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I <br /> I <br /> Icost of additional verification test piles and load testing shall be at the <br /> Contractor's expense. At the completion of verification testing, test pile shall be <br /> Iremoved down to the elevation specified by the Engineer. <br /> I. : two in thc area of <br /> I the digester and at least one battered pile under the Operations Building <br /> Shcafwel-1, Perform proof load tests on the first set of production piles installed at <br /> THE PUMP BUILDING each designated area prior to the installation of the <br /> III remaining production piles in that unit. Upon completion of each test, the <br /> Contractor shall submit a report of the test results for review and acceptance by <br /> the Engineer. <br /> I J. Proof test piles to a maximum test load of 1.67 times the micropile Design Load <br /> shown on the Plans. Proof tests shall be made by incrementally loading the <br /> micropile in accordance with the following schedule, to be used for both <br /> Icompression and tension loading: <br /> I Proof Test Loading Schedule <br /> AL = Alignment Load DL = Design Load <br /> LOAD HOLD TIME <br /> I1 AL 1 minute <br /> 2 0.25 DL 1 minute <br /> 3 0.50 DL 1 minute <br /> 4 0.75 DL 1 minute <br /> 5 1.00 DL 1 minute <br /> 1 6 1.33 DL 60 minutes <br /> Creep Test <br /> 1.67 DL <br /> 7 1 minute <br /> I/ (Maximum Test Load) <br /> 8 AL 1 minute <br /> K. Depending on performance, either a 10 minute or 60-minute creep test shall <br /> Ibe performed at the1.33 DL Test Load. Where the pile top movement <br /> between 1 and 10 minutes exceeds 1 mm, the Maximum Test Load shall be <br /> maintained an additional 50 minutes. Movements shall be recorded at 1, 2, <br /> I 3, 5, 6, 10, 20, 30, 50 and 60 minutes. The alignment load shall not exceed 5 <br /> percent of DL. Dial gauges shall be reset to zero after the initial AL is <br /> applied. <br /> IL. The acceptance criteria for micropile proof load tests are: <br /> I 1. The Engineer shall determine the criteria for tolerable movement during <br /> the load test at the top of the micropile. <br /> 2. At the end of the 1.33 DL creep test load increment, test piles shall have <br /> I a creep rate not exceeding 0.05 0.04 inch/log cycle time (1 to 10 minutes) <br /> or 0.1 inch/log cycle time (6 to 60 minutes). The creep rate shall be linear <br /> Addendum 3 to Evergreen Pump Station Modifications(WO#UP3747-3) Page 11/17 <br /> ICITY OF EVERETT • 3200 Cedar Street • Everett, WA 98201 • (425)257-8800 • Fax(425)257-8882 <br />