A design proposal for timber pile supported sewers

Harlan G. Kelly

doi:10.1139/l80-076

A design proposal for timber pile supported sewers

Canadian Journal of Civil Engineering ◽

10.1139/l80-076 ◽

1980 ◽

Vol 7 (4) ◽

pp. 629-641

Author(s):

Harlan G. Kelly

Keyword(s):

Field Testing ◽

Calculation Procedure ◽

Rational Basis ◽

Sewer Pipe ◽

Vertical Loading ◽

Pile Cap ◽

Pile Column ◽

Column Design ◽

Low Strength ◽

Design Proposal

The design difficulties for rigid sewer pipe and timber pile supports in low-strength soils are reviewed. A proposal is developed to serve as a rational basis of design for assessing vertical and horizontal loads, pile and pile cap selection, flexural design and strength of the pipe to resist vertical loading, pile fixity, and pile column design. Examples of the calculation procedure are given and conclusions by others based on field testing of flexurally reinforced pipe are presented.

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Terrain Evaluation of the Dempster Highway across the Eagle Plain and along the Richardson Mountains, Yukon Territory

Canadian Geotechnical Journal ◽

10.1139/t75-035 ◽

1975 ◽

Vol 12 (3) ◽

pp. 296-319

Author(s):

Neil W. Richardson ◽

E. Karl Sauer

Keyword(s):

Physical Environment ◽

Field Testing ◽

Yukon Territory ◽

Point Of View ◽

The Arctic ◽

Terrain Classification ◽

Rational Basis ◽

Patterned Ground ◽

Subsurface Sediments ◽

Richardson Mountains

A detailed terrain classification was carried out as part of a study on the Dempster Highway from Mile 166 to Mile 290.5, the Yukon–Northwest Territories Border. The objective was to establish a rational basis for field testing and subsurface exploration programs in the future and the evaluation of the potential effects upon the physical environment of the construction of highways and other transportation facilities in the Arctic, on terrain composed of sedimentary rocks which have not been glaciated. Terrain units were established on the basis of geology, vegetation, topography, and patterned ground. The subsurface sediments were mapped mainly as outcrops of weathered shale and sandstone. The sandstone was found to be the most stable foundation and borrow material. The shale was found to be mainly clay with high ice contents near the surface, and was observed to be very unstable when thawed. A number of plant communities, which differed significantly from a geotechnical point of view, were identified.

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Stainless Steel SHS and RHS Beam‐column Design Proposal

ce/papers ◽

10.1002/cepa.1458 ◽

2021 ◽

Vol 4 (2-4) ◽

pp. 1575-1583

Author(s):

Bretislav Zidlicky ◽

Michal Jandera

Keyword(s):

Stainless Steel ◽

Column Design ◽

Design Proposal

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Investigation and Analysis of Structural Cracking in Transit Car Trucks

10.1115/imece2001/rtd-25700 ◽

2001 ◽

Author(s):

John A. Janiszewski ◽

Steven M. Chrismer ◽

John B. Pearson

Keyword(s):

Residual Stresses ◽

Preventive Measures ◽

Fatigue Cracks ◽

Field Testing ◽

Stress Relief ◽

Engineering Analysis ◽

Laboratory Examination ◽

Vertical Loading ◽

Area Of Concern ◽

In Transit

Abstract This paper describes an investigation into the causes of cracking of transit car truck side frames on the PATCO system. The investigation included inspection of the PATCO fleet, laboratory examination of a sample from a failed truck, field-testing of an instrumented truck, measurement of residual stresses in the truck, and engineering analysis of the resulting data. It was concluded that the observed cracks were slowly propagating due to fatigue from low-level stresses induced by lateral and vertical loading from routine curving forces and other vehicle-track interactions. The side frames with fatigue cracks can be repaired by welding without the need for postweld stress relief and the lifetime of those that do not have cracks at present can be extended by preventive measures. The combination of preventive measures and repairs should enable the trucks to serve for the balance of the PATCO fleet lifetime without the need to purchase replacement trucks. Continued surveillance of the trucks in the area of concern will be necessary.

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