Case Study on Pile Testing of a Certain Engineering Project in Karst Areas of Shenzhen
冼丁浩 XIAN Ding-hao；李正东 LI Zheng-dong；叶俊廷 YE Jun-ting
（深圳市房屋安全和工程质量检测鉴定中心，深圳 518000）
（Shenzhen Building Safety and Construction Quality Testing and Appraisal Center，Shenzhen 518000，China）
摘要：以深圳市龙岗区岩溶地区某医院项目检测的工程实践为例，分析灌注桩的各种检测方法的特点，瑕瑜互见。通过超声法、钻芯法、界面钻芯法、单桩静载试验等方法，优势互补，相互验证，有效掌握工程桩施工质量情况，探明桩端持力层岩土性状，分析桩底溶洞对桩身承载力的影响。通过这一案例，为同类型工程的桩基础检测提供参考。
Abstract: Taking the testing data of a hospital project in the karst area of Longgang District, Shenzhen as an example, this paper analyzes the advantages and disadvantages of various testing methods for engineering piles in karst areas. Through methods such as ultrasonic testing, core drilling, interface core drilling, and single pile static load testing, mutual verification can be carried out to effectively grasp the construction quality of engineering piles, explore the rock and soil properties of the bearing layer at the pile end, and analyze the influence of karst caves at the pile bottom on the bearing capacity of the pile body. This case provides reference for pile foundation testing of similar projects.
关键词：岩溶；工程桩检测；界面钻芯；溶洞
Key words: karst；engineering pile testing；interface drilling core；limestone cave
中图分类号：TU473.1 文献标识码：A 文章编号：1006-4311（2024）30-075-04 doi:10.3969/j.issn.1006-4311.2024.30.022
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