Study on Mechanical Characteristics of Tunnel Support System in Sandy Cobble Stratum
American Journal of Civil Engineering
Volume 5, Issue 3, May 2017, Pages: 179-187
Received: Apr. 21, 2017;
Published: Apr. 22, 2017
Views 2483 Downloads 167
Gong Juan, CCCC Third Highway Engineering Co., Ltd, Beijing, China
Li Borong, CCCC First Highway Consultants Co., Ltd, Xi’an, Shaanxi China
Zhang Xu, CCCC Third Highway Engineering Co., Ltd, Beijing, China
Wang Chenzhong, CCCC Third Highway Engineering Co., Ltd, Beijing, China
Liu Yikai, CCCC Third Highway Engineering Co., Ltd, Beijing, China
Shen Mindong, CCCC Third Highway Engineering Co., Ltd, Beijing, China
Follow on us
Because the sand gravel stratum with loose structure, good gradation, easy disturbance, poor stability, deformation and other characteristics of long duration, large deformation and collapse failure phenomenon is extremely easy to cause in the tunnel construction, leading to a primary support structure for strong deformation or even destruction, serious impact on the tunnel construction and safety, is one of the main problems encountered in tunnel construction. The paper based on the engineering background of Gongboxia sand gravel stratum tunnel, studied the Sandy pebble tunnel primary support stiffness and the influence of strength characteristics, also mechanical impact characteristics of secondary lining and timing. By studying the mechanical behavior of tunnel support system, the paper puts forward the parameters of the initial support of the sand gravel tunnel, and makes clear the relationship between the stress of the supporting arch and the stress of the lining and the timing of the two lining. The research results can provide supporting design reference for sand pebble stratum tunnel and similar projects.
Tunnel, Sandy Cobble Stratum, Support, Mechanical Property
To cite this article
Study on Mechanical Characteristics of Tunnel Support System in Sandy Cobble Stratum, American Journal of Civil Engineering.
Vol. 5, No. 3,
2017, pp. 179-187.
LI Chun-Lin. All stream (highway tunne l supporting structure mechanical behavior research [D]. Chengdu university of technology, 2008.
HONG Kai-Rong. Tunnel and underground engineering in our country development present situation and prospect [J]. Journal of tunnel construction, 2015, (02): 95-107.
ZHAO Yi-Xin, JIANG Yao- Dong, MENG LEI, WANG TAO, LIU Hua-Bo. Advance grouting pipe roof support technology in the application of extremely complex fault zone [J]. Journal of mining and safety engineering, 2013, (02): 262-266.
JIA Hong-Yu. Advance the application of pipe roof bolting in tunnel engineering [J]. Railway construction technology, 2010, (3): 96-98 + 122.
HUANG Jin-Long. Sandy pebble formation underground running shed advance support of large cross section tunnel construction technology [J]. Journal of municipal technology, 2011, (3): 86-88.
MA Jing-Dong, LIAO Qiu-Lin, ZHANG Peng-Fei. DTH hammer in the big particle size of sand gravel strata fill shed the improvement and application of construction [J]. Journal of construction technology, 2015 (23): 61-61. Liu Ming. The sandy pebble stratum shallow tunnel subway tunnel construction key technology [J]. Journal of municipal technology, 2011, (02): 82-83 + 86.
MA Jing-Dong, LIAO Qiu-Lin, ZHANG Peng-Fei, PEI Bao-Quan. DTH hammer in the big particle size of sand gravel strata fill shed the improvement and application of construction [J]. Journal of construction technology, 2015 (23): 61-63.
SHEN QI. Advanced small pipe reinforcement technology in the application of sand pebble stratum tunnel construction [J]. Journal of municipal technology, 2016, (4): 104-107.
WANG Yong-Liang, LIN JIANG. Introduction to branch wood its tunnel sandy pebble stratum construction treatment [J]. Journal of highway tunnel, 2016. (01): 57-59.
LENG HAO. Sandy pebble soil layer of mountain tunnel portal construction mechanics research [D]. Southwest jiaotong university, 2016.