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A platform for research: civil engineering, architecture and urbanism
Groundwater environment and related potential engineering disasters of deep underground space in Shanghai
https://orcid.org/0000-0003-1624-3659
Abstract Urban underground space (UUS) in vertical direction is divided into three layers, namely shallow, middle, and deep underground spaces. The utilization of shallow-middle underground space is saturating in Shanghai. Deep underground space (DUS) with the buried depth larger than 50 m will be considered during the UUS development. Especially the UUS between 50 and 65 m below the ground is regarded as the suitable development space in the near future. The Quaternary sediments of Shanghai are composed of an alternated multi-aquifer-aquitard system. Groundwater is regarded as the primary adverse factor for the safety of underground construction during the development of shallow-middle underground space in Shanghai. The confined aquifers relevant to the UUS development from up to bottom contain the shallow aquifers including Aq01, Aq02, and AqI related to the shallow-middle underground space, with deep aquifers including AqII and even AqIII related to the DUS. Since the groundwater environment involving the hydrogeological, hydrogeochemical, and paleochannel characteristics of DUS is different from the shallow-middle underground space, engineering disasters caused by groundwater during the DUS development should be studied according to the specific characteristics of deep aquifers. Regional groundwater withdrawal-recharge, deep foundation pit dewatering, paleochannel, and hydrogeochemical characteristics related to AqII and AqIII should be paid much attention during the development of DUS.
Groundwater environment and related potential engineering disasters of deep underground space in Shanghai
https://orcid.org/0000-0003-1624-3659
Abstract Urban underground space (UUS) in vertical direction is divided into three layers, namely shallow, middle, and deep underground spaces. The utilization of shallow-middle underground space is saturating in Shanghai. Deep underground space (DUS) with the buried depth larger than 50 m will be considered during the UUS development. Especially the UUS between 50 and 65 m below the ground is regarded as the suitable development space in the near future. The Quaternary sediments of Shanghai are composed of an alternated multi-aquifer-aquitard system. Groundwater is regarded as the primary adverse factor for the safety of underground construction during the development of shallow-middle underground space in Shanghai. The confined aquifers relevant to the UUS development from up to bottom contain the shallow aquifers including Aq01, Aq02, and AqI related to the shallow-middle underground space, with deep aquifers including AqII and even AqIII related to the DUS. Since the groundwater environment involving the hydrogeological, hydrogeochemical, and paleochannel characteristics of DUS is different from the shallow-middle underground space, engineering disasters caused by groundwater during the DUS development should be studied according to the specific characteristics of deep aquifers. Regional groundwater withdrawal-recharge, deep foundation pit dewatering, paleochannel, and hydrogeochemical characteristics related to AqII and AqIII should be paid much attention during the development of DUS.
Groundwater environment and related potential engineering disasters of deep underground space in Shanghai
https://orcid.org/0000-0003-1624-3659
Abstract Urban underground space (UUS) in vertical direction is divided into three layers, namely shallow, middle, and deep underground spaces. The utilization of shallow-middle underground space is saturating in Shanghai. Deep underground space (DUS) with the buried depth larger than 50 m will be considered during the UUS development. Especially the UUS between 50 and 65 m below the ground is regarded as the suitable development space in the near future. The Quaternary sediments of Shanghai are composed of an alternated multi-aquifer-aquitard system. Groundwater is regarded as the primary adverse factor for the safety of underground construction during the development of shallow-middle underground space in Shanghai. The confined aquifers relevant to the UUS development from up to bottom contain the shallow aquifers including Aq01, Aq02, and AqI related to the shallow-middle underground space, with deep aquifers including AqII and even AqIII related to the DUS. Since the groundwater environment involving the hydrogeological, hydrogeochemical, and paleochannel characteristics of DUS is different from the shallow-middle underground space, engineering disasters caused by groundwater during the DUS development should be studied according to the specific characteristics of deep aquifers. Regional groundwater withdrawal-recharge, deep foundation pit dewatering, paleochannel, and hydrogeochemical characteristics related to AqII and AqIII should be paid much attention during the development of DUS.
Groundwater environment and related potential engineering disasters of deep underground space in Shanghai
Zhang, Xue-Han (author) / Wang, Xu-Wei (author) / Xu, Ye-Shuang (author)
2022
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
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