Embankment Dams: James L. Sherard Contributions |
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Page 391
... base to describe their interaction ( i.e. , D15 and d85 ) , and it has a substantial built - in conservatism . Performance of filters in dams meeting this criterion has almost always ... base soil . This criterion is still widely quoted 391.
... base to describe their interaction ( i.e. , D15 and d85 ) , and it has a substantial built - in conservatism . Performance of filters in dams meeting this criterion has almost always ... base soil . This criterion is still widely quoted 391.
Page 409
... ( Soil No. 31 , Table 1 ) 0.01 1 Soil 31C Soil 31B Soil 31A T 0.1 0.5 Particle Size ( mm ) FIG . 7. - Silty Soil No. 31 ( Table 1 ) Mixed with Varying Quantities of Sand to Cre- ate Sandy Silts with Increasing d 85 ... base soil specimen 409.
... ( Soil No. 31 , Table 1 ) 0.01 1 Soil 31C Soil 31B Soil 31A T 0.1 0.5 Particle Size ( mm ) FIG . 7. - Silty Soil No. 31 ( Table 1 ) Mixed with Varying Quantities of Sand to Cre- ate Sandy Silts with Increasing d 85 ... base soil specimen 409.
Page 16
... soil group 4 , D15 0.7 mm . ≤ 4 × dgs ,. ≤ ( 40 - A / 40 - - 15 ) ( 4 × dgs 0.7 mm ) + 0.7 mm . The des values except the one for soil group 3 are based on a mathematical adjustment or regrading of the base soil so that 100 % is ...
... soil group 4 , D15 0.7 mm . ≤ 4 × dgs ,. ≤ ( 40 - A / 40 - - 15 ) ( 4 × dgs 0.7 mm ) + 0.7 mm . The des values except the one for soil group 3 are based on a mathematical adjustment or regrading of the base soil so that 100 % is ...
Contents
A REVIEW OF EXPERIENCE WITH ASPHALTIC CONCRETE IMPERVIOUS | 10 |
EARTHQUAKE CONSIDERATIONS IN EARTH DAM DESIGN | 30 |
PIPING IN EARTH DAMS OF DISPERSIVE CLAY | 55 |
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Common terms and phrases
active faults ASCE asphaltic concrete Atterberg limits base soil base specimen borehole broadly graded caused ceramic tip CFRD clay core clay dams clayey coarse cohesionless compacted compressive concentrated leaks concrete slab conduit construction core material crest settlement damage developed dispersive clay dispersive soils displacement downstream filter earth core earth dams earthquake embankment dams eroded erosion tunnels experience failure fault breaks finer flow Geotechnical Engineering gravel grout hole homogeneous dams horizontal hydraulic fracturing impervious core impervious sections impervious soils initial leak kg/cm² laboratory tests layer leakage channel liquid limit maximum measured membrane meters nondispersive occurred Oklahoma open cracks particles permeability pinhole test piping plasticity pore water pressure probably relatively reservoir filling reservoir water rockfill dam samples sand seepage Sherard sieve silts slope sodium Soil Mechanics spillway stress surface test pit vertical vibrating wire piezometers voids water content width Wister Dam Zone