The paper undertakes the direct shearing test and consolidation test,researches the inner friction angle,cohesive force value and com-pression modulus of the trial soil,analyzes the effect of water content on shear strength and compression modulus of unsaturated soil,so as to pro-vide some reference.

The geological conditions of slopes are analyzed based on field surveys.The stress strain and acceleration characteristics of hard-soft-interbedded slopes under train vibration load are studied through indoor numerical simulation and calculation.Results show that vibration load causes the most obvious destruction to the slope with a train speed of 350 km per hour.

通过对某铁路特大桥钻孔灌注桩单桩竖向静载荷试验、桩身轴力测试,探讨钻孔灌注桩侧摩阻力发挥的影响因素及荷载传递中的工程性状,为钻孔灌注桩的设计、施工提供参考.

The shear rheologic behaviors of soil in slip zone of a large-scale landslide are studied in this paper. The samples are prepared in accordence with the gravity compaction principles and by Chen Zongli′s the loading method. The rheologic behaviors of soil in slip zone are described by the Burgers visco-elastic Model. From the test results, the long-term strength parameters are obtained, and it′s significance in study of the stability of landslide is also discussed.

In this paper, based on investigation and study of the light of deformation sign of land slides in Wenchuan-Jiaochang section of Upstream of Min River, Evaluation and prediction on stability of 28 famous landslides has been put forward in method of nerve network analysis and the possibility of landslides damming river has also been studied preliminarily.

天然堆石坝溃决洪水,严重威胁下游的安全.在分析和计算岷江上游小海子坝不同溃决方式下的洪水演变规律基础上,对洪水灾害进行初步预测和评价.