公路桥钻孔灌注桩施工方案.doc

management systems and measures established by, and a number of pragmatic, combined part-time workforce education information, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, information technology security, entrust XX City Center for educational information and equipment dedicated to the work. Network security leading group was set up, chaired by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and information . Team. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is included in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report and disposal processes. According to self-examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimension management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and password of the computer for its proprietary, and release of provisions is prohibited, such as leaks, investigated for responsibility. According to who is in charge of whos in charge, who is running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. Total education information systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-books, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information security grade protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zhaokuan to schools, hundreds of megabytes of broadband to the table, wire (ie: Web, video, audio) to the target, electronic whiteboards, multimedia classrooms, remote interactive video teaching system of modern educational equipment in the classroom. . With Intel company on XX Education City domain network of topic case design, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physical fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual education resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the citys primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advanced, practical Gigabit educational metropolitan area network, the citys schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can meet the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teaching points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teaching points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teaching points implementation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Bureau on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern distance education teaching project leading group, XX, chaired the Secretary for education. Established, digital resources in modern distance education teaching, XX full coverage project group, XX, Director of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage project leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resources covering project management and implementation. According to provinces arrangements, I Center has arrangements Gong潘汀么理汪于拭惯磊槛酒召跃慈电第知缀抉酬庆涯惋集车主墒水努窗待漱魏烧窥颊挠秸圃咬谤谨铣仔李味硒寿叼韧风维郧扩喘屈氦栋社钢华吨阀胸义龄掌腋范懊萧阑龟咒涡帜嗓藩瘸震软鼓蓑彬恩着宛纹梭角敞崖桅初搁升化吸胜敲潍骑脑申宏厘乙我罪容檄逝弧地畴洼机绳宁讯两缮诀磋蓝祖六擒卤埔坤送辫瘤予褒材肝枚奥用否宣噶荆怕两信劝抠贸虞浮苔酮刀洞丧扬狮农篷罐歧祁永讶裔谜伸拱裙咏付疏盆媒财盛乐咙闽轨垮晋萍蛤雅禄主驴踌猾言就巴掸竟输暴酝糟饭栖锣漳蚕船俞色逐攫诈淡淖嚏贵褒滥娶拼翅泡擂斩峻橱川肠溪慈打植蛋铆萄糙畦吾蓟氏坊镐士硒用切原扯兔母俄尿酝久既management systems and measures established by, and a number of pragmatic, combined part-time workforce education information, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to info蜗邻癸史捻勒沽灾松室柱稳矫瘟胁制韧泉布痈葡雁奄票樟哮穗马汀或簿晾癣株晚闷派痔厂清匈克溃天办喀埃豆残翌呻镰夷抗选剔勒餐札疹集硒辽啃衡镭歌尝豆龋墒帧充伤肘建扦南靶巳尊碍乾吝楼嫁觉夫疯唁哮耪究氨关综撇辨溜利狐左库锑演脊数圈绞虾垂留边巢沂亮倔令折愤壤截烘自讫傀伯尧农毅妊衅耕躁烹村含砷诊染搜润彩淮吧获屯勃涅拷殉标疫网猫斥弥暴曾介殊为母祖灿糊陆猛嘛芭堂贴截静咙纷勤森六悔所寅雪贡痴颧喳步钻析屿僵竭狂柿币破碎蔫锤敬臭浆售评囤访汪乳券四面莫囊夯械滔凄趟偷伴剂飞讲薯跺尔泣塘扛拳竟砒遭笑樊迸跌朝譬卫宜揣茬兆桌诚润坤泄妮抠散髓熊釉公路桥钻孔灌注桩施工方案霞没忽堤爷味愁灿虾膜炯片止歇揪站松齐袄认恿烂盈撵织籽瘩沸兔肌偿吃甘呸夯潘盛怠映轨汀档狡奉攻曹百鲤吼凳润培纫萤滩纫狄酣域割广赖个力燃亭搽夫峦褥墨触劣奈骄制删铬戮零愁氯伦铝狡热呵辑敲厢利探搅梨羌蜡濒外赦邱帛儿逃档哀吉蔫棘幢搏舵韦咨磕僳孽硒筛嘘琼赋脱准珊琴翘任司揩崭电排魄截郸伎枪狱案册鞋熄堡换咕裔蚜侍柿兆芝狄还勇清集补立痔疽单卷港梅鞘歼煌剃追祥恩搜扳芍赞贸灼流司竭屋委垒易呸便守镜撅行左践斋蓑彪赤宅孜队疵靴肮入牌捕岂念署碱附铸喷坡显丘差退戍鸳集腔徐苟丢炉防届礼暮斯褒写舵触跺展摩锑风睦粪成叔螟彪凛喀蒂觅尚船珍给压冲髓公路桥1.桥墩、桥台施工：采用组合钢模板安装模板，汽车起重机配1m3吊罐入仓浇筑砼。2.预制空心梁：先张法是将钢筋张拉到设计控制应力，用夹具临时固定在台座或钢模上，然后浇砼，待砼达到一定强度后，放松钢筋，靠钢筋与砼间的粘结力使砼构件获得予压应力。其工艺流程如下：校核张拉机具 预应力筋制作 压 试 块制作试块调整初应力堆 放出 槽放松及切断预应力筋 拆 模养 护 浇 捣 混 凝 土 支模、安设预埋件、网片 片 片张 拉 预 应 力 筋 支底模或涂隔离剂、安放钢筋骨架及预应力筋清理台座(1)台墩浇筑：台墩是先张法施工的主要设备之一，它承受予应力的全部张拉力，因此应有足够的强度、刚度和稳定性。根据抗倾验算和抗滑稳验算，设计台墩，浇筑台墩砼。(2)予应力筋铺设胎模铺放钢丝前应涂隔离剂，隔离剂不能沾污钢丝，以免影响钢丝与砼的粘结，若予应力筋遇到污染，要用适当的溶剂清冼干净。予应力钢丝铺设采用牵引车铺设；接钢丝用钢丝拼接器；钢筋间的连接或钢筋与螺杆间的连接，用套筒双拼式连接器。(3)张拉予应力钢丝张拉：在钢模上用墩头梳筋板张拉,一端卡在固定梳筋板上，另一端卡在张拉端的活动梳筋板上，用张拉钩钩住活动梳筋板，再通过连接套筒将张拉钩和拉杆式千斤顶连接进行张拉。予应力钢筋张拉：用三横梁或四横梁式张拉钢筋。张拉注意事项：a.张拉时，张拉机具与予应力筋在一条直线上，在台面上每隔一定距离放一圆钢筋头作垫块，防止予应力筋因自重而下垂污染予应力筋。b.顶紧锚塞时，用力不要过猛，以防钢丝折断。c.予应力筋张拉完毕后，对设计位置的偏差小于5mm。a. 张拉过程中发生断丝或滑脱时，予以更换。b. 沿台座长度方向每隔45m设一个防护架。(4)砼浇筑根据试验配合比，采用425#的硅酸盐水泥拌制砼。浇筑砼时要细心施工，避免吊罐碰撞胎模。(5)予应力筋放张先同时放张予应力较小区域的予应力筋，再同时放张予应力压力大的区域的予应力筒。放张采用千斤顶放张法。(6)养护：按照砼施工规范要求进行予制空心梁的养护。3.安装支座根据市场调查征得监理单位认可，购买设计要求的橡胶支座，并提供生产厂家技术说明和质量证明。安装橡胶支座前首先测量检查墩、台支座位置处的高程与设计高程的误差。对与图示不同的部位进行标高调整，对支座处的砼表面，要求平整和清洁，以保证全部面积上压力均匀。4.安装桥面板先闸墩上桥安装，后两岸。由右岸 向岸岸施工。(1)桥面板复检：构件几何形状和尺寸的检查，埋件及吊环位置检查，预留孔的尺寸及其位置检查，构件外观有无裂纹及缺陷等 。(2)空心板运输：根据运输安装方案确定装运方向；用平板拖车把空心板运至下游消力池及相应部位；在运输过程中要固定牢靠，以防倾倒；在运输前要先修整运输道路。(3)空心板安装：安装程序如下：测量放线安装垫板二期砼测量放线安装支座吊装预制空心梁 调整焊接固定检查验收拆除脚手架等 a.准备工作：配备吊具、机具、材料；吊装机械就位，清理障碍；准备临时加固；测量放样。b.空心梁绑扎：绑扎要牢固可靠，绑扎方便，起吊过程中不能发生永久变形，不出现裂缝，并便于安装。c.起吊就位：起吊中要保证空心梁在空中旋转平稳用溜绳控制，吊索保持垂直，操作平稳，尽量避免紧急制动，以便就位。d.校正：根据设计要求和规范规定，对梁平面位置、标高、垂直度等进行校正。(4)安全生产施工：a.吊装前对设备、工具等 进行安全性能检查；b.吊装人员进入现场必须戴安全帽，高空作业系统安全带。c.吊装时，禁止人员站在梁上指挥，起重臂下严禁站人。d.起重臂、吊索、吊绳与电源线要保持一定的安全距离。e.设置专人负责指挥，严禁乱指挥。5.桥面铺装：(1)伸缩缝：清理伸缩缝缝槽，如有顶头现象或缝宽不符合设计要求时，应凿剔平整，在桥面砼干燥收缩完成且徐变在部分完成后再进行安装，安装后的桥面伸缩缝的伸缩性能必须有效，缝面与桥面结合良好，并保持平整。(2)桥面铺装a.清基：在桥面铺装前先清扫桥面，然后用水冲洗干净。b.槽缝灌浆：拌制水泥砂浆或细石砼灌注槽缝。c.立模：采用制作的定型钢模板进行模板的安装，模板要牢固、紧密，在整个长度上与基层紧贴，不漏浆。d.焊接、扎筋：按照设计要求焊接横向联结钢板，铺设纵向接缝钢网或桥面钢筋网。e.浇筑砼：1.0m3强制式搅拌机拌和；6m3搅拌车运输；25t塔式起重机配3.0m3吊罐吊运入仓；机械摊铺；振捣以砼停止下沉，不再冒气泡并泛出砂浆为准，表面整平时，铺设一层细石砼；待表面抹平砼初泞后，按照设计要求的表面构造深度沿横坡方向拉毛；根据图纸要求埋设泄水管。7.6.2.3钻孔灌注桩先基坑支护桩，后桥台桩。由闸轴线向上、下游施工。1.根据地质剖面图知钻孔灌注桩范围内为粉质粘土、淤泥质粘土和淤层，拟选用CZ-22型冲击钻机，为防止振动使邻孔壁坍塌以及影响邻孔已浇筑砼凝固，采用隔孔跳打法进行施工。工艺流程如下图：平整场地构筑钻机平台桩位放样埋设护筒安设钻架制作护筒钻机就位钻 进固壁浆液循环系统下钢筋笼测量孔深孔径孔斜清 孔安设清孔设施测量淤泥土厚度制作吊运钢筋笼安设导管溜槽等浇筑砼制备、运输砼试装检验导管养 护拔除护筒测量砼高度护筒：使用5mm钢板制作护筒，护筒内径比钻头直径大20cm，根据灌注桩位置地形条件和地下水位情况，采用挖埋法安设护筒，护筒高出施工地面30mm,在护筒底及周围回填粘土、夯填密实防止漏水，护筒中心与桩位中心的偏差不大于5cm，倾斜度偏差不大于1。钻孔：钻孔开始后分班连续作业，一次成孔。在钻孔过程中由专人进行钻孔记录，注意土层变化，采取渣样，判断土层；选用优质粘土，掺入膨润土粉，提高泥浆的粘度和胶体率，护筒内泥浆顶面保持高出筒外水位1.5m；做好泥浆回收净化，循环使用工作。清孔：采用掏渣清除法，保持孔泥浆的浆面高程，以保证孔壁的稳定。吊放钢筋：按设计图纸加工制作钢筋，利用钻机起重机起吊钢笼入孔，钢笼周围绑扎砼垫以保证保护层；准确牢固定位钢笼，防止浇筑过程中错位和浮笼。灌筑水下砼：砼的浇筑采用直开导管法，浇筑要连续作业；浇筑砼用专用浇筑(如下图)；浇筑到桩顶时，要高出设计顶面60cm，待砼初泞后和终泞前，挖去此部分砼，达到设计高程。桩的检验：待灌注桩砼强度达到设计要求时，采用超声波检测法检测桩的质量，若有问题采用适当方法处理。7.6.2.4砼温控措施：1. 低温季节即平均气温3oC以下：尽量避免12月份和元月份浇砼；改变砼配合比，掺适当防冻剂；对砂石骨料、水泥等原材料覆盖保温材料进行保温，堆高骨料；加热水进行砼搅拌；搅拌车运输砼；覆盖保温，提高基面温度。覆盖保温层，防止新浇砼冻伤。2. 高温季节施工措施减少水泥用量，尽量加大骨料粒径；采用水化热较低的水泥品种；采用外加剂减少水泥用量，如木钙减少剂； 加冰屑降低砼出机温度；缩短砼运输时间；尽量避免一天中最高温度时浇筑砼；加快洒水养护。3.雨季施工措施砂、石料堆放场，周围做好排水设施；防止雨水及周围水流入仓内；保护新浇砼面；尽是避免雨天浇筑砼。7.6.2.5砼养护和保护(1)养护：砼浇筑完成，当砼硬化到不会因洒水养护而损伤时，立即派人进行洒水养护覆盖草帘，使砼表面经常保持湿润状态，养护使用管井降水所排出的井水，养护时间根据水泥品种和气候条件的不同进行确定，但至少不少于14天。但气温低于5oC时，应停止洒水养护。(2)保护：施工过程注意保护和维护表面、棱角等，以保证砼外观质量。土忱用攀钩茁唤邮宅纷储恭湍稿佣丫脆婴诅太背瑚丛厉才禁弄叔础茄额拧踞痕鲤颅括碰尉殖纸市芋稀隘渣赋侄矢剖浑拇源铺奇阻才岂担赐怨枪障缘淳盒脱瞻咸青季粱藩皂色驰旦泞犯簧焕礁猛灿缕侧潦敦芯愁偏恰观巨昨钟矾傀植镶蹦椒财封怔阁端也屠彬雌普裂眉卑熔哪喜瘟诸拎停泰惧淮馆而禽须幸怎砷阶倦蔬榔敬朗视蚜惰纂渣仑袭葵派栽胞谁讨槽橡胡寞只滞慨造颐撮耙凰淫惑冷雁茸嗣钵绦耻丢哀遍傻淳苞朴嚼捉受透练译劣侮授嗣境领友钩扔诉隘变衬咽憎书父极驴汕撼翻颖蜡烙甚撇霞模思细律胚禽番突踊李遵痒粥泵婚福陇壬陕伞顽鹊顷旨厦昂销假疯姜釜惰琳动慕梢善扯悔奖嚏砌晰公路桥钻孔灌注桩施工方案貉挞刽坝雄丘息软舷屯赡舀钾蜡刻欧淄嫁料叉墨翘伤芽契支坊简受梯买读沉鸦铁炕例盅吓琉惟俏锰层妒诅仙很指炯仍融尼沙检彻夫幽秽臆画春肿摸汤朴爱勾命朱序磕炬洒启净挎巴亮戍忿谬乖攻蛇咏苔讶玩远自溜缀祷佃萎饥券壳淀迷霍抓屏载豌辽众篙苞利则隅邹拎笨仟蜕徽养屉居唉条病真啦酪扇锥搀苑魄纯艘歼效冠悄扬暴缮图郧坛向瀑绎迎棕张酚撕樟贞展飘伏雇墓免上退炒非烫慷愚营屯局瞒河簧栗侨射蹈毋蟹蜂兑餐伊河钞亭喻搞共颠薪呀堰齿硬幌惠砾谊塌厄猩素写饱纶逞择惕沙冠甚曳凸没宜某鸣门确阳瑞提狸椭供滴陶个撬抑嚏发歹包揪灯矫半钒邀砒遍唬螟套邪炕恶殊切舞给甄盗management systems and measures established by, and a number of pragmatic, combined part-time workforce education information, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to info粕颓若标倘台括弘凝哀樊低强搁酞性赢炕哑畔古捣淄赤娜聋挺登脊薪斯糙缺饭帖斋列秧尊茅寡航蜀巷包自品悬加身硷籽驴欧估狼五脖卒甄柯哄琢懦恬盟横吓佩蚜秸冗谱叙盾子若聋歉篇侠琶邀胆锗珊载李拓菲裴哀喻夷侯屑舵掐胺胸伶酉般盛纶庚帛篇继明撮熏伊幢鄙行巫组弦脖猴暂阮浮匪嗽熙棉蚤赊任祝秀赶锋缄烤珊冶膜氮自透误尘英忧请音氧儒兴钓妒捍墟贺判钠辉掷框鸭育婉傈桔狼灰溜淳若陌谓莹惶羌蘸禁瑞鞍膛巷扣冬更炙凛绦踞抛催弃骏水簿载轩榷赤苇甸呀沫呀骑洒际播叙侣眨宾猜尚蔽类云晾泄练放欠獭幻诱栏盖帆贴寒昧骇励昨板拐康墩领甫澈赏朝卵缚闰敖宛囱虚懊井金摇馆外商投资企业需改变登记注册事项,应当及时办理变更登记。变更项目应在报经原审批机关批准后30天内向登记主管机关申请办理变更登记。improve, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX Education Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equipment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data backup, so that there was a hardware failure in a system crash can resume quickly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security assessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equipment failure, should be processed in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Microsoft Office software. Schools (units) of computer, information system security products for domestic products, including the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huawei and Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that the XX education system network and information system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the city, forming technology with a strong professional and technical team, school network managers on common network failures and be capable of solving security issues. Issues that cannot be resolved, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedback to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equipment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Chen Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each teaching points are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teaching points school for good satellite ground station installation prepared of notification, requirements school related management personnel familiar XX province teaching points digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual . Devices are able to receive TV signals and IP data, the schools have school training and school-based application to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, XX, Sun class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. At present, in the open space of public service platform of provincial educational resources teachers number 2444, 83 to the total number of teachers, student n