新丰江水库地震孔隙弹性耦合有限元模拟
摘要
1962年新丰江水库Ms6.1级地震是公认的水库诱发地震,对该水库蓄水造成的库仑应力变化进行量化估算,有助于对多大量级的库仑应力可以触发水库地震的这一基础性科学问题的了解.从这一角度出发,建立了新丰江水库三维孔隙弹性耦合模型,应用有限单元法计算水库蓄水引起库区应力场、孔隙压力场、断层上库仑应力的动态变化响应和蓄水累积的应变能.数值模拟结果表明:新丰江水库蓄水引起库区和其周围断层上库仑应力增大0.7～3.0kPa,量值大小依赖于扩散系数;其中水体荷载部分引起的库仑应力变化小于0.5kPa,孔隙压力扩散占主导因素;新丰江水库蓄水引起地面最大垂直形变量为?17.5mm,与实测数据非常接近;水库蓄水累积应变能为7.3×1011J,小于Ms6.1地震波释放能量1%,表明地震释放的主要是构造应变能,水库蓄水仅起触发作用.
引文
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2于品清,孔凡健.水库地震地质构造条件的讨论.地壳形变与地震,1983,3:71-81
3夏其发.《世界水库诱发地震震例基本参数汇总表》暨水库诱发地震评述.中国地质灾害与防治学报,1992,3:95-100
4刘远征,马瑾,姜彤,等.库水渗流与荷载对水库地震形成的影响分析.地震地质,2010,32:570-585
5光耀华.论水库要素与水库地震的关系.华南地震,1988,8:79-85
6李祖武.水库地震与地质构造的关系.地震地质,1981,3:61-69
7Terzaghi K.Die Berechnung der Durchlassigkritsziffer des Tones aus dem Verlauf Der Hydrodynamicschen Spannugserscheinungen.Sber Akad Wiss Wien,1923,132:105-132
8易立新,王广才,李榴芬.水文地质结构与水库诱发地震.水文地质工程地质,2004,2:29-32
9易立新,车用太,王广才.水库诱发地震研究的历史、现状与发展趋势.华南地震,2003,23:28-37
10胡毓良,陈献程.我国水库地震及相关成因问题的讨论.地震地质,1979,1:45-57
11杜运连,王洪涛,袁丽文.我国水库诱发地震研究.地震,2008,28:39-51
12丁原章,潘建雄,肖安予,等.新丰江水库诱发地震的构造条件.地震地质,1983,5:63-74
13丁原章.中国的水库诱发地震.华南地震,1989,9:64-72
14徐煜坚.论水库地震.岩石力学与工程学报,1984,3:66-74
15Bell M L,Nur A.Strength changes due to reservior-induced pore pressure and stresses and application to Lake Oroville.J Geophys Res,1978,83:4469-4483
16Talwani P,Acree S.Pore press diffusion and the mechanism of reservoir-induced seismicity.Pure Appl Geophys,1984,122:947-965
17Talwani P.On the nature of reservoir-induced seismicity.Pure Appl Geophys,1997,150:473-492
18Roeloffs E A.Fault stability changes induced beneath a reservoir with cyclic variations in water level.J Geophys Res,1988,93:2107-2124
19Simpson D W,Gharib A A,Kebeasy R M.Induced seismicity and changes in water level at Aswan reservoir.Gerlands Beitr Geophys,1990,99:191-201
20Gough D I,Gough W L.Stress and deflection in the lithosphere near Lake Kariba.Geophys.J Roy Astron Soc,1970,21:70-101
21陈颙.汶川地震是由水库蓄水引起的吗?中国科学D辑:地球科学,2009,39:257-259
22马文涛,徐长朋,张新东,等.紫坪铺水库与汶川地震关系的讨论.地震地质,2011,33:175-190
23雷兴林,马胜利,闻学泽,等.地表水体对断层应力与地震时空分布影响的综合分析——以紫坪铺水库为例.地震地质,2008,30:1046-1064
24Lei X L.Possible roles of the Zipingpu Reservoir in triggering the2008Wenchuan earthquake.J Asian Earth Sci,2010,40:844-854
25Ge S M,Liu M,Lu N,et al.Did the Zipingpu Reservoir trigger the2008Wenchuan earthquake?Geophys Res Lett,2009,36:1-5
26张贝,石耀霖.紫坪铺水库对附近断层稳定性影响的探讨.中国科学院研究生院报,2010,27:755-762
27周斌,薛世峰,邓志辉.水库诱发地震时空演化特征与库水加卸载及渗透过程的关系——以紫坪铺水库为例.地球物理学报,2010,53:2651-2670
28Gahalaut K,Gahalaut V K.Effect of the Zipingpu reservoir impoundment on the occurrence of the2008Wenchuan earthquake and local seismicity.Geophys J Int,2010,183:277-285
29Zhu B J,Cheng H H,Liu C,et al.Porosity and permeability evolution and evaluation in ani-sotropic porosity multiscale-multiphase-multicomponent structure.Chin Sci Bull,2011,56:320-327
30Zhu B J,Liu C,Shi Y L,et al.Apllication of flow driven pore-network crack model to Zipingpi reservoir and Longmenshan slip.Sci China Phys Mechan Astronomy,2011,54:1-9
31沈崇刚,陈厚群,张楚汉,等.新丰江水库地震及其对大坝的影响.中国科学,1974,2:184-205
32王妙月,杨懋源,胡毓良,等.新丰江水库地震的震源机制及其成因的初步探讨.中国科学,1976,1:85-97
33丁原章.水库诱发地震.北京:地震出版社,1989.10-60
34沈立英,常宝琦,吴名彬.弹性多孔介质中应力——孔隙压耦联理论在新丰江地震研究中的应用.中国地震,1992,8:36-43
35魏柏林.新丰江水库地震震源应力场与构造应力场.地震地质,1981,3:75-79
36陈益明.新丰江水库地震及其小震震源机制的研究.华南地震,1982,2:64-71
37龚鸿庆.关于新丰江水库地震的成因问题.华南地震,1982,2:72-78
38Chen L,Talwani P.Reservoir-induced seismicity in China.Pure Appl Geophys,1998,153:133-149
39Herbert F W.Theory of Linear Poroelasticity with Applications to Geomechanics and Hydrogeology.Princeton:Princeton University Press,2000.4-10
40Biot M A.General theory of three-dimensional consolidation.J Appl Phys,1941,12:155-164
41Biot M A.General solutions of the equations of elasticity and consolidation for a porous material.J Appl Mech,1956,78:91-96
42Rice J R,Cleary M P.Some basic stress diffusion solutions for fluid-saturated elastic porous media with compressible constituents.Rev Geophys Space Phys,1976,14:227-241
43Patrick A D,Franklin W S.Physcical and Chemical Hydrogeology.New York:John Wiley&Sons Inc,1998.159-180
44石耀霖,曹建玲.库仑应力计算及应用过程中若干问题的讨论——以汶川地震为例.地球物理学报,2010,53:102-110
45李安然,张飞飞,张柯.从新丰江水库地震的环境条件讨论水诱发地震的研究及其预测.华南地震,1992,12:88-94
46龚钢延,谢原定.岩石渗透率变化的实验研究.岩石力学与工程学报,1989,3:219-227
47龚钢延,谢原定.新丰江水库地震区内孔隙流体扩散与原地水力扩散率的研究.地震学报,1991,13:364-371
48谢原定.新丰江水库区水力扩散与诱发地震活动性分析.高原地震,1996,8:27-35
49李世愚,和泰名,尹祥础.岩石断裂力学导论.合肥:中国科学技术大学出版社,2010.15-25
50King G C P,Stein R S,Lin J P.Static stress changes and the trgering of earthquake.Bull Seismol Soc Amer,1994,84:935-953
2于品清,孔凡健.水库地震地质构造条件的讨论.地壳形变与地震,1983,3:71-81
3夏其发.《世界水库诱发地震震例基本参数汇总表》暨水库诱发地震评述.中国地质灾害与防治学报,1992,3:95-100
4刘远征,马瑾,姜彤,等.库水渗流与荷载对水库地震形成的影响分析.地震地质,2010,32:570-585
5光耀华.论水库要素与水库地震的关系.华南地震,1988,8:79-85
6李祖武.水库地震与地质构造的关系.地震地质,1981,3:61-69
7Terzaghi K.Die Berechnung der Durchlassigkritsziffer des Tones aus dem Verlauf Der Hydrodynamicschen Spannugserscheinungen.Sber Akad Wiss Wien,1923,132:105-132
8易立新,王广才,李榴芬.水文地质结构与水库诱发地震.水文地质工程地质,2004,2:29-32
9易立新,车用太,王广才.水库诱发地震研究的历史、现状与发展趋势.华南地震,2003,23:28-37
10胡毓良,陈献程.我国水库地震及相关成因问题的讨论.地震地质,1979,1:45-57
11杜运连,王洪涛,袁丽文.我国水库诱发地震研究.地震,2008,28:39-51
12丁原章,潘建雄,肖安予,等.新丰江水库诱发地震的构造条件.地震地质,1983,5:63-74
13丁原章.中国的水库诱发地震.华南地震,1989,9:64-72
14徐煜坚.论水库地震.岩石力学与工程学报,1984,3:66-74
15Bell M L,Nur A.Strength changes due to reservior-induced pore pressure and stresses and application to Lake Oroville.J Geophys Res,1978,83:4469-4483
16Talwani P,Acree S.Pore press diffusion and the mechanism of reservoir-induced seismicity.Pure Appl Geophys,1984,122:947-965
17Talwani P.On the nature of reservoir-induced seismicity.Pure Appl Geophys,1997,150:473-492
18Roeloffs E A.Fault stability changes induced beneath a reservoir with cyclic variations in water level.J Geophys Res,1988,93:2107-2124
19Simpson D W,Gharib A A,Kebeasy R M.Induced seismicity and changes in water level at Aswan reservoir.Gerlands Beitr Geophys,1990,99:191-201
20Gough D I,Gough W L.Stress and deflection in the lithosphere near Lake Kariba.Geophys.J Roy Astron Soc,1970,21:70-101
21陈颙.汶川地震是由水库蓄水引起的吗?中国科学D辑:地球科学,2009,39:257-259
22马文涛,徐长朋,张新东,等.紫坪铺水库与汶川地震关系的讨论.地震地质,2011,33:175-190
23雷兴林,马胜利,闻学泽,等.地表水体对断层应力与地震时空分布影响的综合分析——以紫坪铺水库为例.地震地质,2008,30:1046-1064
24Lei X L.Possible roles of the Zipingpu Reservoir in triggering the2008Wenchuan earthquake.J Asian Earth Sci,2010,40:844-854
25Ge S M,Liu M,Lu N,et al.Did the Zipingpu Reservoir trigger the2008Wenchuan earthquake?Geophys Res Lett,2009,36:1-5
26张贝,石耀霖.紫坪铺水库对附近断层稳定性影响的探讨.中国科学院研究生院报,2010,27:755-762
27周斌,薛世峰,邓志辉.水库诱发地震时空演化特征与库水加卸载及渗透过程的关系——以紫坪铺水库为例.地球物理学报,2010,53:2651-2670
28Gahalaut K,Gahalaut V K.Effect of the Zipingpu reservoir impoundment on the occurrence of the2008Wenchuan earthquake and local seismicity.Geophys J Int,2010,183:277-285
29Zhu B J,Cheng H H,Liu C,et al.Porosity and permeability evolution and evaluation in ani-sotropic porosity multiscale-multiphase-multicomponent structure.Chin Sci Bull,2011,56:320-327
30Zhu B J,Liu C,Shi Y L,et al.Apllication of flow driven pore-network crack model to Zipingpi reservoir and Longmenshan slip.Sci China Phys Mechan Astronomy,2011,54:1-9
31沈崇刚,陈厚群,张楚汉,等.新丰江水库地震及其对大坝的影响.中国科学,1974,2:184-205
32王妙月,杨懋源,胡毓良,等.新丰江水库地震的震源机制及其成因的初步探讨.中国科学,1976,1:85-97
33丁原章.水库诱发地震.北京:地震出版社,1989.10-60
34沈立英,常宝琦,吴名彬.弹性多孔介质中应力——孔隙压耦联理论在新丰江地震研究中的应用.中国地震,1992,8:36-43
35魏柏林.新丰江水库地震震源应力场与构造应力场.地震地质,1981,3:75-79
36陈益明.新丰江水库地震及其小震震源机制的研究.华南地震,1982,2:64-71
37龚鸿庆.关于新丰江水库地震的成因问题.华南地震,1982,2:72-78
38Chen L,Talwani P.Reservoir-induced seismicity in China.Pure Appl Geophys,1998,153:133-149
39Herbert F W.Theory of Linear Poroelasticity with Applications to Geomechanics and Hydrogeology.Princeton:Princeton University Press,2000.4-10
40Biot M A.General theory of three-dimensional consolidation.J Appl Phys,1941,12:155-164
41Biot M A.General solutions of the equations of elasticity and consolidation for a porous material.J Appl Mech,1956,78:91-96
42Rice J R,Cleary M P.Some basic stress diffusion solutions for fluid-saturated elastic porous media with compressible constituents.Rev Geophys Space Phys,1976,14:227-241
43Patrick A D,Franklin W S.Physcical and Chemical Hydrogeology.New York:John Wiley&Sons Inc,1998.159-180
44石耀霖,曹建玲.库仑应力计算及应用过程中若干问题的讨论——以汶川地震为例.地球物理学报,2010,53:102-110
45李安然,张飞飞,张柯.从新丰江水库地震的环境条件讨论水诱发地震的研究及其预测.华南地震,1992,12:88-94
46龚钢延,谢原定.岩石渗透率变化的实验研究.岩石力学与工程学报,1989,3:219-227
47龚钢延,谢原定.新丰江水库地震区内孔隙流体扩散与原地水力扩散率的研究.地震学报,1991,13:364-371
48谢原定.新丰江水库区水力扩散与诱发地震活动性分析.高原地震,1996,8:27-35
49李世愚,和泰名,尹祥础.岩石断裂力学导论.合肥:中国科学技术大学出版社,2010.15-25
50King G C P,Stein R S,Lin J P.Static stress changes and the trgering of earthquake.Bull Seismol Soc Amer,1994,84:935-953
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