Study on Landslide Mechanism and Treatment Technology in Tunnel of Sandy Cobble Stratum
American Journal of Civil Engineering
Volume 5, Issue 5, September 2017, Pages: 307-314
Received: Sep. 21, 2017; Published: Sep. 22, 2017
Views 1575      Downloads 72
Li Borong, China Communications Construction Company Limited First Highway Consultants Co., Ltd, Xi’an, China
Yao Hongzhi, China Communications Construction Company Limited First Highway Consultants Co., Ltd, Xi’an, China
Gong Juan, China Communications Construction Company Limited Third Highway Engineering Co., Ltd, Beijing, China
Article Tools
Follow on us
The steady ability of sandy pebble stratum is poor, during the tunnel construction, landslides occur frequently. In order to clarify the mechanism of landslide in sand gravel tunnel and put forward effective treatment technology, the paper takes the Gongboxia tunnel, which located in Qinghai Province, as the engineering background. In view of the landslide in tunnel, the influence factors and formation instability model are analyzed, also the comprehensive treatment technology of landslide is put forward. The results show that the geological factors are the main factors of tunnel collapse, design factors and construction factors contributed to the collapse of the tunnel collapse to a certain extent, the interaction of multiple factors; sand gravel stratum collapse mechanism belongs to loose medium caving, the instability mode is gravity collapse; based on the analysis of tunnel collapse mechanism. Put forward the "dense row of short pipe shed, three bench reservation core soil + locking anchor pipe, grouting backfill, the temporary support" comprehensive treatment technology, through on-site data reflect, have very strong practicability and pertinence. The research results can provide the material of engineering analogy for the design and construction of similar projects, and have important reference significance.
The Tunnel, Sandy Pebble Formation, Landslides, Treatment Technology
To cite this article
Li Borong, Yao Hongzhi, Gong Juan, Study on Landslide Mechanism and Treatment Technology in Tunnel of Sandy Cobble Stratum, American Journal of Civil Engineering. Vol. 5, No. 5, 2017, pp. 307-314. doi: 10.11648/j.ajce.20170505.15
Lin jiang, Wang Yong-liang. Introduction to branch wood its tunnel sandy pebble stratum construction treatment [J]. Journal of highway tunnel, 2016 (1): 57-59.
Ren Xiao-hui. Construction process of surrounding rock of tunnel crossing the sloping sandy pebble numerical analysis [D]. Dalian jiaotong university, 2013.
Leng Hao. Sandy pebble soil layer of mountain tunnel portal construction mechanics research [D]. Southwest jiaotong university, 2016.
Liu Biao. The study of stability of rock tunnel surrounding rock [D]. Southwest jiaotong university, 2014.
Song Bo. Da shan highway tunnel collapse mechanism and treatment measures of research [D]. Chengdu university of technology, 2015.
Guan Bao-shu. Tunnel project construction points set [M]. People's traffic press, 2011.
Chen Shui-mei. The roof of the underground engineering excavation adit to collapse arch shape and surface subsidence rule analysis [D]. Hefei university of technology, 2015.
Wang Yi-cai. Tunnel project - second edition [M]. People's traffic press, 2015.
The ministry of communications of the People's Republic of China. Highway tunnel design specification [S]. Beijing: people's traffic press, 2016.
Jiang Ying-chao. The disturbance mechanism of shield tunneling in sandy pebble formation research [D]. Southwest jiaotong university, 2014.
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
Tel: (001)347-983-5186