铁路采空区工程地质勘察及稳定性评价

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Abstract Research purposes: The coal gob area is the unfavorable geological factors affecting the railway alignment. It is very complicated and it plays an important part in the stability of railway engineering. When the railway passing through the coal gob, the evaluation is made on the influences of the railway engineering by the synthetic method of geological investigation and the protective coal pillar design of railway. It can give the reliable bases on identifying the safe borders and reinforcing the coal gob and can further meet the requirements of railway engineering subsidence control.

Research conclusions:(1)Railway geological investigation of coal gob is based on the collected coal mining date. A detailed survey is carried out with geophysical survey and drilling. It can make each other verifying and complement. Then it can identify the border of coal gob. ( 2 ) According to the depth of exposing coal seam，the attitude of coal mine can be got by space geometry relation.(3)By the result of the synthetic method for geological investigation，the evaluation is made on the stability of railway and the safe border of coal gob with the protective coal pillar design of rail- way. By goof grouting reinforcement within the scope of security boundary, it can meet the requirements of railway sub- silence control. (4) This paper can provide the guidance and reference to similar engineering geological investigation and evaluation on stability of coal gob area for railway in the future.

Key words： coal gob area high- frequency magnetetellurics sounding method stability safe border

Received: 20 November 2013

PACS:

U212.22

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	YAN Dong

Cite this article:

YAN Dong. Engineering Geological Investigation and Evaluation on Stability of Coal Gob Area for Railway[J]. 铁道工程学报, 2014, 31(4): 12-15.

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2014/V31/I4/12

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