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Geotechnical Gnginecring E�„�uation <br /> 8310 IZim Drivc- Rynn <br /> Novembcr R, 2004 <br /> RMI Pilc No. 21604 <br /> Pagc 7 <br /> compaclion specificalion of strucUiral Iill. Pinal slopes ;hould be planted and covercd �vith strn�v or jute <br /> nettia�. The vegetation should be maintained until it is established. <br /> Structurul Fill <br /> General: All fill placed bcncath huildings, pnvemcnts or othcr settlement-sensitivc fcatures should bc <br /> placed us structur�l fill. Por thc purpose of this report, structural lill is defined as material thnt is placed <br /> in nccordancc with p�cscribed methods and standards, and is monitored by an e�periei�ced gcotechnical <br /> profes�ional or soils technicinn. PieW monitoring procedures would include the performance of a <br /> representatiee nwnber ol' in-pince density tests to document the atlninment of the desimd degrec of <br /> relative compaction. 'I'he areas to receive fill should b�• prepared as oudmed in the Site Preparation and <br /> GraJing sr.bscction of this rcport. <br /> Materials: Imported structuriil fill shuuld consist of a goud qualitq, free-draining eranular soil, frec of <br /> org�nics am' other dcleteriou_= malr.rial. nnd be ��ell graded to ❑ masimum size of i�bout 3 inchcs. <br /> Importe.:, ali-weuthcr fill should mcct thesc requircments, and also should contain no more then nbout � <br /> perccnt tincs(suil passing a U.S. No. 200 Sicve), based on that fraction passing thc U.S. 3/4-inch sievc. <br /> 1'lic on-siti nntivc •:�ils prcdominandy comprisc medium sanJ widi gr�vel and cobbles. It may be <br /> fcasihle to usc thi�, matcrial us structural ti�!, if it is rclativcly free ci organics and can be moisWre- <br /> conditioned to ncnrv�,F,;i;�nnn moisturo contcnt lor compnction. l'he necessary moiswre-conditioning may <br /> �onsist of drying the matcri.d, which ��ould rcquirc .in adequmc arca tu sprcad the mnter�nl out. Drying <br /> Ihe mnlerial maV��ot be possiblc outside of the sununcr season. <br /> �ill 1'lacement �oilnwing suh•;radc preparation, placement of the stnrcturnl fill may procced. All fill <br /> should bc pineed in 6- tc� 8-inch thick wii(orni lifts. and cach IiR should be spread evenly and be <br /> thoroughly cotnpacted prior to placemcnt of subsequent lifis. All stnictural fill underlying building areas <br /> shomd be compnctcd to at Icast 95 perccnt oC its masimum dry density. Macimum dry densit}', in this <br /> repurt, rcfcr, to tliat densiq� �s determincd b�- thc AST�1 D 15?7 compnction test procedurc. The <br /> moisture content of thc soils to bc coiupncted should be within about � n�����,e or on���»���,. so �nne n <br /> rcndily compnctnble condition e�ists. It may be nettssup�to o�•cresc���atc nnd remoae wet soils in cases <br /> where drying to a compnctable conditiun is not fensible. All compa_tion should be accomplished by <br /> .quipment of a h pe and size sufficient to auain the desired degrc�of cc,mpaction. <br /> RMI Associates, Ltd. <br />