CN201554008U - Backwater hydraulic building structure capable of being built in flowing water - Google Patents
Backwater hydraulic building structure capable of being built in flowing water Download PDFInfo
- Publication number
- CN201554008U CN201554008U CN2009202003155U CN200920200315U CN201554008U CN 201554008 U CN201554008 U CN 201554008U CN 2009202003155 U CN2009202003155 U CN 2009202003155U CN 200920200315 U CN200920200315 U CN 200920200315U CN 201554008 U CN201554008 U CN 201554008U
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- geotextiles
- wire basket
- weir
- laid
- concrete
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Abstract
The utility model relates to a backwater hydraulic building structure capable of being built in flowing water, which has simple structure and construction process, scouring resistance and fine safety and aims to resolve problems that underwater concreting backwater structure is high in construction difficulty and high in risk. The technical scheme for resolving the problems includes that the backwater hydraulic building structure capable of being built in flowing water is provided with a dam body with a trapezoidal section, and is characterized in that the dam body comprises rock ballasts and a wire basket net bag, wherein the rock ballasts are laid above a covering layer from bottom to top, gravels are filled inside the wire basket net bag, a dam body upstream surface, an overflow surface and a dam top are all laid with geotextile concrete bags, a stilling pool is disposed at a downstream end of the geotextile concrete bag at a dam foot on the downstream side of the dam body, wire basket geotextile sand bags and large blocks of rocks are laid on a bottom plate of the stilling pool, and concrete tetrahedrons mutually connected are laid on the tail portion of the stilling pool. The backwater hydraulic building structure is used for raising water level in hydraulic and hydropower engineering.
Description
Technical field
The utility model relate to a kind of can in moving water, build choke water the hydraulic structure structure.Mainly be applicable in the various Hydraulic and Hydro-Power Engineerings and be used for heading up.
Background technology
In the hydroelectric project that the great rivers in nearly river mouth are built and since the retaining of reservoir, silt supply minimizing and downstream adopt sand, cause the riverbed incision and the level of tail water to descend.Drawdown can cause that the draught-height of draft tube does not reach intrinsic requirement, makes the earthquake of factory building the safety of mill construction occur jeopardizing, and has a strong impact on the safe operation of water wheels and generating set, causes the hydraulic turbine to overhaul.Therefore, for guaranteeing the safe operation of the factory building and the hydraulic turbine, raise tailwater level and build water conservancy project to choke water building be necessary.
For hydraulic structure, under the regular situation, all need retaining to protect dry work down in the cofferdam.The generating in power station all can not be shut down operation generally speaking, and because the width of tailwater channel is narrower, changes in flow rate is big, can't realize stage diversion, can't realize dry work.Therefore, building of tail water weir must be constructed under water in moving water neutralization.Adopt conventional underwater concreting to choke water structure, because changes in flow rate is too big, formwork erection under water, the underwater concreting construction is big, the security risk height, conventional fabric structure and constructure scheme are infeasible.Adopt conventional rock structure, can not solve the problem of anti-impact.Adopt the film bag concrete to carry out subaqueous construction, owing to carry out in moving water, it is infeasible to construct.
Summary of the invention
The technical problems to be solved in the utility model is: at the problem of above-mentioned existence a kind of structure is provided and construction technology is simple, antiscour, safety are good can in moving water, build choke water the hydraulic structure structure, choke water the problem that the structure construction difficulty is big, risk is high to solve the underwater casting concrete.
The technical scheme that the utility model adopted is: that can build in moving water chokes water the hydraulic structure structure, have section and be trapezoidal weir body, it is characterized in that: described weir body comprises the rock ballast and the inner wire basket string bag that is filled with gravel that is laid on the covering layer top from bottom to top, weir body upstream face, spillwag chute and weir crest are all laid geotextiles coagulation mount, the geotextiles coagulation mount downstream at side weir pin place, body downstream, described weir is provided with absorption basin, lay wire basket geotextiles sand bag and boulder on the absorption basin base plate, the absorption basin afterbody is laid interconnective concrete tetrahedron.
In order to guarantee the stability of weir crest geotextiles concrete pack arrangement, connect by iron chains between each geotextiles coagulation mount of body top, weir.
The geotextiles concrete side of wrapping at side weir pin place, body downstream, described weir is provided with one group of interconnective concrete tetrahedron.
The beneficial effects of the utility model are: 1, body structure surface, weir of the present utility model all adopts geotextiles coagulation mount heap to fill out, realized in moving water, building the weir body easily, can not require that cutout obtains the condition of hydrostatic or dry work, simplified construction sequence, reduce engineering cost and security risk, improved the antiscour effect; 2, upstream face adopts the structure of geotextiles coagulation mount, finish construction after, have the function of antiscour, can guarantee the piece stone structure of weir body or the gate position that rubble can not enter the tail water gate pier simultaneously, the problem of gate sealing in the time of can not causing the factory building maintenance; 3, spillwag chute adopts geotextiles concrete pack arrangement, has the high flow velocities of resisting and washes away function, adopts the slope to be connected with upstream and downstream, the wire basket of piling up is satisfied choke water stablizing and safety of hydraulic structure structure; 4, the utility model integral body is flexible structure, the deep trouth position is adopted rock ballast to throw and is filled out, adopt the wire basket string bag to throw than the position, deep and fill out, upstream and downstream adopts worker's cloth bag concrete pack arrangement (finish under water, move water-water reactor before the initial set and build construction) can adapt to the differential settlement of ground; 5, spillwag chute adopts and falls the bank energy-dissipating tech and at downstream part absorption basin is set, and having reduced water can washing away the river course.
Description of drawings
Fig. 1 is a profile of the present utility model.
Fig. 2 is the stereogram of wire basket in the utility model.
Fig. 3 is the stereogram of geotextiles in the utility model.
Fig. 4 is the thin portion of a geotextiles coagulation mount drawing in the utility model.
Fig. 5 is the structural representation of the wire basket string bag in the utility model.
The specific embodiment
Extremely shown in Figure 5 as Fig. 1, present embodiment has section and is trapezoidal weir body, it comprises the rock ballast 7 and the inner wire basket string bag 6 that is filled with gravel that is laid on covering layer 8 tops from bottom to top, weir body upstream face, spillwag chute and weir crest are all laid geotextiles coagulation mount, in order to guarantee the stability of weir crest geotextiles coagulation mount, topmost three layers of geotextiles coagulation mount couple together with iron chains.In this example, weir body upstream face is made up of wire basket geotextiles coagulation mount II 2 and wire basket geotextiles coagulation mount III3, wherein wire basket geotextiles coagulation mount III3 is positioned at upstream face bottom and middle part, wire basket geotextiles coagulation mount II 2 is positioned at top, and wire basket geotextiles coagulation mount II 2 is of a size of 2.5 * 1 * 1m, wire basket geotextiles coagulation mount III3 is of a size of 2 * 1 * 1m, the wire basket of wire basket geotextiles coagulation mount II 2 and wire basket geotextiles coagulation mount III3 adopts zinc-coated wire to make, and the concrete strength of filling in it is lower slightly; Spillwag chute is made up of wire basket geotextiles coagulation mount I 1 and wire basket geotextiles coagulation mount IV4, wherein the bottom of spillwag chute is formed by wire basket geotextiles coagulation mount I 1 and wire basket geotextiles coagulation mount IV4 mixed-arrangement, spillwag chute middle part and top are then laid by wire basket geotextiles coagulation mount I 1 fully and are formed, and wire basket geotextiles coagulation mount I 1 is of a size of 3 * 1 * 1m, wire basket geotextiles coagulation mount IV4 is of a size of 2 * 1 * 1m, the wire basket of wire basket geotextiles coagulation mount I 1 and wire basket geotextiles coagulation mount IV4 adopts the zinc-plated plastic-steel muscle that covers to make, and the concrete strength of filling in it is higher; Weir crest is then laid wire basket geotextiles coagulation mount I 1.
The geotextiles concrete side of wrapping at side weir pin place, body downstream, described weir is provided with one group of interconnective concrete tetrahedron 9, and its bottom side length is 2m.Under the situation of unit generation earial drainage, the geotextiles coagulation mount downstream at side weir pin place, body downstream, weir is provided with absorption basin, lay wire basket geotextiles sand bag 5 and boulder 10 on the absorption basin base plate, being used to reduce water can be to the washing away of river course, and the absorption basin afterbody is laid interconnective concrete tetrahedron 9.
The construction sequence of geotextiles coagulation mount is in this example: at first lay wire basket 13, and embedded geotextiles 14, the back filling layer of concrete 15 of inspecting for acceptance carries out the opening edge sealing then, and hangs to the assigned address with flat barging and to unload sinking.The working procedure of wire basket geotextiles sand bag 5 is identical with the working procedure of geotextiles coagulation mount, only will load concrete change into the filling gravel get final product.
The job practices of present embodiment following (in this example, the geotextiles coagulation mount downstream at side weir pin place, body downstream, weir is provided with absorption basin):
A, covering layer 8 is carried out under water clear base on request, carry out ground landform repetition measurement under water after finishing.
B, on the absorption basin base plate, lay wire basket geotextiles sand bag 5,, and connect and be integral body, above wire basket geotextiles sand bag 5 and downstream sinking boulder 10 then at absorption basin afterbody sinking concrete tetrahedron 9.
C, on the covering layer 8 in downstream, lay one deck or two-layer geotextiles coagulation mount (forming), lay one deck or two-layer wire basket geotextiles coagulation mount III3 on the covering layer 8 of upstream side by wire basket geotextiles coagulation mount I 1 and wire basket geotextiles coagulation mount IV4 mixed-arrangement.
D, carry out the sinking of location under water of the geotextiles concrete side of wrapping, downstream concrete tetrahedron 9, and the pre-buried collar 12 that utilizes iron chains to pass on it is connected to integral body.
After e, above-mentioned downstream wire basket geotextiles sand bag 5, concrete tetrahedron 9, boulder 10, wire basket geotextiles coagulation mount I 1, wire basket geotextiles coagulation mount IV4 finish, carry out the underwater topography repetition measurement, between upstream and downstream geotextiles coagulation mount, throw the slag 7 that rockfills then.
F, repeat above-mentioned steps c, e successively, until the throwing of finishing rock ballast 7 fill out with and the laying of the geotextiles coagulation mount of upstream face and back side.
G, the two-layer wire basket geotextiles coagulation mount I 1 of geotextiles coagulation mount (forming) top laying that on the basis of step f, continues in the downstream by wire basket geotextiles coagulation mount I 1 and wire basket geotextiles coagulation mount IV4 mixed-arrangement, layer of steel wire cage geotextiles coagulation mount III3 is laid in the geotextiles coagulation mount of upstream side (III3 forms by wire basket geotextiles coagulation mount) top, and between, rock ballast 7 tops are laid the inner wire basket string bag 6 that is filled with gravel.
H, repetition above-mentioned steps g, when laying to the last one deck of the wire basket string bag 6 upstream faces, wire basket geotextiles coagulation mount II 2 is filled in its upstream, wire basket geotextiles coagulation mount I 1 is filled in the downstream, and between fills the wire basket string bag 6, finish the wire basket string bag 6 with and the laying of upstream face and back side geotextiles coagulation mount.
I, finish the laying of weir crest (altogether two-layer) at last, wherein upstream side is laid wire basket geotextiles coagulation mount II 2, wire basket geotextiles coagulation mount I 1 is laid at downstream and top, under the less situation of flow, utilize iron chains that uppermost three layers of geotextiles coagulation mount are connected into whole getting final product.
Claims (3)
- One kind can in moving water, build choke water the hydraulic structure structure, have section and be trapezoidal weir body, it is characterized in that: described weir body comprises the rock ballast (7) and the inner wire basket string bag (6) that is filled with gravel that is laid on covering layer (8) top from bottom to top, weir body upstream face, spillwag chute and weir crest are all laid geotextiles coagulation mount, the geotextiles coagulation mount downstream at side weir pin place, body downstream, described weir is provided with absorption basin, lay wire basket geotextiles sand bag (5) and boulder (10) on the absorption basin base plate, the absorption basin afterbody is laid interconnective concrete tetrahedron (9).
- 2. according to claim 1 can in moving water, build choke water the hydraulic structure structure, it is characterized in that: connect by iron chains between each geotextiles coagulation mount of body top, weir.
- 3. according to claim 1 and 2 can in moving water, build choke water the hydraulic structure structure, it is characterized in that: the geotextiles concrete side of wrapping at side weir pin place, body downstream, described weir is provided with one group of interconnective concrete tetrahedron (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202003155U CN201554008U (en) | 2009-11-09 | 2009-11-09 | Backwater hydraulic building structure capable of being built in flowing water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202003155U CN201554008U (en) | 2009-11-09 | 2009-11-09 | Backwater hydraulic building structure capable of being built in flowing water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554008U true CN201554008U (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202003155U Expired - Lifetime CN201554008U (en) | 2009-11-09 | 2009-11-09 | Backwater hydraulic building structure capable of being built in flowing water |
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| Country | Link |
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| CN (1) | CN201554008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705668B (en) * | 2009-11-09 | 2011-08-17 | 中国水电顾问集团华东勘测设计研究院 | Damming water conservancy project construction structure constructed in flowing water and construction method thereof |
-
2009
- 2009-11-09 CN CN2009202003155U patent/CN201554008U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705668B (en) * | 2009-11-09 | 2011-08-17 | 中国水电顾问集团华东勘测设计研究院 | Damming water conservancy project construction structure constructed in flowing water and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100818 Effective date of abandoning: 20091109 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100818 Effective date of abandoning: 20091109 |