Post-construction measured drawdown rates were higher than pre-construction soil vertical hydraulic conductivity tests in all cases, due to lateral exfiltration from the IWS zones and ET, which are not typically accounted for in pre-construction soil testing.
At the same time, paddy area has been decreasing because of expanding construction land area and soil degradation (Jiang et al. 2002).
To quantitatively assess the effect of land use change and check-dam construction on soil organic carbon (SOC) and total soil nitrogen (TSN) stocks, and to explore the dominate factor influencing SOC and TSN sequestration potential, three sub-catchments controlled by check-dams were selected in the small catchment on the loess plateau of China.
The selected areas are representative of city districts in their construction epoch, soil geology, and urban morphology.
It may be attributed to construction of soil bund and the biological measures practiced by the stakeholders.
These natural resources include engineering construction materials, soil for agriculture, surface and subsurface water resources, and mineral wealth.
Care is needed to ensure that representations of the construction processes, soil and structural behaviour are incorporated in the finite element model at an appropriate level of detail.
The author has set the task to simplify the use of the requirements for the design and construction of soil bases for cylinder open caissons.
In undeveloped countries and areas, much more attention should be paid to the impacts of road construction, specifically soil erosion associated with road edge construction, and relevant measures for forest resource conservation should be formulated before initiating road construction projects.
Since the 1990s, dam construction and soil preservation have decreased sediment load quickly, and the monthly sediment loads were lower in post-dams period than in the pre-dams period.
A major challenge in the design and construction of soil excavation and foundation pit engineering in urban areas is the protection of adjacent underground structures, such as existing tunnels.
