CN112359776A - Wide slow channel type debris flow blocking-guiding-draining stone separation comprehensive treatment system - Google Patents
Wide slow channel type debris flow blocking-guiding-draining stone separation comprehensive treatment system Download PDFInfo
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- CN112359776A CN112359776A CN202011305417.0A CN202011305417A CN112359776A CN 112359776 A CN112359776 A CN 112359776A CN 202011305417 A CN202011305417 A CN 202011305417A CN 112359776 A CN112359776 A CN 112359776A
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- water
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- stone separation
- debris flow
- rock flow
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a wide slow channel type debris flow blocking-guiding-draining stone separation comprehensive treatment system. The utility model provides a wide slow trench type mud-rock flow blocks-leads-water conservancy diversion stone separation comprehensive treatment system, includes blocks sediment dam, water conservancy diversion dyke, the drainage groove that sets gradually along the mud-rock flow direction on the mud-rock flow ditch, wherein, block sediment dam, water conservancy diversion dyke and be located the gentle slope section of mud-rock flow ditch, the drainage groove is located the abrupt slope section of mud-rock flow ditch, the mud-rock flow ditch that blocks sediment dam upper reaches end is the water stone disengagement zone, has arranged a plurality of mud-rock flow water stone separation combs in the water stone disengagement zone, and the mud-rock flow water stone separation of lower reaches end combs the upper reaches end through drain pipe intercommunication drainage groove respectively, and the mud-rock flow water stone separation of upper reaches end combs the lower reaches end through drain pipe intercommunication drainage groove respectively.
Description
Technical Field
The invention relates to the technical field of debris flow treatment, in particular to a wide slow channel type debris flow blocking-guiding-draining stone separation comprehensive treatment system.
Background
The wide slow channel type debris flow belongs to super-huge debris flow, and has the disadvantages of large impact, large silt, variable erosion and explosion of the debris flow, and great harm. Therefore, the research and development of a new technology are of great practical significance for improving the treatment level of the wide slow channel type debris flow disasters.
At present, the disaster treatment is mainly carried out by adopting technical measures such as a multi-stage slag blocking dam, a silt stopping area, a drainage groove and the like, the water-stone separation cannot be realized, the sedimentation speed of the storage capacity of the slag blocking dam is high, and the impact damage effect of debris flow is strong.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a comprehensive treatment system for blocking-guiding-draining stone separation of a wide slow channel type debris flow.
The purpose of the invention is realized as follows:
the utility model provides a wide slow trench type mud-rock flow blocks-leads-water conservancy diversion stone separation comprehensive treatment system, includes blocks sediment dam, water conservancy diversion dyke, the drainage groove that sets gradually along the mud-rock flow direction on the mud-rock flow ditch, wherein, block sediment dam, water conservancy diversion dyke and be located the gentle slope section of mud-rock flow ditch, the drainage groove is located the abrupt slope section of mud-rock flow ditch, the mud-rock flow ditch that blocks sediment dam upper reaches end is the water stone disengagement zone, has arranged a plurality of mud-rock flow water stone separation combs in the water stone disengagement zone, and the mud-rock flow water stone separation of lower reaches end combs the upper reaches end through drain pipe intercommunication drainage groove respectively, and the mud-rock flow water stone separation of upper reaches end combs the lower reaches end through drain pipe intercommunication drainage groove respectively.
Preferably, the water conservancy diversion dyke is the horn mouth form, the drainage groove is the straight flute, and the upper end and the water conservancy diversion dyke intercommunication of drainage groove, the lower extreme of drainage groove is used for discharging the torrential flood.
Preferably, the debris flow water-stone separation grates arranged in the debris flow gully bed are arranged into at least two rows along the flow direction of the debris flow, wherein the number of the debris flow water-stone separation grates at the downstream end is less than that of the debris flow water-stone separation grates at the upstream end, and a drainage hole outflow port is respectively arranged on the bottom plate of the drainage groove corresponding to each row of the debris flow water-stone separation grates.
Preferably, the debris flow water-stone separation grate comprises a base made of concrete filler, a sunken hemispherical water inlet cavity is formed in the upper end face of the base, an arched hemispherical grate cover covers the water inlet cavity, grate holes for water-stone separation are formed in the grate cover, and the upper ends of the drain pipes are respectively embedded in the corresponding bases and are communicated with the lower end of the water inlet cavity.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the debris flow water stone separation comb of water stone separation district arranges and lays, and the arrangement mode that many back are few more before, makes the velocity of flow of debris flow reduce fast, has greatly reduced the impact force of debris flow to blocking the sediment dam.
2. Through water-stone separation, the debris flow is converted into torrential flood, and buildings and roads are prevented from being washed down.
3. The debris flow water and stone separation grate and the drain pipe are distributed in a three-dimensional manner, the debris flow water and stone separation grate at the downstream end is respectively communicated with the upstream end of the drainage guide groove through the drain pipe, the debris flow water and stone separation grate at the upstream end is respectively communicated with the downstream end of the drainage guide groove through the drain pipe, and the water separated at the upstream end is larger.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic illustration of a terrazzo separation zone;
FIG. 4 is a schematic elevation view of a debris flow water-stone separation grate;
fig. 5 is a schematic plan view of a debris flow water-stone separation grate.
Reference numerals
In the attached drawings, 1-a debris flow ditch, 2-a debris retaining dam, 3-a diversion dike, 4-a drainage groove, 5-a debris flow water-stone separation grate, 6-a drainage pipe, 7-a drainage hole outflow port, 8-a debris flow movement direction at the upstream of the debris retaining dam, 9-a debris flow ditch bank, 10-a debris position at the upstream of the debris retaining dam, 11-a debris flow ditch bed, 12-a drainage groove bottom plate and 13-a base;
b-debris flow channel width (m), L-drainage guide groove length (m), B-drainage guide groove width (m), a-drainage pipe outlet interval (m) on a drainage guide groove bottom plate, e-water stone separation zone width (m), h-water stone separation zone length (m), c-grate hole interval (cm), t-grate cover rise (cm), D-grate hole diameter (cm) and D-grate cover diameter (cm).
Detailed Description
Examples
The invention consists of a slag blocking dam, a drainage and guidance structure and a water-stone separation system (as shown in figures 1 and 2), wherein the slag blocking dam is arranged at the upstream of the drainage and guidance structure by 30-50 m and is a concrete or masonry structure constructed and implemented according to the prior relevant technical specification.
The drainage structure is composed of a diversion dike 3 and a drainage groove 4, the drainage groove 4 is a linear groove, a water outlet 7 of a water-stone separation structure drainage hole is arranged at the bottom of the groove, the distance between the drainage pipe outlet and the bottom plate of the drainage groove is a, generally, a is 5-10 m, and the drainage structure is a concrete or masonry structure implemented according to the prior relevant technical specification.
In order to realize the water-stone separation of the mud-stone fluid, the invention is provided with a water-stone separation system which consists of a water-stone separation area, a mud-stone flow water-stone separation grate 5 and a water discharge pipe 6 (shown in figures 1 and 2), wherein the water-stone separation area is a rectangular area, the width of the water-stone separation area is e, the length of the water-stone separation area is h, and the e is 20-30 m, and the h is 6 m.
The debris flow water-stone separation grate 5 is arranged in the water-stone separation area, and a plurality of debris flow water-stone separation grates 5 are arranged in the water-stone separation area, as shown in fig. 3. The debris flow water stone separation grate 5 is a capped concave hemispherical space as shown in fig. 4 and 5. A drain pipe 6 is laid in the concave hemispherical space, and a base 13 is cast on site around the drain pipe to prevent water leakage of the pipe wall. The debris flow water-stone separation grate cover is a prefabricated perforated reinforced concrete spherical crown, a plurality of grate holes are arranged on the spherical crown according to a determinant, the diameter is D, the rise of the grate cover is t, the diameter of the grate hole is D, the distance between the grate holes is c, and the parameter value is as follows: d is 100-120 cm, t is 30-50 cm, D is 5-10 cm, and c is 20-30 cm.
The top end of the drain pipe 6 is embedded in the debris flow water-stone separation grate 5, the bottom end of the drain pipe is fixed on the bottom plate 12 of the drainage groove, the distance between the outflow openings of the drain pipe and the bottom plate of the drainage groove is a, 500cm is taken, and the diameter of the drain pipe is 30-50 cm. Every outflow opening 7 arranged on the bottom plate of the drainage groove comprises a plurality of drainage pipe outlet ends. The drain pipe is a commercial product.
The implementation steps are as follows: according to the change characteristics of the protected object and the erosion and deposition of the wide slow channel type debris flow, the arrangement position of a treatment project is selected in the debris flow channel → a security drainage pipe system of a flat field → a drainage and guidance structure is built → a slag dam is built → a concave hemispherical space of a debris flow water and stone separation grate is built in a debris flow separation area → a debris flow water and stone separation grate cover prefabricated structure is arranged and fixed.
After the debris flow erupts, the water stone separation zone of sediment dam front end is blocked in the fast flow, and the water in the debris flow is combed through debris flow water stone separation and is excreted fast, gets into and excretes to the low reaches behind the drainage groove, and thick lump stone in the debris flow is excreted because of the water separation, and the velocity of flow reduces fast and the deposit is in the water stone separation zone, has greatly reduced the impact force of debris flow to blocking the sediment dam. And when the residual debris fluid after passing through the comprehensive treatment structure continuously flows to the downstream of the debris flow gully, the debris fluid is basically converted into torrential flood, so that the damage to downstream roads and urban building structures is obviously reduced.
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 (4)
1. A wide slow channel type debris flow blocking-guiding-draining stone separation comprehensive treatment system is characterized in that: include on the mud-rock flow ditch along mud-rock flow direction block sediment dam, water conservancy diversion dyke, row's guide slot that sets gradually, wherein, block sediment dam, water conservancy diversion dyke and be located the gentle slope section of mud-rock flow ditch, the guide slot is located the abrupt slope section of mud-rock flow ditch, the mud-rock flow ditch that blocks sediment dam upper reaches end is the water stone disengagement zone, has arranged a plurality of mud-rock flow water stone separation in the water stone disengagement zone and combs, and the mud-rock flow water stone separation of lower reaches end combs the upper reaches end through drain pipe intercommunication guide slot respectively, and the mud-rock flow water stone separation of upper reaches end combs the lower reaches end through drain pipe intercommunication guide slot respectively.
2. The comprehensive treatment system for wide and slow channel type debris flow interception-guidance-drainage stone separation as claimed in claim 1, which is characterized in that: the water conservancy diversion dyke is the horn mouth form, the drainage groove is the straight flute, and the upper end and the water conservancy diversion dyke intercommunication of drainage groove, the lower extreme of drainage groove is used for discharging the torrential flood.
3. The comprehensive treatment system for wide and slow channel type debris flow interception-guidance-drainage stone separation as claimed in claim 1, which is characterized in that: the debris flow water-stone separation combs that arrange in the debris flow gully bed arrange into two rows at least along the debris flow direction, wherein, the debris flow water-stone separation comb quantity of low reaches end is less than the debris flow water-stone separation comb quantity of upper reaches end, corresponds on the drainage groove bottom plate and arranges a wash port discharge opening respectively that debris flow water-stone separation combs.
4. The comprehensive treatment system for wide and slow channel type debris flow interception-guidance-drainage stone separation as claimed in claim 1, which is characterized in that: the debris flow water-stone separation comb comprises a base made of concrete filler, a sunken hemispherical water inlet cavity is formed in the upper end face of the base, a arched hemispherical comb cover covers the water inlet cavity, comb holes for water-stone separation are formed in the comb cover, and the upper ends of the drain pipes are embedded in the corresponding bases and communicated with the lower end of the water inlet cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011305417.0A CN112359776A (en) | 2020-11-20 | 2020-11-20 | Wide slow channel type debris flow blocking-guiding-draining stone separation comprehensive treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011305417.0A CN112359776A (en) | 2020-11-20 | 2020-11-20 | Wide slow channel type debris flow blocking-guiding-draining stone separation comprehensive treatment system |
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| CN112359776A true CN112359776A (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011305417.0A Pending CN112359776A (en) | 2020-11-20 | 2020-11-20 | Wide slow channel type debris flow blocking-guiding-draining stone separation comprehensive treatment system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2734820Y (en) * | 2004-10-27 | 2005-10-19 | 陈洪凯 | Mud-rock flow blocking, gathering and discharging comprehensive control structure |
| US20160312425A1 (en) * | 2014-01-01 | 2016-10-27 | Institute Of Mountain Hazards And Environment Chinese Academy Of Sciences | Debris flow drainage channel with step pool structure and its applications |
| CN209907317U (en) * | 2019-05-15 | 2020-01-07 | 四川大学 | A divide and manage system for mud-rock flow prevention and cure engineering |
| CN111335272A (en) * | 2020-03-16 | 2020-06-26 | 兰州理工大学 | Ground anchor beam string beam type debris flow grid dam and construction method thereof |
-
2020
- 2020-11-20 CN CN202011305417.0A patent/CN112359776A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2734820Y (en) * | 2004-10-27 | 2005-10-19 | 陈洪凯 | Mud-rock flow blocking, gathering and discharging comprehensive control structure |
| US20160312425A1 (en) * | 2014-01-01 | 2016-10-27 | Institute Of Mountain Hazards And Environment Chinese Academy Of Sciences | Debris flow drainage channel with step pool structure and its applications |
| CN209907317U (en) * | 2019-05-15 | 2020-01-07 | 四川大学 | A divide and manage system for mud-rock flow prevention and cure engineering |
| CN111335272A (en) * | 2020-03-16 | 2020-06-26 | 兰州理工大学 | Ground anchor beam string beam type debris flow grid dam and construction method thereof |
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Application publication date: 20210212 |
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