Method for monitoring abnormity of torque of cutter head of shield tunneling machine in real time
A cutter head torque, real-time monitoring technology, applied in the direction of earthwork drilling, mining equipment, tunnels, etc., can solve the problems that affect the driving speed, tool wear, etc., and achieve the effect of high accuracy and low computational complexity
Active Publication Date: 2020-09-25
STATE KEY LAB OF SHIELD & TUNNELING TECH +2
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Problems solved by technology
In the specific construction process, if the cutterhead torque is too small, the tunneling speed will be affected, while if the cutterhead torque is too large, it will cause severe tool wear
Method used
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0029] Embodiments of the invention:
[0030] The method for real-time monitoring of the abnormal torque of the cutter head of the shield machine of the present invention comprises the following steps,
[0031] Step S1:
[0032] Before the shield construction of the new ring starts, the whole ring extracts the historical operation data of the same model under similar geological conditions to form the data set data1.
[0033] Relying on the shield big data information collection platform, the sampler collects data from the PLC of the shield machine. The collected data contains more than 500 attributes, such as construction ring number, sampling time, total propulsion, propulsion speed, and cutterhead speed , cutterhead torque, etc. The data set data1 needs to meet the follow...
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The invention relates to a method for monitoring abnormity of torque of a cutter head of a shield tunneling machine in real time. The method comprises the following steps of: before shield tunneling construction of a new ring is started, extracting historical operation data of the same machine type under similar geological conditions in the whole ring to form a data set data 1; in the data set data1, deleting records with at least one of three attributes including the torque of the cutter head, the rotating speed of the cutter head and the propelling speed being 0 to form a data set data 2; eliminating records corresponding to abnormal values of the torque of the cutter head in the data set data 2 to obtain a data set data 3; counting the distribution condition of the torque of the cutterhead in the data set data 3 to generate a new ring of cutter head torque early warning line; and after the construction of the new ring is started, extracting operation data of the shield tunneling machine in real time, and if the value of the torque of the cutter head continuously exceeds the early warning line, displaying alarm information on a main operation interface of the shield tunneling machine. According to the method, the cutter head torque early warning line of each ring is calculated by adopting a statistical analysis method according to original construction data of the shield tunneling machine, and technical support is provided for safe construction of the shield tunneling machine.
Description
technical field [0001] The invention relates to the technical field of shield machine construction, in particular to a method for real-time monitoring of abnormal torque of a shield machine cutterhead. Background technique [0002] The shield tunneling method has become the main construction method for excavating tunnels and constructing urban subways. During the tunneling process, the shield machine continuously cuts the rock and soil with the rotation of the cutter head, and is pressed into the soil or mud tank through the opening of the cutter head, and then discharged out of the hole through the screw machine or the slurry pump; along the circumference Under the thrust of the arranged hydraulic jack, the shield machine is continuously pushed forward. When the shield machine advances the length of a segment (along the axial direction of the hole), the segment assembly machine can be used to move several segments from bottom to top. Assembled into rings in the same order,...
Claims
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IPC IPC(8): E21D9/00E21D9/087
CPCE21D9/003E21D9/087
Inventor 洪开荣李凤远周振建张合沛万建军褚长海朱训林任颖莹高会中江南宋士仓李峰赵永成刘振辉何蒙蒙
Owner STATE KEY LAB OF SHIELD & TUNNELING TECH