... in in the United States that resulted in a myriad of changes. The effect of live load on a buried pipe is a result of the application of the live load at the surface, the assumed distribution of that live load through the soil, and furthermore, the dissipation of the load through the structure itself...

... An extensive instrumentation plan was devised to monitor buried pipe behavior, soil behavior and pipe-soil interaction during backfilling. The emphasis of the instrumentation plan was to monitor these parameters under different installation techniques without impeding construction operations...

... A buried pipe was installed using controlled low strength material (CLSM) as backfill as part of a study of installation procedures for buried pipe. A laboratory evaluation of mix designs was undertaken prior to the field test to determine the suitability of the component materials and establish...

...-dimensional consolidation tests were conducted on two mixes of air-modified CLSM to establish parameters for use in finite element analyses of buried pipe installations. Both trial mixes contained 25 to 30% entrained air to provide flowability. The tests were conducted at ages of 16 hours, 7 days and 28 days...

... are usually intensified by groundwater. Axial strains occur in the manhole wall due to the downdrag of the surrounding soil. Proper design limits axial strains and provides an adequate safety factor against buckling. flexible pipe buried pipe manholes thermoplastic stiffness strain buckling...

... A new test has been developed to study the behavior of buried pipe under hoop compression loading. The apparatus consists of a cylindrical steel vessel lined with an inflatable bladder. A length of pipe is installed at the center of the vessel and the annulus between the pipe and the bladder...

... For over 50 years, studies of soil-pipe interaction have provided methods to predict vertical deflection of buried flexible pipes. Several of these methods are widely used in standards. However, these methods do not account for many of the recognized parameters that affect buried pipe behavior...

... walls depend on the internal shear resistance. This paper discusses internal shearing resistance, the movement required to mobilize it, its measurement, typical values for common trench soils, and how it relates to the load applied to a buried pipe. arching buried pipe shear resistance earth...

..., the literature is briefly reviewed, buckling as a performance limit for buried plastic pipe is discussed, and the selection of appropriate soil and polymer moduli for use in the theory is also considered. Buckling Buried Pipe Design Stability lan D. Moore and Ernest T. Selig USE OF CONTINUUM BUCKLING...

...-drop IR error pipe-to-soil potential voltage waveforms oscilloscope pipelines buried pipe steel soil long-line current stray current potential spike Neil G. Thompson ~and John A. Beavers 1 Measurements of IR-Drop Free Pipe-to-Soil Potentials on Buried Pipelines REFERENCE: Thompson, N. G...