含AMPS-NNDMA/AM二元聚合物顶管润滑泥浆的减阻和流变性能研究  

Study on Drag Reduction and Rheological Properties of Pipe-jacking Slurry Containing AMPS-NNDMA/AM Binary Polymer

作　　者：周慧慧 杨伟彪 陈艳萍 ZHOU Huihui;YANG Weibiao;CHEN Yanping

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650000 [2]云南新创新交通建设股份有限公司,云南昆明650000 [3]云南交发咨询有限公司,云南昆明650000 [4]云南省禄丰市交通运输局,云南禄丰651200

出　　处：《城市道桥与防洪》2024年第11期242-246,252,M0023,共7页Urban Roads Bridges & Flood Control

摘　　要：顶管泥浆相当于顶管施工的“血液”,其性能的好坏决定着工程能否顺利进行。为此研究了5种聚合物,包括WRA-97、WRA-70、WRA-61(AMPS-NNDMA聚合物)和WRA-104、WRA-116(AMPS-AM聚合物)掺入后对顶管泥浆减阻性能和流变性能的影响。结果表明:WRA聚合物泥浆的基本性能、减阻性能和流变性能均与聚合物类型、相对分子质量及其结构相关;AMPS-NNDMA聚合物的抗滤失性能优于AMPS-AM聚合物,而AMPS-AM聚合物泥浆比AMPS-NNDMA聚合物泥浆具有更优良的润滑减阻性能;WRA聚合物泥浆具有良好的触变性和剪切变稀性,其流变曲线可以采用幂律流体的本构方程来描述,其流变参数的变化规律与漏斗黏度的变化规律一致。The pipe-jacking slurry is equal to the“blood”of pipe-jacking construction.Its properties determine whether the project can proceed smoothly.Therefore,the effects of five polymers including WRA-97,WRA-70,WRA-61(AMPS-NNDMA polymer)and WRA-104,WRA-116(AMPS-AM polymer)on drag reduction and rheological properties of pipe-jacking slurry after added are studied.The result shows that the basic performance,drag reduction property and rheological property of WRA-polymer slurry are related to the polymer type,relative molecular mass and its structure.The anti-filtration property of AMPS-NNDMA polymer is better than AMPS-AM polymer,but AMPS-AM polymer slurry has better lubrication performance than AMPS-NNDMA polymer slurry.The WRA polymer slurry has the good thixotropy and shear thinning property.Its rheological curve can be described by the constitutive equation of power-law fluid.The change law of its rheological parameters is agreed with the change law of funnel viscosity.

关 键 词：顶管 WRA聚合物泥浆 流变性 润滑减阻性能 

分 类 号：U454[建筑科学—桥梁与隧道工程]