Open AccessFormation of soil sinkholes in the form of a collapse pipe
Author(s) -
Tamara Makeeva,
В. А. Трофимов
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/869/7/072048
Subject(s) - sinkhole , geology , massif , geotechnical engineering , stress (linguistics) , rock mass classification , karst , paleontology , linguistics , philosophy , geochemistry
The mechanism of formation of sinkholes of the ground surface in the form of a collapse pipe, which characteristic feature is the existence of almost vertical walls with a sinkhole depth exceeding its lateral dimension, is considered in the article. The authors solve the geo-mechanical problem of stress distribution in the rock mass near the underground cavity that initiates the formation of the sinkhole. The extreme parameters (geometrical and strength) which make it possible to initiate the progressive destruction in the form of a vertical pipe of destruction, are defined according to the integrated criterion of durability. The ratio, hat relates the depth of the cavity location, the horizontal size of the sinkhole, the strength properties of the rocks (adhesion, internal friction angle), and the lateral pressure coefficient in the massif is obtained.