引水式水电站设计计算书.doc

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1、目录第一章（空）2第二章枢纽布置、挡水及泄水建筑物2第三章水能规划13第四章水电站引水建筑物19第五章水电站厂房30第六章专题机墩结构动力计算33第一章（空）第二章枢纽布置、挡水及泄水建筑物2．2挡水及泄水建筑物2.2.1坝高的确定2.2.1.1设计状况2hl=0.0166×（1.5×16）5/4×61/3=1.6m2Ll=10.4×1.60.8=15.15m校核状况2hl=0.0166×165/4×61/3=0.9653m2Ll=10.4×0.96530.8=10.11m2.2.1.2坝顶高程取坝顶防浪墙高为1.2m，则坝顶高程为241.

2、76-1.2=240.56m2.2.2挡水建筑物2.2.2.1基本剖面应力条件稳定条件坝底宽度取89.7m2.2.2.2实用剖面坝顶宽度(8%~10%)H=(0.08~0.1)×127.56=10.2～12.756m取坝顶宽为12米。2.2.2.3坝基面稳定及应力计算设计状况G=1.0×24×[0.5×9×60+12×127.56+0.5×103×77.7]=.48kN力臂L=36.58m弯矩M=.48×(49.35-36.58)=.71kN.m水压力pxu=×9.81×1×1252=76640.625kN力臂L=41.67m弯矩M=766

3、40.625×41.67=.84kN.mpyu=9.81×1×(9×125-0.5×9×60)=8387.55kNL=4.97mM=83857.55×(49.35-4.97)=.47kN.mPxd=pgH2=×9.81×1×19.12=2163.105kNL=7mM=2163.105×7=15141.735kN.mPyd=9.81×1×21×15.75×0.5=1622.33kNL=93.45mM=1622.33×(93.45-49.35)=71544.753kN.m扬压力u1=98.7×24.525=2420.6kNu2=360.52×1

4、6=5768.32kNu3=0.5×15×360.52=2703.9kNu4=0.5×16×(1226.25-24.525-360.52)=6729.64knu5=0.5×15×(206.01-24.525)=1361.14kNU=u1+u2+u3+u4+u5=18983.6kNL=20.3mM=18983.6×(49.35-20.3)=.58kN.m浪压力L=123.186mM=94.968×123.186=11698.73kN.m稳定满足要求。应力===1319.97(-1024.05)=2.344Mpaor0.295Mpa满足要求。校

5、核状况G=1.0×24×[0.5×9×60+12×127.56+0.5×103×77.7]=.48kN力臂L=36.58m弯矩M=.48×(49.35-36.58)=.71kN.m水压力pxu=×9.81×1×1272=79112.745kN力臂L=42.33m弯矩M=79112.745×42.33=.496kN.mpyu=9.81×1×(9×67+0.5×9×60)=8564.13kNL=4.96mM=8564.13×(49.35-4.96)=.73kN.mPxd=pgH2=×9.81×1×23.32=2662.88kNL=7.77mM=

6、2662.88×7.77=20690.5776kN.mPyd=0.5×9.81×23.3×17.475=1997.16kNL=92.875mM=1997.16×(92.875-49.35)=71544.753kN.m扬压力u1=98.7×24.525=2420.6kNu2=366.4×16=5862.4kNu3=0.5×15×366.4=2748kNu4=0.5×16×(1245.87-24.525-366.4)=6839.56knu5=0.5×15×(228.573-24.525)=1530.34kNU=u1+u2+u3+u4+u5=19

7、400.9kNL=20.79mM=19400.9×(49.35-20.79)=.7kN.m浪压力L=129.12mM=37.35×129.12=4822.632kN.m稳定满足要求。应力===1321.33(-1118.21)=2.439Mpaor0.203Mpa满足要求。2.2.2.4折坡截面稳定及应力计算设计状况G=1.0×24×(12×67.56+0.5×32.47×43)=36211.8kN力臂L=13.78m弯矩M=36211.8×(22.235-13.78)=.769kN.m水压力pxu=×9.81×1×652=20723.62

8、5kN力臂L=21.67m弯矩M=20723.625×21.67=.95kN.m扬压力u1=4×127.53=510.12kNu2=(637.65-127.53)×4/2=102