本文選題：高速公路路基 + 注水試驗(yàn)��； 參考：《沈陽(yáng)工業(yè)大學(xué)學(xué)報(bào)》2014年05期

【摘要】：為了對(duì)高速公路路基注漿加固效果進(jìn)行評(píng)價(jià),采用注水試驗(yàn)、觸探試驗(yàn)、檢查孔取芯與孔內(nèi)電視攝像方法進(jìn)行檢測(cè).注漿后注水試驗(yàn)法檢測(cè)結(jié)果表明,地層透水率都低于47 Lu,能夠防止上部軟塑狀粉質(zhì)粘土沿溶洞、溶蝕裂隙產(chǎn)生流動(dòng)與淘空;觸探試驗(yàn)結(jié)果表明,注漿后不同深度路基承載力的取值fak≥248 kPa;檢查孔取芯結(jié)果表明,漿液在土體中形成縱橫交錯(cuò)漿脈骨架的復(fù)合土體能大幅提高土體的強(qiáng)度;鉆孔孔內(nèi)電視攝像結(jié)果表明,注漿前土體空隙較大,注漿后土體中的空隙全部被水泥漿脈充填.4種檢驗(yàn)方法表明注漿后效果良好,同時(shí)也表明綜合評(píng)價(jià)法是評(píng)價(jià)注漿效果的有效方法,對(duì)類(lèi)似工程具有一定的借鑒與指導(dǎo)意義.
[Abstract]:In order to evaluate the reinforcement effect of highway subgrade grouting, water injection test and penetration test were used to detect the coring hole and the television camera inside the hole. The results of water injection test after grouting show that the permeable rate of formation is lower than 47 Lu. it can prevent the flow and scouring of the upper soft plastic silty clay along the karst cave, and the results of the penetration test show that the fluidity and scouring of the upper soft plastic silty clay along the cave can be prevented. The value of bearing capacity of subgrade with different depth after grouting is fak 鈮，

本文編號(hào)：1974019