Mine subsidence and related damage in O'Fallon, Illinois : phase II report /

1 folded leaf of plates in pocket.

Performance of resurfacing of JRCP and CRCP on the Illinois interstate highway system /

"Project IHR-517, Illinois Cooperative Highway Research Program."

Minutes of proceedings of the Institution of Civil Engineers.

Vol. for 1844 issued without title.

Digitization and integration of strong motion accelerograms /

Final report, issued Aug. 1977.

Reports of the late John Smeaton. F. R. S., made on various occasions, in the course of his employment as a civil engineer...

The miscellancous papers of John Smeaton... Comprising his communications to the Royal society, printed in the philosophical transactions, forming a fourth volume to his Reports... London, Printed for Longman, Hurst, Rees, Orme, and Brown, 1814. viii, 203 p. 14 pl. 34 cm.

Annual report FY ... of the Secretary of the Army on civil works activities.

Description based on: 1986, v. 2; title from cover.

Reports of the late John Smeaton, F.R.S., made on various occasions, in the course of his employment as a civil engineer ...

Mode of access: Internet.

Erosion of cohesive soil and channel stabilization /

"October 1968."

CANDE : a modern approach for the structural design and analysis of buried culverts /

Mode of access: Internet.

Residual stress and the yield strength of steel beams,

Sponsored jointly by the Welding Research Council and the Department of the Navy.

Individual and Organizational Factors Influencing Technology Adoption for Construction Safety

Thesis (Master's)--University of Washington, 2016-06

Seismic Evaluation and Retrofit of Concentrically Braced Frames

Thesis (Master's)--University of Washington, 2016-06

Design Expressions and Dynamic Evaluation of CFST Bridges Subjected to Seismic Hazards

Thesis (Ph.D.)--University of Washington, 2016-06

Demographic and Geographic Heterogeneity between Subgroups of Cyclists

Thesis (Master's)--University of Washington, 2016-06

Settling velocity of sediments at high concentrations

New data on the settling velocity of artificial sediments and natural sands at high concentrations are presented. The data are compared with a widely used semiempirical Richardson and Zaki equation (Trans. Inst. Chem. Eng. 32 (1954) 35), which gives an accurate measure of the reduction in velocity as a function of concentration and an experimentally determined empirical power n. Here, a simple method of determining n is presented using standard equations for the clear water settling velocity and the seepage flow within fixed sediment beds. The resulting values for n are compared against values derived from new and existing laboratory data for beach and filter sands. For sands, the appropriate values of n are found to differ significantly from those suggested by Richardson and Zaki for spheres, and are typically larger, corresponding to a greater reduction in settling velocity at high concentrations. For fine and medium sands at concentrations of order 0.4, the hindered settling velocity reduces to about 70% of that expected using values of n derived for spheres. At concentrations of order 0.15, the hindered settling velocity reduces to less than half of the settling velocity in clear water. These reduced settling velocities have important implications for sediment transport modelling close to, and within, sheet flow layers and in the swash zone.