方格网法土方量计算计算书

方格网法土方量计算书计算依据：《建筑施工计算手册》第三版江正荣编著一、基本参数场地排水要求：双向排水场地排水要求：双向排水纵向排水坡度ix：0.002横向排水坡度iy：0.003方格网边长a(m)：20方格网纵向个数L：6方格网横向个数W：6二、方格网角点原始标高表序号序号1234567110.510.8810.9710.6610.4210.9810.78210.3510.9910.8810.8210.4810.7811310.7710.6510.7910.2510.51111.21410.6510.6611.1211.210.6711.1211.05510.8710.781111.1110.9911.2211.22611.511.2411.4311.4711.2511.3911.5711.5910.8710.9811.0811.3711.7611.83单位(m)三、场地平整高度计算1、场地设计标高的计算H0=(ZH1+2^H2+4^H4)/(4LW)=(44.7+2x220.09+4x273.79)/(4x6x6)=10.97mH］：—个方格共有的角点标咼(m)；H2：二个方格共有的角点标咼(m)；H4：四个方格共有的角点标咼(m)；2、考虑排水坡度影响后各个角点的标高计算取中心位置为H。；各角点的设计标高计算如下，双向排水Hnm=H0±lxix±lyiy

lx、ly:角点于纵、横方向距离场地中心线的距离;xyix、iy：场地纵、横方向排水坡度；xy土：角点比H0高则取"+"号，反之则取"-"号。Hn=10.97-20x3x0.002-20x3x0.003=10.67m同理可得其他角点设计标高，结果见下表：单位m）四、序号12单位m）四、序号1234567110.6710.7110.7510.7910.8310.8710.91210.7310.7710.8110.8510.8910.9310.97310.7910.8310.8710.9110.9510.9911.03410.8510.8910.9310.9711.0111.0511.09510.9110.9510.9911.0311.0711.1111.15610.9711.0111.0511.0911.1311.1711.21711.0311.0711.1111.1511.1911.2311.27土方工程量计算1、方格网角点设计标高表单位（m）序号1234567110.6710.7110.7510.7910.8310.8710.91210.7310.7710.8110.8510.8910.9310.97310.7910.8310.8710.9110.9510.9911.03410.8510.8910.9310.9711.0111.0511.09510.9110.9510.9911.0311.0711.1111.15610.9711.0111.0511.0911.1311.1711.21711.0311.0711.1111.1511.1911.2311.272、各方格网土方工程量计算根据各角点的设计标高和原始标高，计算各角点的施工高度，近而计算出各方

格的零线，如下图所示:■iMI<MflnWMlnM*方格网法计算图由图可知，第1、3、8、15、17、20、22、23、25、32、33方格为两点挖方1方格中：填方量：V+=a(b+c)Yh/8=20x(10+12.667)x0.55/8=31.167m3挖方量：V=a(d+e)》h/8=20x(10+7.333)x0.39/8=16.9m3同理可得其余两点挖方方格的挖填方量，列于下表：方格号1381517202223253233填方量V+(m3)31.1675.37212.78438.471.39629.84123.02726.2565.211.884.105挖方量V-(m3)16.919.26414.74120.2050.775.0814.0046.74757.18239.0460.403第5、7、9、11、14、16方格为一点挖方5方格中：填方量：V+=(a2-bc/2)Yh/5=(202-4.231x8.462/2)x0.97/5=74.127m3挖方量：V=bc》h/6=4.231x8.462x0.11/6=0.656m3

同理可得其余一点挖方方格的挖填方量，列于下表:方格号579111416填方量V+(m3)74.12741.72251.53980.74532.96109.951挖方量V-(m3)0.6562.9581.5240.0014.0321.599第12、18、24、26、28、29、31、34方格为三点挖方12方格中：填方量：V+=bclh/6=16.667xl8.75x0.15/6=7.813m3挖方量：V=(a2-bc/2)》h/5=(202-16.667xl8.75/2)x0.22/5=10.725m3同理可得其余三点挖方方格的挖填方量，列于下表:方格号1218242628293134填方量V+(m3)7.8130.1760.3534.5491.0670.8981.6320.203挖方量V-(m3)10.72520.11218.67839.64541.7632.96899.13853.215第6方格为相对两点挖方6方格中：填方量V+=a2(h43/((h4+h2)(h4+h3))+h13/((h1+h2)(h1+h3)))/6=202x(0.153/((0.15+0.11)x(0.15+0.03))+0.133/((0.13+0.11)x(0.13+0.03)))/6=8.622m3挖方量：V-=a2(2h2+2h3-h4-h1)/6+V+=202x(2x0.11+2x0.03-0.15-0.13)/6+8.622=8.622m3同理可得其余相对两点挖方方格的挖填方量，列于下表:方格号6填方量V+(m3)8.622挖方量8.622

V-(m3)第4、10、13、19方格为四点填方4方格中：填方量：V+=a2(h4+hi+h2+h3)/4=202x(0.03+0.13+0.41+0.41)/4=98m3挖方量：V-=0m3同理可得其余四点填方方格的挖填方量，列于下表:方格号4101319填方量V+(m3)981556364挖方量V-(m3)0000第2、21、27、30、35、36方格为四点挖方2方格中：填方量：V+=0m3挖方量：V=a2(h4+h1+h2+h3)/4=202x(0.22+0.17+