当前位置: X-MOL 学术Adv. Civ. Eng. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Properties and Applications of a New Chemical Grouting Material
Advances in Civil Engineering ( IF 1.5 ) Pub Date : 2020-06-30 , DOI: 10.1155/2020/7191354
Xiaohua Yang 1 , Kunlong Zheng 2 , Lixiao Xu 3 , Nieyangzi Liu 2
Affiliation  

The study investigates a new chemical grout by mixing the main agent, auxiliary agent, catalyst, foam stabilizer, solvent, and water, to treat the distress of railway tunnel. The orthogonal design was used to obtain 16 groups of grout proportion schemes, and reasonable proportion parameters were screened using laboratory and field tests. Additionally, this study included detailed research on the grout performance. The test results showed that the proportion schemes of groups 3, 4, and 15 grout were the most reasonable. In particular, for group 3, the viscosity is 663 MPa·s, the curing time is 119 s, the foaming capacity is 1589%, and the compressive strength is 20.16 MPa. For group 4, the viscosity is 663 MPa·s, the curing time is 137 s, the foaming capacity is 1809%, and the compressive strength is 17.76 MPa. For group 15, the viscosity is 281 MPa·s, the curing time is 98 s, the foaming capacity is 1173%, and the compressive strength is 26.79 MPa. Groups 4 and 15 grouts were used to treat the frost boiling and track bed subsidence in existed railway tunnels. Based on this, field monitoring showed that muddy water became clear water with an average depth of only 4 mm in the drainage ditch and that the irregular subsidence of the track bed was also solved after treatment. According to the aforementioned experimental research and analysis, it is proven that new grout not only exhibits a reasonable solidification time, high strength, and excellent waterproofing and impermeability with no pollution of the environment but also can be produced by a safe and convenient synthesis method. Group 4 is suitable for treating tunnel seepage, group 15 is suitable for structural reinforcement, and group 3 confers the advantages of seepage prevention, leakage stoppage, and reinforcement.

中文翻译:

新型化学灌浆材料的性能与应用

研究通过混合主剂,助剂,催化剂,泡沫稳定剂,溶剂和水研究一种新型化学灌浆,以解决铁路隧道的困境。正交设计用于获得16组灌浆比例方案,并通过实验室和现场测试筛选出合理的比例参数。此外,这项研究包括对灌浆性能的详细研究。试验结果表明,第3组,第4组和第15组灌浆的配比方案是最合理的。特别地,对于第3组,粘度为663MPa·s,固化时间为119s,起泡能力为1589%,抗压强度为20.16MPa。对于组4,粘度为663 MPa·s,固化时间为137 s,发泡能力为1809%,抗压强度为17.76 MPa。对于第15组,粘度为281MPa·s,固化时间为98s,起泡能力为1173%,抗压强度为26.79MPa。第4组和第15组灌浆用于处理既有铁路隧道中的霜冻沸腾和轨道床沉降。在此基础上,现场监测表明,浑水变成了排水沟中平均深度仅为4 mm的清水,处理后还解决了履带床的不规则沉降。根据上述实验研究和分析,证明新水泥浆不仅具有合理的凝固时间,高强度,优异的防水性和不渗透性,而且不污染环境,而且可以通过安全,方便的合成方法生产。第4组适用于处理隧道渗水,
更新日期:2020-06-30
down
wechat
bug