The sedimentation compression lines of natural clays, intrinsic compression lines of reconstituted clays and oedometer compression curves can be normalized by a void index, then the difference of the structural clays and reconstituted clays as well as the gradual damage course of soil structure are showed apparently.

Its compression curve is similar to that of over consolidated soil.

The test results show that the compression curves present a bilinear shape, which is different from that of ordinary normal consolidated clays.

The compressive behavior designated by compressive curve of the soil,which was originally proposed by Lyakhov,is modified in this paper in order to fit the experimental results at low pressures,higher pressures,very high pressures and unloading condition.

The soil-water characteristic curve and compressive curve of the unsaturated and undisturbed loess were obtained by which the first group test to control the vertical pressure for a constant while matric suction increased by step and the second group test to control the matric suction for a constant while vertical pressure increased by step.

Designing the submergence depth of sucker rod pump with curve fitting;

Ultrasound contrast quantitative analyzing based on curve fitting algorithm;

The curve fitting applies in AIDS therapy appraisal and in the curative effect forecast;