Three-zone-based shield propulsion system control method and system thereof
A technology of propulsion system and control method, which is applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of large influence of human factors in force control of propulsion system.
Active Publication Date: 2020-10-23
SHANGHAI TUNNEL ENG CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the defects of the prior art, provide a shield tunneling propulsion system control method and system based on three partitions, and solve the problem that the control of the propulsion system force in the shield tunneling process is greatly influenced by human factors. Based on the theoretical basis of mathematics and mechanics, the shield propulsion system is controlled in partitions, and the precise control of the force of the shield propulsion system is realized
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[0089] Establish the XOY coordinate system, set the total thrust T required for shield tunneling, take T=123492kN, and the moment M of the total thrust T in the X-axis direction x =54980kN.m and the moment M in the Y-axis direction y =-2450kN.m as an example, determine the moment point of the total thrust T as figure 2 shown;
[0090] Divide N jacks along the Y axis, taking 34 jacks as an example, divide and form A area and B area symmetrically arranged along the positive semi-axis of the Y axis, both A area and B area include 3 jacks, and C area 28 jacks are included in the coverage area, and the center line of area C coincides with the negative half axis of the Y axis;
[0091] Rotate the XOY coordinate system around the origin O to form the X'OY' coordinate system, and It is an integer multiple of 360 / N, so that 0≤β≤360 / N, which can prevent the resultant force in a certain area from being too large and exceeding the maximum thrust of the jack. The demarcation line c...
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The invention relates to a three-zone-based shield propulsion system control method and a system thereof. The three-zone-based shield propulsion system control method includes the following steps of setting total thrust T required by shield propulsion, moment Mx of the total thrust T in the X-axis direction and moment My in the Y-axis direction; dividing an XOY coordinate system along a line passing through the original point O to form a zone A, a zone B and a zone C, and recording the included angle beta between the total thrust T and the center line of the zone C; and calculating the total thrust of each zone according to the total thrust T, the moment Mx, the moment My and the included angle beta by using a formula of a resultant force and a resultant moment, and calculating the thrustof each jack in each zone correspondingly. According to the three-zone-based shield propulsion system control method and the system thereof, the problem that the influence of human factors in shield propulsion control is great is effectively solved, the shield propulsion system is subjected to zone control based on the theoretical basis of mathematics and mechanics, the intelligent control over shield propulsion is realized, the influence of human factors is reduced, and the safety and stability of construction are improved.
Description
technical field [0001] The invention relates to the field of shield tunneling construction, in particular to a three-partition-based shield tunneling propulsion system control method and system thereof. Background technique [0002] Usually, the partitioning method of the shield tunneling system is to divide the small-diameter shield tunnel into four zones, and the super-large-diameter shield tunneling system is divided into six zones. By controlling the opening of the oil pressure valve of the jack, the purpose of tunneling and deviation correction is achieved. [0003] However, this method relies too much on the manual operation experience of the shield driver, the control accuracy is not high, and human factors are greatly affected. In reality, engineering accidents often occur due to the shield driver's unskilled operation. The development in the direction of chemical research and development requires precise control of the force of the propulsion system. Contents of ...
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IPC IPC(8): E21D9/06
CPCE21D9/0621
Inventor 朱叶艇张闵庆龚卫闵锐秦元翟一欣黄健黄圣袁向华吴文斐范杰
Owner SHANGHAI TUNNEL ENG CO LTD