工程废弃泥浆压滤改良试验研究  

The experimental research on pressure filtration improvement of engineering waste mud

作　　者：李青山 昝劲 张涵 邹谭 Li Qingshan;Zan Jin;Zhang Han;Zou Tan(China Railway Second Group Co.,Ltd.,Chengdu Sichuan 610000,China;School of Civil Engineering,Chongqing University,Chongqing 400045,China;Chongqing University Industrial Technology Research Institute,Chongqing 400039,China)

机构地区：[1]中铁二局集团有限公司,四川成都610000 [2]重庆大学土木工程学院,重庆400045 [3]重庆大学产业技术研究院,重庆400039

出　　处：《山西建筑》2024年第18期19-23,共5页Shanxi Architecture

基　　金：中铁二局集团有限公司城通分公司科技项目(ZTEJ-CTKJ-LFHD-20220001)。

摘　　要：以某核电站隧道机组在盾构施工过程中产生的废弃泥浆作为研究对象,通过压滤试验探究了工程废弃泥浆的物理性质及压滤性能,分析了添加不同比例CaO及Na 2SiO 4和CaCl 2组合溶液的废弃泥浆压滤效果,结果表明,同比例下添加CaO的泥浆压滤速度优于组合溶液,但CaO增大了滤液的pH及施工效率和成本,而组合溶液则能够满足工程需要且避免这些问题。Taking the waste mud generated during shield tunneling construction of a nuclear power plant tunnel unit as the research object,this paper explored the physical properties and pressure filtration performance of engineering waste mud through the pressure filtration tests,analyzed the pressure filtration effect of waste mud with different proportions of CaO and Na 2SiO 4 and CaCl 2 combination solutions,the results showed that under the same proportion,the mud pressure velocity of CaO was better than that of the combination solution,but CaO increased the pH of the filtrate,increased the construction efficiency and cost,while the combination solution could meet engineering needs and avoid these problems.

关 键 词：工程废弃泥浆 压滤 泥饼 添加剂 

分 类 号：TU502[建筑科学—建筑技术科学]