巷道断面面积计算.xls
巷道净宽度B0 0(m)巷道净高度h(m)支护厚度m 墙高(m) B0/3 4.454.453.43.40 01.921.92 巷道净断面面积(m2 2)巷道掘进断面面积(m2 2) B0/4B0/5B0/3B0/3B0/4B0/4B0/5B0/5B0/3B0/3B0/4B0/4 2.292.292.512.5113.7413.7414.1014.1014.3214.3213.7413.7414.1014.10 墙高(m) B0/5B0/5 巷道掘进断面面积(m2 2)