Influence of underground space development mode on the groundwater flow field in Xiong’an new area

Gao, Yi-hang; Shen, Junhui; Chen, Lin; Li, Xiao; Jin, Shuang; Ma, Zhenqiang; Meng, Qiang

doi:10.26599/jgse.2023.9280007

Cited by 4 publications

(3 citation statements)

References 40 publications

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“…It is situated in the Jizhong platform depression, where buried faults are relatively well-developed, but modern activities are very weak [43]. The climate of the study area falls under the warm temperate continental monsoon zone, with an average annual temperature of 12.1 • C, average precipitation of 478 mm, and a maximum evaporation of 1762 mm [44,45]. Additionally, the area is home to Baiyangdian Lake, the largest freshwater wetland in the North China Plain [46].…”

Section: Study Areamentioning

confidence: 99%

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Suitability Assessment of Multilayer Urban Underground Space Based on Entropy and CRITIC Combined Weighting Method: A Case Study in Xiong’an New Area, China

Liu,

Li,

2023

Applied Sciences

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Suitability assessment is an essential initial step in the scientific utilization of underground space. It plays a significant role in providing valuable insights for optimizing planning and utilization strategies. Utilizing urban underground space has the potential to enhance the capacity of urban infrastructure and public service facilities, as well as mitigate issues such as traffic congestion and land scarcity. To effectively plan and utilize urban underground space, it is crucial to conduct a suitability assessment. This assessment helps identify the factors that influence the utilization of underground space and their impacts, offering guidance on avoiding unfavorable conditions and ensuring the safety of planned underground facilities. To achieve objective and reasonable evaluation results, this paper proposed an assessment method that combines entropy and CRITIC (CRiteria Importance Through Intercriteria Correlation) weighting. Taking Xiong’an New Area as a study area, a suitability assessment indicator system for underground space was established. The system included criteria indicators and sub-criteria indicators. By analyzing the weights, the study identified the difference of suitability and critical affecting factors for shallow, sub-shallow, sub-deep, and deep underground space. The results showed that deep layers had better suitability than shallow layers in the study area. The regions with inferior and worse suitability were mostly located around Baiyangdian Lake, with proportions of acreage at 54.69% for shallow layer, 42.06% for sub-shallow layer, 41.69% for sub-deep layer, and 42.03% for deep layer. Additionally, the dominant affecting factors of suitability varied in different layers of underground space. These findings provide valuable evidence for the scientific planning and disaster prevention of underground space in Xiong’an New Area, and also serve as references for studying suitability in other areas.

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Section: Study Areamentioning

confidence: 99%

“…Additionally, the area is home to Baiyangdian Lake, the largest freshwater wetland in the North China Plain [46]. imum evaporation of 1762 mm [44,45]. Additionally, the area is home to Baiyangdian Lake, the largest freshwater wetland in the North China Plain [46].…”

Section: Study Areamentioning

confidence: 99%

Suitability Assessment of Multilayer Urban Underground Space Based on Entropy and CRITIC Combined Weighting Method: A Case Study in Xiong’an New Area, China

Liu,

Li,

2023

Applied Sciences

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“…The Rongcheng district, with an acreage of 314 km 2 , is located northwest of Xiong'an New Area in North China [34], which is part of the alluvial plain of the Taihang Mountains [35] (Figure 1). The surface ground elevation displays a characteristic of decreasing from the northwest to the southeast, and varies from 5 m to 26 m with a gradient lower than 2‰ [36].…”

Section: Study Areamentioning

confidence: 99%

Geo-Environment Suitability Evaluation for Urban Construction in Rongcheng District of Xiong’an New Area, China

Liu,

Han

2023

Applied Sciences

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Xiong’an New Area is a national event and a project planned for a millennium of China. Its high-quality construction is of great significance to easing the noncapital functions of Beijing and the coordinated development of the Beijing-Tianjin-Hebei region. As an emerging city, the development and construction of Xiong’an New Area is bound to be restricted by geological and resource conditions. Therefore, geo-environment suitability analysis is the necessary basis of urban development and construction. Geo-environment suitability analysis of urban construction is a complex process that requires various geological indicator information, and relevant expertise to analyze their relevance. This paper focuses on the analytic hierarchy process (AHP) for the assessment of geo-environment suitability for urban construction in Rongcheng district, which is a Start Construction Region in Xiong’an New Area. Multiple factors, including the characteristic value of bearing capacity of foundation soil, land subsidence rate, geological faults, ground fissures, potential liquefied sands, quality of groundwater chemistry, quality of soil chemistry, chemical corrosion of concrete by groundwater, chemical corrosion of steel by groundwater, and enrichment of deep groundwater and geothermal resource, were used for the suitability assessments. From the evaluation achievements, the high and very high suitable lands for urban construction, with an acreage percentage of 89.2%, were located in most parts of the study area. Meanwhile, for another 9.1% of the land, the impacts of geological faults, land subsidence, and potential liquefied sands needed to be noted preferentially for urban construction.

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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

Wang,

Sun,

Peng

et al. 2024

Water Environment Research

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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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Influence of underground space development mode on the groundwater flow field in Xiong’an new area

Cited by 4 publications

References 40 publications

Suitability Assessment of Multilayer Urban Underground Space Based on Entropy and CRITIC Combined Weighting Method: A Case Study in Xiong’an New Area, China

Suitability Assessment of Multilayer Urban Underground Space Based on Entropy and CRITIC Combined Weighting Method: A Case Study in Xiong’an New Area, China

Geo-Environment Suitability Evaluation for Urban Construction in Rongcheng District of Xiong’an New Area, China

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

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