| 摘要 |
A blasting mat assembly comprising a steel plate member having thickness capable of bearing a blasting pressure of explosives inputted to blasting hole; an elastic member which is fixedly attached along a bottom ed ge of the steel plate member for isolating blasting noise, blasting gas and flying material. Explosives inputted into each blasting hole of blasting region are discharged; and a weight reinforcing member which is welded to a top surface of the steel plate member in a structure of a grid frame made of steel beams.</ SDOAB>
|
