CN215252044U - Multi-stage communicated water passing roadbed crossing reservoir bank seasonal debris flow branch ditches - Google Patents
Multi-stage communicated water passing roadbed crossing reservoir bank seasonal debris flow branch ditches Download PDFInfo
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- CN215252044U CN215252044U CN202121223085.1U CN202121223085U CN215252044U CN 215252044 U CN215252044 U CN 215252044U CN 202121223085 U CN202121223085 U CN 202121223085U CN 215252044 U CN215252044 U CN 215252044U
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Abstract
The utility model provides a stride multistage intercommunication water road bed of reservoir bank seasonal mud-rock flow branch ditch, water road bed arranges between branch ditch and reservoir in crossing the water road bed, it sets up one deck reinforced concrete pipe culvert in the stone sediment material filling layer from flood control restriction water level elevation to every 6 ~ 10m elevation between the normal water storage level elevation including the bottom riprap layer that is located the bottom, be located the stone sediment material filling layer on the bottom riprap layer upper portion to cross the water road bed, reinforced concrete pipe culvert is used for intercommunication branch ditch and reservoir, and the top of connecting branch ditch and reservoir water road bed sets up mud-rock flow drainage groove. The utility model discloses a set up and cross the problem that how to stride across debris flow branch ditch is striden in the water road bed and solve, link up the water of water road bed both sides simultaneously, avoid the poor too big influence road bed of both sides flood peak.
Description
Technical Field
The utility model relates to a stride multistage intercommunication water roadbed of reservoir bank's seasonal debris flow lateral ditches.
Background
The high-grade highway crosses the debris flow ditch, for the better condition of geological conditions of both banks, generally adopt the mode of setting up the bridge to avoid the debris flow, and the pier should avoid the main ditch (or adopt the arch bridge scheme once to cross the ditch), and take corresponding bridge safeguard measure. The conventional scheme of setting up the bridge can enough avoid the debris flow to destroy the highway, can satisfy the flood control standard again, ensures the normal operating of highway.
However, the reservoir bank low-grade highway crosses the debris flow branch trench, the geological conditions of the two banks are poor, the reservoir stores water, and a bridge cannot be arranged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a multistage intercommunication water road bed of crossing reservoir bank's seasonal debris flow branch ditch is provided, through setting up the water road bed and cross the problem that how to stride across debris flow branch ditch in the ditch solution, link up the water of water road bed both sides simultaneously, avoid the differential too big influence road bed of both sides flood peak.
The utility model provides a stride multistage intercommunication water road bed of reservoir bank seasonal debris flow branch ditch, water road bed arranges between branch ditch and reservoir, water road bed sets up one deck reinforced concrete pipe culvert in the stone sediment material filling layer every 6 ~ 10m elevation from flood control restriction water level elevation to between the normal water storage level elevation including the bottom riprap layer that is located the bottom, the stone sediment material filling layer that is located bottom riprap layer upper portion, reinforced concrete pipe culvert is used for intercommunication branch ditch and reservoir, and the top of connecting branch ditch and reservoir water road bed sets up debris flow drainage groove.
Furthermore, the diameter of the reinforced concrete circular pipe culvert is 1-1.5 m, and the distance is 10 m.
Furthermore, grading side slopes are arranged on two sides of the water passing roadbed, and the slope ratio is 1: 3.0-1: 3.50.
Furthermore, a 3m wide street is arranged between every two levels of side slopes.
Furthermore, a stone-throwing foot protector is arranged at the foot of the side slope.
Further, concrete precast block protection slopes are laid on side slopes on two sides of the water passing roadbed.
Further, the bottom riprap layer is made of rocks with the block diameter of 20-100 cm and the thickness of not less than 5 m.
The utility model discloses following beneficial effect has:
(1) the utility model solves the problems that the reservoir bank low-grade highway crosses the debris flow branch trench, the geological conditions of the two banks are poor, the reservoir stores water and the bridge cannot be arranged by arranging the water passing roadbed;
(2) the utility model gets through the water bodies on the two sides of the water passing roadbed, avoids the large water head difference on the two sides of the water passing roadbed, and improves the stability of the water passing roadbed;
(3) the utility model arranges the pipe culvert in different levels, avoids the debris flow blockage to cause the failure of all the water passing channels, and enhances the operation reliability of the water passing roadbed;
(4) the utility model discloses a set up debris flow drainage groove, solved the interior side debris flow siltation of water road bed and filled the back, the debris flow will pass through from the water road bed to destroy the problem of water road bed.
Drawings
FIG. 1 is a top view of the multi-stage connected water-passing roadbed of the seasonal debris flow branch trench across the bank of the reservoir;
fig. 2 is a transverse cross-sectional view of the present invention;
fig. 3 is a longitudinal sectional view of the present invention.
In the figure: the method comprises the following steps of 1-highway route, 2-water roadbed, 3-debris flow drainage and guide groove, 4-original ground line, 5-bottom riprap layer, 6-riprap foot protection, 7-reinforced concrete circular pipe culvert, 8-concrete precast block slope protection, 9-branch ditch, 10-reservoir and 11-debris material filling layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1-3, the utility model discloses one of them embodiment of multistage intercommunication water roadbed of reservoir bank seasonal debris flow branch ditch is crossed, the branch ditch 9 and the reservoir 10 are connected to the both sides of water roadbed 2, should cross water roadbed 2 including the bottom riprap layer 5 that is located the bottom, the stone sediment material filling layer 11 that is located bottom riprap layer 5 upper portion, from between flood control restriction water level elevation to normal water storage level elevation, set up one deck reinforced concrete pipe culvert 7 in stone sediment material filling layer 11 every 6 ~ 10m elevation, reinforced concrete pipe culvert 7 is used for communicating branch ditch 9 and reservoir 10, and reinforced concrete pipe culvert 7's diameter is 1 ~ 1.5 m.
Fill the hard lump stone that thickness is not less than 5m in 2 bottoms of water roadbed, constitute bottom riprap layer 5, the better stone sediment material of water permeability is filled as far as possible to the bottom riprap layer more than 5, forms stone sediment material filled layer 11. The top elevation of the water passing roadbed 2 exceeds the normal water storage level of the reservoir by not less than 3m, and the top width of the water passing roadbed is determined by calculation according to seepage and slope stability and is generally 1.5-2 times of the height of the roadbed. Two sides of the water passing roadbed 2 are provided with graded side slopes with a slope ratio of 1: 3.0-1: 3.50, a 3m wide berm is arranged between every two grades of side slopes, and the slope toe is provided with a riprap toe guard 6.
The top of the waterway foundation 2 is provided with a debris flow drainage groove 3, the longitudinal slope of the debris flow drainage groove 3 is 3% -5%, a shallow dish-shaped section is adopted, a reinforced concrete lining with the thickness of 1m is adopted, and the section area of the drainage groove is required to meet the debris flow capacity calculation. Concrete precast block revetments 8 are paved on the side slopes on the two sides of the water passing roadbed.
The water passing roadbed 2 is a block pavement, warning signs for forbidding passing in rainy days are respectively arranged at two ends of the block pavement, management is strengthened, and traffic is interrupted at any time when necessary.
The utility model discloses a work progress as follows:
(1) and (3) selecting flood season construction, wherein the water level of the reservoir 10 is the flood control limit water level (shown in figure 2). First, the stone is ripened to form a bottom riprap layer 5 and a riprap toe guard 6. The stone material for stone throwing is selected from rocks which have high strength, low weathering degree and are not softened after being soaked in water, the block diameter is 20-100 cm, and the thickness is not less than 5 m.
(2) Then, the ballast filling layer 11 is filled. And (4) filling in layers, wherein the thickness of each layer is 40cm, mechanical rolling is carried out by adopting a vibration roller, and the compactness meets the design specification of the roadbed. And graded side slopes are arranged on two sides of the roadbed, the slope ratio is 1: 3.0-1: 3.50, and a 3 m-wide berm is arranged between every two levels of side slopes.
(3) When the first layer of circular pipe culvert elevation is filled, a layer of reinforced concrete circular pipe culvert 7 is laid, the diameter of the pipe culvert is 1-1.5 m, and the distance between the circular pipe culverts is 10 m. For each reinforced concrete circular pipe culvert 7, a settlement joint is arranged every 5m in length, and asphalt floc is filled.
(4) And (4) after the first layer of reinforced concrete circular pipe culvert 7 is paved, continuously filling the stone ballast material filling layer 11, and repeating the steps (2) to (3) until the stone ballast material filling layer 11 is filled to the design elevation of the water roadbed 2.
(5) And excavating a debris flow drainage groove 3 at the top of the water passing roadbed 2, and lining by adopting reinforced concrete.
(6) Concrete precast blocks are paved on the side slopes on the two sides of the water passing roadbed to form a slope protection 8, and the slope protection scheme adopts permeable geotextile, 15cm graded broken stone cushion layer and 30cm thick concrete precast blocks.
(7) After the steps are completed, the highway route 1 passes through the ditch from the top of the water passing roadbed 2 and is vertically intersected with the debris flow drainage groove 3. Under conventional weather, the automobile can normally pass, under the rainstorm working condition, the debris flow drainage groove 3 is likely to pass through water, at the moment, management is strengthened, traffic is interrupted, and early warning is well given.
The above description is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a cross multistage intercommunication water roadbed of reservoir bank seasonal debris flow branch ditch which characterized in that: cross the water road bed and arrange between ditch and reservoir, cross the water road bed including the bottom riprap layer that is located the bottommost, be located the stone sediment material filling layer on bottom riprap layer, set up one deck reinforced concrete pipe culvert in stone sediment material filling layer every 6 ~ 10m elevations between from flood control restriction water level elevation to normal water storage level elevation, reinforced concrete pipe culvert is used for intercommunication ditch and reservoir, and the top of connecting the ditch and reservoir and crossing the water road bed sets up mud-rock flow drainage groove.
2. The multi-stage connected waterway foundation of the cross-bank riparian mudslide branch trench of claim 1, wherein: the diameter of the reinforced concrete circular pipe culvert is 1-1.5 m, and the distance is 10 m.
3. The multi-stage connected waterway foundation of the cross-bank riparian mudslide branch trench of claim 1, wherein: and graded side slopes are arranged on two sides of the water passing roadbed, and the slope ratio is 1: 3.0-1: 3.50.
4. The multi-stage connected waterway foundation of the cross-bank riparian mudslide branch trench of claim 3, wherein: and a 3m wide street is arranged between every two stages of side slopes.
5. The multi-stage connected waterway foundation of the cross-bank riparian mudslide branch trench of claim 3, wherein: the slope foot of the side slope is provided with a riprap foot protector.
6. The multi-stage connected waterway foundation of the cross-bank riparian mudslide branch trench of claim 3, wherein: concrete prefabricated section bank protection is laid to the both sides side slope of water roadbed.
7. The multi-stage connected waterway foundation of the cross-bank riparian mudslide branch trench of claim 1, wherein: the bottom riprap layer is made of rocks with the block diameter of 20-100 cm and the thickness of not less than 5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121223085.1U CN215252044U (en) | 2021-06-02 | 2021-06-02 | Multi-stage communicated water passing roadbed crossing reservoir bank seasonal debris flow branch ditches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121223085.1U CN215252044U (en) | 2021-06-02 | 2021-06-02 | Multi-stage communicated water passing roadbed crossing reservoir bank seasonal debris flow branch ditches |
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| Publication Number | Publication Date |
|---|---|
| CN215252044U true CN215252044U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121223085.1U Active CN215252044U (en) | 2021-06-02 | 2021-06-02 | Multi-stage communicated water passing roadbed crossing reservoir bank seasonal debris flow branch ditches |
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| Country | Link |
|---|---|
| CN (1) | CN215252044U (en) |
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2021
- 2021-06-02 CN CN202121223085.1U patent/CN215252044U/en active Active
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