目录1工程概况··········································································11.1地理位置与工程简介····················································································11.2工程建设相关单位·······················································································31.3完成分部工程、单元工程质量评定情况····························································31.4主要施工人员投入情况·················································································41.5主要工程技术指标·······················································································51.6工程实施情况·····························································································71.7各分部工程开工、完工时间···········································································82监理规划及监理工作制度·····················································82.1监理组织机构的设置及监理人员组成·······························································82.2监理规划及监理工作制度建立········································································82.3监理实施细则及质量检测·············································································132.4监理工作依据····························································································162.5工程项目划分····························································································183监理过程·········································································193.1进度控制··································································································193.2质量控制··································································································203.3投资控制··································································································393.4合同管理、信息管理与安全管理····································································403.5安全管理··································································································433.6协调工作··································································································454监理效果·········································································454.1进度控制评价····························································································454.2质量控制评价····························································································474.3投资控制评价····························································································474.4综合评价··································································································475经验与建议······································································485.1经验········································································································485.2建议········································································································486附件···············································································496.1监理项目部主要工作人员情况表····································································496.2工程大事记·······························································································49郧西县马鞍关水库除险加固工程建设监理工作报告11工程概况1.1地理位置与工程简介马鞍关水库位于湖北省十堰市郧西县马鞍关镇,距郧西县城35.0km,所在河流为天河支流渗峪河,坝址以上承雨面积105.4km2,总库容1730万m3,工程等别为Ⅲ等,主要建筑物级别为3级。水库原洪水标准为50年一遇设计,200年一遇洪水校核,复核洪水标准为50年一遇设计,500年一遇洪水校核,设计洪水位为▽361.47m(吴淞高程,以下同),校核洪水位为▽362.87m,正常蓄水位为▽357.50m,灌溉死水位为▽337.00m,发电低水位▽340.00m。2007年8月9日特大洪水后,将洪水标准提高到100年一遇设计洪水,1000年一遇校核洪水,坝顶高程▽365.3m,加固后最大坝高43.3m。是一座以发电为主,兼有防洪、灌溉、水产养殖、城镇供水等综合效益的中型水利工程。马鞍关水库枢纽工程由大坝、坝身泄洪表孔、发电输水系统、电站厂房、灌溉渠道等组成。大坝为浆砌块石双曲拱坝,坝顶高程▽362.00m,最大坝高40m,建基面高程▽322.00m,双曲拱坝底厚7.95m,坝底弧长59.0m,坝顶厚3.0m,坝顶弧长112.35m。左坝肩▽340.50m起设推力墩,墩长32.5m,顶宽7m,右坝肩设支墩,坝肩基岩进行固结灌浆。坝下设一圆形泄空底孔,内径为1.0m,进口由闸门、出口由闸阀控制。坝顶表孔溢流堰为非真空实用堰。建筑物级别为3级。堰顶高程▽357.50m,设6孔,单孔净宽8.0m;溢流段净宽48.0m,采用鼻坎挑流。坝址基础岩石以碳质云母石英片岩为主,右岸部分地段为绿泥石片岩。输水隧洞进水塔(竖井),内径4.0m,启闭平台高程▽363.50m,其上为启闭机房,竖井进口设有1块平面钢闸门,孔口尺寸为1.20×1.20m(宽×高)。输水隧洞为钢筋砼结构,全长287.0m,底高程▽337.0m。其中,从进口至180.0m处其内径为1.20m,衬砌厚度0.40m;从180.0m处至出口其内径为1.40m,衬砌厚度0.40m,出口接发电厂房。郧西县马鞍关水库除险加固工程建设监理工作报告2一级坝后引水式电站装机2×630kw,厂房面积为18.50×10.60m,主机布置采用垂直进水方式,尾水肢解进入幸福渠道,设计尾水高程▽305.05m。尾水直入下游河道,二级电站装机2×500kw。本次提请验收的水库除险加固工程分为2个单位工程,即主体加固工程和管理设施工程,具体内容见表1.1.1。表1.1.1各单位工程施工位置及施工内容一览表单位工程分部工程主要施工内容编号名称编号名称1主体加固工程1-01地基开挖与处理坝前清淤、基础开挖(包括:浆砌石及钢筋砼拆除等)△1-02基础及坝体灌浆基础固结灌浆、大坝帷幕灌浆、大坝加厚新老结合接缝灌浆、坝体充填灌浆△1-03大坝加厚加高底板(宽5m×厚1m)、面板(大坝加厚0.4~1m)、大坝加高(3.3m、▽365.3m);C20钢筋砼1-04大坝其他零星加固项目(交通桥、右坝肩风化处理、溢流面、闸墩等)堰顶交通桥拆建、右坝肩风化体喷锚、溢流面丙乳砂浆处理、上坝路交通隧洞钢筋砼衬砌等1-05底孔进、出口加固新建底孔检修闸门(启闭塔)一座、更换底孔工作阀门等△1-06左岸推力墩加固基础开挖、锚筋、C15砼浇筑,高程为▽340.5m~▽362m1-07库岸滑坡整治土石方开挖、帷幕灌浆、砼和浆砌石挡土墙等1-08输水隧洞进水塔拆除重建定向爆破拆除、新建塔身、工作桥及启闭机工作亭等2管理设施2-01房屋维修房屋基础加固、屋面防水、底板及外墙贴砖、内墙粉墙、更换门窗、不锈钢栏杆及维修等2-02大坝安全监测系统埋设应变计、无应力计、测缝计、水位计,位移标点,雨量计,水位尺,购置观测仪器等2-03防汛道路拆除、新建防汛道路,防护栏,浆砌石挡墙,边沟等2-04输变电线路架设高压线路、安装变压器等郧西县马鞍关水库除险加固工程建设监理工作报告31.2工程建设相关单位项目法人:郧西县马鞍关水库管理处设计单位:湖北金浪勘察设计有限公司监理单位:水利部丹江口水利枢纽管理局建设监理中心质量监督单位:湖北省水利水电工程质量监督中心站施工单位:第一标段湖北水总水利水电建设股份有限公司第二标段湖北浩川水利水电工程有限公司1.3完成分部工程、单元工程质量评定情况表1.3.1主体加固分部、单元工程质量评定情况统计表分部工程名称及编号单元个数施工单位自评监理单位复核合格个数优良自评等级合格个数优良复核等级个数优良率%个数优良率%地基开挖与处理(1-01)2200合格200合格基础与坝体灌浆(1-02)20201155.0合格201155.0合格大坝加厚加高