狭小空间条件下盾构隧道物料运输技术

Material Transportation Technology of Shield Tunnel in Narrow Space

狭小空间条件下盾构隧道出渣进料效率低,严重影响施工进度和成本。依托武汉轨道交通7号线一期工程第7标段,研发了变频式轨道横移变跨装置和快速出渣用轨道运输系统,在盾构井内设置轨道横移装置,在隧道内设置双线轨道、材料临时存放区、小型门式起重机及环形轨道,解决了狭小空间条件下盾构隧道出渣进料效率低的难题,有效降低了劳务用工量和施工成本,缩短了大型设备使用周期。

Under the condition of narrow space,the mucking and feeding efficiency of shield tunnel is low,which seriously affects the construction progress and cost.Based on the 7th bid section of the first phase project of Wuhan Rail Transit Line 7,the variable frequency type track transverse variable span device and the track transportation system for rapid slag discharge are developed.The track transverse movement device is set in the shield well,and the double track,temporary storage area of materials,small gantry crane and ring track are set in the tunnel,which solves the problem of low efficiency of mucking and feeding in shield tunnel under the condition of narrow space,and effectively reduces the amount of labor,the service period of large equipment and the construction cost.