The technical measures of reducing the rebound degree of crushed sand sprayed concrete;

Mix ratio design of sprayed concrete for diversion tunnel of Panshitou reservoir and construction;

Endurance research on high-property sprayed concrete;

Study and Application of Artificial Mixed Gravel Sand-shotcrete;

Experimental Study on Steel Fiber Reinforced Shotcrete;

Some ideas for the experience on shotcrete support;

Problems in liquid accelerated agent of spray concrete testing by code of JC4772005;

Application of polypropylene fiber in spray concrete construction;

High performance spray concrete has many feature than concrete such as high performance, high durability; little deformation etc.

Research and application of fly ash spraying concrete in roadway supporting;

Dry-spraying concrete method was selected after comparing advantages and disadvantages of traditional method and spraying concrete method.

This paper introduces the application of wet-spraying concrete in slopping roof,including the mixture proportion design,the selection of materials,local experiments,and construction techniques,etc.

The mating technology such as smooth blasting,jet concrete,wire netting and steel band were used to improve anchor bar supporting property.

This paper analyzes the jet concrete supports technology mechanism,merit,and introduces the construction flow and method.

It introduces applicative effects of modular grouting anchor pole in soft rock tunnel, illustrates united function of anchor pole & jet concrete, discusses merits of modular grouting anchor pole, and expounds & proves its effects combined with practical example of project, which guarantees constructive quality.