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Excavation construction method and protection system for deep cutting near railway business line

A protection system and construction method technology, applied in excavation, protective equipment, infrastructure engineering, etc., can solve the problems of construction progress and efficiency, imperfect construction methods, and entry of dangerous rocks and rocks, so as to improve safety and facilitate on-site construction. Construction operation, effect of ensuring construction and operation safety

Active Publication Date: 2022-07-12
CHINA RAILWAY DESIGN GRP CO LTD
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Problems solved by technology

[0004] The present invention aims at that when the newly-built high-speed railway construction site is a deep cutting, the existing railway business lines parallel to it are distributed on both sides of the newly-built line. Improper type and improper construction method will lead to dangerous rockfall generated by excavation entering the existing railway business line, resulting in safety accidents. Problems affecting construction progress and efficiency

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  • Excavation construction method and protection system for deep cutting near railway business line
  • Excavation construction method and protection system for deep cutting near railway business line
  • Excavation construction method and protection system for deep cutting near railway business line

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Embodiment Construction

[0040]The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] see Figure 1 to Figure 9 , this embodiment provides a protection system for deep cutting excavation adjacent to a railway business line, including a protection system for low and low slope sections, a protection system for high and steep sections of side slopes, and a protection system for stone blocking channels. The protection system is set in the low and low section of the excavated side slope adjacent to the railway business line, the protection system in the high and steep section of the s...

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Abstract

The invention discloses a deep cutting excavation construction method and protection system close to a railway business line, and relates to the technical field of high-speed railway deep cutting construction. The construction method comprises the steps that firstly, a slope low section protection system is established in a slope low section excavated close to the railway business line; a slope high and steep section protection system is established in a slope high and steep section excavated close to the railway business line; after the slope low section protection system and the slope high and steep section protection system are established, stone blocking channels are excavated step by step; after the stone blocking channel is excavated and formed, high and low section cutting is excavated step by step in a layered mode, and when each layer of cutting is excavated, excavation is conducted from the two sides of the stone blocking channel to the interior of the stone blocking channel. According to the construction method, site construction operation is facilitated, the requirements of various safety protection levels are met, normal operation of the existing railway business line is not affected, construction safety is improved, the construction period is shortened, cost is reduced, and economic benefits are remarkable.

Description

technical field [0001] The invention relates to the technical field of high-speed railway deep cutting construction, in particular to a deep cutting construction method and a protection system adjacent to a railway business line. Background technique [0002] As my country is building the world's largest and most modernized high-speed railway network, the high-speed railway engineering construction technology that adapts to the complex and changeable geological and topographical conditions in my country is gradually developing and improving. Among the high-speed railway projects under construction, there are many new high-speed railway lines and existing railway business lines that are parallel, spanned, and drilled down. The construction is difficult and the safety risk is high. [0003] Due to poor geological conditions in mountainous areas, broken rock mass, severe weathering, development of joints and fissures, and the existence of side slopes and other unfavorable geol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D5/76E01F7/04
CPCE02D17/202E02D5/76E01F7/045Y02A10/23
Inventor 杨烨吕阳曾晓辉袁爱庆李宏刚张劲松张晴马振海王春田刘光烨李鑫曹太平彭东辉李辉
Owner CHINA RAILWAY DESIGN GRP CO LTD
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