Study on Pre-grouting Technology for Resuming Sinking of 1000m S haft in Tongling;

Application of wholly-covering, zoning and pre-grouting waterproofing techniques in station-to-station tunnels;

Pre-grouting Technology Against Water Seepage Applied to Storage Cavern of Shantou LPG Terminal Project;

Chemical pregrouting treatment applied to water leakage control of fissured surrounding rocks in inclined mine shaft of Zhaozhuang Mine;

Design and Construction of the Grout Pad in High Pressure Pregrouting at Shaft Stopes;

Based on researches before and contraposing the producing geological conditions of 3100 island mining face of Daiyang coal mine, this paper studied the mechanism of pregrouting and lag grouting reinforcing with ZKD.

By means of grouting in advance at the working face and selecting reasoble pouting technology in the tunneling of mix-shaft which gushes out great quantity of water,not only can it improve working condition but also can quicken the pace of the project.

It use Shanxi Lanhua Group Dayang Coal Mine 3100 Isolated working face as study object,apply high water quick-set to grouting in advance of soft top coal,lag grouting to drift.

Practice of advance grouting of pump house in Hexi Gold Mine;

The method of pipe anchor of advance grouting is adopted to avoid flowing sond and piping It argues the mechanism of advance grouting in waterproof and reinforcement.

Using directional technology, the ground pre-grouting holes were bored into the goal strata along the "S" track to give room for freezing holes boring.