GB/T50123土工虹吸桶比重測定儀

GB/T50123土工虹吸桶比重測定儀虹(hong)(hong)吸筒(tong)(tong)(tong)(tong)比(bi)(bi)(bi)重(zhong)測(ce)(ce)定儀用(yong)(yong)于(yu)(yu)(yu)(yu)工(gong)(gong)(gong)(gong)業與(yu)(yu)民用(yong)(yong)建筑、水(shui)(shui)利(li)、交通(tong)(tong)等(deng)各(ge)(ge)(ge)類(lei)(lei)工(gong)(gong)(gong)(gong)程的(de)(de)地基土及回填土。 比(bi)(bi)(bi)重(zhong)瓶法適用(yong)(yong)于(yu)(yu)(yu)(yu)粒(li)(li)徑(jing)小(xiao)于(yu)(yu)(yu)(yu)5mm的(de)(de)各(ge)(ge)(ge)類(lei)(lei)土；浮(fu)稱(cheng)(cheng)法適用(yong)(yong)于(yu)(yu)(yu)(yu)粒(li)(li)徑(jing)等(deng)于(yu)(yu)(yu)(yu)、大(da)于(yu)(yu)(yu)(yu)5mm的(de)(de)各(ge)(ge)(ge)類(lei)(lei)土，且其中(zhong)粒(li)(li)徑(jing)大(da)于(yu)(yu)(yu)(yu)20mm的(de)(de)土質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)應(ying)小(xiao)于(yu)(yu)(yu)(yu)總土質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)的(de)(de)10%；虹(hong)(hong)吸筒(tong)(tong)(tong)(tong)法適用(yong)(yong)于(yu)(yu)(yu)(yu)粒(li)(li)徑(jing)等(deng)于(yu)(yu)(yu)(yu)、大(da)于(yu)(yu)(yu)(yu)5mm的(de)(de)各(ge)(ge)(ge)類(lei)(lei)土，且其中(zhong)粒(li)(li)徑(jing)大(da)于(yu)(yu)(yu)(yu)20mm的(de)(de)土質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)等(deng)于(yu)(yu)(yu)(yu)、大(da)于(yu)(yu)(yu)(yu)總土質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)的(de)(de)10%。 二、檢(jian)測(ce)(ce)參數及執(zhi)行標(biao)(biao)準(zhun)(zhun)(zhun)： 1、檢(jian)測(ce)(ce)參數：土樣(yang)比(bi)(bi)(bi)重(zhong)。 2、執(zhi)行標(biao)(biao)準(zhun)(zhun)(zhun)：GB/T50123-1999《土工(gong)(gong)(gong)(gong)試(shi)驗方法標(biao)(biao)準(zhun)(zhun)(zhun)》 三、儀器設備： 1、虹(hong)(hong)吸筒(tong)(tong)(tong)(tong)裝(zhuang)置(zhi)，由虹(hong)(hong)吸筒(tong)(tong)(tong)(tong)和虹(hong)(hong)吸管(guan)(guan)(guan)組成 2、臺秤：稱(cheng)(cheng)量(liang)(liang)(liang)(liang)(liang)10KG，感量(liang)(liang)(liang)(liang)(liang)1g 3、量(liang)(liang)(liang)(liang)(liang)筒(tong)(tong)(tong)(tong)：容積(ji)大(da)于(yu)(yu)(yu)(yu)2000ml 4、其他：烘箱(xiang)、溫度計(ji)、孔徑(jing)5mm及20mm的(de)(de)篩等(deng) 四、樣(yang)本大(da)小(xiao)及抽(chou)樣(yang)方法： 根據設計(ji)要求每(mei)(mei)單(dan)位工(gong)(gong)(gong)(gong)程至(zhi)(zhi)(zhi)少(shao)(shao)取三個點(dian)(dian)(dian)；對(dui)1000m2以(yi)上工(gong)(gong)(gong)(gong)程，每(mei)(mei)100m2 至(zhi)(zhi)(zhi)少(shao)(shao)應(ying)取一個點(dian)(dian)(dian)。3000m2以(yi)上工(gong)(gong)(gong)(gong)程，每(mei)(mei)300m2至(zhi)(zhi)(zhi)少(shao)(shao)應(ying)取一個點(dian)(dian)(dian)。每(mei)(mei)一獨(du)立(li)基礎下(xia)至(zhi)(zhi)(zhi)少(shao)(shao)應(ying)有1點(dian)(dian)(dian)，基槽每(mei)(mei)20延米應(ying)有1點(dian)(dian)(dian)。 五、檢(jian)測(ce)(ce)步驟及數據處理： 1、取代(dai)表(biao)性試(shi)樣(yang)試(shi)樣(yang)700-1000G，試(shi)樣(yang)應(ying)清(qing)洗潔凈直(zhi)至(zhi)(zhi)(zhi)顆粒(li)(li)表(biao)面(mian)無(wu)塵土和其他污物。 2、將(jiang)試(shi)樣(yang)浸(jin)入水(shui)(shui)中(zhong)一晝夜后取出(chu)(chu)晾干(gan)，對(dui)大(da)顆粒(li)(li)試(shi)樣(yang)宜用(yong)(yong)干(gan)布擦干(gan)表(biao)面(mian),并稱(cheng)(cheng)晾干(gan)試(shi)樣(yang)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)。 3、將(jiang)清(qing)水(shui)(shui)注入虹(hong)(hong)吸筒(tong)(tong)(tong)(tong)至(zhi)(zhi)(zhi)虹(hong)(hong)吸管(guan)(guan)(guan)口有水(shui)(shui)溢出(chu)(chu)時(shi)關(guan)管(guan)(guan)(guan)夾(jia)。 4、將(jiang)試(shi)樣(yang)緩緩放(fang)入虹(hong)(hong)吸筒(tong)(tong)(tong)(tong)中(zhong)，邊(bian)放(fang)邊(bian)攪(jiao)拌(ban)，至(zhi)(zhi)(zhi)試(shi)樣(yang)中(zhong)無(wu)氣泡逸出(chu)(chu)為止，攪(jiao)動時(shi)水(shui)(shui)不得濺出(chu)(chu)筒(tong)(tong)(tong)(tong)外。 5、當虹(hong)(hong)吸筒(tong)(tong)(tong)(tong)內水(shui)(shui)面(mian)平穩時(shi)開(kai)管(guan)(guan)(guan)夾(jia)，讓試(shi)樣(yang)排開(kai)的(de)(de)水(shui)(shui)通(tong)(tong)過虹(hong)(hong)吸管(guan)(guan)(guan)流入量(liang)(liang)(liang)(liang)(liang)筒(tong)(tong)(tong)(tong)，稱(cheng)(cheng)量(liang)(liang)(liang)(liang)(liang)筒(tong)(tong)(tong)(tong)與(yu)(yu)水(shui)(shui)總質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)，準(zhun)(zhun)(zhun)確(que)至(zhi)(zhi)(zhi)0.5G，并測(ce)(ce)定量(liang)(liang)(liang)(liang)(liang)筒(tong)(tong)(tong)(tong)內水(shui)(shui)溫,準(zhun)(zhun)(zhun)確(que)到0.5 。 6、取出(chu)(chu)試(shi)樣(yang)烘至(zhi)(zhi)(zhi)恒(heng)量(liang)(liang)(liang)(liang)(liang)、稱(cheng)(cheng)烘干(gan)試(shi)樣(yang)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)，準(zhun)(zhun)(zhun)確(que)至(zhi)(zhi)(zhi)0.1G，稱(cheng)(cheng)量(liang)(liang)(liang)(liang)(liang)筒(tong)(tong)(tong)(tong)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)，準(zhun)(zhun)(zhun)確(que)至(zhi)(zhi)(zhi)0.5G。 7、土粒(li)(li)的(de)(de)比(bi)(bi)(bi)重(zhong)，應(ying)按下(xia)式計(ji)算(suan)(suan)： ms Gs=-------------Gwt (m-m1)-(m0-ms) 式中(zhong)：m-----晾干(gan)試(shi)樣(yang)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)g m1----量(liang)(liang)(liang)(liang)(liang)筒(tong)(tong)(tong)(tong)加水(shui)(shui)總質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)g m0----量(liang)(liang)(liang)(liang)(liang)筒(tong)(tong)(tong)(tong)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)g 其余符合同(tong)前(qian)，計(ji)算(suan)(suan)至(zhi)(zhi)(zhi)0.01，計(ji)算(suan)(suan)平均比(bi)(bi)(bi)重(zhong)與(yu)(yu)（T0113-93）浮(fu)稱(cheng)(cheng)法相同(tong)。 式中(zhong)：mc—量(liang)(liang)(liang)(liang)(liang)筒(tong)(tong)(tong)(tong)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)（g） mcw—量(liang)(liang)(liang)(liang)(liang)筒(tong)(tong)(tong)(tong)與(yu)(yu)水(shui)(shui)的(de)(de)總質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)（g） mad—晾干(gan)試(shi)樣(yang)的(de)(de)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)（g） 8、試(shi)驗結(jie)果取兩次(ci)試(shi)驗平均值