海螺沟生态旅游景区地质环境评价

晏鄂川; 唐辉明; 傅荣华

海螺沟生态旅游景区地质环境评价

1.
中国地质大学工程学院, 湖北武汉 430074
2.
成都理工学院工程地质研究所, 四川成都 610059

基金项目:

四川省交通厅科技资助项目 SCJT9807

详细信息

作者简介:
晏鄂川(1969-), 男, 副教授, 1998年毕业于成都理工学院, 获博士学位, 现在中国地质大学工程学院做博士后研究, 主要从事基础地质、地质工程和环境地质研究

中图分类号: P642.2;X141
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出版历程
- 收稿日期: 2001-03-15
- 刊出日期: 2002-01-25

Assessment of Geoenvironment and Its Countermeasure in Hailuogou Valley

1.
Faculty of Engineering, China University of Geosciences, Wuhan 430074, China
2.
Chengd u Institute of Technology, Chengdu 610059, China

摘要

摘要: 海螺沟作为国家级风景区, 其地表生态现象和生态过程与其地质环境演变有着密切关系, 加之近年来西部大开发中人类活动在沟内陡然增长, 人为致灾陆续发生.在实地调查的基础上, 对该沟的地质环境状况进行了较翔实的评价, 分析了孕育这些人-地互馈演变作用的独特地质背景, 为下一步的合理开发提出了可行的防治对策.调查表明, 沟内的地质环境问题主要包括雪(冰) 崩、融冻、岩土体蠕滑、崩塌、滑坡、泥石流、水土流失和地震等.分析认为导致这些灾害问题的主要作用包括五个方面, 即强烈的新构造抬升运动、复杂的地质构造体系、冰川作用显著、强降水丰沛以及人类活动不当等.最后针对海螺沟开发提出了加强地质环境保护和整治的建议, 对一号营地进行稳定性评价, 二号营地进行崩塌与泥石流整治和热泉水开发, 三号营地进行泥石流沟建设.
- 海螺沟 /
- 地质环境 /
- 地质灾害 /
- 环境效应 /
- 防治对策
Abstract: In Hailuogou, a famous landscape, there is a close relationship between the ecological phenomenon and the evolvement of geological environment. Many natural hazards or unnatural disasters happened because of the rapid growth of population in this region. The authors carefully evaluated the geological environment, and analyzed the particular geology characters in this region. As a result, a series of prevention measures of disasters are brought forward for the further development of the region. According to the field investigation, the main geological problems included snow avalanche, glacier avalanche, frost bursting, creeping slip of rock and soil, falling, landslide, debris flow, soil erosion and earthquake, and the reasons for these problems can be concluded as following: (1) the upward risen of the neo tectonic movement is very strong. (2) the geological structure system is quite complex. (3) the effect of glacierization is rather clear. (4) the heavy precipitated water often happens. (5) human activities are very frequent. At last, for protection of the geological environment in the area, the authors raise three pieces of advice. First, evaluate the stability of the slope in section 1.Second, control of falling and debris flows and exploit thermal springs in section 2. Last, plan a channel for the drainage of debris flow in section 3.
- Hailuogou valley /
- geoenvironment /
- geohazard /
- environment effect /
- preventive controlling measure

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图 1 海螺沟流域地质灾害

1.雪崩槽及雪崩锥; 2.冰(雪) 崩及锥体; 3.崩塌; 4.滑坡; 5.山洪泥石流; 6.冰雪雨水泥石流; 7.暴雨泥石流; 8.滑坡泥石流; 9.土溜滑塌; 10.融冰蠕滑; 11.冰川泥石流; 12.水土流失; 13.现代冰川退缩遗迹; 14.温泉及冷泉; 15.旅游营地编号;

Fig. 1. Geohazard sketch map of Hailuogou valley

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图 2 海螺沟冰碛物与泥石流分布示意

年龄数据均为距今年龄, 由¹⁴C测得.1.现代冰川; 2.末次冰期冰碛; 3.新冰期冰碛; 4.小冰期冰碛垄; 5.泥石流堆积; 6.¹⁴C测年采样点; 7.冰水阶地; 8.新冰期三次冰进阶段; 9.温泉; 10.分水岭; 11.峡谷; 12.陡崖; 13.河流; 14.角峰

Fig. 2. Sketch map of moraine deposit and debris flow fan in Hailuogou valley

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参考文献(7)

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