GCL常见问题分析

发布时间：2018-01-31 01:16

本文关键词： GCL 天然膨润土圆织编织布粉状膨润土平整度　出处：《长江科学院院报》2017年02期 　论文类型：期刊论文

【摘要】：钠基膨润土防水毯(以下简称GCL)作为传统压实黏土层的替代者,具有优异的防渗隔离性能,被广泛应用于水利、环保、交通等领域的防水防渗工程。GCL在国内应用已有20多年,但人们对其认识还存在一定的误区,阻碍了GCL的进一步推广应用。为消除人们对GCL的错误认识,加深对GCL的理解,基于多年的GCL生产和研究经验,阐述了编织布平整度、膨润土特性、GCL认知、测试方法等方面存在的问题。研究结果表明:不平整载布不宜用于GCL的生产;以GCL为主防渗层的工程,应该使用粉末型GCL;GCL作为环保工程的次防渗层,是整个防渗系统的重要组成部分;GCL检测标准应增加平整度或漏点检测,并应能反映GCL前期渗透系数。
[Abstract]:Sodium bentonite waterproof blanket (hereinafter referred to as GCLs) as the replacement of traditional compacted clay layer has excellent anti-seepage and isolation performance and has been widely used in water conservancy and environmental protection. The waterproofing and seepage prevention engineering. GCL has been used in China for more than 20 years, but people still have some misunderstandings about it. In order to eliminate the wrong understanding of GCL and deepen the understanding of GCL, based on many years of GCL production and research experience, the smoothness of woven fabric is expounded. The results show that the unevenness cloth is not suitable for the production of GCL; In the engineering of GCL as the main impermeable layer, powder type should be used. As the secondary impermeable layer of environmental protection project, GCL is an important part of the whole anti-seepage system. GCL detection standard should increase flatness or leak point detection, and should reflect the early permeability coefficient of GCL.
【作者单位】：天津中联格林科技发展有限公司;
【分类号】：TU531.7
【正文快照】： 1研究背景钠基膨润土防水毯(GCL)是一种以膨润土为主防渗材料的新型土工合成材料,它是将钠基膨润土颗粒或粉末通过针刺等工艺,均匀固定在2层土工布之间制成的一种毯状防水材料。GCL既有土工材料的密封、隔离和增强作用,又具有优异的防水(渗)性能,是现代土木工程中不可或缺的高

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