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

Turn off MathJax

Article Contents

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

PDF( 9950 KB)

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

FullText(HTML)

References(16)

References

[1]	ITO T, MATSUI T, HONG W P. Design Method for the Stability Analysis of the Slope with Landing Pier[J]. Soils and foundations, 1979, 19(4):43-57.
[2]	CAI F, UGAI K. Response of Flexible Piles Under Laterally Linear Movement of the Sliding Layer in Landslides[J]. Canadian Geotechnical Journal, 2003, 40(1):46-53.
[3]	孙书伟, 朱本珍, 马惠民, 等.微型桩群与普通抗滑桩抗滑特性的对比试验研究[J]. 岩土工程学报, 2009, 31(10):1564-1569.
[4]	陶志平, 周德培.用抗滑桩整治滑坡地段隧道变形的模型试验研究[J]. 岩石力学与工程学报, 2004, 23(3):457-460.
[5]	陶志平, 周德培.滑坡地段隧道变形整治中抗滑桩的设计方法[J]. 山地学报, 2003, 21(5):620-623.
[6]	郑颖人, 赵尚毅.有限元强度折减法在土坡与岩坡中的应用[J]. 岩石力学与工程学报, 2004, 23(19):3381-3388.
[7]	马惠民, 吴红刚.隧道-滑坡体系的研究进展和展望[J]. 地下空间与工程学报, 2016, 12(2):522-530.
[8]	蒋良潍, 黄润秋, 蒋忠信.黏性土桩间土拱效应计算与桩间距分析[J]. 岩土力学, 2006, 27(3):445-450.
[9]	周德培, 肖世国, 夏雄.边坡工程中抗滑桩合理桩间距的探讨[J]. 岩土工程学报, 2004, 26(1):132-136.
[10]	孙书伟, 朱本珍, 马惠民.框架微型桩结构抗滑特性的模型试验研究[J]. 岩石力学与工程学报, 2010, 29(增刊1):3039-3044.
[11]	刘洪佳, 门玉明, 李寻昌, 等.悬臂式抗滑桩模型试验研究[J]. 岩土力学, 2012, 33(10):2960-2966.
[12]	欧孝夺, 唐迎春, 崔伟, 等.h型抗滑桩模型试验及数值模拟[J]. 岩石力学与工程学报, 2012, 31(9):1936-1943.
[13]	魏作安, 李世海, 赵颖.底端嵌固桩与滑体相互作用的物理模型试验研究[J]. 岩土力学, 2009, 30(8):2655-2659.
[14]	雷文杰, 郑颖人, 王恭先, 等.沉埋桩加固滑坡体模型试验的机制分析[J]. 岩石力学与工程学报, 2007, 26(7):1347-1355.
[15]	储召军, 石少卿, 孙建虎, 等.基于模型试验的桩间距对组合式钢管抗滑桩抗滑效果的影响分析[J]. 岩土力学, 2018, 39(3):848-853 , 862.
[16]	戴自航.抗滑桩滑坡推力和桩前滑体抗力分布规律的研究[J]. 岩石力学与工程学报, 2002, 21(4):517-521.