宽桩群监测案例 I 部分:地质、单桩分析和测试以及监测数据

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS
Stephen Buttling, Bengt H. Fellenius, Naruedol Pinijpol
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引用次数: 0

摘要

本文是关于一个宽桩群的两篇论文中的第一篇。在这一部分中,介绍了场地的地质情况和岩土工程模型,以及单桩的设计、静载试验分析和一些动态试验。对由 399 根钻孔灌注桩组成的桩基的响应进行了长达九年的监测,这些桩基在一个共同的垫层上支撑着三座 70 层的塔楼。记录包括 3.5 倍持续荷载的静态加载试验结果、四根桩的动态试验结果,以及在施工期间及其后九年对 15 根桩的荷载发展和 40 个点的沉降进行的监测。施工结束时,周边桩基承受的塔楼荷载大于内部桩基,垫层平均沉降 90 毫米。在监测期结束时,由于总体下沉,垫层的平均沉降量增加了 50 毫米。沉降的大部分原因被认为是桩趾水平以下土层的压缩。后续论文将介绍宽桩群的分析和设计,以及单桩和宽桩群静力加载试验的数值分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A case history of monitoring a wide pile group Part I: geology, single pile analysis and testing, and monitoring data
This is the first of two papers on a wide pile group. In this part, the geology and a geotechnical model of the site are presented, along with the design of a single pile, analysis of a static loading test, and some dynamic tests. The response of the piled foundations comprising 399 bored piles supporting three 70-storey towers on a common mat was monitored over nine years. The records consist of results of a static loading test to 3.5 times the sustained load, dynamic tests of four piles, and monitoring the development of load in 15 piles and settlement of 40 points during construction and nine years following. At end of construction, the perimeter piles received more load from the towers than did the interior piles and the mat settled on average 90 mm. At the end of the monitoring period, due to the general subsidence, the average settlement of the mat had increased by 50 mm. Most of the settlement is considered to originate from the compression of the soil layers below the pile toe level. A subsequent paper will present the analysis and design of the wide pile group, and the numerical analysis of the static loading test on a single pile and of the wide pile group.
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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