| 二次高压灌浆锚杆在基坑变形中的应用 |
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| 引用本文： | 赵延林,张春玉,姜封国,景海河.二次高压灌浆锚杆在基坑变形中的应用[J].低温建筑技术,2009,31(7):89-92. |
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| 作者姓名： | 赵延林 张春玉 姜封国 景海河 |
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| 作者单位： | 黑龙江科技学院建筑工程学院,哈尔滨,150027 |
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| 基金项目： | 黑龙江省教育厅资助项目，哈尔滨市科技局资助项目 |
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| 摘 要： | 通过对二次高压灌浆锚杆的灌浆劈裂作用机理及其对提高锚杆承载力作用形式的分析，并结合实际工程的现场原位试验，认识到在富水土层中二次高压灌浆能从根本上改良土体的物理化学性质，在灌浆范围内产生一种新的介质，显著提高了预应力锚杆的承载能力，从而有效控制了基坑支护结构与周边环境的变形。
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| 关 键 词： | 基坑 土层锚杆 二次高压灌浆 承载力 |
APPLICATION OF SECOND HIGH PRESSURE GROUTING SOIL ANCHER IN FOUDATION PIT DEFORMATION CONTROL |
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| ZHAO Yan-lin,ZHANG Chun-yu,JIANG Feng-guo,JING Hai-he.APPLICATION OF SECOND HIGH PRESSURE GROUTING SOIL ANCHER IN FOUDATION PIT DEFORMATION CONTROL[J].Low Temperature Architecture Technology,2009,31(7):89-92. |
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| Authors: | ZHAO Yan-lin ZHANG Chun-yu JIANG Feng-guo JING Hai-he |
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| Affiliation: | (College of Civil Engineering, Heilongjiang Institute of Science and Technology, Harbin 150027, China) |
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| Abstract: | Through analysis of the grout splitting mechanics of second high pressure grouting soil anchor and the action form on raising the carrying capacity of soil anchor,based on the field test of pre-stressed soil anchor.The paper recognizes that the high pressure grouting technique can reform the physical and chemical property of soil radically,bring about a new medium within range of grouting in soil layer full of water to raise the bearing capacity of the pre-stressed soil anchor and control the deformation of supporting structure and surrounding building in foundation pit. |
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| Keywords: | foundation pit soil anchor second high pressure grouting carrying capacity |
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