In order to study the influence of brazing temperature and brazing pressure on shearing strength and joint width of brazed diamond tool,hi-frequency induction brazing experiments with PCD compact and cemented carbide YG8 were carried out.

Effect of filler metal thickness on creep for stainless steel plate-fin structure;

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.