玄武岩纤维增强塑料锚杆设计及应用研究

作者：李振海

作者简介：

李振海，高级工程师，E-mail:391893075@ qq. com

作者单位：

陕西华山建设集团有限公司，陕西西安 710016

基金项目：

∗ 2021 年陕西省住房城乡建设科技计划项目：大跨径双曲线变截面钢箱梁顶推施工关键技术研究（2021-K20）

摘要：

受地区地质条件影响，部分高层民用建筑在施工期间或竣工后，因土质条件或地下水位变化面临地基沉降或上浮问题。为此，提出了基于玄武岩纤维增强塑料的抗浮扩体锚杆方案，并通过试验研制了相应锚杆，基于土层勘察结果在施工点位进行钻孔作业。结果表明，玄武岩纤维增强塑料锚杆在抗浮工程中每米成本和总使用量均低于普通钢锚杆，总投资 373.56 万元，降低成本 225.72 万元；其总抗浮力达 456200kN,远高于普通抗浮锚杆，显著改善了地下室整体或局部上浮状况。

关键词：高层建筑；地下室；扩体锚杆；抗浮；试验

English：

Due to the influence of regional geological conditions, some high-rise civil buildings face theproblem of foundation settlement or floating due to soil conditions or groundwater level changing duringconstruction or after completion. To this end, a scheme of anti-floating expanding anchor rod based onbasalt fiber reinforced plastic is proposed, and the corresponding anchor rod through experiments isdeveloped. Based on the results of soil layer investigation, drilling operations were carried out at theconstruction point. The results show that the cost per meter and total usage of basalt fiber reinforcedplastic anchor rod in anti-floating engineering are lower than those of ordinary steel anchor,with a totalinvestment of 3.7356 million yuan and a cost saving of 2.2572 million yuan. The total anti-floatingcapacity of the anchor is 456200kN,which is much higher than that of the ordinary anti-floating anchorrod, and significantly improves the overall or local floating situation of the basement.

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试验研究 > 2025年 第卷 第08期