Effect of Vibration on the Shear Strength of Thawed Ground (Vliyanie Vibratsionnykh Vozdeistvii na Soprotivlenie Ottayavshego Grunta Sdvigu)

A railway bed experiences extensive effects from passing trains: a variable pulsating load acting on the main area and the vibrations acting on the main area and on the slopes. As is known, pulsating loads on clayey soils lead to fatigue phenomena and to weakening of the clayey soils while the vibra...

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Bibliographic Details
Main Author: Mikhailov,G. D.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1973
Subjects:
Soil Mechanics
Snow
Ice and Permafrost
*Soil mechanics
*Permafrost
*Thawing
Shear strength
Vibration
Clay
Railroad tracks
Translations
USSR
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0772767
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0772767
Description
Summary:A railway bed experiences extensive effects from passing trains: a variable pulsating load acting on the main area and the vibrations acting on the main area and on the slopes. As is known, pulsating loads on clayey soils lead to fatigue phenomena and to weakening of the clayey soils while the vibration effect leads to the origination of thixotropic occurrences in the soils and to their thixotropic weakening. The softening of soils promotes the development of strains in the main area and slopes of the earth bed. In regions with deep seasonal freezing, these deformations are usually intensified in spring on the thawing of soils. Therefore it is considered that the dynamic effects are especially aggressive in thawing soils. Draft trans. of Dinamika Osnovanii i Fundamentov (USSR) v1 p111-115 1969.

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