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近几年来,我单位铺设几千米长的水泥路面。对于水泥路面的基土下挖深度,我进行了一些公式推导,公式在施工中发挥了重要作用。某一段长度为 l(米)的路基,要求铺设水泥路面,路面铺建成 A 至 B的直线走向,开挖后路基剖面为 A′B′,每隔 d(米)设木桩,用水准仪测出每一桩号的读数。已知 A 点高程为 H_A,A 点下挖深度为Δh_A,试计算图1中1、2、……n 各点基土下挖深度Δh_1、Δh_2……Δh_n。
In recent years, I unit laying several kilometers of cement pavement. For the depth of excavation of the soil foundation of cement pavement, I conducted some formula derivation, the formula played an important role in the construction. A length of l (m) of the subgrade requires the laying of cement pavement, paving the road into a straight line from A to B, after excavation subgrade profile A’B ’, every d (m) to set up stakes, with level measurement The reading of each station. It is known that the elevation of point A is H_A, the depth of digging is Ah_A at point A, and the digging depths Δh_1, Δh_2 ... Δh_n of base soil at points 1, 2, ... n in Fig. 1 are calculated.