工程施工、管理中节能增效几点体会

在土石方工程、河道工程施工以及日常的工程管理中,只要我们善于观察思考,多动脑筋,对产品的用途加以改进或增加简单的附件,实现一个很微小的革新,就会使我们的某项工作的效率产生一个飞跃,达到控制质量加快进度节省投资的目的。下面就工程施工和管理中大家用到或未采用的几种方法加以介绍。     

五极纵轴测深法在黄河丁坝根石探测中的应用

本文通过介绍五极纵轴测深法探测黄河根石试验情况,说明五极纵轴探测根石的有效性,同时从理论上分析了五极纵轴测深法较对称四极测深等方法探测根石有效及分辨率高的原因,以将五极纵轴测深法推向更广阔的应用领域。     

黄河下游滩区安全建设探析

小浪底工程建设成后,可进行综合利用和调控,但特殊情况下黄河下游仍有发生大洪水的可能,滩区安全隐患、依然存在,洪水到来必然使黄河滩区受灾。故应继续深入探讨黄河下游滩区安全建设,为黄河滩区群众免受洪灾之苦,建议采用黄河下游滩区大移民结合重筑堤防方案。     

Integrated,reliable laser system for an 87Rb cold atom fountain clock

We designed, assembled, and tested a reliable laser system for ⁸⁷Rb cold atom fountain clocks. The laser system is divided into four modules according to function, which are convenient for installing, adjusting, maintaining, and replacing of the modules. In each functional module, all optical components are fixed on a baseplate with glue and screws, ensuring the system's structural stability. Mechanical stability was verified in a 6.11g RMS randomvibration test, where the change in output power before and after vibration was less than 5%. Thermal stability was realized by optimizing of the structure and appropriate selection of component materials of the modules through thermal simulation. In the laser splitting and output module, the change in laser power was less than 20% for each fiber in thermal cycles from 5 ℃ to 43 ℃. Finally, the functionality of the laser system was verified for a rubidium fountain clock.     

基坑支护施工技术探析

为了使地下结构在施工过程中的安全,对基坑的侧壁使用支挡给以加固进行保护。本文结合工程实际就基坑支护的施工工艺与控制措施进行叙述,希望能与同行共同探讨、相互学习。     

基于深度学习的高分遥感影像典型地物检测方法应用实践

传统的基于高分辨率遥感影像的典型地物检测方法难以兼顾检测精度、处理速度和自动化程度,而深度学习方法在图像处理领域中的应用为解决上述问题提供了可能.选用RSOD-Dataset数据集,基于TensorFlow深度学习框架,采用Faster R-CNN、YOLOv3和SSD三种经典深度学习目标检测算法,对高分辨率遥感影像数...