Results 201 to 210 of about 6,855 (245)

Tropical peatland restoration evaluation using time-series L-band InSAR analysis. [PDF]

open access: yesSci Rep
Zahro Q   +7 more
europepmc   +1 more source

Problems of Ground Subsidence

Journal AWWA, 1955
usually been academic, principally to further his knowledge of the processes of formation and change of the earth's surface or to furnish an explanation of geologic observations. The failure of roof supports in mining operations conducted relatively close to the surface of the ground is one of the commonest causes of subsidence.
R. R. Shoemaker, T. J. Thorley
openaire   +1 more source

Subsidence Over Soft Ground Tunnel

Journal of the Geotechnical Engineering Division, 1975
Knowing the potential causes of and being capable of reducing subsidence during a tunneling operation is important, as well as means of forecasting the magnitude and distribution of settlements prior to tunneling. This paper describes the existing soil and ground water conditions encountered, as well as the construction procedures used in advancing a ...
Roger A. Butler, Delon Hampton
openaire   +1 more source

Geophysical Surveys Across A Ground Subsidence Feature

13th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 2000
In many parts of Southern England the Cretaceous chalk formation exhibits solution features which eventually lead to collapse and void formation. During early formation it is difficult to decide when small subsidence features are due to either man-made industrial/archaeological features or due to water ingress.
P. J. Fenning, A. J. Brown, D. Nind
openaire   +1 more source

Hazards from Ground Subsidence

1975
In the twentieth century particularly, uncontrolled pumping of water and oil from underground has led to sharp economic and cultural losses. Too late, the ground surface has been found to have settled or subsided below natural levels. In this chapter subsidence will be given a broad definition, as any displacement of a generally level ground surface ...
Bruce A. Bolt   +3 more
openaire   +1 more source

Subsidence and ground movements in chalk

Bulletin of the International Association of Engineering Geology, 1992
Subsidences which occur within, or near, the outcrop of the Chalk are due to the collapse either of solution features or of old mine workings. However, only the latter are considered here. Mine workings in the Chalk extend back into the distant past, the most ancient workings being those which Stone Age man excavated in his quest for flint.
F. G. Bell   +3 more
openaire   +1 more source

Subsidence above Shallow Tunnels in Soft Ground

Journal of the Geotechnical Engineering Division, 1977
The paper investigates the influence of the depth of burial and crown settlement on the surface subsidence above shallow tunnels driven in soft ground. Model tests were conducted on tunnels in sand and in clay, and these are compared with one another and with observations of settlements above some real tunnels. There is good agreement between the model
John H. Atkinson, David M. Potts
openaire   +1 more source

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