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云龙,男,1985年生,正高级工程师,博士,硕导,主要从事高放废物地质处置和活动构造方向的研究。E-mail:yunlneotectonic@126.com |
收稿日期: 2025-01-05
修回日期: 2025-01-31
网络出版日期: 2025-11-07
基金资助
地下实验室场址地壳稳定性分析与评价研究(FZ2101-6)
Structural stability evaluation method of Underground Research Laboratory (URL) for geological disposal of high-level radioactive waste in China
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YUN Long,male,born in 1985,senior engineer,PhD,focusing on the geological disposal of high-level radioactive waste and the direction of active tectonics. E-mail:yunlneotectonic@126.com |
Received date: 2025-01-05
Revised date: 2025-01-31
Online published: 2025-11-07
Supported by
“Analysis and Assessment of Crustal Stability for the Site Selection of Beishan Underground Research Laboratory”(FZ2101-6)
地下实验室在高放废物处置库选址和确定过程中,起到了承上启下、不可或缺的作用。结合地下实验室所处北山地区的区域地震地质环境,开展高放废物处置地下实验室结构稳定性评价研究。经过十余年的场址稳定性评价工作,建立了地壳稳定区弱活动断裂的活动性鉴定和发震能力评价技术;综合考虑震源-传播路径-局部场地特性的设防地震动的确定方法;提出了大埋深复杂地下实验室系统高效高精度的整体时域分析方法;建立了岩体-结构数值分析模型,揭示其抗震性能及其对地下实验室结构稳定性的影响特征和规律。研究成果确定地下实验室的抗震设防烈度等级,提供关键的结构设计地震动输入参数,给出地下实验室的岩体-结构地震动响应结果,为下一步构建场址描述模型(Site descriptive model,SDM)和进行处置库场址适应性评价提供了支持。
云龙 , 王驹 , 杨晓平 , 陈苏 . 高放废物处置地下实验室结构稳定性评价方法[J]. 世界核地质科学, 2025 , 42(1) : 110 -122 . DOI: 10.3969/j.issn.1672-0636.2025.01.009
Underground Research Laboratories (URLs) play a crucial role in the siting process of high-level radioactive waste disposal. A study of evaluating the structural stability of Beishan URLs site was carried out, considering regional seismic and geological environment. After over a decade of site stability evaluations,techniques were developed to identify weakly active faults in stable crustal areas and assess their seismic potential. A method for determining design seismic motions was proposed,accounting for the source,propagation path,and local site characteristics. An efficient,high-precision time-domain analysis method for deeply buried,complex URL systems was proposed,along with a rock-structure numerical model to reveal seismic performance and its impact on the structural stability of the Beishan URL. The research determined the seismic fortification intensity for the Beishan URL,provided key seismic input parameters for structural design,and presented the seismic response results, supporting the construction of a site descriptive model (SDM) and site suitability assessment for the disposal repository.
图1 北山地下实验室场址区域地震构造图DHF—大泉断裂;LYF—柳园断裂;BYF—白云山-月牙山断裂;JMGF—金庙沟断裂;HQSF—红旗山断裂;JJF—旧井断裂;HLSF—红旗山断裂;TDCF—塔尔湾—登登山—池家刺窝断裂;JWS—嘉峪关—文殊山断裂;KTF—宽滩山断裂;JTNSF—金塔南山断裂;Altyn Tagh Fault—阿尔金断裂;NQLFS—北祁连断裂系;CMF—昌马断裂;DXSF—大雪山断裂。 Fig. 1 Regional seismotectonic map of Beishan URL site DHF-Daquan fault;LYF-Liuyuan fault;BYF-Baiyuanshan-yueyanshan fault;JMGF-Jinmiaogou fault;HQSF-Hongqishan fault;JJF-Jiujing fault;HLSF-Hongqishan fault;TDCF-Taerwan-dengdengshan-cijiaciwo fault;JWS-Jiayuguan-Wenshushan fault;KTF-Kuantanshan fault;JTNSF-Jintananshan fault;Altyn Tagh Fault;NQLFS-North Qilianshan fault system;CMF- Changma fault;DXSF-Daxueshan fault |
图3 旧井断裂平面与三维几何展布图(据参考文献[15]修改)a—旧井断裂周边构造地质图,JJF-1、JJF-2、JJF-3和JJF-4分别代表旧井断裂的4条分支,SYJF—十月井断裂;b—旧井断裂三维解译图,JAMT-1、JAMT-2、JAMT-3和JAMT-4为穿越断裂的4条大地电磁剖面。 Fig. 3 Plane and three-dimensional geometric distribution of Jiujing fault (modified after reference [15]) a-The structural geological map of Jiujing fault,JJF-1,JJF-2,JJF-3 and JJF-4 represent the four branches of the Jiujing fault,respectively. SYJF: Shiyuejing fault;b-Three dimensional interpretation map of Jiujing fault, JAMT-1, JAMT-2, JAMT-3 and JAMT-4 are four magnetotelluric profiles crossing the Jiujing fault. |
图5 Mw 6.5设定地震情景和Mw 7.0设定地震情景a—Mw 6.5设定地震情景;b—Mw 7.0设定地震情景。 Fig. 5 Mw 6.5 sets earthquake scenario and Mw 7.0 sets earthquake scenario a-Mw 6.5 sets earthquake scenario;b-Mw 7.0 sets earthquake scenario. |
图9 模型内不同时刻加速度分布特性a~h—0.05~2.0 s不同时刻加速分布。 Fig. 9 Acceleration distribution characteristics at different times in the model a~h-Acceleration distribution characteristics at different times in the model. |
图10 Mw 6.5和Mw 7.0级地震作用下竖井加速度放大系数与地表峰值加速度分布/单位:m·s-2a—Mw 6.5级地震作用下竖井加速度放大系数与地表峰值加速度分布;b—Mw 7.0级地震作用下竖井加速度放大系数与地表峰值加速度分布。 Fig. 10 Acceleration magnification factor and surface PGA distribution of shafts under Mw 6.5 and Mw 7.0 earthquakes (unit:m·s-2) a-Acceleration magnification factor and surface PGA distribution of shafts under Mw 6.5 earthquake;b-Acceleration magnification factor and surface PGA distribution of shafts under Mw7.0 earthquake.Shaft 1-personnel hoisting shaft;shaft 2-intake shaft;shaft 3-outlet shaft |
图11 Mw 6.5和Mw 7.0级地震动传播的谱特性a—Mw 6.5级地震动传播的谱特性;b—Mw 7.0级地震动传播的谱特性。 Fig. 11 Spectral characteristics of ground motion propagation of Mw 6.5 and Mw M 7.0 a-Spectral characteristics of ground motion propagation of Mw 6.5 earthquake;b-Spectral characteristics of ground motion propagation of Mw7.0 earthquake. |
图12 Mw 6.5和Mw 7.0级地震作用下地下实验室主应力矢量分布/单位:Paa—Mw 6.5级地震作用下地下实验室主应力矢量分布;b—Mw 7.0级地震作用下地下实验室主应力矢量分布。 Fig. 12 Distribution of principal stress vector in underground laboratory under Mw 6.5 and Mw 7.0 earthquakes (unit:Pa) a-Distribution of principal stress vector in the underground laboratory under Mw 6.5 earthquake;b-Distribution of principal stress vector in the underground laboratory under Mw7.0 earthquake. |
图13 Mw 6.5和Mw 7.0级地震作用下三竖井EW和SN向相对位移反应a和b—EW向相对位移;c和d—SN向相对位移。 Fig. 13 Relative displacement response of three vertical wells in east-west and north-south directions under the action of Mw 6.5 and Mw 7.0 earthquakes a and b-relative displacement in east-west direction;c and d-relative displacement in north-south direction. Shaft 1-personnel lift shaft;shaft 2-intake shaft;shaft 3-outlet shaft. |
图14 Mw 6.5和Mw 7.0级地震作用下地下实验室绝对位移分布 (单位:m)a—Mw 6.5级地震作用下地下实验室绝对位移分布;b—Mw 7.0级地震作用下地下实验室绝对位移分布 Fig. 14 Absolute displacement distribution of underground laboratory under the action of Mw 6.5 and Mw M7.0 earthquakes (unit:m) a-Absolute displacement distribution of underground laboratory under the action of Mw 6.5 earthquake;b-Absolute displacement distribution of underground laboratory under the action of Mw7.0 earthquake. |
本工作从第一作者2011年进入核工业北京地质研究院攻读博士学位开始进行,经过十余年的研究,产出的科研成果获得国防科技进步二等奖、中核集团科技进步二等奖。这期间获得了包括核工业北京地质研究院徐国庆和郭永海老师等的指导,得到环境工程研究所历任所长苏锐、陈亮和周志超等所长的大力支持,也得到地震系统包括高孟潭、李小军、冉永康和袁道阳等老师的支持,以及环境工程研究所其他的同事的帮助,这里一并感谢!
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