钻孔灌注桩废弃泥浆絮凝处理工程应用

Engineering Field Application of Waste Slurry Flocculation Treatment for Cast-in-Situ Bored Pile

摘要: 随着我国建筑行业的迅速发展，钻孔灌注桩得到了广泛应用，然而，其所造成的废弃泥浆处理问题也愈发严重，得到了广泛关注。笔者通过大量室内试验发现，相比较于其他泥浆处理方法，运用化学絮凝固液分离法处理废弃泥浆具有泥水分离速度快，后续处理效果好，可有效减少环境污染，节约施工处理成本的特点，本方法化学试剂选择聚丙烯酰胺(阴离子)与生石灰分别加入。本文在室内试验的基础上，于建筑施工工地进行泥浆现场处理，处理效果良好，和室内试验结论基本吻合，有利佐证了此方法的优势与实用性，可以得到应用与推广。

Abstract: With the rapid development of construction industry in China, cast-in-situ bored piles have been widely used; however, the problem of waste slurry treatment is also more and more serious, get a wide attention. Through a large number of indoor experiments, the author found that the chemical coagulation was used in comparison with other methods. Liquid separation is very effective for treating waste slurry. It has the characteristics of fast separation speed and good following treat-ment effect. It can effectively reduce environmental pollution and save the cost of the construction process. The chemical reagent of this method is to select PAM and CaO. This paper is based on the indoor test, and in the construction site of the slurry on the site treatment; the treatment effect is good, and the indoor experimental results are basically consistent, which proves the advantages and practicality of this method, and it can be applied and popularized.With the rapid development of construction industry in China, cast-in-situ bored piles have been widely used; however, the problem of waste slurry treatment is also more and more serious and gets a wide attention. Through a large number of indoor experiments, the author found that the chemical coagulation was used in comparison with other methods. Liquid separation is very effec-tive for treating waste slurry. It has the characteristics of fast separation speed and good following treatment effect. It can effectively reduce environmental pollution and save the cost of the con-struction process. The chemical reagent of this method is to select PAM and CaO. This paper is based on the indoor test, and in the construction site of the slurry on the site treatment; the treatment effect is good, and the indoor experimental results are basically consistent, which proves the advantages and practicality of this method, and it can be applied and popularized.