Four-partition shield thrust and oil pressure intelligent balanced distribution method based on coplanar constraint

• Main Authors: ZHANG HONGSHENG, SONG WEIHAO, HE YANXING, XU QING, MAHEMUTI, MUTALIP, ZHANG QINGBO
• Format: Patent
• Language: Chinese; English
• Published: 10.10.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention provides a four-partition shield thrust and oil pressure intelligent balanced distribution method based on coplanar constraint. The thrust/oil pressure balanced distribution is carried out on a four-partition shield tunneling machine propelling system. After relevant parameters are determined, a constraint formula under the condition that thrust/oil pressure vector end points of all the propelling mechanisms are coplanar is established by utilizing a spatial hexahedron geometric model, and the thrust/oil pressure of all the partitions is calculated by combining the equivalent relation that the sum of torques of thrust of the four partitions relative to an original point is equal to a target correction torque and the sum of the thrust of the four partitions is equal to a target total thrust Ft; the distribution process is accurate and efficient, the final distribution result can meet the requirements of the target total thrust and the target correction torque, meanwhile, the balance of the distri