METHOD AND STRUCTURAL SUPPORT FOR INCREASING LOAD-CARRYING CAPACITY IN PERMAFROST

摘要

ABSTRACT OF THE DISCLOSUREA stepped pile unit for use in soil having a seasonally frozen regionand a permanently frozen region, comprising at least one pile body having anupper end located in said seasonally frozen region and extending above theground and a lower end extending into said permanently frozen region, elongatedsleeve means encircling at least part of said upper end and extending downwardlyalong said lower end into said permanently frozen region, and means for struc-turally interconnecting the sleeve means and pile body and spacing said sleevemeans radially outwardly of said pile body to increase the effective diameter ofthe pile body down into the permanently frozen region.