《毕业设计手算》word版

《《毕业设计手算》word版》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、平曲线设计JD3桩号K6+747.814R=2000mLs=100m计算：q=-p=J=2T-L=2×438.798-867.632=9.964mZH=K6+747.814+438.798=K7+186.612各曲线要素计算如下表:JDZHHYYHHZQZJD12462.7662077.0592177.0592737.4742837.4742457.266JD25408.9924841.7414941.7415853.9625953.9625397.852JD36747.8146312.2376412.2377073.9

2、697186.6126743.103JD48082.467734.1067834.1068323.0248423.0248078.565竖曲线设计变坡点桩号K5+299.588高程为506.284m,,i1、计算竖曲线要素,为凸形曲线长:m切线长:m外距:2、计算设计高程竖曲线起点桩号=(K5+299.588)-45=K5+254.588竖曲线起点高程=506.284-45×0.44%=506.086m竖曲线终点桩号=K5+299.588+45=K5+344.588m竖曲线终点高程=506.284-45×1.56%=50

3、5.582m各变坡点的竖曲线要素列入下表：变坡点桩号ω曲线长L切线长T外距E起点桩号起点高程终点桩号终点高程K0+898.7920.02370.1435.070.205K0+863.722525.717K0+933.862525.377K1+770.2360.029130.7365.360.475K1+704.874530.650K1+835.599529.645K2+491.4340.02676.6838.340.245K2+453.094515.931K2+529.774515.207K3+453.0140.0231

4、01.3450.670.286K3+402.344518.133K3+503.684517.332K4+308.8160.02470.8035.400.209K4+273.416502.577K4+344.216502.055K5+299.5880.02090.3645.180.227K5+254.408506.084K5+344.768505.577K6+122.4990.02586.7343.370.269K6+079.134494.087K6+165.864493.804K6+760.0690.027119.215

5、9.600.395K6+700.467498.682K6+819.672498.191K7+441.9230.02882.7141.360.285K7+400.568488.107K7+483.278487.811K8+075.9000.031139.2869.640.539K8+006.263493.151K8+145.538492.418K8+668.2120.036108.0954.050.487K8+614.167482.696K8+722.257482.401边坡稳定性验算已知路基高度h=6.43m顶宽12m,

6、其横断面初步拟定如图所示，路基填土为粘性液限粘土，土的粘聚力c=10Kpa,容重，内摩擦角为35（），荷载为公路二级，试分析其边坡稳定性。（1）以1：50比例绘制出路堤横断面（2）将公路二级换算成土柱高，设其中一辆停歇在路肩，另一辆以最小间距d=0.4m与它并排，按式（7-4）换算土柱高为N为车辆系数等于2,d为车身之间的净距等于0.6，b取车宽2.5m故（3）按4.5H法确定滑动圆心辅助线，由边坡斜度为1：1.5，查表7-1得，，据此两角分别自坡脚和左顶点作直线相较于O点，B0的延长线，即为滑动圆心辅助线。（4）绘出四

7、条不同位置的滑动曲线1、一条通过路基的右边缘，2、一条通过距右边缘1/4路基宽度处，3、一条通过路基中线，4、一条通过距左边缘1/4路基宽度处（5）将圆弧范围内土体分成8-10段（6）算出滑动曲线每一分段中点与圆心竖线之间的偏角式中（7）计算每一段的面积；其中包括荷载换算成土柱部分的面积在内。（8）以路堤纵向长度1m,计算出各分段的重力（9）将每一段的重力化为二个分力：在滑动曲线法线方向分力;在滑动曲线切线方向分力并分别求出两者之和和。（10）算出滑动曲线圆弧长L（12）计算稳定系数、过路基右边缘分段(KN)(KN)L(

8、m)10.970.241.730.67.3429.6829.820.820.5720.29365.22208.18299.4830.570.8225.94466.92382.87266.1440.310.9530.61550.98523.43170.850.060.9929.82536.76531.3932.216-