钢筋套筒灌浆灌浆料制作及测试场地平整的土方量计算课件

场地平整的土方量计算《钢筋套筒灌浆灌浆料制作及测试》场地平整的土方量计算主讲教师刁庆东课程导入常见的有场地土方平整。场地平整的土方量计算课程导入实施作业前需准备:场地平整的土方量计算1.计算好场地的土方开挖总量和回填总量2.土方的调配方案3.挖方填方设备的选用计划01案例导入案例导入场地平整是常见的土方施工。场地内不平整、高低起伏、大量的积水或杂物留存,对于相应的建筑工程主体施工和组织是不利的。场地平整的重要性：案例导入一般于工程正式开展前,都要进行专门的场地平整施工。按设计意图清除旧基础清除废水井清除深水坑清除地上附着物案例导入施工的主要内容:土方挖填及相关的清表、排水、清淤等作业。场地平整施工的质量,对于后续施工的费用、进度、质量的影响会很大。所以建设方应认真考虑场地平整工程的实施。01场地内方格网部分平整的土方量计算内容场地内方格网部分平整的土方量计算土质为粉质黏土场地设计泄水坡度：ix=3%iy=2%试确定场地设计标高(不考虑土的可松性影响，如有余土，用以加宽边坡)，并计算填、挖土方量(不考虑边坡土方量)。场地内方格网部分平整的土方量计算第一步建立方格网并编号1234567820米场地内方格网部分平整的土方量计算第一步建立方格网并编号123456789101112131415场地内方格网部分平整的土方量计算第二步求解方格角点高程1234567891011121314151、水准实测进行高程测量场地内方格网部分平整的土方量计算第二步求解方格角点高程1、水准实测AB2、利用地形图上相邻两等高线

的高程，用插入法求得。H4=44.34m场地内方格网部分平整的土方量计算第二步求解方格角点高程得到方格自然地面角点高程如图所示12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.17场地内方格网部分平整的土方量计算第三步求解方格角点设计高程根据挖填平衡原则利用公式求出初始设计高程H0式中：N——

方格网数H1

——一个方格仅有的角点标高H2

——两个方格共有的角点标高H3

——三个方格共有的角点标高H4

——四个方格共有的角点标高场地内方格网部分平整的土方量计算第三步求解方格角点设计高程12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.17按图可知属于：H1的是：1、5、11、15角点；H2的是：2、3、4、6、10、12、

13、14角点；H3的角点不存在；H4的角点是:7、8、9角点。场地内方格网部分平整的土方量计算第三步求解方格角点设计高程12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.17场地内方格网部分平整的土方量计算第三步求解方格角点设计高程12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.7143.7143.7143.7143.7143.7143.7143.7143.7143.7143.7143.71场地内方格网部分平整的土方量计算第三步求解方格角点设计高程12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.17计算方格角点的设计标高双破泄水时按以下公式计算：Hn=H0±lxix±lyiy以场地中心角点8为H0

，如图示抬高场地的右侧和上侧。由已知泄水坡度ix和iy，各方格角点设计标高按式计算:H1=H0—40×3%+20×2%=43.71—0.12+0.04=43.63mH2=H1+20×3%=43.63+0.06=43.69mH6=H0-40×3%=43.71-0.12=43.59m场地内方格网部分平整的土方量计算第三步求解方格角点设计高程得到方格角点设计高程结果如下12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.5943.6543.7143.7743.8743.8343.5543.6143.6743.7343.79场地内方格网部分平整的土方量计算第四步12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.79求解方格角点施工高度方格角点施工高度：hn=Hn-H把每个角点相应参数代入即可求解角点1的施工高度：h1=43.64-43.26=0.390.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38场地内方格网部分平整的土方量计算第五步求零点、求零线计算公式：首先求零点，有关方格边线上零点的位置2~3角点连线零点距角点2的距离为:同理求得：

相邻零点的连线即为零线。场地内方格网部分平整的土方量计算第五步求零点、求零线图解法直接求出零点位置。即用尺在各角点标出相应比例，用尺相接，与方格相交点即为零点位置。见下图：h1+0.30h2-0.20±0551010h7h8+0.7-0.10用尺量出h1＋0.3的刻度用尺量出h2－0.2的刻度两点连线与方格的交点为零点用尺量出h8－0.1的刻度用尺量出h7＋0.7的刻度两点连线与方格的交点为零点两零点连线即为零线场地内方格网部分平整的土方量计算第五步求零点、求零线图解法直接求出零点位置12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38场地内方格网部分平整的土方量计算第五步求零点、求零线得到方格网的零线绘制如下图12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38填方区挖方区场地内方格网部分平整的土方量计算第六步计算方格网内挖填土方量根据方格网挖填图形，按表所列公式计算土方工程量。12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38填方区挖方区场地内方格网部分平整的土方量计算第六步计算方格网内挖填土方量根据方格网挖填图形，按表所列公式计算土方工程量。场地内方格网部分平整的土方量计算第六步计算方格网内挖填土方量12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38方格1276,3498,45109,671211为四角点全挖(填)。场地内方格网部分平整的土方量计算第六步计算方格网内挖填土方量12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38方格1276,3498,45109,671211为四角点全挖(填)。V1276==202/4×（0.39+0.02+0.30+0.65）=136m³V3498=-117m³V45109=-270m³V671211=263m³场地内方格网部分平整的土方量计算第六步计算方格网内挖填土方量12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38方格2378,891413为两挖两填。场地内方格网部分平整的土方量计算第六步计算方格网内挖填土方量12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38方格2378,891413为两挖两填。=20/8×（1.9+17.1）(0.02+0.3)=15.2m³V0380=-12.4m³V013140=25.75m³V8900=-21.8m³V1276=场地内方格网部分平整的土方量计算第六步计算方格网内挖填土方量12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38方格网781312，9101514为一填(挖)三挖(填)。场地内方格网部分平整的土方量计算第六步计算方格网内挖填土方量12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38方格网781312，9101514为一填(挖)三挖(填)。=115.2m³V013140=-128.46m³V1400=0.07m³V7001312=（202-2.9×2）50.3+0.71+0.44=V080=

=-0.05m³场地内方格网部分平整的土方量计算第六步计算方格网内挖填土方量12345678910111213141543.2443.6743.9444.3444.8042.9443.3543.7644.1744.6742.5842.9043.2343.6744.1743.6343.6943.7543.8143.8743.5943.6543.7143.7743.8343.5543.6143.6743.7343.790.390.02-0.19-0.53-0.930.650.30-0.05-0.40-0.840.970.710.440.06-0.38计算结果标注于图上，如下所示：+136