
7月29日,天津地铁11号线一期工程东丽三经路站~东丽六经路站区间左线盾构机顺利始发,标志着该区间正式步入盾构掘进施工阶段。
19229-W1工号盾构机是由中交天和自主研发的土压平衡式盾构机,开挖直径为6430mm,盾构掘进总里程1145.323m,该区间从东丽六经路站始发,途径五经路、景观湖、空地、西河及绿化带后,最终到达三经路站。区间隧道顶部最大埋深18.52m,区间地质以粉质黏土、淤泥质、粉砂为主,存在盾构机姿态难以控制,螺旋机喷涌等施工风险。

截至目前,中交天和南京分公司为天津地铁11号线一期工程提供的10台盾构机已进场7台,3台已始发,1台已贯通,3台正在装机调试阶段,面对多台盾构集中进场组装,天津项目部优化项目资源配置,严格把控装机调试质量,确保盾构机装机调试按照各个节点完成。
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