|Table of Contents|

Overlying Rock Thickness Calculation of Roadway with Pressure Based on Unified Strength Theory(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2010年01期
Page:
78-83
Research Field:
Publishing date:
2010-03-20

Info

Title:
Overlying Rock Thickness Calculation of Roadway with Pressure Based on Unified Strength Theory
Author(s):
LI Tian-hua WEI Xue-ying ZHAO Jun-hai KONG Wei
School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China
Keywords:
surrounding rock of roadway overlying rock thickness elasto-plastic analysis unified strength theory intermediate principal stress
PACS:
TU452
DOI:
-
Abstract:
The elasto-plastic analysis for the stress of surrounding rock of roadway with pressure was carried out based on unified strength theory. By controlling the radius of plastic zone, the formula of the minimum overlying rock thickness was deduced. The effect of the intermediate principal stress on the material strength and the effect of strength difference in tension and compression were considered in the obtained formula. A series of overlying rock thicknesses could be obtained by defining the coefficient of intermediate principal stress. In practical engineering, the proper coefficient of intermediate principal stress could be obtained according to the experiment results of rock, and the minimum overlying rock thickness could be reasonably determined, furthermore, the roadway could be designed reasonably. The analytical results show that the formula considers the strength difference in tension and compression and intermediate principal stress, and the formula can be degenerated into the formula under other surrounding rock conditions or other strength theories. It has a good practicality.

References:

[1] 孙 钧.海底隧道工程设计施工若干关键技术的商榷[J].岩石力学与工程学报,2006,25(8):1513-1521. SUN Jun.Discussion on Some Key Technical Issues for Design and Construction of Undersea Tunnels[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(8):1513-1521.
[2]杨家岭,邱祥波,陈卫忠,等.海峡海底隧道及其最小岩石覆盖厚度问题[J].岩石力学与工程学报,2003,22(增1):2132-2137. YANG Jia-ling,QIU Xiang-bo,CHEN Wei-zhong,et al.Subsea Tunnel Through Channel and Its Min-imum Rock Cover[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(S1):2132-2137.
[3]王培勇,刘元雪,刘亚辉,等.水下隧道合理覆盖层厚度的有限元模拟研究[J].现代隧道技术,2007,44(2):5-9. WANG Pei-yong,LIU Yuan-xue,LIU Ya-hui,et al.FEM Adopted to Determine the Reasonable Overburden Thickness for a Subaqueous Tunnel[J].Modern Tunnelling Technology,2007,44(2):5-9.
[4]张 欣,李术才.爆破荷载作用下青岛胶州湾海底隧道覆盖岩层稳定性分析[J].岩石力学与工程学报,2007,26(11):2348-2355. ZHANG Xin,LI Shu-cai.Stability Analysis of Rock Cover of Qingdao Kiaochow Bay Subsea Tunnel Under Explosive Loads[J].Chinese Journal of Rock Mech-anics and Engineering,2007,26(11):2348-2355.
[5]许东俊,耿乃光.岩石强度随中间主应力变化规律[J].固体力学学报,1985,6(1):72-80. XU Dong-jun,GENG Nai-guang.The Variation Law of Rock Strength with Increase of Intermediate Principal Stress[J].Chinese Journal of Solid Mechanics,1985,6(1):72-80.
[6]SINGH B,GOEL R K,MEHROTRA V K,et al.Effect of Intermediate Principal Stress on Strength of Anisotropic Rock Mass[J].Tunnelling and Underground Space Technology,1998,13(1):71-79.
[7]刘汉东,曹 杰.中间主应力对岩体力学特性影响的试验研究[J].人民黄河,2008,30(1):59-60. LIU Han-dong,CAO Jie.Test and Study on Influence of Intermediate Main Stress to Characteristic of Rock Mechanics[J].Yellow River,2008,30(1):59-60.
[8]昝月稳,吉嶺充俊,俞茂宏,等.岩石强度理论与岩石强度试验的关系[C]//中国岩石力学与工程学会. 中国岩石力学与工程学会第七次学术大会论文集.北京:中国科学技术出版社,2002:117-120. ZAN Yue-wen,MITSUTOSHI Y,YU Mao-hong,et al.Relationship Between Rock Strength Theory and Strength Test[C]//Chinese Society of Rock Mechanics and Engineering.Proceedings of the 7th Rock Mechanics and Engineering Conference.Beijing:China Science and Technology Press,2002:117-120.
[9]YU Mao-hong,HE Li-nan.A New Model and Theory on Yield and Failure of Materials Under Complex Stress State[M].Oxford:Pergamon Press,1991:841-846.
[10]俞茂宏.岩土类材料的统一强度理论及其应用[J].岩土工程学报,1994,16(2):1-10. YU Mao-hong.Unified Strength Theory for Geoma-terials and Its Applications[J].Chinese Journal of Geotechnical Engineering,1994,16(2):1-10.
[11]宋建波,刘 宏.基于经验强度准则的有压隧洞覆岩厚度计算[J].矿业研究与开发,2005,25(5):33-36. SONG Jian-bo,LIU Hong.Calculation of Overlay Strata Thickness of the Tunnel with Pressure Based on the Experienced Strength Criterion[J].Mining Research and Development,2005,25(5):33-36.
[12]宋建波,窦丽云.经验强度准则确定有压隧硐上覆岩层最小厚度的方法[J].地球与环境,2004,32(2):78-82. SONG Jian-bo,DOU Li-yun.Method of Determining Overlying Strata Minimum Thickness of Tunnel in Hydraulic Engineering with Hoek-Brown Strength Criterion[J].Earth and Environment,2004,32(2):78-82.
[13]徐志英.岩石力学[M].3版.北京:中国水利水电出版社,2001. XU Zhi-ying.Rock Mechanics[M].3rd ed.Beijing:China Water Power Press,2001.
[14]邵小平,石平五,张嘉凡.亚急斜煤层采空场覆岩变形破坏数值与相似模拟[J].西安科技大学学报,2008,28(2):249-253. SHAO Xiao-ping,SHI Ping-wu,ZHANG Jia-fan.Numerical Simulation and Similarity Simulation of Overburden Deformation in Abandoned Stope in Mining Sub-steep Seams[J].Journal of Xi'an University of Science and Technology,2008,28(2):249-253.
[15]段王拴,高喜才,窦 娟.坚硬特厚煤层综放工作面覆岩破坏运动规律[J].西安科技大学学报,2008,28(2):211-214. DUAN Wang-shuan,GAO Xi-cai,DOU Juan.Law of Movement and Fracture of Overburden Strata of Fully-mechanized Top-coal Caving Face in the Hard and Thick Coal Seam[J].Journal of Xi'an University of Science and Technology,2008,28(2):211-214.
[16]王贵虎,何廷峻.高承压水体上开采底板岩层变形特征研究[J].西安科技大学学报,2007,27(3):359-363,400. WANG Gui-hu,HE Ting-jun.Coal Floor Movement Damage Character for Mining on the Top of Water-pressured[J].Journal of Xi'an University of Science and Technology,2007,27(3):359-363,400.
[17]张永兴,饶枭宇,唐树名,等.预应力锚索注浆体与岩石黏结界面抗剪强度试验[J].中国公路学报,2008,21(6):1-6. ZHANG Yong-xing,RAO Xiao-yu,TANG Shu-ming,et al.Experiment on Shear Strength of Cementation Plane Between Grout and Rock in Prestressed Anchor[J].China Journal of Highway and Transport,2008,21(6):1-6.
[18]来弘鹏,林永贵,谢永利,等.不同应力场下软弱围岩公路隧道的力学特征试验[J].中国公路学报,2008,21(4):81-87. LAI Hong-peng,LIN Yong-gui,XIE Yong-li,et al.Mechanical Characteristic Tests of Soft-weak Surrounding Rock Highway Tunnel Under Different Stress Fields[J].China Journal of Highway and Transport,2008,21(4):81-87.
[19]夏永旭,王文正,胡庆安.公路双连拱隧道施工过程中中隔墙的变形及稳定性[J].中国公路学报,2007,20(5):83-88. XIA Yong-xu,WANG Wen-zheng,HU Qing-an.Deformation and Stability of Mid-board in Process of Highway Double-arch Tunnel Construction[J].China Journal of Highway and Transport,2007,20(5):83-88.
[20]俞茂宏.双剪强度理论及其应用[M].北京:科学出版社,1998. YU Mao-hong.Twin Shear Strength Theory and Its Application[M].Beijing:Science Press,1998.
[21]俞茂宏.工程强度理论[M].北京:高等教育出版社,1999. YU Mao-hong.Engineering Strength Theory[M].Beijing:Higher Education Press,1999.
[22]YU Mao-hong.Unified Strength Theory and Applications[M].Berlin:Springer-Verlag,2004.
[23]翟所业,贺宪国.巷道围岩塑性区的德鲁克-普拉格准则解[J].地下空间与工程学报,2005,1(2):223-226. ZHAI Suo-ye,HE Xian-guo.Solution of D-P Criterion of Plastic District of Surrounding Rock of Roadway[J].Chinese Journal of Underground Space and En-gineering,2005,1(2):223-226.
[24]俞茂宏,杨松岩,刘春阳,等.统一平面滑移线场理论[J].土木工程学报,1997,30(2):14-26. YU Mao-hong,YANG Song-yan,LIU Chun-yang,et al.Unified Plane-strain Slip Line Field Theory System[J].China Civil Engineering Journal,1997,30(2):14-26.
[25]郑颖人,沈珠江,龚晓南.岩土塑性力学原理[M].北京:中国建筑工业出版社,2002. ZHENG Ying-ren,SHEN Zhu-jiang,GONG Xiao-nan.Principles of Geotechnical Plastic Mechanics[M].Beijing:China Architecture & Building Press,2002.

Memo

Memo:
-
Last Update: 2010-03-20