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（1 山東金城建設(shè)有限公司， 淄博 255000； 2 中國礦業(yè)大學(xué)， 徐州 221116）
［摘要］隨著城市建設(shè)中地下空間開發(fā)利用愈來愈多，深基坑工程變得越來越復(fù)雜，對其支護(hù)形式的研究也面臨前所未有的挑戰(zhàn)。以石家莊市某深基坑工程為例，采用非線性有限元方法對樁錨-土釘墻分段組合和樁錨-土釘墻分級組合兩種不同組合支護(hù)形式下的坡頂水平位移、豎向位移、深層土體位移進(jìn)行分析。對比發(fā)現(xiàn)，樁錨-土釘墻分級支護(hù)較樁錨土釘墻分段支護(hù)在坡頂水平位移、豎向位移、深層土體位移方面控制效果更佳。
［關(guān)鍵詞］深基坑； 樁錨支護(hù)； 土釘墻； 優(yōu)化組合
中圖分類號： TU196 文獻(xiàn)標(biāo)識碼： A文章編號： 1002-848X(2016)S2-0550-05
Comparisons of supporting forms of deep foundation with different supporting
combinations based on the numerical simulation
Jia Yi1， Ma Chong1， Zhang Yingying2， Zhang Dongjian1
(1 Shandong Golden City Construction Co., Ltd., Zibo 255000, China;
2 China University of Mining and Technology, Xuzhou 221116, China)
Abstract: With the development and application of urban underground space, the construction of deep foundation engineering is becoming more and more complicated, while the study on the supporting form is also facing unprecedented challenges. A deep foundation engineering in Shijiazhuang is taken as an example. The finite element method is used to compare the pile anchor and soil nailing wall sectional combination and hierarchical combinationl with two different combinations, in which the horizontal displacement, vertical displacement and deep displacement of soil of slope top were analyzed. Comparing the hierarchical combination of pile anchor and soil nailing wall with sectional combination′s, in which the top horizontal displacement, vertical displacement and deep displacement of soil, and the latter′s control effect is better. The results show that the top horizontal displacement, vertical displacement and deep displacement of soil the sectional combinationl effect is better, in which the hierarchical combination of pile anchor and soil nailing wall and sectional combination′s comparison.
Keywords: deep foundation; pile anchor supporting; soil nailing wall; optimum combination
作者簡介： 賈毅，本科，工程師，一級建造師，Email：zibojiayi@126.com。
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