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Self-cleaning shed-hole system combined with flexible net and cushion layer and its design method

A cushioning layer and flexible cushioning technology is applied in the field of combined self-cleaning shed system of flexible net and cushioning layer. Ingenious effects

Active Publication Date: 2021-08-17
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the harsh road conditions, it is very inconvenient to clean and maintain the system

Method used

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  • Self-cleaning shed-hole system combined with flexible net and cushion layer and its design method
  • Self-cleaning shed-hole system combined with flexible net and cushion layer and its design method
  • Self-cleaning shed-hole system combined with flexible net and cushion layer and its design method

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Experimental program
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specific Embodiment 1

[0061] combine Figure 3-4 , the protective energy level of the design method of the combined self-cleaning shed cave system using a flexible net and cushion layer of the present invention is 1000kJ, and the specific process is as follows:

[0062] 1. Determine the trajectory of the rockfall

[0063] According to the geological survey, three-dimensional scanning of the mountain was carried out to determine the initial position of the dangerous rockfall. At the same time, the finite element simulation was used to calculate the trajectory of the falling rock, and the velocity v=25m / s when the falling rock hit the system was obtained, and the angle between it and the horizontal plane was θ=85. °;

[0064] 2. System selection and layoutα

[0065] According to the movement trajectory of the falling rock, the slope of the mountain, the width of the road, the protection energy level and the expected rebound range of the falling rock, the protection energy level of the flexible buff...

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Abstract

The invention provides a self-cleaning shed cave system combined with a flexible net and a cushion layer and a design method thereof, including two parts: a flexible buffer system and a rigid buffer system. The flexible buffer system includes a support rope and a metal flexible net, and the support rope Including horizontal support ropes and vertical support ropes; rigid buffer system includes cushion layers, steel trusses and columns. After the self-cleaning shed cave system designed by the invention is impacted by falling rocks, the flexible buffer system can be used as the first line of defense to greatly weaken the impact kinetic energy of the falling rocks, and then throw the falling rocks at a low speed; the rigid buffer system is the second line The main function of the defense line is to guide the rolling of falling rocks thrown at low speed, so that they escape the protection area, avoid the accumulation of falling rocks, and solve the practical problems such as the difficulty of cleaning and maintenance of traditional flexible protection systems.

Description

technical field [0001] The invention relates to the technical field of slope protection, in particular to a self-cleaning shed-cave system combined with a flexible net and a cushion layer and a design method thereof. Background technique [0002] The mountainous area of ​​mainland China accounts for about two-thirds of the country's land area. Mountain disasters such as falling rocks and rockslides occur frequently, posing a serious threat to people's livelihood and the normal operation of infrastructure. Traditional rockfall disaster prevention and control measures mainly include reinforced concrete shed tunnel system and flexible protective net system. Reinforced concrete sheds usually require a large area, and usually one side is close to a steep mountain, and the other side is close to a deep valley, and the road is narrow, which makes the construction of reinforced concrete sheds difficult and the foundation excavation difficult. There are no suitable site conditions. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01F7/04
CPCE01F7/045
Inventor 齐欣余志祥许浒赵雷乔杨锴
Owner SOUTHWEST JIAOTONG UNIV