›› 2009, Vol. 30 ›› Issue (S2): 283-286.

• Geotechnical Engineering • Previous Articles     Next Articles

Introduction to treatment of collapsible loess subgrade for Shaanxi section of Zhengzhou-Xi’an passenger dedicated railway line

WANG Ying-ming, LI Xiao-lun   

  1. China Railway roadbed department, First survey and design institute Ltd., Xi’an 710048, China
  • Received:2009-08-10 Online:2009-08-10 Published:2011-06-21

PDF (Chinese)

2463

Abstract:

Zhengzhou-Xi’an passenger dedicated railway line is 350 kilometers per hour ballastless track; its allowable subgrade settlement should be less than 15 mm after completion of the subgrade. In order to meet the requirements, the relevant tests are carried out; and the collapsible loess subgrade treatment principles are determined. And the subgrade are treated successfully by using cement-soil compacted piles, long and short piles and embedding continuous pile-board structure. The achievement will be reference to the upcoming construction of Xi’an-Baoji passenger dedicated line, Baoji-Lanzhou passenger dedicated line, Xi’an-Chengdu passenger dedicated line.

Key words: collapsible loess, passenger dedicated lines, ballastless track, treatment prediction

CLC Number: 

  • TU 444
[1] ZHU Yan-peng, DU Xiao-qi, YANG Xiao-hui, LI Hui-jun, . Research on utility tunnel foundation treated by compaction piles and post-work immersion test in self-weight collapsible loess area with large thickness [J]. Rock and Soil Mechanics, 2019, 40(8): 2914-2924.
[2] AN Peng, ZHANG Ai-jun, XING Yi-chuan, NI Wan-kui, ZHANG Bo,. Analysis of soak infiltration and deformation characteristics for thick collapsible loess in Ili region [J]. , 2017, 38(2): 557-564.
[3] NIU Ya-qiang , WANG Xu , ZHENG Jing , JIANG Dai-jun , LIU De-ren , JIANG Peng-cheng , . Experimental research on anti-seepage effect of new embankment structure of lateral-constraint and seepage control [J]. , 2015, 36(S2): 252-258.
[4] HUANG Xue-feng , YANG Xiao-hui , YIN He , LIU Zi-long , ZHOU Jun-peng,. Study of relationship between maximum collapsing depth and neutral point position of pile foundation in collapsible loess ground [J]. , 2015, 36(S2): 296-302.
[5] MEI Yuan , HU Chang-ming , WEI Yi-feng , ZHANG Wen-cui , YUAN Yi-li , Wang Xue-yan , . A centrifugal test study of the deformation of high backfill foundation in deep ravine of Q2 and Q3 loess [J]. , 2015, 36(12): 3473-3481.
[6] WANG Duan-duan, ZHOU Zhi-jun, Lü Yan-da, WEI Jin. An experimental study of influence of drilling method on the bearing capacity of pile foundation in collapsible loess area [J]. , 2015, 36(10): 2927-2933.
[7] YAO Zhi-hua ，HUANG Xue-feng ，CHEN Zheng-han ，FANG Xiang-wei，. New recognition of collapsibility evaluation and remnant collapse of loess [J]. , 2014, 35(4): 998-1006.
[8] ZHANG Wen-chao , SU Qian , LIU Ting , LIU Bao , SUN Wen，. Research on vibration characteristics of ballastless track subgrade under frost boiling at subgrade bed [J]. , 2014, 35(12): 3556-3562.
[9] SHAO Sheng-jun，YANG Chun-ming，MA Xiu-ting，LU Si. Correlation analysis of collapsible parameters and independent physical indices of loess [J]. , 2013, 34(S2): 27-34.
[10] HUANG Xue-feng ，YANG Xiao-hui，. A study progress on in-situ soaking test on collapsible loess [J]. , 2013, 34(S2): 222-228.
[11] WANG Xiao-jun ，WANG Wen-di ，LI Ming ，WEI Yong-liang ，YANG Yin-hai ，QU Yao-hui . Field test research on treatment effect of embankment foundation in class Ⅳ dead-weight collapsible loess zone along railway passenger dedicated line [J]. , 2013, 34(S2): 318-324.
[12] LIU Zheng-hong，ZHENG Jian-guo. Analysis of creep influence in long-term pile stress test [J]. , 2013, 34(5): 1391-1396.
[13] MI Hai-zhen, YANG Peng. A field experimental study of compaction piles in collapsible loess foundation [J]. , 2012, 33(7): 1951-1956.
[14] HU Chang-ming , MEI Yuan , WANG Xue-yan . Experimental research on dynamic compaction parameters of collapsible loess foundation in Lishi region [J]. , 2012, 33(10): 2903-2909.
[15] NIE Qing-ke , LIANG Jin-guo , HAN Li-jun , LI Hua-wei. Study of improvement mechanism of compaction-widening piles by tamping in collapsible loess foundation [J]. , 2011, 32(6): 1819-1823.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] TAO Gan-qiang, YANG Shi-jiao, REN Feng-yu. Experimental research on granular flow characters of caved ore and rock[J]. , 2009, 30(10): 2950 -2954 .
[2] ZHANG Wen-jie，CHEN Yum-min. Pumping tests and leachate drawdown design in a municipal solid waste landfill[J]. , 2010, 31(1): 211 -215 .
[3] GONG Wei-li, AN Li-qian, ZHAO Hai-yan, MAO Ling-tao. Multiple scale characterization of CT image for coal rock fractures based on image description[J]. , 2010, 31(2): 371 -376 .
[4] WAN Zhi, DONG Hui, LIU Bao-chen. On choice of hyper-parameters of support vector machines for time series regression and prediction with orthogonal design[J]. , 2010, 31(2): 503 -508 .
[5] SUN Xi-yuan, LUAN Mao-tian, TANG Xiao-wei. Study of horizontal bearing capacity of bucket foundation on saturated soft clay ground[J]. , 2010, 31(2): 667 -672 .
[6] WANG Ming-nian, GUO Jun, LUO Lu-sen, Yu Yu, Yang Jian-min, Tan Zhon. Study of critical buried depth of large cross-section loess tunnel for high speed railway[J]. , 2010, 31(4): 1157 -1162 .
[7] HU Yong-gang, LUO Qiang, ZHANG Liang, HUANG Jing, CHEN Ya-mei. Deformation characteristics analysis of slope soft soil foundation treatment with mixed-in-place pile by centrifugal model tests[J]. , 2010, 31(7): 2207 -2213 .
[8] TAN Feng-yi, Jiang Zhi-quan, Li Zhong-qiu, YAN Hui-he. Application of additive mass method to testing compacted density of filling material in Kunming new airport[J]. , 2010, 31(7): 2214 -2218 .
[9] CHAI Bo, YIN Kun-long, XIAO Yong-jun. Characteristics of weak-soft zones of Three Gorges Reservoir shoreline slope in new Badong county[J]. , 2010, 31(8): 2501 -2506 .
[10] YANG Zhao-liang, SUN Guan-hua, ZHENG Hong. Global method for stability analysis of slopes based on Pan’s maximum principle[J]. , 2011, 32(2): 559 -563 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd