石料生產線干縮性能研究

　　本文(wen)研(yan)究(jiu)了(le)混(hun)(hun)(hun)凝(ning)土(tu)(tu)(tu)石料(liao)(liao)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)線基本力學性能的(de)(de)(de)(de)再(zai)(zai)生(sheng)(sheng)(sheng)，確(que)保點膠石料(liao)(liao)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)線骨(gu)料(liao)(liao)混(hun)(hun)(hun)凝(ning)土(tu)(tu)(tu)在第一(yi)(yi)機(ji)械性能的(de)(de)(de)(de)再(zai)(zai)生(sheng)(sheng)(sheng)滿足國內外相關標(biao)準和(he)實際工程的(de)(de)(de)(de)需(xu)要(yao)，同(tong)時，對再(zai)(zai)生(sheng)(sheng)(sheng)骨(gu)料(liao)(liao)混(hun)(hun)(hun)凝(ning)土(tu)(tu)(tu)的(de)(de)(de)(de)干燥(zao)收縮(suo)率的(de)(de)(de)(de)數(shu)(shu)(shu)學模(mo)型(xing)(xing)，石料(liao)(liao)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)線，提供必(bi)要(yao)的(de)(de)(de)(de)力學性能參數(shu)(shu)(shu);其次，鑒于目前混(hun)(hun)(hun)凝(ning)土(tu)(tu)(tu)收縮(suo)預測數(shu)(shu)(shu)學模(mo)型(xing)(xing)，很(hen)少考(kao)慮石骨(gu)料(liao)(liao)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)線的(de)(de)(de)(de)加(jia)性效(xiao)應(ying)的(de)(de)(de)(de)現(xian)狀(影(ying)(ying)響(xiang)系(xi)數(shu)(shu)(shu))，考(kao)慮一(yi)(yi)個石材生(sheng)(sheng)(sheng)產(chan)(chan)(chan)線再(zai)(zai)生(sheng)(sheng)(sheng)了(le)總，工程中(zhong)(zhong)常(chang)用的(de)(de)(de)(de)添加(jia)劑(ji)(ji)(包(bao)括粉煤灰、減水劑(ji)(ji)、膨脹劑(ji)(ji))影(ying)(ying)響(xiang)系(xi)數(shu)(shu)(shu)的(de)(de)(de)(de)大(da)小，組成(cheng)(cheng)，環境濕度、混(hun)(hun)(hun)凝(ning)土(tu)(tu)(tu)強度等(deng)級、主要(yao)影(ying)(ying)響(xiang)因素如再(zai)(zai)生(sheng)(sheng)(sheng)骨(gu)料(liao)(liao)混(hun)(hun)(hun)凝(ning)土(tu)(tu)(tu)的(de)(de)(de)(de)干燥(zao)收縮(suo)的(de)(de)(de)(de)數(shu)(shu)(shu)學模(mo)型(xing)(xing)石料(liao)(liao)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)線混(hun)(hun)(hun)凝(ning)土(tu)(tu)(tu)強度并轉換成(cheng)(cheng)應(ying)變(bian)增量(liang)，用FORTRAN語言用戶子程序USDFLD和(he)變(bian)量(liang)的(de)(de)(de)(de)熱(re)應(ying)變(bian)作為中(zhong)(zhong)間變(bian)量(liang)，石料(liao)(liao)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)線的(de)(de)(de)(de)再(zai)(zai)生(sheng)(sheng)(sheng)骨(gu)料(liao)(liao)混(hun)(hun)(hun)凝(ning)土(tu)(tu)(tu)收縮(suo)的(de)(de)(de)(de)有限元分(fen)析模(mo)型(xing)(xing)，并進(jin)行必(bi)要(yao)的(de)(de)(de)(de)實驗(yan)(yan)驗(yan)(yan)證(zheng)。最后，通過有限元分(fen)析、試驗(yan)(yan)驗(yan)(yan)證(zheng)和(he)理(li)論分(fen)析，研(yan)究(jiu)再(zai)(zai)生(sheng)(sheng)(sheng)石料(liao)(liao)生(sheng)(sheng)(sheng)產(chan)(chan)(chan)線骨(gu)料(liao)(liao)混(hun)(hun)(hun)凝(ning)土(tu)(tu)(tu)干縮(suo)機(ji)理(li)。

　　首(shou)先對混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土配合(he)比設(she)計(ji)C30天然石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)為基(ji)準，再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土的(de)(de)(de)(de)收(shou)縮模(mo)型石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)基(ji)本力(li)(li)學(xue)參數(shu)選擇(ze)試驗，并(bing)進行了(le)(le)(le)理論分(fen)析(xi)，結(jie)果表明，石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)增加(jia)降(jiang)低了(le)(le)(le)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土骨(gu)(gu)料(liao)(liao)(liao)(liao)的(de)(de)(de)(de)流(liu)動(dong)性(xing)(xing)(xing)(xing)、孔隙結(jie)構和(he)綜合(he)影響下的(de)(de)(de)(de)舊水泥砂漿，當低再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)骨(gu)(gu)料(liao)(liao)(liao)(liao)含(han)量(liang)(liang)(liang)提(ti)高(gao)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)實力(li)(li)，但(dan)(dan)太(tai)多(duo)的(de)(de)(de)(de)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)碎石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)骨(gu)(gu)料(liao)(liao)(liao)(liao)的(de)(de)(de)(de)含(han)量(liang)(liang)(liang)可以導致石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土力(li)(li)學(xue)性(xing)(xing)(xing)(xing)能的(de)(de)(de)(de)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)和(he)C它與天然石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材骨(gu)(gu)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)產(chan)(chan)(chan)(chan)(chan)(chan)品下降(jiang)的(de)(de)(de)(de)情況(kuang)下;由于(yu)粉煤(mei)灰(hui)(hui)的(de)(de)(de)(de)滾動(dong)效果，提(ti)高(gao)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)流(liu)動(dong)，因為它提(ti)高(gao)了(le)(le)(le)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土孔隙結(jie)構的(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)，提(ti)高(gao)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)粉煤(mei)灰(hui)(hui)機械性(xing)(xing)(xing)(xing)能。固定在(zai)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)合(he)水和(he)水泥用(yong)量(liang)(liang)(liang)，減(jian)水劑(ji)的(de)(de)(de)(de)加(jia)入相當于(yu)相對劑(ji)量(liang)(liang)(liang)增加(jia)拌(ban)和(he)水，改善再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)流(liu)動(dong)性(xing)(xing)(xing)(xing)，但(dan)(dan)同(tong)時導致再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土孔隙率增加(jia)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)，石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土強(qiang)度逐漸減(jian)小(xiao)，隨著(zhu)水還原劑(ji)用(yong)量(liang)(liang)(liang)的(de)(de)(de)(de)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng);膨(peng)脹劑(ji)的(de)(de)(de)(de)加(jia)入降(jiang)低了(le)(le)(le)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土的(de)(de)(de)(de)流(liu)動(dong)性(xing)(xing)(xing)(xing)，但(dan)(dan)同(tong)時也增強(qiang)了(le)(le)(le)凝(ning)(ning)(ning)(ning)聚(ju)力(li)(li)和(he)水混(hun)(hun)(hun)(hun)(hun)(hun)(hun)合(he)的(de)(de)(de)(de)保留。只是適量(liang)(liang)(liang)膨(peng)脹劑(ji)含(han)量(liang)(liang)(liang)有助于(yu)提(ti)高(gao)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)強(qiang)度，但(dan)(dan)當膨(peng)脹劑(ji)摻量(liang)(liang)(liang)較大，石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土強(qiang)度降(jiang)低的(de)(de)(de)(de)再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng);再(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)料(liao)(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)骨(gu)(gu)料(liao)(liao)(liao)(liao)混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土的(de)(de)(de)(de)彈性(xing)(xing)(xing)(xing)模(mo)量(liang)(liang)(liang)進行了(le)(le)(le)測試和(he)分(fen)析(xi)，并(bing)對混(hun)(hun)(hun)(hun)(hun)(hun)(hun)凝(ning)(ning)(ning)(ning)土彈性(xing)(xing)(xing)(xing)模(mo)量(liang)(liang)(liang)預測的(de)(de)(de)(de)比較。

　　其次，通(tong)過(guo)小麥(mai)Marquardt法(fa)測試(shi)的(de)(de)(de)基礎(chu)上(shang)(shang)(Levenberg Marquardt)考慮膨脹劑(ji)的(de)(de)(de)再生(sheng)(sheng)(sheng)(sheng)骨(gu)(gu)料(liao)(liao)(liao)的(de)(de)(de)影響系數(shu)，提出(chu)了石(shi)材生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線擬合(he)一般的(de)(de)(de)全局(ju)優化(hua)(hua)(hua)方法(fa)，粉煤灰和(he)減水劑(ji)和(he)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線的(de)(de)(de)再生(sheng)(sheng)(sheng)(sheng)骨(gu)(gu)料(liao)(liao)(liao)混(hun)凝(ning)(ning)土的(de)(de)(de)干燥(zao)(zao)收(shou)(shou)(shou)縮(suo)(suo)預測的(de)(de)(de)數(shu)學模型，并(bing)將其轉(zhuan)化(hua)(hua)(hua)為應(ying)(ying)變(bian)增量(5.1)，用(yong)(yong)FORTRAN語(yu)言(yan)編制用(yong)(yong)戶子程序USDFLD和(he)熱應(ying)(ying)變(bian)場(chang)變(bian)量可以轉(zhuan)換為中間(jian)變(bian)量編寫的(de)(de)(de)，從而應(ying)(ying)用(yong)(yong)大型有限元分析(xi)軟件ABAQUS實現再生(sheng)(sheng)(sheng)(sheng)骨(gu)(gu)料(liao)(liao)(liao)混(hun)凝(ning)(ning)土收(shou)(shou)(shou)縮(suo)(suo)數(shu)值(zhi)模擬石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線，和(he)進行必要的(de)(de)(de)測試(shi)。早期的(de)(de)(de)研究結果表明(ming)(ming)，干燥(zao)(zao)，石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線骨(gu)(gu)料(liao)(liao)(liao)混(hun)凝(ning)(ning)土的(de)(de)(de)米(mi)塞斯應(ying)(ying)力(li)值(zhi)和(he)位(wei)(wei)移的(de)(de)(de)再生(sheng)(sheng)(sheng)(sheng)(收(shou)(shou)(shou)縮(suo)(suo))增長尤為明(ming)(ming)顯，但(dan)隨著干燥(zao)(zao)的(de)(de)(de)時代發(fa)展，逐漸變(bian)緩;位(wei)(wei)移的(de)(de)(de)變(bian)化(hua)(hua)(hua)首先發(fa)生(sheng)(sheng)(sheng)(sheng)在(zai)干燥(zao)(zao)收(shou)(shou)(shou)縮(suo)(suo)試(shi)件表面(mian)，和(he)最大位(wei)(wei)移變(bian)化(hua)(hua)(hua)也在(zai)試(shi)樣的(de)(de)(de)頂部。當干縮(suo)(suo)擴散至50mm深度，以低頻時間(jian);誤差(cha)分析(xi)表明(ming)(ming)，骨(gu)(gu)料(liao)(liao)(liao)混(hun)凝(ning)(ning)土干縮(suo)(suo)的(de)(de)(de)再生(sheng)(sheng)(sheng)(sheng)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線的(de)(de)(de)計算值(zhi)與試(shi)驗結果吻合(he)良(liang)好。再生(sheng)(sheng)(sheng)(sheng)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線上(shang)(shang)骨(gu)(gu)料(liao)(liao)(liao)混(hun)凝(ning)(ning)土的(de)(de)(de)應(ying)(ying)力(li)值(zhi)與骨(gu)(gu)料(liao)(liao)(liao)混(hun)凝(ning)(ning)土的(de)(de)(de)應(ying)(ying)力(li)值(zhi)之(zhi)間(jian)存(cun)在(zai)良(liang)好的(de)(de)(de)線性相關(guan)關(guan)系。再生(sheng)(sheng)(sheng)(sheng)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線骨(gu)(gu)料(liao)(liao)(liao)混(hun)凝(ning)(ning)土干縮(suo)(suo)率略高(gao)于天然石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)產(chan)(chan)(chan)線在(zai)相同條件下的(de)(de)(de)干縮(suo)(suo)。

　　第三、通過對(dui)(dui)再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)料(liao)(liao)(liao)混(hun)(hun)凝(ning)(ning)土(tu)的(de)(de)(de)(de)(de)收縮(suo)理(li)論(lun)(lun)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)(de)孔隙結(jie)構(gou)模型(xing)，并通過實驗(yan)研究(jiu)和(he)理(li)論(lun)(lun)分(fen)析，數值模擬(ni)方法(fa)探討(tao)再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)料(liao)(liao)(liao)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)、減(jian)水(shui)(shui)劑(ji)、膨脹(zhang)劑(ji)、粉(fen)煤灰(hui)添加，如石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)骨(gu)料(liao)(liao)(liao)混(hun)(hun)凝(ning)(ning)土(tu)的(de)(de)(de)(de)(de)孔結(jie)構(gou)和(he)潤濕(shi)(shi)(shi)性材(cai)料(liao)(liao)(liao)的(de)(de)(de)(de)(de)再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)混(hun)(hun)凝(ning)(ning)土(tu)不同(tong)因素，水(shui)(shui)分(fen)遷移狀(zhuang)態的(de)(de)(de)(de)(de)變(bian)化，石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)(de)再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)是對(dui)(dui)混(hun)(hun)凝(ning)(ning)土(tu)收縮(suo)變(bian)形(xing)的(de)(de)(de)(de)(de)機(ji)(ji)理(li)分(fen)析，再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)料(liao)(liao)(liao)混(hun)(hun)凝(ning)(ning)土(tu)的(de)(de)(de)(de)(de)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)與天然骨(gu)料(liao)(liao)(liao)混(hun)(hun)凝(ning)(ning)土(tu)的(de)(de)(de)(de)(de)收縮(suo)機(ji)(ji)理(li)相(xiang)似(si)的(de)(de)(de)(de)(de)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)骨(gu)料(liao)(liao)(liao)混(hun)(hun)凝(ning)(ning)土(tu)收縮(suo)變(bian)形(xing)是孔隙結(jie)構(gou)、材(cai)料(liao)(liao)(liao)、水(shui)(shui)潤濕(shi)(shi)(shi)性和(he)水(shui)(shui)濃(nong)度場(chang)分(fen)布綜合作用的(de)(de)(de)(de)(de)結(jie)果(guo)。通過提(ti)高再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)集料(liao)(liao)(liao)混(hun)(hun)凝(ning)(ning)土(tu)的(de)(de)(de)(de)(de)孔結(jie)構(gou)，降(jiang)低石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)骨(gu)料(liao)(liao)(liao)混(hun)(hun)凝(ning)(ning)土(tu)材(cai)料(liao)(liao)(liao)與水(shui)(shui)的(de)(de)(de)(de)(de)潤濕(shi)(shi)(shi)性的(de)(de)(de)(de)(de)再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(增大接觸(chu)角)，以(yi)及減(jian)少水(shui)(shui)分(fen)的(de)(de)(de)(de)(de)擴散速(su)率，有利(li)于抑(yi)制再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)料(liao)(liao)(liao)混(hun)(hun)凝(ning)(ning)土(tu)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)干燥收縮(suo)。利(li)用上述理(li)論(lun)(lun)可以(yi)很好的(de)(de)(de)(de)(de)解釋了水(shui)(shui)灰(hui)比，為骨(gu)料(liao)(liao)(liao)石(shi)料(liao)(liao)(liao)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)、減(jian)水(shui)(shui)劑(ji)、粉(fen)煤灰(hui)、碎石(shi)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)(xian)(xian)(xian)(xian)，再(zai)(zai)(zai)(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)骨(gu)料(liao)(liao)(liao)混(hun)(hun)凝(ning)(ning)土(tu)的(de)(de)(de)(de)(de)收縮(suo)、膨脹(zhang)混(hun)(hun)凝(ning)(ning)土(tu)收縮(suo)的(de)(de)(de)(de)(de)作用機(ji)(ji)制可以(yi)利(li)用“相(xiang)對(dui)(dui)變(bian)形(xing)”和(he)“反變(bian)形(xing)”理(li)論(lun)(lun)的(de)(de)(de)(de)(de)解釋。

　　第四(si),采用大型有(you)限(xian)元(yuan)分(fen)(fen)析軟件(jian)ABAQUS中質量(liang)擴散(san)模塊對再(zai)生(sheng)石料(liao)(liao)(liao)(liao)生(sheng)產(chan)線骨(gu)(gu)料(liao)(liao)(liao)(liao)混凝(ning)(ning)土材料(liao)(liao)(liao)(liao)水(shui)分(fen)(fen)擴散(san)行為(wei)進(jin)行模擬計算,并(bing)進(jin)行了實驗(yan)(yan)驗(yan)(yan)證,同時(shi),通(tong)過(guo)實驗(yan)(yan)研究分(fen)(fen)析了再(zai)生(sheng)石料(liao)(liao)(liao)(liao)生(sheng)產(chan)線骨(gu)(gu)料(liao)(liao)(liao)(liao)混凝(ning)(ning)土干縮值(zhi)與失(shi)(shi)水(shui)量(liang)之間的(de)關系。結果表(biao)明：通(tong)過(guo)誤差(cha)分(fen)(fen)析表(biao)明,再(zai)生(sheng)石料(liao)(liao)(liao)(liao)生(sheng)產(chan)線骨(gu)(gu)料(liao)(liao)(liao)(liao)混凝(ning)(ning)土水(shui)分(fen)(fen)遷移模型失(shi)(shi)水(shui)量(liang)計算值(zhi)與室內實驗(yan)(yan)測試值(zhi)吻合較好;水(shui)分(fen)(fen)的(de)蒸發(fa)首先從再(zai)生(sheng)石料(liao)(liao)(liao)(liao)生(sheng)產(chan)線骨(gu)(gu)料(liao)(liao)(liao)(liao)混凝(ning)(ning)土表(biao)面開始(shi),并(bing)迅速達到平(ping)衡值(zhi),然(ran)后逐漸擴展到再(zai)生(sheng)石料(liao)(liao)(liao)(liao)生(sheng)產(chan)線骨(gu)(gu)料(liao)(liao)(liao)(liao)混凝(ning)(ning)土的(de)內部(bu),擴展的(de)速率極(ji)其緩慢,最終達到與環境濕度平(ping)衡,在擴散(san)過(guo)程(cheng)中,水(shui)分(fen)(fen)濃(nong)度呈梯度分(fen)(fen)布;水(shui)分(fen)(fen)干燥擴展至50mm厚度時(shi)大約需33d-65d時(shi)間,具體時(shi)間因配合比不同而略有(you)差(cha)異(yi);再(zai)生(sheng)石料(liao)(liao)(liao)(liao)生(sheng)產(chan)線骨(gu)(gu)料(liao)(liao)(liao)(liao)混凝(ning)(ning)土干縮值(zhi)與同條件(jian)下失(shi)(shi)水(shui)量(liang)之間并(bing)不是簡單的(de)線性(xing)關系。