渤海大街-庐山路互通立交工程土石方计算

Calculations of Earthwork in Bohai Street-Lushan Road Interchange Overpass Project

由于基岩为太古代混合花岗岩,风化节理裂隙较多,风化程度差异较大,因此采用钻探、槽探两种方法对渤海大街-庐山路互通式立交工程进行了土石方工程施工等级划分,并应用20 m×20 m方格网法对该区进行了土石方计算。计算结果表明,该区区块面积145 070 m2,第一类土总挖方量为202 562 m3,第二类土总挖方量132 055 m3,第三类土总挖方量31 431 m3.

Beause the bed rock belongs to migmatitic granite of Archeozoic, weathering fractures are much more, and the degree of weathering difference is larger, drilling and trenching survey methods were adopted to grade earthwork construction. 20 m×20 m grid method was adopted to calculate the earthwork of the area, and the results show that the area is 145 070 m2, the total excavation volume of the first type of rock and soil is 202 562 m3, the total excavation volume of the second type of rock and soil is 132 055 m3, and the excavation amount of the third type of rock and soil is 31 431 m3.