Study on improving the penetrability of coal seam with the water pressure blasting in the through beds hole;

Study on charging structure and its use of deep hole water pressure blasting;

According to the peculiarity of explosive load in water,by use of the energy criterion and the sound wave approximate formula,the equivalent static loading on every layer of the wall that is produced by water pressure blasting is calculated in this paper.

Orthogonal experimental analysis of the factors affecting destruction degree caused by hydraulic blasting;

Demolition of reinforced concrete water tower by hydraulic blasting;

Demolishing coal funnel of the old plant of Jiaozuo Power Plant by hydraulic blasting;

On the basis of structural features,it adopts the dismantling method in the way of combing millisecond loose blasting with hydraulic explosion.

To make an effective explosion,hydraulic explosion will be adopted primarily combined with the aid of hole blasting at the bottom of the outside.

This paper analyses appearance which explosion produces impact waves and air pockets etc,researches regular of spreading impact waves and rising air pocket, and applies in hydraulic explosions Calculates weight of explosive package,depth of explosive package and depth of the water.

When water-pressure blasting,initial shock wave parameters in water and shock wave parameters in hole walls are discussed in this paper.

A case of demolishing a reinforced concrete dual ditch by millisecond water-pressure blasting is introduced.

The design and construction technique of roadbed stone deep-hole controlled blasting in Xiajingzhuang and application of water-pressure blasting technique in such fields as improving blasting results and protecting environment are introduced.