CN205999865U - A kind of sediment trapping bank structure - Google Patents
A kind of sediment trapping bank structure Download PDFInfo
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- CN205999865U CN205999865U CN201621047068.6U CN201621047068U CN205999865U CN 205999865 U CN205999865 U CN 205999865U CN 201621047068 U CN201621047068 U CN 201621047068U CN 205999865 U CN205999865 U CN 205999865U
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- sediment trapping
- bank
- trapping bank
- cofferdam
- wall
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Abstract
The utility model discloses a kind of sediment trapping bank structure, belong to Hydraulic and Hydro-Power Engineering field, a kind of sediment trapping bank structure that cofferdam and sediment trapping bank combine and its construction technology are provided, sediment trapping bank therein is the earth and rockfill dam that is piled up by earth and stone material, and is provided with a layer concrete bank protection in the upstream side in sediment trapping bank, top surface and downstream side.The utility model can be in cofferdam using rear by removing part cofferdam, by remaining part cofferdam directly as sediment trapping bank, and by arranging corresponding concrete revetment structure, you can avoid sediment trapping bank from being washed, while guaranteeing the stability of sediment trapping bank；Technical barrier that cofferdam directly as sediment trapping bank brought thus is overcome.While the utility model reduces the size in foundation ditch cofferdam, engineering construction amount is reduced, shortens the construction period.
Description
Technical field
The utility model belongs to Hydraulic and Hydro-Power Engineering field, more particularly to a kind of sediment trapping bank structure.
Background technology
In Hydraulic and Hydro-Power Engineering, an emphasis of consideration is needed when the water diversion and sand control in river course is design.In order to avoid river
Stream silt enters factory building unit, reduces silt and the abrasion of unit is damaged, often set in factory building water inlet and diversion tunnel water inlet
Sediment trapping bank structure is put, so that the stop to river sand is played, and ensures that clear water enters factory building unit.At present, the pattern of sediment trapping bank is general
In conjunction with actual conditions arrange, common are concrete gravity type, concrete prop up gear formula, grinding coagulation soil arcuately, rock-fill dams pattern
Deng.But, sediment trapping bank structure of the prior art, construction when, be generally arranged inside foundation ditch cofferdam, and with foundation ditch cofferdam
Separately positioned；And form as existing foundation ditch cofferdam generally uses to be piled up by earth and stone material, therefore directly can not make
Use for sediment trapping bank structure.In addition, in prior art, in order to ensure the homeostasis of sediment trapping bank structure, generally also needing to blocking
Husky bank structure and its foundation carry out proper treatment.In prior art the shortcoming of sediment trapping bank structure mainly by following some：
1st, the scope in foundation ditch cofferdam increased, due to generally including dash, sluicing, diversion and power etc. in foundation ditch cofferdam
Building, simultaneously because sediment trapping bank structure is also disposed in foundation ditch cofferdam, therefore causes foundation ditch cofferdam scope larger, and then to base
Drawing water in the cofferdam of hole, drainage system amount are big, while cofferdam itself quantities will also increase.
2nd, will be separately positioned to cofferdam and sediment trapping bank structure, quantities is larger.And due to being separately provided sediment trapping bank, in addition it is also necessary to
The operating modes such as its stable, stress are checked, to guarantee that basis is not washed；If basic cover layer is deeper, the quantities of sediment trapping bank will
Bigger.
3rd, the construction of sediment trapping bank is carried out in foundation ditch cofferdam, and the construction with major projects such as dash, sluicing, diversion and powers has
Interference, increased difficulty of construction, increased the construction period.
Utility model content
The technical problem that the utility model is solved is to provide a kind of sediment trapping bank structure for solving above-mentioned technical problem, and which can be straight
The part by the use of cofferdam is connect as sediment trapping bank structure.
The utility model solves the technical scheme adopted by its technical problem：A kind of sediment trapping bank structure, including building
Dam body in river course, the dam body are divided into flood discharge section and factory building section, also include to lead wall and sediment trapping bank, and the wall of leading is arranged on flood discharge
Between section and factory building section, and lead one end of wall and be connected with dam body, lead wall the other end upstream extend after with sediment trapping bank one
End connection；The sediment trapping bank is arranged on the corresponding upstream of factory building section, and one end of sediment trapping bank is connected with the bank of river course side,
The other end of sediment trapping bank is connected with wall is led；The sediment trapping bank is the earth and rockfill dam that is piled up by earth and stone material, and in sediment trapping bank
A layer concrete bank protection is provided with upstream side, top surface and downstream side.
It is further：The sediment trapping bank with respect to river course flow direction be obliquely installed, and on sediment trapping bank with lead what wall was connected
One end is located at the downstream of the one end that be connected on sediment trapping bank with river course side bank.
It is further：Inlet channel is provided between the dam body of sediment trapping bank and factory building section, in the upper surface of inlet channel
It is provided with a layer concrete bank protection.
It is further：The elevation for leading wall is consistent with the elevation of sediment trapping bank.
In addition, the utility model also provides a kind of sediment trapping bank structure construction technique, the sediment trapping bank structure is above-mentioned reality
With new described sediment trapping bank structure, comprise the steps：
A, cofferdam is built in the river course to intercept river course, the two ends in cofferdam are connected with the both sides bank in river course respectively；
B, carry out leading the construction of the building between wall, dam body and dam body and cofferdam in cofferdam downstream；The wall of leading
One end is connected with cofferdam, and the other end for leading wall is connected with dam body；It is flood discharge section positioned at the dam body for leading wall side, another positioned at wall is led
The dam body of side is factory building section；And it is first paragraph cofferdam to be located at and lead wall side and one section cofferdam corresponding with flood discharge section, and is located at
Lead wall opposite side and one section cofferdam corresponding with factory building section is second segment cofferdam；
After the completion of architecture construction between C, wall to be led, dam body and dam body and cofferdam, first paragraph cofferdam is removed completely；
D, completely remove first paragraph cofferdam after, while when the corresponding actual water level elevation of the upstream side in second segment cofferdam
After H decreases below the design elevation of top surface h1 of sediment trapping bank to be built, it is higher than above-mentioned sediment trapping to be built to remove on second segment cofferdam
The unnecessary cofferdam of the design elevation of top surface h1 of bank, and the part that second segment cofferdam is left behind is sediment trapping bank；
One layer concrete bank protection is set in E, the upstream side in sediment trapping bank, top surface and downstream side.
It is further：In stepb, the construction for carrying out the building between dam body and cofferdam includes to apply inlet channel
Work；Afterwards in step E, a layer concrete bank protection is also equipped with the upper surface of inlet channel.
It is further：When step D is carried out, the floodgate that can be opened in flood discharge section carries out flood discharge, to drop further
The corresponding actual water level elevation H of the upstream side in low second segment cofferdam.
It is further：Step D is carried out within the dry season in river course.
The beneficial effects of the utility model are：Sediment trapping bank in the utility model is the native stone that is piled up by earth and stone material
Dam, therefore, by remaining part cofferdam directly as sediment trapping bank and can pass through in cofferdam using rear by removing part cofferdam
Corresponding concrete revetment structure is set, you can avoid sediment trapping bank from being washed, while guaranteeing the stability of sediment trapping bank；Thus gram
The technical barrier brought by cofferdam has been taken directly as sediment trapping bank.In addition, the utility model provide to above-mentioned sediment trapping bank tie
The construction technology of structure, it is achieved that directly build up sediment trapping bank using part cofferdam, therefore reduce the size in foundation ditch cofferdam, reduce
Engineering construction amount, shortens the construction period；While and the construction to sediment trapping bank also the construction of other main buildings will not be made
Become considerable influence；In addition, sediment trapping bank also ensures that stablizing for sediment trapping camphyl plinth directly using the foundation structure in cofferdam.
Description of the drawings
Fig. 1 is the schematic diagram of sediment trapping bank structure described in the utility model；
Fig. 2 is the schematic diagram of Section A-A in Fig. 1；
Fig. 3, Fig. 4, Fig. 6 are the schematic diagram of each construction stage in construction technology described in the utility model；
Fig. 5 is the schematic diagram at B-B interface in Fig. 4；
Fig. 7, Fig. 8 are the schematic diagram of C-C structure in Fig. 6；And it is divided into the corresponding two kinds different modes for removing cofferdam.
In figure is labeled as：River course 1, dam body 2, flood discharge section 21, factory building section 22, lead wall 3, sediment trapping bank 4, concrete revetment 5, enter
Water channel 6, cofferdam 7, first paragraph cofferdam 71, second segment cofferdam 72, unnecessary cofferdam 721, basis 8, actual water level when carrying out step D
Elevation H；Water level elevation h2 when the design elevation of top surface h1 of sediment trapping bank, dam run.
Specific embodiment
With reference to the accompanying drawings and detailed description the utility model is further illustrated.
As shown in fig. 1, a kind of sediment trapping bank structure described in the utility model, including dam body 2 of the build in river course 1,
The dam body is divided into flood discharge section 21 and factory building section 22, also includes to lead wall 3 and sediment trapping bank 4, and the wall 3 of leading is arranged on 21 He of flood discharge section
Between factory building section 22, and lead one end of wall 3 and be connected with dam body, lead wall 3 the other end upstream extend after with sediment trapping bank 4 one
End connection；The sediment trapping bank 4 is arranged on the corresponding upstream of factory building section 22, and the bank of one end of sediment trapping bank 4 and 1 side of river course
Connection, the other end of sediment trapping bank 4 are connected with wall 3 is led；The sediment trapping bank 4 is the earth and rockfill dam that is piled up by earth and stone material, and
A layer concrete bank protection 5 is provided with the upstream side of sediment trapping bank 4, top surface and downstream side.
Wherein, the effect of concrete revetment 5 be for being wrapped in the periphery of sediment trapping bank 4 to play a protective role, because of dam
Normal after building up whole sediment trapping bank 4 will be located at below the water level elevation h2 during operation when running, therefore for being piled up by earth and stone material
Sediment trapping bank 4 for, by arrange concrete revetment 5, can effectively avoid earth and stone material by erosion, and then guarantee entirely to block
The stablizing of husky bank 4.And due to the sediment trapping bank 4 in the utility model can directly using earth and stone material pile up earth and rockfill dam, therefore
Directly can be built using part cofferdam, the recycling to cofferdam is so achieved that, while can also reduce sediment trapping bank 4
Construction volume, and can also reduce the size in whole foundation ditch cofferdam, reduce whole project, reduction of erection time, reduces cost etc..
More specifically, also the sediment trapping bank 4 can be obliquely installed with respect to river course flow direction, as shown in fig. 1；And sediment trapping
With the downstream for leading one end that wall 3 is connected and being located at the one end that be connected on sediment trapping bank 4 with 1 side bank of river course on bank 4.So, pile up
Can be more conducive to flow towards 21 direction of flood discharge section in the river sand of sediment trapping Kan4Chu, river sand bulk deposition is reduced to sediment trapping Kan4Chu's
Situation.
In addition, generally between the dam body of sediment trapping bank 4 and factory building section 22, be also provided with inlet channel 6 be beneficial to into water, at this
In the case of kind, the utility model also can be provided with a layer concrete bank protection 5 in the upper surface of inlet channel 6；And the concrete shield
Slope 5 also can be consistent with the concrete revetment 5 arranged on sediment trapping bank 4.
In addition, the effect for leading wall 3 is for splitting flood discharge section 21 and factory building section 22, with avoid river sand by lead wall 3 right
The position that answers is entered in factory building section；Certainly, generally the elevation for leading wall 3 is set to consistent with the elevation of sediment trapping bank 4
Situation.
In addition, the utility model also provides a kind of Specific construction work to above-mentioned sediment trapping bank structure described in the utility model
Skill, specifically can refer to accompanying drawing 3 to the schematic diagram of each construction stage shown in accompanying drawing 8；The construction technology comprises the steps：
A, cofferdam 7 is built in the river course to intercept river course, the two ends in cofferdam 7 are connected with the both sides bank in river course 1 respectively；
Now situation shown in respective figure 3；
B, carry out leading the construction of the building between wall 3, dam body 2 and dam body 2 and cofferdam 7 in 7 downstream of cofferdam；Described lead
One end of wall 3 is connected with cofferdam, and the other end for leading wall 3 is connected with dam body；It is flood discharge section 21 positioned at the dam body 2 for leading 3 side of wall, position
It is factory building section 22 in the dam body for leading wall opposite side；And be located at 3 side of wall and one section cofferdam corresponding with flood discharge section 21 is led for the
One section of cofferdam 71, and it is located at that to lead 3 opposite side of wall and one section cofferdam corresponding with factory building section 22 be second segment cofferdam 72；Now correspond to
Situation shown in accompanying drawing 4 and accompanying drawing 5；
After the completion of architecture construction between C, wall to be led 3, dam body 2 and dam body 2 and cofferdam 7, first paragraph is removed completely
Cofferdam 71；
D, completely remove first paragraph cofferdam 71 after, while when the corresponding actual water level of the upstream side in second segment cofferdam 72
After elevation H decreases below the design elevation of top surface h1 of sediment trapping bank 4 to be built, remove higher than above-mentioned to be repaired on second segment cofferdam 72
The unnecessary cofferdam 721 of the design elevation of top surface h1 of sediment trapping bank 4 is built, and the part that second segment cofferdam 72 is left behind is sediment trapping bank
4；
One layer concrete bank protection 5 is set in E, the upstream side in sediment trapping bank 4, top surface and downstream side.Now correspond to attached
Situation shown in Fig. 6, Fig. 7 and Fig. 8；
Wherein, cofferdam 7 be for intercepting river course, with as dam body 2 downstream, lead the building bodies such as wall 3 construction provide
Condition.In the prior art, cofferdam 7 needs to be removed completely after the completion of whole building main body construction；Therefore its quantities
Larger.And in the utility model, it is only necessary to part cofferdam 7 is removed, the concrete cofferdam 7 for needing to remove includes two parts,
It is that unnecessary on the first paragraph cofferdam 71 and the part second segment cofferdam 72 removed in step D that removes in step C encloses respectively
Weir 721.Because cofferdam 7 needs to intercept river course, therefore the elevation of its top surface is often annual corresponding under normal circumstances higher than river course
Water level elevation, and sediment trapping bank 4 then requires water level elevation h2 when running less than dam, therefore it is required that the design of sediment trapping bank 4
Elevation of top surface h1 is typically less than h2's, and h2 is typically less than the elevation of top surface in cofferdam 7.Therefore, the utility model is direct
Using part cofferdam 7 as sediment trapping bank 4 when, need remove be higher by sediment trapping bank 4 design elevation of top surface h1 unnecessary cofferdam 721
Part, specifically can refer to shown in accompanying drawing 7, so when remove unnecessary cofferdam 721 after, remaining part can be used as sediment trapping bank
4.Certainly, more specifically, as shown in Figure 8, in the unnecessary cofferdam 721 for removing the design elevation of top surface h1 for being higher by sediment trapping bank 4
During part, the also dismountable second segment cofferdam 72 positioned at upstream part, to reduce width of the sediment trapping bank 4 in river course flow direction.
Certainly, after unnecessary cofferdam 721 accordingly has been removed, need to carry out the construction of concrete revetment 5 immediately, to guarantee
The stability of sediment trapping bank 4, because remaining cofferdam part 7 is usually the earth and rockfill dam that earth and stone material is piled up, therefore its water resistant stream
Scouring effect is poor, it is necessary to arranges concrete revetment 5 and is protected.
Certainly, for the ease of the construction of concrete revetment 5, typically when unnecessary cofferdam 721 is removed, it is desirable to second segment cofferdam
The corresponding actual water level elevation H of 72 upstream side decreases below the design elevation of top surface h1 of sediment trapping bank 4 to be built.So,
Even if after removing unnecessary cofferdam 721, also can be played to river course by remaining part cofferdam (the sediment trapping bank 4 i.e. in accompanying drawing 7, Fig. 8)
Interception result, while also providing condition for the construction of concrete revetment 5 afterwards.In addition, when step D is carried out, due to
The first paragraph cofferdam 71 in flood discharge section 21 is removed, therefore can have been carried out by opening the floodgate in flood discharge section 21
Flood discharge, with the corresponding actual water level elevation H of the upstream side that reduces second segment cofferdam 72 further.Certainly, step D is being carried out
When, also may be selected to be constructed within the dry season in river course accordingly, because within the dry season in river course, the water level in river course is high
Degree is generally minimum, therefore can be easier to meet execution conditions.
In addition, it is necessary to, it is noted that due to the upstream side in sediment trapping bank 4, there is part all the time and be located at below the water surface, because
This carries out the construction relative difficult of concrete revetment 5 to the part, therefore, by entering when actual water level elevation H is relatively low as far as possible
Row construction, can reduce difficulty as far as possible.In addition, being located at below the water surface if it is necessary, can also abandon the upstream side to sediment trapping bank 4
The construction of partial concrete revetment 5, or the part side slope is protected using other modes；Enter for example with reinforcing bar web frame
Row slope protection.
In addition, when the construction of building between dam body 2 and cofferdam 7 also in stepb, can be carried out, it may include to water inlet
The construction of canal 6；Accordingly in step E afterwards, the upper surface of inlet channel 6 is also equipped with a layer concrete bank protection 5.
In addition, for concrete revetment 5 thickness typically can according to the Slope of sediment trapping bank 4 ratio, basic geology parameter and
The conditions such as flow rate of water flow comprehensively determine, are no longer discussed in detail herein.In addition, in practice of construction, the thickness phase of concrete revetment 5
For the height of sediment trapping bank 4, ratio is very little (in order to make it easy to understand, therefore protecting concrete in accompanying drawing of the present utility model
The thickness on slope 5 is drawn relatively thick), although in above-mentioned elaboration and the design elevation of top surface of the sediment trapping bank of indication in the accompanying drawings
H1 is the thickness for not including concrete revetment 5, but the design elevation of top surface h1 for sediment trapping bank in Practical Project can also be wrapped
Thickness containing concrete revetment 5.
Claims (4)
1. a kind of sediment trapping bank structure, including building the dam body (2) in river course (1), the dam body is divided into flood discharge section (21) and factory
Room section (22), it is characterised in that：Also include to lead wall (3) and sediment trapping bank (4), the wall (3) of leading is arranged on flood discharge section (21) and factory
Between room section (22), and lead one end of wall (3) and be connected with dam body, lead wall (3) the other end upstream extend after with sediment trapping bank
(4) one end connection；Sediment trapping bank (4) are arranged on the corresponding upstream of factory building section (22), and one end of sediment trapping bank (4) and river
The bank connection of road (1) side, the other end of sediment trapping bank (4) are connected with wall (3) is led；Sediment trapping bank (4) be by earth and stone material heap
The earth and rockfill dam of product, and in the upstream side in sediment trapping bank (4), top surface and downstream side, it is provided with layer concrete shield
Slope (5).
2. sediment trapping bank structure as claimed in claim 1, it is characterised in that：Sediment trapping bank (4) are inclined with respect to river course flow direction
Arrange, and sediment trapping bank (4) is upper is connected with river course (1) side bank with leading one end that wall (3) is connected and being located at sediment trapping bank (4) and go up
The downstream of one end.
3. sediment trapping bank structure as claimed in claim 1, it is characterised in that：Sediment trapping bank (4) and factory building section (22) dam body it
Between be provided with inlet channel (6), be also equipped with a layer concrete bank protection (5) in the upper surface of inlet channel (6).
4. sediment trapping bank structure as claimed any one in claims 1 to 3, it is characterised in that：The elevation for leading wall (3) with block
The elevation of husky bank (4) is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621047068.6U CN205999865U (en) | 2016-09-09 | 2016-09-09 | A kind of sediment trapping bank structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621047068.6U CN205999865U (en) | 2016-09-09 | 2016-09-09 | A kind of sediment trapping bank structure |
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| Publication Number | Publication Date |
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| CN205999865U true CN205999865U (en) | 2017-03-08 |
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| CN201621047068.6U Active CN205999865U (en) | 2016-09-09 | 2016-09-09 | A kind of sediment trapping bank structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400751A (en) * | 2016-09-09 | 2017-02-15 | 中国电建集团成都勘测设计研究院有限公司 | Sand blocking ridge structure and construction process thereof |
| CN109403264A (en) * | 2018-11-13 | 2019-03-01 | 北京市北运河管理处 | Rivers and canals enter the method that river mouth sewage treatment facility setting pot uses artificial bend to choke water |
-
2016
- 2016-09-09 CN CN201621047068.6U patent/CN205999865U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400751A (en) * | 2016-09-09 | 2017-02-15 | 中国电建集团成都勘测设计研究院有限公司 | Sand blocking ridge structure and construction process thereof |
| CN109403264A (en) * | 2018-11-13 | 2019-03-01 | 北京市北运河管理处 | Rivers and canals enter the method that river mouth sewage treatment facility setting pot uses artificial bend to choke water |
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