Ecological and geological security risk assessment of underground space development in cold and arid canyon cities-Taking Ping'an District, Haidong City, Qinghai Province, as an example.

IF 2.5 4区 环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL Water Environment Research Pub Date : 2024-08-01 DOI:10.1002/wer.11113
Shuaiwei Wang, Weichao Sun, Hongming Peng, Youjing Yuan, Xiuyan Wang, Changli Liu
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Abstract

The ecological and geological problems caused by the rise of groundwater level due to the development of underground space in cold and arid canyon cities are particularly typical. Reasonably assessing the ecological and geological security risks of utilizing underground space is conducive to reducing the occurrence of ecological and geological problems during the construction and operation of underground engineering projects. Taking Ping'an District of Haidong City as an example, the topography and geomorphology of the research area were investigated in the field, and the distribution of topography and geomorphology in the research area was understood; through geological drilling and geotechnical engineering testing, the distribution of different strata in the research area was obtained; through pumping and seepage experiments, the recharge, runoff, and discharge relationship between surface water and groundwater in the research area and the water abundance of different strata are obtained, and the causes and mechanisms of geological safety risks in forest and grassland ecosystems, farmland ecosystems, and human settlements ecosystems were analyzed based on literature. Corresponding ecological geological safety risk assessment index systems and methods were established, and the ecological geological safety risks before and after the development of underground rail transit projects along both banks of the Huangshui River in the study area were evaluated. PRACTITIONER POINTS: The development of underground space in canyon type cities can easily lead to ecological and geological problems. Taking Haidong City, Qinghai Province, as an example, this study investigates the causes of ecological and geological problems caused by the development of underground spaces in canyon type cities. An ecological geological security risk assessment index system and method for canyon-type cities were established. An evaluation was conducted on the ecological and geological safety risks before and after the development of the underground rail transit projects on both sides of the research area.

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寒冷干旱峡谷城市地下空间开发生态与地质安全风险评估--以青海省海东市平安区为例
在寒冷干旱的峡谷城市,因地下空间开发导致地下水位上升而引发的生态地质问题尤为典型。合理评估地下空间利用的生态地质安全风险,有利于减少地下工程项目建设和运营过程中生态地质问题的发生。以海东市平安区为例,对研究区的地形、地貌进行了实地调查,了解了研究区的地形、地貌分布情况;通过地质钻探和岩土工程测试,掌握了研究区不同地层的分布情况;通过抽水、渗水试验,掌握研究区地表水与地下水的补给、径流、排泄关系及不同地层的丰水性,并根据文献资料分析森林草原生态系统、农田生态系统、人居生态系统地质安全风险的成因和机理。建立了相应的生态地质安全风险评价指标体系和方法,对研究区湟水河两岸地下轨道交通工程开发前后的生态地质安全风险进行了评价。实践要点:峡谷型城市地下空间开发容易引发生态地质问题。本研究以青海省海东市为例,探讨了峡谷型城市地下空间开发引发生态地质问题的原因。建立了峡谷型城市生态地质安全风险评估指标体系和方法。对研究区域两侧地下轨道交通项目开发前后的生态地质安全风险进行了评估。
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来源期刊
Water Environment Research
Water Environment Research 环境科学-工程:环境
CiteScore
6.30
自引率
0.00%
发文量
138
审稿时长
11 months
期刊介绍: Published since 1928, Water Environment Research (WER) is an international multidisciplinary water resource management journal for the dissemination of fundamental and applied research in all scientific and technical areas related to water quality and resource recovery. WER''s goal is to foster communication and interdisciplinary research between water sciences and related fields such as environmental toxicology, agriculture, public and occupational health, microbiology, and ecology. In addition to original research articles, short communications, case studies, reviews, and perspectives are encouraged.
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