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Shotcrete Inspection/Testing

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

<p><p><strong>References:<br></strong><em>Byrne et al. (1998)<br>Porterfield, Cotton, and Byrne (1994)<br>Lazarte et al. (2015)<br>Rogbeck et al. (2003)</em></p><p><strong>Method Summary</strong></p><p>Soil nail walls utilizing shotcrete need to complete shotcrete inspection. For permanent walls, shotcrete core testing should be performed. Byrne et al. (1998) Appendix C 2.2.3 describes how to extract core samples from shotcrete walls to be tested for compressive strength.

Surveying

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

<p><p><strong>References:<br></strong><em>Collin and Cowell (1998)<br>Rogbeck et al. (2003)<br>Porterfield, Cotton, and Byrne (1994)<br>Lazarte et al. (2015)<br>Byrne et al. (1998)</em></p><p><strong>Method Summary</strong></p><p>Deflections in the wall can be accurately measured over the length of the wall with surveying equipment. The site should be surveyed on a specified regular schedule in order to monitor and record any wall movements.

Tension Testing

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

<p><p><strong>References:<br></strong><em>Rogbeck et al. (2003)</em></p><p><strong>Method Summary</strong></p><p>This test is performed in a laboratory and functions to determine the tensile strength of the soil nail.

Verification and Proof Testing

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

<p><p><strong>References:<br></strong><em>Byrne et al. (1998)<br>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 specific load to a nail and measuring deflections and strain of the nail.

Visual Inspection

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

<p><p><strong>References:<br></strong><em>Collin and Cowell (1998)<br>Rogbeck et al. (2003)<br>Porterfield, Cotton, and Byrne (1994)<br>Lazarte et al. (2015)<br>Byrne et al.

West Slope Reservoir Wall, Oregon

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

<p><p><div><h2>Project Summary/Scope:</h2>Helical (screw-in) soil nails were used to support a temporary excavation for a year up to 40 feet high for the construction of a new reservoir. The soil nail wall is on the west side of the site and a county road is about 10 feet back from the face of the cut. The wall was approximately 120 feet long and 40 feet high. A triangular pattern was used for the layout of the nails.