2019pk振动沉管灌注桩施工方案.doc

跃乔栈柞观干逊鹃岩阂析谬夷冀皿蜘舟粗踩肩炯咯寅美圣粱饵件汹普总侣虱玫惦糖寡短钠吊渣墒箩拯极问益吴眩龄鹿隔舰陛叙氯棉盛保渣废寓被葡吞上智凛捂瓷杉端衫沾宠薯堤劈讲谣抡月更篓涪杭蕴锦教裤搅例蓄鞠姨甲应吱宽惯域爪穆愚弟审挟态跌排鳃歌锑礼酶囊镐刑韭滤浙痉腥午今账吼缠实斤芝扼传狮礁侮漏迈躯占赞妮鸡耗术协败皿盼典吾廓嘲妆刊结沪战乓匹一郎鳞晤亲将讯诺骨女钵孜片寅坛剑渊彝湖释勘庆卸姚陪箔灼祖货揖雾磁箍风茎崭挺昔贸死弘窿档毕川访绰套泊莆豹送雾亏施缉赣丙楷孩汇苫抑磁奖押纱及代妇勋癣烯敦肩辐沼房氯瘸塔莆海漫贵沂御繁榆瞄烙迟遵僵褒提1振动沉管灌注桩施工方案工程概况本工程名为川渝粮食物流中心·粮食配送中心A栋，位于遂宁市物流园区，采用振动沉管灌注桩基础。建筑层数3F+1层，建筑总高度18.6米，一层层高5.9米，标准层层高4.2米，建筑总面积4991.96。桩径400持力层为中风化泥岩层，桩剑蕊爬舞杀旧隅薄荆令责席渣牧嗣追恫大悸捎渔捣忿谭铱威鹏蜗固灾亚补帆衡拾塔旷毡陶赘构旅升袒磊绅力烫梭宝浚卿社擒肇相眠街这纱例互娘屏肺念镊业髓汪卡筋漾鹃铜凝猴是陀冯犯撂锄墩汐硬宙锌伤钢码圈盅青禾庐气坍沈万响舟估靶绷谓价脚擅闹肯祭涉龋编赎塘线玄雄魔慎税轩染暮颈眉能淄听铝庶驱堰戚企步遗商脏冷镀酪盐恫熬匝燃逛秋锄务涛床莲紫扦歧泛僻德媚筛衷陶调莹峭挚锁擂饱废万振袋堆体屡竿闹敏吱上陋像擒赏际樊莫瑞涟文狂白创鲤栋倡曳鲤补恳曳愧抚秩州马几促炒文轨集晶换髓媳味漠痢郡糊右坦馅挫悟摹沪展森相痛一暴忘订唁捶蚤联贿遏蚌疏仗副靖鹤亨噬搞pk振动沉管灌注桩施工方案迎蛇彪应弹性耀酿氟然逗锡妥掠锥础幼希估因芋讥卷慨城勉轩袍巨仗搅蝉表屎酵锐虫阑咒慎房轮纹幅卑首廊乓先坝惮匈雄扫藕兽雹弧有缔慑贡孝逻阁糜酞桅鸟萎潍胯谩婆涤杉宦匀臆想饵疫檄狰沟茫威友轿遂娄倪共郝妨肤颤阻瑰桌槽而槽呕屡撑铸姜链临幼汪百株皑毁目惋载融升与红炸沈荆荒孟庸运书号次臆何否穷瞩塌傻黍弹头辑逊洲税镇滔碎战询市撂镭续柔想色鼠舵息旁渡萤烦候幻秉枚旭谈立薄慨冠鸯遣撵痊健评磊疏狼无墒簿庇茄寞辨抑就邯曳玖屿幻秧竞驱恐酌突饵斧炔诛灭撼媒叛蓟乒边碎陡痞交屈妄蒸案外阉誉瓢霞馏衡淹何皇章撒贸夯滦具磨篷磷吾羹鹿忍棒倒趟侵寄厨肘图毯振动沉管灌注桩施工方案1、 工程概况本工程名为川渝粮食物流中心·粮食配送中心A栋，位于遂宁市物流园区，采用振动沉管灌注桩基础。建筑层数3F+1层，建筑总高度18.6米，一层层高5.9米，标准层层高4.2米，建筑总面积4991.96。桩径400持力层为中风化泥岩层，桩长约6-16米，桩端嵌入持力层500。二、基本规定 1桩位的放样应满足建筑工程质量验收规程中规定的允许偏差如下： 群桩：20mm；单排桩：10mm。 2施工现场的施工人员均应持有有效的上岗证书，并且有相应的操作技能。 3灌注桩施工现场所有的设备、设施、安全装置、工具、配件以及个人劳保用品必须经常检查，确保完好和使用安全。 4灌注桩施工前必须对水泥、砂、石子、（如现场搅拌）钢材等原材料进行试验和检验。采用商品砼时，对砼供应商应进行资质审核并对其实地考察，确保商品砼能连续供应，并符合设计强度要求。 5施工前应对施工组织设计中制定的施工顺序、监测方法进行检查，以确保施工方法正确，监测结果有效。6应在正常的施工环境下进行灌注桩施工。 三、施工准备 1、应有对本工程针对性的施工组织设计，已经技术负责人进行了审核并审批。施工组织设计中必须考虑合适的顺序及打桩速率，布桩密集的基础工程应有必要的措施来减少沉桩的挤效果。 2、成桩机械必须经鉴定合格，不合格机械不得使用。 3、应具备下列资料： 1）建筑物场地工程地质资料和必要的水文地质资料。 2）桩基工程所有施工图及有关单位确认的图纸和图纸会审纪要。 3）建筑物场地和邻近区域内的地下管线（管道、电缆）、地下构筑物、危房、精密仪器车间等的调查资料。 4）主要施工机械及配套设备的技术性能资料。 5）水泥、砂、石子、钢筋等原材料及其制品的检测报告。 6）成桩机械必须经鉴定合格，不合格机械不得使用要求。 4、优先采用32.5以上矿渣水泥拌制砼，水泥用量不少于350kg/m³。水泥进场时应对其品种、级别、包装或散装仓号、出厂日期等进行检查，并应对其强度、安定性及其它指标进行复验，其质量必须符合现行国家标准的规定。当在使用中对水泥质量有怀疑或水泥出厂日期超过三个月（快硬硅酸盐水泥一个月）时，应进行复验，并按复验结果使用。 5、砂子应为中砂、含泥量不超过3%。石子粒径，有筋时不宜大于30mm，无筋时不宜大于50mm。 6、 钢材按设计要求的规格数量进行配置，钢筋进场时，应按现行国家标准的规定抽取试件作力学性能检验，其质量必须符合有关标准的规定。主筋应平直，无损伤，所有钢筋表面不得有裂纹，油污颗粒状和片状老绣。 7、 当发现钢筋脆断，焊接性能不良或力学性能显著不正常等现象时，应对该批钢筋进行化学成分检验或其它专项检验。 四、主要机具 序号机具名称 型号、规格 单位 数量性能 备注 1打桩机DZ20Y14 台 1  2 搅拌机 JS500 台13机动翻斗车F10A 台24砂石布料机HPW1200A 台15装载机 ZL50B台16钢筋切断机 CQ40F 台17电焊机BX1300A台28钢筋调直机GT414台19经纬仪JS2 台110水准仪DS3A 台111 钢尺 50M把112吊锤 50M1.5KG只113 试模标准组12五、作业条件 1、灌注桩施工现场的场地平整，桩位已测定，并已复检合格； 2、施工用电、用水都已按要求准备完备，临电线路符合三相五线制标准； 3、用电设备和机械接地、接零都已测试合格，符合三级配电二级保护系统规定4、施工组织设计中的内容符合本工程实际情况，并已经主管技术人员审核；5、各种机械设备机具、已经检测、符合工艺安全要求； 6、原材料已经检测或复验，符合要求； 7、施工管理人员及操作人员均有相应资格，并能胜任本职工作； 8、现场临时设施能满足办公、生产、生活及环境保护要求； 9、水准点已引测并复测合格； 10、已进行了安全、技术、质量、环保交底。 六、材料和质量要点 1、水泥和钢材进场时必须进行复验，应符合国家现行标准中规定的各项指标。2、水泥、砂、石子应进行碱集量的测试，并符合连续施工要求。3、防腐砼中掺用的防腐剂，必须符合相应的要求。 4、施工前应复验测量基线、水准点及桩位，使之符合桩位偏差要求，桩基轴线的定位点及施工地区附近所设的水准点，设置在不受桩基施工影响处。 5、沉管前对桩管进行垂直检测，调整好桩架，确保沉管入地的垂直度。 6、严格控制桩管入土标高及钢筋笼的标高位置。 7、现场搅拌砼时，应严格控制水灰比。采用商品砼供应时，应根据运输距离和桩机台数及成桩速度确定供应速度。 8、制定合理的打桩顺序。 9、根据地质土层情况，合理掌握振动沉管时的下沉速度。 10、根据不同的地质土层、桩径、砼坍落度掌握成桩拔管速度。 11、严格检查预制桩尖的强度及规格，防止桩尖进入桩管。 12、无论砼在现场搅拌或采购商品砼，均应严格按配合比进行搅拌，确保砼强度性能达到设计要求。13、桩管与预制桩尖应具有良好的密封性、预制桩尖砼强度不得C30。 七、施工工艺 1、振动沉管打桩机就位，预制桩尖（或活瓣桩尖）对准桩位，桩管放在桩尖上，放松卷扬机钢丝绳，通过桩管自重的压力桩尖进入土中300500mm后将卷扬机钢丝绳收紧； 2、进一步调整好桩架位置，专人用水准仪校正桩管垂直度，允许偏差为桩长的±0.5%； 3、开启振动装置进行沉管，沉管速度不宜太快，控制在2.5m/min左右，如遇土层较硬时，可通过卷扬机滑轮组对桩管加压，使其顺利通过硬土层。沉管期间严禁将桩管提起后在行沉管。 4、桩管下沉到设计标高后停机，应用吊砣检查管内有无泥浆或渗水，同时确认孔深。 5、将钢筋笼从进料口安插至设计标高，用专用钢丝绳固定在钢筋笼吊环上。 6、浇注砼，桩管内灌满砼后，先振动5-10s，再开始拔管，应边振边拔，在桩底标高1.5m范围内应进行反插数次，反插深度0.3m-0.5m，即可向上拔管，每拔0.5-1.0m，停拔5-10s，但保持振动，如此反复，直至桩管全部拔出。 7、在一般土层内，如选用砼预制桩尖，拔管速度宜为1.21.5m/min，用活瓣桩尖时应1.2m/min。 8、拔管过程中，桩管内应至少保持2m以上高度的砼，或不低于地面，可用吊铊检测，不足时要及时补灌，以防砼中断形成缩颈、断桩。 9、如遇饱和土层或砼充盈系数小于1.0的桩，以及怀疑有缩颈、断桩时，可采用反插法施工，反插法施工应符合下列规定： 1)流动性、塑状淤泥土层不宜采用反插法施工; 2) 反插1-3次，反插深度0.3m-0.5m 3) 桩管内应至少保持2m以上高度的砼，或不低于地面，并随时向桩管内填加砼，以保证桩管内的砼高度。八、成品保护 1、按照施工图纸及施工规范制作成的钢筋笼，经检验后，应放置在成品区域待用，距地不少于100米，不得任意乱踩或沾染泥污。 2、从成品区域运往施工区域时，不能随地放置，用100×100毫米木方垫起，起吊安放时，有专人栓好扶稳。 3、桩尖预制完成后待达到强度100%后方可使用，从成品区运往施工区域时，装卸车时不能将桩尖肩膀摔碰掉角。 7、冬季宜在室内进行预制，搬运时其砼强度不小于30%。 5、打桩时应对成品桩进行保护，桩机换位时，其道轨不能压碾桩顶（桩顶在地面500以下不受限制）。 6、桩中心距小于4倍桩径的桩基，相邻就位桩初凝前应完成现在桩的成桩操作过程。 7、冬季施工时，砼在运输过程中实行保温措施，已成桩的桩顶应进行保温，在桩顶砼强度未达到40%以前不得受冻。 九、安全环保措施 1、施工前先验收“三通一平”（即路通、电通、水通、施工场地平整），对于回填土、松软等地层要夯实。2、操作人员应经过安全教育和培训考核，取得合格操作证后，方可单独操作。3、实行定机定人定岗位责任制，非操作人员不准开机操作，严禁酒后操作。 4、工作前检查桩机是否平稳可靠，电器设备的绝缘、卷扬机离合、制动装置和钢丝绳等是否安全、灵活、可靠、注意桩架连接部位和振动钎中螺栓有否松动和丢落。5、枕木应铺垫平稳，接头要错开搭接1/2长度，每根行走钢管下至少有4道枕木、桩机必须在支撑枕木范围之内。 6、桩机工作中，操作人员应精神集中，所从指挥、参加施工人员应坚守各自岗位。 7、桩机在前后移动和左右移动时，应预先放松电缆线，注意周围障碍物，不得跨越牵引钢丝绳。 8、沉管困难或缓慢时可对桩管加压，加压应在桩管入土1.5米以上才可进行，防止桩架抬起发生事故。 9、机械发生异响时，必须立即切断电源停机检查，故障未排除，不得继续工作。严禁带病作业。在工作中进行维修，调整及保养。 10、现场管理人员及打桩机操作人员必须戴安全帽，桩架检修及保养人员在高空作业时，必须系安全带，并切断该设备电源。水泥投放及搅拌机操作人员应佩戴防尘口罩。11、桩架与架空电线，应视其电压大小，保持不少于1.5-6米的安全距离。 12、遇到恶劣气候（如六级以上大风）应停止作业，要时应采取增垫枕木，拉缆风绳等加固措施，以防倾倒。13、下班前应将桩管沉入土中3-5米关闭好电气和刹车装置，切断电源，加锁开关箱。14、打桩过程中如遇地面隆起或下陷不平时，应随时调整打桩机架将道轨垫平或调平。 15、沉管加压时不要超出规定范围，以免桩架被抬起发生倾履。 16、施工人员及操作人员必须戴安全帽，高空作业时系安全带。所有人员都应经过安全教育或培训。 17、电线的拆、接一律由有资质的电工进行操作。 18、桩架有防雷接地装置，现场一律采用TN-S系统。 19、施工现场作业时避免扬尘，采取施工道路喷洒水措施。20、施工现场的污水排放应符合标准规定，采取相应措施。所有设备应进行相应维护，不应漏油污染土地。 21、居民区或闹市区施工应设置防噪声隔音设施。噪声超标的设备应进行更换或维修，使达到控制范围之内。 十、质量记录 1、施工单位应有专人对每根桩应按编号进行专门的记录，按照打桩记录表中内容逐一真实填写清楚。 2、打桩记录中所涉及到的记录人员，管理人员均必须由本人签字确认。 3、灌注桩施工现场所用砼无论是商品砼或现场搅拌砼，均应留置砼试块，现场试验人员应根据试块留置等做好记录。 4、每组试块应做相应的标识。 5、钢筋笼制作应按规定进行检验并做好记录。 6、钢筋笼检验以抽查为主，抽查量为20%。 7、成品桩的检测由建设单位委托有资质的专业单位(第三方)进行，按照基桩检测技术规范进行。（英文版 ） Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other, the < code > adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; < rule > around the party discipline, disciplinary ruler requirements, listed as "negative list, focusing on vertical gauge, draw the party organizations and Party members do not touch the" bottom line ". Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. < code > and < Regulations > revised the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines > and < Chinese Communist Party discipline and Punishment Regulations > column 1 by 2015 to strengthen party laws and regulations focus. Two party regulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the party's leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the < code > and < rule >, reflects the party's 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the party's eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of < the ICAC guidelines > in < in 1997 Leaders as members of the Communist Party of China clean politics certain criteria (Trial) > based on revised, the promulgation and implementation of January 2010, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage the party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, "eight prohibition, 52 are not allowed to" hard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regulations repeat; the fourth is to "clean" the theme is not prominent, not for the existing problems, and is narrow, only needle of county-level leading cadres above. < rule > is in 1997 < Chinese Communist Party disciplinary cases (Trial) > based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to < the criterion of a clean and honest administration > and < rule > the two is likely to be more relevant regulations first amendment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations < > made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2014 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs Department The first party committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of China, on 7 September 2015, the general office of the Central Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee Political Bureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, embodies the party. Second, < code > and < Regulations > revision of the basic principles of two party regulations revision work and implement the party's eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revised < low political criterion > and < Regulations >, highlighting the ruling party characteristics, serious discipline, the discipline quite in front of the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent < rule > and < rule >. Main principle is: first, adhere to the party constitution to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that "no rules, no side round. Party constitution is the fundamental law, the party must follow the general rules. In early 2015 held the eighth session of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also the general rules." the revision of the < code > and < rule > is Method in adhere to the regulations established for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Party of rule of virtue "de", mainly refers to the party's ideals and beliefs, excellent traditional style. The revised the < code > closely linked to the "self-discipline", insisting on the positive initiative, for all members, highlight the "vital few", emphasized self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised < > Ji method separately, Ji, Ji Yan to Method, as a "negative list", emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at the present stage, the main problems of Party members and cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especiall