利用岩石断裂强度来估算地下岩体水平应力的范围

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (359 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

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

Received: 05 March 2012

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://www.rockmech.org/EN/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">