| 桩基检测方法及其应用(续) |
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| 引用本文： | 张忠苗.桩基检测方法及其应用(续)[J].物探与化探,1990,14(3):209-218. |
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| 作者姓名： | 张忠苗 |
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| 作者单位： | 浙江省物探大队 |
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| 摘 要： | 水电效应法的原理是冲击电流发生装置(电火花振源)在灌满水的桩头上进行高压放电,其放电时间约在10μs内产生可达几吨到几十吨的脉冲作用力作用于桩头使桩产生振动,再用水听器测量桩振动的加速度,测试装置如图13。
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| 关 键 词： | 桩基 检测 静载法 动测方法 |
PILE FOUNDATION INSPECTION METHODS ANDTHEIR APPLICATION |
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| Institution: | Geophysical Prospecting Party of Zhejiang Province |
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| Abstract: | With the setting up of many tall buildings on the soft soil layers in recentyears, pile foundations have been extensively applied. The new technique forlaying foundations requires people to guarantee the quality of every pile and,as a result, a series of economical, rapid and relaible methods for pile founda-tion inspection have been developed. This paper outlines the classification,roles and functions of piles and twelve sorts of pile inspection methods whichinclude theoretical formula, static load, static empirical formula, dynamic for-mula, hammer-blow injection, mechanical impedance, stress wave analysis,hydroelectric effect, ball-blow dynamio inspection, fundamental frequency,acoustic wave and other logging methods and wave velocity dynamic rigidity.The necessity of integrated utilization of various inspection methods is alsopointed out in this paper. |
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