CN112921888A - Narrow-steep-channel type debris flow solid source type quick discharging device, structure and construction method - Google Patents
Narrow-steep-channel type debris flow solid source type quick discharging device, structure and construction method Download PDFInfo
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- CN112921888A CN112921888A CN202110122443.8A CN202110122443A CN112921888A CN 112921888 A CN112921888 A CN 112921888A CN 202110122443 A CN202110122443 A CN 202110122443A CN 112921888 A CN112921888 A CN 112921888A
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- debris flow
- solid source
- source type
- narrow
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- 239000007787 solid Substances 0.000 title claims abstract description 61
- 238000007599 discharging Methods 0.000 title claims abstract description 51
- 238000010276 construction Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011435 rock Substances 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 238000005299 abrasion Methods 0.000 claims description 10
- 230000003628 erosive effect Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000004575 stone Substances 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
Abstract
The invention discloses a narrow-steep-channel debris flow solid-source type quick discharge device, a structure and a construction method, which can effectively prevent the narrow-steep-channel debris flow channel bed from corroding downwards, control the bank slope instability and accelerate the debris flow discharge in a channel. The debris flow solid source type quick discharge device comprises a body, wherein the body is of a tubular structure; a plurality of locking piles are respectively arranged on two sides of the body and are used for being fixed on the ditch and bank mountain bodies; the body is provided with a plurality of water drainage holes for guiding water seeped from the ditch and bank mountains into the channel of the body to be discharged. Mud-rock flow solid source formula fast row structure, including the ditch bank massif, the surface of ditch bank massif is easy landslide region, its characterized in that: the device is characterized by further comprising a debris flow solid source type quick discharging device, wherein the debris flow solid source type quick discharging device corresponds to the lower part of the easy-to-slide area and blocks up a debris flow gully bed. The construction method comprises the following steps: determining the design flow of the debris flow; determining a channel size of the body; leveling the field; determining a layout position; constructing a debris flow solid source type quick discharging device; and (6) drilling a drain hole.
Description
Technical Field
The invention relates to the technical field of debris flow prevention and control, in particular to a narrow-steep-channel debris flow solid source type quick-discharging device, a structure and a construction method.
Background
The erosion effect is obvious for the narrow and steep channel type debris flow with V-shaped valley and large longitudinal channel bed ratio reduction on the cross section, and the debris flow source is called as a debris flow source, and is easy to cause the bank slope to be damaged and rushed into the channel. The method prevents the stability of the ditch bank source from being attenuated and controls the erosion of the debris flow ditch bed, and is the fundamental idea for treating the narrow and steep ditch type debris flow disasters.
At present, the narrow steep channel type debris flow engineering treatment lacks effective advanced technical measures, and a flexible stone blocking net is often arranged in a channel at certain intervals for blocking thick and large stones in debris flow. However, the space behind the stone blocking net is limited, so that more debris flow stones cannot be stored, and the stones blocked by the stone blocking net must be manually removed after reaching a certain amount, otherwise, the disaster of the living geological, in which the stones moving at high speed along the valley are damaged by the large-volume stones behind the stone blocking net, is easily generated. Therefore, the technology for discharging and guiding the debris flow, which is used for fixing the source and preventing the erosion of the ditch bed, is developed and has important engineering practicability.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a narrow-steep-channel type debris flow solid-source type quick discharge device, a structure and a construction method, which can effectively prevent the narrow-steep-channel type debris flow channel bed from corroding downwards, control the bank slope to be unstable and accelerate the drainage of debris flow in a channel.
The purpose of the invention is realized as follows:
a narrow steep channel type debris flow solid source type quick discharge device,
comprises a body, wherein the body is of a tubular structure;
a plurality of locking piles are respectively arranged on two sides of the body and are used for being fixed on the ditch and bank mountain bodies;
the body is provided with a plurality of water drainage holes for guiding water seeped from the ditch and bank mountains into the channel of the body to be discharged.
Preferably, the body has an elliptical cross-section with the major axis disposed horizontally.
Preferably, the base plate of the body is provided with an anti-abrasion construction.
Preferably, the locking piles are rectangular piles.
Preferably, a pvc pipe is arranged in the drain hole.
The utility model provides a structure is arranged fast to narrow abrupt ditch type mud-rock flow solid source formula, includes the ditch bank massif, and the surface of ditch bank massif is easy landslide region, its characterized in that: the device is characterized by further comprising a debris flow solid source type quick discharging device, wherein the debris flow solid source type quick discharging device corresponds to the lower part of the easy-to-slide area and blocks up a debris flow gully bed.
Preferably, the outer circumferential surface of the body is perpendicular to the outer surface of the landslide prone region.
Preferably, the debris flow solid source type quick discharging device is obliquely arranged according to the gradient of the debris flow gully bed.
Preferably, the part of the debris flow solid source type quick discharging device provided with the water drainage hole is sunk into the landslide-prone area.
A construction method of a narrow steep channel type debris flow solid source type quick-discharging structure,
determining the design flow of the narrow and steep channel type debris flow;
determining the channel size of the body according to the flow design of the narrow and steep channel type debris flow;
leveling an installation site of the fixed-source quick-discharging structure;
determining the layout position of each section of the fixed-source type quick-discharging device;
constructing a locking pile by adopting a manual or mechanical construction method;
binding a reinforcing mesh of the body on site;
pouring concrete of the body;
an anti-abrasion structure is arranged at the bottom of the solid source type quick discharging device;
and (6) drilling a drain hole.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention provides a novel debris flow disaster control structure which is developed aiming at the effects of controlling the supply quantity of a debris flow ditch shore source and preventing the debris flow ditch from being corroded by water. Can effectively prevent narrow abrupt ditch type mud-rock flow ditch bed from corroding down, control bank slope unstability, accelerate the interior excreted novel structure of mud-rock flow of ditch.
Drawings
FIG. 1 is a schematic diagram of a solid source type fast discharging structure of a debris flow;
fig. 2 is a schematic structural view of a debris flow solid source type quick discharging device.
Reference numerals
In the attached drawing, 1-body, 2-bank mountain, 3-erosion limit of mud-rock flow ditch bed, 4-easy landslide area (landslide possibly caused by cutting under the ditch bed), 5-landslide sliding direction, 6-height of blockage of mud-rock flow ditch bed, 7-locking pile, 8-abrasion-resistant structure, 9-water outlet, B-solid source type quick-discharging structure width (m), L-solid source type quick-discharging structure grading length (m), h-locking pile length (m), beta-solid source type quick-discharging structure inclination angle (°)
Detailed Description
Referring to fig. 2, the narrow steep channel type debris flow solid source type quick discharge device mainly comprises a body 1, a locking pile 7, an abrasion-resistant structure 8 and a water discharge hole 9, and is a novel debris flow disaster control structure developed for controlling the supply amount of debris flow channel shore sources and preventing the debris flow channel from corroding downwards aiming at the narrow steep channel type debris flow.
The cross section of the body 1 is oval, the long axis of the oval is the width B of the quick-discharging structure, the length of the single-section solid source type quick-discharging device is L, and the existing relevant technical specifications are adopted for cast-in-place. Taking values: and B is 3-5m, L is 15-20m, the length of the short axis of the ellipse is determined according to the section flow of the quick-discharge structure, and the section flow is determined according to the design flow of the debris flow gully.
The bottom plate of the body 1 is provided with an anti-abrasion structure 8, so that the strong abrasion effect of the mud-rock fluid on the bottom plate of the quick-discharging structure is relieved, the service life of the structure is prolonged, and the structure is generally made of waste steel rails or anti-abrasion polymer materials laid on the surface layer of the bottom plate of the quick-discharging structure, marble with good anti-abrasion performance, granite and the like.
The locking piles 7 are arranged on the edges of the left side and the right side of the solid source type quick-arranging structure, one locking pile is arranged at intervals of 3m within the range of the length of the solid source type quick-arranging structure, the locking piles are cast in situ according to the existing related technical specifications, the length h of each rectangular pile with the section of 30cm multiplied by 30cm is 3-5m, and the structural stability of the body 1 in service is guaranteed.
The drain hole 9 is a pvc core drain hole drilled in the body 1 on site, and is used for draining groundwater in an unstable source of a debris flow gully into the body 1 and draining groundwater to the downstream of the debris flow gully. The distance, diameter and length of the drain holes are designed and constructed according to the prior relevant technical specification.
Referring to fig. 1, a narrow steep channel type mud-rock flow solid source formula fast row structure, including the ditch bank massif, the surface of ditch bank massif is easy landslide region, its characterized in that: the device is characterized by further comprising a debris flow solid source type quick discharging device, wherein the debris flow solid source type quick discharging device corresponds to the lower part of the easy-to-slide area and blocks up a debris flow gully bed. The outer peripheral surface of the body is perpendicular to the outer surface of the easy-to-slide area. The debris flow solid source type quick discharging device is obliquely arranged according to the gradient of a debris flow gully bed. The part of the debris flow solid source type quick discharge device, which is provided with the water drainage hole, is immersed in the easy-to-slide slope area.
In the embodiment, when the body 1 is cast in place, the inclination angle of the single-joint solid source type quick discharging device is beta, and the inclination angle is generally 40-50 degrees according to the drop value of the debris flow gully bed. The front and the rear solid source type quick discharging devices are lapped, the beta value can be different, but seepage prevention is needed, so that debris flow or water seepage in the quick discharging structure is prevented from entering the bottom of the quick discharging structure, and the foundation is softened and even hollowed.
A construction method of a narrow steep channel type debris flow solid source type quick-discharging structure comprises the following steps: determining the design flow of the narrow steep channel type debris flow → determining the size of the section of the solid source type quick-discharging structure → leveling the field → determining the arrangement part of the single-section solid source type quick-discharging device → adopting a manual or mechanical construction method to construct a locking pile 7 → field binding of a reinforcing mesh of the solid source type quick-discharging structure → pouring of concrete of the solid source type quick-discharging structure → arrangement of an anti-abrasion structure 8 at the bottom of the solid source type quick-discharging structure → drilling of debris flow channel bank slope drainage holes 9 on the left side wall and the right side wall of the solid source type quick-discharging structure.
Principle of operation
After the construction of the multi-section solid source type quick-discharging device in the narrow steep channel type debris flow channel is completed, the cross section of the solid source type quick-discharging structure is oval, and the thick-layer material source slope toe with poor stability of the debris flow channel bank is prevented from being eroded and suspended by debris fluid to cause a potential landslide area 4. Even if the bank slope source is unstable due to heavy rainfall or ice and snow melting water, the landslides moving to the opposite bank of the trench or the two banks through the top of the solid source type fast discharging device in the easy-to-slide region 4 are converged at the top of the solid source type fast discharging device, and the solid source type fast discharging structure is buried, so that the stability of the source in the trench is enhanced. The debris flow enters from the upstream end of the solid source type quick discharge structure and is quickly discharged to the downstream of the debris flow ditch. The debris flow is discharged in the solid source type quick discharge structure, and the downward cutting 3 of the narrow steep channel type debris flow channel bed is avoided. Obviously, the method is suitable for preventing the narrow and steep channel type debris flow disasters, and can be used for controlling loose substances on the channel bank to enter the channel to form debris flow and preventing the debris flow channel bed from corroding downwards to cause the bank slope to be damaged and destabilized.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a device is arranged fast to narrow abrupt ditch type mud-rock flow solid source formula which characterized in that:
comprises a body, wherein the body is of a tubular structure;
a plurality of locking piles are respectively arranged on two sides of the body and are used for being fixed on the ditch and bank mountain bodies;
the body is provided with a plurality of water drainage holes for guiding water seeped from the ditch and bank mountains into the channel of the body to be discharged.
2. The narrow steep channel type debris flow solid source type quick discharge device according to claim 1, wherein: the cross section of the body is oval, and the long axis of the body is arranged along the horizontal direction.
3. The narrow steep channel type debris flow solid source type quick discharge device according to claim 1, wherein: the bottom plate of body is provided with and resists the erosion structure.
4. The narrow steep channel type debris flow solid source type quick discharge device according to claim 1, wherein: the locking piles are rectangular piles.
5. The narrow steep channel type debris flow solid source type quick discharge device according to claim 1, wherein: a pvc pipe is arranged in the water drainage hole.
6. The utility model provides a structure is arranged fast to narrow abrupt ditch type mud-rock flow solid source formula, includes the ditch bank massif, and the surface of ditch bank massif is easy landslide region, its characterized in that: the device further comprises a debris flow solid source type quick discharge device according to any one of claims 1 to 5, wherein the debris flow solid source type quick discharge device corresponds to the lower part of the easy-to-slide area and blocks a debris flow gully bed.
7. The narrow steep channel type debris flow solid source type fast discharging structure of claim 6, wherein: the outer peripheral surface of the body is perpendicular to the outer surface of the easy-to-slide area.
8. The narrow steep channel type debris flow solid source type fast discharging structure of claim 6, wherein: the debris flow solid source type quick discharging device is obliquely arranged according to the gradient of a debris flow gully bed.
9. The narrow steep channel type debris flow solid source type fast discharging structure of claim 6, wherein: the part of the debris flow solid source type quick discharge device, which is provided with the water drainage hole, is immersed in the easy-to-slide slope area.
10. A construction method of a narrow steep channel type debris flow solid source type quick-discharging structure is characterized by comprising the following steps:
determining the design flow of the narrow and steep channel type debris flow;
determining the channel size of the body according to the flow design of the narrow and steep channel type debris flow;
leveling an installation site of the fixed-source quick-discharging structure;
determining the layout position of each section of the fixed-source type quick-discharging device;
constructing a locking pile by adopting a manual or mechanical construction method;
binding a reinforcing mesh of the body on site;
pouring concrete of the body;
an anti-abrasion structure is arranged at the bottom of the solid source type quick discharging device;
and (6) drilling a drain hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110122443.8A CN112921888A (en) | 2021-01-29 | 2021-01-29 | Narrow-steep-channel type debris flow solid source type quick discharging device, structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110122443.8A CN112921888A (en) | 2021-01-29 | 2021-01-29 | Narrow-steep-channel type debris flow solid source type quick discharging device, structure and construction method |
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| CN112921888A true CN112921888A (en) | 2021-06-08 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886374A (en) * | 2010-07-07 | 2010-11-17 | 中国科学院水利部成都山地灾害与环境研究所 | Groove bottom-reinforced fully lined debris flow drainage groove and construction method thereof |
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2021
- 2021-01-29 CN CN202110122443.8A patent/CN112921888A/en active Pending
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Application publication date: 20210608 |