Soil and Rock Anchors for Mobile Homes: A State-of-the-art ReportU.S. Department of Commerce, National Bureau of Standards, 1979 - 147 pages |
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Page 23
... DIAMETER , TYPE A 8 " MINIMUM DIAMETER , TYPE AA NOTE : 1 in = 1 in 25.4 mm 1 ft = 0.30 m Figure 4.3 Minimum Dimensions Recommended by Harris for Helix Anchors [ 46 ] density sands . According to Robinson [ 87 ] , 23.
... DIAMETER , TYPE A 8 " MINIMUM DIAMETER , TYPE AA NOTE : 1 in = 1 in 25.4 mm 1 ft = 0.30 m Figure 4.3 Minimum Dimensions Recommended by Harris for Helix Anchors [ 46 ] density sands . According to Robinson [ 87 ] , 23.
Page 24
... sands . According to Robinson [ 87 ] , their use in very hard and dense materials or soils containing gravel and cobbles is very limited . An alternative method for the installation of helix anchors is to par- tially excavate a hole to ...
... sands . According to Robinson [ 87 ] , their use in very hard and dense materials or soils containing gravel and cobbles is very limited . An alternative method for the installation of helix anchors is to par- tially excavate a hole to ...
Page 29
... sands and gravels , stiff clays , glacial tills , and weathered rock . Typically , a 6 - inch ( 0.15 - m ) diameter hole ... sand and Portland cement ANCHOR ROD RIGIDLY ATTACHED CROSS BRACE ( ROUND OR SQUARE 29 6 Miscellaneous Anchors.
... sands and gravels , stiff clays , glacial tills , and weathered rock . Typically , a 6 - inch ( 0.15 - m ) diameter hole ... sand and Portland cement ANCHOR ROD RIGIDLY ATTACHED CROSS BRACE ( ROUND OR SQUARE 29 6 Miscellaneous Anchors.
Page 38
... sand sizes are further subdivided as shown in table 5.1 . The boundaries between one soil type and another have been arbitrarily made and they are based on U.S. stan- dard sieve sizes given in the table . For example , a fine sand would ...
... sand sizes are further subdivided as shown in table 5.1 . The boundaries between one soil type and another have been arbitrarily made and they are based on U.S. stan- dard sieve sizes given in the table . For example , a fine sand would ...
Page 39
... Sand Coarse Sand Medium Sand Size Range Above 3 inches ( 76 mm ) 3 inches to No. 4 sieve ( 4.76 mm ) 3 inches to 3/4 inch ( 19 mm ) 3/4 inch to No. 4 sieve ( 4.76 mm ) No. 4 sieve to No. 200 sieve ( 0.074 mm ) No. 4 sieve to No. 10 ...
... Sand Coarse Sand Medium Sand Size Range Above 3 inches ( 76 mm ) 3 inches to No. 4 sieve ( 4.76 mm ) 3 inches to 3/4 inch ( 19 mm ) 3/4 inch to No. 4 sieve ( 4.76 mm ) No. 4 sieve to No. 200 sieve ( 0.074 mm ) No. 4 sieve to No. 10 ...
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Common terms and phrases
anchor capacity Anchor Installation anchor plate anchor pull-out capacity anchor rod anchor shaft anchor spacing anchoring systems angle arrowhead anchor ASTM blow count capacity of anchors classification cohesive soils concrete correlation cyclic loading D/B ratio dense sands Double Anchor factor of safety field tests geotechnical engineering granular materials granular soils Gravel Ground Anchors grout Hardpan heave helix anchor holding capacity hole inches increases load tests Load versus Uplift Medium dense mobile home anchor NFPA Ontario Hydro percent performed Pull-out Capacity versus pull-out factor Pull-out Load versus Pull-out Resistance relative density Report Research rock anchor saturated Screw Anchor shear strength shown in figure silts soil anchors soil and rock SOIL CLASS Soil Mechanics Soil Test Probe soil types Standard Penetration Test strength of cohesive Test Probe torque tie-down triangular anchor type of anchor U.S. Army versus Uplift Deflection vertical wind