| 联合支护技术在深基坑支护中的应用 |
| 投稿时间：2015-01-28 修订日期：2015-06-10 点此下载全文 |
| 引用本文：黄全海,梁宁.联合支护技术在深基坑支护中的应用[J].钻探工程,2015,42(7):72-77.HUANG Quan-hai,LIANG Ning. Combined Support Technology in the Application of Bracing of Deep Foundation Pit[J]. Drilling Engineering, 2015,42(7):72-77. |
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| 中文摘要:郑州市花园路一基坑支护工程，由于场地周边环境的复杂性和基坑深度范围内软弱土体的存在，护坡桩、预应力锚索、花管桩及桩前被动区土体加固等技术的联合应用，确保了17～20 m深基坑壁及周边已有建筑的安全稳定，尤其是采用的高压一次成型锚索施工技术，解决了水位以下粉土及软弱土体成孔困难、锚索质量问题较多的情况。 |
| 中文关键词:深基坑 联合支护 高压一次成型锚索 护坡桩 预应力锚索 花管桩 桩前被动土体加固 |
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| Combined Support Technology in the Application of Bracing of Deep Foundation Pit |
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| Abstract:This paper introduces an engineering of foundation pit support in Zhengzhou. Because of the complex surrounding environment and soft soil in the depth range of foundation pit, the combined application of slope protection pile, pre-stressed anchor cable, perforated pipe pile and passive soil consolidation around pile were used to ensure the safety and stability of 17~20m deep foundation pit wall and the existing buildings. Especially with once-forming anchor construction technology by high pressure, the hole-forming difficulties in silt and soft soil below water table were solved and the anchor cable quality was improved. |
| keywords:deep foundation pit combined support once-forming cable by high pressure slope protection pile pre-stressed anchor perforated pipe pile passive soil consolidation around pile |
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