Intelligent testing and evaluating method for properties of flowing waste soil in tunneling soil cabin and device

Abstract

The invention discloses an intelligent testing and evaluating method for properties of flowing waste soil in a tunneling soil cabin. The method comprises the following steps: setting an auxiliary device inside a tunneling soil cabin; sensing impedance torque variation rules of the auxiliary device under different flowing waste soil properties, and establishing a relationship of the torque variation rules and the flowing waste soil properties; sensing impedance torque of the auxiliary device when carrying out practical testing and evaluation; confirming the properties of the flowing waste soilinside the tunneling soil cabin according to torque amplitude and variation intensification rules, if the torque amplitude and the variation intensification are both relatively small, judging that themoving waste soil is at an ideal flowing molding state. An intelligent testing and evaluating device for the properties of the flowing waste soil in the tunneling soil cabin comprises four parts, namely a shearing plate mechanical part, a protection cover part, a shearing torque testing part, a driving part and the like. By adopting the method and the device, properties of waste soil in a key area of a soil cabin can be tested in real time, waste soil with adverse properties can be improved through waste soil improvement holes nearby, then an ideal waste soil state can be maintained inside the soil cabin in real time, and dynamic balance of a tunneling excavation face can be ensured ultimately.

Description

Technical field [0001] The invention belongs to the field of shield machine equipment manufacturing, and relates to shield machine intelligent equipment, in particular a muck soil property evaluation device. Background technique [0002] The construction deformation of shield tunneling consists of three parts: the tunneling face, the over-excavation of the curved shield and the stratum loss of the shield tail. Over-excavation can be overcome by controlling the tunnel alignment and soil pre-reinforcement in the underpass area. Shield stratum loss has been developed from the material field to accurately compensate for stratum loss. The balance of the driving face is traditionally applied on the excavation face. It is controlled by the support pressure that is approximately balanced with the static water and soil pressure in the front. The actual horizontal support pressure distribution of the measured excavation surface is mostly rectangular or similar, which cannot fully adapt to ...

AI Technical Summary

Problems solved by technology

[0005] On the one hand, the existing methods for evaluating the behavior of muck in soil bins cannot test the behavior of muck during its movement in the bin; It is also difficult to simulate the impact on the actual complex environment of the shield tunnel, such as the two moving boundaries of the cutter head and the screw conveyor.

Images