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HomeMy WebLinkAboutLETTER - PILE INSTALLATION MONITORINGHutting e Engineers of Florida Inc. I Established 1967 Your Project is Our Commitment November 20, 2017 v v' Mr. Rich Barnes Bodax Foundations; Inc. 1101 NW 55'1 Street � Ft. Lauderdale, Florida 33309 0 'c Subject: Report of Augercast Pile Installation Monitoring LU Proposed Residence o Lot 7, 3800 Anacostia Place Fort Pierce, Florida V Ql Q. 2 Dear Mr. Barnes: 13 ry weptune vrrve Boynton Beach, Florida 33426 561-736-4900 Toll Free: 877-NUTTING (688-8464) Fax:561-737-9975 Broward 954-941-8700 St. Lucie 772-408-1050 Miami -Dade 305-557-3083 www.nuttingei)gineers.com Nutting Engineers of Florida, Inc. (NE) has completed observation of augercast piling operations for the proposed residence at the subject site. Bodax Foundations, Inc. installed cast -in -place augured piles for support of the proposed construction. v 6 Bodax Foundations, Inc. installed a total of 63, 14-inch diameter augercast piles for the project. •c The piles were installed from November 9, 2017 to;November 10, 2017. Please refer to the pile ai plan for the numbering provided to our office. The pile size and depth recommendations were 'a, based upon our review of the Report of Geotechnical Exploration prepared by GFA International rL dated January 22.2016. The pile installation characteristics of each pile are presented in the attached Pile Installation Data. Identification of each pile location followed by the pile number is shown on the Pile Location Plans attached. Each pile record in the attached summary tables shows the following c information: 0 u ■ RECORD NUMBER IN CHRONOLOGICAL ORDER ■ THE PILE NUMBER '(AS FOUND ON ATTACHED PLANS) 0 ■ THE DIAMETER OF THE PILE -0 ■ THE LENGTH OF PILE FROM GROUND SURFACE TO TIP ■ THE THEORETICAL VOLUME OF GROUT FOR THE PILE ■ THE NUMBER OF PUMP STROKES FOR THE PILE c ■ THE ACTUAL VOLUME OF GROUT FOR THE PILE v ■ THE GROUT FACTOR o ■ THE DATE OF INSTALLATION 0 THE REINFORCEMENT TYPES OFFICES Palm Beath Miami -Dade ` lAId1�1VERSARY•TT 1.964 S t . Lucie ■ AND GENERAL COMMENTS AS NEEDED The drilling. operations were monitored in :the field by our field engineer and inspector in order to approximately determine the type of material being penetrated. This identification was done based on the angering time, the materials received during the drilling operations and the, relative hardness of the soils/rocks as indicated by the vibration or "chattering" .of the hydraulic lines. The augercast piles were installed to depths of thirty'to thirty-two feet below the existing ground surface of approximately. The piles were designed for an allowable compressive capacity of 40 tons as required by the structural specifications and the recommendations made by our office. Generally,. during the installation of the piles, easy drilling was observed from the ground level to approximately twenty-four feet. Below this depth range hard drilling was encountered to the final tip depth. All piles received steel reinforcement consisting of full length cage with 6, #6 reinforcing bars with 43 ties spaced 6-inch on center in the top twenty-five feet of the cage and 12-inches on center the remaining length of the pile as stated in the structural documents. Upon completion of this inspection process,, and review of the recorded data, it is our opinion that the. augercast piles installed for the residence attained the required design compressive capacity of 40 tons. The pilesthat were presently installed were constructed in substantial compliance with the plans and specifications. We note that it was monitored and ensured that the piles began installation at the survey locations provided in the field. If during drilling operations it was discovered that gross deviations from .original locations have occurred', the deviation was attempted to be rectified. Nutting Engineers is not responsible for minor deviations which have occurred during drilling operations, along with incorrect surveyed pile locations during piling installation. We also note that some deviations may be due to the augerdrill shifting when attempting to drill through. the hard rock or other encountered debris conditions. This condition is beyond the control of the site inspector and undersigned engineer. Our client for this project was: Mr. Rich Barnes Bodax Foundations, Inc. 1101 NW 551h Street Ft. Lauderdale, Florida 33309 Hutting a Engineers of Florida Inc. I Established 1967 2 .1, F ONIVERSARp % 19$7 2017,' `k The contents of this report are for the exclusive use of the client, the client's design & construction team and governmental authorities for this specific project exclusively. Information conveyed in this report shall not be used or relied upon by other parties or for other projects without the expressed written consent of NE. We appreciate. this opportunity to work with you on this project and look forward to completing this and future projects with you. Should you have any questions or if we can be of any further assistance, please contact us'at your convenience. � Respectfully Submitted;, NUTTING ENGINEERS OF FLORIDA, INC. Richard C. Wohlfarth, P.E. Director of Engineering Attachments: Pile Location Plans Pile Installation Data LTRBODAXLOT 7-3806 ANACOSTIA PL FT -PIERCE ACP CEG Nutting a Engineers of Florida Inc. 1 Established 1967 9 h ^t3J AtJNIMSARy r i007 2017, ��•tet4J1'a ti,�