摘要
中国高面板堆石坝设计理论及筑坝技术已达到世界先进水平,但传统测量手段难以适应300 m级高面板堆石坝安全监测的技术要求,亟需发展新型的高面板堆石坝安全监测技术。对提出的坝体内部水平位移监测分布式光纤监测系统开展了详细的等比尺模型试验研究和原型坝监测试验研究,分析试验研究结果表明该坝体内部水平位移新型监测技术用于300 m级高面板堆石坝最长1000 m的监测断面的沿程水平位移测量,其测量精度通过模型试验和原型试验均得到验证,满足相关规范要求,可以满足高面板堆石坝内部水平位移监测的工作要求。该新型监测技术在土石坝内部水平位移监测工作应用中具备独特特性和优点,是高面板堆石坝内部水平位移监测的一种具有良好应用前景的新型监测技术。
The design theories and dam construction technologies of concrete faced rockfill dam with the height of more than 300 m in China have reached the advanced world level at present. But the traditional measuring methods are not suitable for the safety monitoring of the high concrete face rockfill dam, and the new techniques for safety monitoring of high concrete face rockfill dam are needed. Tests on the proposed technology for horizontal displacement monitoring the dam by using distributed optical fibers are performed through model tests with 1:1 scale and prototype tests. The test result show that the new technology for horizontal displacement monitoring the dam can be used to measure the inner deformation of the dam 300 m in height with the measurement line 1000 m in length. Its measurement accuracy is verified by both the model and the prototype tests, and the relevant regulatory requirements are satisfied. It can meet the work requirements for the internal horizontal displacement monitoring of high concrete face rockfill dam. Applications in internal horizontal displacement monitoring of embankment dam show that the new technology has unique characteristics and advantages, it is good prospect.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2016年第S2期24-29,共6页
Chinese Journal of Geotechnical Engineering
基金
中央级公益性科研院所基本科研业务专项基金项目(Y314009
Y316008)
关键词
高面板堆石坝
内部变形监测
分布式光纤
测量精度
等比尺模型试验
原型试验
high concrete faced rockfill dam
inner deformation monitoring
distributed optical fiber
measurement accuracy
model test with 1∶1 scale
prototype test
