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位置：首页 >> 期刊文章
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摘要：
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基于旋喷桩防护真空预压影响区构筑物的工程实例,对影响区防护和未防护断面的表面位移、深层侧向位移、地层中孔隙水压力和地下水位变化等进行对比试验。试验结果表明旋喷桩的止水和支护效果好,保护了建筑物的安全;分析得出旋喷桩与土层交界面处的裂缝和影响区内的排水板减弱了真空预压对周围环境的影响程度,但对加固区内加固效果有不利影响。并对旋喷桩的防护效果进行评价和进一步研究提出建议。
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Based on the engineering examples wherein iet-grouting piles were used to protect structures in areas of soft ground influenced by vacuum preloading,comparative tests were made on the surface displacement,lateral displacement of deep soil,pore water pressure in soil and change in ground water in the protected and unprotected areas influenced by vacuum preloading.The test results showed that jetgrouting piles produced good water stopping and supporting effect to protect the structures in the affected areas.The analyses indicated that cracks developed between the jet-grouting piles and the soil and the prefabricated drains in the improved areas diminished the influence of vacuum preloading upon the surrounding environment,but produced detrimental effect upon the improvement of the soil treated by the vacuum preloading method.The effect of protection by the jet-grouting piles was evaluated and recommendations were made for further studies.
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基金项目：
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广州四航工程技术研究院资助项目(S2005D24);;
华南理工大学自然科学基金资助项目(B03~E5050960)
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作者简介：
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参考文献：
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[1]高志义.真空预压法的机理分析[J].岩土工程学报,1989,11(4):45-56.
[2]陈环,鲍秀清.负压条件下土的固结有效应力[J].岩土工程学报,1984,6(5):39-47.
[3]龚晓南,岑仰润.真空预压加固软土地基机理探讨[J].哈尔滨建筑大学学报,2002,35(2):7-10.
[4]于志强,朱耀庭,喻志发.真空预压法加固软土地基的影响区分析[J].中国港湾建设,2001,(1):26-30.
[5]余湘娟,吴跃东,赵维炳.真空预压法对加固区边界影响的研究[J].水利学报,2002,(9):123-128.
[6]彭吉力,刘汉龙,陈永辉等.真空-堆载联合预压法软基加固对周围环境的影响[J].岩土工程学报,2002,24(5):656-659.
[7]陈远洪,洪宝宁,龚道勇.真空预压法对周围环境影响的数值分析[J].岩土力学,2002,23(3):382-386.
[8]岳红宇,王良国,杨慧.真空-堆载联合预压加固高速公路软基效果分析[J].公路交通科技,2001,18(1):6-9.
[9]张海霞,王保田.真空堆载联合预压效果检验[J].岩石力学与工程学报,2002,21(12):1 873-1 876.
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