CN114575328A - 一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法 - Google Patents
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Abstract
本发明公开了一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,涉及岩土工程技术领域。具体是在待处置粉砂中均匀布置循环管网,用配置好的处理液浸透待处理粉砂层,直至饱和,再使用堆载给粉砂加压,并在循环管网中注入热油,加热保压后,卸去压力,管网留在粉砂中即可。通过本发明消除粉砂液化性质具有快速、耐久性好、对环境污染小的特点。
Description
技术领域
本发明属于岩土工程技术领域,更具体地说,是涉及一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法。
背景技术
从上世纪六十年代起,砂土液化问题一直是岩土工程界的热点问题之一。液化是指在外载荷作用下,饱和砂土由于孔隙水压力升高而引起剪切强度丧失和有效应力降低,最终导致砂土表现出类似于流体特征的一种现象。砂土液化包括静载荷引起的静态液化和地震、爆炸以及机械振动等动力荷载引起的振动液化。粉砂液化后引起的大变形所导致的破坏往往比较严重,包括挡土设施侧滑破坏,堤防或坝体边坡流动破坏,地基和道路开裂,建筑物基础及桥梁沉陷等。因此对消除粉砂液化性质的研究就显得尤为重要。
发明内容
本发明所要解决的技术问题是提供一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,能够消除粉砂液化性质,具有快速、耐久性好、对环境污染小等特点。
为解决上述技术问题,本发明所采取的技术方案是:一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,包括以下步骤:
第一步:首先进行处理液的制备,所述处理液由工业用氢氧化钾、磨细石粉或/和粉煤灰、工业用酒精、工业用2,2-二甲氧基丙烷组成;
第二步:在待处置的粉砂中均匀布置循环管网,并用上述处理液浸透待处理粉砂层至饱和状态;
第三步:使用堆载给浸透至饱和状态的粉砂加压至表层压强;
第四步:在循环管网中注入热油用以加热粉砂层;
第五步:加热保压一段时间后,卸去压力,循环管网留在粉砂中即可。
优选地,第一步中制备的所述处理液中的工业用氢氧化钾、磨细石粉或/和粉煤灰、工业用酒精、工业用2,2-二甲氧基丙烷的质量比为(1~1.2):(10~15):(110~130):(0.75~0.9)。
优选地,第二步中在待处置的粉砂层中布置的所述循环管网由钢管或铜管制成。
优选地,第三步中所述堆载对所述粉砂层加压的表层压强为0.2-0.3MPa。
优选地,第四步中加入的热油温度为300℃-350℃。
优选地,循环管网的管间距应保证注入热油后粉砂层中的最低温度介于200℃~250℃之间。
优选地,加热保压的时间为24~48小时。
采用上述技术方案所产生的有益效果在于:本发明能够消除粉砂液化性质,具有快速、耐久性好、对环境污染小等特点。
附图说明
图1是本发明的流程图;
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
如图1所示,
第一步:首先进行处理液的制备,处理液由工业用氢氧化钾、磨细石粉或/和粉煤灰、工业用酒精、工业用2,2-二甲氧基丙烷组成。工业用氢氧化钾、磨细石粉或/和粉煤灰、工业用酒精、工业用2,2-二甲氧基丙烷的质量比为1:12:120:0.8。
第二步:在待处置的粉砂中均匀布置用铜管制成的循环管网,并用上述处理液浸透待处理粉砂层至饱和状态;
第三步:使用堆载给浸透至饱和状态的粉砂加压至表层压强0.3Mpa;
第四步:在循环管网中注入温度为350℃的热油用以加热粉砂层,循环管网的管间距应保证注入热油后粉砂层中的最低温度不能低于200℃。
第五步:加热保压48小时后,卸去压力,循环管网留在粉砂中即可。
以上,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (7)
1.一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,其特征在于,包括以下步骤:
第一步:首先进行处理液的制备,所述处理液由工业用氢氧化钾、磨细石粉或/和粉煤灰、工业用酒精、工业用2,2-二甲氧基丙烷组成;
第二步:在待处置的粉砂中均匀布置循环管网,并用上述处理液浸透待处理粉砂层至饱和状态;
第三步:使用堆载给浸透至饱和状态的粉砂加压至表层压强;
第四步:在循环管网中注入热油用以加热粉砂层;
第五步:加热保压一段时间后,卸去压力,循环管网留在粉砂中即可。
2.根据权利要求1所述的一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,其特征在于,第一步中制备的所述处理液中的工业用氢氧化钾、磨细石粉或/和粉煤灰、工业用酒精、工业用2,2-二甲氧基丙烷的质量比为(1~1.2):(10~15):(110~130):(0.75~0.9)。
3.根据权利要求1所述的一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,其特征在于,第二步中在待处置的粉砂层中布置的所述循环管网由钢管或铜管制成。
4.根据权利要求1所述的一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,其特征在于,第三步中所述堆载对所述粉砂层加压的表层压强为0.2-0.3MPa。
5.根据权利要求1所述的一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,其特征在于,第四步中加入的热油温度为300℃-350℃。
6.根据权利要求5所述的一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,其特征在于,循环管网的管间距应保证注入热油后粉砂层中的最低温度介于200℃~250℃。
7.根据权利要求1所述的一种含石粉粉煤灰处理液的快速消除粉砂液化性质的方法,其特征在于,加热保压的时间为24~48小时。
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CN103233454A (zh) * | 2013-04-07 | 2013-08-07 | 西安理工大学 | 湿陷性黄土地基的砂桩浸水真空预压及注浆处理方法 |
CN103498459A (zh) * | 2013-09-18 | 2014-01-08 | 河海大学 | 一种纤维丝加筋砂土抗液化处理的方法 |
CN108824410A (zh) * | 2018-06-29 | 2018-11-16 | 长江岩土工程总公司(武汉) | 应用于可液化砂土地基的深液化浅处理方法 |
CN112264574A (zh) * | 2020-11-27 | 2021-01-26 | 和县华顺铸造有限公司 | 一种改善覆膜砂结合强度的方法 |
US20210188707A1 (en) * | 2019-12-24 | 2021-06-24 | North Minzu University | Copper slag-fly ash geopolymer, a preparation method thereof, and use thereof |
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CN102557561A (zh) * | 2011-11-23 | 2012-07-11 | 淄博乾耀固结材料有限公司 | 高性能的砂土固结材料及其制备方法和使用方法 |
CN103233454A (zh) * | 2013-04-07 | 2013-08-07 | 西安理工大学 | 湿陷性黄土地基的砂桩浸水真空预压及注浆处理方法 |
CN103498459A (zh) * | 2013-09-18 | 2014-01-08 | 河海大学 | 一种纤维丝加筋砂土抗液化处理的方法 |
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