3D IN-SITU CRUSTAL STRESS MEASUREMENT AND ITS APPLICATION TO UNDERGROUND WATER-SEALED OIL STORAGE CAVE ENGINEERING
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摘要: 地下水封油库是一种复杂的地下工程, 在施工期间开展岩体原位应力三维测量, 对设计的开挖和支护方案进行检验和复核, 有利于设计优化和指导施工。采用水压致裂测量方法, 在油库内南北水平、东西水平和垂直3个方向钻探成孔进行地应力测量, 综合3个方向的地应力测量结果, 计算确定三维地应力大小和方向。计算结果验证了设计所使用的勘察阶段地应力测量结果的可靠性, 检验和复核了设计施工方案的合理性, 并进一步评价了地下水封油库围岩稳定性。Abstract: Underground water-sealed oil storage cave is a complex underground project. 3D in-situ crustal stress measurement in the constructing process, which can be used to test and re-check for the design scheme of cave excavation and support, is advantageous to the design optimization and the construction. In-situ crustal stress measurements by hydrofracturing method in drilling boreholes along a three dimensional Cartesian coordinate system are conducted, and then the reliable 3D crustal stress magnitudes and directions are calculated from those measuring results. This 3D results examined the in-situ measurements at surveying stage used for designing, and verified the rationality of the design and construction scheme. In addition, the stability of surrounding rock of underground water-sealed oil storage cave was further assessed using the 3D results.
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图 1 锦州某地下水封油库内地应力测点钻孔布置示意图
Figure 1. The sketch map showing the arrangement of drilling boreholes for in-situ crustal stress measurement in an underground water-sealed oil storage cave in Jinzhou city
图 2 JZNS-1(左)与JZWE-2(右)实测主应力大小随水平深度变化
Figure 2. Variation of measured principal stress magnitudes along with horizontal depth in JZNS-1 and JZWE-2 boreholes
图 4 JZVZK-3实测主应力大小随垂直深度变化趋势
Figure 4. The variation of measured principal stress magnitudes along with vertical depth in JZVZK-3 borehole
图 5 锦州某地下水封油库内水压致裂三维地应力测量结果
Figure 5. The results of 3D crustal stress measurements using hydrofracturing method in an underground water-sealed oil storage cave in Jinzhou city
图 6 锦州某地下水封油库勘察阶段垂直钻孔地应力测量主应力大小随深度变化
Figure 6. The variation of principal stress magnitudes obtained at surveying stage along with depth in vertical drilling boreholes of an underground water-sealed oil storage cave in Jinzhou city
图 7 锦州某地下水封油库垂直钻孔最大水平主应力方向随深度变化
Figure 7. The variation of maximum horizontal principal stress orientations along with depth in vertical drilling boreholes of an underground water-sealed oil storage cave in Jinzhou city
图 8 区域最大、最小水平主应力方向玫瑰花图
Figure 8. The rose diagram of regional maximum and minimum horizontal principal stress directions
表 1 锦州某地下水封油库水平钻孔JZNS-1水压致裂应力测量结果
Table 1. The hydrofracturing crustal stress measurements of JZNS-1 horizontal borehole in an underground water-sealed oil storage cave in Jinzhou city
序号 测试段深度/m 压裂参数/MPa 应力值/MPa S′H方向/(°) Pb Pr Ps PH P0 T S′H S′h 1 4.60~5.15 17.63 3.37 3.78 0.00 0.00 14.26 7.97 3.78 2 6.60~7.15 18.29 3.93 4.09 0.00 0.00 14.36 8.34 4.09 3 8.60~9.15 17.31 4.64 4.31 0.00 0.00 12.67 8.29 4.31 4 12.60~13.15 17.95 3.80 4.25 0.00 0.00 14.15 8.95 4.25 5 14.60~15.15 14.33 4.50 4.38 0.00 0.00 9.83 8.64 4.38 6 16.60~17.15 20.41 3.94 4.31 0.00 0.00 16.47 8.99 4.31 7 18.60~19.15 19.14 4.50 4.61 0.00 0.00 14.64 9.33 4.61 8 20.60~21.15 9.23 4.89 4.87 0.00 0.00 4.34 9.72 4.87 9 22.60~23.15 12.93 5.18 4.94 0.00 0.00 7.75 9.64 4.94 10 24.60~25.15 11.65 3.64 2.85 0.00 0.00 8.01 4.91 2.85 11 26.60~27.15 18.52 3.88 3.91 0.00 0.00 14.64 7.85 3.91 13 12 28.30~28.85 12.85 4.01 3.93 0.00 0.00 8.84 7.78 3.93 18 
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表 2 锦州地下水封油库水平钻孔JZWE-2水压致裂应力测量结果
Table 2. The hydrofracturing crustal stress measurements of JZWE-2 horizontal borehole in an underground water-sealed oil storage cave in Jinzhou city
序号 测试段深度/m 压裂参数/MPa 应力值/MPa S′H方向/(°) Pb Pr Ps PH P0 T S′H S′h 1 4.60~5.15 17.12 4.95 4.35 0.00 0.00 12.17 8.10 4.35 2 6.60~7.15 17.20 4.71 4.82 0.00 0.00 12.49 9.75 4.82 3 8.60~9.15 17.16 5.30 4.77 0.00 0.00 11.86 9.01 4.77 4 10.60~11.15 16.93 5.26 5.08 0.00 0.00 11.67 9.98 5.08 5 12.60~13.15 15.70 5.12 4.89 0.00 0.00 10.58 9.55 4.89 6 14.60~15.15 16.73 4.72 4.52 0.00 0.00 12.01 8.84 4.52 7 16.60~17.15 16.77 4.70 4.42 0.00 0.00 12.07 8.56 4.42 8 18.60~19.15 16.83 4.45 4.69 0.00 0.00 12.38 9.62 4.69 9 20.60~21.15 17.45 4.58 4.77 0.00 0.00 12.87 9.73 4.77 10 22.60~23.15 17.49 4.90 5.01 0.00 0.00 12.59 10.13 5.01 11 24.60~25.15 18.83 4.40 4.25 0.00 0.00 14.43 8.35 4.25 12 26.60~27.15 20.17 4.89 5.30 0.00 0.00 15.28 11.01 5.30 15 13 28.60~29.15 16.71 5.34 5.15 0.00 0.00 11.37 10.11 5.15 25
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表 3 锦州地下水封油库垂直钻孔JZVZK-3水压致裂应力测量结果
Table 3. The hydrofracturing crustal stress measurements of JZVZK-3 vertical borehole in an underground water-sealed oil storage cave in Jinzhou city
序号 测试段深度/m 压裂参数/MPa 应力值/MPa SH方向/(°) Pb Pr Ps PH P0 T SH Sh SV 1 6.60~7.15 17.12 4.79 4.42 0.06 0.06 12.33 8.41 4.42 3.09 N84°E 2 10.60~11.15 16.19 4.62 4.03 0.10 0.10 11.57 7.37 4.03 3.20 N58°W 3 14.60~15.15 15.64 3.94 3.57 0.14 0.14 11.70 6.63 3.57 3.31 4 18.60~19.15 13.87 3.98 3.88 0.18 0.18 9.89 7.48 3.88 3.42 5 22.60~23.15 15.68 4.02 3.96 0.22 0.22 11.66 7.64 3.96 3.53 N67°E 6 26.60~27.15 16.93 4.76 4.56 0.26 0.26 12.17 8.66 4.56 3.63 7 30.60~31.15 18.41 5.80 5.58 0.30 0.30 12.61 10.64 5.58 3.74 N83°E 8 34.60~35.15 20.28 7.23 6.61 0.34 0.34 13.05 12.26 6.61 3.85 N88°E 9 38.60~39.15 14.32 5.68 5.66 0.38 0.38 8.64 10.92 5.66 3.96 10 44.60~45.15 18.40 5.74 5.64 0.44 0.44 12.66 10.74 5.64 4.12 11 48.60~49.15 17.58 6.54 6.22 0.48 0.48 11.04 11.64 6.22 4.23 N76°E 12 52.60~53.15 20.87 7.60 7.33 0.52 0.52 13.27 13.87 7.33 4.34 N87°W 13 56.60~57.15 21.90 8.91 8.93 0.55 0.55 12.99 17.33 8.93 4.44
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表 4 锦州某地下水封油库三维应力计算结果
Table 4. The 3D crustal stress calculated results in an underground water-sealed oil storage cave in Jinzhou city
主应力 量值/MPa 方位角/(°) 仰角/(°) 倾伏向 最大主应力(σ1) 11.56 59.86 12.32 NEE 中间主应力(σ2) 5.84 329.82 11.70 NNW 最小主应力(σ3) 3.07 0.27 -78.18 SN
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表 5 锦州某地下水封油库垂直钻孔地应力测量最大水平主应力方向统计
Table 5. The statistics of maximum horizontal principal stress orientations in an underground water-sealed oil storage cave in Jinzhou city
孔号 印模段中心深度/m 最大水平主应力方向 ZK1 79.5 N78°E 115.5 N33°E 132.5 N72°W ZK3 41.0 N73°E 85.0 N79°E 115.0 N86°E ZK8 78.7 N62°E 93.0 N65°E 104.2 N68°E 113.2 N54°W ZK12 43.7 N82°E 69.3 N71°E 99.0 N62°E ZK11 65.5 N77°E 103.5 N67°E 121.5 N87°E 133.9 N83°E JZVZK-3 116.9 N84°E 120.9 N58°W 122.9 N67°E 130.9 N83°E 134.9 N88°E 148.9 N76°E 152.9 N87°W
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[1] 刘允芳.岩体地应力与工程建设[M].武汉:湖北科学技术出版社, 2000LIU Yun-fang. Geo-stress and engineering construction[M]. Wuhan: Hubei Science and Technology Press, 2000. [2] 王成虎, 刘立鹏, 郭启良, 等.地应力测量数据分析及对工程稳定性控制设计的意义[J].工程地质学报, 2008, 16(S): 377~381 http://cpfd.cnki.com.cn/Article/CPFDTOTAL-GCDZ200810001080.htmWANG Cheng-hu, LIU Li-peng, GUO Qi-liang, et al. One method to analyze the measured in-situ stress data and its significance to the project stability design[J]. Journal of Engineering Geology, 2008, 16(Suppl.): 377~381. http://cpfd.cnki.com.cn/Article/CPFDTOTAL-GCDZ200810001080.htm [3] 王成虎, 郭啟良, 丁立丰, 等.工程区高地应力判据研究及实例分析[J].岩土力学, 2009, 30(8):2359~2364 http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200908032.htmWANG Cheng-hu, GUO Qi-liang, DING Li-feng, et al. High in-situ stress criteria for engineering area and a case analysis[J]. Rock and Soil Mechanics, 2009, 30(8): 2359~2364. http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200908032.htm [4] 谭成轩, 孙炜锋, 孙叶, 等.地应力测量及其地下工程应用的思考[J].地质学报, 2006, 80(10):1627~1632 doi: 10.3321/j.issn:0001-5717.2006.10.018TAN Cheng-xuan, SUN Wei-feng, SUN Ye, et al. A consideration on in-situ crustal stress measuring and its underground engineering application[J]. Acta Geologica Sinica, 2006, 80(10): 1627~1632. doi: 10.3321/j.issn:0001-5717.2006.10.018 [5] 谭成轩, 孙叶, 王连捷.地应力测量值得注意的若干问题[J].地质力学学报, 2003, 9 (3):275~280 http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20030335&journal_id=dzlxxbTAN Cheng-xuan, SUN Ye, WANG Lian-jie. Some problems of in-situ crustal stress measurements[J]. Journal of Geomechanics, 2003, 9(3): 275~280. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20030335&journal_id=dzlxxb [6] 景锋, 盛谦, 张勇慧, 等.不同地质成因岩石地应力分布规律的统计分析[J].岩土力学, 2008, 29(7):1877~1883 http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200807032.htmJING Feng, SHENG Qian, ZHANG Yong-hui, et al. Statistical analysis of geostress distribution laws for different rocks[J]. Rock and Soil Mechanics, 2008, 29(7): 1877~1883. http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200807032.htm [7] Martin C D. Characterizing in-situ stress domains at the AECL underground research laboratory[J]. Canadian Geotechnical Journal. 1990, 27: 631~646. doi: 10.1139/t90-077 [8] Tan Chengxuan, Wang Ruijiang, Sun Ye, et al. Numerical modeling estimation of the 'tectonic stress plane (TSP)' beneath topography with quasi-U-shaped valleys[J]. International Journal of Rock Mechanics and Mining Sciences, 2004, 41(2): 303~310. doi: 10.1016/S1365-1609(03)00096-0 [9] Haimson B C, Cornet F H. 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: 1011~1020. doi: 10.1016/j.ijrmms.2003.08.002 [10] 尤明庆.水压致裂法测量地应力方法的研究[J].岩土工程学报, 2005, 27(3):350~353 http://cdmd.cnki.com.cn/Article/CDMD-10424-2003124359.htmYOU Ming-qing. Study on the geo-stress measurement with hydro-fracture of borehole[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(3): 350~353. http://cdmd.cnki.com.cn/Article/CDMD-10424-2003124359.htm [11] 陈群策, 安美建, 李方全.水压致裂法三维地应力测量的理论探讨[J].地质力学学报, 1998, 4(1):37~44 http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=19980106&journal_id=dzlxxbCHEN Qun-ce, AN Mei-jian, LI Fang-quan. Theoretical discussion on 3-D hydraulic fracturing in situ stress measurement[J]. Journal of Geomechanics, 1998, 4(1): 37~44. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=19980106&journal_id=dzlxxb [12] 侯明勋, 葛修润.三维地应力计算模型研究[J].岩土力学, 2007, 28(10):2017~2021 doi: 10.3969/j.issn.1000-7598.2007.10.002HOU Ming-xun, GE Xiu-run. Study on a calculation model for 3D in-situ rock stress tensor[J]. Rock and Soil Mechanics, 2007, 28(10): 2017~2021. doi: 10.3969/j.issn.1000-7598.2007.10.002 [13] 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):2149~2159 http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201207036.htmFENG Cheng-jun, CHEN Qun-ce, WU Man-lu, et al. Analysis of hydraulic fracturing stress measurement data: Discussion of methods frequently used to determine instantaneous shut-in pressure[J]. Rock and Soil Mechanics, 2012, 33(7): 2149~2159. http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201207036.htm [14] 侯明勋, 葛修润, 王水林.水力压裂法地应力测量中的几个问题[J].岩土力学, 2003, 24(5):840~844 http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200305038.htmHOU Ming-xun, GE Xiu-run, WANG Shui-lin. Discussion on application of hydraulic fracturing method to geostress measurement[J]. Rock and Soil Mechanics, 2003, 24(5): 840~844. http://www.cnki.com.cn/Article/CJFDTOTAL-YTLX200305038.htm [15] 中国地震局地壳应力研究所, 日本电力中央研究所.水压致裂裂缝的形成和扩展研究[M].北京:地震出版社, 1999:82Institute of China Seismological Bureau crustal stress, Japan Central Research Institute of Electric Power Industry. Research on information and extension of hydro-fractures[M]. Beijing: Seismological Press, 1999: 82. [16] 王成虎, 郭啟良, 侯砚和, 等.地下水封油库场址地应力场及工程稳定性分析研究[J].岩土工程学报, 2010, 32(5):698~705 http://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201005010.htmWANG Cheng-hu, GUO Qi-liang, HOU Yan-he, et al. In-situ stress field and project stability of underground water-sealed oil depots[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(5): 698~705. http://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201005010.htm [17] 侯砚和, 孙炜锋, 陈群策, 等.我国某地下油库预可行性研究地应力测量及其应用分析[J].地质力学学报, 2006, 12 (2):197~202 http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20060229&journal_id=dzlxxbHOU Yan-he, SUN Wei-feng, CHEN Qun-ce, et al. In situ stress measurement and its application in the pre-feasibility study of an underground oil reservoir in China[J]. Journal of Geomechanics, 2006, 12(2): 197~202. http://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20060229&journal_id=dzlxxb [18] 谢富仁, 陈群策, 崔效锋, 等.中国大陆地壳应力环境研究[M].北京:地质出版社, 2003XIE Fu-ren, CHEN Qun-ce, CUI Xiao-feng, et al. Crustal stress in China[M]. Beijing: Geological Publishing House, 2003. [19] Zoback M L. First-and second-order patterns of stress in the lithosphere: The World Stress Map Project[J]. Journal of Geophysical Research, 1992, 97(B8): 11703~11728. doi: 10.1029/92JB00132 -
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