浅埋松软地层管棚注浆施工引起地表沉降分析

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Abstract The two-dimensional computation models have been built by using the ADINA finite element program. Examples of seepage tunnels of shallow and surrounding soft rock of portal section of three-holes frame constructions are presented；and numerical analyses of the ground deformation response caused by tunnel excavation have been conducted under the condition of no support，grouting，pipe roof and grouting with pipe-roof，respectively. The minimum ground settlement is caused by grouting with pipe-roof，followed by pipe roof support and grouting support. The deformations of pipe roof and ground settlements caused by tunnel excavation are monitored in field and have been effectively controlled. The research results reveal that support effect of grouting with pipe-roof is very good in shallow soft stratum. Based on the theory of numerical calculation，the application of grouting with pipe-roof to shallow soft stratum is feasible. The validity and reliability of pipe-roof grouting are verified.

Key words： tunnelling engineering shallow tunnels soft stratum pipe-roof grouting ground settlement numerical test field monitoring

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	Articles by authors
	ZHANG Xiangdong
	LI Qingwen
	LI Guixiu
	GU Xuebing

Cite this article:

ZHANG Xiangdong,LI Qingwen,LI Guixiu, et al. ANALYSIS OF GROUND SETTLEMENT CAUSED BY PIPE-ROOF GROUTING FOR TUNNEL CONSTRUCTION IN SHALLOW SOFT STRATUM[J]. , 2013, 32(s2): 4091-4097.

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/4091

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