工程地质学报
     首页 |  期刊简介 |  编委会 |  投稿指南 |  期刊订阅 |  留言板 |  联系我们 |  广告合作 |  会议信息 |  English
工程地质学报  2017, Vol. 25 Issue (6): 1617-1623    DOI: 10.13544/j.cnki.jeg.2017.06.026
地质工程实践 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
昆明泥炭质土地铁盾构等代层压缩模量试验研究
孟祥连1, 赵晓彦2, 范智浩2, 张士强3, 齐磊4
1. 中铁第一勘察设计院集团有限公司 西安 710043;
2. 西南交通大学地球科学与环境工程学院 成都 610031;
3. 中国铁建十六局集团北京轨道交通工程建设有限公司 北京 101100;
4. 西藏大学工学院 拉萨 850000
EXPERIMENTAL STUDY ON COMPRESSIVE MODULUS OF METRO SHIELD GENERATION ZONE IN KUNMING CUMULOSOLS
MENG Xianglian1, ZHAO Xiaoyan2, FAN Zhihao2, ZHANG Shiqiang3, QI Lei4
1. China Railway First Survey and Design Institute Group Co., Ltd., Xi'an 710043;
2. Faculty of Geoscience and Environmental Engineering at Southwest Jiaotong University, Chengdu 610031;
3. Beijing Rail Transport Engineering Construction Co., Ltd. of China Railway 16 th Bureau Group Co., Ltd., Beijing 101100;
4. Tibet University Institute of Technology, Lhasa 850000
 全文: PDF (2333 KB)   HTML( )   输出: BibTeX | EndNote (RIS)      背景资料
摘要 在城市地铁盾构施工过程中,地表沉降是重要的工程问题之一,不但影响地铁隧道的安全建设,更直接关系到周边紧临建筑物的正常运营。等代层压缩模量是控制地表沉降的关键参数,特别是软弱土层中的地铁盾构。等代层注浆材料与土体的混合比例关系、注浆后的养护时间是直接影响其压缩模量的重要因素。本文依托昆明地铁3号线石咀段泥炭质土层盾构工程,进行注浆材料与泥炭质土的不同比例关系及不同养护时间条件下的压缩模量试验研究。探索泥炭质土层中盾构等代层中浆体与土体的合理比例关系,并提出注浆后何时能达到预期的等代层压缩模量,为泥炭质土地区地铁盾构施工提供参考。
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
关键词泥炭质土   地铁盾构   等代层   压缩模量     
Abstract: In the construction process of city metro shield, the ground surface subsidence is one of the most important engineering problems, which not only affects the safety of the subway tunnel construction, but also directly relates to the normal operation of the surrounding buildings. The compressive modulus of generation zone is one of the key shield parameters that control the ground surface subsidence, especially to the shield tunneling in soft soil zone. The mixing proportion of the generation zone grouting material and the soil, and the waiting time after grouting are the important factors that affect the compressive modulus. This paper is based on the cumulosol shield tunneling project of Kunming Metro Line 3 Shiju section, with a compressive modulus test of mixtures which have different proportions of grouting materials and cumulosol and different curing times. The reasonable proportion relationship between the shield generation zone paste in the cumulosol zone and the soil are explored. The time to get expected compressive modulus of generation zone after grouting is put forward, which can provide reference for the shield tunneling construction in the cumulosol area.
Key wordsCumulosol   Metro shield   Generation zone   Compressive modulu   
收稿日期: 2017-05-17;
基金资助:

国家自然科学基金项目(41541022,41672295)资助

通讯作者: 赵晓彦(1977-),男,博士,副教授,博士生导师,研究方向为特殊岩土工程.Email:xyzhao2@swjtu.cn     E-mail: xyzhao2@swjtu.cn
作者简介: 孟祥连(1966-),男,教授级高级工程师,研究方向为特殊土工程.Email:mengxianglian9@sohu.com
引用本文:   
. 昆明泥炭质土地铁盾构等代层压缩模量试验研究[J]. 工程地质学报, 2017, 25(6): 1617-1623.
. EXPERIMENTAL STUDY ON COMPRESSIVE MODULUS OF METRO SHIELD GENERATION ZONE IN KUNMING CUMULOSOLS[J]. Journal of Engineering Geology, 2017, 25(6): 1617-1623.
 
[1] Baird A J, Gaffney S W. 2000. Solute movement in drained fen-peat:a field tracer study in a Somerest(UK)wetland[J]. Hydrological Processes, 14 (14):2489~2503.
[2] Chapman S J,Campbell C D,Fraser A R,et al. 2001. FTIR spectroscopy of peat in and bordering Scots pine woodland:relationship with chemical and biological properties[J]. Oil Biology and Biochemistry, 33 (9):1193~1200.
[3] Link R E, Gunaratne M, Stinnette P, et al. 1998. Compressibility relations for peat and organic soil[J]. Journal of Testing & Evaluation, 26 (1):1~9.
[4] Li L,Cao G Z,Zhu S N. 2012. Experiment on Improving mechanical character of dianchi peat soil in Kunming[J]. Science Technology and Engineering, 12 (11):2768~2711.
[5] Liu Y. 2014. The composition and microstructure of peat soil in Dianchi were studied for the im-pact of mechanical strength[D]. Kunming:Kunming University of Science and Technology.
[6] Ruan Y F,Liu Y D, Wang D, et al. 2003. Effect of Kunming's peat & peaty soil on the building foundation[J]. Journal of Kunming University of Science and Technology(Science and Technology), 28 (3):121~124.
[7] Scytnikova N H. 1985. The chemical composition and physical chemistry of peat soil[J]. Jiangxi Humic Acid,(4):53~63.
[8] Sugimoto Y, Okada K, Suzuki Y. 1999. Petrographic changes in compaction thermal treatment of recent plant materials, peat and coals[J]. Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy, 78 (3):201~210.
[9] Wang D W,Wang Q,Chen J P. 2006. Research on the distribution regularity and the engineering geological property of peat soil in Dianchi Basin[C]//Proceedings of the Second National Conference on Rock Earth and Engineering. Beijing:Science Press:821~825.
[10] Xiong E L,Ruan Y F,Liu W L. 2006. Experimental study and analysis of normalized behavior on the mechanical characteristics of peat & peaty soils in Kunming[J]. Soil Engineering and Foundation, 20 (1):53~56.
[11] Yu Q F,Gui Y,Yu Z H. 2016. Study on statistical properties of physico-mechanical index of peat soil in Dianchi[J]. Nonferrous Metals Design, 43 (4):48~57.
[12] Zhang L J,Huang X M,Wang P,et al. 2007. Micro-structure and engineering properties of peat[J]. China Journal of Highway and Transport, 20 (1):47~51.
[13] Zhao X Y,Zhang X B,Fan Z H,et al. 2017. Deciding of Shield Parameters from Controlling Ground Settlements[J]. Journal of Engineering Geology, 25 (2):300~307.
[14] Zheng G,Zhang F Z,Zhang T Q,et al. 2016. Disturbance of shield tunnel excavation and compensation grouting to surrounding soil:laboratory tests and numerical simulations[J]. Chinese Journal of Geotechnical Engineering, 38 (10):1741~1753.
[15] 刘瑜. 2014. 滇池泥炭土物质组分和微观结构对力学强度影响研究[D]. 昆明:昆明理工大学.
[16] 王丹微,王清,陈剑平. 2006. 滇池盆地泥炭土分布规律及工程地质特性研究[C]//第二届全国岩土与工程学术大会论文集. 北京:科学出版社:821~825.
[1] 侯晓亮, 谭晓慧, 刘泽勇, 田龙裕. 黏性土压缩指标及其与饱和度的关系[J]. 工程地质学报, 2017, 25(5): 1336-1343.
[2] 赵晓彦, 张肖兵, 范智浩, 张志学, 张士强, 崔向寒. 面向地表沉降控制的地铁盾构参数研究[J]. 工程地质学报, 2017, 25(2): 300-307.
[3] 张士强. 昆明地铁盾构下穿昆明火车站沉降控制施工参数研究[J]. 工程地质学报, 2016, 24(s1): 514-518.
[4] 夏玉斌, 曹中兴, 王清. 滨海区海相沉积土压缩模量的试验研究[J]. 工程地质学报, 2013, 21(3): 464-469.
[5] 姬付全, 经绯, 刘志彬, 居俊. 孔压静力触探(CPTU)确定地基土压缩模量方法研究[J]. 工程地质学报, 2011, 19(6): 882-886.
版权所有 © 2009 《工程地质学报》编辑部
地址:北京9825信箱  邮政编码:100029
电话:010-82998121 ,82998124   传真:010-82998121 Email:gcdz@mail.igcas.ac.cn