摘要
在基坑开挖过程中,深部土体的水平位移监测是一项十分重要的工作。微机电系统(Microelectro-mechanical Systems,简称MEMS)的概念于上世纪五十年代就被提出,但直到近期才被应用于岩土工程的监测领域。通过室内模型试验,采用由加拿大Measurand公司开发和生产的基于MEMS技术的阵列式位移传感器(Shape Accel Array,简称SAA),可以准确地得到基坑内部陈列式位移传感器(SAA)上任意一点的水平位移。探讨了基于MEMS的准分布式阵列式位移传感器的基本原理,提出了一种基坑水平位移监测的新方法。
The monitoring of horizontal displacement in deep soil is an important work during pit excavation. The micro-electro mechanical systems（ MEMS） were proposed in 1950 s and they have been applied into the monitoring of geotechnical engineering recently. Through laboratory model tests,the horizontal displacement at any point on the SAA in foundation pit could be obtained by using the Shape Accel Array（ SAA） which is developed and produced based on MEMS by Measurand Company in Canada. The fundamental principle of SAA based on MEMS is discussed and the new method for monitoring horizontal displacement in foundation pit is proposed.
出处
《工程勘察》
2017年第3期12-16,共5页
Geotechnical Investigation & Surveying
关键词
微机电系统
阵列式位移传感器
基坑水平位移
micro-electro mechanical systems（MEMS）
Shape Accel Array（SAA）
horizontal displacement of foundation pit
