A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Microseismic Detection of Potential Earth Slumps and Rock Slides
Instrumentation capable of detecting and recording noises in the ground was assembled and used to record landslide noise near highways. Actively creeping landslides generate detectable audio-frequency disturbances. A single channel rock noise survey is not satisfactory until the character of true rock noises have been identified and isolated from extraneous sources of noise at a given site. Individual rock noises from landslides and slopes typically consist of high frequency impulses, ca. 200-1000 cps, followed by several broadening cross-overs. Several events may occur at close intervals creating a disturbance that may last for 1/10 second or more. It is theoretically and practically possible to locate the source of rock noise activity, by a delay time analysis of data from four simultaneously recording rock noise detectors, in landslides involving fairly homogeneous rock. In soft moist clay soils, and in clayey heterogeneous slide debris, while theoretically possible, the delay time analysis is very difficult in practice over long distances owing to the rapid attenuation of rock noises and the variable wave velocity of the medium. (Author)
Microseismic Detection of Potential Earth Slumps and Rock Slides
Instrumentation capable of detecting and recording noises in the ground was assembled and used to record landslide noise near highways. Actively creeping landslides generate detectable audio-frequency disturbances. A single channel rock noise survey is not satisfactory until the character of true rock noises have been identified and isolated from extraneous sources of noise at a given site. Individual rock noises from landslides and slopes typically consist of high frequency impulses, ca. 200-1000 cps, followed by several broadening cross-overs. Several events may occur at close intervals creating a disturbance that may last for 1/10 second or more. It is theoretically and practically possible to locate the source of rock noise activity, by a delay time analysis of data from four simultaneously recording rock noise detectors, in landslides involving fairly homogeneous rock. In soft moist clay soils, and in clayey heterogeneous slide debris, while theoretically possible, the delay time analysis is very difficult in practice over long distances owing to the rapid attenuation of rock noises and the variable wave velocity of the medium. (Author)
Microseismic Detection of Potential Earth Slumps and Rock Slides
R. E. Goodman (author) / W. Blake (author)
1964
52 pages
Report
No indication
English
A note on tsunami amplitudes above submarine slides and slumps
| Online Contents | 2002
A note on tsunami amplitudes above submarine slides and slumps
| British Library Online Contents | 2002
Slides and Slumps on the Coastal Zone Between San Miguel and El Descanso, Baja California, Mexico
| British Library Conference Proceedings | 1993