本科毕业论文定稿.doc

材料科学与工程专业本科毕业论文学生姓名：：指导教师：专业：年级：学校： 摘 要 注浆技术是岩土工程学的一个分支，属于地基处理的范畴。随着注浆技术的广泛应用，注浆材料也得到了较大的发展。开发综合性能指标高及成本较低的绿色新型注浆材料是材料界和工程界研究开发的共同课题，许多科研单位都对新型注浆材料进行了研究并取得了一定成果，但涉及硅酸盐/聚氨酯复合新型煤岩注浆加固材料的研究则比较少，对其研究深度还有待于深入。本文通过具体的配方试验，对浆材的凝胶时间及固结强度进行了较为详细的研究，掌握了不同配方下该浆材的凝胶时间及固结强度的影响因素，开发了兼具堵水加固的聚氨酯类注浆材料；文章还通过试验总结得出：实际注浆工作中，应注意对浆液温度的控制，一方面要注意避免由于温度过高使浆液反应过快而产生“暴聚”现象；另一方面如环境温度过低，则要采取相应的升温措施以便降低浆液的初始粘度、加快浆液的反应速度，避免影响后续工期。 关键词：硅酸盐；聚氨酯；注浆；凝胶时间；抗压强度 Abstract Injection Grout，which belongs to Foundation treatment，is a foliation of geotechnical engineering science． Now，we requires the material which has good capability than before．It is our universal task to find the new grouting material ．Numerous graduate schools have made some achievements on the new grouting materials，but it is little which targets the silicates and polyurethane．We should do some research about it in a deep lever．The main content and conclusions are as follow：The author have done some experiments to research the gelatin time about the serum and clarify the gelatin time in different conditions .Author have made some futherly analysis about the factors which affect the gelatin time and the reasons why the adjustment of the gelatin time is 1imited. The author have done some experiments about the consolidation strength of the serum．According to the date of experiments，the author can seize the consolidation strength in different mix and time，and present the relation between it and time at one time．Addition，the experiment and construction practice indicates the following conclusions. In practical grouting work，control of the temperature of the serosity is significant．On the one hand，overheating hence the violent reaction should be avoid，on the other hand，if the temperature is too low，the heating step including lowering the initial viscosity and increasing the reaction velocity should be take so as to avoid delaying the following time limit of the project． Keywords： silicate； polyurethane；injection； the gelatin time； compres