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Bài báo - Tạp chí
1 (2021) Trang: 25-31
Tạp chí: Journal of Materials and Construction
Liên kết:

Groundwater is among the Nation’s most important natural resources. It provides drinking water to urban and rural communities, supports
irrigation and industry, sustains the flow of streams and rivers, and maintains riparian and wetland ecosystems. In many areas of the
Nation, the future sustainability of groundwater resources is at risk from overuse and contamination. Groundwater extraction not only
regulates the shape of the ground surface and but also has a significant influence on human life. However, the occurrence of estimating
the settlement of ground surface is still not well-studied. The objective of this study is to assess relation between groundwater pumping
and land subsidence in Cai Rang district, Can Tho city. It is carried out by following steps: (1) Collecting geological prospecting data;(2)
Conducting the method of ground water pumping test; (3) Processing the collected data; (4) Using Riley, Lohman and Poland methods
in estimating the settlement of ground surface; (5) Using Finite element method to stimulate land subsidence. The result shows that the
hydro-geological parameters, K is of 18.05 m/h; S is of 0.0083; T is of 299.608 m2/d. The cumulative land subsidence varies in the range
of from 0 to 0.66 cm. Consequence of the land subsidence does not considerably affect construction work in the area. The analytical
and interpretive methods described in this study will be useful to scientists involved in studies of ground-water hydraulics and aquifersystem
Keywords: groundwater, land subsidence, pumping test, settlement

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