拦洪大坝设计计算书

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1、目录第一章调洪演算11.1设计洪水过程线计算11.2泄流能力计算61.3调洪演算181.3.1调洪演算原理....181.3.2基本数据201.3.3调洪演算结果20第二章大坝设计342.1坝顶超高计算342.1.1平均波高及波长计算352.1.2平均波浪爬高362.1.3风浪壅高计算372.2最终坝顶高程确定402.3坝顶宽度计算412.4坝坡设计412.5坝体排水设计422.6坝顶构造422.7坝壳料场的选择422.8填筑标准设计43第三章泄水建筑物计算433.1控制段计算443.2泄流能力计

2、算453.3泄槽的水力计算463.3.1临界水深和临界底坡计算463.3.2水面线计算473.3.3波动掺气水深计算503.4挑流消能计算513.4.3校核情况53第四章输水建筑物544.1洞型尺寸计算544.2水利计算554.2.1水面线的计算554.2.2通气孔面积计算564.2.3高速水流防空蚀计算574.2.4弯道水力计算574.2.5消能计算594.3隧洞结构计算604.3.1衬砌厚度计算604.3.2分缝604.3.3封堵体的计算60第一章调洪演算1.1设计洪水过程线计算根据所给的资料

3、，设计洪水和校核洪水选用时差为2小时而施工期洪水选用1小时，用内插法进行计算，所得结果见表1-1-1：表1-1群安水库洪水过程线时间P=0.1%P=2%典型估量m3/s放大倍比放大流量m3/s修匀流量m3/s典型估量m3/s放大倍比放大流量m3/s修匀流量m3/s7日0:003.4911.1038.7038.703.494.1514.5014.502:003.6311.1040.2540.253.634.1515.0515.054:003.7711.1041.8041.803.774.1515.6

4、015.606:00:004.0911.1045.3045.304.094.1516.9516.958:004.4011.1048.8048.804.404.1518.3018.3010:00:004.2211.1046.7546.754.224.1517.5017.5012:004.0311.1044.7044.704.034.1516.7016.7014:00:003.7611.1041.7041.703.764.1515.6015.6016:003.4911.1038.7038.703.49

5、4.1514.5014.5018:00:003.3211.1036.9036.903.324.1513.7713.7719:003.2411.1036.0036.003.244.1513.4013.4020:00:003.8511.10#VALUE!41.203.854.15#VALUE!16.1222:00:005.0611.10#VALUE!51.605.064.15#VALUE!21.568日0:00:006.2811.1/10.969.7/68.562.006.284.15/3.9626.

6、1/24.927.002:00:006.2810.9068.5077.006.283.9624.9022.004:00:009.0210.9098.3098.309.023.9635.7036.706:00:007.2895.6595.658.783.9634.7534.75338:00:005.5310.9093.0093.008.533.9633.8033.8010:00:005.6010.9086.5386.537.943.9631.4431.4412:00:005.6710.9080.07

7、80.077.343.9629.0929.0914:00:005.7410.9073.6073.606.753.9626.7326.7316:00:005.8110.9067.1367.136.163.9624.3824.3818:00:006.2810.9068.5768.576.293.9624.9024.9020:00:007.1510.9077.9077.907.153.9628.3028.3022:00:009.0210.9098.3098.309.023.9635.7035.709日0

8、:00:0011.6610.90127.15127.1511.663.9646.1546.152:00:0014.3010.90156.00156.0014.303.9656.6056.604:00:0014.8510.90#VALUE!150.5014.853.96#VALUE!53.506:00:0015.4010.9/8.1568.0/126.0145.0015.403.96/2.5961.0/39.950.408:00:0021.308.15174.00174.0021.3