Device for measuring attitude of shield in steel sleeve

Abstract

The invention discloses a device for measuring the attitude of a shield in a steel sleeve, which comprises a plurality of measuring blocks arranged on the outer side of one end of the steel sleeve, each measuring block is provided with a measuring contact, each measuring contact is provided with a pressure sensor, and the plurality of pressure sensors are electrically connected with a controller; according to the device for measuring the attitude of the shield in the steel sleeve, the protective deviation rectifying mechanism is arranged between the supporting ring and the fixed disc, the protective deviation rectifying mechanism can enable a tunnel portal and the steel sleeve to be connected and can also enable the tunnel portal and the steel sleeve to be independent, and when a shield enters the tunnel portal, the shield can be accurately positioned in the tunnel portal. Vibration force generated by tunneling enables vibration force received by the steel sleeve to be reduced under the action of the protective deviation rectifying mechanism, the stability of the steel sleeve is guaranteed, meanwhile, under the action of cooperation of the protective deviation rectifying mechanism and the measuring block, the posture of the shield entering the steel sleeve is measured, and meanwhile the deviation rectifying effect on the shield is achieved. And the stability of the shield entering the steel sleeve is ensured.

Description

technical field [0001] The invention relates to the technical field of civil engineering equipment, in particular to a device for measuring the attitude of a shield in a steel sleeve. Background technique [0002] The purpose of the steel sleeve shield starting and receiving is to ensure that the shield is not leaking when the shield is starting or receiving, and the earth pressure is established in the soil bin when the water-rich sand layer or the surrounding environment is complicated. Therefore, it is not enough to only rely on the rubber cord panel and the door pressure plate to seal the door. When the shield tunnel enters the hole, a special form of door sealing is often adopted, that is, a steel sleeve with a length of 800mm is added to the hole in the well. , The rear end of the steel sleeve is provided with a sealing device, and the cylinder body is provided with two wire brush seals. [0003] And according to the existing patent application number: CN202010641109...

AI Technical Summary

Problems solved by technology

In the actual operation of the existing shield machine, before the shield machine enters the cylinder sleeve, it first enters the inside of the steel sleeve through the door, and the existing steel sleeve and the steel ring at the door are sealed and connected to each other. As a result, when the shield machine digs into the portal, the excavation of the shield machine produces a large vibration force, which causes the steel ring at the portal to shake, and further causes the steel sleeve connected to the steel ring to shift. It not only affects the accurate detection of the shield machine's entry attitude, but also cannot guarantee the tightness of the connection between the steel sleeve and the steel ring at the door. Therefore, we propose a shield attitude measurement device inside the steel sleeve

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