【48812】路基路面课程规划
一、重力式挡土墙规划···································4
规划参数···················································4
取值为：6m 取值为：7m 取值分别为:1：1.25 取值分别为： 1：1.5
规划资料总结···············································16
四、水泥混凝土路面规划·································19
交通剖析···················································19
交通量年平均增长率7％，沿线可挖掘碎石、砂砾，并有粉煤灰、石灰、水泥等资料供给。
1.1当以规划弯沉值为目标及验算沥青层层底拉应力为规划目标时，轴载换算选用如下的核算公式：
墙身选用2.5号砂浆砌25号片石，墙身砌体容重 ,砌体容许压应力 ,砌体容许剪应力 ,砌体容许拉应力 ；
结各层资料的抗压模量和和劈裂强度···························15
土基回弹模量的确认·········································15
规划目标的确认·············································15
三、沥青混凝土路面规划·································12
轴载剖析···················································12
构组合与资料选取···········································14
核算荷载疲惫应力···········································21
接缝设置····················································22
路肩及路面排水设备··········································22
车辆荷载换算···············································4
土压力核算·················································4
挡土墙核算·················································6
挡土墙墙高H=4m，取根底埋置深度D=1.5m，挡土墙纵向分段长度取L=10m；
墙面与墙背平行，墙背仰斜，仰斜斜度1:0.25， =－14.04，墙底（基底）倾斜度 ，倾斜角 ；
墙顶填土高度 =2m，填土边坡斜度1:1.5， ，轿车荷载边际距路肩边际 ；
式中： ——被换算车辆的各级轴载，（kN），轴载小于25kN的轴载效果不计；
——轴数系数，当轴距离大于3m时，按独自的一个轴核算，当轴距离小于3m时，双轴或多轴时按下式核算
初拟路面结构···············································19
路面资料参数确认···········································20
混凝土板应力剖析及厚度核算·································20
墙面与墙背平行，截面最大应力坐落挨近基底处。由基底应力核算结果知墙身正应力满意墙体资料强度要求。
道路通过区域路基填土为粘土，边坡为梯形边坡，分两级，土力学的目标：塑限14%，液限27%，含水量19%，天然容重18KN/m3，粘聚力19KPa，内摩擦角27°，公路按一级公路规范，双向四车道，规划车速为80Km/h，路基宽度为24.5m，荷载为车辆重力规范值550KN，中心护坡道取2m，车道宽度3.75m，硬路肩2.5m，土路肩0.75m，进行最晦气布载时对左右各布3辆车。
题：广西南宁区域一级公路沥青路面规划广西南宁区域（ 区）某新建双向4车道一级公路，拟选用沥青混凝土路面，路基土为高液限粘土，地下水位为－1m，路基填土高度1.2m，估计通车初年的交通量如下：
二、边坡稳定性规划·····································8
初始条件···················································8
表格数据···················································9
