Through inspecting the hydrographical conditions,geological conditions,climatic conditions,and investigation at scene,the main reason of highway longitudinal cracks is the frost heaving of foundations of the highway.

A class of non-equilibrium problem arising from secondary frost heave;

Quasi-coupling numeric analysis of frost heave effect of horizontal freezing in artificial ground;

Determination of soft rock tunnel frost heaving damage parameter;

Experimental study on frost heaving behaviors of lime soil;

The analysis of reasons for the water leakage through exterior walls and frost heaving and its precautious measures in Xinjiang;

The design of frozen wall in deep alluvium is a difficult problem of freezing shaft sinking, at present, few research have reported in detail on the characteristic of frozen wall with loopy freezing pipe, not to mention the characteristic of its temperature field, moisture field and frozen-heave force of it.

The conclusion is that the frozen-heave force is most lager between center tubes , then outer tubus and inner tubus.

Study on early-age frozen-heave stress and the compressive strength rule of the concrete at subzero temperature;

In this paper,the equipment was designed and developed by ourselves and the regularity of early-age frozen-heave stress of different proportions concrete at subzero temperature was measured(different w/c,anti-freezing agent and air-entraining,fly ash and slag).

In this paper the equipment was designed and developed by ourselves and early-age frozen-heave stress of control concrete at subzero temperature was measured at the frozen temperature of-5℃,-10℃ and-15℃.