TUNNEL SMOOTH BLASTING UNCOUPLED SHAPED CHARGE DEVICE AND CHARGE METHOD

摘要

A tunnel smooth blasting uncoupled shaped charge device and a charge method. Said device comprises a C-type shaped pipe, shaped hollow columns are symmetrically provided within the C-type shaped pipe, the cross section of each shaped hollow column is a conical structure, a top end of the shaped hollow column is a shaped embedded end, and the shaped included angle of the shaped embedded end is 30-70 degrees. Compared with the prior art, the tunnel smooth blasting uncoupled shaped charge device and the charge method have a novel structure, strong practicability and a strong combination type, and can select an uncoupled strip with an appropriate length according to the depth of a blast hole, having high adaptability. Before construction, the required charge column, C-type shaped pipe and uncoupled strip are respectively transported to a tunnel face for on-site assembly, the assembly method is simple and time and labor saving, facilitating the management of explosives.