框架预应力锚杆联合微型钢管桩新型支护结构应用
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摘要
建筑施工中建筑施工过程中的多数事故都与基坑支护相关,尤其是深基坑工程施工,往往因为场地狭小、周围土体松散等支护问题越发明显。通过框架预应力锚杆联合微型钢管桩新型支护结构,使问题得到有效解决。基于此对结构的组成和工作机理进行了详细介绍,并讨论了其施工工艺,证明了新型结构的优势。
Most accidents in construction process are related to foundation excavation support,especially in deep foundation excavation construction,because of the narrow site,loose surrounding soil and other supporting problems are more obvious. Through the new supporting structure of frame prestressing anchor combined with micro steel pipe pile,the problem is effectively solved. Based on this,the composition and working mechanism of the structure are introduced in detail,and its construction technology is discussed,which proves the advantages of the new structure.
Most accidents in construction process are related to foundation excavation support,especially in deep foundation excavation construction,because of the narrow site,loose surrounding soil and other supporting problems are more obvious. Through the new supporting structure of frame prestressing anchor combined with micro steel pipe pile,the problem is effectively solved. Based on this,the composition and working mechanism of the structure are introduced in detail,and its construction technology is discussed,which proves the advantages of the new structure.
引文
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[11]邵权,徐学连,徐松,等.深基坑桩锚撑组合支护结构变形影响因素的三维数值分析[J].岩土工程学报,2014,36(S2):87-91.
[12]解磊,董礼.深基坑放坡—桩锚联合支护结构的监测及数值模拟[J].沈阳建筑大学学报(自然科学版),2015,31(2):228-235.
[13]俞海波,王红雨,王卫东,等.排桩与土钉墙联合支护基坑变形数值模拟[J].长江科学院院报,2017,34(3):96-99.
[14]庄超.深基坑框架预应力锚杆微型钢管桩联合支护结构力学特性分析[D].兰州:兰州理工大学,2018.
[2]许宏发,张新平,华瑞平,等.土钉与护坡桩综合结构在软土基坑支护中的应用[J].水文地质工程地质,2002(5):52-54.
[3]伍俊,郑全平,吴祥云.复合土钉支护技术的有限元数值模拟及工程应用[J].岩土工程学报,2005,27(4):388-392.
[4]陆瑞明,赵锡宏,马忠政,等.组合式挡墙的基坑围护非线性的空间设计计算理论和方法[J].土木工程学报,2001,34(6):80-87.
[5]胡瑞,颜海春,蔡灿柳.复合土钉与桩锚联合支护的应用研究[J].建筑施工,2005,27(6):29-31.
[6]胡仲春,任高峰,胡逢春.基于有限元数值模拟的基坑联合支护系统分析[J].地下空间与工程学报,2011,7(S2):1648-1652.
[7]孙铁成,张明聚,杨茜.深基坑复合土钉支护模型试验研究[J].岩石力学与工程学报,2004,23(15):2585-2592.
[8]杨向前.微型桩预应力锚杆复合土钉支护结构受力变形性状模拟研究[D].郑州:郑州大学,2014.
[9]王媛媛,秦四清.土钉与复合土钉支护结构数值模拟对比分析[J].工程地质学报,2006,14(2):271-275.
[10]冯申铎,姜晓光,杨志银,等.“桩(墙)—撑—锚”联合支护技术的工程应用与变形协调探讨[J].岩土工程学报,2012,34(S1):456-460.
[11]邵权,徐学连,徐松,等.深基坑桩锚撑组合支护结构变形影响因素的三维数值分析[J].岩土工程学报,2014,36(S2):87-91.
[12]解磊,董礼.深基坑放坡—桩锚联合支护结构的监测及数值模拟[J].沈阳建筑大学学报(自然科学版),2015,31(2):228-235.
[13]俞海波,王红雨,王卫东,等.排桩与土钉墙联合支护基坑变形数值模拟[J].长江科学院院报,2017,34(3):96-99.
[14]庄超.深基坑框架预应力锚杆微型钢管桩联合支护结构力学特性分析[D].兰州:兰州理工大学,2018.