COEFFICIENT OF HORIZONTAL SUBGRADE REACTION SETTING METHOD ON REAR SIDE USED FOR EXCAVATION WORK SIMULATION DEVICE AND MINIMUM EARTH PRESSURE SETTING METHOD

摘要

PROBLEM TO BE SOLVED: To improve the precision of the simulation of earth retaining work when an underground structure is constructed and to carry out the work with high safety. SOLUTION: For the calculation of the excavation earth retaining work, assuming that there are subgrade springs in both of the excavation side and the rear side, a calculation formula is derived for obtaining a coefficient of horizontal subgrade reaction on the rear side and the minimum earth pressure used wherein, anybody can freely calculate the coefficient of horizontal subgrade reaction on the rear side and the minimum earth pressure from the calculation formula, the calculated result is used to promote the reliability of simulation executed by an excavation work simulation device.