Through a set of dilute experiments on the ceramic casting slip in which the Hei clay was used instead of Su Zhou clay,the sodium silicate and hexametaphosphate with the respective quantities of 0.

The paper introduces the experiment about Luanxian quartzite (instead of Fengrun sandstone) as the casting slip of sanitary porcelain and the determination of the prescription.

Slip casting was a molding method of large area occupied and high labor intensity,but it is a good molding method on the forming of corundum ceramics with the high hard brittle,this method has advantages of extensive adaptability and low production cost.

This paper gives an exposition on the features,technology,requirement and measures of hydraulic sheeting pile construction combining a case of engineering,through which the feasibility of the construction technique combining hydraulic sheeting with cement grouting applied for wharf engineering on soft foundation is proved.

Based on massive domestic and foreign literature and simulationexperiment, in conjunction with the international research project between Chinaand Russia approved by the national office "mechanism and experimental researchof rock mass reinforced by cement grouting" and the Qingdao municipalconstruction fund project" research of bolt-grouting method for .

Based on the characteristics and reasons causing spontaneous combustion in the fully mechanized sublevel caving mining faces in Xiaokang Mine,the technique for injecting white mud to prevent combustion was tested and applied.