Combined with the continuous concrete box beam construction in Haizigou bridge work as example the pumping grouting method of vertical prestressed duct of reinforcement are analyzed from four aspects: drilling, intubation, pumping and grouting; at the same time corresponding resolving measures are proposed.

The craft and the method of blocking water and concreting are simplified by technological reform which speeds up the construction progress,guarantees seals quality,and accumulates the experience.

Reliability design of grouting for stopping up water in rock mass;

An entire reliability design system of grouting for stopping up water in eoilmass has been cstablished in this paper.

Technology of grouting and blocking water in fault broken zone;

Based on failure causation analysis on initial grouting and blocking water method,the grouting and blocking water method was adjusted in time,meanwhile the arrangement of drillholes was coordinated reasonably.

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 .