Micropile Design And Construction – Part II &Architects - PDH Online

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Micropile Design and Construction – Part II

Learning Objectives

At the conclusion of this series, the student will learn:

• Definitions;
• Historic background;
• Classifications;
• Applications;
• Construction types;
• Feasibility;
• Advantages and disadvantages;
• Micropile for structural support;
• Micropile for slope stabilization;
• Design approach;
• Structural design;
• Reinforcement;
• Lateral resistance;
• Buckling;
• Geotechincal capacity evaluation;
• Settlement;
• Details;
• Corrosion protection;
• Seismic considerations;
• Soil slope stabilization application;
• Earth retentions;
• Construction Methods;
• Grouting procedures;
• Drilling techniques;
• In-situ reinforcement;
• Load testing; and
• Cost estimate.

Intended Audience

This course is intended for geotechnical engineers, civil engineers, structural engineers, construction professionals and contractors.

Course Introduction

A micropile is a small diameter (typically 5" – 12"), drilled and grouted pile with reinforcement. Micropiles are commonly made up of high strength steel casing and rebar, but can also be installed in some soil conditions using pressure grouted all-thread self-drilling hollow bar systems. Designed to carry compressive or tensile loads, micropiles are high-performance piles that can achieve working loads over 200 tons and extend to depths of 200 feet. The load is mainly accepted by the steel casing and transferred via the grout to the surrounding rock or soil by high values of interfacial friction with minimal end bearing components, as in the case for ground anchors and soil nails. The drilling equipment and installation methods allow micropiles to be drilled through natural and artificial ground condition with minimal vibration, disturbance and noise and at any angle below horizontal.

Course Summary

This course presents the general guidelines on micropile selection, application, benefit, design, construction, cost and testing of micropile foundations.

Once you finish studying the above course content you need to take a quiz to obtain the PDH credits.

DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDHonline.org or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered professional engineer. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.