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高放废物处置库新场和芨芨槽预选场址地壳稳定性研究
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摘要
目前国际上公认的、技术上可行的高放废物处置方法为深地质处置,即将废物固化体置于由工程屏障和天然屏障组成的“多重屏障体系”中,以达到与生物圈长期隔离的目的。在高放废物地质处置库的选址过程中,要考虑包括自然地理、水文地质条件及围岩性质等多种因素。当选址工作进入场址比选阶段后,预选场址的地壳稳定性成为影响处置库选址的关键因素之一。本文以新场和芨芨槽预选场址为主要研究区域,以上述预选场址附近及岩体内的断裂为主要研究对象,通过构造地貌调查,探槽开挖、加速器质谱14C测年、光释光测年(OSL)、电子自旋共振(ESR)测年等手段,给出以上预选场址附近及岩体内断裂的活动时代,进而评价新场和芨芨槽预选场址的地壳稳定性。主要取得以下认识:
     1、高放废物北山预选区位于整体稳定的阿拉善地块内。新场预选场址附近和岩体内部主要发育20条断裂,分为5组:(1)北西向的咸水井断裂系,位于新场岩体西北侧,多发育于花岗岩山丘间的沟谷、槽地内,为早、中更新世或前第四纪断裂;(2)近东西向的金庙沟断裂(F6),位于新场岩体北侧,断裂以左旋走滑为主,为前第四纪断裂;(3)北东向旧井断裂系,发育于新场西侧,以正走滑为主,其中旧井断裂为晚更新世晚期以来的活动断裂,但受其规模等因素的影响,对新场预选场址的影响较弱;(4)北东和北北东向的新场岩体断裂系,发育于新场岩体内,主要沿沟谷和槽地发育,以左旋走滑为主,为前第四纪断裂。(5)新场南侧的F95断裂,以左旋走滑为主,为早、中更新世断裂。
     2、芨芨槽预选场址附近和岩体内主要发育12条断裂,分为2组:(1)近东西的红旗山断裂(F1),位于芨芨槽岩体南侧,以右旋剪切为主,为前第四纪断裂;(2)北东向的芨芨槽岩体断裂系,发育于芨芨槽岩体内,以左旋走滑为主,为早、中更新世断裂。
     3、三危山断裂为阿尔金断裂带东北端的分支断裂之一,断裂沿一系列北东向的线性断层三角面分布,断裂的左旋位移速率为0.1~0.4mm/a。探槽揭露出3次古地震事件,分别发生在距今约5.6万年前、距今约4万年前和距今7.4~2.4ka,表明三危山断裂为全新世以来的活动断裂。
     4、旧井断裂在断层几何上呈复杂的张性“帚”状构造,断裂沿线性排列的断层三角面分布,断裂以正断左旋走滑为主,水平位移量为1.3~6.5m,多集中于3.0~4.0m的范围,垂直位移量约3.0m。探槽揭露出2次古地震事件,分布发生于距今7.6~7.8万年之间和距今约2.2万年,表明旧井断裂为晚更新世以来的活动断裂。
     5、参考相关规范,初步给出了高放废物地质处置库区域地壳稳定性分级标准,依据此标准,初步判定新场和芨芨槽预选场址处于地壳稳定区。
Deep geological disposal of high-level radioactive waste is currently consideredas the most technically feasible method for the final safe isolation of high-levelradioactive waste from human environment. That is necessary to select a naturalgeological barrier and set multiple engineered barriers (multi-barrier system) in theunderground repository in order to achieve long-term or permanent isolation of HLWfrom human environment. In the site selection process of HLW waste disposalrepository, many factors should be considered which included natural andgeographical condition, hydro-geological condition, rock properties and so all, amongthem the crust stability is one of the key factors in the repository siting. In this paper,we choose Xingchang and Jijicao selection as a main research area, the faults whichdisgovered in the Xingchang and Jijicao selection and in their vicinity are consideredas the main study object. In order to evaluate the crust stability of Xingchang angJijicao selection, we use the geomorphology survey, trench excavation, AMS14Cdating, OSL dating (OSL), electron spin resonance (ESR) dating and other methods,to identify the activity age of those faults, and the main results obtained are asfollows:
     1. Beishan area is preselected place for high-level radioactive waste disposalrepository in the Alax stable Block. There are20faults in and near the Xingchangselection, which can divide into5groups:(1) Xian Shuijing faults system, which isnorth-west strike faults and in the northwest of the Xingchang selection. Those faultsare distributed in the valley or groove that between the granite hills, and their finalactivity age is early-middle Pleistocene or Pre-Quaternary;(2) Jin Miaogou fault (F6),which was west-east strike fault and in the north of the Xingchang selection. Thisfault is left-lateral strike-slip fault and its final activity age is Pre-Quaternary;(3)Jiujing faults system (F20), which are north-east strike fault and located in the west ofThe Xingchang selection. Those faults belong to the normal and left-lateral strike-slipfault. The Jiujing faults group is in the proximity of the Xingchang selection and itsfinal activity age is late Pleistocene, but it is limited by its scale and something else, the influence of these faults on Xingchang selection is weak;(4) The faults system islocated in the Xingchang rock mass is north-east or North north-east strike faults.Those faults are discovered in the valley or groove that formed between the granitehills, and their final activity age is Pre-Quaternary;(5) The F95fault, which occused inthe south of the Xingchang selection. This fault is left-lateral strike-slip fault and itsfinal activity age is early-middle Pleistocene.
     2. There are12faults in and near the Jijicao selection, which can divide into2groups:(1) Hong Qishan fault (F1), which is est-east strike fault and appears in thesouth of the Jijicao selection. This fault is in the left-lateral ductile shear zone and itsfinal activity age is Pre-Quaternary; the faults system is located in the Jijicao Rockmass is north-east strike faults. Those faults ars left-lateral strike-slip fault and theirfinal activity age is early-middle Pleistocene.
     3、The Sanweishan fault, which belongs to the Altyn Tagh fault, is one of thebranch faults in the north-east of Altyn Tagh Fault. The distribution of this fault is inthe form of a series of linear fault triangle that is north-east strike. The lest-lateralvelocity of the fault is between0.1and0.4mm/a. Three trenching has reveled3paleoseismic events that place took in56ka,40ka and between7.4and2.4ka beforepresent, which means the Sanweishan fault was a Holocene activity fault.
     4. The Jiujing faults group is in the form of complex extensional horsetailsplay structure in geometry. The distribution of this fault group is in the form of aseries of linear fault triangle. This faults group is normal and left-lateral strike. Thehorizontal displacement is1.3~6.5m, and most of them is between3.0to4.0m, andVertical displacement is around3m. The trenching has reveled2paleoseismic eventsthat was occurred in76~78ka and22ka, which means the Jiujing faults groupbelongs to the late Pleistocene activity fault
     5. Refer to relevant secifications, we give the reginal custsal stability preliminarystandard that for the geological dispoal of high-level radioactive waste repository, andaccording to this regulations, we initial consider that the Xingchang and Jijicaoselection is in the crust stable area.
引文
[1]潘自强,钱七虎.高放废物地质处置战略研究.北京:原子能出版社[M],2009
    [2]闵茂中,徐国庆.放射性废物处置原理[M].北京:原子能出版社,1998
    [3]罗上庚.地下实验室高放废物地质处置的重要研究设施[J].辐射防护,2003,23(6):366~371
    [4]温志坚.中国高放废物处置库缓冲材料物理性能[J].岩石力学与工程学报,2006,25(4):794~800
    [5]王驹,徐国庆,郑华铃,等.中国高放废物地质处置研究进展:1985~2004.世界核地质科学[J],2005,22(1):5~16
    [6]王驹,陈伟明,苏锐等,2006,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,25(4):801~812
    [7]中国地震局地壳应力研究所,核工业北京地质研究院,中国高放废物处置库甘肃北山预选区旧井地段主要断裂活动性评价及其构造应力场特征(内部资料)[R],2004
    [8]王峰,王驹,范洪海,等.甘肃北山旧井地区晚第四纪活动断裂分布及其构造意义,地质论评[J],2005,51(3):250~256
    [9]北京中震创业工程科技研究院,核工业北京地质研究院,甘肃北山高放废物处置库预选区断裂活动性调查(内部资料)[R],2011
    [10]郭召杰,张志诚,张臣,等.青藏高原北缘阿尔金走滑边界的侧向扩展-甘肃北山晚新生代走滑构造与地壳稳定性分析[J].地质通报,2008,27(10):1678~1686
    [11]杨合群,李英,赵国斌.北山蛇绿岩特征及构造属性[J].西北地质,2010,43(1):26~36
    [12]任秉琛,何世平,姚文光,等.甘肃北山牛圈子蛇绿岩铷-锶同位素年龄及其大地构造意义[J].西北地质,2001,34(2):21~27
    [13]王立社,杨建国,谢春林,等.甘肃北山火石山地区早古生代蛇绿混杂岩的发现及其地质意义[J].现代地质,2007,21(3):451~456
    [14]郑荣国,吴泰然,张文,等.北山地区月牙山-洗肠井蛇绿岩的地球化学特征及形成环境[J].地质学报,2012,86(6):961~971
    [15]左国朝,刘义科,刘春燕.甘新蒙北山地区构造格局及演化[J].甘肃地质学报,2003,12(1):1~15
    [16]左国朝,李绍雄.塔里木盆地东北缘早古生代构造格局及演化[J].中国地质,2011,38(4):945~960
    [17]左国朝,何国琦.北山板块构造及成矿规律[M].北京:北京大学出版社,1990
    [18]左国朝,冯永忠,刘春燕.甘蒙北山-东疆天山元古代古陆壳特征及其早古生代地壳类型[J].1992,甘肃地质学报,1(1):55~67
    [19]左国朝,刘春燕,白万成,等.北山泥盆纪碰撞造山火山一磨拉石地质构造及地球化学特征[J].1995,甘肃地质学报,3(1):35~43
    [20]于海峰,陆松年,梅华林,等.中国西部新元古代榴辉岩-花岗岩带和深层次韧性剪切带特征及其大陆再造意义[J].岩石学报,1999,15(4):532~538
    [21]甘肃省地质矿产局.甘肃省区域地质志[M].北京:地质出版社,1989
    [22]内蒙古自治区地质矿产局.内蒙古自治区区域地质志[M].北京:地质出版社,1991
    [23]新疆维吾尔自治区地质矿产局.新疆维吾尔自治区区域地质志[M].北京:地质出版社,1993
    [24]国家地震局兰州地震研究所,国家地震局兰州地震研究所.祁连山-河西走廊活动断裂系[M].北京:地震出版社,1993
    [25]李玉龙,张维信,徐叔鹰.陕甘宁青四省(区)新构造的基本特征[J].兰州大学学报,1982,1:106~119
    [26]王琪,张培震,马宗晋.中国大陆现今构造变形GPS观测数据与速度场[J].地学前缘,2002,9(2):415~428
    [27]黄立人,张培震.中国大陆的GPS速度场、地块运动与应变场[J].工程地球物理学报,2004,1(3):204~212
    [28]谢富仁,张世民,窦素芹,等.青藏高原北、东边缘第四纪构造应力场演化特征[J].地震学报,1999,21(502~512)
    [29]沈军,杨晓平.博洛科努断裂西北段古地震形变带初步研究[J].内陆地震,1998,12(3):248~255
    [30]沈军,汪一鹏,李莹甄,等.中国新疆天山博阿断裂晚第四纪右旋走滑运动特征[J].地震地质,2003,25(2):183~194
    [31]杨晓平,沈军.天山内部博罗可努断裂精河-阿拉山口段晚更新世以来的活动特征[J].地震地质,2000,22(3)305~315
    [30]赵凤游,李瑾焕.论疏勒河断裂带[J].中国区域地质,1988,4:332~335
    [31]张裕明,柳覃卓.敦煌三危山断层-一条无强震的第四纪活动断层[J].中国地震,1989,5(3):37~48
    [32]国家地震局《阿尔金活动断裂》课题组.阿尔金活动断裂带[M].北京:地震出版社,1992
    [33]徐锡伟,P. Tapponnier,J. Van Der Woerd,等.阿尔金断裂带晚第四纪左旋走滑速率及其构造运动转换模式讨论[J].中国科学(D辑),2003,33(10):967~974
    [34]王峰,徐锡伟,郑荣章,等.阿尔金断裂带东段地表破裂分段研究[J].地震地质,2002,24(2):145~158
    [35]徐锡伟,于贵华,陈桂华,等.青藏高原北部大型走滑断裂带近地表地质变形带特征分析[J].地震地质,2007,29(2):201~217
    [36]陈柏林,刘建生,王春宇,等.阿尔金断裂昌马大坝-宽滩山段全新世活动特征[J].地质学报,2008,82(4):433~440
    [37]国家地震局兰州地震研究所.昌马活动断裂带[M].北京:地震出版社,1992,
    [38]侯珍清,向光中,吕德微,等.1932年昌马71/2级地震形变带基本特征及昌马地震成因探讨[J].华北地震科学,1987,5(1):9~20
    [39]周俊喜,张生源.1932年昌马了7.5级地震形变带及其构造背景的初步分析[J].西北地震学报,1981,1:92~100
    [40]刘仲方.1932年昌马地震破裂错动过程的初步探讨[J].地震地质,1989,(11):1~6
    [41]侯康明.昌马断裂带的分维几何学特征[J].西北地震学报,1990a,12(3):92~95
    [42]侯康明,郭敬信,侯珍清,等.昌马断裂带的水平断错与强震重复率估计[J].中国地震,1990b,6(3):70~78
    [43]王华林,侯珍清,郭敬信,等.中国甘肃昌马断裂带及其现代活动[J].地震研究,1994,17(1):79~107
    [44]康来迅,王建荣.昌马断裂带地震滑坡的期次与年代[J].地震学报,1995,19(3):396~399
    [45]康来迅.昌马断裂带东段(月牙达板-臭水柳沟)晚更新世晚期以来的断裂运动、滑动速率与古地震[J].地震研究,1986,9(3):343~350
    [46]杨树锋,陈汉林,程晓敢,等.祁连山北缘冲断带的特征与空间变化规律[J].地学前缘,2007,14(5):211~221
    [47]万景林,郑文俊,郑德文.祁连山北缘晚新生代构造活动的低温热年代学证据[J].地球化学,2010,39(5):439~446
    [48]陈柏林,刘建生,张永双,等.玉门断裂全新世活动特征及其与玉门地震的关系[J].地质评论,2009,51(2):138~142
    [49]梁明剑,袁道阳,王爱国.地震活动水平在潜在震源区判定中的应用-以甘肃酒西盆地为例[J].西北地震学报,2009,31(2):136~141
    [50]陈文彬,刘百篪,徐锡伟,等.祁连山西段玉门断裂晚第四纪活动特征及相关问题的讨论[J].西北地震学报,1999,21(4):389~394
    [51]闵伟,张培震,何文贵,等.酒西盆地断层活动特征及古地震研究[J].地震地质,2002,24(1):35~44
    [52]陈永明,赵广垄,马尔曼,等.2002年玉门5.9级地震的震害特征及发震断裂[J].中国地震,2003,19(4):431~436
    [53]何文贵,赵广垄,马尔曼,等.2002年甘肃玉门5.9级地震的地质背景研究[J].地震研究,2004,27(4):263~268
    [54]陈柏林,王春宇,崔玲玲,等.祁连山北缘-河西走廊西段晚新生代逆冲推覆断裂发育模式[J].地学前缘,2008,15(6):260~277
    [55]向宏发,虢顺民.河西走廊玉门-嘉峪关地区活动断裂的初步研究[M].北京:地震出版社,1990
    [56]陈柏林,刘建生,张永双,等.嘉峪关断裂晚第四纪新构造活动特征[J].地质力学学报,2007,13(1):78~85
    [57]何文贵,袁道阳,王爱国,等.嘉峪关断层中段的新活动特征[J].中国地震,2010,26(3):296~303
    [58]王多杰.赤金堡-金塔断裂带的基本特征及有关问题的讨论[J].内陆地震,1988,2(2):142~146
    [59]陈文彬,徐锡伟.阿拉善地块南缘的左旋走滑断裂与阿尔金断裂带的东延[J].地震地质,2006,28(2):319~324
    [60]何文贵,袁道阳,王爱国,等.酒泉盆地北侧金塔南山北缘断裂西段全新世活动特征[J].地震,2012,32(3):59~66
    [61]郑文俊.河西走廊及其邻区活动构造图像及构造变形模式:[博士学位论文][D].北京:中国地震局地质研究所,2009
    [62]黄玮琼,李文香,曹学锋.中国大陆地震资料完整性研究之二-分区地震资料基本完整的起始年分布图像[J].地震学报,1994,16(4):273~280
    [63]焦远碧,吴开统,杨满栋.我国地震台网监测能力及台网观测条件质量评定[J].中国地震,1990,6(4):1~7
    [64]曹娜,雷中生,袁道阳,等.公元180年甘肃表氏地震考[J].地震学报,2010,32(6):744~753
    [65]刘兴旺,雷中生,袁道阳,等.1609年甘肃红崖堡71/4级地震考证[J].西北地震学报,2011,33(2):143~148
    [66]侯康明.1927年古浪8级大震地表破裂特征及形成机制[J].地震地质,1998,20(1):19~26
    [67]侯康明,吴启民.1927年古浪8级大震的基本特征[J].高原地震,1999,11(1):12~18
    [68]李步云.昌马地震应力场及发震机制研究[J].西北地震学报,1994,16(6):14~23
    [69]董治平.一九五四年山丹地震断裂带[M].兰州:兰州大学出版社,2007
    [70]刘洪春,戴华光,李龙海,等.对1954年民勤7级地震的初步研究[J].西北地震学报,2000,22(3):232~235
    [71]薛丁,张建业,包东健,等.1954年7月31日腾格里沙漠北7级地震[J].高原地震,2010,22(2):1~8
    [72]周光,柏自兴.1954年甘肃民勤7级地震调查报告[R]:国家地震局地球物理研究所,中国地震考察(第一卷)[M],北京:地震出版社,1987
    [73]汪素云,俞言祥,高阿甲,等.中国分区地震动衰减关系的确定[J].中国地震,2000,16(2):99~106
    [74]中国地震局地质研究所,新场-向阳山预选地段场址地震安全性分析研究(内部资料)
    [R],2013
    [75]汪一鹏.青藏高原活动构造基本特征[J].见:马宗晋等主编.青藏高原岩石圈现今变动与动力学[M].北京:地震出版社,2011
    [76] Molnar, P., and P. Tapponnier. Cenozoic tectonics of Asia: Effects of a continental collision[J]. Science,1975,189:419~426
    [77] Tapponnier P, Peltzer G, Le Dain A Y, et al. Propagating extronics in Asia: new insights fromexperiments with plasticize [J]. Geology,1982,10(12):611~616
    [78] Peltzer P, Tapponnier P. Formation and evolution of strike-slip faults, and basins during theIndia-Asia collision An experimental approach [J]. J Geophy Res,1988,93(B10):15085~15117
    [79] Avouac J P, Tapponnier P. Kinematic model of active deformation in central Asia [J].Geophys Res Lett,1993,20:895~898
    [80] Replumaz A, and Tapponnier P. Reconstruction of the deformed collision zone between Indiaand Asia by backward motion of lithospheric blocks [J]. J Geophy Res,2003,108(B6):2285,doi:10.1029/2001JB000661
    [81] Armijo R P, Tapponnier P, Han Tonglin. Late Cenozoic right-lateral strike-slip faulting insouthern Tibet [J]. J Geophy Res,1989,94:2787~2838.
    [82] Meriaux, A.-S., F. J. Ryerson, P. Tapponnier, et al. Rapid slip along the central Altyn Taghfault: morphochronologic evidence from Cherchen He and Sulamu Tagh [J]. J. Geophys.Res.,2004,109, B06401, doi06410.01029/02003JB002558.
    [83] England P, and Houseman G. Finite strain calculations of continental deformation2,Comparison with the India-Asia collision [J]. J. Geophys. Res,1986,91:3664~3667.
    [84] England P, and Houseman G. The mechanics of the Tibetan Plateau: Royal society of LondonPhilosophical Transactions [J].1988, ser: A, V326:301~320
    [85] Houseman, G., and England, P., Crustal thickening versus lateral expulsion in theIndian-Asian continental collision [J]. J. Geophy. Res.,1993, v.98, p.12233~12249
    [86]张培震,王琪,马宗晋.中国大陆现今构造变形的GPS速度场与活动地块[J].地学前缘,2002,9(2):430-441.
    [87]张培震,邓起东,张国民,等.中国大陆的强震活动与活动地块[J].中国科学(D辑),2003,333(增刊):12~20.
    [88]张培震,沈正康,王敏,等.青藏高原及周边现今构造变形的运动学[J].地震地质,2004,26(3),367~377
    [89] Zhang P., Shen Z., Wang M., et al. continuous deformation of the Tibetan Plateau from globalpositioning system data [J]. Geology,2004,32(9):809~812.
    [90] Zhang P Z, Molnar P, Xu X W. Late Quaternary and present-day rates of slip along the AltynTagh Fault, northern margin of the Tibetan Plateau [J]. TECTONICS,2007,VOL.26,TC5010, doi:10.1029/2006TC002014
    [91] Molnar, P., Continental tectonics in the aftermath of plate tectonics [J]. Nature,1988.335,131~137
    [92] England, P., and Molnar P. Active Deformation of Asia: From Kinematics to Dynamics [J].Science,1997,Vol.278. No.5338:647~650
    [93]张培震,王敏,甘卫军,等. GPS观测的活动断裂滑动速率及其对现今大陆动力作用的制约[J].地学前缘,2003,10[特刊]:81~92
    [94]邓起东,张培震,冉勇康,等.中国活动构造基本特征[J].中国科学(D辑),2002,32(12):1020~1030
    [95] Zheng Wen-jun, Zhang Pei-zhen, He Wen-gui et al.,Transformation of displacementbetween strike-slip and crustal shortening in the northern margin of the Tibetan Plateau:Evidence from decadal GPS measurements and late Quaternary slip rates on faults [J],2013,Tectonophysics,584:267~280
    [96] Qi Wang, Pei-Zhen Zhang, Jeffrey T. et al., Present-Day Crustal Deformation in ChinaConstrained by Global Positioning System Measurements [J],2001, Science, Reports:574~577
    [97]王萍,王增光,雷生学,等.阿尔金断裂东端破裂生长点的最新构造变形[J].第四纪研究,2006,26(1):108~116
    [98] Wen-Jun Zheng, Pei-Zhen Zhang, Wei-Peng Ge et al. Late Quaternary slip rate of the SouthHeli Shan Fault (northern Hexi Corridor, NW China) and its implications for northeastwardgrowth of the Tibetan Plateau [J],2003, Tectonics, VOL.32:271~293

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