EXTENSION OF ICES - LEASE I TO INCLUDE FLOW AND PLOTTING ROUTINES

AN EXTENSION TO AN EXISTING PROBLEM-ORIENTED LANGUAGE, LEASE, STANDING FOR LIMITING EQUILIBRIUM ANALYSIS OF SLOPES AND EMBANKMENTS, WHICH IS INCLUDED IN MIT'S ICES (INTEGRATED CIVIL ENGINEERING SYSTEM) IS DESCRIBED FOR THE ANALYSIS OF THE STABILITY OF SLOPES. THE EXTENSION INCLUDES THE DEVELOPMENT OF A SYSTEM FOR CALCULATING THE PRESSURES DUE TO STEADY STATE FLOW OF WATER AND PROCEDURES FOR PLOTTING COMPUTED RESULTS. THE METHOD OF SLICES, DEVELOPED BY FELLENIUS AND MODIFIED BY BISHOP, WAS UTILIZED FOR THE ANALYSIS OF STABILITY IN THE COMPUTER PROCEDURE. THE COMPUTER PROCEDURE INCLUDES GRAPHICS CAPABILITY UTILIZING A LINE PLOTTER AND A DRUM PLOTTER, BOTH OF WHICH ARE ATTACHED TO AN IBM 1130 ADP SYSTEM. WHILE AN 1130 COMPUTER IS USED, ANOTHER LARGER SYSTEM, IBM S/360 MODEL 40, IS REQUIRED TO IMPLEMENT ICES AND LEASE. THE PLOTTER THAT IS MENTIONED IN THE REPORT IS CALCOMP'S INCREMENTAL DRUM PLOTTER. /BPR/