Method and device for trenchless reinforcement of existing railway roadbed

An existing railway, trenchless technology, applied in the direction of roads, roads, buildings, etc., can solve the problems of interfering with traffic, low reinforcement efficiency, and insignificant effect.

Inactive Publication Date: 2013-07-31
高速铁路轨道技术国家重点实验室(中国铁道科学研究院) +1
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  • Application Information

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Problems solved by technology

[0003] In order to overcome the current situation of low reinforcement efficiency, inconspicuous effect and interference with traffic of the existing railway subgrade, the present invention combines the characteristics of the non-excavation technology and...

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  • Method and device for trenchless reinforcement of existing railway roadbed
  • Method and device for trenchless reinforcement of existing railway roadbed
  • Method and device for trenchless reinforcement of existing railway roadbed

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Embodiment Construction

[0010] The method and equipment are composed of two systems: non-excavation technology and equipment, and high-pressure jet grouting reinforcement technology and equipment. During on-site reinforcement construction, firstly, according to the actual conditions such as the size and degree of roadbed disease distribution and site conditions, select the appropriate non-excavation drilling form, rotation angle and guiding form, and use appropriate hole-forming drill bits, drill pipes and guiding devices , input the pre-designed drilling trajectory into the control system, during the actual drilling process, the trajectory parameters of each measuring point in the borehole will be input into the control system, and the actual trajectory diagram will be drawn cumulatively by the control system, The control system will automatically compare the currently drawn drilling trajectory with the designed trajectory in real time, make logical judgments, realize real-time monitoring and correct...

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Abstract

The invention discloses a method and a device for trenchless reinforcement of an existing railway roadbed. The method and the device for selective reinforcement in a roadbed without influence on driving are designed by combination of a trenchless technology and a high-pressure jet grouting method. Through the trenchless drilling technology, holes are drilled in the existing railway roadbed, and along drilling tracks, high-pressure jet grouting reinforcement on the roadbed is carried out. Through creative development of a drilling track automatic-control system, a clear and convenient man-machine conversation operating platform is realized and is used for real-time monitoring and correction of the drilling tracks. Through reconstruction of the existing high pressure rotary jet grouting device, a bending rotary jet grouting drill pipe technology is realized. Through combination of a trenchless hole-forming mode and a device structure, cooperation of a hole-forming device and the rotary jet grouting device is realized. The method and the device realize timely and accurate reinforcement for improving defects in the roadbed, guarantee traffic safety and have an important technological value and a practical meaning for railway reinforcement.

Description

technical field [0001] The invention relates to a method and equipment suitable for non-excavation reinforcement of existing railway roadbeds, in particular to a method and equipment for realizing non-excavation reinforcement of roadbed diseased sections for existing railways without disturbing traffic. The method and equipment can also realize the reinforcement treatment of the underlying diseases of overlying structures such as roads under the condition of non-excavation. Background technique [0002] Heavy-haul railway transportation has been widely valued by railways all over the world because of its large transportation capacity, high efficiency and low transportation cost. It has become the most economical and effective transportation method for bulk cargo. With the increase of axle load and transport capacity, higher requirements are placed on the strength and deformation characteristics of the subgrade soil, while the filler performance of some sections of the existi...

Claims

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Application Information

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IPC IPC(8): E01C3/04
Inventor 叶阳升张千里蔡德钩马伟斌王立军程远水朱忠林陈锋刘杰姚建平李中国程爱君吴敏敏王仲锦付兵先郭小雄牛亚彬
Owner 高速铁路轨道技术国家重点实验室(中国铁道科学研究院)
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