STUDY ON LOAD-BEARING CHARACTERISTICS OF PILES AND LINING STRUCTURE FOR TUNNELS IN TUNNEL-LANDSLIDE SYSTEMS WITH DIFFERENT SPACEINGS OF ANTI-SLIDE PILES

LI Tao; ZHU Baolong; LUO Bo; WANG Xiong; LI Xin

doi:10.13204/j.gyjzG20040307

Volume 51 Issue 7

Nov. 2021

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(7): 31-38

LI Tao, ZHU Baolong, LUO Bo, WANG Xiong, LI Xin. STUDY ON LOAD-BEARING CHARACTERISTICS OF PILES AND LINING STRUCTURE FOR TUNNELS IN TUNNEL-LANDSLIDE SYSTEMS WITH DIFFERENT SPACEINGS OF ANTI-SLIDE PILES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 31-38. doi: 10.13204/j.gyjzG20040307

Citation:

LI Tao, ZHU Baolong, LUO Bo, WANG Xiong, LI Xin. STUDY ON LOAD-BEARING CHARACTERISTICS OF PILES AND LINING STRUCTURE FOR TUNNELS IN TUNNEL-LANDSLIDE SYSTEMS WITH DIFFERENT SPACEINGS OF ANTI-SLIDE PILES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 31-38. doi: 10.13204/j.gyjzG20040307

Citation:

LI Tao, ZHU Baolong, LUO Bo, WANG Xiong, LI Xin. STUDY ON LOAD-BEARING CHARACTERISTICS OF PILES AND LINING STRUCTURE FOR TUNNELS IN TUNNEL-LANDSLIDE SYSTEMS WITH DIFFERENT SPACEINGS OF ANTI-SLIDE PILES[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 31-38. doi: 10.13204/j.gyjzG20040307

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STUDY ON LOAD-BEARING CHARACTERISTICS OF PILES AND LINING STRUCTURE FOR TUNNELS IN TUNNEL-LANDSLIDE SYSTEMS WITH DIFFERENT SPACEINGS OF ANTI-SLIDE PILES

doi: 10.13204/j.gyjzG20040307

LI Tao¹,
ZHU Baolong^{1,2
,
,},
LUO Bo¹,
WANG Xiong³,
LI Xin¹

1. School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China;
2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Mianyang 621010, China;
3. China Southwest Architectural Survey and Design Research Institute Ltd, Chengdu 610032, China

Received Date: 2020-04-03
Available Online: 2021-11-11

Abstract

Abstract

According to a practical project, a scale model of 1:100 was constructed, the load-bearing characteristics of anti-silde piles and lining structure for tunnels in the tunnel-landslide system with three kinds of pile spacing were studied, the top displacement of anti-slide piles, tunnel displacement, earth pressure on tunnels in landslides were analyzed. The variable regularities of the moment in pile shafts and tunnels subjected to graded loads and the support effect of anti-slide piles with different spacings for the tunnel-landslide system were observed as well. The experimental results showed as the spacing of anti-slide piles was increased from 2.08 times the length of the pile diameter to 4.16 and 6.24 times,the horizontal displacement of pile tops or tunnels, earth pressure on pile shafts or tunnels,and moment in pile shafts and tunnels gradually increased. As pile spacing was increased from 4.16 times the length of the pile diameter to 6.24 times, the increase of displacement and moment was much larger than that of pile spacing increased from 2.08 times the length of the pile diameter to 4.16 times. Thus, if the thrust of landslides was small, the pile spacing could be promoted properly. When the thrust of landslides was large, the pile spacing should be reduced to beneficially ensured the safety of lining structure for tunnels. Whether it was large or small for thrust, the spacing of anti-slide piles with 4.16 times the length of the pile diameter was a high cost-performance choice for tunnel protection.
- anti-slide pile,
- spacing,
- landslide,
- tunnel,
- lining structure,
- load-bearing characteristic

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References(16)

References

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