A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Micropile Foundations for ESSROC Cement Plant Expansion
This paper will present a case study of the ESSROC Cement Plant Expansion Project located in Martinsburg, West Virginia. Over 1,600 total micropiles have been installed through highly karstic limestone for the expansion of the existing plant. The micropiles are designed for 350-tons axial compression, 125-tons axial tension, and 15 tons lateral load capacity. Throughout the course of the work significant voids were encountered that required a grouting program to fill the voids and stabilize the free length of the micropiles. Casing installed was both 117/8 inch x 0.582 inch wall pipe and 113/4 inch x 0.534 wall pipe, with drilling depths up to 180 feet from existing grade. Numerous load tests were performed to verify the capacity of the micropiles in rock and grouted zones of the project. During the construction process adaptations to normal installation of the micropiles were necessary in order to grout highly voided areas. Multiple drill rigs were used throughout the course of the work in order to facilitate the installation of the micropiles and low mobility grouting.
Micropile Foundations for ESSROC Cement Plant Expansion
This paper will present a case study of the ESSROC Cement Plant Expansion Project located in Martinsburg, West Virginia. Over 1,600 total micropiles have been installed through highly karstic limestone for the expansion of the existing plant. The micropiles are designed for 350-tons axial compression, 125-tons axial tension, and 15 tons lateral load capacity. Throughout the course of the work significant voids were encountered that required a grouting program to fill the voids and stabilize the free length of the micropiles. Casing installed was both 117/8 inch x 0.582 inch wall pipe and 113/4 inch x 0.534 wall pipe, with drilling depths up to 180 feet from existing grade. Numerous load tests were performed to verify the capacity of the micropiles in rock and grouted zones of the project. During the construction process adaptations to normal installation of the micropiles were necessary in order to grout highly voided areas. Multiple drill rigs were used throughout the course of the work in order to facilitate the installation of the micropiles and low mobility grouting.
Micropile Foundations for ESSROC Cement Plant Expansion
Martin, Paul D. (author)
International Foundation Congress and Equipment Expo 2009 ; 2009 ; Orlando, Florida, United States
Contemporary Topics in Deep Foundations ; 375-382
2009-03-10
Conference paper
Electronic Resource
English
Micropile Foundations for ESSROC Cement Plant Expansion
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