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单位耗药量K值是在水平地面的边界条件下,形成标准抛掷漏斗时爆破单位体积岩石(其中包括28％的岩体被抛掷出爆破漏斗外形成1/3W 的可见漏斗深度)计算所需要的炸药用量。选取过大或偏小的K值,都可能使爆破漏斗的实际尺寸与计算不相符合,使爆炸方量相应地偏大或偏小,对工程质量产生不利影响。由于公路路线所经过的地表岩性和地质构造的变化很大,而K值又是综合反映岩石的物理力学性质、结构、地质构造以及炸药性质等,因此,在较复杂的
The unit dose K is calculated as a function of the horizontal ground boundary conditions required for the calculation of a standard throwing funnel by blasting a unit volume of rock (including 28% of the rock mass thrown out of the blasting hopper to form a 1 / 3W visible funnel depth) The amount of explosives. If the value of K is too large or too small, the actual size of the blasting hopper may not be calculated in accordance with the calculation, so that the blasting volume is correspondingly larger or smaller, which adversely affects the quality of the project. Due to the great changes of the surface lithology and geological structure along the route of the highway, and the K value is a comprehensive reflection of the physical and mechanical properties, structure, geological structure and explosive properties of the rock,