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Factor Equipment Variable Term Correction Energy Ratio Donut Hammer CE = ER/60 0.5 to 1.00 Safety Hammer Automatic Hammer 65 to 115 mm 0.7 to 1.2) 0.8 to 1.5) Borehole Св 1.0 Diameter 150 mm 1.05 200 mm 1.15 Sampling method Standard sampler Cs 1.0 Non-standard sampler 1.1 to 1.3 Rod Length 3 to 4 m 4 to 6 m CR 0.75 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 ASTMD 4633 Oa 20 Оb 14 Ос 19 Od 13

Factor Equipment Variable Term Correction Energy Ratio Donut Hammer CE = ER/60 0.5 to 1.00 Safety Hammer Automatic Hammer 65 to 115 mm 0.7 to 1.2) 0.8 to 1.5) Borehole Св 1.0 Diameter 150 mm 1.05 200 mm 1.15 Sampling method Standard sampler Cs 1.0 Non-standard sampler 1.1 to 1.3 Rod Length 3 to 4 m 4 to 6 m CR 0.75 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 ASTMD 4633 Oa 20 Оb 14 Ос 19 Od 13

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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**Table Overview for Educational Website** This table provides guidance on correction factors for various equipment variables used in geotechnical engineering. The table is structured into four main factors: Energy Ratio, Borehole Diameter, Sampling Method, and Rod Length. Each factor is associated with specific equipment variables and corresponding correction terms and values. | Factor | Equipment Variable | Term | Correction | |--------------------|-------------------------------------|------|------------| | **Energy Ratio** | Donut Hammer | \(C_E = ER/60\) | 0.5 to 1.0^1 | | | Safety Hammer | | 0.7 to 1.2^1 | | | Automatic Hammer | | 0.8 to 1.5^1 | | **Borehole Diameter** | 65 to 115 mm | \(C_B\) | 1.0 | | | 150 mm | | 1.05 | | | 200 mm | | 1.15 | | **Sampling Method** | Standard sampler | \(C_S\) | 1.0 | | | Non-standard sampler | | 1.1 to 1.3 | | **Rod Length** | 3 to 4 m | \(C_R\) | 0.75 | | | 4 to 6 m | | 0.85 | | | 6 to 10 m | | 0.95 | | | 10 to >30 m | | 1.0 | **Notes:** - The values presented are for guidance only. Actual Energy Ratio (ER) values should be measured per ASTM D 4633. A multiple-choice section is included at the bottom with answer options indicating potential answer choices, labeled as: - a. 20 - b. 14 - c. 19 - d. 13 This table helps in understanding how different equipment and measurement aspects in the field influence the overall correction factor used in project evaluations or calculations.
Transcribed Image Text:**Table Overview for Educational Website** This table provides guidance on correction factors for various equipment variables used in geotechnical engineering. The table is structured into four main factors: Energy Ratio, Borehole Diameter, Sampling Method, and Rod Length. Each factor is associated with specific equipment variables and corresponding correction terms and values. | Factor | Equipment Variable | Term | Correction | |--------------------|-------------------------------------|------|------------| | **Energy Ratio** | Donut Hammer | \(C_E = ER/60\) | 0.5 to 1.0^1 | | | Safety Hammer | | 0.7 to 1.2^1 | | | Automatic Hammer | | 0.8 to 1.5^1 | | **Borehole Diameter** | 65 to 115 mm | \(C_B\) | 1.0 | | | 150 mm | | 1.05 | | | 200 mm | | 1.15 | | **Sampling Method** | Standard sampler | \(C_S\) | 1.0 | | | Non-standard sampler | | 1.1 to 1.3 | | **Rod Length** | 3 to 4 m | \(C_R\) | 0.75 | | | 4 to 6 m | | 0.85 | | | 6 to 10 m | | 0.95 | | | 10 to >30 m | | 1.0 | **Notes:** - The values presented are for guidance only. Actual Energy Ratio (ER) values should be measured per ASTM D 4633. A multiple-choice section is included at the bottom with answer options indicating potential answer choices, labeled as: - a. 20 - b. 14 - c. 19 - d. 13 This table helps in understanding how different equipment and measurement aspects in the field influence the overall correction factor used in project evaluations or calculations.
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