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中文摘要：
结合岩溶地区某高层建筑桩基础工程，对由于持力层较差引起基桩承载力不足的问题，提出钢管混凝土补强处理方案。介绍了钢管桩补强方案的计算依据和计算方法，并对施工工艺进行了总结。高应变检测结果表明，补强方案效果良好，并且具有施工周期短、环境污染小等优点。
英文摘要：
During the construction of pile foundations for a tall building in karst area, the bearing capacity of piles were found to be inadequate due to poor bearing stratum. The authors proposed a reinforcing method using concrete filled steel tubes. This paper introduces theoretical background and the calculation method and summarizes the construction technique. High-strain inspection result shows that this technology obtained good effect and has advantages such as short construction period and little environmental pollution.
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