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(1 中鋁貴陽(yáng)鋁鎂設(shè)計(jì)研究院，貴陽(yáng) 550004； 2 中鋁貴州分公司，貴陽(yáng) 550008)

［摘要］通過(guò)工程實(shí)例,介紹了孔內(nèi)深層強(qiáng)夯技術(shù)在加固雜填土和高填方土中的應(yīng)用。通過(guò)高動(dòng)能和超壓強(qiáng)在孔內(nèi)深層強(qiáng)夯，使孔內(nèi)填料在高壓強(qiáng)狀態(tài)下動(dòng)力固結(jié)，對(duì)樁間土產(chǎn)生強(qiáng)力的擠密作用，使樁間土的擠密程度高，從而達(dá)到較理想的地基加固效果。提出了孔內(nèi)深層強(qiáng)夯法復(fù)合地基承載力的計(jì)算方法和檢測(cè)手段以及設(shè)計(jì)時(shí)要注意的相關(guān)問(wèn)題,可供設(shè)計(jì)人員參考。

［關(guān)鍵詞］深層強(qiáng)夯；地基加固；復(fù)合地基；承載力檢測(cè)

Application of SDDC on disposing mixed backfilling

Gao Xi¹, Lu Xin¹, Deng Zhonghua¹, Li Enhuai², Liu Jing², Zhang Qi²(1 Guiyang AluminiumMagnesium Design & Research Institute, Guiyang 550004，China;  2 Guizhou Branch Chalieco, Guiyang 550008，China)

Abstract:Through an engineering practice, the application of SDDC (Super Down Hole Dynamic Compaction) on consolidating the mixed backfilling and high backfilling it introduced. With the forced SDDC with the high kinetic energy and super pressure, the backfilling in the hole under the high-strength state shall dynamically become consolidated while strongly compacting the earth between piles and making the earth in high density, which desirably strengthens the foundation. It also offers the method and measure for calculating and testing the bearing capacity of SDDC foundation and highlights the relevant issues to be cared in the engineering design as reference information for the designers.

Keywords:SDDC；foundation consolidation；compound foundation bed；bearing capacity test

作者簡(jiǎn)介：高晰，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:gamipublic@gami.com.cn。

參考文獻(xiàn)

［1］GB50007—2002建筑地基基礎(chǔ)設(shè)計(jì)規(guī)范［S］.北京：中國(guó)建筑工業(yè)出版社，2002.

［2］JGJ79—2002建筑地基處理技術(shù)規(guī)范［S］.北京：中國(guó)建筑工業(yè)出版社，2002.