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� <br /> � APPENDIX C <br /> GROUND ANCHOR LOAD TESTS AND SHORING MONITORING PROGRAM <br /> � GROUND ANCHOR LOAD TESTING <br /> � General <br /> fhe locations of dic luad tests shall bc approced b}' the I:ncineer and shall bc representatice of the fleld <br /> condi�ions. Lond tests shall not be peribrmed until [h� n;iiVtieback grout and shotcret� wall �:icing. where <br /> � present, h;ice uttained u[ Ieast 50 percent of the spccified 23-dny compressive strengdts. <br /> \1`hcrc Icmpor:in� cusin�� ��f ihc uuhnndcd I�neth o' te�t nails!tiebncks is prm�ided. thc c:isinu shall bc <br /> � installcd io pr��rnt inicracti�,n 6ct���ccn thc bondcd Icn�rth of thc nuil�tich;�ck und thc casims�lestinc <br /> app:iratus. <br /> Thc resting ct�uipmcnt sh;ill inclu�l� t��o di;il _agr, ;iccur;uc tu 0.001-ineh, a di:il ��:i;c support. :i <br /> Icalibratcd jack and prc,surc _;iec. ;i pump, and thc luad tcst rc;ictiun fr;mi�. fhr di;il uagc shuuld bc <br /> t aliened ��ithin � degrecs of thc lom�itudinal naiUticback a�is and shall b�. indep�ndenth supported of thc <br /> load frame!j;icl: and thc shorin, wall. Che hydraulic j.tek. pressurc _age anJ pump �hall be used w applc I <br /> { and mcasurc ihc tcst load,. ' <br /> I <br /> 1'he jack und prcssurc eage shall bc calibr.ited by an independent testim� labor.ttory as a unit. l hc <br /> � pressure ga��c shall be ��r;iduatcd in IOU psi inerements or less and shall ha�e a ramee no� exccedim� hvicr <br /> � the :mticipated masinnim p�essw'e Juring testinc unless approved bv ihe Gngineec The ram tracel uf the <br /> juck shall be sufficient to enablr the tes[to be perfbnned witlwut re-positiuning thejnck. <br /> i Tlw jack shall bc indcpendentl� supporred :md ccntercd o��r thc naiUtichack so that thc n�iiUtieback docs <br /> nut carry thc wcight of the.jack. l he j;uk. bc;uing plates. and �ues'sin�: :mchora�,c shall be ali��ned with <br /> thc naiUticback. l�hc initial positiun cf thc jack sh;�ll bc such that m-posi[ionin� uf die jxk is not <br /> � ncccssary during thc load test. <br /> Thc rc:iction tiamc should be designed/sized such that excessi�c dcllcction nf the test apparatus ducs nut <br /> � occur and that the tcstim�app�u':uus does not necd ro bc repositioned duriu�: !ne IoaJ test. II thc rcaction <br /> j fr.�mc hears directl�� on the shorine wt�ll facim�. the rc�ctiun �i'atuc should be desigeeJ w nut d.unugc tlre <br /> facim_. - <br /> i <br /> Verification Tests <br /> Prior to productiun suil n:ul ticbaek installau���. -' Ieast t���o suil nails/ticback, for each soil rype shall be <br /> � irstcd to validate the dcsi�n pulluut ��aluc. ,�II test n.�il5'ticbacks sh;ill be instalkd by the same methuds. <br /> � ,crsonnel, material. and a ui iment as thc i �duction anchors. Chviees in mctltuJs, personncl, matcrial. <br /> I 1 1 P'` <br /> or equi��ment m.�y rcquirc ;�.Idition;il vcriticntion �cstine ns Jetermined b�' the [nginccr. At Ic:�st t��'o <br /> � successlul varilicatiun tests shall be performed for exh installation method and each soil tvpe. �ihe <br /> � nail�iticbacks u�ed �ur the �uitication tests ntay bc used as prodtre[iun nails�[icbacks if appru�'ed by the <br /> L:nCineef. <br /> Pur soil nails, thc unbonded len�,th of th� o.st n:�ils sh,ill bc a[ Icast 3 t�et unless approved othrn�isc by <br /> the [n_incec 'Thc bund Icneth of du test nails sh:dl not be less dian 10 (eet and shall not be lor,gcr d�an <br /> ihu bond Iength thn[ ��'ould prc��ent testing to 300 percen[ uf thc desi��n loud while not exceeding d�e <br /> ❑Ilo��abic bar luad. 'I�h� ;�Ilo��'able b;u' load durin� tes[im� shall not escee�l 30 percent uf the iteel ultimatc <br /> ;ucn�th for Gradc I:0 bars' or 90 percent of the stcel u!timate sn'cn�th fbr Grade 60 and 7� bars. l�he <br /> :illu����blc licb:uk IuaJ shuuld nut estecJ SO percent uf the sieel ultimate strenuth. <br /> � ,%�i;;� Ai, l0��8-rI0:-�r0 /'11�CC-I GEOENGINf,EflS� <br /> JucPis!l�Y. _0�)G <br />