Device for promoting landslide flow dividing and method of device

A technology for slopes and retaining walls, applied in excavation, water conservancy projects, artificial islands, etc., can solve the problems of cumbersome establishment and dismantling of retaining walls, poor technical and economic rationality, and large buried depth of anchorage sections, etc., to improve the utilization of devices rate, reducing the duration of exposure, and reducing the effect of landslide kinetic energy

Inactive Publication Date: 2021-04-09
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prevention and control of small and medium-sized landslides, the anchorage section of conventional anti-slide piles and prestressed anchor cables is too deep, and the length of piles and anchor cables can range from tens of meters to nearly 100 meters, while the establishment and dismantling of traditional retaining walls is too cumbersome. , the construction is difficult and cannot be used repeatedly, and the technical and economic rationality is poor

Method used

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  • Device for promoting landslide flow dividing and method of device
  • Device for promoting landslide flow dividing and method of device
  • Device for promoting landslide flow dividing and method of device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Such as Figure 1-3 Shown, a kind of device that promotes landslide diversion, it comprises herringbone barrier wall 1 or detachable barrier wall 2 adapting to different slope forms, said herringbone barrier wall 1 or detachable barrier wall 2 is supported on steel ingot 3 The top of the herringbone blocking wall 1 or the back of the detachable blocking wall 2 is hinged with a hydraulic damper 5, the tail of the hydraulic damper 5 is hingedly connected with the bottom support 7 through the hinge seat 6, and the herringbone blocking The two outer walls of the wall 1 or the detachable barrier wall 2 are alternately arranged with hollow hinge sleeves 4 for hinged connection of multiple barrier walls, and the hollow hinge sleeves 4 are hingedly connected by pins. By using the device with the above structure, it proposes a herringbone-shaped detachable multi-layer barrier wall for the first time. Compared with other barrier walls, this method improves the utilization rate of...

Embodiment 2

[0092] see Figure 4 , the design method of the barrier wall size of the device that promotes landslide diversion,

[0093] According to the impact mechanics model, the force exerted on the structure is divided into drag force F t , passive earth pressure F p and the resultant force F of gravity and friction in the stagnation zone gf , the resultant impact force is F n :

[0094] f n =F t +F gf +F p

[0095] According to the semi-empirical formula:

[0096] f t =ρv 1 h 1 C d A / 2

[0097] According to the indoor model test:

[0098]

[0099]

[0100] In the formula: F r is the static earth pressure; ρ is the soil density; V 1 is the volume of particle flow; C d The corrected static earth pressure; A is the cross-sectional area of ​​the particle flow; h 1 is the thickness of the particle flow; g is the gravitational acceleration; a, n are the empirical coefficients, which are a=10.8 and n=1.3 according to experience;

[0101] At present, in the design, ...

Embodiment 3

[0117] see Figure 5 , impel the use method of the device of landslide diversion, comprising the following steps:

[0118] For landslide hills with buildings below:

[0119] Step1: According to the cubic volume of the landslide and the size of the mountain, select the appropriate path and the specifications of the detachable blocking wall 2, and there must be a certain open terrain in front of the landslide;

[0120] Step2: Anchor the detachable blocking wall 2 and the anchor rod;

[0121] Step3: Fix the hydraulic damper 5 and the hinged seat 6 through the damper fixing block.

[0122] Step4: Connect the hydraulic damper 5, the hinged seat 6 and the clamping bolt at the bottom of the detachable blocking wall 2.

[0123] Step5: Connect the hinged seat 6 and the bottom support 7 with bolts;

[0124] Step6: Use anchor rods to anchor the bottom support 7 on the ground;

[0125] Step7: Install the portable water bag on the facing slope side of the detachable barrier wall 2.

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Abstract

The invention discloses a device for promoting landslide flow dividing. The device comprises a herringbone blocking wall or a detachable blocking wall which adapts to different slope body forms, the herringbone blocking wall or the detachable blocking wall is supported at the top of a steel ingot, a hydraulic damper is hinged to the back of the herringbone blocking wall or the back of the detachable blocking wall, the tail of the hydraulic damper is hinged to a bottom support through a hinge seat, hollow hinge sleeves used for hinged connection of the multiple blocking walls are arranged on the two outer side walls of the herringbone blocking wall or the detachable blocking wall in a staggered mode, and the hollow hinge sleeves are in hinged connection through pin shafts. The device is easy to operate, rapid to install and capable of being repeatedly used, the time for exposing personnel to landslide is effectively shortened, and compared with other engineering measures for treating the landslide, the device has wide engineering practice significance and economic benefits.

Description

technical field [0001] The invention relates to the technical field of prevention and control of civil engineering geological disasters, and is mainly used in an emergency defense system for landslides caused by weather and man-made, so as to ensure production and personal safety and reduce the hazards of landslides. Background technique [0002] Landslide refers to the soil or rock mass on the slope, affected by factors such as river scouring, groundwater activity, rainwater immersion, earthquake and artificial slope cutting, under the action of gravity, along a certain weak surface or weak zone, the whole or scattered The natural phenomenon of land sliding downhill. The conditions for the formation of landslides in my country are very complex, among which landform pattern, geological structure, stratum lithology, storm and flood have a fundamental controlling role, and the influence of human engineering activities is often the leading factor. Natural or artificial slopes ...

Claims

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Application Information

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IPC IPC(8): E02D17/20E02D29/02
CPCE02D17/20E02D29/02
Inventor刘杰宋瑞刘晓阳李洪亚李运舟孙荣琪孙涛李政黎照谢晓康唐洪宇石谦杜卓兴杨浩宇
OwnerCHINA THREE GORGES UNIV