【摘要】：通過在現(xiàn)有解的形式基礎(chǔ)上增加一個二次多項式,提出一種新的復(fù)合地基固結(jié)解的形式及解答方法,推導(dǎo)得到地基附加應(yīng)力既隨時間變化也隨深度變化條件下考慮樁體豎向及徑向二維井阻作用的散體材料樁復(fù)合地基固結(jié)解析解,通過退化、與已有解的比較等方法對解進(jìn)行分析驗證。結(jié)果表明,現(xiàn)有的瞬時荷載下考慮樁體徑豎向滲流的解、考慮樁體豎向滲流與變形協(xié)調(diào)的解、太沙基一維固結(jié)解等都是本文解的特例,這說明本文解的正確合理性。地基加載歷時越長,固結(jié)越慢;地基底部附加應(yīng)力越小,固結(jié)越快;考慮樁體徑豎向二維井阻時地基固結(jié)比只考慮豎向井阻時慢,樁徑比越小,樁體滲透系數(shù)越小,兩者的差異越大。本文解的表達(dá)形式及解答方法,為復(fù)合地基固結(jié)度的求解提供一種新的思路,發(fā)展和完善了現(xiàn)有的復(fù)合地基固結(jié)理論。
[Abstract]:By adding a quadratic polynomial to the existing solutions, a new form of consolidation solution for composite foundation and its solution method are proposed. The analytical solution of consolidation of composite foundation of bulk material pile considering the vertical and radial well resistance of pile body is derived under the condition that the additional stress of the foundation changes with both time and depth, and the consolidation solution of the composite foundation is obtained by degradation. Compared with the existing solutions, the solutions are analyzed and verified. The results show that the solution of vertical percolation of pile body and the solution of coordination of vertical seepage and deformation of pile body are considered under the instantaneous load. The one-dimensional consolidation solution of Terzaghi is the special case of this solution, which shows that the solution in this paper is correct and reasonable. The longer the loading duration of the foundation, the slower the consolidation, the smaller the additional stress at the bottom of the foundation, the faster the consolidation. When the vertical two-dimensional well resistance of pile is considered, the consolidation ratio of foundation only takes into account the slow time of vertical well resistance, the smaller the ratio of pile to diameter, the smaller the permeability coefficient of pile, and the greater the difference between them. The expression form and solution method of the solution in this paper provide a new way of thinking for solving the consolidation degree of composite foundation, and develop and perfect the existing consolidation theory of composite foundation.
【作者單位】： 云南省交通規(guī)劃設(shè)計研究院陸地交通氣象災(zāi)害防治技術(shù)國家工程實驗室;
【基金】：云南省交通運輸廳科技計劃項目(2015(A)12,[2014]231號(一))~~
【分類號】：TU470

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 張玉國;孫敏;謝康和;;未打穿散體材料樁復(fù)合地基固結(jié)簡化解研究[J];巖土力學(xué);2014年05期

2 趙明華;劉敦平;張玲;;考慮樁體固結(jié)變形的散體材料樁復(fù)合地基固結(jié)解析計算[J];巖土力學(xué);2010年02期

3 盧萌盟;謝康和;劉干斌;童磊;;考慮樁體固結(jié)和土體滲透性拋物線分布固結(jié)解[J];巖土工程學(xué)報;2009年07期

4 盧萌盟;謝康和;張玉國;陳國紅;;考慮施工擾動和荷載效應(yīng)的復(fù)合地基固結(jié)解[J];巖土工程學(xué)報;2008年04期

5 邢皓楓,龔曉南,楊曉軍;碎石樁復(fù)合地基固結(jié)簡化分析[J];巖土工程學(xué)報;2005年05期

6 張玉國,謝康和,應(yīng)宏偉,胡安峰;雙面半透水邊界的散體材料樁復(fù)合地基固結(jié)分析[J];巖土工程學(xué)報;2005年03期

7 王瑞春,謝康和,唐曉武;未打穿散體材料樁復(fù)合地基固結(jié)解析研究[J];公路交通科技;2004年06期

8 王瑞春,謝康和,關(guān)山海;變化荷載下散體材料樁復(fù)合地基固結(jié)解析解[J];浙江大學(xué)學(xué)報(工學(xué)版);2002年01期

9 王瑞春,謝康和;雙層散體材料樁復(fù)合地基固結(jié)解析理論[J];巖土工程學(xué)報;2001年04期

【共引文獻(xiàn)】

相關(guān)期刊論文 前10條

1 郭彪;陳賀;李亞軍;;變附加應(yīng)力條件下考慮樁體二維井阻作用的復(fù)合地基固結(jié)解析理論研究[J];巖石力學(xué)與工程學(xué)報;2017年03期

2 趙明華;吳岳武;鄭s，

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