粮田综合施工组织设计关键工程设计

1、5工程设计5.1 土地平整5.1.1田块布置考虑到项目区旱地布置要有助于作物生长发育、有助于水土保持和 防风规定、有助于管理等规定，结合项目区既有旱地耕作日勺现状，本次 设计不变化田块布置方向，也不变化农作物原有日勺耕作方向。5.1.2 土地平整分区项目区内部分旱地高下不平，影响了土地勺使用率，对项目区旱地 地块进行局部平整，根据现状图及实际踏勘状况，地形、面积、空间构 造等特点，对项目区划分十三个平整区进行局部平整，每个平整区内土 地平整勺填、挖方尽量限制在本平整区内部，追求平整区内土地平整勺 统一化，平整总面积为91.20ha。项目区局部高下不平旱地5.1.3 土方计算项目区土地平整内容是

2、对项目区局部旱地进行平整。土地平整应尽 量根据自然地形、地势，合理设计高程，使挖填土方量最小，同步尽量 满足机械作业和农作物耕种B勺规定。a）平整工程本次设计采用散点法计算土地平整土方量，对每个平整区逐个进行 计算、记录平整工程量。因此本次设计规划参照实际地形，进行平整土 方量计算。土地平整土方量勺计算重要过程如下：一方面将项目区划分为十三 个平整区，根据地形走势及高差需要，再将十三个平整区根据实际地势 状况划提成多种平整单元进行平整，读取平整单元内最高点、最低点、 次高点、次低点以及代表不同高程位置日勺n个高程点，计算出平均高程， 测点高程不小于平均高程日勺是挖方，不不小于平均高程日勺是填方

3、；计算 各点与平均高程勺差数作为施工时应掌握勺挖填深度，根据公式分别计 算出挖填平均深度、挖填方面积、挖填方量。下面以四号平整区为例，进行土方平整工程量计算。四号平整区平整面积为33656m2。1 )田面设计高程计算计算公式如下：平均高程：Hn = 1(Hi+H2+H3+. +H=(15.5+14.8+14.5+13.9+13.9+13.7+13.5+13.8)/8=14.20 ( m )各测点高程不小于平均高程勺H是挖方，不不小于平均高程勺H cf是填方。算出各点与H勺差数作为施工时应掌握勺挖填深度。n挖深填高平均挖深：- Hc m n=(15.5+14.8+14.5 ) /2 - 14.2

4、0=0.73 ( m )平均填高：H，f n n=14.20 - (13.9+13.9+13.7+13.5+13.8)/6=0.44 ( m )挖填方面积挖方面积A :c33656 x 0.44=12621m 20.73 + 0.44填方面积Af：A =*f h + h33656 x O.73 = A =*f h + h式中：A平整区总面积为33656m2。4）挖填土方量计算挖方量V :cVc=Acxhc=12621x0.73=9255m3填方量V :fVf=Afxhf=21035x0.44=9255m3根据上述计算措施计算出其她田块日勺平整土方量，见表5.1.3。表 5.1.3表 5.1.3

5、田块面积 (m2)原地面散点计算平整高差(m)面积典)土方量(m3)编号田块高程挖深填高挖方区填方区挖方填方1-13139616.100.970.731345517941130071300717.2016.101.1017.5016.101.4016.5016.100.4015.5016.100.6015.0016.101.1015.8016.100.3015.2016.100.901-23057716.790.880.661310417473115441154418.0016.791.2117.5016.790.7116.5016.790.2915.5016.791.2917.5016.79

6、0.7116.0016.790.7916.5016.790.292-14049015.860.390.5223137173539090909016.5015.860.6416.3015.860.4416.2015.860.3416.0015.860.1415.3015.860.5615.5015.860.3615.2015.860.662-23648017.090.791.052084615634164531645318.5017.091.4118.0017.090.9115.3017.091.79田块面积 (m2)原地面散点计算平整高差(m)面积典)土方量(m3)编号田块高程挖深填高挖方区填

7、方区挖方填方17.5017.090.4117.5017.090.4116.0017.091.0916.8017.090.2934496415.560.690.2812847321178901890114.9015.560.6615.5015.560.0615.3015.560.2616.9015.561.3415.3015.560.2615.6015.560.0415.4015.560.1643365614.200.730.4412621210359255925515.5014.201.3014.8014.200.6014.5014.200.3013.9014.200.3013.9014.20

8、0.3013.7014.200.5013.5014.200.7013.8014.200.405-11881515.121.321.3294079408124181241815.3015.120.1815.7015.120.5815.3015.120.1813.8015.121.3215.5015.120.385-25368315.320.150.2232210214734724472415.5015.320.1815.4015.320.08田块面积 (m2)原地面散点计算平整高差(m)面积典)土方量(m3)编号田块高程挖深填高挖方区填方区挖方填方15.3015.320.0214.9015.32

9、0.4215.5015.320.1866799715.570.280.373885529142108241082416.0015.570.4315.9015.570.3315.8015.570.2315.4015.570.1715.0015.570.5715.7015.570.1315.2015.570.377-11918515.100.450.601096382224933493316.0015.100.9015.5015.100.4015.0015.100.1015.5015.100.4014.0015.101.1015.2015.100.1014.5015.100.607-2339691

10、5.100.2633969883214.5015.100.6015.0015.100.1015.2015.100.1015.5015.100.4015.2015.100.1015.4015.100.3015.5015.100.408-11971714.530.720.487863118545673567315.5014.530.9715.0014.530.47田块面积 (m2)原地面散点计算平整高差(m)面积典)土方量(m3)编号田块高程挖深填高挖方区填方区挖方填方14.2014.530.3314.0014.530.5315.0014.5014.530.0313.5014.531.038-22

11、981214.800.2329812695615.0014.800.2014.8014.8015.2014.800.4014.8014.8014.7014.800.1014.9014.800.109-114436314.480.350.357218272181252642526415.3014.480.8214.6014.480.1214.6014.480.1214.2014.480.2814.0014.480.4814.2014.480.289-22628414.820.680.348761175235987598715.8014.820.9815.2014.820.3814.6014.82

12、0.2214.5014.820.3214.8014.820.0214.0014.820.8210-15626414.320.720.7228132281321113.6014.320.7215.5014.321.1815.2014.320.88田块面积 (m2)原地面散点计算平整高差(m)面积典)土方量(m3)编号田块高程挖深填高挖方区填方区挖方填方13.2014.321.1214.0014.320.3214.4014.320680.570.282346446928132961329615.5014.680.8214.4014.680.2814.5014.680.1814.2014.680.4815.0014.680.3214.5014.680.1811-14866913.830.290.5832446162239463946314.5013.830.6714.0013.830.1713.5013.830.3314.0013.830.1713.0013.830.8314.0013.830.1711-23697914.270.830.421232624653102721