%0 Journal Article
%A YAO Chen-hui
%A XIA Yu-yun
%A WU Xue-lin
%A LIU Yi
%A CHEN Tie-fei
%A MEN Qing-bo
%T Collapsibility Characteristics of Wind-Blown Sand in Thar Desert, Pakistan
%D 2021
%R 10.11988/ckyyb.20200202
%J Journal of Changjiang River Scientific Research Institute
%P 131-136
%V 38
%N 5
%X The collapsibility characteristics of wind-blown sand in Thar Desert of Pakistan are investigated based on preliminary survey findings and collapsibility test results. The correlation between basic physical indexes of wind-blown sand and collapsibility are also examined. Results demonstrate that the collapsibility of wind-blown sand is mainly distributed in layer ① and layer ②, and the average collapsibility coefficient is 0.039, indicating slightly to moderately collapsible. The grain composition and soluble salt characteristics of wind-blown sand are the main internal basis of collapsible deformation. In addition, strong dispersion is found between collapsibility coefficient and water content of the wind-blown sand. Collapsibility coefficient is also positively correlated with porosity and linearly negatively with dry density. When porosity is smaller than 0.65 or dry density exceeds 1.60 g/cm<sup>3</sup>, wind-blown sand is not collapsible.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20200202