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Creep Testing

Submitted by admin on Wed, 05/30/2018 - 19:46

<p><p><strong>References:<br></strong><em>Collin and Cowell (1998)<br>Lazarte et al. (2015)<br>Porterfield, Cotton, and Byrne (1994)<br>Rogbeck et al. (2003)</em></p><p><strong>Method Summary</strong></p><p>This method tests the strength of an individual soil nail by applying a constant specified load to a nail and measuring any movements of the nail.

Historical Society Addition, Virginia

Submitted by admin on Wed, 05/30/2018 - 19:46

<p><p><div><h2>Project Summary/Scope:</h2>The project required temporary shoring, 5 feet clear of new building lines. The construction site was located on North Boulevard in Richmond, Va. Temporary shoring was required due to a small building site and the new foundations being placed 20 feet below existing grade.</p><p>Helical nails were placed on spacing of 5 feet horizontally and 4.5 feet vertically. The nails were hydraulically installed with a 190 John Deere excavator with a 10,000 ft/lb drive head.

Material, Excavation, and Installation Inspection

Submitted by admin on Wed, 05/30/2018 - 19:46

<p><p><strong>References:<br></strong><em>Byrne et al. (1998)<br>Lazarte et al. (2015)<br>Porterfield, Cotton and Byrne (1994)<br>Rogbeck et al. (2003)</em></p><p><strong>Method Summary</strong></p><p>Nail installation logs should be maintained throughout the construction process to verify acceptable materials are used, the location and angle of installed nails adheres to design specifications, and appropriate construction methods are followed.

Screw-in Soil Nailing Cost Information

Submitted by admin on Wed, 05/30/2018 - 19:46

<p><p><h2>Commentary</h2>The costs of screw-in soil nails on a highway project are typically captured in the following contract pay items:<br><ul> <li>Soil nails measured by the square yard (SY) of area treated or by the lineal foot (LF) of nails installed</li></ul>Mobilization, quality control and load testing associated with the installation of screw-in soil nails may be measured and paid for separately.</p><p>Optionally, wall facing may be used in conjunction with screw-in soil nails, these costs should be estimated separ