不同防护形式对于土质边坡雨水入渗的试验研究
发布时间：2018-08-31 08:33
【摘要】：近年来随着我国高速公路建设的快速发展,国家越来越重视生态防护的研究,但是由于我国起步较晚,生态防护研究及植被恢复体系仍远远跟不上实际工程的需求。造成了高速公路工程建设的诸多问题,严重的制约了我国高速公路建设的快速发展。为了解决这种困顿的局面,我国加大了生态防护及植被恢复体系的研究力度。生态防护及其相关的理论研究成了边坡防护的新趋势。众所周知,强降雨冲刷及入渗经常是造成边坡破坏的主要因素。在本文的研究中,将采用室内模拟试验的方式,研究面流冲刷入渗对于边坡影响；首先本文通过查阅大量的文献了解总结了前人对于边坡雨水入渗的研究,进而提出了四种新型的生态防护,即：土工布防护结构、水泥砂浆防护、短管防护结构、草绳防护结构,并详细介绍了四种防护的结构形式及抗冲刷机理。然后通过采用试验装置模拟边坡,并在边坡上铺设四种新型的防护形式,再利用面流装置冲刷边坡,按要求取边坡内土体测含水率,将所得的数据进行统计并绘制含水率等势线,分析研究不同防护形式对于边坡的影响。最后选取水泥砂浆防护进行野外试验,通过野外试验验证水泥砂浆防护的抗冲刷及入渗的效果,并观察其对于植被生长的影响,同时对该种防护的施工工艺进行了探索,在结合其他的传统防护施工工艺的基础上,研究水泥砂浆防护的施工工艺及细则,为其在以后工程上的应用提出借鉴与参考。
[Abstract]:In recent years, with the rapid development of highway construction in China, the country pays more and more attention to the study of ecological protection. However, because of the late start of our country, the research of ecological protection and vegetation restoration system are still far from keeping up with the demand of actual projects. It has caused many problems in highway engineering construction and seriously restricted the rapid development of highway construction in China. In order to solve this difficult situation, the study of ecological protection and vegetation restoration system has been strengthened. Ecological protection and related theoretical research have become a new trend of slope protection. It is well known that heavy rainfall erosion and infiltration are often the main factors causing slope failure. In the study of this paper, indoor simulation tests will be used to study the impact of surface flow erosion infiltration on slope. Firstly, this paper summarizes the previous research on slope Rain Water infiltration by consulting a large number of documents. Four new types of ecological protection, namely, geotextile protection structure, cement mortar protection, short pipe protection structure and grass rope protection structure, are put forward, and the four types of protection structure and anti-scour mechanism are introduced in detail. Then the slope is simulated by the test device, and four new protection forms are laid on the slope. Then the slope is scoured by the surface flow device, and the soil moisture content is measured according to the requirements. The influence of different protection forms on slope is analyzed and studied by statistics and drawing water content isobaric line. Finally, select cement mortar protection for field test, through field test to verify the effect of cement mortar protection against erosion and infiltration, and observe its effect on vegetation growth, and explore the construction technology of the protection. On the basis of other traditional protective construction techniques, this paper studies the construction technology and detailed rules of cement mortar protection, and puts forward reference and reference for its application in future projects.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.14
本文编号：2214458
[Abstract]:In recent years, with the rapid development of highway construction in China, the country pays more and more attention to the study of ecological protection. However, because of the late start of our country, the research of ecological protection and vegetation restoration system are still far from keeping up with the demand of actual projects. It has caused many problems in highway engineering construction and seriously restricted the rapid development of highway construction in China. In order to solve this difficult situation, the study of ecological protection and vegetation restoration system has been strengthened. Ecological protection and related theoretical research have become a new trend of slope protection. It is well known that heavy rainfall erosion and infiltration are often the main factors causing slope failure. In the study of this paper, indoor simulation tests will be used to study the impact of surface flow erosion infiltration on slope. Firstly, this paper summarizes the previous research on slope Rain Water infiltration by consulting a large number of documents. Four new types of ecological protection, namely, geotextile protection structure, cement mortar protection, short pipe protection structure and grass rope protection structure, are put forward, and the four types of protection structure and anti-scour mechanism are introduced in detail. Then the slope is simulated by the test device, and four new protection forms are laid on the slope. Then the slope is scoured by the surface flow device, and the soil moisture content is measured according to the requirements. The influence of different protection forms on slope is analyzed and studied by statistics and drawing water content isobaric line. Finally, select cement mortar protection for field test, through field test to verify the effect of cement mortar protection against erosion and infiltration, and observe its effect on vegetation growth, and explore the construction technology of the protection. On the basis of other traditional protective construction techniques, this paper studies the construction technology and detailed rules of cement mortar protection, and puts forward reference and reference for its application in future projects.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.14
【参考文献】
相关期刊论文 前2条
1 林鲁生,蒋刚,刘祖德,白世伟;膨胀土强度特性及其边坡抗剪强度参数取值方法初探[J];广东水利水电;2002年01期
2 周群华;邓卫东;;植物根系固坡的有限元数值模拟分析[J];公路;2007年12期
，本文编号：2214458
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