引通济安深埋隧洞穿越北川—映秀断裂工程地质问题分析
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摘要
引通济安工程引水隧洞穿越北川—映秀断裂,该断裂为活动断裂,历史上曾发生过2008年汶川8.0级大地震,对引水隧洞的稳定性有直接影响。为确保工程抗震设计的科学性和工程运行的安全性,通过分析工程区内北川—映秀断裂的分布、性状及地应力特征,提出了断层极端工况下粘滑位错量与断层未来百年蠕滑量,为分析评价隧洞工程稳定性及抗断处理提供了依据,为本区及邻区类似地下工程的开展提供了参考。
The diversion tunnel of Yintongji'an project passes through the Beichuan-Yingxiu Fault. The fault is an active fault sincethe Wenchuan 8.0 earthquake occurred in 2008. It has a direct impact on the stability of this project. In order to ensure the scientific nature of engineering seismic design and the safety of engineering operation, by analyzing the distribution, characters and stress characteristics of the Beichuan-Yingxiu fault in the engineering area, we proposed a method to calculate the amount of the slip dislocation and the fault's future centennial creep slip. This study can provide basis for the analysis and evaluation of the stability of tunnel engineering and the design of anti-fault treatment, and provide reference for the development of similar underground engineering in this area and adjacent areas.
The diversion tunnel of Yintongji'an project passes through the Beichuan-Yingxiu Fault. The fault is an active fault sincethe Wenchuan 8.0 earthquake occurred in 2008. It has a direct impact on the stability of this project. In order to ensure the scientific nature of engineering seismic design and the safety of engineering operation, by analyzing the distribution, characters and stress characteristics of the Beichuan-Yingxiu fault in the engineering area, we proposed a method to calculate the amount of the slip dislocation and the fault's future centennial creep slip. This study can provide basis for the analysis and evaluation of the stability of tunnel engineering and the design of anti-fault treatment, and provide reference for the development of similar underground engineering in this area and adjacent areas.
引文
[1] 刘春龙,张永生,袁继国,等.高温引水隧洞应力场分布的研究[J].水利与建筑工程学报,2015,13(4):66-71.
[2] 于洋,刁心宏,赵秀绍,等.深部岩体隧洞岩爆灾害影响因素分析[J].南水北调与水利科技,2017,15(3):183-189.
[3] 田佳.深埋软岩供水隧洞蠕变特性研究进展[J].水利与建筑工程学报,2017,15(4):182-189.
[4] 闫亮,李勇,Densmore A L,等.北川地区擂鼓镇断裂在汶川地震中的地表破裂及其意义[J].第四纪研究,2009,29(3):535-545.
[5] 郭良,王成虎,马洪生,等.汶川Ms8.0级大震前后的水压致裂原地应力测量[J].地球物理学报,2009,52(5):1395-1401.
[6] 丰成君,陈群策,谭成轩,等.龙门山断裂带东北段现今地应力环境研究[J].地球物理学进展,2013,28(3):1109-1121.
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[10] 戚蓝,马斌,钟登华.断层错位影响下输水管道结构分析[J].水利水电技术,2001,32(12):47-48.
[11] 冯启民,赵林.跨越断层埋地管道屈曲分析[J].地震工程与工程振动,2001,21(4):80-87.
[12] 邓起东,陈立春,冉勇康.活动构造定量研究与应用[J].地学前缘,2004,11(4):383-392.
[13] 付碧宏,时丕龙,王萍,等.2008年汶川地震断层北川段的几何学与运动学特征及地震地质灾害效应[J].地球物理学报,2009,52(2):485-495.
[14] Wallance R E.Earthquake recurrence intervals on San Andreas fault[J].Geological society of America Bulletin,1970,81(10):2875-2890.
[15] 杜方,闻学泽,张培震.鲜水河断裂带炉霍段的震后滑动与形变[J].地球物理学报,2010,53(10):2355-2366.
[16] 王二七,孟庆任,陈智梁.龙门山断裂带印支期左旋走滑运动及其大地构造成因[J].地学前缘,2001,8(2):375-384.
[17] 马保起,苏刚,侯治华,等.利用岷江阶地的变形估算龙门山断裂带中段晚第四纪滑动速率[J].地震地质,2005,27(2):234-242.
[18] Shen Z K,Sun J B,Zhang P Z.Slip maxima at fault junctions and rupturing of barriers during the 2008 Wenchuan earthquake[J].Nature Geoscience,2009,2(10):718-724.
[19] 张永双,雷伟志,石菊松,等.四川省北川县擂鼓盆地地壳稳定性与城镇选址[J].地质学报,2008,82(12):1758-1768.
[2] 于洋,刁心宏,赵秀绍,等.深部岩体隧洞岩爆灾害影响因素分析[J].南水北调与水利科技,2017,15(3):183-189.
[3] 田佳.深埋软岩供水隧洞蠕变特性研究进展[J].水利与建筑工程学报,2017,15(4):182-189.
[4] 闫亮,李勇,Densmore A L,等.北川地区擂鼓镇断裂在汶川地震中的地表破裂及其意义[J].第四纪研究,2009,29(3):535-545.
[5] 郭良,王成虎,马洪生,等.汶川Ms8.0级大震前后的水压致裂原地应力测量[J].地球物理学报,2009,52(5):1395-1401.
[6] 丰成君,陈群策,谭成轩,等.龙门山断裂带东北段现今地应力环境研究[J].地球物理学进展,2013,28(3):1109-1121.
[7] Prater E G,Weiland M.Some factors affecting the response to seismic loading in a soil-structure interaction problem[C]//Papers to Conference on Dynamic Methods in Soil and Rock Mechanics.Karlsruhe:Proc DMSR77,1977:237-254.
[8] 陈健云,胡志强,林皋.超大型地下洞室群的三维地震响应分析[J].岩土工程学报,2001,23(4):494-498.
[9] Kirzhner F,Rosenhouse G.Numerical analysis of tunnel dynamic response to earth motions[J].Tunneling and Underground Space Technology,2000,15(3):249-258.
[10] 戚蓝,马斌,钟登华.断层错位影响下输水管道结构分析[J].水利水电技术,2001,32(12):47-48.
[11] 冯启民,赵林.跨越断层埋地管道屈曲分析[J].地震工程与工程振动,2001,21(4):80-87.
[12] 邓起东,陈立春,冉勇康.活动构造定量研究与应用[J].地学前缘,2004,11(4):383-392.
[13] 付碧宏,时丕龙,王萍,等.2008年汶川地震断层北川段的几何学与运动学特征及地震地质灾害效应[J].地球物理学报,2009,52(2):485-495.
[14] Wallance R E.Earthquake recurrence intervals on San Andreas fault[J].Geological society of America Bulletin,1970,81(10):2875-2890.
[15] 杜方,闻学泽,张培震.鲜水河断裂带炉霍段的震后滑动与形变[J].地球物理学报,2010,53(10):2355-2366.
[16] 王二七,孟庆任,陈智梁.龙门山断裂带印支期左旋走滑运动及其大地构造成因[J].地学前缘,2001,8(2):375-384.
[17] 马保起,苏刚,侯治华,等.利用岷江阶地的变形估算龙门山断裂带中段晚第四纪滑动速率[J].地震地质,2005,27(2):234-242.
[18] Shen Z K,Sun J B,Zhang P Z.Slip maxima at fault junctions and rupturing of barriers during the 2008 Wenchuan earthquake[J].Nature Geoscience,2009,2(10):718-724.
[19] 张永双,雷伟志,石菊松,等.四川省北川县擂鼓盆地地壳稳定性与城镇选址[J].地质学报,2008,82(12):1758-1768.