嵌岩灌注桩承载力评估方法研究  

Research on the Evaluation Method of Bearing Capacity of Rock Socketed Cast-in-place Piles

作　　者：翁剑辉 冯炜壕 陈立铭 林武星 游志榕 Weng Jianhui;Feng Weihao;Chen Liming;Lin Wuxin;You Zhirong(Fujian Building Research Institute Co.Ltd.,Fuzhou,Fujian 350108;Fujian Key Laboratory of Green Building Technology,Fuzhou,Fujian 350108;Fuzhou Jiangyin Industrial Zone Development and Construction Co.Ltd.,Fuzhou,Fujian 350309)

机构地区：[1]福建省建筑科学研究院有限责任公司,福建福州350108 [2]福建省绿色建筑技术重点实验室,福建福州350108 [3]福州市江阴工业区开发建设有限公司,福建福清350309

出　　处：《江西建材》2024年第12期260-263,共4页

摘　　要：文中通过低应变普查对桩端性状进行分类,采用钻芯法对分类结果进行了动态调整,最后应用高应变检测并结合统计理论对某工程项目嵌岩灌注桩承载力进行了评估。结果表明,采用低应变法进行普查可以对嵌岩灌注桩的桩端性状进行分类;当低应变法判定桩端性状有疑问时,采用钻芯法进行核验,可实现桩端性状分类的动态调整;高应变法普查性强、可靠度高,结合统计理论可实现对各分类基桩承载力的准确评估。This article classifies the characteristics of pile ends through low strain surveys,dynamically adjusts the classification results using the core drilling method,and finally evaluates the bearing capacity of rock socketed cast-in-place piles in a certain engineering project using high strain testing and statistical theory.The results indicate that using the low strain method for census can reliably classify the pile end characteristics of rock socketed cast-in-place piles;When there are doubts about the pile end characteristics determined by the low strain method,the core drilling method can be used for verification,which can dynamically adjust the classification of pile end characteristics;The high strain method has strong generalizability and high reliability,and combined with statistical theory,it can achieve accurate evaluation of the bearing capacity of various types of foundation piles.

关 键 词：嵌岩灌注桩 承载力评估 高应变法 

分 类 号：TU74[建筑科学—建筑技术科学]