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齐齐哈尔市通东路立体交叉于1933年日伪时期修建,净高为3.2m、双孔净孔为5m的版梁桥。解放后,随着城市交通运输的日益增长,原有双孔立交桥已远远滿足不了需要,需要迅速改造。为此,确定将原有双孔立交桥面下降0.8m,使凈高滿足4m,做为通行机动车、兽力车之用,另在原桥左、右侧各增设一单孔4m箱涵,做为自行车、人行之用。该桥位于齐齐哈尔站北場咽喉区,桥上共有线路八条、道岔四组,每昼夜行车对数很多,铁路运输十分繁忙。对采用什么样的施工方案,能最少地干扰铁路运输和保证行车安全
Qiqihar Tong East Road, three-dimensional cross built in 1933 during the Japanese-Puppet period, the net height of 3.2m, two holes with a hole 5m version of Liangqiao. After the liberation, with the increasing growth of urban transport, the original double-overpasses can not meet the needs of far, need rapid transformation. To this end, to determine the original double-deck overpass deck down 0.8m, to meet the net height of 4m, as the passage of motor vehicles, animal vehicles, the other in the original bridge left and right to add a single hole 4m box culvert, do For bicycles, pedestrians use. The bridge is located in Qiqihar Station North Field throat area, the bridge a total of eight lines, turnout four groups, driving a lot of logarithmically every day and night, rail transport is very busy. What kind of construction plan is adopted can at least disturb the railway transportation and ensure traffic safety