CN214657200U - Protective system for abandoned soil field of river beach in steep mountain area - Google Patents
Protective system for abandoned soil field of river beach in steep mountain area Download PDFInfo
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- CN214657200U CN214657200U CN202022532210.9U CN202022532210U CN214657200U CN 214657200 U CN214657200 U CN 214657200U CN 202022532210 U CN202022532210 U CN 202022532210U CN 214657200 U CN214657200 U CN 214657200U
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- 239000002689 soil Substances 0.000 title claims abstract description 52
- 230000001681 protective Effects 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 18
- 230000005484 gravity Effects 0.000 claims abstract description 13
- 239000002893 slag Substances 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 239000004567 concrete Substances 0.000 claims description 26
- 240000000218 Cannabis sativa Species 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 7
- 239000011083 cement mortar Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 239000010426 asphalt Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 229910052570 clay Inorganic materials 0.000 claims description 3
- 230000002633 protecting Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 14
- 239000002131 composite material Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 239000003864 humus Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000036536 Cave Effects 0.000 description 1
- 240000001008 Dimocarpus longan Species 0.000 description 1
- 235000000235 Euphoria longan Nutrition 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model relates to a protective system for a waste soil field of a riverbeach in a steep mountain area. The protective system for the abandoned river soil yard of the riverbeach in the steep mountainous area comprises an upstream retaining wall, a downstream retaining wall and a drainage system; the upstream retaining wall and the downstream retaining wall both adopt composite retaining walls, the dam bottom is a gravity retaining wall, and the wall back is divided into multi-stage slag heaping; the drainage system comprises a water intercepting ditch arranged along one side, close to the mountain, of the spoil, a flood discharging ditch arranged along the other side, close to the mountain, of the spoil, a blind ditch arranged at the bottom of the spoil and arranged along the original ditch, and a flood discharging tunnel arranged in the mountain on one side and used for guiding upstream incoming water to a natural river channel. The protection system for the abandoned soil yard of the river beach in the steep mountainous area can effectively improve the stability of the abandoned soil yard and is not easy to generate debris flow.
Description
Technical Field
The utility model belongs to the technical field of the sediment processing technique is abandoned in the engineering and specifically relates to a protective system of soil yard is abandoned on steep mountain area beach.
Background
The mountain area highway geological environment is complicated, and the topography is undulant greatly, no matter what kind of construction scheme takes can form a large amount of abandonment, and mountain height slope along the line is steep, and the place that is fit for abandoning soil is less, and the abandonment soil yard is not located the ditch that the water yield is great, is located the slope body, is exactly the river beach that the water yield is less still. The unreasonable stacking of the waste soil and the waste stone generated in the process of construction damages the original environment, and simultaneously, various secondary disasters such as debris flow and the like are easily caused by unreasonable arrangement of a waste soil yard.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a protection system for a waste disposal site on a beach in a steep mountain area.
The protective system for the abandoned river soil yard of the riverbeach in the steep mountainous area comprises an upstream retaining wall, a downstream retaining wall and a drainage system;
the upper retaining wall is arranged at the front edge of the spoil area, the dam bottom of the upper retaining wall is a gravity retaining wall, the wall back is divided into multiple stages of slag heaps, the first stage slope comprises a cement mortar cushion layer, a geomembrane, a sand layer and a gravel layer which are arranged from bottom to top respectively, prefabricated concrete column blocks are adopted to protect the slope, each stage of slope on the upper portion is protected by concrete lattice beam grass planting, and a berm is arranged between each stage of slope;
the downstream retaining wall is arranged at the rear edge of the spoil area, the dam bottom of the downstream retaining wall is a gravity retaining wall, the wall back is divided into multiple stages of slag heaps, the first stage slope adopts dry masonry slope protection, each stage of slope on the upper part adopts concrete frame beam grass planting slope protection, and a berm is arranged between each stage of slope;
the drainage system comprises a water intercepting ditch arranged along one side, close to the mountain, of the spoil, a flood discharging ditch arranged along the other side, close to the mountain, of the spoil, a blind ditch arranged at the bottom of the spoil and arranged along the original ditch, and a flood discharging tunnel arranged in the mountain on one side and used for guiding upstream incoming water to a natural river channel.
Optionally, the blind ditch comprises a concrete foundation, a round pipe culvert arranged on the concrete foundation, and a rubble blind ditch which is formed by laying rubbles and arranged on two sides of the concrete foundation.
Optionally, the bottom of the rubble blind ditch is located below the original ditch bottom, and the bottom of the inner hole of the circular pipe culvert and the original ditch bottom are located on the same horizontal plane.
Optionally, the water inlet of the flood discharge tunnel is designed to be a pressureless tunnel, and the water outlet of the flood discharge tunnel is provided with an underflow stilling pool.
Optionally, the intercepting ditch and the flood discharge ditch are both provided with dividing seams and are caulked by asphalt boards.
Optionally, the protection system for the abandoned soil yard at the river beach in the steep mountainous area further comprises a ditch bottom scarfing clay layer covering the top surface of the abandoned soil yard slope.
The utility model relates to a soil abandonment field protection system of abrupt mountain area river beach adopts the combined type barricade to set up catch basin, flood discharge ditch in the earth's surface, set up the french drain in the basement, set up three-dimensional drainage systems such as flood discharge tunnel in one side massif, and adopt reasonable domatic protection, form a soil abandonment field and synthesize the protection system, can effectively improve the stability in soil abandonment field, be difficult for producing the mud-rock flow.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a plan view of an exemplary embodiment of a protection system for a waste soil yard on a beach in a steep mountainous area;
FIG. 2 is a longitudinal cross-sectional layout view of the upstream retaining wall of FIG. 1;
FIG. 3 is a schematic view of the concrete lattice beam grass planting revetment of FIG. 1;
FIG. 4 is a schematic structural view of the blind trench of FIG. 1;
fig. 5 is a longitudinal sectional view of the entrance and exit of the flood discharge tunnel of fig. 1.
Description of reference numerals: 1. an upstream retaining wall; 2. a downstream retaining wall; 3. a gravity retaining wall; 4. a first level slope; 5. a horse way; 6. concrete frame lattice; 7. two beams; 8. intercepting a ditch; 9. arranging flood ditches; 10. blind ditches; 11. a flood discharge tunnel; 12. a concrete foundation; 13. a round pipe culvert; 14. a slabstone blind ditch; 15. and an underflow stilling pool.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Overview of the engineering: the civil engineering LJ20 from the Khatsuki ditch (Ganchuan) to the Yangyang highway subgrade of the Sichuan province is positioned in the county of Pingwu county of Yangyang city in the county of Country and Longan town with the total length of the line of 7.705 kilometers, wherein the bridge-tunnel ratio reaches 100 percent, and the planned abandon is about 190 ten thousand meters3Area of about 8 ten thousand m2。
According to the proportion of engineering bridges and tunnels, the amount of abandoned land and the local topography, a dry river beach at the junction of two rivers shown in figure 1 is selected as a site of the abandoned land. And combining the actual topographic and geological conditions of the river beach, and adopting a full-section stacking scheme for the abandoned soil field.
The protection system of the abandoned land on the beaches in the steep mountainous areas shown in fig. 1 to 5 is the protection system of the abandoned land. The protective system for the abandoned river soil yard on the riverbeach in the steep mountainous area comprises an upstream retaining wall 1, a downstream retaining wall 2 and a drainage system.
The upstream retaining wall 1 sets up in the leading edge of abandonment soil field, as shown in fig. 2, the upstream retaining wall adopts combined type barricade, and the dam foundation is gravity type barricade 3, and the wall back of the body divides multistage heap sediment, and first grade side slope 4 includes cement mortar bed course, geomembrane, sand bed, the gravel layer of arranging from down respectively to adopt prefabricated concrete column piece bank protection, the every grade of side slope in upper portion adopts concrete frame lattice beam grass planting bank protection, sets up berm 5 between every grade of slope.
In this embodiment, the gravity type barricade height of upstream retaining wall is 6m, and the top is wide 1.5m, and the slope wave ratio of meeting water is 1: 0.35, the wall back is pressed according to the weight ratio of 1: the 3-wave ratio is divided into multiple stages of slag heaping, the height of the first stage of side slope is 5m, the height of each upper stage of side slope is 8m, and the width of the berm is 4 m. The thickness of the cement mortar cushion layer is 10cm, and the geomembrane model number is 500g/m2The thickness of the sand layer is 5cm, and the thickness of the sand gravel layer is 5 cm; prefabricated building blockThe concrete column blocks are prefabricated hexagonal blocks with the thickness of 10 cm. It should be understood that other suitable size parameters may be used for the upstream retaining wall depending on the application.
The low reaches retaining wall sets up in the trailing edge of abandonment soil yard, the low reaches retaining wall adopts combined type barricade, and its dam foundation is gravity type barricade, and the wall back of the body divides multistage heap sediment, and first order side slope adopts the dry masonry bank protection, and every grade of side slope on upper portion adopts concrete frame lattice beam grass planting bank protection, sets up the berm between every grade of slope.
In this embodiment, the gravity type barricade height 7.5m of low reaches retaining wall, the wide 2m in top, the wall back of the body is according to 1: the 3-wave ratio slag piling is divided into multiple stages, the height of a first stage slope is 5m, the height of each upper stage slope is 8m, the width of a berm is 4m, and the thickness of a dry masonry revetment is 30 cm. It should be understood that the downstream retaining wall may be selected from other suitable dimensional parameters depending on the application.
Referring to fig. 3, in the present embodiment, the concrete frame 6 is a C25 concrete frame, the size is 30 × 30cm, a group of two beams 7 are arranged every 13.03m along the axial direction of the dam, a gap is formed between the two beams 7, and asphalt wood plates are used for filling the gap. It will be appreciated that other suitable dimensional parameters may be used for the concrete lattice beam.
Returning now to fig. 1, the drainage system includes an intercepting drain 8 provided along one side of the spoil against the mountain, a drainage ditch 9 provided along the other side of the spoil against the mountain, a blind ditch 10 provided at the bottom of the spoil and arranged along the original ditch, and a flood discharge tunnel 11 provided in the mountain on one side for guiding the upstream incoming water to the natural river.
The intercepting ditch and the flood discharge ditch are mainly used for intercepting ground runoff flowing to the spoil area, protecting the spoil area from being washed by water flow and guiding the water flow to a natural river channel or ditch outside the spoil area. In the embodiment, the intercepting ditches and the flood discharge ditches are divided at intervals of 10m, the width of the seams is 2cm, and the seams are embedded by asphalt boards. And the other sizes of the intercepting ditches and the flood discharge ditches are calculated according to relevant specifications of water and soil conservation, a computation manual of torrential rain and flood in Sichuan province and the local former rainfall condition, and the designed flood standard is calculated according to the 30-year-once-rainstorm condition.
Referring now to fig. 4, the blind ditch for draining the flowing water in the river ditch in the early stage and permeating water in the waste soil yard in the later stage comprises a concrete foundation 12, a round pipe culvert 13 arranged on the concrete foundation 12, and a stone blind ditch 14 which is formed by laying stones and is arranged at two sides of the concrete foundation 12. Specifically, the bottom of the inner hole of the circular pipe culvert and the bottom of the original ditch are located on the same horizontal plane, and the bottom of the slabstone blind ditch is located below 30mm of the bottom of the original ditch.
In the embodiment, the round pipe culvert is a reinforced concrete round pipe culvert with the diameter phi of 150 mm; the bottom of the slabstone blind ditch is lower than the original ditch bottom by 30mm, the height of the slabstone blind ditch is 120mm, the top width is 100mm, and the slope ratio of the outer side surface is 1: 0.5. it should be understood that the blind trench may also employ other suitable dimensional parameters.
In this embodiment, the flood standard of the flood discharge tunnel design is 100 years, and the peak flow is designed to be 153 m/s. The total length of the tunnel is 366.53m, the design longitudinal gradient is 0.027, the cross section of the shape of an urban cave is lined with reinforced concrete. The design flood standard of the energy dissipation facility is 30 years, and the design peak flow is 108 m/s. Referring to fig. 5, the tunnel water inlet is designed according to a non-pressure tunnel, the bottom width of the tunnel inlet section is 7m, the height of the tunnel inlet section is 7m, the bottom width of the tunnel body section is 7m, the height of the tunnel inlet section is 7m, the design flow is 153m/s, the maximum water depth before culvert is 5m, and the roughness coefficient of the tunnel lining is 0.025. The tunnel outlet enters the river after the energy dissipation of the underflow stilling pool 15.
In this embodiment, the protection system for the abandoned soil yard on the river beach in the steep mountainous area further comprises a trench bottom scarfing clay layer covering the top surface of the abandoned soil yard slope so as to seal the top surface of the abandoned soil yard slope. Therefore, the upper sealing and the lower discharging of the waste soil field are realized.
The construction method of the protective system for the abandoned river soil yard on the river beach in the steep mountainous area comprises the following steps:
s1, removing humus soil and ploughing and planting soil on the original ground surface, stacking the humus soil and the ploughing and planting soil on one side of the waste soil field for protection, and using the humus soil and the ploughing and replanting soil in the later stage greening engineering and the waste soil field for greening again;
s2, leveling the waste soil yard substrate, and constructing a blind ditch on the waste soil yard substrate;
s3, constructing an upstream retaining wall and a downstream retaining wall;
s4, constructing a flood discharge tunnel, wherein the flood discharge tunnel is constructed before the rainy season comes;
s5, waste residues in the waste soil yard are filled in layers and compacted;
s6, constructing a catch basin and a flood discharge ditch;
s7, replanting and re-greening the abandoned land, and after the abandoned land is formed, arranging and greening the slope, the platform, the top surface and other positions of the abandoned land by matching grass, irrigation and the like so as to restore the ecological environment as soon as possible.
The utility model provides a soil abandonment field protection system of steep mountain area river beach adopts combined type barricade to set up intercepting ditch, flood discharge ditch in the earth's surface, set up the french drain in the basement, set up three-dimensional drainage systems such as flood discharge tunnel in one side massif, and adopt reasonable domatic protection, form a soil abandonment field and synthesize protection system, can effectively improve the stability in soil abandonment field, be difficult for producing the mud-rock flow.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. The utility model provides a protective system for abandoned soil field of river beach in steep mountain area which characterized in that: the system comprises an upstream retaining wall, a downstream retaining wall and a drainage system;
the upper retaining wall is arranged at the front edge of the spoil area, the dam bottom of the upper retaining wall is a gravity retaining wall, the wall back is divided into multiple stages of slag heaps, the first stage slope comprises a cement mortar cushion layer, a geomembrane, a sand layer and a gravel layer which are arranged from bottom to top respectively, prefabricated concrete column blocks are adopted to protect the slope, each stage of slope on the upper portion is protected by concrete lattice beam grass planting, and a berm is arranged between each stage of slope;
the downstream retaining wall is arranged at the rear edge of the spoil area, the dam bottom of the downstream retaining wall is a gravity retaining wall, the wall back is divided into multiple stages of slag heaps, the first stage slope adopts dry masonry slope protection, each stage of slope on the upper part adopts concrete frame beam grass planting slope protection, and a berm is arranged between each stage of slope;
the drainage system comprises a water intercepting ditch arranged along one side, close to the mountain, of the spoil, a flood discharging ditch arranged along the other side, close to the mountain, of the spoil, a blind ditch arranged at the bottom of the spoil and arranged along the original ditch, and a flood discharging tunnel arranged in the mountain on one side and used for guiding upstream incoming water to a natural river channel.
2. The protection system for the abandoned river soil yard on the beaches of the steep mountainous area as claimed in claim 1, wherein: the blind ditch comprises a concrete foundation, a round pipe culvert arranged on the concrete foundation and a stone blind ditch which is arranged on two sides of the concrete foundation and is formed by laying stones.
3. The protection system for the abandoned river soil yard on the beaches of the steep mountainous area as claimed in claim 2, wherein: the bottom of the slabstone blind ditch is positioned below the bottom of the original ditch, and the bottom of the inner hole of the circular pipe culvert and the bottom of the original ditch are positioned on the same horizontal plane.
4. The protection system for the abandoned river soil yard on the beaches of the steep mountainous area as claimed in claim 1, wherein: the water inlet of the flood discharge tunnel adopts a non-pressure tunnel design, and the water outlet of the flood discharge tunnel is provided with an underflow stilling pool.
5. The protection system for the abandoned river soil yard on the beaches of the steep mountainous area as claimed in claim 1, wherein: the intercepting ditch and the flood discharge ditch are both provided with dividing seams and are caulked by asphalt boards.
6. The protection system for the abandoned river soil yard on the beaches of the steep mountainous area as claimed in claim 1, wherein: and the soil abandoning field slope comprises a trench bottom clearing clay layer covering the top surface of the soil abandoning field slope.
7. The protection system for the abandoned river dump on the beaches of the steep mountainous area as claimed in any one of claims 1 to 6, wherein: the slope wave ratio of the upstream retaining wall to the water of the gravity retaining wall is 1: 0.35, the wall back is pressed according to the weight ratio of 1: 3, carrying out multistage slag stacking according to a wave ratio; the wall back of the downstream retaining wall is as follows: the 3-wave ratio is divided into multi-stage slag heaping.
8. The protection system for the abandoned river land on the beaches in the steep mountainous area as claimed in claim 7, wherein: the gravity retaining wall of the upstream retaining wall is 6m high, the top width is 1.5m, the first stage slope is 5m high, each stage slope at the upper part is 8m high, and the berm is 4m wide; the gravity retaining wall height of the downstream retaining wall is 7.5 m.
9. The protection system for the abandoned river soil yard on the beaches of the steep mountainous area as claimed in claim 8, wherein: the thickness of the cement mortar cushion layer is 10cm, and the geomembrane model number is 500g/m2The thickness of the sand layer is 5cm, and the thickness of the sand gravel layer is 5 cm; the prefabricated concrete column blocks are prefabricated hexagonal blocks and are 10cm thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022532210.9U CN214657200U (en) | 2020-11-05 | 2020-11-05 | Protective system for abandoned soil field of river beach in steep mountain area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022532210.9U CN214657200U (en) | 2020-11-05 | 2020-11-05 | Protective system for abandoned soil field of river beach in steep mountain area |
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| Publication Number | Publication Date |
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| CN214657200U true CN214657200U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022532210.9U Active CN214657200U (en) | 2020-11-05 | 2020-11-05 | Protective system for abandoned soil field of river beach in steep mountain area |
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| Country | Link |
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| CN (1) | CN214657200U (en) |
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- 2020-11-05 CN CN202022532210.9U patent/CN214657200U/en active Active
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