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公开(公告)号:US4167290A
公开(公告)日:1979-09-11
申请号:US839278
申请日:1977-10-04
申请人: Hironobu Yamazaki , Eiji Sugino , Yoshiaki Yuchida
发明人: Hironobu Yamazaki , Eiji Sugino , Yoshiaki Yuchida
摘要: A shield type hydraulic tunnel boring machine having means for detecting an occurrence of excess excavation due to accidental collapse in tunnel face ground apt to occur during tunnel boring works through soft and unstable ground and for further determining the location, shape, scale and the like of such excess excavation occurred is provided. The means comprises optimumly a plurality of ultrasonic wave transmitting and receiving devices disposed as spaced at least along a radial line on the front surface of a substantially disk shaped rotary cutter head of the machine for transmitting ultrasonic waves in forward and upward directions and receiving reflected waves from tunnel face ground wall, a wave transmission and reception controlling means, and a transmission-to-reception time interval detecting means for determining distances from the respective wave transmitting and receiving devices to the ground wall. The wave transmitting and receiving devices include ones oriented in diagonally angled directions with respect to the axial line of the machine shield to cover diagonal upward range in front of the cutter head, detected time interval values of which are further modified depending on the diagonal angles of these devices to determine the heights of the ground wall in the diagonally upward directions. The respective detected values of the plurality of the devices are scanned to determine the location, shape, scale and the like of the excess excavation.
摘要翻译: 一种盾构式液压隧道掘进机,其具有用于在隧道掘进工作期间通过软和不稳定的地面检测隧道面的意外塌方发生的过度挖掘的装置,并进一步确定位置,形状,尺度等 提供了这种多余的挖掘。 该装置最好包括多个超声波发射和接收装置,其至少沿着沿机器的大致圆盘状的旋转刀头的前表面上的径向线间隔设置,用于在前后方向上发射超声波并接收反射波 从隧道面接地墙,波发送和接收控制装置,以及发送到接收时间间隔检测装置,用于确定从各个波发送和接收装置到地面墙的距离。 波发送和接收装置包括相对于机器屏蔽的轴线以对角线方向定向的方式,以覆盖在刀头前方的对角线向上范围,其检测的时间间隔值根据对角线 这些装置用于确定地面墙在斜向上方向上的高度。 扫描多个装置的相应检测值,以确定多余的挖掘的位置,形状,尺度等。