人工挖孔桩淤泥夹层处理专项施工方案.doc

We will continue to improve the companys internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying with third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication zero resistance. To constantly perfect ERP, and BFS+, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run maintenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS+, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure zero. To strengthening Humanities care, continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career against; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of zero risk. To strengthened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owned assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. To further standardize trading, and strive to achieve according to law, standardize and fair. Innovation of performance management, to ensure that potential employees zero fly. To strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further quantify and refine employee standards . Work, full play party, and branch, and members in five type Enterprise construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening four good leadership construction, full play levels cadres in enterprise development in the人工挖孔桩淤泥夹层处理专项施工方案一、工程概况: （一） 工程特点:东方熙龙山院A区121栋位于南京市浦口区珠江镇沿山大道与海院路叉路口东，场地交通便利，所有施工机械设备均可直接进入施工区。施工区场地开阔，施工区域地表无建筑物。（二） 设计概况:本工程桩基为人工挖孔桩工程，桩径900/1000mm，护壁和桩身砼强度等级为C30，护壁厚度135mm，纵向钢筋1016/1316通长，螺旋箍为8100/250，加劲箍为142000。在21#、1#、2#楼人工挖孔桩施工至原始地面向下35米时，陆续发现淤泥夹层，每个桩发现淤泥夹层时就立即停止施工，最终确定淤泥层呈东西走向，位于21#、1#、2#楼AC轴/纵轴间，淤泥层厚度约为12.5米。（三）本工程特点、难点及应对措施1、 本工程工作量不大，工期紧应对措施：根据施工现场实际情况，组织专业施工队21人。施工队计划于2011年8月21日进场，组织7个专业淤泥处理组（21人）同时开挖，可同时开挖约28个桩井，灌注使用商品砼，同时准备200Kw柴油发电机组一台备用。每天每个桩孔可施工12模，每模300高。2、 周转场地和进场道路为新填土区应对措施：进场道路和砼搅拌站及钢筋材料库和制作车间、路面、地面必须硬化，该工作一定要抓紧进行。3、 本工程地质条件极为复杂，施工难度主要表现在如下几方面：a、场地地下水位较高，单井涌水量可能较大。b、淤泥层在原土地平向下35米，部分淤泥比较稀，很难立模，容易塌方。4、施工期间正处于高温季节，施工人员密度大，卫生保健工作难度大应对措施：工地配置专职卫生清扫员，搞好环境卫生，房间开窗通风，定期消毒，象防非典一样防流感，工地上配备充足的常用急救物品和药物，并做好防暑降温工作。5、 本工程施工处于高温季节，成井施工人员每天从里到外衣服都是湿的，每天都得洗澡换衣，而衣服在自然条件下很难干，此事看来是小事，但直接影响到工人健康和施工进度。应对措施：工地配备热水锅，配备脱水和烘干机，安排专人负责为民工烘干衣服，保持战斗力。二、施工准备(一)材质要求1、标准红砖、P.O42.5水泥、黄砂；2、钢筋：钢筋的级别、直径必须符合设计要求，有出厂证明书及复试报告，表面无老锈和油污。3、垫块：用成品塑料卡。4、火烧丝：规格1820号铁丝烧成。(二)工器具主要工器具：三木搭、卷扬机组或电动葫芦、手推车或翻斗车、镐、锹、手铲、钎、线坠、定滑轮组、导向滑轮组、混凝土搅拌机、吊桶、溜槽、导管、振捣棒、插钎、粗麻绳、钢丝绳、安全活动盖板、防水照明灯(低压36V、l00W)，电焊机、通风及供氧设备、扬程水泵、木辘轳、活动爬梯、安全带等。模板：组合式钢模、弧形工具式钢模四块(或八块)拼装。卡具、挂钩和零配件。木板、木方，8号或12号槽钢等。三、工艺流程确定淤泥层的位置向下开挖300深、向外扩挖200、长600800mm在最外侧砌砖模，并用16竖向加固，防止刚砌的砖墙移位继续重复前两道工序，分34次完成桩一周长得砖墙加固放附加钢筋支护壁模板浇筑第一节护壁砼开挖吊运第二节桩孔土方(修边)先拆第一节模板、在最外侧砌砖模、支第二节护壁模板(放附加钢筋)浇筑第二节护壁砼逐层往下循环作业开挖透过淤泥层。四、操作工艺。 同人工挖孔桩操作工艺。五、安全注意事项1、每日开工前应检测井下有无危害气体和不安全因素，应有专门送风设备，风量不应小于25L/s，向桩孔内作业面送入新鲜空气。当桩孔内土层中含有害气体及有机物质较多时除加强通风外，还应对有害气体加强监测。2、桩孔口应严格管理。桩孔口应设置高于地面200mm的护板，防止地面石子或其他杂物等被蹋人桩孔中。地面孔口四周必须有护栏，高度不低于800mm。无关人员不得靠近桩孔口，桩孔口机械操作人员不准离开岗位。口袋内不得放置物品(如钥匙、钢笔、怀表、打火机、小型工具、玩物等)，以防坠入桩孔中。3、桩孔下作业人员必须戴好安全帽、穿好绝缘胶鞋、桩孔口与下部作业人员应有可靠的联络设施。如桩孔口管理混乱，桩孔内应立即停止作业回到地面上。地面孔口作业人员需待井下作业人员上来后方可离岗。5、桩孔洞口上应设置悬挂软梯，并随桩孔深度放长，以备意外情况时有关人员能 顺利上下。正常情况下，操作人员上下应乘坐吊篮或专用吊桶。开机人员应专机专人，并持证上岗，集中思想认真注意桩孔内一切动态，电器开关不得离手。吊钩应有弹簧式脱钩装置，防止翻桶、翻篮、脱钩等恶性事故发生，严禁站在装渣桶边缘口上下。垂直运输机具和装置，必须配有自动卡紧保险装置。6、装渣桶、吊篮、吊桶上下用电动葫芦提放，上下应对准桩孔中心。7、在任何情况下严禁提升设备超载运行，上、下班前对提升架及轨道应进行检查，工作时发现异常情况应立即停止工作，找出原因，认真检修，不准带病运转。安全措施保证体系图安全员：陈宏佳组长：施夕华安全员：顾军建项目工程师：丁红明施工员：朱 林电工班:徐 玉 标后勤组:丁 晓 明质检员:陶 高 祥术控制小组施工二队：王 兵施工一队:常乃武（十六）、项目经理部组织机构项目经理部组织机构管理体系图 （现场管理和施工主要人员名单）项目副经理：姚铎项目经理：施夕华项目工程师：丁红明施工员:朱 林资料员:晏 慧 清质检员:陶 高 祥安全员:顾 军 建安全员:陈 宏 佳测量员:肖 培 龙电工班长:徐玉标项目经理、副经理负责与业主联系有关合同、外围事宜。施工员负责与现场负责人、监理联系有关施工技术问题。安全员做好施施工安全防范工作。仿佛顷刻间，亚运就来到了我们身边。一个普通的人，很难想象它背后隐藏着多少人的心血，藏匿着多少人的汗水，背负着多少人的梦想，寄托了多少人的祝愿，在这个激动人心的时刻，在这个万众瞩目的地方of backbone backbone role; to full strengthening members youth work, full play youth employees in company development in the of force role; to improve independent Commission against corruption work level, strengthening on enterprise business key link of effectiveness monitored. , And maintain stability. To further strengthen publicity and education, improve the overall legal system. We must strengthen safety management, establish and improve the education, supervision, and evaluation as one of the traffic safety management mechanism. To conscientiously sum up the Olympic security controls, promoting integrated management to a higher level, higher standards, a higher level of development. Employees, today is lunar calendar on December 24, the ox Bell is