CN205804374U - A kind of vertical shaft is utilized to block the device of trees - Google Patents

Abstract

The utility model discloses and a kind of utilize vertical shaft to block the device of trees.Groove section (1), vertical shaft screening stage (2), sliding section of blocking (3) and drift wood is returned to stop silt field (4) including the arc from top to bottom arranged along hillside (8)；Vertical shaft screening stage is provided with vertical shaft (7), and the well head of vertical shaft is equipped with and laterally screens beam (5) and vertically screen beam (6).This utility model is blocked the device of trees by increasing pit mouth, makes trees be stranded in drift wood and stops in silt field, causes the blocking of vertical shaft, inefficacy preventing trees and mud-rock flow from mixing.With raising vertical shaft, the row of mud-rock flow is led treatment effect, it is ensured that downstream building and the safety of the person.This utility model obtains significant effect by less input, has dissemination widely.

Description

A kind of vertical shaft is utilized to block the device of trees

Technical field

This utility model relates to a kind of utilizing vertical shaft to block the device of trees, belongs to Controlling Debris Flow field of engineering technology.

Background technology

Mud-rock flow is in the dangerously steep area of the landform such as mountain area or other cheuch deep gullies, due to heavy rain, severe snow or other are natural The landslide that disaster causes, carries a large amount of silt and stone and forms mud-rock flow along massif downslide.Such as on August 7th, 2010 The especially big mud-rock flow in Zhouqu County, Gansu, Guizhou Province on the 6th June in 2011 the especially big mud-rock flow in Wangmo County and on June 28th, 2012 Sichuan cool The especially big mud-rock flow in mountain has not only destroyed by rush of water the means of transportation such as highway, railway, bridge, and serious threat villages and small towns and the safety in campsite, gives The people's lives and property brings about great losses.

The measure administering mud-rock flow at present mainly has following several form: one is the form using debris dam: to retain mud Thick boulder in rock glacier is main, weakens the flood peak of mud-rock flow, and debris dam both can intercept mud-rock flow, again can be during flood Not become silted up by the silt in flood and bury, reduce the workload of desilting, mud-rock flow develops into high sand-containing flood by after debris dam, then leads to Cross flume by flood carrying-off from the side, it is ensured that downstream building and the safety of the person.Two is to use dregs-blocking dam to add drain cavern Mode, utilizes dregs-blocking dam to block large particulate matter, is changed into by mud-rock flow and only utilizes drain cavern by mud containing after fine grain flood Rock glacier carrying-off, it is ensured that downstream building and the safety of the person；Three is to use dregs-blocking dam to add vertical shaft to add the form of drain cavern, and utilization is blocked Slag dam is blocked large particulate matter, is changed into by mud-rock flow only containing fine grain flood, and mud-rock flow is imported and sluices by recycling vertical shaft Hole, it is ensured that downstream building and the safety of the person.

Thick trees occur frequently in landslide, even in shallow failure, and the low frequency or 200 met at 100 years Under the extremely low frequency condition of raining that year one meets, substantial amounts of landslide may be induced, produce substantial amounts of trees and drift about at mud-rock flow table Face.Trees usually cause locally even in large-area blocking in the motion of mud-rock flow.On June 6th, 1 Guizhou Province There is the rainfall met in 200 years in Wangmo County, induces substantial amounts of shallow failure, and substantial amounts of trees plug street, also plug The underground river, underground of downstream 3, Wangmo County town km, causes backwater to flood and is in the Le Wang town of opening to reach 5m deep.Cause These trees are the biggest threats of the blocking vertical shaft caused, and intercepting trees is exactly one of the most important effect of engineering of blocking.

Summary of the invention

The purpose of this utility model is, it is provided that a kind of utilize vertical shaft to block the device of trees.Main purpose is to intercept mud The trees drifted about in rock glacier top, prevent trees blocking vertical shaft from causing exhaust system to lose efficacy, and after exhaust system loses efficacy, trees can be perpendicular Forming large-area blocking before well top and dregs-blocking dam, trees eventually cross dregs-blocking dam, threaten downstream building and person peace Entirely.

The technical solution of the utility model:

A kind of utilize vertical shaft to block the device of trees, return groove section, vertical shaft to sieve including the arc from top to bottom arranged along hillside Selections, sliding section of blocking and drift wood stop silt field；Vertical shaft screening stage is provided with vertical shaft, and the well head of vertical shaft is equipped with and laterally screens beam and erect To screening beam.

In aforementioned means, described arc returns groove section to be the arc bell mouth shape groove dug on hillside, arc bell mouth shape The little head end of groove is connected with vertical shaft.

In aforementioned means, described in sliding section of blocking be one section of smooth inclined-plane, smooth inclined-plane is 15 degree with the angle of horizontal plane； The upper end on smooth inclined-plane is connected with the laterally screening beam of Shaft bank, and the lower end on smooth inclined-plane is stopped silt field with drift wood and is connected.

In aforementioned means, it is one section of flat platform that described drift wood stops silt field.

In aforementioned means, described vertical shaft screening stage and sliding section both sides of blocking are provided with guiding wall.

Compared with prior art, this utility model is blocked the device of trees by increasing pit mouth, makes trees be stranded in drift Wood stops in silt field, causes the blocking of vertical shaft, inefficacy to prevent trees and mud-rock flow from mixing.With raising vertical shaft, the row of mud-rock flow is led Treatment effect, it is ensured that downstream building and the safety of the person.This utility model obtains significant effect by less input, tool There is dissemination widely.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the longitudinal profile schematic diagram of Fig. 1；

Fig. 3 is the top view of Fig. 1.

Being labeled as in figure: 1-arc return groove section, 2-vertical shaft screening stage, 3-to block to stop silt field, 5-horizontal for sliding section, 4-drift wood Beam, 7-vertical shaft, 8-hillside, 9-arc bell mouth shape groove, the smooth inclined-plane of 10-, 11-is vertically screened smooth flat to screening beam, 6- Platform, 12-guide wall.

Detailed description of the invention

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings, but not as new to this practicality Any restriction of type.

Embodiment

A kind of vertical shaft is utilized to block the device of trees, as Figure 1-3, including the arc from top to bottom arranged along hillside 8 Groove section 1, vertical shaft screening stage 2, sliding section 3 of blocking and drift wood is returned to stop silt field 4；Vertical shaft screening stage 2 is provided with vertical shaft 7, the well head of vertical shaft 7 It is equipped with laterally screening beam 5 and vertical screening beam 6.Arc returns groove section 1 to be the arc bell mouth shape groove 9 dug on hillside 8, arc The little head end of shape bell mouth shape groove 9 is connected with vertical shaft 7.Sliding section 3 of blocking is one section of smooth inclined-plane 10, smooth inclined-plane 10 and water The angle of plane is 15 degree；The upper end on smooth inclined-plane 10 is connected with the laterally screening beam 5 of vertical shaft 7 well head, the lower end on smooth inclined-plane Stop silt field 4 with drift wood to be connected.It is one section of flat platform 11 that drift wood stops silt field 4.Vertical shaft screening stage 2 and sliding section 3 both sides of blocking set There is guiding wall 12.

Work process of the present utility model and principle

As Figure 1-3, when meeting low frequency at 100 years one or within 200 years one, meet the rainfall of extremely low frequency, can produce on a large scale Substantial amounts of landslide, mud-rock flow carries substantial amounts of floating trees when arc returns groove section 1, and arc returns groove section 1 to have guide effect, Arc returns groove section 1 that floating trees can be guided to arrive vertical shaft 7 well head along entering vertical shaft screening stage 2, is positioned at owing to mud-rock flow is heavier Enter vertical shaft 7 bottom mud-rock flow, make the solid matter of small particle and high sand-containing flood fall into vertical shaft, led by row smoothly；And it is floating Trees on top and the longest, it is impossible to enter vertical shaft, can rush to by the sieve laterally screening beam 5 and vertical screening beam 6 is constituted Net, screened drift wood out can enter, along the downward sliding of vertical shaft screening stage 2, sliding section 3 of blocking, and is finally stranded in drift wood and stops becoming silted up In field 4.The angle of vertical shaft screening stage 2 and block sliding section 3 and horizontal plane is 15 °, and drift wood can be made to transport to drift wood along the gradient is sliding Stop silt field 4, vertical shaft will not be blocked.

Claims (5)

1. one kind utilizes vertical shaft to block the device of trees, it is characterised in that: include that the arc from top to bottom arranged along hillside (8) is returned Groove section (1), vertical shaft screening stage (2), sliding section of blocking (3) and drift wood stop silt field (4)；Vertical shaft screening stage (2) is provided with vertical shaft (7), The well head of vertical shaft (7) is equipped with and laterally screens beam (5) and vertically screen beam (6).

Device the most according to claim 1, it is characterised in that: described arc returns groove section (1) to be the arc dug on hillside (8) Bell mouth shape groove (9), the little head end of arc bell mouth shape groove (9) is connected with vertical shaft (7).

The most according to claim 2, device, it is characterised in that sliding section of blocking described in: (3) is one section of smooth inclined-plane (10) flat Whole inclined-plane (10) is 15 degree with the angle of horizontal plane；Beam (5) is laterally screened with vertical shaft (7) well head in the upper end on smooth inclined-plane (10) Connecting, the lower end on smooth inclined-plane is stopped silt field (4) with drift wood and is connected.

Device the most according to claim 3, it is characterised in that: it is one section of flat platform (11) that described drift wood stops silt field (4).

Device the most according to claim 4, it is characterised in that: described vertical shaft screening stage (2) and sliding section (3) both sides of blocking set There is guiding wall (12).