糧田綜合施工組織設(shè)計關(guān)鍵工程設(shè)計

1、5工程設(shè)計5.1 土地平整5.1.1田塊布置考慮到項目區(qū)旱地布置要有助于作物生長發(fā)育、有助于水土保持和 防風(fēng)規(guī)定、有助于管理等規(guī)定，結(jié)合項目區(qū)既有旱地耕作日勺現(xiàn)狀，本次 設(shè)計不變化田塊布置方向，也不變化農(nóng)作物原有日勺耕作方向。5.1.2 土地平整分區(qū)項目區(qū)內(nèi)部分旱地高下不平，影響了土地勺使用率，對項目區(qū)旱地 地塊進(jìn)行局部平整，根據(jù)現(xiàn)狀圖及實際踏勘狀況，地形、面積、空間構(gòu) 造等特點(diǎn)，對項目區(qū)劃分十三個平整區(qū)進(jìn)行局部平整，每個平整區(qū)內(nèi)土 地平整勺填、挖方盡量限制在本平整區(qū)內(nèi)部，追求平整區(qū)內(nèi)土地平整勺 統(tǒng)一化，平整總面積為91.20ha。項目區(qū)局部高下不平旱地5.1.3 土方計算項目區(qū)土地平整內(nèi)容是

2、對項目區(qū)局部旱地進(jìn)行平整。土地平整應(yīng)盡 量根據(jù)自然地形、地勢，合理設(shè)計高程，使挖填土方量最小，同步盡量 滿足機(jī)械作業(yè)和農(nóng)作物耕種B勺規(guī)定。a）平整工程本次設(shè)計采用散點(diǎn)法計算土地平整土方量，對每個平整區(qū)逐個進(jìn)行 計算、記錄平整工程量。因此本次設(shè)計規(guī)劃參照實際地形，進(jìn)行平整土 方量計算。土地平整土方量勺計算重要過程如下：一方面將項目區(qū)劃分為十三 個平整區(qū)，根據(jù)地形走勢及高差需要，再將十三個平整區(qū)根據(jù)實際地勢 狀況劃提成多種平整單元進(jìn)行平整，讀取平整單元內(nèi)最高點(diǎn)、最低點(diǎn)、 次高點(diǎn)、次低點(diǎn)以及代表不同高程位置日勺n個高程點(diǎn)，計算出平均高程， 測點(diǎn)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、；計算 各點(diǎn)與平均高程勺差數(shù)作為施工時應(yīng)掌握勺挖填深度，根據(jù)公式分別計 算出挖填平均深度、挖填方面積、挖填方量。下面以四號平整區(qū)為例，進(jìn)行土方平整工程量計算。四號平整區(qū)平整面積為33656m2。1 )田面設(shè)計高程計算計算公式如下：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 )各測點(diǎn)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。算出各點(diǎn)與H勺差數(shù)作為施工時應(yīng)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 )挖填方面積挖方面積A :c33656 x 0.44=12621m 20.73 + 0.44填方面積Af：A =*f h + h33656 x O.73 = A =*f h + h式中：A平整區(qū)總面積為33656m2。4）挖填土方量計算挖方量V :cVc=Acxhc=12621x0.73=9255m3填方量V :fVf=Afxhf=21035x0.44=9255m3根據(jù)上述計算措施計算出其她田塊日勺平整土方量，見表5.1.3。表 5.1.3表 5.1.3

5、田塊面積 (m2)原地面散點(diǎn)計算平整高差(m)面積典)土方量(m3)編號田塊高程挖深填高挖方區(qū)填方區(qū)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田塊面積 (m2)原地面散點(diǎn)計算平整高差(m)面積典)土方量(m3)編號田塊高程挖深填高挖方區(qū)填

7、方區(qū)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田塊面積 (m2)原地面散點(diǎn)計算平整高差(m)面積典)土方量(m3)編號田塊高程挖深填高挖方區(qū)填方區(qū)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田塊面積 (m2)原地面散點(diǎn)計算平整高差(m)面積典)土方量(m3)編號田塊高程挖深填高挖方區(qū)填方區(qū)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田塊面積 (m2)原地面散點(diǎn)計算平整高差(m)面積典)土方量(m3)編號田塊高程挖深填高挖方區(qū)填方區(qū)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