Lateral Support Systems and Underpinning. Volume I. Design and Construction.

摘要

This volume is a convenient reference on the design and construction of lateral support systems and underpinning which are often required in conjunction with cut-and-cover or soft ground tunneling. The design recommendations and construction methods described herein are a summary of the more detailed information presented in the companion volumes of this study. Included in this volume are discussions of displacements,lateral earth pressure,ground water,passive resistance,stability analysis,bearing capacity,soldier piles,steel sheeting,diaphragm walls,bracing, tiebacks, underpinning,grouting,and freezing. An overview compares the relative costs of the construction methods used in lateral support systems and underpinning. Other reports developed from the study are FHWA-RD-75-129,Volume 2,Design Fundamentals;FHWA-RD-75-130,Volume 3,Construction Methods;and FHWA-RD-75-131,Concepts for Improved Lateral Support Systems.