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1、cards on the table in accordance with the construction plan operations; Digging holes, hoisting, Dado, residue used in transportation of all equipment, facilities, safety equipment, gas masks, accessories, materials and personal protective equipment must be checked before use, ensure the safety of u
2、se; Every day must be in service for toxic gas detection and record, consistent with requirements to lower production; Excavation pile construction of excavation process must have special care; Intervals the excavation hole pile on the required distance to dig, dig deep each 500-1000mm wall once; Se
3、ction one wall higher than hole 250mm, required opening protection facilities; Lighting hole job safety miners lamp or the safety voltage of 12 volts; Lower personnel must wear helmets, seat belts, by the rigid ladder, into the hole after work or job, you must set 1.2m high fence around the hole and
4、 gaikongkou; Digging when pumping, operating personnel must be on the ground before they can be carried out after the pump power supply must be disconnected; 10, acceptance may be homework, not qualified for acceptance or acceptance not made the next processes work. Site specific security disclosure
5、 disclosure signatures; 11, targeted the construction site safety disclosure; 12, the other. Disclosure signatures to accept cards deliver the signature time Japan form in duplicate, teams from the deposit of an instrument, and filed a report. Earthwork construction technology to give the low-down (
6、reference tables) 4-2-2 construction organization name project name the construction site construction requirements of security technical cards on the table in accordance with the construction plan operations; Manual excavation should be from the top down, layer-by-layer excavation dig gods Earth is
7、 strictly prohibited, there should be adequate lighting at night; Deep Foundation pit when soil wall changes at any time, if there are any large cracks had to stop construction, reporting to the project manager for processing; In the pit or deep in work, must wear a helmet, no dirt and other objects
8、 above fall head injury, in the event of groundwater seepage, water well should be excluded; At the side, if there are any unidentifiable goods or prior did not foresee the coming of cables, pipes and so on, should stop operations, reporting to the superior, no knocking or play with; Artificial lift
9、 dirt, you should review the tools, ropes, hook is solid, lifting vertical and not someone, wheel, should be the formation of walkways, to remove barriers; Underwater operations to strictly check the electrical zero connection and leakage protection switch, cable should be in good condition and wear
10、 PPE; Slope, to be carried out in accordance with the requirements, and cannot concentrate too much, such as when the soil is poor, shall assign a person in custody; Acceptance can be carried out operations, acceptance or unqualified acceptance not madeovernight, only in socialist society is fully d
11、eveloped and highly developed the basis to realize and need to experience a long process of historical development. This requires a communist whether when what circumstances, regardless of the difficulties encountered and risk, heart to have ideal beacon, firm communist victory of faith, not because
12、 the remote ideal felt nothing ethereal and lose confidence., to the highest ideals of co-occurrence stage goal together, vowed to building a well-off society and realize the great rejuvenation of the Chinese nation and the Chinese dream, adhering to and developing the Chinese characteristic sociali
13、sm and solid work of the party in the primary stage of socialism basic line is what? Master constitution stipulates: the basic line of the Communist Party of China in the primary stage of socialism is: leadership and unite the people of all ethnic groups, taking economic construction as the center,
14、adhere to the four cardinal principles, adhere to the policy of reform and opening to the outside world, self-reliance and pioneering effort to turn our country build a strong, prosperous, democratic, civilized and harmonious modern socialist country struggle. the base The contradiction between stil
15、l to develop this route can be simply summarized as a center, two basic points. It is our party according to our countrys basic national conditions, reflects the party and the people of all ethnic groups of fundamental interests. Adhere to the basic line for a hundred years does not shake, is the Ch
16、inese characteristic socialism victory along the most reliable guarantee. Adhere to the economic construction as the center, is the country, is our country socialist primary stage of the main contradictions and basic tasks. At the present stage, our country societys principal contradiction is the pe
17、oples growing material and cultural needs and the backward social production. In order to solve the main contradiction, the completion of the basic tasks. It must persist in taking economic construction as the center, various other subordinated to and serve the center, which is the key to solving al
18、l problems in Contemporary Chinese. To firmly establish the innovation, coordination, green, open, sharing of new development concept, seize the opportunity, accelerate the development, implementation of innovation driven development strategy, talent strategy of giving priority to the development, g
19、ive full play to the innovation as the role of leading the development of the first power, deepen the reform, advancing in a pioneering spirit, and promote Chinas development step to a new level. Adhere to the socialist road, uphold the peoples democratic dictatorship, adhere to the partys leadershi
20、p, adhere to the four basic principles of Marxism Leninism and Mao Zedong thought, is our foundation of our country . in the whole process of the socialist modernization construction, must adhere to the four cardinal principles. Out of the four cardinal principles, our cause no foundation,Manipulato
21、r is now used as a industrial robots in use, the control objectives often appear often in industrial automation. Industrial automation technology has gradually matured, as mature a technology line has been rapid development in industrial automation as a separate subject. Manipulator application bega
22、n to filter into welding, logistics, mechanical processing, and other industries. Especially at high or very low temperatures, full of poisonous gases, high radiation case, robot in similar circumstances showed great use also brings great convenience to the staff. Precisely because of this robot to
23、get peoples attention began to be a high degree of development. Labor rates, working conditions, labor intensive aspects of promoting development. Both at home and abroad to develop the PLC (programmable logic controller) is in various special circumstances and under special conditions set for mecha
24、nical devices. Now turned on the development of the microelectronics automatic control technology and the rapid development of the trains, the success of PLC hardware software and simulation control win big and successful development, now continues to develop as a factory automation standards. Becau
25、se robots are good development of the technology makes a good optimization of productive capital, and robot shows this unique advantages, such as: has good compatibility, wide availability, hardware is complete, and programming that can be mastered in a short time, so in the context of industrial PL
26、C applications became ubiquitous. Manipulator in many developed country agriculture and industry has been applied, such as the use of mechanical harvesting large areas of farmland, repeated operations on the high-speed line that uses a robotic arm, and so on. Today, the high level of automation comb
27、ined with restrictions on the manipulator development level is slightly lower than the international. The design is mainly arm welding machine by PLC Automation control. This of design let designers on in school by learn of has a must of consolidation, understand has some usually didnt opportunities
28、 awareness in world range within some leading level of knowledge has has must awareness, hope designers can in yihou of design in the can success of using in this design in the proceeds of experience 1.2 manipulator in both at home and abroad of research profile automation mechanical arm research be
29、gan Yu 20th century medium-term, after years with with computer and automation technology of development, Makes mechanical arm on the Grand stage of industrial automation and shine, gradually became an industrial evaluation standards, and its importance can be seen. Now original robotic arm spent mo
30、st of mass production and use on the production line, which is programmed robotic arm. As the first generation of manipulator position control systems main features, although not back several generations that can detect the external environment, but can still successfully complete like welding, pain
31、ting, delivery as well as for materials simple movements. Second generation mechanical arms are equipped with sensors and manipulators have the environment there is a certain amount of sense, when the mechanical arm is to use the program as a basis. Difference is that the robot begand主梁合拢段施工方案1、工程概况
32、主梁合拢段宽2m，每段混凝土用量为34.4m3，混凝土重约86t。全桥共设合拢段2道。2、合拢前的准备主梁挂篮施工完成后，将挂篮后撤一个梁段锚固在主梁上，清除桥面不必要的荷载后，进行合拢段施工。合拢段施工是主梁施工的一个重要环节，施工前，首先对挂篮悬浇端的高程及轴线偏位情况进行测量，并对测量结果进行分析，如果超出原设计规定的误差要求，应找出问题存在的原因，并根据要求进行调整。主梁合拢段采用吊篮现浇施工。3、施工人员、机具 合拢段施工时的施工机具主要有手动千斤顶、水泵、振捣棒、布料杆等。施工人员约70人。 本次浇筑投入混凝土输送泵3部，1台备用，用两台泵分别从两侧输送混凝土；60及50型拌和站各
33、一座，罐车3辆，40装载机1辆，16T吊机1台，振动棒16条（50mm振动棒10条，30mm振动棒6条），水泵6台。刮杆2把，泥板10个。4、施工人员组织4.1、5、 施工顺序CB25及SB11段浇筑CB25段挂篮后退至CB24段、SB11段挂篮后退至SB10段安装吊篮主梁压重拆除临时墩焊接劲性骨架拆除边塔临时约束绑扎钢筋、浇筑混凝土张拉合拢束、拆除临时束拆除吊篮、去压重拆除中塔挂篮、8#边塔挂篮调索。6、挂篮转移及桥面清理中塔CB25、边塔SB11段浇筑完成后，挂篮下落，向后移动一个节段后，锚固在主梁上。挂篮转移后压重前将桥面非必需的物品及杂物清理干净。7、主梁压重主梁压重包括两部分：为主梁
34、储存负弯矩的压重1600t和与合拢段混凝土重量替换的压重286.6t。7.1、储存负弯矩的压重：在N23N26和J09J12斜拉索对应的横隔梁上分四次施加100t的压重，每道横隔梁压100t，共分四次施工加。在J12和N26对应的横隔梁配重不包括本梁段分担的施工吊篮重量，全桥压重共计1600t，压重用混凝土块、砂袋及水袋，每个混凝土块重1.25t，每袋砂重约65kg，混凝土块及砂袋称量后，做好标记，压重摆放在两侧边箱位置，详见合拢段压重布置图。施工时先按设计重量放置边塔主梁压重，然后从后向前依次放置中塔主梁压重，根据主梁高程变化调整所加的重量，直到主梁两端高差符合设计要求为止。7.2、混凝土替
35、换压重：在J12和N26横隔梁附近分别设置水箱，每处水箱容积不小于43m3，混凝土浇筑前装满水，浇筑时与混凝土同步去除，排除水的速度应快于混凝土浇筑的速度。在水箱内做出标记，随时掌握水箱内放出水的重量。水箱自身的重量及主梁前端除人员、小型机具、吊篮、水之外的其它荷载做为恒载计入7.1中1600t压重之内。7.3、压重顺序：总体顺序：10号主梁8号主梁9号主梁。分项顺序：前四道横梁25%50%75%100%混凝土替换压重焊接合拢段劲性骨架安装加强桁架。8、吊篮安装为方便施工，可以在配重加载前安装合拢段吊篮，详见合拢段吊篮设计图。9、劲性骨架安装及加强桁架9.1、吊篮安装完毕后，根据施工监控部门的
36、要求测全桥标高、索力及轴线偏位，达到要求后，焊接合拢段劲性骨架。骨架安装前清除桥上一切不必要的物品，明确合拢施工所需物品和机具重量及所在位置，报送监控部门，对主梁标高及轴线偏位进行连续观测，测量间隔时间为2-3小时。观测内容包括：温度、主梁高程、合拢段长度、梁端悬臂高差及横向偏差，找出变化规律，确定合拢骨架的长度及合拢段高程。必要时对压重进行适当调整，以调整桥面高程。劲性骨架焊接选择在一天中气温相对稳定且无大风状态下进行，安装温度应满足设计要求，先将连接型钢全部安装到预定位置，待条件达到要求后，安排多位电焊工作人员对全部焊口同时施焊，一次成型，尽量在短时间内完成。劲性骨架安装同时，拆除临时支座
37、。劲性骨架安装完成后,将边塔处的临时水平约束拆除。9.2、合拢劲性骨架安装完成后，为加强劲性骨架的刚度，保证合拢段两侧主梁高程一致，在合拢段上安装加强桁架，加强桁架用贝雷梁构成，用32J高强精轧螺纹做钢杆，详见合拢段吊篮设计图10、合拢段混凝土合拢段使用掺加膨胀剂的混凝土，在浇筑顶板时，为防止桥面裂缝，在混凝土中掺加聚丙烯纤维。合拢段混凝土配比由中心试验室配制，经监理工程师批准后实施。浇筑顶板的混凝土配比为：砂:碎石:水泥:水:泵送剂:膨胀剂:聚丙烯纤维=717:1053:470:166:10:50:1其它部位混凝土配比为：砂:碎石:水泥:水:泵送剂:膨胀剂=726:1044:470:166:
38、10:50本次浇筑总方量约为70m3，计划浇筑时间为3小时，平均每小时浇筑混凝土约24m3。现场的材料储备为水泥125t，砂410 m3，碎石520 m3，泵送剂1t，膨胀剂500kg，聚丙烯纤维80kg，能充分满足合拢段混凝土的供应要求。11、合拢段钢筋、预应力安装合拢段钢筋采用现场绑扎。根据环形锚位置确定预应力钢绞线下料长度。纵向主筋采用一端为墩精直螺纹另一端采用焊接连接，按照规范要求接头交错布置，合拢段钢筋长度根据实际测量尺寸现场下料，要求误差1cm。钢筋、预应力施工工艺详见挂篮施工方案。12、混凝土浇筑及养生12.1、浇筑前准备施工前准备好木板，待斜腹板拐角处浇筑完毕后铺上木板，防止翻
39、浆。浇筑前用喷雾器喷洒模板及湿接缝处混凝土表面，以保持其湿润。12.2、混凝土浇筑顺序混凝土浇筑时，采用2台混凝土拖式泵车，从两端对称浇筑，顺序为：边箱底板斜腹板直腹板顶板。12.3、混凝土浇筑混凝土的浇筑时间由设计和监控部门确定，应在一天中温差变化较小且温度较低的时段进行浇筑，在升温条件下养生。一般在夜间23：00以后浇筑，浇筑时间控制在3h之内。浇筑时要加强振捣，浇筑完成后注意抹平与养生。在混凝土浇筑过程中，同步撤除与主梁混凝土同重的压重，每个合拢段86t。用水箱盛水做与混凝土浇筑时同步撤除的压重，置于N26和J12横隔梁附近，每端放置43t。在混凝土浇筑过程中合拢段高程应不发生变化，用水
40、准仪做跟踪观测，发现变化可通过调整水箱出水量加以控制。为减小斜拉索振动对主梁的影响，合拢段施工时应对张拉完成的全部斜拉索安装临时减速振器。12.4、抹平及养生混凝土浇筑后用刮杆沿两端混凝土表面整平，再用泥板抹平压实。混凝土初凝前再用泥板进行二次碾压以使混凝土表面进一步平整和防止收缩裂缝。二次抹平的同时用双层土工布覆盖混凝土表面并及时洒水养生。混凝土表面应覆盖严密，并将覆盖物压牢系紧。洒水应连续，均应，以保持混凝土表面湿润为准。二次抹平后混凝土强度达到2.5Mpa前严禁踩踏混凝土。12.5、后勤保障合拢时间应在夜间进行，施工人员的就餐、防护用品，安全管理及照明、通讯、物资供应由后勤人员负责安排。
41、施工时在桥面和底板等位置应设置足够的照明和防护设施。13、冬季混凝土施工准备13.1、概述根据目前施工状况，合拢段混凝土浇筑时间估计在11月18号左右，气象资料显示本地11月份历年平均气温为4.1，处于冬季施工的临界状态。当室外平均气温连续5天低于5时，或混凝土浇筑时气温低于-5，我部即按冬季施工计划安排施工。 冬季施工的重点是控制混凝土入模温度及新浇混凝土的保温。为此我们拟采用热水拌和、延长搅拌时间、混凝土罐车保温、加快浇筑速度、用保温材料及时覆盖等手段保证混凝土的施工质量。13.2、主要冬季施工机具、材料：拌和站备有1t燃煤锅炉1座，施工现场准备电热炉8台及蓬布、棉被若干。13.3、混凝土
42、施工13.3.1混凝土拌和砂石料的防护措施：砂石料进场前除进行正常检验外，还应对含水量进行严格控制，含水量大的经晾晒后方可码方。雨雪天及夜晚用蓬布覆盖，防止砂石料带有冰雪和冻结成块。拌和用水：使用热水拌和，拌和站备有1t然煤锅炉1座，混凝土拌和时，先把水加热到40-50，开机前，用热水冲冼搅拌机，投料后加热水搅拌，时间较常温时延长50%。保证混凝土拌和物的出机温度不低于10，入模温度不低于5。13.3.2混凝土的运输混凝土采用罐车运输，并尽可能缩短混凝土在罐车内的停留时间，混凝土罐车的蓄料斗外缠绕保温布，混凝土拖式泵的泵管外用定型厚发泡材料包裹，以防止温度散失过快。13.3.3混凝土的浇筑合拢
43、段箱梁为空心结构，混凝土厚度较小，为防止新浇混凝土受冻，用棉被包裹底模，棉被用铁丝连成一体，固定在底模上，混凝土顶面及侧面用蓬布和双层土工布覆盖。土工布带塑料薄膜的一面与混凝土表面接触，起到保温保湿的作用。13.3.4混凝土的养护混凝土浇筑完成后当气温低于5时，养护以保温、保湿为主，表面干燥时，用温水喷洒表面，以保持表面湿润但不形成水流为准，不得向混凝土表面喷洒冷水。拆模后混凝土的表面温度与环境温度差大于15时，混凝土表面应继续覆盖保温养护。13.4、钢筋、预应力施工加工钢筋主要注意气温的变化，避开气温较低的时段，不在气温低于-20时焊接钢筋，不在气温低于-15对钢筋进行冷拉，气温达不到上述要
44、求时，应转移至工棚内加工。张拉预应力钢束时的温度不宜低于-15。14、张拉合拢束混凝土强度达到设计要求后，张拉合拢预应力束HT3HT6、HB2HB5，张拉完成后进行封锚压浆。拆除临时预应力束0CB1、1CB1（与2CB2对应的1CB1和0CB1不拆除）及2CB1。张拉顺序按设计部门要求进行。张拉完成合拢束后，进行压浆封锚。15、合拢清除工作岸侧吊篮脱模后，用四个导链与钢丝绳辅助，直接落到地面，河侧吊篮先将模板部分拆除至桥面，型钢部分用导链整体下落到船上或逐根吊装至桥面运走。岸侧挂篮在前鼻处设置前吊点，在中悬挂杆处设置后吊点，用四根精轧螺纹配合千斤顶将挂篮下移至地面；河侧挂篮用千斤顶驱动，转移岸
45、边时，下落至地面。同时将桥面压重去除16、第三次张拉斜拉索主梁临时约束解除后，第四次张拉斜拉索，根据设计及监控部门的要求进行，先张拉A12、J12、N26，进行标高、索力、塔柱偏位测量；再张拉A11、J11、N25，张拉完成后，再进行标高、索力、塔柱偏位测量。17、合拢前的计划安排日期工作内容备注中塔边塔10.13浇注CB24段砼NSB11段钢筋绑扎10.14混凝土养生，挂N26号索浇注NSB11段混凝土10.15混凝土养生，挂N26号索混凝土养生、桥面清理10.16混凝土养生，挂N26号索混凝土养生、桥面清理10.17CB24段预应力及N25号索张拉混凝土养生、桥面清理10.18挂篮准备前移
46、主梁预应力及J12、A12号索张拉10.19CB24段挂篮前移NSB11段挂篮后撤，10.20挂N26号斜拉索， 8号主梁挂篮锚固、桥面清理10.21挂N26号斜拉索及张拉10号主梁压配重10.22CB25段钢筋绑扎10号主梁压配重10.23CB25段钢筋绑扎10号主梁压配重10.24CB25段钢筋绑扎10号主梁压配重10.25CB25段混凝土浇筑10号主梁压配重10.26CB25段混凝土养生10号主梁压配重10.27CB25段混凝土养生10号主梁压配重10.28CB25段混凝土养生10号主梁压配重10.29张拉N26号索10号主梁压配重10.30中塔挂篮后撤、锚固10号主梁压配重10.31安
47、装合拢段吊篮安装合拢段吊篮11.1安装合拢段吊篮安装合拢段吊篮11.2主梁压配重、穿合拢束8号主梁压配重11.3主梁压配重、穿合拢束8号主梁压配重11.4主梁压配重、穿合拢束8号主梁压配重11.5主梁压配重、穿合拢束8号主梁压配重11.6主梁压配重、穿合拢束8号主梁压配重11.7主梁压配重、穿合拢束8号主梁压配重11.8主梁压配重、穿合拢束8号主梁压配重11.9主梁压配重、穿合拢束8号主梁压配重11.10安装合拢段劲性骨架11.11拆除主梁临时约束11.12绑扎合拢段钢筋11.13绑扎合拢段钢筋11.14绑扎合拢段钢筋11.15机动时间、条件允许后浇筑混凝土11.16机动时间、条件允许后浇筑混凝土11.17机动时间、条件允许后浇筑混凝土11.18浇筑合拢段混凝土18、合拢段施工荷载清单部位种类序号材料名称重量（t）备注8#墩压重1挂篮150根据实测进行调整2砼块245196块砼（1.25t/块）3水箱5容积43m3施工活载4吊篮及桁架65水436施工人员、机具1.3合计450.39#墩压重1砂袋3952300袋（一侧）2水箱5一侧施工活载3吊篮及桁架6一侧4布料机5一侧5水43一侧6施工人员、机具1.3一侧合计