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HomeMy WebLinkAbout10-039 Daily Field Reports 105 106 SOIL COMPACTION TEST RESULTS To: Town of Vail Tom Kassmel, P.E. Town Engineer Department of Public Works/Transportation 1309 Elkhorn Drive Vail, Colorado 81657 KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood – (303) 989-1223 Grand Junction – (970) 241-7700 Job No. 10-039 Date: 6/27/11 Report #: 105A Sheet: 1 of 2 Subject: Fill Observation and Testing Roadway Section Backfill Lionshead Transit Center Vail, Colorado Test No. Location Depth or Elevation (feet) Laboratory Field Percent Compaction Pass/Fail Soil Type Maximum Dry Density (pcf) Optimum Moisture Content (%) Dry Density (pcf) Moisture Content (%) 339 Sta. 7+77, 30’ North of south drain pan -3.0± 130.3 7.9 124.3 10.4 95 Fail Curve #1 SAND, Gravelly, Silty 340 Sta. 7+70, 24’ North of south drain pan -3.0± 130.3 7.9 130.5 8.8 100 Pass Curve #1 SAND, Gravelly, Silty 341 Retest of Test #339 -3.0± 130.3 7.9 129.7 10.0 100 Pass Curve #1 SAND, Gravelly, Silty 342 Sta. 7+64, 6’ North of south drain pan -3.0± 130.3 7.9 130.2 130.2 8.7 100 Pass Curve #1 SAND, Gravelly, Silty 343 Sta. 7+63, 28’ North of south drain pan -2.0± 135.9 7.3 134.0 3.2 99 Pass Curve #5 GRAVEL, Sandy 344 Sta. 7+67, 10’ North of south drain pan -2.0± 135.9 7.3 133.5 3.3 98 Pass Curve #5 GRAVEL, Sandy 345 Sta. 7+78, 30’ North of south drain pan -1.0± 135.9 7.3 135.2 3.1 99 Pass Curve #5 GRAVEL, Sandy Weather: Sunny Cloudy Rain Snow Temp: 68°F± Fill Tested Meets Specifications. Specification Compaction & Material: 95% of Standard Proctor AASHTO T 99 (Curve #1) or ASTM D 698 (Curve #5), +2% to -2% of Optimum Moisture Content Fill Tested Does Not Meet Specifications as Indicated by Test Number (s) and Should be Removed or Reworked. Type and Number of Earth Moving Units: 1-Trackhoe Contractor Advised. Full Time Observation. Part Time Observation. Type and Number of Compaction Units: 1-Walk-behind Progress Report: Field engineer arrived on-site, as requested, to observe and test an 18x32 foot area of the eastbound and turning lanes between Sta. 7+60 and Sta. 8+00. The area had deflection, the south end was pumping at a depth of 3 feet, and the existing fill material was unsuitable to bridge the area, so 3 inch minus was imported. Geogrid was placed at a depth of 3 feet, then at every 8 inch lift. Although the moisture content was below the optimum moisture content by more than 2 percent, the soils in this area were well compacted. Test results indicate that moisture and density tests performed at the noted locations have met project specifications. Number of Passes: Varies Thickness of Lift: 8 inches Method of Adding Moisture: Fire hydrant and hose assembly This report presents opinions formed as a result of our observations and/or compaction testing of the fill during this visit. We have relied on the contractor to continue applying the recommended compactive effort and moisture to the fill during times when our observer is not observing operations. Tests are made of the fill only as believed necessary to calibrate our observer’s judgment. Test data are not the sole basis for opinions on whether the fill meets specifications. Don Sneed William H. Koechlein, P.E. Field Observer Reviewed By SOIL COMPACTION TEST RESULTS To: Town of Vail Tom Kassmel, P.E. Town Engineer Department of Public Works/Transportation 1309 Elkhorn Drive Vail, Colorado 81657 KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood – (303) 989-1223 Grand Junction – (970) 241-7700 Job No. 10-039 Date: 6/27/11 Report #: 105B Sheet: 2 of 2 Subject: Fill Observation and Testing Roadway Section Backfill Lionshead Transit Center Vail, Colorado Test No. Location Depth or Elevation (feet) Laboratory Field Percent Compaction Pass/Fail Soil Type Maximum Dry Density (pcf) Optimum Moisture Content (%) Dry Density (pcf) Moisture Content (%) 346 Sta. 7+96, 19’ North of south drain pan -1.0± 135.9 7.3 137.5 4.6 100 Pass Curve #5 GRAVEL, Sandy 347 Sta. 7+94, 6’ North of south drain pan -1.0± 135.9 7.3 135.7 3.3 100 Pass Curve #5 GRAVEL, Sandy Weather: Sunny Cloudy Rain Snow Temp: 68°F± Fill Tested Meets Specifications. Specification Compaction & Material: 95% of Standard Proctor AASHTO T 99 (Curve #1) or ASTM D 698 (Curve #5), +2% to -2% of Optimum Moisture Content Fill Tested Does Not Meet Specifications as Indicated by Test Number (s) and Should be Removed or Reworked. Type and Number of Earth Moving Units: 1-Trackhoe Contractor Advised. Full Time Observation. Part Time Observation. Type and Number of Compaction Units: 1-Walk-behind Progress Report: See Sheet 1 of 2. Number of Passes: Varies Thickness of Lift: 8 inches Method of Adding Moisture: Fire hydrant and hose assembly This report presents opinions formed as a result of our observations and/or compaction testing of the fill during this visit. We have relied on the contractor to continue applying the recommended compactive effort and moisture to the fill during times when our observer is not observing operations. Tests are made of the fill only as believed necessary to calibrate our observer’s judgment. Test data are not the sole basis for opinions on whether the fill meets specifications. Don Sneed William H. Koechlein, P.E. Field Observer Reviewed By REPORT OF CONSTRUCTION ACTIVITIES KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood – (303) 989-1223 Grand Junction – (970) 241-7700 To: Town of Vail Tom Kassmel, P.E. Town Engineer Department of Public Works/Transportation 1309 Elkhorn Drive Vail, Colorado 81657 Job No. 10-039 Date: 7/11/11 Report #: 106A Sheet: 1 of 2 Project: Lionshead Transit Center, Vail, Colorado Weather: Sunny Cloudy Rain Snow Temp: 71°F± Construction Activities/Observations: Field engineer arrived on site, as requested, to observe drilled holes for the column pedestal addition on Gridlines EA and E-18.2 of the second level parking area. Specifications required a minimum of 8 inch depths for the holes. There were 14 horizontal holes in a vertical line for the exterior (outside parking lot); 7 horizontal holes in one vertical line for the interior of the column (inside parking area); for the bottom of the column, there were 2 holes in the exterior and exterior of the slab and 2 holes in the stem wall (6 holes total); for the top of the column, there were 2 holes drilled into the upper deck. The holes were 8 inches to 11.25 inches in depth, except for 4 holes which were ? inch to ¼ inch short due to reinforcing steel in the existing walls. Based on our observations, it is our opinion that the drilled holes for the column pedestal addition on Gridlines EA and E-18.2 of the second level parking area have been properly prepared and have met project specifications. Don Sneed William H. Koechlein, P.E. Field Observer Reviewed By SOIL COMPACTION TEST RESULTS To: Town of Vail Tom Kassmel, P.E. Town Engineer Department of Public Works/Transportation 1309 Elkhorn Drive Vail, Colorado 81657 KOECHLEIN CONSULTING ENGINEERS, INC. Geotechnical and Materials Engineers Lakewood – (303) 989-1223 Grand Junction – (970) 241-7700 Job No. 10-039 Date: 7/11/11 Report #: 106B Sheet: 2 of 2 Subject: Fill Observation and Testing Walkway Lionshead Transit Center Vail, Colorado Test No. Location Depth or Elevation (feet) Laboratory Field Percent Compaction Pass/Fail Soil Type Maximum Dry Density (pcf) Optimum Moisture Content (%) Dry Density (pcf) Moisture Content (%) 348 9’ East, 6’ South from southeast corner of ECO building north of parking structure Grade± 135.9 7.3 133.3 3.6 98 Pass Curve #5 GRAVEL, Sandy 349 9’ East, 9’ South from southeast corner of ECO building north of parking structure Grade± 135.9 7.3 132.3 3.6 97 Pass Curve #5 GRAVEL, Sandy 350 12’ East, 2’ South from southeast corner of ECO building north of parking structure Grade± 135.9 7.3 131.5 4.2 97 Pass Curve #5 GRAVEL, Sandy Weather: Sunny Cloudy Rain Snow Temp: 78°F± Fill Tested Meets Specifications. Specification Compaction & Material: 95% of Standard Proctor ASTM D 698, +2% to -2% of Optimum Moisture Content Fill Tested Does Not Meet Specifications as Indicated by Test Number (s) and Should be Removed or Reworked. Type and Number of Earth Moving Units: Unknown Contractor Advised. Full Time Observation. Part Time Observation. Type and Number of Compaction Units: Unknown Progress Report: Field engineer arrived on-site, as requested, to observe and test the walkway subgrade from the southeast corner of the building north of the parking structure to the parking structure. Field engineer found the walkway was already prepared with wire mesh and a snowmelt system. Testing was performed by placing gauge between the snowmelt system tubes and on top of wire mesh. Compaction percentage passed specifications, and low moisture was approved by T. Mitchell. Test results indicate that density tests performed at the noted locations have met project specifications. Number of Passes: Unknown Thickness of Lift: Unknown Method of Adding Moisture: Unknown This report presents opinions formed as a result of our observations and/or compaction testing of the fill during this visit. We have relied on the contractor to continue applying the recommended compactive effort and moisture to the fill during times when our observer is not observing operations. Tests are made of the fill only as believed necessary to calibrate our observer’s judgment. Test data are not the sole basis for opinions on whether the fill meets specifications. Richard L. Hartford William H. Koechlein, P.E. Field Observer Reviewed By