哈尔滨西站滑移施工方案(最终版本).doc
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1、上海业升机电控制有限公司 哈尔滨西站工程1 方案整体思路- 1 -2 液压同步顶推滑移关键技术及设备- 1 -2.1 关键技术和设备- 1 -2.2 液压同步顶推滑移原理- 1 -2.3 液压同步顶推滑移技术特点- 3 -2.4 滑移速度和加速度- 3 -2.4.1 滑移速度- 3 -2.4.2 滑移加速度- 3 -2.5 液压顶推器- 4 -2.6 液压泵源系统- 4 -2.7 计算机同步控制及传感检测系统- 4 -3、液压顶推滑移系统与传统液压滑移系统的比较- 5 -4 液压顶推系统配置- 6 -4.1 总体配置原则- 6 -4.2 液压顶推器的选择- 6 -4.3 泵源系统- 7 -4.
2、4 控制系统- 7 -5 滑移临时措施设计- 7 -5.1滑移临时措施设计- 7 -5.2 柱脚滑移轨道设计- 8 -5.3 防卡轨措施- 10 -5.4 顶推点型式- 10 -6临时措施安装注意事项- 11 -6.1 滑道安装要求- 11 -6.2 滑道侧挡板的安装要求- 11 -7 液压系统同步控制- 12 -7.1 总体控制原则- 12 -7.2 滑移同步控制策略- 12 -8 液压顶推滑移系统调试- 12 -8.1 调试前的检查工作- 12 -8.2 系统调试- 12 -8.3 分级加载试滑移- 13 -8.4 滑移过程控制要点- 13 -9施工组织体系- 13 -10 主要液压系统设
3、备- 14 -11 滑移施工用电- 14 -12 应急预案- 15 -12.1 现场设备故障应急预案- 15 -12.1.1 液压顶推器故障- 15 -12.1.2 泵站故障- 15 -12.1.3 油管损坏- 15 -12.1.4 控制系统故障- 16 -12.2 意外事故应急预案- 16 -12.3 防雨和防风应急预案- 16 -13安全、文明施工- 16 -附图:- 18 -tomorrow I go fishing to the East. Bosses dont have fish to eat. Positions out of a fat man: going on now in
4、 the past, the Imperial Army came after eating is bad. Old Kings Head Rush thanked the captain rushed to the base for Hong Kong, Shen Yuezhen said: I think so well! Aboard the ship, told through again. Months Pro happy meals freshly prepared, Scull chunks post immediately. Card that Fu sheng of the
5、Elves take care of: old Kings Head tomorrow, your fish such as we Captain! Know this is the Kings voice, by far. At night, the ship to port, next to see a few xieye of small fishing vessels, stop eating. Alex after eating two adjacent boats stopping by. Learned from the mouths of local fishermen her
6、e have is guerrilla zones, East Taihu Lake infested with bandits, Miaogang landmark, quiet at night, sometimes in the morning zhenze Japan Devils sweep, afternoon zhenze, West of guerrilla activities. Back on the boat, monthly Pro action decided by the first programme, go to Miaogang, find focal poi
7、nt connector. Gently open the ship, sailed into the trackless Yang. Months Pro has lost its way, dont know direction, and had to let the old King was driving. Old King pulling two oars said: good day to see the stars, cloudy day by feel. You take a break, go to class in a 构词成分。. No, the cabin there
8、was grunting . Shout . snore. The next morning, Miaogang the Lion Bridge a mourning fishermans woman. Head wrapped in white cloth, foot-wear white shoes, selling fish in a fish line. Her a red flower on the toe in his left foot, a white flower on the toe of his right foot, which is a joint sign. Wom
9、en were observed on the street that a tobacco stores, posted a lot of smoke on the door, there is no old knife brand. Shopkeepers facing West, there are another two strangers looking around. Months Pro knows this focal point has been exposed, she quickly sold the fish back to the Lake, get on Board
10、of the old King said:is Shen Yuezhen, xiaozhengxin them. A few days ago, Shen Yuezhen listen to Jones Lang LaSalle said his family had firearms, ammunition, Ding Bingcheng newly established Jiangsu Taihu Lake is in need of volunteers for the war guns and ammunition, will mobilize he offered his gun
11、out. This small secondary progressive, PWC. Today, he leads Shen Yuezhen in backyard behind a rock. Several people quickly dug seven or eight rifles, four small pistol and some bullets, sack up, carried off the secondary courtyard. To xibaiyang, a small fishing boat approaching, Shen Yuezhen on thei
12、r fishing vessel disappeared into the mist. Shen Yuezhen is a peripheral organization of the central section of the East China peoples armed forces of the anti-Japanese National Salvation Association of a Communist and KMT: Wu Jiang County Governments traffic warden. She returned to her own house Da
13、i Jia Wan, think of importation of firearms program, is afraid of diwei check months Pro frown. The next day, she came to the fishermens uncle Wangs boat, said importation of firearms, Wang not only down, but also a good idea, brows that make the month pro stretch . Bei Ma Yang, ship and base for Ho
14、ng Kong, the Sun has been the West, the monthly Pro will kill fish, wash, place a oil sauce, cooking rice, steamed fish in the rice cooker on. Wang mentioned fish basket selling on minglilai, after the Elves when the sentry, Wang carried out from the basket of three good Mandarin fish, said with a s
15、mile: Mister lucky, MA Yang, this is net live fish, Fu shengs brother to try it. The elves called Fu sheng came holding a fish said: old Kings Head, today luck was not bad! Thanks to the blessing of day, only a little fish. Brothers, let me of the Ming dynasty to the North of the road Yang swings to
16、 get some fish? No, Ah, Eastern foreigner to prohibit! and I am not the first, not to master. That is a shame- 23 -1 方案整体思路根据本工程的施工方案:屋面结构划分为24个滑移单元后分3组累积滑移,3个滑移组分别为第19单元(共计10个滑移单元)、第1019单元(共计10个滑移单元)、第2024单元(共计5个滑移单元)。安装以上施工方案,屋面滑移设置2条轨道,分别在6轴和11轴上,根据滑移单元的大小在相应的轨道上设置液压顶推器。2 液压同步顶推滑移关键技术及设备2.1 关键技术和
17、设备本工程中采用液压顶推滑移的施工工艺,所选用步进式液压顶推器,是一种通过后部顶紧,主液压缸产生顶推反力,从而实现与之连接的被推移结构向前平移的专用设备。此设备的反力结构利用滑道设置,省去了反力点的加固问题。液压顶推器与被推移结构通过销轴连接,传力途径非常直接,启动过程中无延时,动作精确度好。由于其反力点为步进顶紧式接触,不会在滑移过程中产生相对滑动,所以同步控制效果更好。步进式的工作过程,使得同步误差在每个行程完成后自然消除,无累积误差,同步精度很高。液压顶推同步滑移主要设备如下: YS-PJ-50型液压顶推器; YS-PP-60型液压泵源系统; YS-CS-01型计算机控制系统。2.2 液
18、压同步顶推滑移原理“液压同步顶推滑移技术”采用液压顶推器作为滑移驱动设备。液压顶推器采用组合式设计,后部以顶紧装置与滑道连接,前部通过销轴及连接耳板与被推移结构连接,中间利用主液压缸产生驱动顶推力。液压顶推器的顶紧装置具有单向锁定功能。当主液压缸伸出时,顶紧装置工作,自动顶紧滑道侧面;主液压缸缩回时,顶紧装置不工作,与主液压缸同方向移动。液压顶推器工作流程示意图如下表1。表1、液压同步顶推器工作流程表第一步:液压顶推器顶紧装置安装在滑道上,靠紧侧向挡板;主液压缸缸筒耳板通过销轴与被推移结构连接;液压顶推器主液压缸伸缸,推动被推移结构向前滑移。第二步:液压顶推器主液压缸连续伸缸一个行程,顶推被推
19、移结构向前滑移一端距离(一个步距)。第三步:一个行程伸缸完毕,被推移结构不动;液压顶推器主液压缸缩缸,使顶紧装置与滑道挡板松开,并跟随主液压缸向前移动。第四步:主液压缸一个行程缩缸完毕,拖动顶紧装置向前移动一个步距,一个行程的顶推滑移完成,从步序1开始执行下一行程的步序。2.3 液压同步顶推滑移技术特点本工程中高架候车通廊结构采用液压同步滑移施工技术,具有以下的优点: 采用“液压同步顶推滑移施工技术”施工大跨度钢结构,技术成熟,有大量类似工程成功经验可供借鉴,安装过程的安全性有保证; 滑移过程中采用计算机同步控制,液压系统传动加速度极小、且可控,能够有效保证整个安装过程的稳定性和安全性; 液压
20、同步顶推设备、设施体积和重量较小,机动能力强,倒运和安装方便; 滑移顶推、反力点等与其他临时结构合并设置,加之液压同步滑移动荷载极小的优点,可使滑移临时设施用量降至最小。2.4 滑移速度和加速度2.4.1 滑移速度液压顶推滑移系统设备的水平牵引速度取决于液压泵源系统的配置及单台液压顶推器所分配的流量、其他辅助工作所占用的时间。在本工程中,液压顶推水平滑移最大速度约15米/小时。2.4.2 滑移加速度液压同步顶推滑移作业过程中各点速度保持匀速、同步。在启动和制动时,其加速度取决于液压泵源系统流量及液压顶推器的工作压力,加速度极小,以至于可以忽略不计。这为滑移过程中屋面钢结构、下部支承结构以及所有
21、临时措施的安全性增加了保证度。2.5 液压顶推器本工程中拟采用YS-PJ-50型液压顶推器,液压顶推器如图1所示。图1、YS-PJ-50型液压顶推器2.6 液压泵源系统液压泵源系统为液压顶推器提供动力,并通过就地控制器对多台或单台液压顶推器进行控制和调整,执行液压同步顶推滑移计算机控制系统的指令并反馈数据。液压泵源系统如图2所示。图2、YS-PP-60型液压泵源系统2.7 计算机同步控制及传感检测系统液压同步顶推滑移施工技术采用传感监测和计算机集中控制,通过数据反馈和控制指令传递,可全自动实现同步动作、负载均衡、姿态矫正、应力控制、操作闭锁、过程显示和故障报警等多种功能。本公司拟用于本工程的液
22、压同步顶推滑移系统设备采用CAN总线控制、以及从主控制器到液压顶推器的三级控制,实现了对系统中每一个液压顶推器的独立实时监控和调整,从而使得液压同步滑移过程的同步控制精度更高,更加及时、可控和安全。操作人员可在中央控制室通过液压同步计算机控制系统人机界面进行液压顶推过程及相关数据的观察和(或)控制指令的发布。通过计算机人机界面的操作,可以实现自动控制、顺控(单行程动作)、手动控制以及单台顶推器的点动操作,从而达到钢结构整体滑移安装工艺中所需要的同步滑移、安装就位调整、单点毫米级微调等特殊要求。图3、液压同步滑移计算机控制系统人机界面3、液压顶推滑移系统与传统液压滑移系统的比较传统的液压滑移系统
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