EARL P. ELLIS
Architects at Lk Rdg Dr, Eagle River, AK
License number
Alaska AELC1745
Issued Date
Jun 22, 1968
Effective Date
Jan 9, 2002
Category
Architects, Engineers and Land Surveyors
Address
Address
15133 W Lake Ridge Dr, Eagle River, AK 99577
Personal information
See more information about EARL P. ELLIS at radaris.comName
Address
Phone
15133 Lake Ridge Dr, Eagle River, AK 99577
17310 Monte Rd, Eagle River, AK 99577
Professional information
Method And System For Relieving Pipeline Stress Due To Frost Action
US Patent:
4629364, Dec 16, 1986
Filed:
Jul 25, 1985
Appl. No.:
6/758891
Inventors:
Francis H. Sayles - Lebanon NH
William T. Black - Irvine CA
Earl P. Ellis - Eagle River AK
William T. Black - Irvine CA
Earl P. Ellis - Eagle River AK
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
F16L 5700, E03B 710
US Classification:
405157
Abstract:
A system and method for relieving frost-heaving stresses in a pipeline for ransporting a product at a temperature less than 32. degree. F. where said pipeline passes through frost-susceptible ground in a trench beneath the ground surface. Bedding supports the pipeline in the trench with its top substantially below the surface of the ground. A pair of relatively thin, elongated soil separators are installed in the trench, one along each side of the pipeline in parallel relation to the longitudinal axis of the pipeline. Each separator has a transverse width extending vertically upward substantially beyond the top of the pipeline and into backfill soil above the pipeline. Padding supports a lower edge of the shear separators adjacent to the pipeline and the separators each have an upper edge located substantially beyond this padding and beyond the top of the pipeline. A mass of the backfill is between upper portions of the shear separators and the shear separators are positioned so as to separate this backfill mass from laterally adjacent soil in response to upward movement of the pipeline due to the formation of a body of ice beneath the pipeline.