Impacts of confining pressure and safety thickness on water and mud inrush in weathered granite

doi:10.1080/1064119X.2018.1563253

	Impacts of confining pressure and safety thickness on water and mud inrush in weathered granite
	Liu, Jinquan 3,4; Chen, Weizhong 2; Deng, Zhiping 1; Liu, Taogen 1; Dong, Jingliang 4
刊名	MARINE GEORESOURCES & GEOTECHNOLOGY
	2020-02-07
卷号	38 期号:2 页码:144-153
关键词	Mass transfer non-Darcy flow completely weathered granite water and mud inrush confining pressure safety thickness tunnel engineering
ISSN号	1064-119X
DOI	10.1080/1064119X.2018.1563253
英文摘要	Due to the strong disintegration and water erosion of completely weathered granite, water and mud inrush disasters are apt to take place in this zone during underwater tunnel construction. The pore, compactness, seepage path length, fracture geometries and their interconnections for water and mud transfer are strongly influenced by confining pressure and waterproof-resistant slab safety thickness. In order to inspect the influence, a series of experiments based on a self-designed testing system and non-Darcy testing method were performed. The results indicated that the water and mud inrush evolution increased with the increase of confining pressure and decreased with the increase of safety thickness. In particular, the confining pressure mainly influences the initial evolution stage, and a critical safety thickness to prevent water and mud inrush is obtained. Besides, the non-Darcy testing method results shows that the water and mud inrush evolution affects the influence of non-Darcy flow. For example, while the safety thickness was smaller than the critical value, the evolution was large and unstable and its behavior transferred into nonlinear. In this case, the flow changed to non-Darcy flow.
资助项目	China National Natural Science Foundation[51809253] ; China National Natural Science Foundation[51708220] ; China National Basic Research Program, the 973 Program[2013CB036006]
WOS研究方向	Engineering ; Oceanography ; Mining & Mineral Processing
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000510576600002
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/23490]
专题	中科院武汉岩土力学所
通讯作者	Dong, Jingliang
作者单位	1.Nanchang Inst Technol, Nanchang, Jiangxi, Peoples R China 2.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan, Hubei, Peoples R China 3.Chinese Acad Sci, Quanzhou Inst Equipment Mfg, Haixi Inst, Quanzhou, Fujian, Peoples R China 4.East China Jiaotong Univ, Sch Civil Engn & Architecture, Nanchang 330013, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Jinquan,Chen, Weizhong,Deng, Zhiping,et al. Impacts of confining pressure and safety thickness on water and mud inrush in weathered granite[J]. MARINE GEORESOURCES & GEOTECHNOLOGY,2020,38(2):144-153.
APA	Liu, Jinquan,Chen, Weizhong,Deng, Zhiping,Liu, Taogen,&Dong, Jingliang.(2020).Impacts of confining pressure and safety thickness on water and mud inrush in weathered granite.MARINE GEORESOURCES & GEOTECHNOLOGY,38(2),144-153.
MLA	Liu, Jinquan,et al."Impacts of confining pressure and safety thickness on water and mud inrush in weathered granite".MARINE GEORESOURCES & GEOTECHNOLOGY 38.2(2020):144-153.