Tunneling in Difficult Ground Engineers like to work with materials having defined characteristics that do not change from one location or application to another. However, in many cases special approaches or arrangements must be made to safely and efficiently drive and stabilize the tunnel as it passes through this “Difficult Ground”. The factors that make…
Geotechnical and Structural Instrumentation for Road Tunnels The primary purpose of geotechnical and structural instrumentation is to monitor the performance of the underground construction process in order to avoid or mitigate problems. Advanced and refined types of instrumentation abound, and electronics coupled with computers have made remote monitoring, even from half a world away, practically…
Design and Construction of Cut and Cover Road Tunnels The increased use of underground space for transportation systems and the increasing complexity and constraints of constructing and maintaining above ground transportation infrastructure has created a need for improved understanding of tunnel engineering and tunnel construction methods. This course presents the construction methodology and excavation support…
Slope Stability This course provides guidance for analyzing the static stability of slopes of earth and rock-fill dams, slopes of other types of embankments, excavated slopes, and natural slopes in soil and soft rock. Methods for analysis of slope stability are described and are illustrated by examples in the appendices. Topics include design considerations, design…
Soil Stabilization for Pavements This course provides guidance for the design and improvement of the structural quality and workability of soils used for base courses, subbase courses, select materials, and subgrades for pavements construction. The training material is from the US Army Corps of Engineers document “Soil Stabilization for Pavements Mobilization Construction”. Criteria and standards…
Corrosion of Soil Reinforcements Engineers and specialty material suppliers have been designing reinforced soil structures for the past 35 years. During the last decade significant improvements have been made to the design methods and in the understanding of factors affecting the durability of the soil reinforcements. This work is becoming even more important now that…