The invention discloses a kind of non dispersive cement soil which is used as water bottom reinforcement and its construction method. The natural sand, water, water, non dispersing agent and early strong agent are mixed to form the non dispersive cement soil by mixing the natural sand, water, non dispersing agent and early strength agent in the water bottom, and then pouring it into the bottom of water or loading into the water bottom in the bag of soil, forming a continuous bottom reinforcement surface. The invention takes materials locally, and reduces the cost of transportation and storage yard. Sand suction, mixing, pouring or casting bag can be constructed on site on the dredging vessel, and the dredging vessel can be moved continuously for continuous construction, which is convenient and quick. Due to the addition of the early strength agent, the cement soil formed by mixing can be quickly consolidated. Because the non dispersing agent has the ability of underwater non dispersing, it can be sustained at the bottom of the water. Finally, the permanent protective layer of the water bottom is formed.
【技术实现步骤摘要】
用作水底加固的不分散水泥土及其施工方法
本专利技术涉及一种用作水底加固的不分散水泥土及其施工方法。
技术介绍
在我国各大江海湖泊存在大大小小的港口和航道,港口底部沉积物易受扰动泛滥。航道容易泥沙淤积,造成可通行船舶吨位降低,现有的清淤手段基本为疏浚船吸出水底沉积物运走,代价高昂,沉积物堆场浪费土地资源,且由于航道底的沉积物持续沿斜坡坍落,需持续清淤。因此亟需找到合理高效的方法解决港口底部泥沙泛滥和航道淤积问题。
技术实现思路
本专利技术的目的在于提供一种合理高效的方法,通过就地取材、现场拌合、即时加固水底,形成水底永久性保护层,解决港口底部泥沙泛滥和航道淤积问题的用作水底加固的不分散水泥土及其施工方法。本专利技术的技术解决方案是:一种用作水底加固的不分散水泥土,其特征是:将水底吸上来的天然砂或含泥砂、水、不分散剂、早强剂放入搅拌机混合搅拌形成不分散水泥土,材料质量百分比如下:天然砂或含泥砂:55%~85%水泥:8%~30%水:5%~15%不分散剂:0.1%~0.5%早强剂:0.05%~0.2%以上成分的百分比之和为100%,天然砂或含泥砂中含水时外加水比例相应降低。再将其用导管浇至水底或装入土工模袋抛入水底,形成连续的水底加固面。所述不分散剂为纤维素酯、聚丙烯酰胺、聚乙烯醇、天然胶、石蜡乳液、硅粉中的一种或几种;所述早强剂为氯盐、硫酸盐、亚硝酸盐、铬酸盐、三乙醇胺、甲酸钙、尿素中的一种或几种。一种用作水底加固的不分散水泥土的施工方法,其特征是:包括下列步骤:(1)将疏浚船开至需加固水域;(2)疏浚船通过挖斗、射吸、绞吸等方式将水泥沉积的天然砂或含泥砂吸上来;( ...
【技术保护点】
1.一种用作水底加固的不分散水泥土,其特征是:将水底吸上来的天然砂或含泥砂、水、不分散剂、早强剂混合搅拌形成不分散水泥土。
【技术特征摘要】
1.一种用作水底加固的不分散水泥土,其特征是:将水底吸上来的天然砂或含泥砂、水、不分散剂、早强剂混合搅拌形成不分散水泥土。2.根据权利要求1所述的用作水底加固的不分散水泥土,其特征是:是将以下质量百分比的天然砂或含泥砂、水泥、水、不分散剂、早强剂放入搅拌机充分搅拌制得:天然砂或含泥砂:55%~85%水泥:8%~30%水:5%~15%不分散剂:0.1%~0.5%早强剂:0.05%~0.2%;以上成分的百分比之和为100%。3.根据权利要求1或2所述的用作水底加固的不分散水泥土,其特征是:所述不分散剂为纤维素酯、聚丙烯酰胺、聚乙烯醇、天然胶、石蜡...
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