Experimental and Numerical Study of the Effect of Surround Protection Technique on the Strain Measurement for Offshore Jacket Platform

For strain measurement on offshore jacket platform in deep water, waterproof of strain foil is always an important issue, especially, due to the high pressure in deep water. The waterproof is difficult in two places, one is between the matrix structure and the protection structure, and another is between the lead wires and the protection structure. The surround protection technique discussed in this paper is conventional and ideal, and can be operative for a long time, up to five years. In this method, a metal case and tube is added on the local position, which increases the local rigidity, but the effect on the measurement of strain is not well studied. In this paper, the effect of the surround protection technique on the strain measurement is studied by using numerical and experimental methods, and the results show that the measurement error is well in the range permitted by engineering practice.

一种新型硫酸镁湿敷防水套的研制与应用

目的:研制新型硫酸镁湿敷防水套,观察其在输液渗出中应用效果。方法:将60例输液渗出患者按随机数字表法分为观察组和对照组各30例,对照组采用传统硫酸镁湿敷法,观察组在常规湿敷后采用自制新型湿敷防水套,比较2组患者输液渗出部位红肿消退时间、舒适度以及护士工作量情况。结果:观察组输液渗出红肿消退时间明显短于对照组,差异有统计学意义(P<0.05);观察组舒适度高于对照组(P<0.05);观察组明显减轻护士工作量(P<0.05)。结论:新型硫酸镁湿敷防水套用于输液渗出湿敷效果较好,操作方便,值得推广。

桥梁水下基础施工钢套箱防水方法

桥梁水下基础施工防水方法较多，当施工钻孔桩或扩大基础时，可以不用钢板桩围堰，而代之以轻便得多的钢套箱。本文较为系统的介绍了钢套箱的设计、制作、安装、防水等施工工艺以及其适用范围、注意事项等，并进行了效益分析，列举了工程应用实例。

冲锋衣防水透湿功能评价方法研究

研究了冲锋衣防水、透湿性能的评价方法,并对市场上的冲锋衣进行了实测分析,结果表明:冲锋衣防水、透湿性能可按GB/T21295—2014测试和评价;冲锋衣产品鱼龙混杂,多数不具备防水透湿功能;邦迪斯门淋雨法适用于评价织物的动态拒水性,并与耐静水压、表面沾水等级正向相关;覆膜产品透湿性能好于涂层产品。

高原地区大型储罐罐底边缘板防水新方式

兰州高原地区具有紫外线强、风沙大、空气干燥、昼夜温差大等环境特点，常规的储罐边缘板防水方式经常出现脱落、老化、开裂等问题。针对此种环境条件，研究设计出由矿脂底漆、矿脂胶泥、矿脂高温防腐油带（耐80℃）＋高密度聚乙烯外护结构组成的特殊矿脂带罐底边缘板防水方式，这种新方式具有耐温、耐水、抗风沙、抗紫外线、抗酸碱等优良性能。详细描述了该防水方式从基底处理、涂刷底漆、涂敷矿胶泥、贴覆矿脂带到安装高密度聚乙烯防护夹克的施工步骤及操作要点，在实际应用中取得了较好的效果。

钢套钢蒸汽管道直埋过河的设计

结合工程实例,探讨了在钢套钢蒸汽管道直埋过河设计中应注意的关键问题——热补偿、防水、抗浮、排水、排潮、焊接检验,提出了今后应进一步研究的问题。