Based on field observation, geological section survey and laboratory study, these phenomena of synsedimentary structures were thought to be results of strong vibration resulted from the earthquakes, and the combinations of vibration and accumulation rocks were formed in adjacent area of the epicenter by vibration liquefaction and vibration distortion in unconsolidated rocks.
BP neural network is applied to evaluate the potential of sandy soil seismic liquefaction The critical depth, under-ground water level, mean standard penetration value, peak of ground acceleration and duration are selected as the indices The forecasting results show the method is feasible [
The method of BP neural network based on MATLAB is introduced. It is applied to the evaluation of the sandy soil seismic liquefaction with satisfactory results.
The problem of the earthquake liquefaction of the saturated silt and clay foundation is the main geological problem,that affects the project of the meeting an emergence water shortage from Xiaolangdi to Beijing,the possibilty of the earthquake liquefaction of silt around the foundation in Yellow River′s beach is judged,the result is that the earthquake liquefaction doesn′t happen under the Ⅶ degree earthquake and natural water level in Yellow River′s beach.
In this paper, the quantitative research of sand and soal vibrating liquefaction potential is made with 2-dimentional information distribution concept and the formula of fuzzy approximate inferrence.
The paper studies the probability of industrial application of vibration liquefaction of bulk solid from the opposite point of view, and proposing turning its harmful effects into benefits.
These experiments examined the problems related to vibration liquefaction of fine-ores and tailings on the basis of DSA-1 type direct shear apparatus, including models of straight tubes, curved tubes and a sandbox.
The changing properties of tailings under vibration and the mechanism of vibration liquefaction and compacting of tailings were studied, and future application of the technique to mines has been put forward.