摘要
针对燕山水库大坝堆石体的特点,提出了刚度相关法测试堆石体密度的思路。对不同岩性组成、不同颗粒级配、不同密度,分别测量堆石体刚度(K)和参振质量(m),并在同一个测点测量堆石体密度(ρ)。利用刚度相关法建立了燕山水库堆石体密度与附加质量法归一化刚度之间的线性关系式,通过计算相关系数和误差分析,说明附加质量法用于检测燕山水库的堆石体密度是适宜的,密度测试误差可以满足设计要求。
A method to measure the density of rock fill by use of the rigidity correlation method is put forward with regard to the characteristics of the rockfill of Yanshan Reservoir. The rigidity （K）, the vibration mass （m） and the density （ρ ） at the same site are measured according to different rock properties, gradations and densities. A linear relation equation between the rockfill density of Yanshan Reservoir and the normalized dynamic rigidity of additive based on the rigidity correlation method is established. The test results show that the rigidity correlation method used to check the density of rockfill in Yanshan Reservoir is proper, and that the density test error satisfies the design requirements by calculating relevant modulus and error analysis.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2010年第6期987-990,共4页
Chinese Journal of Geotechnical Engineering
关键词
堆石体密度
附加质量法
归一化刚度
误差分析
density of rockfill
additive mass method
normalized dynamic rigidity
error analysis
