Soil and Rock Anchors for Mobile Homes: A State-of-the-art ReportU.S. Department of Commerce, National Bureau of Standards, 1979 - 147 pages |
From inside the book
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Page 24
... 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 some depth , say for example 2 feet ( 0.6 m ) . Next , the helix ...
... 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 some depth , say for example 2 feet ( 0.6 m ) . Next , the helix ...
Page 29
... dense sands and gravels , stiff clays , glacial tills , and weathered rock . Typically , a 6 - inch ( 0.15 - m ) diameter hole ( sometimes having a bell at the bottom ) is made , and deformed or plain steel rods up to approximately 1 ...
... dense sands and gravels , stiff clays , glacial tills , and weathered rock . Typically , a 6 - inch ( 0.15 - m ) diameter hole ( sometimes having a bell at the bottom ) is made , and deformed or plain steel rods up to approximately 1 ...
Page 41
... dense Note : 1 ft = 0.3 m Dense Very dense The correlation between blow count and the shear strength of 41.
... dense Note : 1 ft = 0.3 m Dense Very dense The correlation between blow count and the shear strength of 41.
Page 54
... DENSE DENSE DENSE 20 ( UNCORRECTED FOR OVERBURDEN PRESSURE ) 30 40 UNCORRECTED STANDARD PENETRATION TEST BLOW COUNT - BLOWS / FOOT 50 60 Figure 5.4 Angle of Internal Friction ( Shearing Resistance ) versus ( Uncorrected ) SPT Blow Count ...
... DENSE DENSE DENSE 20 ( UNCORRECTED FOR OVERBURDEN PRESSURE ) 30 40 UNCORRECTED STANDARD PENETRATION TEST BLOW COUNT - BLOWS / FOOT 50 60 Figure 5.4 Angle of Internal Friction ( Shearing Resistance ) versus ( Uncorrected ) SPT Blow Count ...
Page 55
... dense sand and D / B ratios equal to or greater than 2 in loose sand . Baker and Kondner [ 16 ] performed model tests on circular steel plates up to 3 inches ( 76 mm ) in diameter and depths of burial up to 21 inches ( 530 mm ) in sands ...
... dense sand and D / B ratios equal to or greater than 2 in loose sand . Baker and Kondner [ 16 ] performed model tests on circular steel plates up to 3 inches ( 76 mm ) in diameter and depths of burial up to 21 inches ( 530 mm ) in sands ...
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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