CN112343011A - Debris flow drainage structure - Google Patents
Debris flow drainage structure Download PDFInfo
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- CN112343011A CN112343011A CN202011192502.0A CN202011192502A CN112343011A CN 112343011 A CN112343011 A CN 112343011A CN 202011192502 A CN202011192502 A CN 202011192502A CN 112343011 A CN112343011 A CN 112343011A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/082—Closures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/085—Arresting devices for waterborne materials, e.g. gratings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/087—Divisors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a debris flow drainage and guide structure which comprises a mountain body, a flow choking mechanism arranged on the inclined plane of the mountain body and a flow guide mechanism arranged at the bottom of the mountain body, wherein the flow choking mechanism is arranged on the inclined plane of the mountain body; the flow blocking mechanism comprises at least two side walls perpendicular to the mountain body, and the side walls are anchored on the mountain body; a plurality of concave energy dissipation grooves are transversely arranged between adjacent side walls; the invention retards the debris flow through the flow choking mechanism, reduces the downward sliding potential energy of the debris flow and achieves the purpose of reducing the flow velocity of the debris flow; guiding the debris flow sliding down from the flow blocking mechanism to the designated positions at two horizontal sides through the flow guide mechanism, so as to avoid destructive damage of the debris flow to the building facilities or engineering facilities below the mountain; the energy dissipation groove, the blocking pile and the blocking frame are adopted, the mud-rock flow is better blocked under the triple measures, the downward sliding potential energy and speed of the mud-rock flow are reduced to the maximum extent, and the destructive damage of the mud-rock flow to the building facilities and the engineering facilities below the mountain is avoided.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a debris flow drainage structure.
Background
The debris flow refers to a special flood flow which is caused by landslide caused by rainstorm, snowstorm or other natural disasters and carries a large amount of silt and stones in a mountain area or other gullies and in a severe terrain. The debris flow has the characteristics of high abruptness, high flow rate, high flow, large material capacity, strong destructive power and the like. The traffic facilities such as roads and railways, even villages and towns and the like are often destroyed by debris flow, and huge loss is caused. The debris flow drainage engineering is an engineering facility for preventing and treating debris flow, and is built in residential areas, industrial and mining areas and traffic areas where the debris flow often harms nearby. The drainage groove is one of the main types of debris flow prevention and treatment projects and is widely used in debris flow treatment. The drainage and guide groove is an engineering that debris flow is guided to smoothly pass through a protective area (section) through a channel which is manually built or reconstructed and is discharged to the downstream to enter a main river channel. However, the traditional guide groove has single function and does not have the guide and flow blocking effects; in addition, in the process of drainage, the debris flow is easy to flow into engineering facilities.
In the prior art, chinese patent CN102926356B discloses a debris flow drainage groove with energy dissipation and drainage functions and its application. The drainage groove comprises a fully lined drainage groove bottom plate and drainage groove side walls on two sides of the fully lined drainage groove bottom plate, the drainage groove bottom plate is in a ladder shape formed by continuously connecting a plurality of steps, grooves are formed in the steps, the width of each groove on the top surface of each step is gradually increased along the flow direction of debris flow, the width of each groove on the vertical surface of each step is gradually reduced from high to low, and the maximum width of each groove on the top surface of each step is overlapped with the maximum width B of each groove on the vertical surface of each step. However, the energy dissipation effect of the scheme is weak, and the scheme can only guide the debris flow in a straight line and is limited by site construction, so that the use of the scheme has certain limitation.
In the prior art, chinese patent CN204370384U discloses a graded energy dissipation and drainage system for debris flow, which includes a drainage channel, and an interception device and a blocking device arranged in the drainage channel, wherein the interception device for intercepting broken stones is arranged at the middle upper part of the drainage channel, the blocking device for decelerating debris flow is arranged at the middle part of the drainage channel, and the middle lower part of the drainage channel includes a non-linear channel for extending a debris flow channel. The graded energy dissipation and drainage system for the debris flow reduces the energy of the debris flow in the debris flow drainage process in a graded mode, and effectively reduces the impact destructive power of the debris flow. But the energy dissipation effect of the scheme is weaker, and the mud-rock flow cannot be well dissipated; and only the debris flow is guided in a straight line or a curve; for the residential areas, industrial and mining areas and traffic areas below the mountain, the guidance of the scheme can cause the interruption and damage of surrounding building facilities and damage to the residential areas; the scheme is only suitable for the situation that no building facilities or residential areas exist below the mountain, and therefore has certain limitation.
Disclosure of Invention
Aiming at the technical problems that the energy dissipation effect of the debris flow is not obvious, the function is single and the debris flow drainage system has limitation in the prior art, the invention provides the debris flow drainage structure which is particularly suitable for nearby residential areas, industrial and mining areas and traffic areas.
The technical scheme adopted by the invention is as follows: a debris flow deflector structure comprising:
a mountain body;
the flow blocking mechanism is arranged on the inclined plane of the mountain body and used for blocking the downward flow of the debris flow;
the flow guide mechanism is arranged at the bottom of the mountain, is connected with the flow blocking mechanism and is used for horizontally guiding the debris flow sliding down from the flow blocking mechanism;
the flow blocking mechanism comprises at least two side walls perpendicular to the mountain body, and the side walls are anchored on the mountain body; a plurality of concave energy dissipation grooves are transversely arranged between adjacent side walls; broken stones are laid at the bottom of the energy dissipation groove.
The invention retards the debris flow through the flow choking mechanism, reduces the downward sliding potential energy of the debris flow and achieves the purpose of reducing the flow velocity of the debris flow; and the debris flow sliding down from the flow blocking mechanism is guided to the designated positions at the two horizontal sides by the flow guide mechanism, so that the debris flow is prevented from destructively damaging building facilities or engineering facilities below the mountain. The method specifically comprises the following steps: when the debris flow passes through the energy dissipation grooves, the energy dissipation grooves play a role in buffering the debris flow and offset the downward sliding potential energy of part of the debris flow, so that the aim of reducing the flow speed of the debris flow is fulfilled; in addition, arrange the rubble at energy dissipation tank bottom and also play the cushioning effect, have the clearance between the rubble, avoid big stone to drop when the energy dissipation groove, damage the tank bottom of energy dissipation groove, play the guard action to the energy dissipation groove. The debris flow drainage structure has both flow choking and drainage functions, and is simple in structure, convenient to construct, short in construction period and low in construction cost.
Furthermore, a plurality of retarding piles are arranged between adjacent energy dissipation grooves, and bases are arranged at the end parts of the retarding piles; the base is embedded in the mountain body, and the blocking pile extends out of the surface of the mountain body; and adjacent blocking piles are connected through a cross rod. The blocking pile plays a role in blocking the flowing debris flow and slows down the gliding speed of the debris flow; in addition, the horizontal pole is connected the retardant stake of same horizontal row, has strengthened the holistic intensity of retardant stake, improves the holistic stability and the fastness of retardant stake to guarantee the retardant effect of retardant stake to the mud-rock flow.
Further, the base is conical, and the base is gradually increased in the direction away from the retaining pile; and a reinforcing rib vertical to the blocking pile is arranged on the base. The reinforcing ribs improve the stability and firmness of the connection between the blocking pile and the mountain body and ensure the blocking effect of the blocking pile on the debris flow; in addition, the base is the toper, increases the frictional force of base and massif, is difficult for being extracted after the base inserts the massif, has also played the effect that has improved the stability and the fastness that retard stake and massif are connected.
Furthermore, one side of the flow resisting mechanism, which is close to the flow guide mechanism, is obliquely provided with a blocking frame, and the blocking frame is clamped between two adjacent side walls; the blocking frame is provided with an intercepting net. The blocking frame has a blocking effect on the flowing debris flow, reduces the gliding potential energy of the debris flow and reduces the gliding speed of the debris flow; in conclusion, the energy dissipation groove, the blocking pile and the blocking frame are adopted to block the debris flow, and the energy dissipation groove, the blocking pile and the blocking frame are adopted to block the debris flow better under the triple measures, so that the sliding potential energy and speed of the debris flow are reduced to the maximum extent, and the debris flow is prevented from destructively damaging building facilities or engineering facilities below a mountain.
Further, the mesh width of the interception net is 3-4 cm; the interception net is a galvanized low-carbon steel wire net. When the debris flow slides downwards, most of the debris and the slurry are small, so that the mesh width of the interception net is set to be 3-4 cm, the small debris and the slurry can be ensured to pass through, and the interception net is prevented from being damaged as the small debris and the slurry are accumulated on one side of the interception net more and more; in addition, the interception net is a galvanized low-carbon steel wire net, the toughness of the steel wire net is improved, the steel wire net has larger deformation to cope with gliding debris flow, and the galvanization can also play roles in oxidation resistance and corrosion resistance, so that the service life of the interception net is prolonged.
Furthermore, one side of the retarding frame, which is close to the flow guide mechanism, is provided with an inclined strut; one end of the inclined strut is connected with the blocking frame, and the other end of the inclined strut is inserted into the mountain body. The inclined strut has a reinforcing effect on the retarding frame, and the stability and firmness of the connection between the inclined strut and the mountain body are enhanced, so that the inclined strut has stronger impact resistance.
Further, the flow guide mechanism comprises a flow guide groove which is horizontally arranged, and the flow guide groove is vertical to the side wall; the inner side surface of the diversion trench is provided with a lining layer. The diversion trench guides the debris flow sliding up and down on the mountain to the two horizontal sides, so that the debris flow is prevented from destructively damaging building facilities or engineering facilities below the mountain; in addition, the lining layer can reduce the friction force between the debris flow and the flow guide ditch, and improve the flow velocity of the debris flow so as to meet the tassels of the debris flow sliding up and down on the mountain and ensure the accelerated drainage of the flow guide ditch; avoid the debris flow to gather, play and accelerate the debris flow dispersion.
Furthermore, the part of the flow guide groove connected with the flow resisting mechanism is higher than the two sides. That is to say, the middle of the diversion trench is high, and both sides are low, and the purpose is in order to improve the velocity of flow of mud-rock flow, avoid mud-rock flow to gather, play and accelerate mud-rock flow dispersion.
Furthermore, a retaining wall is arranged on one side of the diversion trench far away from the flow blocking mechanism. The mud-rock flow sliding down from the flow resisting mechanism has larger potential energy and faster flow speed, so the mud-rock flow has larger impact on the flow guide groove and can possibly go out of the flow guide groove to cause damage or displacement. Therefore, the retaining wall is arranged to improve the stability, firmness and strength of the diversion trench and ensure that the diversion trench can sufficiently cope with downward sliding debris flow.
Furthermore, the height of the retaining wall is higher than that of the diversion trench. The mud-rock flow sliding down from the flow blocking mechanism has high speed and large impact, and the mud-rock flow can be splashed or overflowed. Therefore, the height of the retaining wall is set to be higher than that of the diversion trench, so that the overflowing or splashing debris flow is blocked, and the damage of the splashing or overflowing debris flow to the building facilities or engineering facilities below the mountain is avoided.
The invention has the beneficial effects that:
1. the invention retards the debris flow through the flow choking mechanism, reduces the downward sliding potential energy of the debris flow and achieves the purpose of reducing the flow velocity of the debris flow; and the debris flow sliding down from the flow blocking mechanism is guided to the designated positions at the two horizontal sides by the flow guide mechanism, so that the debris flow is prevented from destructively damaging building facilities or engineering facilities below the mountain.
2. The debris flow drainage structure has both flow choking and drainage functions, and is simple in structure, convenient to construct, short in construction period and low in construction cost.
3. The energy dissipation groove, the blocking pile and the blocking frame are adopted, the mud-rock flow is better blocked under the triple measures, the downward sliding potential energy and speed of the mud-rock flow are reduced to the maximum extent, and the destructive damage of the mud-rock flow to building facilities or engineering facilities below a mountain is avoided.
4. The height of the retaining wall is set to be higher than that of the diversion trench, so that the retaining wall has a blocking effect on overflowing or splashing debris flow, and the splashing or overflowing debris flow is prevented from damaging building facilities or engineering facilities below a mountain.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partially enlarged view of a in fig. 1.
Fig. 3 is a schematic view of the structure of the flow blocking mechanism.
Fig. 4 is a schematic cross-sectional view of a flow blocking mechanism.
Fig. 5 is a schematic view of the construction of a retarder pile.
Fig. 6 is a schematic cross-sectional view of a guide channel.
Labeled as:
1. a mountain body; 2. a flow choking mechanism; 3. a flow guide mechanism;
201. a side wall; 202. an energy dissipation groove; 203. crushing stone; 204. blocking the pile; 205. a base; 206. a cross bar; 207. reinforcing ribs; 208. a block frame; 209. an intercepting net; 210. bracing;
301. a flow guide groove; 302. a lining layer; 303. and (7) retaining walls.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example one
Referring to fig. 1 to 6, a debris flow discharging structure of the present invention includes:
1, mountain body;
the flow blocking mechanism 2 is arranged on the inclined plane of the mountain body and used for blocking the downward flow of the debris flow;
the flow guide mechanism 3 is arranged at the bottom of the mountain, is connected with the flow blocking mechanism and is used for horizontally guiding the debris flow sliding downwards from the flow blocking mechanism; the flow resisting mechanism 2 comprises at least two side walls 201 perpendicular to the mountain body, and the side walls 201 are anchored on the mountain body 1; a plurality of concave energy dissipation grooves 202 are transversely arranged between adjacent side walls; the bottom of the energy dissipation groove is paved with broken stones 203. The invention retards the debris flow through the flow choking mechanism, reduces the downward sliding potential energy of the debris flow and achieves the purpose of reducing the flow velocity of the debris flow; and the debris flow sliding down from the flow blocking mechanism is guided to the designated positions at the two horizontal sides by the flow guide mechanism, so that the debris flow is prevented from destructively damaging building facilities or engineering facilities below the mountain. The method specifically comprises the following steps: when the debris flow passes through the energy dissipation grooves, the energy dissipation grooves play a role in buffering the debris flow and offset the downward sliding potential energy of part of the debris flow, so that the aim of reducing the flow speed of the debris flow is fulfilled; in addition, arrange the rubble at energy dissipation tank bottom and also play the cushioning effect, have the clearance between the rubble, avoid big stone to drop when the energy dissipation groove, damage the tank bottom of energy dissipation groove, play the guard action to the energy dissipation groove. The debris flow drainage structure has both flow choking and drainage functions, and is simple in structure, convenient to construct, short in construction period and low in construction cost.
Referring to fig. 1, the flow guiding mechanism 3 of the present embodiment includes a flow guiding trench 301 horizontally disposed, and the flow guiding trench 301 is perpendicular to the side wall 201; the surface of the inner side of the diversion trench is provided with a lining layer 302. The diversion trench guides the debris flow sliding up and down on the mountain to the two horizontal sides, so that the debris flow is prevented from destructively damaging building facilities or engineering facilities below the mountain; in addition, the lining layer can reduce the friction force between the debris flow and the flow guide ditch, and improve the flow velocity of the debris flow so as to meet the tassels of the debris flow sliding up and down on the mountain and ensure the accelerated drainage of the flow guide ditch; avoid the debris flow to gather, play and accelerate the debris flow dispersion.
Example two
Referring to fig. 3 and 5, on the basis of the first embodiment, a plurality of blocking piles 204 are arranged between adjacent energy dissipation grooves, and the ends of the blocking piles are provided with bases 205; the base is embedded in the mountain body, and the blocking pile extends out of the surface of the mountain body; adjacent retaining piles are connected by a cross-bar 206. The blocking pile plays a role in blocking the flowing debris flow and slows down the gliding speed of the debris flow; in addition, the horizontal pole is connected the retardant stake of same horizontal row, has strengthened the holistic intensity of retardant stake, improves the holistic stability and the fastness of retardant stake to guarantee the retardant effect of retardant stake to the mud-rock flow.
Referring to fig. 5, the base 205 of this embodiment is conical, with the base increasing in the direction away from the retarder pile; the base is provided with a reinforcement 207 perpendicular to the retarder pile. The reinforcing ribs improve the stability and firmness of the connection between the blocking pile and the mountain body and ensure the blocking effect of the blocking pile on the debris flow; in addition, the base is the toper, increases the frictional force of base and massif, is difficult for being extracted after the base inserts the massif, has also played the effect that has improved the stability and the fastness that retard stake and massif are connected.
EXAMPLE III
Referring to fig. 1, 2 and 3, on the basis of the first embodiment, a blocking frame 208 is obliquely arranged on one side of the flow blocking mechanism close to the flow guide mechanism, and the blocking frame is clamped between two adjacent side walls; the blocking frame 208 is provided with an intercepting net 209. The blocking frame has a blocking effect on the flowing debris flow, reduces the gliding potential energy of the debris flow and reduces the gliding speed of the debris flow; in conclusion, the energy dissipation groove, the blocking pile and the blocking frame are adopted to block the debris flow, and the energy dissipation groove, the blocking pile and the blocking frame are adopted to block the debris flow better under the triple measures, so that the sliding potential energy and speed of the debris flow are reduced to the maximum extent, and the debris flow is prevented from destructively damaging building facilities or engineering facilities below a mountain.
The mesh width of the interception net in the embodiment is 3-4 cm; the interception net is a galvanized low-carbon steel wire net. When the debris flow slides downwards, most of the debris and the slurry are small, so that the mesh width of the interception net is set to be 3-4 cm, the small debris and the slurry can be ensured to pass through, and the interception net is prevented from being damaged as the small debris and the slurry are accumulated on one side of the interception net more and more; in addition, the interception net is a galvanized low-carbon steel wire net, the toughness of the steel wire net is improved, the steel wire net has larger deformation to cope with gliding debris flow, and the galvanization can also play roles in oxidation resistance and corrosion resistance, so that the service life of the interception net is prolonged.
Referring to fig. 1 and 2, in the present embodiment, an inclined strut 210 is disposed at a side of the blocking frame close to the diversion mechanism; one end of the inclined strut is connected with the blocking frame 208, and the other end is inserted in the mountain body 1. The inclined strut has a reinforcing effect on the retarding frame, and the stability and firmness of the connection between the inclined strut and the mountain body are enhanced, so that the inclined strut has stronger impact resistance.
Example four
Referring to fig. 1, on the basis of the first embodiment, a retaining wall 303 is disposed on a side of the diversion trench away from the flow blocking mechanism. The mud-rock flow sliding down from the flow resisting mechanism has larger potential energy and faster flow speed, so the mud-rock flow has larger impact on the flow guide groove and can possibly go out of the flow guide groove to cause damage or displacement. Therefore, the retaining wall is arranged to improve the stability, firmness and strength of the diversion trench and ensure that the diversion trench can sufficiently cope with downward sliding debris flow.
EXAMPLE five
Referring to fig. 1, on the basis of the fourth embodiment, the height of the retaining wall 303 of the present embodiment is higher than that of the diversion trench 301. The mud-rock flow sliding down from the flow blocking mechanism has high speed and large impact, and the mud-rock flow can be splashed or overflowed. Therefore, the height of the retaining wall is set to be higher than that of the diversion trench, so that the overflowing or splashing debris flow is blocked, and the damage of the splashing or overflowing debris flow to the building facilities or engineering facilities below the mountain is avoided.
EXAMPLE six
Referring to fig. 6, on the basis of the fifth embodiment, the portion of the guide groove connected with the flow blocking mechanism is higher than the two sides. That is to say, the middle of the diversion trench is high, and both sides are low, and the purpose is in order to improve the velocity of flow of mud-rock flow, avoid mud-rock flow to gather, play and accelerate mud-rock flow dispersion.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A debris flow drainage structure, comprising:
a mountain body (1);
the flow blocking mechanism (2) is arranged on the inclined plane of the mountain body and used for blocking the downward flow of the debris flow;
the flow guide mechanism (3) is arranged at the bottom of the mountain, is connected with the flow blocking mechanism and is used for horizontally guiding the debris flow sliding downwards from the flow blocking mechanism;
the flow resisting mechanism (2) comprises at least two side walls (201) perpendicular to the mountain body, and the side walls (201) are anchored on the mountain body (1); a plurality of concave energy dissipation grooves (202) are transversely arranged between the adjacent side walls; broken stones (203) are laid at the bottom of the energy dissipation groove.
2. A debris flow deflector structure according to claim 1, wherein a plurality of retaining piles (204) are provided between adjacent energy dissipaters, the ends of the retaining piles being provided with bases (205); the base is embedded in the mountain body, and the blocking pile extends out of the surface of the mountain body; the adjacent retardation piles are connected through a cross bar (206).
3. A debris flow deflector according to claim 2, wherein the base (205) is tapered, the base increasing in size in a direction away from the retaining pile;
and a reinforcing rib (207) perpendicular to the blocking pile is arranged on the base.
4. The debris flow guiding structure as claimed in claim 1, wherein a blocking frame (208) is obliquely arranged on one side of the flow blocking mechanism close to the flow guiding mechanism, and the blocking frame is clamped between two adjacent side walls;
an interception net (209) is arranged on the blocking frame (208).
5. The debris flow drainage structure according to claim 4, wherein the width of the mesh of the intercepting net is 3-4 cm; the interception net is a galvanized low-carbon steel wire net.
6. The debris flow deflector structure of claim 4, wherein the retarding frame is provided with a diagonal brace (210) at a side close to the deflector mechanism; one end of the inclined strut is connected with the retarding frame (208), and the other end is inserted in the mountain body (1).
7. The debris flow drainage structure according to claim 1, wherein the flow guide mechanism (3) comprises a horizontally arranged flow guide groove (301), and the flow guide groove (301) is perpendicular to the side wall (201); the surface of the inner side of the flow guide groove is provided with a lining layer (302).
8. The debris flow deflector structure of claim 7, wherein the portion of the guide channel connected to the flow blocking mechanism is higher than both sides.
9. The debris flow deflector structure according to claim 7, wherein a retaining wall (303) is provided on a side of the deflector channel remote from the flow blocking mechanism.
10. The debris flow deflector structure of claim 9, wherein the height of the retaining wall (303) is higher than the height of the diversion trench (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192502.0A CN112343011A (en) | 2020-10-30 | 2020-10-30 | Debris flow drainage structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192502.0A CN112343011A (en) | 2020-10-30 | 2020-10-30 | Debris flow drainage structure |
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| CN112343011A true CN112343011A (en) | 2021-02-09 |
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| CN202011192502.0A Pending CN112343011A (en) | 2020-10-30 | 2020-10-30 | Debris flow drainage structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944116A (en) * | 2021-11-04 | 2022-01-18 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Debris flow drainage device for easy-to-slide mountain and drainage method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113944116A (en) * | 2021-11-04 | 2022-01-18 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Debris flow drainage device for easy-to-slide mountain and drainage method thereof |
| CN113944116B (en) * | 2021-11-04 | 2022-10-28 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Debris flow drainage device for easy-to-slide mountain and drainage method thereof |
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Application publication date: 20210209 |
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