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?1.8M DOUBLE SHIELD TBM FOR MIXED GROUND SEWER TUNNELS IN CINCINNATI

机译:?辛辛那提混合地下水道隧道的1.8米双盾TBM

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A Robbins “Rockhead” ?1.8m double shield TBM is being used to excavate soft shale and harder limestone in Cincinnati, Ohio. Seven tunnels will be excavated, with lengths ranging from 250 to 610 meters (816 to 2,014 LF), for a total of 2,875 meters (9,430 LF). These are relatively long tunnel drives for such a small-diameter excavation. Primary support will be 100 mm (4 in WF) steel ring beams on 1.5 meter (5 ft) centers. This paper will describe the special TBM, muck haulage, and launch shaft features which were carefully implemented to support rapid mobilization and excavation on this small diameter project.
机译:罗宾斯“Rockhead”?1.8米双盾TBM正在挖掘俄亥俄州辛辛那提的软页岩和更硬的石灰岩。七个隧道将被挖掘,长度从250到610米(816到2,014 LF),总共2,875米(9,430 LF)。这些是相对长的隧道驱动,用于这种小直径的挖掘。初级支撑将是1.5米(5英尺)中心的100毫米(WF)钢环梁。本文将描述特殊的TBM,Muck Haulage和发射轴特征,仔细实施,以支持这一小直径项目的快速动员和挖掘。

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