Operating railway steep slope cutting high-position dangerous rock blocking system and construction method thereof

Abstract

The invention discloses an operating railway steep slope cutting high-position dangerous rock blocking system and a construction method thereof so as to greatly improve the success rate of blocking steep slope cutting section high-position dangerous rock falling, facilitate the construction, facilitate the later maintenance, and reduce the railway operating interference in the construction processto the maximum extent. The blocking system comprises a supporting system, an anti-impact system, an overtopping prevention system and an automatic alarming device, wherein the supporting system is composed of a T-shaped supporting wall, an anti-overturning anchor cable and an energy dissipater, the T-shaped supporting wall is arranged in the pass length direction of a cutting dangerous rock section of an operating railway, the upper portion of the T-shaped supporting wall is close to the inner side of the mountain, a falling stone containing space is formed between the upper portion of the T-shaped supporting wall and the slope surface of a cutting side slope, the anti-overturning anchor cable is arranged at an interval in the road direction, the two ends of the anti-overturning anchor cable are correspondingly fixed to the T-shaped supporting wall and the cutting edge slope rock body, the energy dissipater is arranged on the anti-overturning anchor cable, the impact-resistant systemis a layered flexible building body and is arranged on the exposed surface of the T-shaped supporting wall in the falling stone containing space, the overtopping prevention system is fixedly arrangedat the top end of the T-shaped supporting wall, and the automatic alarming device is installed on the overtopping prevention system.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a dangerous rockfall retaining project of railway engineering, and is especially suitable for the reinforcement project of high-position dangerous rockfall of cuttings on steep slopes of railways. Background technique [0002] Dangerous rockfall is a common geological disaster and one of the three major geological disasters in mountainous areas. Due to the characteristics of high-speed movement, high impact energy, multiple occurrences, randomness of time and place of occurrence in a specific area, unpredictability, and complexity of the movement process, rockfall may cause traffic interruption and huge casualties and Economic losses. [0003] The traditional remediation measures for dangerous rockfall mainly include: clearing, roof reinforcement, rockfall trough, active (passive) protective net, rock blocking fence (open hole, shed hole), etc. However, in the steep s...

AI Technical Summary

Problems solved by technology

However, in the steep slope section of the railway that has been in operation, once a high-level dangerous rockfall is found, it is extremely difficult to rectify it. The traditional removal, roof reinforcement, rockfall trough, active (passive) protective net, etc. will have a negative impact on the railway operation during the implementation of the project. Great interference and security threats. In the steep terrain, these traditional measures are not suitable for implementation due to the inaccessibility of personnel and machinery. The construction of shed tunnels and open tunnels also greatly interferes with railway operations, and the cost is high. Therefore, there is an urgent need for a high-level dangerous rockfall blocking system with simple construction, little interference to railway operation, high impact resistance, and low cost.

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