CN101063036A - 一种用于膨胀土治理的化学改良方法 - Google Patents
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土样 | 天然含水量/% | 液限/% | 塑限/% | 塑性指数 | <0.002mm含量/mm | 最大干密度/g·cm-3 | 最佳含水量/% | 自由膨胀率/% | 膨胀力/kPa |
未改良土改良土 | 25.3 | 56.941.1 | 21.723.1 | 35.218.0 | 21.510.6 | 1.861.84 | 16.217.2 | 7732 | 34.88.9 |
土类 | 含水量/% | 干密度/g·cm-3 | 不同垂直压力下的剪应力/kPa | 抗剪强度指标 | 备注 | ||||
25 | 50 | 75 | 100 | c | | ||||
未改良土改良土 | 16.416.9 | 1.861.84 | 198.9232.6 | 225.3242.9 | 238.8276.5 | 248.2292.3 | 187.5207.9 | 32.840.4 | 未饱和未饱和 |
土样名称 | 自由膨胀率/% | 密度/g·cm-3 | 浸泡开始情况 | 浸泡最终情况 |
原状土喷洒1次改性土喷洒2次改性土喷洒3次改性土 | 75352520 | 1.912.022.092.08 | 浸水后试样开裂,3~4分钟开始崩解,半小时后塌落50%以上试样浸水,10分钟后出现裂隙,1小时后裂隙增多,出现土屑滑落现象试样浸水,半小时后出现微量裂隙,1小时后逐渐开裂试样浸水,24h内未见开裂 | 24h后几乎崩解为小团块,塌落90%以上24h后试样塌落量小于50%24h后试样表面起皮,48h后塌落量小于30%72h后,无崩解,无变形,无容裂,整体形状完好 |
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Cited By (16)
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CN104498048A (zh) * | 2014-12-01 | 2015-04-08 | 广西大学 | 膨胀土改良剂及其使用方法 |
CN104514217A (zh) * | 2013-09-27 | 2015-04-15 | 东大建设集团有限公司 | 膨胀土地基改良剂及改良施工方法 |
CN105733600A (zh) * | 2016-01-28 | 2016-07-06 | 广西大学 | 膨胀土改良剂及其使用方法 |
CN105887801A (zh) * | 2016-05-16 | 2016-08-24 | 浙江工业大学 | 一种磷石膏与废弃轮胎橡胶粉联合改良膨胀土地基的方法 |
CN106168549A (zh) * | 2016-07-14 | 2016-11-30 | 三峡大学 | 压实膨润土试样及制备方法 |
CN106635038A (zh) * | 2016-12-21 | 2017-05-10 | 新疆旱海绿洲生态科技有限公司 | 一种化学固化剂及其制备方法和应用 |
CN107189784A (zh) * | 2017-06-01 | 2017-09-22 | 滨州学院 | 一种废旧陶瓷膨胀土改良剂及其使用方法 |
CN107366276A (zh) * | 2017-08-04 | 2017-11-21 | 河海大学 | 一种防止软岩崩解的水玻璃修复方法 |
CN107512722A (zh) * | 2017-07-10 | 2017-12-26 | 中国路桥工程有限责任公司 | 调节黑棉土膨胀性的方法 |
CN108153947A (zh) * | 2017-12-12 | 2018-06-12 | 河海大学 | 一种基于软岩现场状态的崩解特征的描述方法 |
CN110117421A (zh) * | 2019-04-19 | 2019-08-13 | 南京交通工程有限公司 | 一种膨胀土改性剂 |
CN111424485A (zh) * | 2020-04-20 | 2020-07-17 | 中国科学院地质与地球物理研究所 | 一种使用磷石膏与微生物改良膨胀土路堤的设计施工方法 |
CN111790749A (zh) * | 2020-07-29 | 2020-10-20 | 大连理工大学 | 一种使用新型工程材料纳米石墨粉改良膨胀土的方法 |
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CN112811861A (zh) * | 2021-02-23 | 2021-05-18 | 金堂波森特新材料有限公司 | 一种用于膨胀土治理的复合稳定固化剂及使用方法 |
CN113024203A (zh) * | 2021-03-16 | 2021-06-25 | 河南理工大学 | 一种以裂隙粘土为主要原料的免烧砖及其制备方法 |
Family Cites Families (4)
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CN1042253C (zh) * | 1993-11-26 | 1999-02-24 | 新疆石油管理局采油工艺研究院 | 膨润土凝胶封堵剂 |
CN1106440C (zh) * | 1999-06-28 | 2003-04-23 | 吉林大学 | 干旱、半干旱地防渗保水剂 |
CN1244630C (zh) * | 2002-09-29 | 2006-03-08 | 陈玉国 | 钢性粘土无机防水材料 |
CN100349652C (zh) * | 2005-09-05 | 2007-11-21 | 暨南大学 | 用于水处理的膨润土基复合材料及其制备方法 |
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CN104514217B (zh) * | 2013-09-27 | 2016-04-13 | 东大建设集团有限公司 | 膨胀土地基改良剂及改良施工方法 |
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CN112811861B (zh) * | 2021-02-23 | 2022-08-02 | 金堂波森特新材料有限公司 | 一种用于膨胀土治理的复合稳定固化剂及使用方法 |
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