Considering three factors, temperature, load and thickness and choosing relative factor levels, a total thickness track test on the mutual segment of Wu Huang freeway and the third annular urban road of Wuhan asphalt pavement has been done.

With analysis of the external cause affecting result from the total thickness track test, the extent of compaction on each layer of the sample is under control in two aspects, i.

We compared the differences between the total thickness and the standard thickness and supplied theory support for the total thickness test.

In view of the characteristics of high-value soft and fractured ore rock,a mode of back-filling mining method had been designed with environment reconstructed deep-hole introducing caving,and the safety thickness of artificial roof had been analyzed.

With a lots of cases of piles foundation,the rock-socketed depth and safety thickness of cavities roof have been analysed and discussed.

According to a deep analysis to rock deformation characteristics and its failure mechanism, a thorough discussion about determining the safety thickness is made in this paper.

Study on bearing capacity of rock-socked piles and safe thickness of cave roofs in karst region;

Forecasting model of safe thickness for roof of karst cave tunnel based on support vector machines;

According to the method of determining the safe thickness of arch ring which is reinforced by adding a new arch ring,this paper proposes a method for determining the thickness of inner arch ring under the arch bridge.