Shield segment classification method

• Main Authors: HUANG AIJUN, QI MINGSHAN, YANG BO, XU ZHENGLIANG, TANG YAO, WANG CHUNKAI
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; EARTH DRILLING; ELECTRIC DIGITAL DATA PROCESSING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; PHYSICS; SHAFTS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR; TUNNELS

The invention discloses a shield segment classification method. The method comprises the following steps: 1, determining the surrounding rock grade of a tunnel needing to be built by a shield; 2, determining the burial depth of the tunnel; grading the burial depth; 3, calculating the numerical values of the vertical load and the horizontal load borne by each segment of the shield, and taking the numerical values as preconditions for stress calculation; 4, aiming at different calculation working conditions, carrying out stress calculation on each segment according to a result obtained in the step 3 to obtain internal force values of bending moment, shearing force and axial force; 5, classifying the internal force values of the bending moment, the shearing force and the axial force according to the numerical values to form a plurality of types of duct pieces; dividing each type of duct pieces into a plurality of grades, and obtaining the maximum internal force value of each grade; performing reinforcement calcu