论文部分内容阅读
环氧材料目前已越来越普遍地用于修补各类水工建筑物。由于其凝固前的流动性和易粘抹浆工具的特性,在修补建筑物侧墙和顶部时,通常需要立模。这不但要消耗木材和增加施工费用,而且,对于一些难于立模的部位(如修补较小管径的涵管裂缝),就无法施工。为了解决这一问题,我们在石牛滩水库输水管的补强中采用了无模施工的新工艺,主要是利用环氧材料在较高温度下粘性低和固结快的两个特点,适当提高环氧基液和抹浆工具的温度,从而达到环氧材料快凝结和只粘建筑物不粘抹浆工具的目的,实现无模施工。石牛滩水库输水管裂缝9条,最宽的有65毫米。由于其内径仅0.8米,不便立模补缝,采用无模施工工艺补强后,已运行五年,所补环氧砂浆完好无损,效果良好。现将无模施工工艺介绍如下:
Epoxy materials are now more and more commonly used to repair various types of hydraulic structures. Due to their fluidity prior to solidification and the characteristics of an easy-to-apply wiping tool, standing molds are often required when repairing side walls and tops of buildings. This not only consumes wood and increases construction costs, but also can not be applied to some difficult-to-mold parts such as culvert cracks for smaller pipe diameters. In order to solve this problem, we adopted a new process of moldless construction in the reinforcement of the Shixiutan Reservoir. The main purpose is to make use of the two characteristics of low viscosity and fast consolidation of epoxy materials at higher temperatures. Appropriate Improve the temperature of the epoxy liquid and the wiping tool so as to achieve the purpose of quick setting of the epoxy material and sticking the building to the non-stick wiping tool and realize the moldless construction. Shek O Tan Reservoir hose cracks 9, the widest 65 mm. Due to its inner diameter of only 0.8 meters, it is inconvenient to mold the stitching. After using the moldless construction technology to reinforce it, it has been operating for five years and the epoxy mortar made up is intact and the effect is good. Now no-mold construction technology are as follows: