Experimental study oF Horizontal Ultimate loading Capacity of new type Monolayer Freezing Shaft Lining
CHEN Xiaoxiang1，YANG Weihao2
(1. School of Energy Science and Engineering，Henan Polytechnic University，Jiaozuo，Henan 454000，China； 2. State Key Laboratory for Geomechanics and Deep Underground Engineering，China University of Mining and Technology，Xuzhou，Jiangsu 221008，China)
Abstract：Aiming at the situation that the effective excavated section utilization reduced sharply in composite shaft lining，a new type monolayer shaft lining structure was put forward. To obtain horizontal bearing capacity of this kind of shaft lining，similar simulation tests were used to study horizontal ultimate bearing capacity and deformable character on three shafts. The results indicate that：vertical strain and circumferential strain as well as vertical displacement of shaft lining better consistent with vertical stress，no mechanical hysteresis appeared；vertical pressure loading on shaft wall can be considered as uniform；the concrete strength is independent of poisson ratio，but relate to the elasticity coefficient；vertical maximum positive displacement and maximum vertical load before confining pressure being loaded related positively；vertical maximum positive displacement is almost proportional to the ratio of horizontal displacement and most horizontal load positively；Ignoring vertical pressure，radial displacement is proportional to the level stress positively；the inside compression strain is much larger than the sidewall lateral when shaft lining is crushed，the total inside compression strain is between －2 000 and －2 500 ，sometimes reaches －3 000 ，even exceeding；ultimate bearing capacity of new monolayer freezing shaft lining is higher than common concrete. Researching results have great significance in perfecting design theories of the new type of monolayer shaft lining and guiding it constructing fast and scientifically.
虞相，王正廷，苏立凡.我国地层冻结技术的新发展[C]//王长生.地层冻结工程技术与应用——中国地层冻结工程40年论文集.北京：煤炭工业出版社，1995：123-125.(YU Xiang，WANG Zhengting，SULifan.New development of China ground freezing technique[C]//WANG Changshenged.Freezing Engineering Technology and Application of Ground Proceedings of Forty Years¢Freezing Engineering of Ground in China. Beijing：China Coal Industry Publishing House，1995：123-125.(in Chinese))
[2]
杨维好，黄家会，王衍森. 带接茬板的单层井壁及其施工方法：中国，200610088128.3[P]. 2006-6-27[2011-8-15].(YANG Weihao，HUANG Jiahui，WANG Yansen. One structure of single layer shaft lining with water stops in new-old concrete interface and its construction method：China，200610088128.3[P].2006-6-27[2011-8-15].(in Chinese))
[3]
陈晓祥. 新型单层冻结井壁关键技术与设计理论研究[博士学位论文][D]. 徐州：中国矿业大学，2007.(CHEN Xiaoxiang. Research on the key technology and design theory of the new type of monolayer freezing shaft lining[Ph.D. Thesis][D]. Xuzhou：China University of Mining and Technology，2007.(in Chinese))
[4]
张驰，杨维好，齐家根，等. 基岩冻结新型单层井壁施工技术与监测分析[J]. 岩石力学与工程学报，2012，31(2)：337-346.(ZHANG Chi，YANG Weihao，QI Jiagen，et al. Construction technology and monitoring analysis of a new single layer shaft lining in deep aqueous bedrock during freezing sinking[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(2)：337-346.(in Chinese))
[5]
崔广心，杨维好，吕恒林. 深厚表土中的冻结壁与井壁[M]. 徐州：中国矿业大学出版社，1999：142-145.(CUI Guangxin，YANG Weihao，LUHenglin. Frozen wall and shaft lining in deep alluvium[M]. Xuzhou：China University of Mining and Technology Press，1999：142-145.(in Chinese))
[6]
韩涛，杨维好，任彦龙，等.钢骨混凝土井壁水平极限承载特性的试验研究[J].采矿与安全工程学报，2011，28(2)：181-186.(HAN Tao，YANG Weihao，REN Yanlong，et al. Horizontal ultimate bearing capacity of encased steel concrete shaft lining[J].Journal of Mining andSafety Engineering，2011，28(2)：181-186.(in Chinese))
[7]
王建中.C80-C100高强混凝土井壁力学特性研究[硕士学位论文][D].徐州：中国矿业大学，2006.(WANG Jianzhong. Research on the mechanical characteristics of C80-C100 high strength concrete shaft lining[M. S.Thesis][D]. Xuzhou：China University of Mining and Technology，2006.(in Chinese))
[8]
王衍森.特厚冲积层中冻结井外壁强度增长及受力与变形规律研究[博士学位论文][D].徐州：中国矿业大学，2005.(WANG Yansen. Study of the law of strength increasing，load and deformation of outer shaft lining during freezing sinking in deep alluvium[Ph.D. Thesis][D].Xuzhou：China University of Mining and Technology，2005.(in Chinese))
[9]
中华人民共和国国家标准编写组.GB50010—2002混凝土结构设计规范[S]. 北京：中国建筑工业出版社，2007.(The National Standards Compilation Group of People¢s Republic of China.GB50010—2002Code for design of concretes[S].Beijing：China Building Industry Press，2007.(in Chinese))
[10]
荣传新，程桦.冻结井钢筋混凝土弧形板井壁力学特性研究[J].岩土力学，2006，27(2)：193-198.(RONG Chuanxin，CHENG Hua. Study on mechanical characteristics of reinforced concrete arc shaft wall in frozen shaft[J].Rock and Soil Mechanics，2006，27(2)：193-198.(in Chinese))
[11]
姚直书，程桦，孙文若.深厚表土层中高强复合井壁结构的试验研究[J].岩土力学，2003，24(5)：739-743.(YAO Zhishu，CHENG Hua，SUN Wenruo. Experimental study on high strength composite shaft lining in deep alluvium[J]. Rock and Soil Mechanics，2003，24(5)：739-743.(in Chinese))
[12]
姚直书.巨厚冲积层钢筋钢纤维高强混凝土井壁试验研究[J].岩石力学与工程学报，2005，24(7)：1253-1258.(YAO Zhishu. An experimental study on steel fiber reinforced high strength concrete shaft lining in deep alluvium[J].Chinese Journal of Rock Mechanics and Engineering，2005，24(7)：1 253-1 258.(in Chinese))
[13]
刘登攀.钢骨混凝土井壁力学特性初步研究[硕士学位论文][D].徐州：中国矿业大学，2002.(LIU Dengpan. Study preliminarily on the mechanical characteristics of the shaft lining of concrete with shape reinforcement[M. S. Thesis][D]. Xuzhou：China University of Mining and Technology，2002.(in Chinese))
[14]
王衍森，杨志江，杨宇飞，等.凿井期冻结井外壁的力学模型及水平极限承载力研究[J]. 采矿与安全工程学报，2009，26(3)：359-366.(WANG Yansen，YANG Zhijiang，YANG Yufei，et al.Mechanics model and ultimate horizontal bear capacity of outer shaft lining during freezing sinking[J].Journal of Mining andSafety Engineering，2009，26(3)：359-366.(in Chinese))
[15]
过镇海.钢筋混凝土原理[M].北京：清华大学出版社，1999：99-105.(GUO Zhenhai. Principle of reinforced concrete[M]. Beijing：Tsinghua University Press，1999：99-105.(in Chinese))
[16]
李伟政，过镇海.二轴拉压应力状态下混凝土的强度和变形试验研究[J]. 水利学报，1991，(8)：51-56.(LI Weizheng，GUO Zhenhai.Test and research on concrete strength and deformation with two axial tension and compression stress state[J]. Journal of Hydraulic Engineering，1991，(8)：51-56.(in Chinese))
2013, Vol. 32 
