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HomeMy WebLinkAboutAttachmentBID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT "A" SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECTTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 1 - GENERAL 1.01 SCOPE OF WORK A. The work covered by these specifications consists of furnishing all tabor, material and equipment for installing augered pressure grouted (APG) piles (hereafter referred to as "piles") of the dimensions shown on the Drawings at locations as needed. 1.02 EXPERIENCE A. The CONTRACTOR, as required by the Contract Administrator, shall furnish records of his past successful experience in performing this type of work and shall submit for approval, records showing prior experience with successful installation of augered pressure grouted piles. The CONTRACTOR shall have a superintendent and operators experienced in this type of work in charge. The CONTRACTOR shall not replace the superintendent without written consent by the Contract Administrator. B. The CONTRACTOR shall also provide a description of the materials to be used and the proposed method of operations, and furnish records and data to demonstrate that the finished piles will meet, in all respects, the quality and properties required by these Specifications. 1.03 QUALITY CONTROL A. General: The CONTRACTOR shall provide and maintain a quality control system in accordance with the following requirements: B. Grout Mixture 1. The CONTRACTOR shall provide mix designs to be used consistently without modification, unless otherwise directed by the Contract Administrator. The final design mix must be submitted to the Contract Administrator prior to the installation of piles. GRMC-PB12-2005 APIMM/0301!PB03.2006 3/1/06 Berth 2&3 Additional Bollards 02465-1 Augered Pressure Grouted Piles BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT"A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECTTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 1 — GENERAL (Continued) 1.03 QUALITY CONTROL (Continued) B. Grout Mixture (Continued) 2. The CONTRACTOR shall submit to the Contract Administrator, a certification that quantities and materials used are in accordance with the requirements of the mix design and this Specification. Certification shall include, but not be limited to, plant batch ticket for each load that includes measurements of all quantities of materials batched and daily test reports of materials used. The material shall be tested by an independent testing laboratory. C. Tests: During each 8-hour shift, representative samples of the concrete mortar shall be obtained and tested. At least six standard mortar cubes will be made and tested for each 50 cubic yards of concrete placed in accordance with ASTM C109-80, with the exception that the grout should be restrained from expansion by a top plate. One specimen will be tested at the age of 3 days, followed by one specimen at the age of 7 days, one specimen at the age of 14 days, two specimens at the age of 28 days, and one specimen at the age of 56 days if necessary. Compressive strength tests shall be made by the Testing Laboratory. The test results will be submitted to the Contract Administrator within 7 days of completion of the testing. D. Records 1. The CONTRACTOR shall provide daily records in a form suitable to the Contract Administrator that shall contain, but not be limited to, the following information regarding piles installed: a. Number of piles installed (location shown on Drawings). b. Batch plant test results and certifications. c. Results of calibration of the pump. d. Any other pertinent information. GRMC-PB12-2005 AP/MMI030 iIPB03-2006 3/1/06 Berth 283 Additional Bollards 02465-2 Augered Pressure Grouted Piles • BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT "A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECTTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 1— GENERAL (Continued) 1.03 QUALITY CONTROL (Continued) E. Submittals 1. The CONTRACTOR shall submit to the Contract Administrator the following items for review and approval: a. Names of Project Manager, Superintendent, and Foreman who will be in charge of this project. b. A description of equipment and method of the installation of piles. c. Grout mix designs. d. Calibration of gauge and pump. e. Certificates of grout mix issued by the batch plant. f. Daily records of pile installation as described in Section 1.4.D, Records". A description of equipment and method for the installation of battered piles, if applicable. 1.04 JOB CONDITIONS A. Site Information 1. Subsurface conditions at the site have been investigated by engineering borings. Log borings are shown on the Drawings. The data provided concerning subsurface conditions are not intended as complete representations or warranties of the continuity of such conditions. It is expressly understood that the Owner will not be responsible for interpretation or conclusions drawn therefrom by the CONTRACTOR. The data are made available for the convenience of the CONTRACTOR. GRMC-PB12-2005 APJMM10301/PB03.2006 3/1/06 Berth 283 Additional Bollards 02465-3 Augered Pressure Grouted Piles • BID NO. H-Z-O5-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT "A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON. SHELTERED MARKET) SECTTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 1 — GENERAL (Continued) 1.04 JOB CONDITIONS (Continued) A. Site Information (Continued) 2. Additional test borings and other exploratory operations may be made by the CONTRACTOR at no additional cost to the Owner, provided such operations are acceptable to the Contract Administrator. B. Protection of Existing Structures 1. The CONTRACTOR shall protect structures, underground utilities, existing foundations and other construction from damage by pile installation operation at no additional cost to the Owner. Protection methods shall be submitted to the Contract Administrator for approval prior to construction. C. Layout of Piles 1. The CONTRACTOR shall locate piles as indicated on the Drawings. The CONTRACTOR shall be solely responsible for locating piles within tolerances specified at the plan locations shown on the Drawings. 1.05 APPLICABLE PUBLICATIONS A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only. The revision in effect at the time of contract shall be applicable standard for the contract. B. American Society for Testing and Materials (AS.TM) Publications: A615 Specifications for Deformed Billet -Steel Bars for Concrete Reinforcement C31 Making and Curing Concrete Test Specimens in the Field C33 Concrete Aggregates C95 Specifications for Ready Mixed Concrete GRMC-PB12-2005 AP/MM/0301 /PB03-2006 3/1 /06 Berth 2&3 Additional Bollards 024-65-4 Augered Pressure Grouted Piles BID NO. H-2-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT "A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET1 SECTTION 02465 - AUGERD PRESSURE -GROUTED PILES PART 1 - GENERAL (Continued) 1.05 APPLICABLE PUBLICATIONS (Continued) B. American Society for Testing and Materials (ASTM) Publications: (Continued) C109 Compressive Strength of Hydraulic Cement Mortar C150 Fly Ash and Raw of Calcined Natural Pozzolan for Use as a Mineral Admixture in Portland Cement Concrete C937 Grout Fluidifier for Preplaced-Aggregate Concrete C939 Flow of Grout for Preplaced-Aggregate Concrete C942 Compressive strength of Grouts and Preplaced-Aggregate in the Laboratory C. American Concrete Institute (ACI) AC304 Recommended Practice for Measuring, Mixing, Transporting, and Placing Concrete ACI-305R Hot Weather Concrete 1.06 FOUNDATION DESIGN A. All shafts shall be installed as shown on the Drawings, Adjustment to the final tip elevation may be made at the discretion of the Geotechnical Engineer Inspector with approval of the Contract Administrator. 8. Per applicable codes, the maximum allowable compressive stresses on the pile section shall be 25 percent of the 28 day grout strength. Steel reinforcement shall be provided for all compression and tension piles in accordance with the Contract Drawings. Reinforcing steel shall be fitted with spacers to assure proper centering within the pile shaft, and to maintain specified side clearances. GRMC-P812-2005 AP/MM/0301/PB03-2006 3)1/06 Berth 2&3 Additional Bollards 02465-5 Augered Pressure Grouted Plies BID NO. H-Z-05-376-B9 ADDENDUM NO. I March 2, 2006 ATTACHMENT "A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECTTION 02465 - AUGERD PRESSURE -GROUTED PILES PART 2 - MATERIALS AND EQUIPMENT 2.01 MATERIALS A. Grout used to form the pile shall consist of a mixture of Portland cement, fine aggregate, flash and water so proportioned and mixed as to produce a grout capable of maintaining the solids in suspension without appreciable water gain and which may be pumped without difficulty and fill any voids in the foundation material. Mineral filler and fluidifier conforming to these Specifications may be used at the option of the CONTRACTOR. These materials shall be so proportioned as to provide a minimum hardened grout strength in the piles of 7,000 psi at 28 days when tested in accordance with the provisions of ASTM C109 with flow in the range of 12-25 seconds, at the time of placement. At feast sixty percent (60 percent) of the strength shall be attained at the end of seven (7) days. Should this requirement not be met, the Contract Administrator may require replacement pile(s). The CONTRACTOR shall install all replacement piles at no additional cost to the Owner. B. Portland cement shall conform to ASTM C150, Type II. C. Mineral filler, if used, shall be slag, flash or other approved pozzolanic material conforming to ASTM C618. The use of mineral filler shall be at the CONTRACTOR's option. D. if the CONTRACTOR elects to use a grout fluidifier, the fluidifier shall meet with requirements of ASTM C937. E. Water shall be fresh, clean, and free from injurious amounts of sewage, oil, acid, alkali, salts or organic matter. Water should not be added at the job site. F Other admixtures shall not be used. G. Fine aggregate shall meet the requirements of ASTM C33, except that grading may be modified if compressive strength requirements are satisfied. H. The grout shall be mixed in accordance with the applicable requirements of ASTM C94. Reinforcement shall conform to requirements of ASTM A615, Grade 60 Steel. GRMC-PBI2-2005 AP/MM/03091PB03-2006 3/1/06 Berth 2&3 Additional Bollards 02465-6 Augered Pressure Grouted Piles • BID NO. H-Z-05-376-81 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT "A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECTTION 02465 -- AUGERD PRESSURE -GROUTED PILES PART 2 - MATERIALS AND EQUIPMENT (Continued) 2.02 EQUIPMENT REQUIREMENTS A The auger ftighting shall be continuous from the auger head. to the top of auger with no gaps or other breaks. 1 It is the CONTRACTOR's responsibility to verify that the sections of auger are sufficient in diameter and length so as to ensure that the proper hole size and the design length from the top of ground to the tip of pile will be constructed. CONTRACTOR shall provide auger length capability to the minimum specified tip elevation plus an additional minimum 10 feet in length. 2. The auger leads shall be equipped with a stabilizing device so as to prevent their rotation. 3. The CONTRACTOR shall provide clear scales on the auger lead for rapid determination of augering depth by the Geotechnical Engineer Inspector. 4. A bottom guide shall be attached to the leads for the prevention of auger "whipping". On auger lengths exceeding 40 feet in length, a middle guide should be attached to the leads. 5. The minimum inside diameter (1.D.) of the hollow shaft of the auger flight shall be 2-1/2 inches. The grout injection equipment shall be provided with a grout pressure gauge placed in clear view of the operator and the Inspector. 6. The auger hoisting equipment shall be capable of withdrawing the auger smoothly and at a constant rate. GRMC-PB12-2005 APIMMI03011PB03-2006 311/06 Berth 28,3 Additional Bollards 02465-7 Augered Pressure Grouted Piles BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2. 2006 ATTACHMENT "A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL RO14DWAY AND MISCELLANEOUS CONSTRUCTION !NON -SHELTERED MARKET) SECT11ON 02465 — AUGERD PRESSURE -GROUTED PILES PART 2 - MATERIALS AND EQUIPMENT (Continued) 2.02 EQUIPMENT REQUIREMENTS (Continued) 7. The grout pump shall be a positive displacement pump of approved design capable of generating 350 psi. The pump pressure during grout injection should be a minimum of 250 psi. Pressure gauge should be in good condition and should be installed on the hose within 50 feet hose length from the pump. The pressure on the gauge should read between 150 psi and 200 psi during grout injection. The grout pump shall be calibrated before the first pile is installed and at any time the Inspector requests calibration. A screen to remove oil or other rust inhibitors shall be removed from the mixing drums, stirring mechanisms, and other portions of the equipment in contact with the grout before the mixers are used. • PART 3 - CONSTRUCTION • 3.01 SITE CONDITIONS A. The CONTRACTOR shall examine the areas and conditions under which piles are to be installed. The CONTRACTOR shall remedy any conditions detrimental to the proper and timely completion of the work. The work shall not proceed until unsatisfactory conditions have been corrected in a manner acceptable to the Inspector. 3.02 PILES A. Location 1. Piles shall be located as shown on the Construction Drawings or as otherwise directed by the Owner. Centers of vertical piles shall be located at an accuracy of plus or minus 4 inches for groups of 6 piles or more and 3 inches for groups of less than 6 piles at the cut-off elevation. Centers of battered piles (when appropriate) shall be located at an accuracy of plus or minus 6 inches at the cut-off elevation. GRMC-PB12-2005 APIMMI03011PB03-2006 311106 Berth 2&3 Additional Bollards 02465-B Augered Pressure Grouted Piles BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT"A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECTTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 3 — CONSTRUCTION (Continued) 3.02 PILES (Continued) A. Location (Continued) 2. Some piles may be located adjacent to existing pile supported structures. The CONTRACTOR shall use extreme caution when augering to avoid damage of adjacent structures, using protection methods if necessary as explained in Article 1.04.B. B. Tip Elevation 1. Piles shall be installed to a minimum tip elevation as shown on the Contract Documents. Adjustments to final tip elevation may be made at the discretion of the Geotechnica! Engineer Inspector. C. Cut-off Elevation 1. All piles shall be installed with top of the piles at the grade specified in the plans. If piles are installed with grade less than 1-1/2 feet below cutoff elevation, the piles shall have a metal collar set to protect the fresh grout at the top of the piles. D. Obstructions 1. In the event that obstructions are encountered that prevent penetration of the auger to the required depth, the short hole shall be filled with grout and replacement pile(s) shall be installed. The Structural Engineer shall determine the location of replacement pile(s). E. Tolerances 1. Cutoff elevation of the piles shall be level to plus one inch or minus 2 inches tolerance. 2. Pile shafts shall be placed with a variation of not more than 2 inches per 10 feet from vertical or batter and as shown on the Construction Drawings. The maximum variation of the top of the vertical piles from the position shown on the drawings shall be not more than 4 inches for groups of 6 piles or more and 3 inches for groups of less than 6 piles. Battered piles shall be placed with a variation of the top of the piles at cutoff elevation from the position shown on the Construction Drawings of not more than 6 inches. GRMC-P1312-2005 0 AP1MM/0301/PB03.2006 3/1/06 Berth 2&3 Additional Bollards 02465.9 Augered Pressure Grouted Plies 411 • • BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2.2006 ATTACHMENT "A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECTTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 3 — CONSTRUCTION (Continued) 3.02 PILES (Continued) F. Spacing 1. Adjacent piles shall not be placed closer than 8 feet center -to -center until the grout in the piles has set for at least 6 hours. G. Mixing and Pumping of Grout 1. Only approved mixing and pump equipment shall be used in the preparation and handling of the grout. a. Materials shall be measured by weight as they are fed to the mixer, except water which may be measured by volume. The time of mixing shall be such as to produce a homogeneous grout of the desired consistency and shall be not less than 1 minute. If agitated continuously, the grout may be held in the mixer or agitator for a period not exceeding 90 minutes. Group temperature at time of placement should not exceed 95 degrees (F). b. Piles constructed with grout in excess of 90 minutes old, or temperature in excess of 95 degrees (F) shall be rejected unless supplemental cube sets are made which verify grout strengths are achieved. Grout in excess of 120 minutes old or 100 degrees (F) shall be summarily rejected. c. The grout shall meet the compressive strength specified. At no time shall the CONTRACTOR use more water than the requirements as recommended by the manufacturer of the fluidifier agent. The CONTRACTOR shall check periodically each day the materials are being mixed. GRMC-PB12-2005 AP /M Ml0301 /PB 03-2006 311/06 Berth 2&3 Additional Bollards 02465-10 Augered Pressure Grouted Piles • • BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT"A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECTTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 3 — CONSTRUCTION (Continued) 3.02 PILES (Continued) G. Mixing and Pumping of Grout (Continued) d. When hot weather conditions exist that would seriously impair the quality and strength of grout, grout should be placed in compliance with ACI-305R-77. H. Pile installation 1. The CONTRACTOR shall be required to give the Owner's Geotechnical Engineer at least 3 days notice prior to the start of installation of piles. The CONTRACTOR shall submit a pile numbering plan and schedule for pile installation. Piles shall not be installed until the schedule is approved by the Construction Manager. At no time shall the CONTRACTOR install piles without the presence of the Geotechnical Engineer Inspector representing the Owner. The CONTRACTOR shall provide full cooperation to the Inspector during installation of the piles for proper execution of his duties. If such cooperation is not forthcoming, the inspector shall have the right to suspend further work until the problem is remedied. 2. Piles shall be installed by the rotation of a continuous flight hollow -shaft auger into the ground to the tip elevation established by the requirements specified in these Specifications. Grout should then be injected through the auger shaft as the auger is being withdrawn in such a way as to exert pressure on the soil surrounding the grout -filled pile hole. While the mortar is still fluid, the steel reinforcements shall be placed as shown on the Construction Drawings. 3. The leads and auger shall be on a proper alignment in all directions before augering starts. A check of same should be made during augering and while retracting during the mortar placing process. 0 G 12-2005 AP/MU103/MM/0301/PB03-2006 3/1106 Berth 2&3 Additional Bollards 02465-11 Augered Pressure Grouted Piles - BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT"A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION fNON-SHELTERED MARKETl SECTTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 3 — CONSTRUCTION (Continued) 3.02 PILES (Continued) H. Pile Installation (Continued) 4. The CONTRACTOR shall establish an accurate method of determining the auger depth, including graduated scaled leads with clear depth marks on visible sides of the leads. 5. The hole in the bottom of the auger shall be plugged while the auger is advanced into the ground. Prior to grouting, the plug shall be removed by grout pressure. When this procedure is followed, the auger shall be rotated to its original depth to ensure that the grout is being placed at the bottom of the augered hole. At the bottom of the augered hole, grout shall be pumped until a minimum of 15 feet grout head in the hole is obtained. The auger shall remain rotating when the grout is being pumped and shall have a positive rotation throughout the pumping process. The grout shall be pumped with an initial pressure of approximately 250 psi at the pump as the auger is withdrawn. If there is a lapse in the operation of pumping, the grout shall be re -circulated through the pump, or through the mixer drum and agitator and pump. 6. Rate of grout injection and rate of auger withdrawal from the soil shall be so coordinated as to maintain at all times a positive reading on the pressure gauge. The auger shall not be withdrawn from the hole if there is no positive return flow at the top of the augered hole. 7. The grout take and total pile installation shall be at least 15 percent greater than the theoretical volume of the pile or as instructed by the Inspector. If, in the opinion of the inspector, less grout is placed than required for any 5 feet or greater interval, the pile shall be reinstalled by rotating the auger to a depth of 5 feet below the bottom of the interval followed by controlled removal and grout injection. GRMc-P812-2005 AP/M M/0301 /P803-2006 3/1 /06 Berth 2&3 Additional Bollards 02465-12 Augered Pressure Grouted Piles BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT"A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION iNON-SHELTERED MARKET) SECTTION 02465 - AUGERD PRESSURE -GROUTED PILES PART 3 - CONSTRUCTION (Continued) 3.02 PILES (Continued) H. Pile Installation (Continued) 8. The auger shall not be raised such a distance or at a rate which exceeds the capacity of the pump. The desired lifts should be of a reasonably smooth nature. A grout head of at least 15 feet shall be maintained throughout the pumping process. 9. If the auger is raised in an erratic manner or a sudden drop in the pumping pressure is observed, the auger should be penetrated at least 5 feet below the depth where this occurred. The mortar pump will continue to pump while the auger is rotated to obtain this depth. When this operation is completed, the normal pumping and raising process may be continued. 10. The CONTRACTOR's foreman shall read the depth of auger tip at the beginning of the fresh grout return at the top of the augered hole and shall relate this information to the Inspector. 11. Reinforcement steel shall be embedded in the piles as shown on the Construction Drawings while the grout is fluid. If reinforcement steel can not be readily inserted full depth into the pile, the steel shall be removed and the pile shall be redrilled and regrouted at the CONTRACTOR's expense. 12. Should an obstruction be encountered which may prevent the advancement of penetration of the auger, the structural and geotechnical engineers shall be informed. The hole shall be filled with mortar so as to eliminate any voids and replacement pile(s) added, as directed by the Structural Engineer. GRMC-PB12.2005 AP/MM/0301 /PB03-2006 3/1I06 Berth 2&3 Additional Bollards 02465-12a Augered Pressure Grouted Plies BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT "A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECiTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 3 — CONSTRUCTION (Continued) 3.02 PILES (Continued) I. Post Installation 1. Immediately after pumping the pile and removing the auger, the pile shall be protected. 2. Piles shall be periodically checked by the CONTRACTOR to determine if the grout in the piles has settled. Grout shall be added to the top to maintain the proper elevation. Additional grout shall be added before the grout in the pile has reached its initial set. If the grout in the pile is allowed to settle more than 2 feet before grout is added, the Geotechnical Engineer will determine if the top portion of the grout in the pile will be purged. 3. If 6 inches or more of water is found on top of the grout, the water shall be purged out of the pile by placing a hose or pipe at least 3 feet below the grout elevation and pumping additional grout in accordance with the direction of the Inspector may be required. 4. The as -installed plan location and cut off elevation of each pile shall be determined by a licensed surveyor employed by the CONTRACTOR, and the results submitted to the Contract Administrator. The survey shall show pile number, cutoff elevation as installed and deviations from plan location. The Owner's Structural Engineer can waive the as -installed survey requirement; if visual inspection by the Structural Engineer indicates that piles are installed within the tolerable limits. J. Unacceptable Piles 1. Piles not meeting the preceding specifications or which are damaged due to the CONTRACTOR's operations after installation shall be considered unacceptable. The CONTRACTOR shall install additional piles as directed by the Contract Administrator to replace the unacceptable piles, ail at the CONTRACTOR's expense. Redesign and enlargement of pile caps maybe necessary. The CONTRACTOR shall pay for the redesign at a rate that is to be established between the CONTRACTOR and the Owner. GR2.2005 AP/MM/030MM/0301 /PB03-2006 3/1/06 Berth 283 Additional Bollards 02465-121) Augered Pressure Grouted Piles BID NO. H-Z-05-376-B1 ADDENDUM NO. 1 March 2, 2006 ATTACHMENT "A" (Continued) SPECIFICATIONS AND REQUIREMENTS GENERAL. ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) SECTTION 02465 — AUGERD PRESSURE -GROUTED PILES PART 3 — CONSTRUCTION (Continued) 3.02 PILES (Continued) K. Final Site Cleanua 1. Restore all materials and finishes that are damaged as a result of the CONTRACTOR's operations to the original conditions. 2. Remove all debris and clean all items related to and affected by the pile installation operations. 3. Remove from the site the CONTRACTOR -owned items after completion of the pile installation. 4. Perform all final cleaning to the satisfaction of the Owner. PART 4 - MEASUREMENT AND PAYMENT 4.01 Pay Items No. 8A-8B - Furnish and Install 30-inch Diameter Augered Pressure -Grouted Piles. Description: The price per foot of piling includes the total cost for equipment, material and labor required to install the piling in accordance with the Drawings and Specifications. Measurement and Payment: Payment will be based upon the feet of pile augered and grouted as measured by the threshold inspector, in accordance with the Drawings and Specifications and accepted by the Contract Administrator. Price is based on a minimum of four piles per location. 4.01 All other activities associated with the installation of auger -cast piles shall be considered incidental, and will have no separate payment. END OF SECTION GRMC-P812-2005 APIMM/0301/PB03-2006 3/1106 Berth 2&3 Additional Bollards 02465-12c Augered Pressure Grouted Piles • BID NO. H-Z-05-376-81 ADDENDUM NO. 1 March 2.2006 ATTACHMENT "A" (Continued) DRAWING GENERAL ROADWAY AND MISCELLANEOUS CONSTRUCTION (NON -SHELTERED MARKET) (10) 110 VFW. (EOUNIY SPACED) #4 ROUND TIE • 12- O.C. MAX. (•) CoRACTOR 1D HELD NOOKP'AvEMEHT ElOVATIDN Nip ALIFAS�M10P OF CAP NN) TOP OF PLE ELEVATIONS AS REOUl1ED PRIOR TO CONSTRUCTION SECTION APG PILE ELEVATION N.T.S. REINF. INFO REFER TO PILE EL.EYATI0N THIS SHEET APG P)LE TYPICAL. CROSS ,SECTION N.T.S. B RIOVVAuRD PORT EVERGL IDES O EPARTTv1ENT OF EIFZCZ,WAPM, COL.Jl.4Th- 1SEo Orr 01w•- Fori ta.6b.1Vo14. 11. V.SA .331a (334) 323-3406 AUGERED PRESSURE GRC3UTED PILES toa.1s FH P.M: ME — — aor 6646 4/14/03 NTS FAu GRMC-P612-2005 AP/MM10301 /P1303-2006 3/1/06