大高抗比下的单层药室硐室爆破实践

文中介绍了山体爆破绝对高程H与最小抵抗线W之比大于2时，采用单层药室成功进行四次硐空爆破的实践。认为以H／W比值作为硐室爆破布置药包层数的方式有一定局限性。在岩石性质及地质条件有利情况下，可以采取单层或少于一般计算层数的药室布置进行大H/W下的硐室爆破。

Practice on Single Layer Chamber Blasting the H/W of Which is Larger than 2.0

In the mountain blasting,as the ratio of the absolutely height to the line of the least resistance (H/W) larger than 2.0,we carry out single layer chamber blasting four times successfully.The way that using ratio of H to W as the number of the cartridge layers in the chamber blasting is considered to be limited to some content.Under favorable conditions of the rock mass characteristic and the geology situation,we can carry out chamber blasting the H/W of which is larger than 2.0, adopting the single layer c...