岩土原位测试及现场监测技术

On Rock-Soil In-Situ Test and On-Site Monitoring Technology

目的研究现代岩土工程中原位测试技术的应用与发展.方法在新的原位测试方法中,利用便携式可变能轻型动力触探仪来测试路基以及软土地基土动阻力变化情况,采用声波测试法测得路基的剪切波速,利用改进后的压力-膨胀量曲线法,进行原位地基土的膨胀力试验.结果原位测试技术应广泛应用现代电子技术、传感器技术和计算机技术的最新成就,使测试自动化、数据采集、数据处理更加智能化,减少人为因素对测试结果的影响.结论对于一些新的应用还未成熟的原位测试方法,要加大科研试验投入,多进行原位测试试验数据积累,并与已有的原位测试手段对比,尽快形成相关规范.

This paper studies the application and development of in-situ test technology in modem geotechnical engineering. In the new in-situ testing method, impetus and resistance changes of subgrade and soft foundation have been tested by portable dynamic penetrometer. The shear wave velocity has been obtained by sonic wave testing. Meanwhile, swelling force tests on in-situ foundation soil have been done by the pressureinflation of quantity relation. Then, it is shown that the latest achievements of modem electronic technology, sensor technology and computer technology should be widely used in in-situ testing technology, which can make test automation, data collection and data processing more intelligent and induce the effect of human factors on test results. It can be concluded that scientific research investment should be increased and more in-situ test data should be accumulated for some new in-situ test methods. Compared with the existed methods, relative standards should be formed as soon as possible.