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Replacement device for earth pressure gauge of mud pressure shield tunneling machine and exchange method of earth pressure gauge of mud pressure shield tunneling machine

机译:泥水盾构掘进机土压力表的更换装置及泥水盾构掘进机土压力表的更换方法

摘要

PROBLEM TO BE SOLVED: To easily exchange an earth pressure gauge of a mud pressure shield machine.SOLUTION: An earth pressure gauge 11a of a mud pressure shield machine is provided in a seal housing 11bh communicating with a through-hole 7a formed in a barrier 7 at a freely movable state, and is structured to be exchangeable by being taken out to a machine interior side. When exchanging the earth pressure gauge 11a, a slurry forming material is injected as a replacement material into a space on the opposite side of the earth pressure gauge 11a through an injection pipe 11bt while retreating the earth pressure gauge 11a, thereby preventing mud in a chamber from intruding into the seal housing 11bh through the through-hole 7a. After the earth pressure gauge 11a is made to retreat more than a sluice valve 11bp at a middle position of the seal housing 11bh, the sluice valve 11bp is closed and then the earth pressure gauge 11a is taken out from the seal housing 11bh and is exchanged.
机译:解决的问题:为了容易地更换泥压屏蔽机的土压力计。解决方案:在密封壳体11bh中设置泥压屏蔽机的土压力计11a,该壳体与形成在屏障中的通孔7a连通。图7所示的装置处于可自由移动的状态,并且通过将其取出到机器内侧而可更换。当更换土压力计11a时,在使土压力计11a后退的同时,通过注入管11bt将泥浆形成材料作为替代材料注入土压力计11a的相对侧的空间中,从而防止腔室中的泥浆进入。通过通孔7a进入密封壳体11bh。使土压力计11a在密封壳体11bh的中间位置后退至闸阀11bp以上后,关闭闸阀11bp,然后将土压力计11a从密封壳体11bh取出并进行更换。 。

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