土方工程施工课设

H11=39.74m H12=38.84m H13=38.24m H14=37.53m H15=36.41m H21=40.43m H22=39.51m H23=38.29m H24=37.22m H25=36.23m H31= 40.49m H32=39.66m H33=38.54 m H34=37.42m H35=36.53m H41= 39.71m H42= 39.21m H43=38.8m H44=38.19m H45=37.28m 2、 求场地设计标高H0：

∑H1=39.74+36.41+39.71+37.28=153.14m

∑H2=38.84+38.24+37.53+40.43+36.23+40.49+36.53+39.21+38.8+38.19=384.49m ∑H3=39.51+38.29+37.22+39.66+38.54+37.42=230.64m H0=（153.14+384.49+230.64）/4*12=38.43m 3、求角点设计标高Hn：

H1=38.43+100*2‰－75*3‰=38.405m H2=38.43+50*2‰－75*3‰=38.305m H3=38.43－75*3‰=38.205m

H4=38.43－50*2‰－75*3‰=38.105m H5=38.43－100*2‰－75*3‰=38.005m H6=38.43+100*2‰－25*3‰=38.555 m H7=38.43+50*2‰－25*3‰=38.415 m H8=38.43－25*3‰=38.315 m

H9=38.43－50*2‰－25*3‰=38.215 m H10=38.43－100*2‰－25*3‰=38.115 m H11=38.43+100*2‰＋25*3‰=38.705 m H12=38.43+50*2‰＋25*3‰=38.605 m

H13=38.43＋25*3‰=38.505 m

H14=38.43－50*2‰＋25*3‰=38.405 m H15=38.43－50*2‰＋25*3‰=38.305 m H16=38.43+100*2‰＋75*3‰=38.855 m H17=38.43+50*2‰+75*3‰=38.755 m H18=38.43+75*3‰=38.655 m

H19=38.43－50*2‰+75*3‰=38.555 m H20=38.43－100*2‰+75*3‰=38.455 m 4、 求施工高度h n：

h1= H1－H=38.405－39.74=﹣1.335 m h 2= H2－H=38.305－38.88=﹣0.535 m h 3= H3－H=38.205－38.24=﹣0.035 m h 4= H4－H=38.105－37.53=0.575 m h 5= H5－H=38.005－36.41=1.595 m h 6= H6－H=38.555－40.43=﹣1.88 m h 7= H7－H=38.415－39.51=﹣1.055 m h 8= H8－H=38.315－38.29=0.065 m h 9= H9－H=38.215－37.22=1.035 m h 1 0= H10－H=38.115－36.23=1.92 m h 11= H11－H=38.705－40.49=﹣1.785 m h 12= H12－H=38.605－39.66=﹣1.055 m

h 13= H13－H=38.505－38.54=﹣0.035 h 14= H14－H=38.405－37.42=0.985 m h 15= H15－H=38.305－36.53=1.775 m h 16= H16－H=38.855－39.71=﹣0.885 m h 17= H17－H=38.755－39.21=﹣0.455 m h 18= H18－H=38.655－38.88=﹣0.145 m h 19= H19－H=38.555－38.19=0.365 m h 20= H20－H=38.455－37.28=1.175 m 5、求零点X

根据h n可以判断零点存在第2、3、6、7、11网格中

X1=50*0.035/（0.035+0.575）=2.87m 根据相似三角形可得： X 2=50*2.87/(2.87+2.9)=24.87m X3=50*0.065/（1.055+0.065）=2.9m 根据相似三角形可得： X4=50—50*1.72/(1.72+2.9)=18.61m X5=50*0.035/（0.035+0.985）=1.72m X6=50*0.145/（0.145+0.365）=14.22m 找出零点后，绘制零线 23X1X2478X3X491213X5141718X6196、填挖土方量 第一格：全挖

V挖1=a2/4(h1+h 2+h3+h4)=502/4(1.335+0.535+1.88+1.055)=3003.125m3 第二格：三挖一填

V挖2 =1/5(a2－bc/2)( h1+h 2+h3)=1/5(502－25.13*2.9/2)(0.535+0.035+1.055)=800.66 m3 V填2=1/6bch4=1/6*25.13*2.9*0.065=0.79 m3 第三格：三填一挖

V挖3 =1/6bch4=1/6*24.87*2.87*0.035=0.42 m3

V填3=1/5(a2－bc/2)( h1+h 2+h3)=1/5(502－24.87*2.87/2)(0.575+0.065+1.035)=825.54 m3 第四格：全填

V填4= a2/4(h1+h 2+h3+h4)=502/4(0.575+1.595+1.035+1.92)=3203.125 m3 第五格：全挖

V挖5 = a2/4(h1+h 2+h3+h4)=502/4(1.88+1.055+1.785+1.055)=3609.375 m3

第六格：三挖一填

V挖6 =1/5(a2－bc/2)( h1+h 2+h3)=1/5(502－31.39*2.9/2)(1.055+1.055+0.035)=1064.69 m3 V填6=1/6bch4=1/6*31.39*2.9*0.065=0.99 m3 第七格：三填一挖

V挖7=1/6bch4=1/6*18.61*1.72*0.035=0.187 m3

V填7=1/5(a2－bc/2)( h1+h 2+h3)=1/5(502－18.61*1.72/2)(0.065+1.035+0.985)=1035.83 m3 第八格：全填

V填8= a2/4(h1+h 2+h3+h4)=502/4(1.035+1.92+0.985+1.775)=3571.875 m3 第九格：全挖

V挖9=a2/4(h1+h 2+h3+h4)=502/4(1.785+1.055+0.855+0.455)=2593.75 m3 第十格：全挖

V挖10=a2/4(h1+h 2+h3+h4)=502/4(1.055+0.035+0.455+0.145)=1056.25 m3 第十一格：半挖半填

V挖11 =a /8(b+c)( h1+ h4 )=50/8(1.72+14.22)(0.035+0.145)=17.93 m3 V填11= a /8(b+c)( h1+ h4 )=50/8(48.28+35.78)(0.985+0.365)=709.26 m3 第十二格：全填

V填12= a2/4(h1+h 2+h3+h4)=502/4(0.985+1.775+0.365+1.175)=2687.5 m3 挖方总量

V挖总=V挖1+V挖2+V挖3+V挖5+V挖6+V挖7+V挖9+V挖10+V挖11

=3003.125+800.66+0.42+3609.375+1064.69+0.187+2593.75+1056.25+17.93 =12146.387 m3 填方总量

V填总=V填2+V填3+V填4+V填6+V填7+V填8+V填11+V填12

=0.79+825.54+3203.125+0.99+1035.83+3571.875+709.26+2687.5 =12034.91m3

X1-1.3352-0.535338.2439.7438.40538.8438.305-0.03538.205437.530.57538.105536.411.59538.005640.43-1.8838.53539.517-1.05538.455838.290.06538.355937.221.03538.255101.9236.2338.155Y11-1.78540.4938.7051239.66-1.05538.6051338.54-0.03538.5051437.420.98538.4051536.530.178538.305Y39.7138.855X39.2138.75538.838.65538.1938.55537.2838.455ii16-0.85517-0.45518-0.145190.365201.175