落球检测在堤防填土工程质量评估中的应用  

Application of the Falling Ball Test Method in Quality Assessment of Embankment Filling Engineering

作　　者：康浩[1] 王正君[1] 来庆辉 Kang Hao Wang Zhengjun Lai Qinghui(College of Water Conservancy and Electric Power, Heilongjiang University, Harbin, 150086)

机构地区：[1]黑龙江大学水利电力学院,哈尔滨150086

出　　处：《森林工程》2017年第3期116-119,共4页Forest Engineering

基　　金：黑龙江省黑龙江干流堤防工程科学研究实验(HGZL/KY-01);黑龙江省应用技术研究与开发计划引导项目(GZ16B013)

摘　　要：在堤防工程中,堤防填土的力学性质是影响堤防工程整体变形沉降及结构稳定的关键因素。为了更好的监测和控制填筑质量,克服传统监测技术对堤防的损坏,本文介绍了落球检测这种新型快速无损检测技术。通过落球检测技术在堤防工程的现场测试,采用网格布点的测试方法,获得落球检测结果及回弹变形模量分布图,据此分析测区压实程度及均匀性。避免传统方法对堤防的破坏,从而保证了堤防的安全性和使用寿命。结果表明该技术对于评估堤防填土工程的岩土力学特性和均匀性十分有效,不仅快速而且反映直观,后期需进一步的改进和优化,该技术将会更好地广泛应用于堤防工程的质量控制体系中。In the embankment engineering, the mechanical properties of the embankment fill are the key factors affecting deform-ation, settlement and structural stability of the whole embankment engineering. In order to preferably monitor and control the filling quality and overcome the damage to the embankment by traditional monitoring technology, the falling ball test method, a new fast non -destructive testing technology, was introduced and applied in embankment engineering site test. The results of falling ball test and the distribution diagram of the rebound elastic modulus were obtained by using the mesh point method, and thereby the degree of com-paction and uniformity were analyzed. Compared to traditional method, this method avoids the damage to the embankment and thus ensures the safety and service life of the embankment. The results indicated that this method is quite effective for evaluation of the me-chanical properties and the uniformity of geo - material in embankment fill, which is only fast but also intuitive. It would be better widely applied in the quality control system of embankment filling engineering through further improvements and optimization.

关 键 词：堤防填土 落球检测 均匀性 现场测试 

分 类 号：U416.1[交通运输工程—道路与铁道工程]