雅西高速冕宁段主要地质灾害类型及发育规律

张瑞端; 郭长宝; 孙进忠; 张永双; 付晓晓; 汪西海

雅西高速冕宁段主要地质灾害类型及发育规律

张瑞端^{1, 2,},
郭长宝²,
孙进忠¹,
张永双²,
付晓晓^{1, 2},
汪西海²

1.
中国地质大学(北京)工程技术学院, 北京 100083
2.
中国地质科学院地质力学研究所, 北京 100081

基金项目:

科技基础性工作专项 2011FY110102

中国地质调查局项目 1212010914025

国家科技支撑计划课题 2011BAK12B09

国家科技支撑计划课题 2012BAK10B02

详细信息

作者简介:
张瑞端(1988-), 男, 硕士研究生, 地质工程专业, 主要从事工程地质与地质灾害方面的研究。E-mail:252273689@qq.com

中图分类号: P642.2
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- 被引次数: 0
出版历程
- 收稿日期: 2013-06-18
- 刊出日期: 2013-12-28

MAIN TYPES AND DEVELOPMENT LAW OF GEO-HAZARDS IN THE MIANNING PART OF YAAN-XICHANG EXPRESSWAY

1.
School of Engineering and Technology, China University of Geosciences, Beijing 100083, China
2.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China

摘要

摘要: 在资料搜集、野外地质调查的基础上，对雅西高速冕宁段主要地质灾害类型及发育规律进行了分析总结，以期减少和预防高速公路遭受崩塌、滑坡和泥石流等的危害。研究表明，该区地质灾害类型主要为滑坡和泥石流，且以泥石流为主，具有分布广、密度大、危害性大等特点，在空间和时间上具有群发性和集中诱发的特征；地质构造、地形地貌、新构造运动、地层岩性是导致雅西高速冕宁段崩塌、滑坡和泥石流灾害频繁发生的内在影响因素，降雨、地震及人类工程活动是最为重要的诱发因素。
- 雅西高速冕宁段 /
- 地质灾害 /
- 发育规律
Abstract: On the foundation of data collecting and field geological survey, main geo-hazard types and development law in the Mianning part of Yaan-Xichang expressway have been summarized to prevent disasters caused by collapses, landslides, debris flows. Studies showed that the main geo-hazard types in the study area were landslide and debris flow, with taking debris flow as the main content. They were characterized by wide distribution, high density and great harmfulness. In space and time, they were group-occurring and concentrative inducing. Geological structure, neotectonic movement and formation lityology were inherent effect factors of frequent occurring of such geo-hazards as collapses, landslides and debris flows in the Mianning part of Yaan-Xichang expressway. Rainfall, earthquake and human engineering activities were most important inducing factors of the geo-hazards.
- Mianning part of Yaan-Xichang expressway /
- geo-hazards /
- development law

HTML全文

图 1 研究区大地构造格局示意图（据文献[1~3]补充修订）

1—中上更新统；2—上新统—第四系；3—新近系；4—晚新生代侵入岩；5—前寒武纪杂岩；6—晚新生代火山岩；7—走滑断裂；8—逆冲断裂；9—晚更新世以来活动断裂和早中更新世活动断裂；10—背斜；11—向斜；12—M_s＞8.0级地震；13—8.0≥M_s＞7.0级地震；14—7.0≥M_s＞6.0级地震

Figure 1. A map showing geotectonic pattern of the study area

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图 2 研究区野外地质灾害调查点示意图

Figure 2. Schematic diagram of field survey points of geological disasters in the study area

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图 3 冕宁县近十年平均降雨量分布

Figure 3. Average rainfall distribution map of the last ten years in Mianning County

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图 4 地质灾害频数与降雨量关系

Figure 4. The relationship between rainfall and geological disaster frequency

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图 5 大热渣滑石场南部崩塌（镜像东）

Figure 5. Collapse located in the south of Darezha quarry

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图 6 大热渣滑石场西侧路边崩塌（镜像北东）

Figure 6. Collapse located in the west of Darezha quarry

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图 7 高枧村高速公路边坡滑坡（镜像东）

Figure 7. Expressway slope landslide in Gaojian village

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图 8 大堡子村巨型古滑坡（镜像东）

Figure 8. Giant ancient landslide in Dabuzi village

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图 9 沙他口村复杂斜坡体平面图

1—公路；2—滑坡周界；3—拉裂缝；4—滑坡陡坎

Figure 9. Plane view of the complex slope body in Shatakou village

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图 10 沙他口村复杂斜坡体

Figure 10. The complex slope body in Shatakou village

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图 11 冕宁县彝海乡勒帕沟泥石流平面分布图

Figure 11. The plane distribution map of Pale debris flow in Mianning county

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图 12 研究区内典型泥石流

Figure 12. Typical debris flows in the study area

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图 13 冕宁县拖乌乡泥石流平面分布图

Figure 13. The plane distribution map of Tuowu debris flow in Mianning county

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