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Identify the type of soil that contains wide variety of particle sizes ranging from clay to gravel Marine Soils a. Boston Blue Clay Bedrock Glacial Till

Identify the type of soil that contains wide variety of particle sizes ranging from clay to gravel Marine Soils a. Boston Blue Clay Bedrock Glacial Till

Construction Materials, Methods and Techniques (MindTap Course List)
Construction Materials, Methods and Techniques (MindTap Course List)
4th Edition
ISBN:9781305086272
Author:William P. Spence, Eva Kultermann
Publisher:William P. Spence, Eva Kultermann
Chapter5: Soils
Section: Chapter Questions
Problem 5RQ: How is the moisture content of a soil identified?
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Identify the type of soil that contains wide variety of particle sizes ranging from clay to gravel Marine Soils Boston Blue Clay Ob. Bedrock Glacial Till
Transcribed Image Text:Identify the type of soil that contains wide variety of particle sizes ranging from clay to gravel Marine Soils Boston Blue Clay Ob. Bedrock Glacial Till
A SPT test was performed in a sandy soil layer (y = 115 pcf) at a depth of 16 ft. below the ground surface. The SPT blow counts were recorded as x-y-z, where x, y and z are the last three digits of student ID. The test was conducted using a safety hammer in a 6 in. diameter exploratory boring using a standard sampler with the liner installed. Compute energy-corrected N60, (N1)60 with overburden correction, angle of friction - 6', and relative density - Dr of soil. Assume D50 = 0.2 mm. Factor Equipment Variable Term Correction CE = ER/60 0.5 to 1.00 0.7 to 1.2) 0.8 to 1.5) Donut Hammer Energy Ratio Safety Hammer Automatic Hammer Borehole 65 to 115 mm Св 1.0 150 mm 200 mm Diameter 1.05 1.15 Standard sampler Sampling method Cs 1.0 Non-standard sampler 1.1 to 1.3 Rod Length 3 to 4 m CR 0.75 4 to 6 m 0.85 6 to 10 m 10 to >30 m 0.95 1.0 Values presented are for guidance only. Actual ER values should be measured per ASTM D 4633 Attach File Browse My Computer Browse Content Collection Browse Dropbox
Transcribed Image Text:A SPT test was performed in a sandy soil layer (y = 115 pcf) at a depth of 16 ft. below the ground surface. The SPT blow counts were recorded as x-y-z, where x, y and z are the last three digits of student ID. The test was conducted using a safety hammer in a 6 in. diameter exploratory boring using a standard sampler with the liner installed. Compute energy-corrected N60, (N1)60 with overburden correction, angle of friction - 6', and relative density - Dr of soil. Assume D50 = 0.2 mm. Factor Equipment Variable Term Correction CE = ER/60 0.5 to 1.00 0.7 to 1.2) 0.8 to 1.5) Donut Hammer Energy Ratio Safety Hammer Automatic Hammer Borehole 65 to 115 mm Св 1.0 150 mm 200 mm Diameter 1.05 1.15 Standard sampler Sampling method Cs 1.0 Non-standard sampler 1.1 to 1.3 Rod Length 3 to 4 m CR 0.75 4 to 6 m 0.85 6 to 10 m 10 to >30 m 0.95 1.0 Values presented are for guidance only. Actual ER values should be measured per ASTM D 4633 Attach File Browse My Computer Browse Content Collection Browse Dropbox
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