In:
IOP Conference Series: Earth and Environmental Science, IOP Publishing, Vol. 371, No. 2 ( 2019-12-01), p. 022029-
Abstract:
The occurrence and development of collapsed hills in southern China are significantly affected by soil properties and consolidation characteristics. Three different dry densities were set up in the study. The four-layer soil was subjected to indoor one-dimensional consolidation test, in order to study the consolidation characteristics. The results show that the soil consolidation properties of different layers are different under different dry densities. Under the same load pressure, the four-layer soil’s pore ratio decrease with the increase of dry density; no matter how the dry density changes, the topsoil has a minimum pore ratio as the load increases. The maximum relative deformation rate occurs at the load pressure is 200 Kpa, the overall trend is the inverted “v” trend; the trend of compression coefficient of every treated soil sample is the same as the compression index, and the maximum value is the topsoil when the dry density is 1.40g/cm 3 ; 1.40 g/cm 3 of topsoil is high compressive soil, most of the rest are medium and low compressive soil. In this paper, from the consolidation characteristics of each soil layers under different dry densities reveal the mechanism of collapsing, which provides scientific basis for the prevention and control of collapse.
Type of Medium:
Online Resource
ISSN:
1755-1307
,
1755-1315
DOI:
10.1088/1755-1315/371/2/022029
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2019
detail.hit.zdb_id:
2434538-6
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