Based on the monitored deformation of chambers in soft shale during excavation,this paper analyses the features at different deformation stages in process of loss of stability.

The paper introduced the application of chamber blasting and deep hole presplitting blasting to slope cut construction for reference.

Based on the engineering examples, the characteristics of chamber blasting carried out at steep slope topography are analyzed.

Aplication of short delay pre-splitting blasting technology among and inside deep holes in engineering blasting of fragment room;

The chamber blasting with bar charges is used in rock dig of openpit, railway road, hydroelectric industry and other projects.

The linear charge chamber blasting method which was popular in recent years was put into use to reach the purpose of reducing the hidden accident quickly and effectively in mining stope and insuring the copper production smoothly.

Based on the practice of exploiting dam materials for panel rock-fill dam at Dahe reservior (Grangdong Province) by chamber blasting technique, the feasibility of exploiting dam materials by such technique is discussed, also, some viewpoints in the implementation process are put forward.