| 絮凝联合真空预压处理吹填土的试验及机理探讨 |
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| 引用本文： | 杨司盟,温智力,刘志明,彭劼.絮凝联合真空预压处理吹填土的试验及机理探讨[J].科学技术与工程,2018,18(27). |
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| 作者姓名： | 杨司盟 温智力 刘志明 彭劼 |
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| 作者单位： | 河海大学岩土力学与堤坝工程教育部重点实验室江苏省岩土工程技术工程研究中心(河海大学) |
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| 摘 要： | 为了探究盐类对吹填土絮凝作用的影响及选择出最适合此类吹填土的絮凝剂种类及添加量,通过沉降柱试验和两组真空预压室内模型对比试验,研究使用絮凝联合真空预压法对含盐吹填土的加固效果,探究盐类对吹填土絮凝效果的影响。试验结果表明,非离子型聚丙烯酰胺能对吹填土泥浆起到有效的絮凝作用;添加絮凝剂能够缩短真空预压完成的时间;相同条件下,添加絮凝剂会改善土样加固效果并提高真空预压作用的均匀性。
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| 关 键 词： | 真空预压 絮凝剂 吹填淤泥土 沉降柱 盐类 |
| 收稿时间： | 2018/3/30 0:00:00 |
| 修稿时间： | 2018/5/27 0:00:00 |
Experimental and Mechanism Study onTreatment of Dredger Filling with Flocculation and Vacuum Preloading |
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| Yang Simeng,Wen Zhili,Liu Zhiming and.Experimental and Mechanism Study onTreatment of Dredger Filling with Flocculation and Vacuum Preloading[J].Science Technology and Engineering,2018,18(27). |
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| Authors: | Yang Simeng Wen Zhili Liu Zhiming and |
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| Institution: | Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University;Jiangsu Research Center for Geotechnical Engineering Technology (Hohai University),Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University;Jiangsu Research Center for Geotechnical Engineering Technology (Hohai University),Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University;Jiangsu Research Center for Geotechnical Engineering Technology (Hohai University), |
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| Abstract: | By means of settlement column test and comparison test of two sets of vacuum preloading laboratory models, the effect of flocculation and vacuum preloading on the reinforcement of salt dredged fill soil was studied, and the effect of salt on the flocculation effect of dredged fill soil was studied. Get the flocculants suitable for salt dredging and the amount of such flocculants added. The results show that NPAM can effectively flocculate dredged mud; adding flocculant can shorten the completion time of vacuum preloading; adding flocculant will improve the soil-reinforcement effect and improve uniformity of vacuum preloading under the same conditions. |
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| Keywords: | vacuum preloading flocculant blowing silt settling column salt |
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