论文部分内容阅读
伸缩缝填料及其施工工艺,是渠道防渗中必须解决而目前还没有很好解决的问题。实际工程中,对渠道已铺衬防渗塑膜的,一般用低标号水泥砂浆填平伸缩缝,以求节省费用;对未铺衬防渗塑膜,有的也照此处理,结果因热胀冷缩或不均匀沉陷而导致防渗破坏。 《渠道防渗工程技术规范》SL18-91推荐使用的伸缩缝填料为焦油塑料胶泥,并采用热灌法施工,即将制好并保持在110℃的焦油塑料胶泥灌入缝内。它的明显缺陷是施工技术较复杂,因为要将组成材料按规定的重量比配合(或采用焦油塑料胶泥的制成品),加热至一定温度方可使用;而且在防渗渠道是
Expansion joints filler and its construction technology, is the channel seepage control must be addressed and not yet a good solution to the problem. The actual project, the channel has paved the impermeable plastic film, the general use of low-grade cement mortar filled expansion joints, in order to save costs; not paved impermeable plastic film, and some also follow this treatment, the result of heat Expansion Lengthening or uneven subsidence and lead to anti-seepage damage. The technical specifications for canal seepage control engineering SL18-91 are recommended for the expansion joint tar tar plastic clay, and the hot irrigation method of construction, the system will be made and maintained at 110 ℃ tar plastic grout into the seam. Its obvious flaw is the construction technology is more complex, because the composition of the material to be the ratio of the weight ratio (or the use of plastic products made of tar plastic), heated to a certain temperature before use; and impervious channels