
300工人轮班上阵 西直门桥大修首日提前拆桥(图)
|

 |
|
中新网9月9日电8日晚22时30分,北京西直门北立交内环通道桥大修正式动工,连接桥台和梁板的铆栓成为第一批被拆除的目标。由于施工进展迅速,施工人员提前半小时就进入了拆桥的工序。
据京华时报报道,8日晚22时30分,西直门桥改造工程总指挥丁建平下达了第一个施工指令,施工工人随即点燃了焊枪,开始焊断连接桥台和梁板的铆栓。300名工人参加施工,根据工种主要分为拆桥、拉梁、架梁三类。工人采取轮班制,第一班从22点起一直工作到第二天凌晨5点半。此前的21点50分,工人们已经提前进入现场。与此同时,桥梁大师罗玲、施工专家贺长俊、桥梁教授徐贺文、钢结构专家史永吉、设计专家应子龙五位专家,也提早汇集到施工现场,对即将开始的工程的一道程序进行最后的技术准备。22点断路后,等候在附近的破碎炮和液压剪陆续进入现场。
施工原计划分为4项内容:1小时切除铆栓,2小时拆除排梁(即旧桥下原来支撑的钢梁),半小时防止轮胎减震,最后是拆除旧桥桥梁。昨晚,工程进展非常顺利,原计划今天凌晨1点开始的拆除桥面工作,提前了半个小时到来——今晨0点30分,施工人员使用两台破碎炮开始拆除旧桥。
据工程负责人戴平志介绍,切割铆栓原计划在断路前就进行,“但是考虑到桥梁的安全,我们决定将这个工作延迟到今晚断路后进行。”而在桥下布设轮胎,“主要是减震。因为西直门桥下有地铁和各种管线,为了保护桥下的设施,要在现场放两层几百个轮胎,旧桥的残渣可以落在轮胎上”。
按原计划,进入拆桥阶段后,应首先在被拆桥段两头将桥面切割,以保护桥墩。昨晚,施工人员临时调整计划,放弃了切割桥面的计划,直接使用破碎炮拆桥。施工人员表示,直接使用破碎炮拆桥也不会破坏桥墩而且能节省出更多的时间将桥拆完。
今天凌晨,北京市交通委副主任周正宇表示,“如果到今天下午4点半,施工人员能顺利将旧桥拆除掉,那么对下周一早上顺利通车我们将越来越有信心。”他还表示,他们不希望用战备钢桥,也有信心不用战备钢桥。
据了解,8日19时后,西二环由南向北前往西直门方向的车流比平时至少少了1/3,车辆通行正常。交警和交通协管员陆续赶到,指挥交通。22时断路正式开始,施工工人准时在中大安路口正对的二环路上摆放第一个道路隔离墩。此时还不断有车辆驶来。施工人员并不是直接将通往积水潭的二环路拦腰截断,而是先用上百个隔离墩将通往积水潭方向的两条车道和通往明光村的三条车道纵向切开,大约在距施工区域不足200米时才实行横向拦截。22时15分,道路被完全切断。市公交集团相关负责人表示,截至今天凌晨零点,不但公交车一切正常,在所有绕行线路中,没有出现拥堵点段,施工人员的施工也顺利进行。(王一波、宋合营、钱卫华)
|
|
|



|
|
|
|


今日运程如何?财运、事业运、桃花运,给你详细道来!!! |
 |
|
|
|


|
|
 |
 |
月亮之上 |
 |
 |
 |
|
 |
秋天不回来 |
 |
 |
 |
|
 |
求佛 |
 |
 |
 |
|
 |
千里之外 |
 |
 |
 |
|
 |
香水有毒 |
 |
 |
 |
|
 |
吉祥三宝 |
 |
 |
 |
|
 |
天竺少女 |
 |
 |
 |
|
 |
|

|
|
|



 |
|
 |
 |
一个人哭 |
 |
|
 |
退后 |
 |
|
 |
断了的弦 |
 |
|
 |
还是朋友 |
 |
|
 |
水晶蜻蜓 |
 |
|
 |
唱给你的歌 |
 |
|
|
 |
 |
|
 |
|

|