Advanced Panel and Connection System for Reinforced Soil.

摘要

The objective of this effort is to develop a dynamic reinforced soil design method that characterizes shock wave propagation through reinforced soil and the dynamic interaction with modular wall panel sections, and use this method to prepare a preliminary design for an anchored wall panel and soil reinforcing system for an airbase protective shelter. Mathematical and finite element models were used for parametric studies to provide design guidance. Based on the results of extensive numerical analyses, a step-by-step procedure has been proposed for designing a reinforced soil and modular wall panel connection system to withstand the ground shock from a buried explosion. The design procedure consists of six major steps: (1) determine the geogrid volume ratio in the reinforced soil; (2) determine the peak value and time decay rate of the free-field normal stress in the reinforced soil due to a given explosion; (3) conduct limit analyses of the maximum pull-out resistance of the sod reinforcement; (4) conduct limit analyses of the maximum resistance of wall panel shear connectors; (5) determine the maximum wall panel displacement due to the given threat; and (6) design against breaching of a reinforced concrete wall panel. The preliminary design of an anchored wall panel and soil reinforcing system using this proposed procedure is illustrated in this report. Finite element models, Ground shock, Protective structures Structural dynamics.