|
|
|
| Application Study on Pressure Meter Test to Geotechnical Investigation of Xi′an Metro |
| REN Jian-xi ,HE Xiao-li, LIU Chao-ke,ZHANG Kun |
| Xi′an University of Science and Technology，Xi′an,Shanxi 710054,China |
|
|
|
|
Abstract Research purposes: A systematic study on pressure meter results based on geotechnical investigation of Xi'an subway No 3 Line in loess area，analysis of a reasonable method for calculating lateral pressure coefficient and horizontal foundation coefficient by the curves of pressure meter in loess area，the objective is to get accurate coefficients，and provide theoretical basis for scientifically analyzing mechanical characteristics of subway tunnel lining and design parameters.
Research conclusions:(1)The lateral pressure coefficient results of pressure meter test are quite close to that of traditional method，the result did not change significantly with depth arden，and pressure meter test takes the advantages of simple operation and economical compared with other methods，therefore it is perfectly suitable for geotechnical in-situ test in loess area.(2)The result of pressure meter test has suggested the change of horizontal foundation coefficient with soil，the soil limit pressure and deformation property parameters can be measured by pressure meter test. But it should be multiplied by 0. 3～0. 5 in calculation of horizontal foundation coefficient when used in parameter design of tunnel lining.(3)The research results will provide theoretical support for reasonable design of subway tunnel lining in loess area.
|
|
Received: 10 July 2013
|
|
|
|
|
|
[1]张喜发，张文殊.用钻孔旁压试验确定前期固结压力 [J].工程勘察，1991(3):25-26
Zhang xd'a, Zhang Wenshu. To Determine Preconsolidation Pressure by Boring Pressure Meter Tests[J]. Geotechnical Investigation and Surveying, 1991(3): 25-26.
[2]林在贯，李玉昌，任剑青.用旁压试验测定黄土的比例界限压力和变形模量[J].勘察技术，1986(2):22-25.
Lin Zaiguan, Li Yuchang，Ren Jianqing. To Determine Proportional Limit Pressure and Deformation Modulus of Loess by Pressure Meter Test [ J ].Site Investigation Science and Technology , 1986 ( 2) : 22-25.
[3]赵善锐，沈国荣.旁压模量和变形模量的关系[J].西南交通大学学报，1988（2）：8-13.
Zhao Shanrui, Shen Guorong. The Relationship between the Pressure Meter Modulus and the Deformation Modulus[J].Journal of Southwest Jiaotong University, 1988(2):8-13.
[4]王长科.用旁压试验原位测定土的强度参数[J].勘察科学技术，1992(6):25-27
Wang Changke. In-situ Determination of the Strength Parameters of Soils by Pressure Meter Test[J].Site Investigation Science and Technology , 1992 ( 6) : 25-27.
[5]王长科.饱和粘性土旁压固结试验[J]. 工程勘察，1994 (1):20-22
Wang Changke. The Pressure Meter Consolidation Test of Saturated Clay[J].Geotechnical Investigation and Surveying, 1994(1):20-22.
[6]张新兵，陈映南，姜前，等.用有限元方法分析旁压试验特征值[J]长沙铁道学院学报，1995(4):17-24
Zhang Xinbing, Chen Yingnan, Jiang Qian, etc. Analyzing the Characteristic Values of Pressure Meter Test by Using the Finite Element Method[J].Journal of Changsha Railway University , 1995 ( 4):17-24.
[7]刘祖德.论预钻式横压试验的机理分析[C]//中国土木 工程学会第四届土力学及基础工程学术会议，武汉: 1983
Liu Zude. To Discuss Mechanism Analysis of Pre- drilling Pressure Meter Test [ C ] //The Fourth Academic Conference of Soil Mechanics and Foundation Engineering of CCES，Wuhan:1983.
[8]沈国荣.旁压结果预估基础沉降和承载力[D]成都:西 南交通大学，1986
Shen Guorong. The Foundation Settlement and Bearing Capacity Prediction of Pressure Meter Results[D]. Chengdu: Southwest Jiaotong University, 1986.
[9]李克强.黄土地区开展地质勘察工作应注意的儿个问题 [J]铁道工程学报，2000(3):87-91
Li Keqiang. Several Problems Needed to be Paid Attention to for Geological Investigation and Surveying in Loess Area[J].Journal of Railway Engineering Society , 2000 ( 3) : 87-91.
[10]孙明祥，杨磊，樊耀武，等.基于不同试验手段对黄土的 结构性研究[J]铁道工程学报，2011(3):24-31
Sun Mingxiang, Yang Lei, Fan Yaowu, etc. Study on Loess Structure with Different Test Methods[J]. Journal of Railway Engineering Society,2011(3):24- 31.
[11]周飞飞.原状湿陷性黄土的结构性本构模型[J]铁道 工程学报，2012(4):13-17
Zhou Feifei. Non-linear Constitutive Model for Intact Collapsible Loess[J].Journal of Railway Engineering Society , 2012 ( 4 ):13-17.
|
|
|
|
2013, Vol. 30 
