Evolution of Precast Box Culvert Joint and Sealing

Strain/Stress Self-Sensing Precast-Box Culvert: Smart Element Design, and Experimental Verification

International Journal of Civil Engineering ◽

10.1007/s40999-020-00569-6 ◽

2021 ◽

Author(s):

Zenagebriel Gebremedhn ◽

Guofu Qiao ◽

Lu Sun ◽

Hang Li ◽

Shi Bai ◽

...

Keyword(s):

Experimental Verification ◽

Strain Stress ◽

Box Culvert

Download Full-text

Earth pressures exerted on an induced trench cast-in-place double-cell rectangular box culvert

Canadian Geotechnical Journal ◽

10.1139/t2012-093 ◽

2012 ◽

Vol 49 (11) ◽

pp. 1267-1284 ◽

Cited By ~ 22

Author(s):

Olajide Samuel Oshati ◽

Arun J. Valsangkar ◽

Allison B. Schriver

Keyword(s):

Earth Pressure ◽

Test Results ◽

Overburden Pressure ◽

Centrifuge Testing ◽

Geotechnical Centrifuge ◽

Drag Forces ◽

Field Instrumentation ◽

Earth Pressures ◽

Box Culvert ◽

Base Contact

Earth pressure data from the field instrumentation of a cast-in-place reinforced rectangular box culvert are presented in this paper. The instrumented culvert is a 2.60 m by 3.60 m double-cell reinforced cast-in-place rectangular box buried under 25.10 m of fill constructed using the induced trench installation (ITI) method. The average earth pressure measured across the roof was 0.42 times the overburden pressure, and an average of 0.52 times the overburden pressure was measured at mid-height of the culvert on the sidewalls. Base contact pressure under the rectangular box culvert was also measured, providing field-based data demonstrating increased base pressure resulting from downward drag forces developed along the sidewalls of the box culvert. An average increase of 25% from the measured vertical earth pressures on the roof plus the culvert dead load (DL) pressure was calculated at the culvert base. A model culvert was also tested in a geotechnical centrifuge to obtain data on earth pressures at the top, sides, and base of the culvert. The data from the centrifuge testing were compared with the prototype structure, and the centrifuge test results agreed closely with the measured field prototype pressures, in spite of the fact that full similitude was not attempted in centrifuge testing.

Download Full-text