Taking the value simulation conclusion as the basis of construction plan and through computation,the geometric shape and the drill and blast plan of the partial excavation were determined.

Comprehensive evaluation model based on gray correlative analysis and its application to selecting blasting scheme

Blasting scheme and safety measure of close quarter and high slope

The influence of blasting scheme on the cost of chamber blasting is discussed.

To reduce the vibration from blasting and ensure the safety of flood-control wall,the controlled blasting program of non-electric defonation circuit,span-by-span collapse and multilayer delay was adopted.

Reasonably choosing blasting program and designing blasting network in complicated geological conditions are adopted in the blasting.

Decreasing the ratio of mining to digging, optimizing the blasting parameters, improving the blasting plan, reducting the specific explosive consumption ad the dosage of the cement for supporting, appropriate investment for engineering are the effective measures for decreasing .

The conditions of city environment to restrict blasting engineering are introduced into the standard of evaluating the blasting plan.

Based on the decision-making analytical method of multi-objective grey situation from the grey system theory,the problem of optimizing smooth blasting schemes is researched.