高放废物地质处置库北山预选区新场岩体地应力场分布规律

doi:10.13722/j.cnki.jrme.2014.s2.044

Abstract
Figure/Table
References (31)
Related Citation (15)

Download: PDF (2625 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Beishan area in Gansu Province is the first potential area for the construction of Chinas high-level radioactive waste(HLW) repository. To know the magnitude，orientation，and distribution characteristics of geostresses in the regional rock block，geostress measurement using a single loop hydraulic fracturing system is carried out in the Xinchang sub-area of the Beishan area. Based on the information in borehole log and acoustic borehole televiewer image，a total of 81 hydro-fracturing tests and 19 fracture impression tests are successfully conducted in four sub-vertical boreholes at depths ranging between 0 and 700 m below the ground surface. The obtained stress data provide a comprehensive view of the state of geostresses in the Xinchang sub-area. To make the hydro-fracturing results accuracy and reliable，three different methods are used to determine the instantaneous shut-in pressures according to the pressure-time history records. The measurement results indicate that the geostress components increase with depth. Within the measurement depth range，the maximum horizontal principal stress is generally larger than the vertical stress，and has a maximum value close to 25 MPa，reflecting that the regional stress filed is dominated by tectonic horizontal stress rather than by the overburden load. On the other hand，the relationship between the ratio of the maximum principal stress to vertical stress and depth shows that there exists a possible transition of regional stress field from tectonic stress dominated to weight stress dominated in deep ground. In addition，the orientation of the major horizontal stress in the Xinchang sub-area is dominantly in the NEE direction，which is in general agreement with that of regional tectonic stress field deduced from movement of the earths plates. This confirms the reasonability of the geostress data obtained from the present stress measurement campaigns. The measurement results provide stress boundary conditions for the design and stability assessment of HLW disposal systems in the Beishan area，and provide meaningful geostress information for further research on stress field distribution of northwestern China.

Key words： rock mechanics high-level radioactive waste disposal Beshan area Xinchang rock block geostress hydraulic fracturing method stress field distribution

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHAO Xingguang1
	WANG Ju1
	MA Like1
	SU Rui1
	JIN Yuanxin1
	CHEN Qunce2
	AN Qimei3
	QIN Xianghui2

Cite this article:

ZHAO Xingguang1,WANG Ju1,MA Like1, et al. DISTRIBUTION CHARACTERISTICS OF GEOSTRESS FIELD IN XINCHANG ROCK BLOCK OF CANDIDATE BEISHAN AREA FOR HIGH LEVEL RADIOACTIVE WASTE REPOSITORY IN CHINA[J]. , 2014, 33(S2): 3750-3759.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.044 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/3750

[1]	潘自强，钱七虎. 高放废物地质处置战略研究[M]. 北京：原子能出版社，2009：3-4.(PAN Ziqiang，QIAN Qihu.Strategic research for deep geological disposal of high level radioactive waste[M]. Beijing：Atomic Energy Press，2009：3-4.(in Chinese))
[2]	王驹，陈伟明，苏锐，等.高放废物地质处置及其若干关键科学问题[J]. 岩石力学与工程学报，2006，25(4)：801-812.(WANG Ju，CHEN Weiming，SU Rui，et al. Geological disposal of high-level radioactive waste and its key scientific issues[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(4)：801-812.(in Chinese))
[3]	王驹，范显华，徐国庆，等. 中国高放废物地质处置十年进展[M].北京：原子能出版社，2004：1-12.(WANG Ju，FAN Xianhua，XU Guoqing，et al. Geological disposal of high-level radioactive wastein China：progress in last decade[M]. Beijing：Atomic Energy Press，2004：1-12.(in Chinese))
[4]	王驹，苏锐，陈伟明，等.中国高放废物深地质处置[J]. 岩石力学与工程学报，2006，25(4)：649-658.(WANG Ju，SU Rui，CHENWeiming，et al. Deep geological disposal of high-level radioactive wastes in China[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(4)：649-658.(in Chinese))
[5]	WANG J. High-level radioactive waste disposal in China：update 2010[J]. Journal of Rock Mechanics and Geotechnical Engineering，2010，2(1)：1-11.
[6]	蔡美峰，何满潮，刘东燕. 岩石力学与工程[M]. 北京：科学出版社，2002：129-138.(CAI Meifeng，HE Manchao，LIU Dongyan. Rock mechanics and engineering[M]. Beijing：Science Press，2002：129-138.(in Chinese))
[7]	蔡美峰. 地应力测量原理和技术[M]. 北京：科学出版社，2000：1-10.(CAI Meifeng. Principle and techniques of in-situ stress measurement[M]. Beijing：Science Press，2000：1-10.(in Chinese))
[8]	HAIMSONBC，CORNETFH. ISRM suggested methods for rock stress estimation—Part 3：hydraulic fracturing(HF) and/or hydraulic testing of pre-existing fractures(HTPF)[J]. International Journal of Rock Mechanics and Mining Sciences，2003，40(7/8)：1011-1020.
[9]	SJBERG J，CHRISTIANSSON R，HUDSON JA.ISRM suggested methods for rock stress estimation—Part 2：overcoring methods[J]. International Journal of Rock Mechanics and Mining Sciences，2003，40(7/8)：999-1010.
[10]	CAI MF，YUB，QIAOL，et al.Experience of in situ stress measurement with hydrofracturing and overcoring techniques in Ekou mine[J]. International Journal of Rock Mechanics and Mining Sciences，1997，34(2)：299-302.
[11]	ZHAOJ，HEFNYAM，ZHOUYX. Hydrofracturing in situ stress measurements in Singapore granite[J]. International Journal of Rock Mechanics and Mining Sciences，2005，42(4)：577-583.
[12]	HAIMSON B C. Crustal stress in the Michigan Basin[J]. Journal of Geophysical Research，1978，83(B12)：5857-5863.
[13]	ZOBACKM D，HEALYJ H. In situ stress measurements to 3.5 km depth in the Cajon pass scientific research borehole：implications for the mechanics of crustal faulting[J]. Journal of Geophysical Research，1992，97(B4)：5039-5057.
[14]	KLEEG，BUNGERA，MEYERG，et al. In situ stresses in borehole Blanche-1/South Australia derived from breakouts，core discing and hydraulic fracturing to 2 km depth[J]. Rock Mechanics and Rock Engineering，2011，44(5)：531-540.
[15]	HAIMSON B C. The hydrofracturing stress measuringmethod and recent field results[J]. International Journal of Rock Mechanics and Mining Sciences andGeomechanicsAbstracts，1978，15(4)：167-178.
[16]	金远新，闵茂中，陈伟明，等. 甘肃北山预选区新场地段花岗岩类岩石特征研究[J]. 岩石力学与工程学报，2007，26(增2)：3 974-3 981.(JIN Yuanxin，MIN Maozhong，CHEN Weiming，et al. Study on granitecharacteristics of Xinchang section of candidate Beishan area，Gansu Province[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.2)：3 974-3 981.(in Chinese))
[17]	蔡美峰，陈长臻，彭华，等. 万福煤矿深部水压致裂法地应力测量[J]. 岩石力学与工程学报，2006，25(3)：1069-1074.(CAIMeifeng，CHEN Changzhen，PENG Hua，et al. In-situ stressmeasurement by hydraulic fracturing technique in deep position ofWanfu coal mine[J]. Chinese Journal of Rock Mechanics andEngineering，2006，25(3)：1069-1074.(in Chinese))
[18]	彭华，马秀敏，姜景捷，等. 赵楼煤矿1000 m深孔水压致裂地应力测量及其应力场研究[J]. 岩石力学与工程学报，2011，30(8)：1638-1645.(PENG Hua，MA Xiumin，JIANG Jingjie，et al. Researchon stress field and hydraulic fracturing in-situ stress measurement of1000 m deep hole in Zhaolou coal mine[J]. Chinese Journal of Rock Mechanics andEngineering，2011，30(8)：1638-1645.(in Chinese))
[19]	郭啟良，伍法权，钱卫平，等.乌鞘岭长大深埋隧道围岩变形与地应力关系的研究[J].岩石力学与工程学报，2006，25(11)：2194-2199. (GUO Qiliang，WU Faquan，QIAN Weiping，et al.Study on relationshipbetween deformation of surrounding rock and in-situ stress in Wushaoling deep-buried railway tunnel[J]. Chinese Journal of Rock Mechanics andEngineering，2006，25(11)：2194-2 199.(in Chinese))
[20]	李宏，安其美，王海忠，等.V型河谷区原地应力测量研究[J].岩石力学与工程学报，2006，25(增1)：3069-3073.(LI Hong，AN Qimei，WANG Haizhong，et al. Study on in-situ stress measurement in V-shaped river valley[J].Chinese Journal of Rock Mechanics andEngineering，2006，25(Supp.1)：3 069-3 073.(in Chinese))
[21]	AMADEIB，STEPHANSSON O.Rock stress and its measurement[M].London：Chapman andHall，1997：96-113.
[22]	丰成君，陈群策，吴满路，等. 水压致裂应力测量数据分析——对瞬时关闭压力ps的常用判读方法讨论[J].岩土力学，2012，33(7)：2 149-2 159.(FENG Chengjun，CHEN Qunce，WU Manlu，et al. Analysis of hydraulic fracturing stress measurement data—discussionof methods frequently used to determine instantaneous shut-in pressure[J].Rock and Soil Mechanics，2012，33(7)：2 149-2 159.(in Chinese))
[23]	GRONSETH J M，KRY P R. Instantaneous shut-inpressure and its relationship to the minimum in-situ stressin hydraulic fracturing stress measurements[M].Washington D. C.：National Academy Press，1983.
[24]	AAMODT R L，KUIRYAGAWA M. Measurement ofinstantaneous shut-in pressure in crystalline rock[C]// Proceedingsof Workshop on hydraulic fracturing stress measurements. Washington D. C.：National Academy Press，1983：139-142.
[25]	HAYASHI K，SAKURAI I. Interpretation of hydraulicfracturing shut-in curves for tectonic stressmeasurement[J]. International Journal of RockMechanics and Mining Sciences andGeomechanicsAbstracts，1989，26(6)：477-482.
[26]	HAYASHI K，HAIMSON B C. Characteristics of shut-incurves in hydraulic fracturing stress measurements anddetermination of in-situ minimum compressive stress[J].Journal of Geophysical Research，1991，96(18)：311-321.
[27]	MARTIN CD，KAISER PK，MCCREATH DR. Hoek-Brown parameters for predicting the depth of brittle failure around tunnels[J]. Canadian Geotechnical Journal，1999，36(1)：136-151.
[28]	KAISER PK，DIEDERICHS MS，MARTIN CD，et al. Underground works in hard rock tunnelling and mining[C]// Proceedings ofGeoEng2000. Melbourne：Australia Technomic Publishing Co.，2000：841-926.
[29]	XIE FR，ZHANG HY，DUY. The recent tectonic stress districts and strong earthquakes in China[C]// Proceedings of the 5th International Symposium on In-situ Rock Stress. Leiden：CRC Press，2010：35-42.
[30]	谢富仁，陈群策，崔效峰，等. 中国大陆地壳应力环境基础数据库[J].地球物理学进展，2007，22(1)：131-136.(XIE Furen，CHEN Qunce，CUI Xiaofeng，et al.Fundamental database of crustal stressenvironment in continental China[J]. Progress in Geophysics，2007，22(1)：131-136.(in Chinese))
[31]	牛之俊，王敏，孙汉荣，等. 中国大陆现今地壳运动速度场的最新观测结果[J].科学通报，2005，50(8)：839-840.(NIU Zhijun，WANG Min，SUN Hanrong，et al. New measurement results on velocity field of current crustal motion in the China Continent[J].Chinese Science Bulletin，2005，50(8)：839-840.(in Chinese))