庄水库除险加固工程设计报告(改)

济南市长清区张庄水库除险加固工程设计说明书编制单位：济南市水利建筑勘测设计研究院设计证书编号：151147-sy二○○八年四月批准：张杰审定：张一新审查：刘延杰编写：巩传忠主要参加人员：李晓艳刘玲张浴涛i目录第一章设计提要································································1第二章基本情况································································5§2-1工程概况······························································5§2-2水文气象······························································5§2-3工程地质与水文地质···············································6§2-4工程管理·····························································14§2-5大坝建设及运行情况··············································15第三章大坝防洪标准复核·················································16§3-1概况···································································16§3-2大坝防洪标准复核·················································17§3-3设计洪水推求成果·················································17第四章安全状况······························································24§4-1大坝···································································24§4-2溢洪道································································25§4-3放水洞································································25§4-4工程管理·····························································26§4-5其他···································································26第五章工程设计······························································27§5-1工程等别和标准····················································27§5-2基本资料·····························································27§5-3主要工程内容·······················································27ii§5-4大坝除险加固工程·················································28§5-5放水洞工程··························································34§5-6放水洞水力计算····················································36§5-7溢洪道工程··························································39第六章工程投资预算························································40§6-1编制说明·····························································40§6-2主要工程量及设资·················································43第七章施工组织设计························································45§7-1工程概况·····························································45§7-2施工组织·····························································45§7-3施工条件·····························································45§7-4施工导流·····························································46§7-5施工交通·····························································47§7-6主体工程施工·······················································47§7-7施工总进度··························································49第八章经济评价······························································50§8-1投资和费用··························································50§8-2效益···································································50§8-3计算评价·····························································51§8-4国民经济评价结论·················································53附预算1第一章设计提要一、建设地点济南市长清区五峰山街道办事处的南部，南大沙河三官庙支流上。二、建设性质除险加固三、设计标准1．建筑物等级：水库为小(1)型，工程等别IV等，主要建筑物级别4级。2．洪水标准：依据国家《防洪标准》GB50201-94规定，本工程防洪标准按五十年一遇设计，五百年一遇洪水校核。四、设计依据1.《水利水电工程等级划分及洪水标准》SL252—2000；2.《防洪标准》GB50201—94；3.《水利水电工程设计洪水计算规范》SL44—93；4.《碾压式土石坝设计规范》SL274—2001；5.《碾压式土石坝施工规范》DL/T5129—2001；6.《溢洪道设计规范》SL253—2000；7.《水工砼施工规范》DL/T5144—2001；8.《水利水电工程施工组织设计规范》(试行)SDT338—89；9.《水库工程管理设计规范》SL106—96；10.《土石坝安全监测技术规范》SL60—94；211.《张庄水库大坝安全鉴定评价报告》12．其它国家有关规范、规程五、主要工程内容1．大坝工程：上、下游坡翻压深度0.5～1.0m、原上游干砌块石护坡拆除，新建干砌石上游护坡、坝坡下游草皮护坡、上坝台阶、下游M7.5浆砌石排水沟、坝顶5m宽泥结碎石路面等。2．溢洪道工程：原溢洪道宽为20m,经计算加宽至40m,维持右岸墙不动，向左加宽20m。3．放水洞工程：老放水洞拆除，在原放水洞上新建放水洞。4．新建管理房，防汛路六、工程预算工程总投资365.00万元，其中建筑工程287.65万元，金属结构及安装工程5.28万元，临时工程18.33万元，其他费50.13万元，基本预备费3.61。七、主要工程量1．主要工程量土石方6.00万m3，干砌石3154m3，浆砌石511m3，粗料石129m3，砼及钢筋砼261m3。2．设备0.7×0.7m平面钢闸门1扇，5T螺杆启闭机1台。3．材料及工日钢材12T，工日3.4万个八、主要工程指标31．水库主要性能及洪水指标见表1-1。张庄水库主要性能技术指标表表1-1主要指标五十年一遇(P=2%)500年一遇(P=0.2%)最高水位(m)188.71199.23兴利水位(m)118.00118.00死水位(m)105.0105.0起调水位(m)118.0118.0总库容(万m3)115.6122.9防洪库容(万m3)14.121.4兴利库容(万m3)84.584.5死库容(万m3)17.017.0洪峰总量(万m3)46.687.5洪峰流量(m3/s)94.5133.0最大泄量(m3/s)66.0101.02．大坝主要工程技术指标见表1-2。大坝工程主要指标表表1-2项目现状设计坝型均质土坝均质土坝坝长(m)336336最大坝高(m)20.220.2坝顶宽5.06.3坝顶高程120.2120.2边坡迎水坡1:2.501:2.5~3.0背水坡1:2.0～1:2.51:2.75～1:3.25截渗措施/复合土工膜3．溢洪道主要工程技术指标见表1-3。4溢洪道工程主要指标表表1-3项目现状设计型式宽顶堰宽顶堰堰顶高程(m)118.0118.0堰顶净宽(m)2040最大泄水量(m3/s)6966m3/s101m3/s2%0.2%4．放水洞主要工程技术指标见表1-4。放水洞工程主要指标表表1-4项目现状设计型式浆砌石方涵更换钢筒砼管断面尺寸(m)1.2×1.4φ700进口底高程(m)105.0105.0设计流量(m3/s)11闸门型式铸铁闸门铸铁闸门5第二章基本情况§2-1工程概况张庄水库位于五峰山街道办事处的南部，南大沙河三官庙支流上，流域面积3.5km2，总库容122.9万m3。该水库1978年6月动工，于1978年12月建成。水库枢纽由大坝、溢洪道、放水洞组成。大坝为均质土坝，最大坝高20.2m，坝顶高程120.2m，大坝全长336m；溢洪道设在主坝南端，为开敞式。净宽20m，底高程118m，历史最大泄量55m3/s，1991年汛前在溢洪道新开一宽1.8m、深2m的子槽；放水洞设在主坝桩号0+099m处，为浆砌石箱式涵洞，设0.8×0.8m钢闸门,手摇启闭机已失控，闸门后安装φ300闸阀控制放水。水库总库容122.9万m3，兴利库容84.5万m3，死库容17.0万m3。是一座具有防洪、灌溉、养殖等综合利用的小型水库。§2-2水文气象一、流域概况流域内山势陡峻，岩石主要为花岗石，有风化，大多山沟为片麻岩，土层较薄，土壤保质状况较差，水流充沛，主河道长2km，平均坡降0.036m/m。该水库区域内四季分明，具有春季干旱多风、夏季炎热多雨、秋季温度雨量适中、晚秋干旱、科季寒冷干燥的特点，属6暖温带半湿润大陆性气候季风区域，年平均日照时数2334.6小时，多年平均气温14.1℃，极端最高气温40.6℃(1997年6月22日)，极端最低气温-20.5℃(1981年1月26日)，平均无霜期215天，降雨量年平均680mm，最大降水量111