高放废物地质处置新场岩体三维地质模型构建与应用

doi:10.11720/wtyht.2019.0254

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摘要

我国高放废物地质处置经过30多年研究,已初步确定新场为地下实验室推荐场址。开展新场岩体三维地质建模研究,一方面能够充分利用已有资料准确地表达各种地质现象,直观再现地质单元的空间展布及其相互关系;另一方面可以挖掘隐含的地质信息,方便地质分析和工程决策,这在地下实验室研究阶段非常重要。在对新场已有资料综合分析和解译的基础上,建立了岩体的三维地质模型,直观地再现了新场岩体地质环境特征;并基于地质建模结果,开展了钻孔设计等工程应用,取得了较好的效果。本研究可为我国高放废物地质处置后续工作中地质分析与工程设计提供有益参考和技术支持。

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	罗辉
	王驹
	蒋实
	赵宏刚
	金远新

关键词 ：高放废物地质处置, 新场岩体, 三维地质建模, 模型应用

Abstract：

After more than 30 years of research in high-level radioactive waste disposal, China has initially identified Xinchang block as the recommended site of underground laboratory. It is necessary to make full use of the existing data to express all kinds of geological phenomena accurately and intuitively to reproduce the spatial distribution of geological units and their mutual relations. on the other hand, it is possible to mine hidden geological information to facilitate geological analysis and engineering decision-making, which is very important in the research phase of underground laboratory. Based on the comprehensive analysis and interpretation of the existing data, the three-dimensional geological model of Xinchang block has been established. The model reproduced the geologic and environmental characteristics of Xinchang block. Based on the model, we designed the drilling to expose the fault and determined the location and main structure of the underground laboratory, the effect seems good. This study can provide useful reference and technical support for the geological analysis and engineering design of the high-level radioactive waste disposal project in China.

Key words： high-level radioactive waste disposal Xinchang block 3D geological modeling application of model

收稿日期: 2019-01-05 出版日期: 2019-05-31

X771

基金资助:国家自然科学基金资助项目(41502308)

作者简介: 罗辉(1982- ),男,高级工程师,主要从事高放废物地质处置选址和场址评价方面的研究工作。Email: luo1029hui@163.com

引用本文:

罗辉, 王驹, 蒋实, 赵宏刚, 金远新. 高放废物地质处置新场岩体三维地质模型构建与应用[J]. 物探与化探, 2019, 43(3): 568-575.
Hui LUO, Ju WANG, Shi JIANG, Hong-Gang ZHAO, Yuan-Xin JIN. Construction and application of three-dimensional geological model in Xinchang Block for high-level radioactive waste disposal. Geophysical and Geochemical Exploration, 2019, 43(3): 568-575.

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https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2019.0254 或 https://www.wutanyuhuatan.com/CN/Y2019/V43/I3/568

Fig.1 1 甘肃北山新场岩体交通位置

Fig.2 新场岩体地质简图

Fig.3 联井剖面空间分布

Fig.4 物探剖面初步解译的地质剖面

Fig.5 物探剖面XC11初步地质解译

Fig.6 新场岩体三维地质模型
a—提取地质界线生成地表模型;b—生成不同岩性单元模型;c—断裂模型;d—岩体地质模型,包含断裂和岩性信息 1—第四系;2—咸水井群变质中基性火山岩;3—敦煌群鱼脊山组变质岩;4—红柱滩单元角闪辉绿岩;5—新场单元二长花岗岩;6—机井沟单元块状花岗闪长岩;7—鸳鸯沟单元片麻状二长花岗岩;8—红柳井南山单元片麻状花岗闪长岩; 9—钻孔;10—地质界线;11—断层线;12—断裂面

Fig.7 BS35钻孔三维设计

Table 1 BS35钻孔设计参数

Fig.8 地下实验室场址与断裂的关系

Fig.9 地下实验室空间立体图(草案)

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