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Survey of Micropile Use in Neighboring Western States

Started: April, 2015 Ended: October, 2015 Project ID #4W5365 Status: Completed

Objective

The objective of the proposed project is to gain knowledge of the state-of-practice in western state departments of transportation regarding the use of micropiles for foundation support and earthen slope repair.

Abstract

Micropiles are small diameter piles that are constructed by drilling and grouting techniques. Micropiles are a foundation alternative that are cost-effective in a variety of conditions encountered in Montana Department of Transportation (MDT) projects. While the technology was first introduced in the US in 1973, MDT’s experience with micropiles is limited. A limited experience base has led to underutilization of a potentially beneficial foundation alternative. MDT is interested in exploring a greater use of micropiles and would like to begin by gathering information from neighboring western states on their use of micropiles in transportation-related projects. The objective of the proposed project is to gain knowledge of the state-of-practice in neighboring western state departments of transportation regarding the use of micropiles for foundation support and earthen slope repair. This objective will be met by developing, conducting and compiling the results of a survey given to neighboring western state departments of transportation on the use of engineered micropiles.  The results of this research will be used to develop plans and methods for the use of micropiles in bridge retrofitting projects, but will also be applicable to other applications.

Contacts

Sponsors & Partners

  • Montana Department of Transportation (MDT) Sponsor

Part of: Infrastructure Maintenance and Materials

Project Tagged In: road construction, piles, micropiles, slope repair

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