公开(公告)号：US4068486A

公开(公告)日：1978-01-17

申请号：US767038

申请日：1977-02-09

申请人： Yoshiaki Uchida ,  Akira Nakaya ,  Kunitaka Saito

发明人： Yoshiaki Uchida ,  Akira Nakaya ,  Kunitaka Saito

IPC分类号： E21D9/13 ,  E21D9/06 ,  E21D9/12 ,  E21D9/00

CPC分类号： E21D9/12 ,  E21D9/093

摘要： An apparatus for automatically controlling tunnel face hydraulic pressure in a hydraulic chamber defined by a rotary cutter head and bulkhead in a shield type excavator used in hydraulic tunnel boring system including a pipe for feeding a hydraulic material with a feeding pump from a reservoir to the chamber and a pipe for discharging a mixture of the fed hydraulic material with ground formations excavated by the cutter head from the chamber to the reservoir with a discharging pump. The apparatus substantially comprises a first pressure gauge for measuring actual tunnel face hydraulic pressure in the chamber, a feeding-pipe bypass provided close to the chamber, a first pressure regulating valve provided in the bypass, a second pressure regulating valve in the feeding pipe bypassed by the bypass, a first pressure regulator in which a first predetermined feeding pressure is preset for comparing the actual pressure measured by the first gauge with the first predetermined feeding pressure and controlling the second valve responsive to any differences between the both pressures compared in the first regulator, a second pressure gauge for measuring fed-hydraulic-material pressure upstream the bypass a third pressure regulating valve provided in the feeding pipe upstream the second pressure gauge, and a second pressure regulator in which a second predetermined feeding pressure is preset for comparing the measured fed-hydraulic-material pressure with the second predetermined pressure and controlling the third valve responsive to any differences between the both pressures compared in the second regulator. The second predetermined feeding pressure is preferrably made slightly higher than the first predetermined feeding pressure.

摘要翻译： 一种用于在液压隧道掘进系统中使用的屏蔽型挖掘机中由旋转刀头和隔板限定的液压室中的隧道面液压自动控制的装置，包括用于将液压材料与供给泵从储存器供给到室的管 以及管道，用于将所输送的液压材料与由切割头从所述腔室挖掘的地层的混合物排出到具有排出泵的储存器。 该设备基本上包括用于测量腔室中的实际隧道面液压的第一压力计，靠近腔室设置的进料管旁路，设置在旁路中的第一压力调节阀，旁路输送管中的第二压力调节阀 通过旁路，第一压力调节器，其中预设第一预定进料压力以将由第一量规测量的实际压力与第一预定进料压力进行比较，并且响应于在第一压力下比较的两个压力之间的任何差异来控制第二阀 调节器，用于在旁路上游测量供给液压材料压力的第二压力表，设置在第二压力表上游的进料管中的第三压力调节阀，以及第二压力调节器，其中预设第二预定进料压力以比较 测量进料液压材料压力与第二预热 响应于在第二调节器中比较的两个压力之间的任何差异来控制第三阀。 优选地将第二预定进料压力略高于第一预定进料压力。

公开(公告)号：US4152027A

公开(公告)日：1979-05-01

申请号：US868533

申请日：1978-01-11

申请人： Kenichi Fujimoto ,  Kunitaka Saito ,  Masaharu Saito

发明人： Kenichi Fujimoto ,  Kunitaka Saito ,  Masaharu Saito

IPC分类号： E21D9/04 ,  E21D9/06 ,  E21D9/087 ,  E21D9/00

CPC分类号： E21D9/04 ,  E21D9/093

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 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 rod-shaped members capable of being extended out of and retracted into the machine. Amounts by which these members are paid out until they reach ground wall of any cavity due to the occurred excess excavation are measured to determine the actual state of such cavity. The means is provided preferably at a plurality of proper positions on a shield body of the machine and respective values of the measured amounts at these positions are recorded and displayed, whereby the location, shape, scale and the like of the occurred excess excavation can be confirmed.

摘要翻译： 一种盾构式液压隧道掘进机，其具有用于检测隧道面中由于意外塌方而发生的过度挖掘的装置，其易于在通过软和不稳定的地面钻孔期间发生，并且用于进一步确定其位置，形状，尺度等 提供了多余的挖掘。 该装置最优选地包括多个能够延伸到机器中并缩回到机器中的杆状构件。 测量这些成员由于发生的过多挖掘而到达任何空腔的地面墙之前的金额，以确定这种空腔的实际状态。 该装置优选地设置在机器的屏蔽体上的多个适当位置处，并记录和显示这些位置处的测量量的相应值，由此发生的多余挖掘的位置，形状，尺度等可以是 确认。