Laserfiche WebLink
subgrade, as determined by the City. Backfill over excavation with <br /> Stabilization Material and compact. A layer of geotextile fabric shall be <br /> placed between the stabilization material and the bedding material. <br /> F. Stockpiling Excavated Materials <br /> 1. Pile suitable material for backfilling in an orderly manner a sufficient <br /> distance from banks of the trench to avoid overloading and to prevent slides or <br /> cave-ins. <br /> a. CONTRACTOR shall follow the most current regulations <br /> concerning excavations set forth by OSHA. <br /> 2. Remove and dispose of excess excavated materials not suitable or not <br /> required for backfilling. <br /> 3. Do not stockpile excavated material against existing structures or <br /> appurtenances. <br /> G. Trench Widths <br /> 1. Trench width shall be maintained to within three-inches(Y)of that specified on <br /> plans or otherwise directed by the City. <br /> a. The trench wall shall not be undercut in order to obtain clearance. <br /> i <br /> 3.03 PIPE BEDDING <br /> A. Bedding classes: Place pipe bedding in accordance with the details shown on the <br /> Construction Drawings. Provide higher class bedding where unexpected trench <br /> conditions are encountered. <br /> B. Placement and Compaction <br /> 1. Distribute, grade, and compact bedding material to provide uniform and <br /> continuous support beneath the pipe at all points between bells and pipe joints. <br /> a. Pipe shall not be supported by the bells. <br /> 2. Deposit bedding material and compact uniformly and simultaneously on each <br /> side of the pipe to prevent lateral displacement. <br /> 3. Compact granular bedding material by vibrating, slicing with a shovel, or <br /> bent tee-bar. <br /> 3.04 GROUND WATER BARRIERS <br /> A. Ground water barriers shall be constructed in such a manner to impede passage of <br /> water through bedding material. <br /> Boyd Freeman Ditch Improvements 02320-8 Trenching,Backfilling and <br /> August 2005 Compacting <br />