Discussion on the settlement calculation method of treating soft soil foundation using sand drain preloading method;

Logistic growth model and its applicability for predicting settlement during the whole process;

Experiment and study on the future settlement in the bank stabilization by hydraulic fill;

Studied automated monitoring and control of load,automatic measurement of settling volume of test pile,in construction pile foundation test has been developed which comprises of pressure and placement sensors,data transferring and processing,data display and alarm system to achieve automation of pile foundation test procedures.

The grey prediction of settlement quantity of bridge support;

Based on the datum acquired from six observation ports around house building and settlement quantity of side buildings conclusion is illustrated that the determination and implementation of this dewatering plan are successful.

Through comparison the relationships between settlements and bottom shapes are found out, which provides references for designers.

According to the elastic foundation encountered in subgrade treatment the gravelly soils is applied and settlements is used as the standard to control the compactness of gravelly soil to ensure the construction quality of subgrade.

The BP model used for predicting the settlements of ground is particular.

According to the subsidence characters of building with soft soil foundation, a prediction model for subsidence of building by Verhulst modeling method has been set up.

The subsidence history of the basin is shown to consist of .

Dry and wet atmospheric deposition fluxes of elements in the Plain area of Beijing Municipality,China;

The results showed that the deposition flux of Pb、Cu、Cd were decreased and in the order of Pb>Cu>Cd.

The results showed that the deposition flux of Al, Fe, and Mn are about 50% in the whole year in spring, and is the least in summer, accounting for less than 10%.