摘要
针对目前地球深部原位环境模拟试验中,大尺寸试样内部温度、压力参数测量困难的问题,设计了一种应用于岩土力学试验机的传感器密封装置。通过将该装置预制在试样内部并将传感器元件密封引出,避免了传感器及后端导线与高温高压环境的直接接触,可实现试样内部温度、压力参数的实时准确测量。验证试验表明,添加该装置后,并未破坏力学试验机三轴腔内部温、压及油液并存的实验环境,既为大尺寸试样力学实验的稳定测量提供了保障,又明显提升了测量数据的准确性和可靠性。鉴于该装置良好的密封性以及耐高温高压工况等特点,稍作改进可用于深海深空等复杂环境中作业,具有广阔的应用前景。
In order to solve the problem that it is difficult to measure the internal temperature and pressure parameters of large size samples in the current in-situ environmental simulation test of deep earth,a sensor sealing device applied to the geotechnical mechanics test system is designed.By prefabricating the device inside the sample and sealing the sensor components,direct contact between the sensor,the back-end wire and the high-temperature and high-pressure environment is avoided,and accurate measurement of temperature and pressure parameters inside the sample can be achieved.The verification test shows that the addition of this device does not disrupt the experimental environment where temperature,pressure,and oil coexist inside the triaxial chamber.The proposed device not only provides a guarantee for stable measurement of large-sized specimen mechanical tests,but also improves the accuracy and reliability of measurement.Due to the good sealing performance and resistance to high temperature and high pressure conditions of the device,slight improvements can be made and it can be used for operations in complex environments such as deep sea and deep space,which has broad application prospects.
作者
尹荣杰
张忠举
李怡航
张朝鹏
刘洋
张茹
张志龙
高恒
YIN Rongjie;ZHANG Zhongju;LI Yihang;ZHANG Zhaopeng;LIU Yang;ZHANG Ru;ZHANG Zhilong;GAO Heng(College of Hydraulic and Hydroelectric Engineering,Sichuan University,Chengdu 610065,China;China Water Resources and Hydropower 10th Engineering Bureau Co.,Ltd.,Chengdu 611830,China;MOE Key Laboratory of Deep Science and Engineering,Sichuan University,Chengdu 610225,China)
出处
《实验科学与技术》
2024年第2期35-40,共6页
Experiment Science and Technology
基金
四川大学“试验技术研究项目”(SCU1068)
四川省自然科学基金(2022NSFSC0005)。
关键词
三轴试验系统
传感器
岩土力学
高温高压
triaxial test system
sensor
geotechnical mechanics
high temperature and high pressure
