete post body length of main flow direction
H constitutes the reinforced concrete post body length of vertical beam
The specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are further described.
Embodiment one
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4.Certain debris flow gully drainage area 24.2km
2, in order to control mud-stone flow disaster, planning is provided with 15 of check dams, 1 of control type debris dam, drainage groove 700m at the middle part, basin.In order to make this debris dam reach the purpose of control type, adopt frame type mud-rock flow debris dam of the present invention.Described frame type mud-rock flow debris dam comprises dam body basis 2 and the dam body main body of being located on the dam body basis 2, and reinforced concrete frame 1 and filling constitute described dam body main body in the stone masonry 5 of 1 of framework.Some steel concrete cylinders link to each other in length and breadth on horizontal plane and constitute one deck horizontal beam 3, and framework 1 comprises five layers of horizontal beam 3 and 3 vertical beam 4 that are made of the steel concrete cylinder of every two-layer horizontal beam.Horizontal beam 3 and vertical beam 4 are divided into some relatively independent little spaces with described dam body principal space, can be cubic space or cuboid space or triangular prism space.
Plan described debris dam according to debris flow gully basin situation, the long 60m of the axis of dam of height of dam 16m, vertical main flow direction, overfall is to the clean height of dam 12.0m on dam body basis 2, and width at dam crest is 2.6m, and dam body inslope ratio is reduced to 1: 0.65.Bulk according to debris dam, on the planning level beam 3, along the reinforced concrete post body length a of debris dam length direction is 4.0m, on the horizontal beam 3, along the reinforced concrete post body length b of main flow direction is 4.0m, and the section area that forms between the steel concrete cylinder on the horizontal beam 3 is 0.4 * 0.4m
2The reinforced concrete post body length h that constitutes vertical beam 4 is 4.0m, and the section area that forms between vertical beam 4 and the horizontal beam 3 is 0.4 * 0.4m
2Each root steel concrete cylinder position debris dam framework 1 from facade planning formation horizontal beam 3 and vertical beam 4.The overall volume reinforcement ratio of described steel concrete cylinder is 2.0%, and bar diameter is 0.032m, and concrete is C35.Stone masonry 5 is M10.
By following job practices the said frame formula mud-rock flow debris dam of planning is constructed:, utilize steel concrete Ground Treatment bottom to form dam body basis 2 at first according to the ground of design basis excavation line excavation debris dam; On dam body basis 2, utilize the steel concrete cylinder of C35 on horizontal plane, to link to each other, construct into one deck horizontal beam 3 in length and breadth, construct the then M10 stone masonry 5 of 3 of two-layer horizontal beams, utilize the vertical beam 4 of 3 of the two-layer horizontal beams of reinforced concrete post body construction of C35 again, and successively upwards construct to the debris dam dam crest, form the dam body main body.
Embodiment two
Do not giving unnecessary details with embodiment one something in common, difference is: the long 24m of the axis of dam of debris dam height of dam 6.0m, vertical main flow direction, and overfall is to the clean height of dam 4.0m on dam body basis 2, and width at dam crest is 2.0m, and dam body inslope ratio is reduced to 1: 0.7.On the horizontal beam 3, along the reinforced concrete post body length a of debris dam length direction is 2.0m, is 2.0m on the horizontal beam 3, along the reinforced concrete post body length b of main flow direction, and the section area that forms between the steel concrete cylinder on the horizontal beam 3 is 0.3 * 0.3m
2The reinforced concrete post body length h that constitutes vertical beam 4 is 2.0m, and the section area that forms between vertical beam 4 and the horizontal beam 3 is 0.3 * 0.3m
2The overall volume reinforcement ratio of described steel concrete cylinder is 0.5%, and bar diameter is 0.012m, and concrete is C25.Stone masonry 5 is M7.5.
Claims (8)
1. frame type mud-rock flow debris dam comprises dam body basis (2) and is located at dam body main body on the dam body basis (2) that it is characterized in that: reinforced concrete frame (1) and the filling stone masonry (5) between framework (1) constitutes described dam body main body.
2. frame type mud-rock flow debris dam according to claim 1, it is characterized in that: some steel concrete cylinders link to each other in length and breadth on horizontal plane and constitute one deck horizontal beam (3), and framework (1) comprises the vertical beam (4) that is made of the steel concrete cylinder between several layers horizontal beam (3) and every two-layer horizontal beam (3).
3. frame type mud-rock flow debris dam according to claim 2 is characterized in that: horizontal beam (3) and vertical beam (4) are divided into some cubic space with described dam body principal space, or the cuboid space, or the triangular prism space.
4. frame type mud-rock flow debris dam according to claim 2, it is characterized in that: horizontal beam (3) goes up, be 2.0-4.0m along the reinforced concrete post body length a of debris dam length direction, horizontal beam (3) goes up, be 2.0-4.0m along the reinforced concrete post body length b of main flow direction, the section area that forms between the steel concrete cylinder on the horizontal beam (3) is 0.3 * 0.3m
2-0.4 * 0.4m
2
5. frame type mud-rock flow debris dam according to claim 2 is characterized in that: the reinforced concrete post body length h that constitutes vertical beam (4) is 2.0-4.0m, and the section area that forms between vertical beam (4) and the horizontal beam (3) is 0.3 * 0.3m
2-0.4 * 0.4m
2
6. according to the arbitrary described frame type mud-rock flow debris dam of claim 2 to 5, it is characterized in that: the overall volume reinforcement ratio of described steel concrete cylinder is 0.5-2.0%, and bar diameter is 0.012-0.032m, and concrete is C35 or C30 or C25.
7. frame type mud-rock flow debris dam according to claim 1 is characterized in that: stone masonry (5) is M7.5 or M10.
8. the job practices of frame type mud-rock flow debris dam as claimed in claim 2 is characterized in that: at first according to the ground of design basis excavation line excavation debris dam, utilize steel concrete or concrete or stone masonry Ground Treatment bottom to form dam body basis (2); On dam body basis (2), utilize the steel concrete cylinder on horizontal plane, to link to each other, construct into one deck horizontal beam (3) in length and breadth, construct then stone masonry (5) between two-layer horizontal beam (3), utilize the vertical beam (4) between the two-layer horizontal beam of reinforced concrete post body construction (3) again, and successively upwards construct to the debris dam dam crest, form the dam body main body.
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| CN2011101356128A CN102296573A (en) | 2011-05-24 | 2011-05-24 | Frame-type debris flow dam and construction method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535408A (en) * | 2012-02-10 | 2012-07-04 | 中国科学院水利部成都山地灾害与环境研究所 | Semi-assembly type ecological debris flow check dam, and construction method thereof |
| CN103088791A (en) * | 2013-02-27 | 2013-05-08 | 中国科学院水利部成都山地灾害与环境研究所 | Energy dissipation type debris flow check dam combined draining and guiding and blocking |
| CN105696528A (en) * | 2015-06-26 | 2016-06-22 | 孙孝仁 | Construction method for automatic flood and water draining sludge dam |
| CN106869081A (en) * | 2017-04-20 | 2017-06-20 | 成都新途科技有限公司 | Steel water stone separates blocking dam and its installation method |
| CN108708354A (en) * | 2018-07-26 | 2018-10-26 | 上海勘测设计研究院有限公司 | A kind of simple sediment trapping promotees silt dam and its method of construction |
| CN111851427A (en) * | 2020-07-22 | 2020-10-30 | 桂林生 | Novel intercepting and cofferdam body of hydropower station and dam body construction method |
| CN112854140A (en) * | 2021-01-08 | 2021-05-28 | 中国地质调查局成都地质调查中心 | Intercepting truss dam for middle and upper reaches of debris flow channel and construction method thereof |
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| JPH10280367A (en) * | 1997-04-08 | 1998-10-20 | Nippon Kokan Light Steel Kk | Dam capable of having vegetating |
| JP2003313852A (en) * | 2002-04-23 | 2003-11-06 | Sumitomo Metal Steel Products Inc | Steel frame weir bank |
| CN2858770Y (en) * | 2005-12-26 | 2007-01-17 | 李文良 | Steel skeleton construction used for concrete dam |
| JP2008184873A (en) * | 2007-01-31 | 2008-08-14 | Nippon Steel & Sumikin Metal Products Co Ltd | Stone-filled structure |
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Patent Citations (4)
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| JPH10280367A (en) * | 1997-04-08 | 1998-10-20 | Nippon Kokan Light Steel Kk | Dam capable of having vegetating |
| JP2003313852A (en) * | 2002-04-23 | 2003-11-06 | Sumitomo Metal Steel Products Inc | Steel frame weir bank |
| CN2858770Y (en) * | 2005-12-26 | 2007-01-17 | 李文良 | Steel skeleton construction used for concrete dam |
| JP2008184873A (en) * | 2007-01-31 | 2008-08-14 | Nippon Steel & Sumikin Metal Products Co Ltd | Stone-filled structure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535408A (en) * | 2012-02-10 | 2012-07-04 | 中国科学院水利部成都山地灾害与环境研究所 | Semi-assembly type ecological debris flow check dam, and construction method thereof |
| WO2013117089A1 (en) * | 2012-02-10 | 2013-08-15 | 中国科学院水利部成都山地灾害与环境研究所 | Semi-assembled ecotype debris dam for mudflow and construction method thereof |
| CN102535408B (en) * | 2012-02-10 | 2014-02-26 | 中国科学院水利部成都山地灾害与环境研究所 | Semi-assembly type ecological debris flow check dam, and construction method thereof |
| CN103088791A (en) * | 2013-02-27 | 2013-05-08 | 中国科学院水利部成都山地灾害与环境研究所 | Energy dissipation type debris flow check dam combined draining and guiding and blocking |
| CN103088791B (en) * | 2013-02-27 | 2014-11-05 | 中国科学院、水利部成都山地灾害与环境研究所 | Energy dissipation type debris flow check dam combined draining and guiding and blocking |
| CN105696528A (en) * | 2015-06-26 | 2016-06-22 | 孙孝仁 | Construction method for automatic flood and water draining sludge dam |
| CN106869081A (en) * | 2017-04-20 | 2017-06-20 | 成都新途科技有限公司 | Steel water stone separates blocking dam and its installation method |
| CN108708354A (en) * | 2018-07-26 | 2018-10-26 | 上海勘测设计研究院有限公司 | A kind of simple sediment trapping promotees silt dam and its method of construction |
| CN111851427A (en) * | 2020-07-22 | 2020-10-30 | 桂林生 | Novel intercepting and cofferdam body of hydropower station and dam body construction method |
| CN112854140A (en) * | 2021-01-08 | 2021-05-28 | 中国地质调查局成都地质调查中心 | Intercepting truss dam for middle and upper reaches of debris flow channel and construction method thereof |
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Application publication date: 20111228 |