CN205557559U - Sediment trapping bank - Google Patents
Sediment trapping bank Download PDFInfo
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- CN205557559U CN205557559U CN201620359030.6U CN201620359030U CN205557559U CN 205557559 U CN205557559 U CN 205557559U CN 201620359030 U CN201620359030 U CN 201620359030U CN 205557559 U CN205557559 U CN 205557559U
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- reinforced concrete
- diaphragm wall
- sediment trapping
- concrete diaphragm
- trapping bank
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Abstract
The utility model discloses a sediment trapping bank has solved inconvenient, the low scheduling problem of quality of construction that adopts the gravity type barricade to exist among the prior art. This sediment trapping bank includes: the cofferdam body (1) and reinforced concrete diaphragm wall (2), the cofferdam body (1) centers on reinforced concrete diaphragm wall (2), reinforced concrete diaphragm wall (2) top with the top of the cofferdam body (1) maintains an equal level, the bottom downwardly extending of reinforced concrete diaphragm wall (2) is to the basement rock in. The utility model discloses not only satisfy sediment trapping bank and to the requirement of structure, overcome the technical problem that prior art existed, do and guarantee safety, quality and investment.
Description
Technical field
This utility model relates to underwater high-speed propulsion field, specifically, relating to a kind of sediment trapping bank.
Background technology
River channel hydroelectric resource development station Factory Building water inlet sediment trapping bank is often located at inlet channel upstream, and in order to reduce foundation ditch area, upstream cofferdam is typically located at the downstream of sediment trapping bank, and therefore, sediment trapping bank is just positioned at outside foundation ditch, and causing the construction of sediment trapping bank is underwater construction.At present, sediment trapping bank typically uses concrete Gravity Retaining Wall structure, as it is shown in figure 1, it is primarily present following defect:
(1) Gravity Retaining Wall basis is under water, it is difficult to control basis elevation and flatness.
(2) template is difficult to erect and splice under water, and safety and quality are all difficult to ensure that；And template end opening cannot ensure to be close to base surface, easily cause concrete during pouring concrete and expose and waste.
(3) concrete underwater casting is easily caused isolation, and substantially cannot vibrate, and concrete placings quality cannot ensure.
(4) template cannot remove and reclaim, and increases construction cost.
Utility model content
The purpose of this utility model is to overcome drawbacks described above, it is provided that a kind of simple in construction, easy construction, safety, sediment trapping bank that pouring quality is high.
To achieve these goals, this utility model is by the following technical solutions:
A kind of sediment trapping bank, including: cofferdam body and reinforced concrete diaphragm wall, described cofferdam body maintains an equal level around described reinforced concrete diaphragm wall, described reinforced concrete diaphragm wall top with the top of described cofferdam body, and the bottom of described reinforced concrete diaphragm wall extends downward in basement rock.
Further, described reinforced concrete diaphragm wall is positioned at the middle part of described cofferdam body, and the two is coaxially disposed.
Further, the cross section of described cofferdam body is trapezoidal.
Further, the cross section of described reinforced concrete diaphragm wall is rectangle.
Further, the bottom of described reinforced concrete diaphragm wall extends downward the length in basement rock between 0.5-1.5m.
Compared with prior art, this utility model has the advantages that
(1) this utility model uses underwater continuous wall to replace Gravity Retaining Wall of the prior art, the bottom of reinforced concrete diaphragm wall is deeply to based on interior, it is to avoid foundation plane cannot be cleaned out under water, it is to avoid be combined bad problem bottom concrete gravity type with foundation plane；Reinforced concrete diaphragm wall erects without carrying out template under water, it is to avoid in prior art under water template to erect potential safety hazard big, problem that precision is difficult to ensure that.
(2) this utility model is used, it is not necessary to carrying out prevention of mass concrete under water and pour, thus effectively overcome in prior art, prevention of mass concrete pours and cannot vibrate under water, it is difficult to self-flowing dense, and pouring quality cannot ensure.
(3) this utility model not only meets the requirement to structure of the sediment trapping bank, overcomes the technical problem existing for prior art, also can ensure safety, quality and investment.
Accompanying drawing explanation
Fig. 1 is the sectional schematic diagram of prior art.
Fig. 2 is the sectional schematic diagram of sediment trapping bank in this utility model-embodiment 1.
Fig. 3 is construction schematic diagram one of the present utility model.
Fig. 4 is construction schematic diagram two of the present utility model.
Fig. 5 is construction schematic diagram three of the present utility model.
Fig. 6 is the sectional schematic diagram of this utility model-embodiment 2.
In accompanying drawing, the title corresponding to reference is as follows: 1-cofferdam body, 2-reinforced concrete diaphragm wall, 3-basement rock, 4-concrete Gravity Retaining Wall, 5-foundation plane, 6-operation platform, 7-groove.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, and embodiment of the present utility model includes but not limited to the following example.
Embodiment 1
As shown in Figure 2-5, present embodiments provide a kind of sediment trapping bank, this sediment trapping bank uses diaphragm wall structure to replace the Gravity Retaining Wall used in prior art, compared with Gravity Retaining Wall, it is without template erection, without pouring prevention of mass concrete, clearing up without lower foundation plane, not only easy construction, construction volume are little, and quality is good, low cost.
In the present embodiment, sediment trapping bank mainly includes cofferdam body and reinforced concrete diaphragm wall two parts, wherein cofferdam body is that the sand gravel material using small particle fills, wherein, small particle is meant less than the sand gravel material of 30cm, and certainly, those skilled in the art can also select other material to carry out filling of cofferdam body, such as: clay, sandy gravel etc..The cross sectional shape of cofferdam body is not particularly limited, and it can be trapezoidal, rectangle, square etc., and in the present embodiment, the cross sectional shape of cofferdam body is trapezoidal, and the cross sectional shape of cofferdam body represented in illustrations should not limit the protection domain of the application.
Reinforced concrete diaphragm wall is positioned at cofferdam body; it may be located at its medium position of the deviation in the body of cofferdam; the middle part of cofferdam body can also be positioned at; in the present embodiment; preferably reinforced concrete diaphragm wall is coaxially disposed (axis is identical) with cofferdam body; the cross sectional shape of reinforced concrete diaphragm wall is not particularly limited; it can be rectangle, square, trapezoidal etc.; in the present embodiment; the cross sectional shape of reinforced concrete diaphragm wall is preferably rectangle, and the cross sectional shape of reinforced concrete diaphragm wall represented in illustrations should not limit the protection domain of the application.
In the present embodiment, reinforced concrete diaphragm wall top maintains an equal level with the top of described cofferdam body, and the bottom of reinforced concrete diaphragm wall extends downward in basement rock.Reinforced concrete diaphragm wall extends to the body of wall length in basement rock between 0.5-1.5m, it is generally preferable to about 1m.The width of reinforced concrete diaphragm wall is not particularly limited, it can be 0.5m, 1m, 1.5m, 2m etc., those skilled in the art can select different in width according to actual operating mode, accordingly, reinforced concrete diaphragm wall may be designed in gradual change width, such as along the width of its axial direction: reinforced concrete diaphragm wall upper width 0.5m, middle part width 0.8m, lower width 1m；Upper width 0.8m, middle part width 1m, lower width 1m etc., those skilled in the art can select according to actual operating mode.
The construction method of the sediment trapping bank that the present embodiment is provided is as follows:
One, the step of filling construction platform
As shown in Figure 3, when filling construction platform, carry out filling (when reinforced concrete diaphragm wall is not coaxially disposed with cofferdam body with sediment trapping bank axis for axis, then can be selected for other benchmark to fill), operation platform exceeds construction time water level elevation, what filling construction platform was used fills the material sand gravel material for small particle, and those skilled in the art can also select other material to fill.The purpose of filling construction platform is to create the execution conditions of reinforced concrete diaphragm wall, and the shape of the operation platform filled is not particularly limited.
Two, on operation platform, carry out the step of boring grooving operation
As shown in Figure 4, operation platform top down holing, grooving of holing, groove width 0.5-1.5m, preferably about 1m, groove runs through operation platform, and bottom land extends in basement rock, development length 0.5-1.5m, preferably about 1m.Those skilled in the art can select different groove width, groove depth according to actual working condition requirement.
Three, in groove, carry out the step of construction of diaphragm wall；
As it is shown in figure 5, in institute's grooving descending reinforcing cage, pour concrete, thus form reinforced concrete diaphragm wall, continuous wall crest level is identical with original design (design height of sediment trapping bank).Wherein, when pouring concrete, use tremie method to pour, i.e. build up a unit groove section with tremie method underwater concreting with tremie method, so carrying out piecemeal, build up one continuous print armored concrete wall, be characterized in: Construction Vibration is little, wall stiffness is big, good integrity, speed of application is fast, can save the cubic metre of earth and stone.Said method efficiently avoid prevention of mass concrete under water and pours and cannot vibrate, it is difficult to self-flowing dense, the problem that pouring quality cannot ensure.
Four, excavate and unnecessary fill material, complete the step of sediment trapping bank construction.
As in figure 2 it is shown, after concrete reaches certain age, excavate more than wall top backfill material and weir body upstream and downstream unnecessary backfill material, wherein, the unnecessary material that fills includes: more than sediment trapping Kan Qiangding fills material with cofferdam body upstream and downstream.
Complete the sediment trapping bank of construction, meet the structural requirement of river channel hydroelectric resource development station Factory Building water inlet sediment trapping bank, simultaneously, it is to avoid Gravity Retaining Wall, as the defect existing for sediment trapping bank, also can ensure safety, quality and investment.
Embodiment 2
As shown in Figure 6, present embodiments providing a kind of sediment trapping bank, it includes cofferdam body and reinforced concrete diaphragm wall, the present embodiment difference from embodiment 1 is, the cross sectional shape of reinforced concrete diaphragm wall is different, and in the present embodiment, the cross sectional shape of reinforced concrete diaphragm wall is grading profile.
According to above-described embodiment, this utility model just can be realized well.What deserves to be explained is; on the premise of above-mentioned design principle; for solving same technical problem; even if some made on the basis of structure disclosed in the utility model or method are without substantial change or polishing; the essence of the technical scheme used is still as this utility model, therefore it should also be as in protection domain of the present utility model.
Claims (5)
1. a sediment trapping bank, it is characterized in that, including: cofferdam body (1) and reinforced concrete diaphragm wall (2), described cofferdam body (1) is around described reinforced concrete diaphragm wall (2), described reinforced concrete diaphragm wall (2) top maintains an equal level with the top in described cofferdam body (1), and the bottom of described reinforced concrete diaphragm wall (2) extends downward in basement rock.
Sediment trapping bank the most according to claim 1, it is characterised in that described reinforced concrete diaphragm wall (2) is positioned at the middle part in described cofferdam body (1), and the two is coaxially disposed.
Sediment trapping bank the most according to claim 2, it is characterised in that the cross section in described cofferdam body (1) is trapezoidal.
Sediment trapping bank the most according to claim 3, it is characterised in that the cross section of described reinforced concrete diaphragm wall (2) is rectangle.
5. according to the sediment trapping bank described in any one of claim 1-4, it is characterised in that the bottom of described reinforced concrete diaphragm wall (2) extends downward the length in basement rock between 0.5-1.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359030.6U CN205557559U (en) | 2016-04-26 | 2016-04-26 | Sediment trapping bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359030.6U CN205557559U (en) | 2016-04-26 | 2016-04-26 | Sediment trapping bank |
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| Publication Number | Publication Date |
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| CN205557559U true CN205557559U (en) | 2016-09-07 |
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| CN201620359030.6U Active CN205557559U (en) | 2016-04-26 | 2016-04-26 | Sediment trapping bank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735348A (en) * | 2016-04-26 | 2016-07-06 | 国电大渡河沙坪水电建设有限公司 | Sand blocking ridge and construction method thereof |
-
2016
- 2016-04-26 CN CN201620359030.6U patent/CN205557559U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735348A (en) * | 2016-04-26 | 2016-07-06 | 国电大渡河沙坪水电建设有限公司 | Sand blocking ridge and construction method thereof |
| CN105735348B (en) * | 2016-04-26 | 2017-12-08 | 国电大渡河沙坪水电建设有限公司 | A kind of construction method of river channel hydroelectric resource development station factory building water inlet sediment trapping bank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 614000 No.94 Jingyang Road, shaping Town, Ebian County, Leshan City, Sichuan Province Patentee after: Guoneng Dadu River shaping Power Generation Co.,Ltd. Address before: 614000 No.94 Jingyang Road, shaping Town, Ebian County, Leshan City, Sichuan Province Patentee before: GUODIAN DADU RIVER SHAPING HYDROPOWER CONSTRUCTION Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |