Pore pressure and deformation characteristics is studied according to the increasing moisture collapse test information of Weibei-Zhangqiao unsaturated intact loess.

The CFG pile holing without squeeze has the following advantages: multi-story buildings sited on shallow subgrade in a mountainous district can utilize the higher bearing capacity of soil between the piles sufficiently; the mechanism avoiding damage from collapse of subgrade ; outlay; piling pr.

The variation process of pore air pressure and pore water pressure of samples at several states, such as primitive consolidation, as well as collapse state, are tested, respectively.

Discussion on the mechanism of loess collapsibility caused by irrigation from the aggregates stability-losing angle;

According to factors influencing the collapsibility of loess in this paper combined with practical work in Datong Expressway an idea is proposed that applied impact roller in collapsible loess foundation treatment.

Through the living example with adopting lime-soil compaction piles to dispose loess foundation so as to eliminate collapsibility, improve compressibility and increase the strength of foundation, the paper discusses feasibility of compaction piles served as tall buildings foundations, and studies characteristics of foundations settlement.

The principle of dewvaporation desalination method was described while comparing to conventional humidification-dehumidification desalination process.