CN203890949U - Submerged dike structure suitable for mountain river - Google Patents
Submerged dike structure suitable for mountain river Download PDFInfo
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- CN203890949U CN203890949U CN201420325227.9U CN201420325227U CN203890949U CN 203890949 U CN203890949 U CN 203890949U CN 201420325227 U CN201420325227 U CN 201420325227U CN 203890949 U CN203890949 U CN 203890949U
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- dam body
- downstream slope
- applicable
- ground sills
- mountain stream
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Abstract
The utility model discloses a submerged dike structure suitable for a mountain river. The submerged dike structure comprises a dike body, and the cross section of the dike body is overall trapezoidal. The submerged dike structure suitable for the mountain river is characterized in that the lower portion of the dike body is formed by throwing and stacking a plurality of prefabricated regular tetrahedrons, and the side length of the regular tetrahedrons is 1.2-1.4 m; steel bar supporting lugs used for hoisting are embedded and fixed on the regular tetrahedrons, and an aooropode layer is laid on a downstream slope of the dike body. The submerged dike structure suitable for the mountain river has the advantages of being simple in structure, convenient and swift to implement, low in implementation cost, good in strength and impact resistance, long in service life and very suitable for the mountain river.
Description
Technical field
The utility model belongs to river improvement field, is specifically related to a kind of ground sills structure that is applicable to mountain stream.
Background technology
Mountain stream Main Current is through mountain area and most knob, has water level and rises suddenly and sharply and break, and the features such as anxious are flowed on slope, river course suddenly.The upstream, master stream of the water systems such as the Changjiang river, the Yellow River, the Zhujiang River, Ming River and the Lancang River and many tributaries are all mountain streams.In mountain stream, there is the danger, boat beach that hinders such as anxious, shallow, dangerous, shipping is produced to larger maintenance, need meet shipping needs by regulation.Up to the present, to appoint be the communications and transportation mode of most economical, environmental protection in water transportation.Particularly, at central/western China, Rail Highway cost of transportation is large, has again Changjiang River Golden Channe, so the Development of Shipping of the mountain streams such as Upper Yangtze River is more and more subject to the attention of government.
The river shipping potentiality of developing mountain areas, will inevitably implement waterway regulation, and waterway regulation need be arranged waterway regulation building.And ground sills is comparatively common waterway regulation building, dam crest is positioned at below lowest design navigable water level, is submerged in water throughout the year.Build the ground sills in torrent beach in, be mainly used for raising the beach mouth level of tail water, slow down flow velocity on beach, than falling.For River Bed Cross Section irregular, deep trouth is inhaled the shoal that stream forms, and ground sills is used for adjusting river bed cross section form, increases shallow district flow velocity, washes away deep trouth.In the little shoal of some deformation of river bed or downstream, shoal build ground sills or ground sills group, also can reach and stop up high shoal or shoal water level, increase the object of the low water depth of water.Build in the non-navigation Cha Dao of minute distributary section, to increase the flow of navigation Cha Dao.
Ground sills is owing to being submerged under water throughout the year, and the water flow impact pressure bearing is larger, and mountain stream to steep many whirlpools large, fluidised form is extremely disorderly, easily there is damaged or destroyed by flood in ground sills.There is strength deficiency in common ground sills, resistance to overturning shorter defect in poor and application life.
The ground sills structure designing therefore those skilled in the art are necessary to study a kind of special streamflow regime for mountain stream, improves ground sills resistance to overturning, extends the ground sills life-span.
Utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of and can improve anti-current-rush power, extend bulk life time, be more suitable for the ground sills structure of mountain stream.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
A ground sills structure that is applicable to mountain stream, comprises dam body, and dam body cross section integral body is trapezoidal, it is characterized in that, dam body bottom adopts some prefabricated positive tetrahedrons to cast accumulation and obtains, and the described positive tetrahedron length of side is 1.2-1.4m.
The utility model is specially for the flow condition setting of mountain stream, the prefabricated positive tetrahedron that it is 1.2-1.4m that dam body adopts the length of side is piled up and is obtained (optimum is 1.3m), this positive tetrahedron is the volume weight of unified specification, produce good accumulation effect, after accumulation, there is enough intensity, can resist better the impact of stronger current, improve ground sills impact resilience, both extend application life, saved again manufacturing cost and curing time.
As optimization, on described positive tetrahedron, be embedded the reinforcing bar journal stirrup that is fixed with lifting use.Like this, in the time of can conveniently implementing, hanging of positive tetrahedron established, and positive tetrahedron generally adopts that cement concrete structure is prefabricated to be obtained.
As optimization, the wide 5m of described dam body dam crest left and right, the upstream batter gradient is 1:2 left and right, the downstream slope gradient is 1:3 left and right.These data for rule of thumb and hydraulic analogy test obtain, can there is good intensity and dash effect, improve impact resistance, increase the service life.
As optimization, described positive tetrahedron, every length of side length is 1.3m, the reinforcing bar that reinforcing bar journal stirrup is 22mm by diameter obtains.This length of side length is unlikely to be too heavily difficult to handling, is unlikely to again to kick the beam to cause shock resistance effect to reduce, and this bar diameter, can guarantee that the reinforcing bar journal stirrup forming can bear hanging of positive tetrahedron and establish weight.
As optimization, dam body downstream slope is equipped with one deck and turns round king's block.Turning round king's block is a kind of existing member that is usually used in preventing in sea wall sea beat, for herein, can avoid well dam body downstream slope to be subject to drop impact and damage, and extends the integral dam life-span.
As optimization, when described dam body height surpasses 4m, dam body downstream slope bottom stretches out and is formed with downstream slope town pin, and downstream slope town pin width is 5m left and right, downstream slope town pin adopts the stone of 500kg left and right to pile up and obtains, and the surface of downstream slope town pin and land side are all equipped with one deck and turn round king's block.
After optimizing like this, the town pin that downstream slope bottom arranges, one can improve integral dam anti-impact force better, avoids dam body to be washed away; Two can form secondary drop, reduce the drop shock height of downstream slope, reduce drop impact effect.Town pin external surface has also been laid one deck and has been turned round king's block simultaneously, to resist better drop, impacts, and improves the protection effect to dam body, extends the dam body life-span.
In sum, ground sills of the present utility model has simple in structure, implements convenient and swiftly, and implementation cost is cheap, intensity and good impact resistance, and the advantage of long service life is applicable to mountain stream and uses very much.
Accompanying drawing explanation
Fig. 1 is cross-sectional structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of the positive tetrahedron that adopts in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
During concrete enforcement: as depicted in figs. 1 and 2, a ground sills structure that is applicable to mountain stream, comprises dam body 1, and described dam body 1 cross section integral body is trapezoidal, dam body 1 bottom adopts some prefabricated positive tetrahedrons 2 to cast accumulation and obtains, and described positive tetrahedron 2 length of sides are 1.2-1.4m.On described positive tetrahedron 2, be embedded the reinforcing bar journal stirrup 6 that is fixed with lifting use.The wide 5m of described dam body dam crest left and right, the upstream batter gradient is 1:2 left and right, the downstream slope gradient is 1:3 left and right.Wherein, described positive tetrahedron, every length of side length is that 1.3m is optimal size, the reinforcing bar that reinforcing bar journal stirrup is 22mm left and right by diameter obtains.Wherein, dam body downstream slope is equipped with one deck and turns round king's block 3; During enforcement, when described dam body height surpasses 4m, dam body downstream slope bottom stretches out and is formed with downstream slope town pin 4, and downstream slope town pin width is 5m left and right, downstream slope town pin adopts the stone of 500kg left and right to pile up and obtains, and the surface of downstream slope town pin and land side are all equipped with one deck and turn round king's block.Number in the figure 5 represents riverbed.
The utility model is specially for the flow condition setting of mountain stream, the prefabricated positive tetrahedron that it is 1.2-1.4m that dam body adopts the length of side is piled up and is obtained (optimum is 1.3m), this positive tetrahedron is the volume weight of unified specification, produce good accumulation effect, after accumulation, there is enough intensity, can resist better the impact of stronger current, improve ground sills impact resilience, both extend application life, saved again manufacturing cost and curing time.
In this ground sills structure, the king's block of turning round of laying is a kind of existing member that is usually used in preventing in sea wall sea beat, for herein, can avoid well dam body downstream slope to be subject to drop impact and damage, and extends the integral dam life-span.In this ground sills structure, the town pin that downstream slope bottom arranges, one can improve integral dam anti-impact force better, avoids dam body to be washed away; Two can form secondary drop, reduce the drop shock height of downstream slope, reduce drop impact effect.Town pin external surface has also been laid one deck and has been turned round king's block simultaneously, to resist better drop, impacts, and improves the protection effect to dam body, extends the dam body life-span.
Claims (6)
1. a ground sills structure that is applicable to mountain stream, comprises dam body, and dam body cross section integral body is trapezoidal, it is characterized in that, dam body bottom adopts some prefabricated positive tetrahedrons to cast accumulation and obtains, and the described positive tetrahedron length of side is 1.2-1.4m.
2. the ground sills structure that is applicable to mountain stream as claimed in claim 1, is characterized in that, is embedded the reinforcing bar journal stirrup that is fixed with lifting use on described positive tetrahedron.
3. the ground sills structure that is applicable to mountain stream as claimed in claim 1, is characterized in that, the wide 5m of described dam body dam crest, and the upstream batter gradient is 1:2, the downstream slope gradient is 1:3.
4. the ground sills structure that is applicable to mountain stream as claimed in claim 1, is characterized in that, described positive tetrahedron, and every length of side length is 1.2-1.4m, the reinforcing bar that reinforcing bar journal stirrup is 22mm by diameter obtains.
5. the ground sills structure that is applicable to mountain stream as claimed in claim 1, is characterized in that, dam body downstream slope is equipped with one deck and turns round king's block.
6. the ground sills structure that is applicable to mountain stream as claimed in claim 1, it is characterized in that, described dam body height surpasses 4m, dam body downstream slope bottom stretches out and is formed with downstream slope town pin, downstream slope town pin width is 5m, downstream slope town pin adopts the stone of 500kg to pile up and obtains, and the surface of downstream slope town pin and land side are all equipped with one deck and turn round king's block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325227.9U CN203890949U (en) | 2014-06-18 | 2014-06-18 | Submerged dike structure suitable for mountain river |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325227.9U CN203890949U (en) | 2014-06-18 | 2014-06-18 | Submerged dike structure suitable for mountain river |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203890949U true CN203890949U (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420325227.9U Expired - Fee Related CN203890949U (en) | 2014-06-18 | 2014-06-18 | Submerged dike structure suitable for mountain river |
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| Country | Link |
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| CN (1) | CN203890949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677118A (en) * | 2017-03-14 | 2017-05-17 | 交通运输部天津水运工程科学研究所 | Treating method for descending of water level of channel on downstream near-dam section of ship lock in inland river |
-
2014
- 2014-06-18 CN CN201420325227.9U patent/CN203890949U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677118A (en) * | 2017-03-14 | 2017-05-17 | 交通运输部天津水运工程科学研究所 | Treating method for descending of water level of channel on downstream near-dam section of ship lock in inland river |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150618 |
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| EXPY | Termination of patent right or utility model |