利用岩石断裂强度来估算地下岩体水平应力的范围

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (359 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要地下岩体的垂直应力一般可用其上部覆盖岩体的平均比重乘以其深度来估算，但是水平应力却很难估算。基于岩石断裂韧度是一个常数，利用共线裂纹模型建立裂隙岩体的稳定条件，并应用该稳定条件来估算水平应力的范围。估算结果符合现场的测试结果，表明这一估算方法是有效的、可行的。利用该裂隙岩体稳定条件能很好地解释水平应力与垂直应力之比在浅部地壳中分布在较宽的范围内，但在深部区域内却分布在一个狭小的范围内这一现象。

	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 ：岩石力学, 水平应力, 应力强度因子, 裂纹, 地下岩体

Abstract：The vertical stress of underground rock mass can be evaluated by depth times the average unit weight of overlying rock mass. However，horizontal stress is difficult to estimate. Based on the fact that rock fracture toughness is a constant，two-collinear crack model is applied to establish the stability condition of fractured rock mass. From this stability condition，the range of horizontal stress can be evaluated；and the evaluation result agrees well with in-situ measurement results，so that indicating the evaluation method is effective and feasible. Through the stability condition of fractured rock mass，we can well explain the phenomenon that the ratio of horizontal stress to vertical stress in shallow zone is scattered in a wide range；but in deep zone，it is scatted in a narrow range.

Key words： rock mechanics horizontal stress stress intensity factor crack underground rock mass

收稿日期: 2012-03-05

引用本文:

朱哲明1，胡荣1，李业学2. 利用岩石断裂强度来估算地下岩体水平应力的范围[J]. 岩石力学与工程学报, 2012, 31(8): 1721-1728.
ZHU Zheming1，HU Rong1，LI Yexue2. EVALUATION OF RANGE OF HORIZONTAL STRESSES OF UNDERGROUND ROCK MASS BY USING ROCK FRACTURE STRENGTH. , 2012, 31(8): 1721-1728.

链接本文:

http://www.rockmech.org/CN/Y2012/V31/I8/1721

[1]	HOEK E，BROWN E T. Underground Excavations in Rock[M]. London，UK：The Institution of Mining and Metallurgy，1980：93-101. " target="_blank">
[5]	KARL T，RICHART F E. Stresses in rock about cavities[J]. Geotechnique，1952，3(2)：57-90. " target="_blank">
[9]	TOWNEND J，ZOBACK M D. Stress，Strain，and mountain building in central Japan[J]. Journal of Geophysical Research，2006，111：B03411. doi：10.1029/2005JB003759. " target="_blank">
[10]	TOWNEND J. What do faults feel? Observational constraints on the stress acting on seismogenic faults[M]// ABERCROMBIE R，MCGARR A，KANAMORI H，et al ed. Earthquakes：Radiated Energy and Physics of faulting. Washington：American Geophysical Union(AGU)，2006：313-327. " target="_blank">
[13]	TOWNEND J，ZOBACK M D. How faulting keeps the crust strong[J]. Geology，2000，28(5)：399-402. " target="_blank">
[3]	BOHNHOFF M，GROSSER H. DRESEN G. Strain partitioning and stress rotation at the North Anatolian fault zone from aftershock focal mechanisms of the 1999 Izmit Mw= 7.4 earthquake[J]. Geophysical Journal International，2006，166(1)：373-385. " target="_blank">
[7]	HOOKER V E，BICKEL D L，AGGSON J R. In-situ determination of stresses in mountainous topography[R]. [S.l.]：United States Bureau of Mines Reports of Investigations，1972. " target="_blank">
[11]	ENGELDER T. Stress regimes in the lithosphere[M]. Princeton，USA：Princeton University Press，1993，12-492. " target="_blank">
[14]	ZOBACK M D，TOWNEND J，GROLLIMUND B. Steady-state failure equilibrium and deformation of intraplate lithosphere[J]. International Geology Review，2002，44(5)：383-401. " target="_blank">
[19]	TOWNEND J，ZOBACK M D. Regional tectonic stress near the San Andreas fault in central and southern California[J]. Geophysical Research Letters，2004，31：L15S11. doi：10.1029/2003GL018918. " target="_blank">
[23]	BONESS N L，ZOBACK M D. A multiscale study of the mechanisms controlling shear velocity anisotropy in the San Andreas fault observatory at depth[J]. Geophysics，2006，71(5)：F131-F146. " target="_blank">
[26]	ZHU Z M，XIE H，JI S. The mixed boundary problems for a mixed mode crack in a finite plate[J]. Engineering Fracture Mechanics，1997，56(5)：647-655. " target="_blank">
[30]	ZHU Z M. An alternative form of propagation criterion for two collinear cracks under compression[J]. Mathematics and Mechanics of Solids，2009，14(3)：727-746. " target="_blank">
[17]	ZANG A，STEPHANSSON O. Stress field of the earth?s crust[M]. London，U K：Springer，2010，63-81. " target="_blank">
[21]	BALFOUR N J，SAVAGE M K，TOWNEND J. Stress and crustal anisotropy in Marborough，New Zealand：evidence for low fault strength and structure-controlled anisotropy[J]. Geophysical Journal International，2005，163(3)：1 073-1 086. " target="_blank">
[12]	AMADEI B，STEPHANSSON O. Rock stress and its measurement[M]. London，U K：Chapman and Hall，1997，10-490. " target="_blank">
[15]	CHERY J，ZOBACK M D，HICKMAN S. A mechanical model of the San Andreas fault and SAFOD pilot hole stress measurements[J]. Geophysical Research Letters，2004，31：L15S13. doi：10.1029/ 2004GL019521. " target="_blank">
[2]	ROMAN D C，MORAN S C，POWER J A，et al. Temporal and spatial variation of local stress fields before and after the 1992 eruptions of Crater Peak vent，Mount Spurr volcano，Alaska[J]. Bulletin of the Seismological Society of American，2004，94：2 366-2 379. " target="_blank">
[4]	HEIM A. Zur Frage der Gebirgs—und Gesteinsfestigkeit[R]. Schweiz，Bauztg：[s. n.]，1912.(in French) " target="_blank">
[6]	TALOBRE J. Rock mechanics[M]. Dunod，Paris：Cambridge University Press，1957：120-225. " target="_blank">
[8]	HARDEBECK J L，MICHAEL A J. Stress orientations at intermediate angles to the San Andreas fault，California[J]. Journal of Geophysical Research，2004，109：B11303. doi：10.1029/2004JB003239. " target="_blank">
[16]	JAEGER J，COOK N G，ZIMMERMAN R. Fundamentals of rock mechanics[M]. London，U K：Wiley-Blackwell Press，2007，412-456. " target="_blank">
[18]	FLESH L M，HOLT W E，HAINES A J，et al. Dynamics of the Pacific-North American plate boundary in the Western United States[J]. Science，2000，287：834-836. " target="_blank">
[20]	BECKER T W，HARDEBECK J L，ANDERSON G. Constraints on fault slip rates of the southern California plate boundary from GPS velocity and stress inversions[J]. Geophysical Journal International，2005，160(2)：634-650. " target="_blank">
[22]	BONESS N L，ZOBACK M D. Mapping stress and structurally controlled crustal shear velocity anisotropy in California[J]. Geology，2006，34(10)：825-828. " target="_blank">
[24]	LUND B，TOWNEND J. Calculating horizontal stress orientations with full or partial knowledge of the tectonics stress tensor[J]. Geophysical Journal International，2007，170(3)：1 328-1 335. " target="_blank">
[25]	WADA M，OGAWA T，SONODA H，et al. An improved method of collocation for the problem of crack surface subjected to uniform load[J]. Engineering Fracture Mechanics，1996，54(5)：731-741. " target="_blank">
[27]	ZHU Z M. New biaxial failure criterion for brittle materials in compression[J]. Journal of Engineering Mechanics，ASCE，1999，125(11)：1 251-1 258. " target="_blank">
[28]	ZHU Z M，WANG L G，MOHANTY B，et al. Stress intensity factor for a cracked specimen under compression[J]. Engineering Fracture Mechanics，2006，73(4)：482-489.
[29]	朱哲明，汪元，周章涛，等. 脆性材料在压缩载荷作用下的断裂破坏准则[J]. 四川大学学报：工程科学版，2008，40(5)：13-21. (ZHU Zheming，WANG Yuan，ZHOU Zhangtao，et al. A new fracture criterion for brittle materials under compression[J]. Journal of Sichuan University：Engineering Science，2008，40(5)：13-21.(in Chinese)) " target="_blank">
[31]	JIN W，ZHU Z M，GAO M. A general method to determine SIF of multiple collinear cracks[J]. Mathematics and Mechanics of Solids，2012. doi：10.1177/1081286512439556(to be pressed). " target="_blank">