Research on the Deformation Mechanism and Directional Blasting Roof Cutting Control Measures of a Deep Buried High-Stress Roadway

Table 6

Charge parameters of each test section.

Test section	Charge quantity (volume)	Charge structure	Energy accumulator	Sealing length (m)
1	21	3 + 3+3 + 3+3 + 3+2 + 1	8	3
2	15	3 + 3+3 + 3+2 + 1	6	3
3	12	3 + 3+3 + 2+1	5	3