精品文档---下载后可任意编辑高速公路软基真空-堆载联合预压加固机理及其数值模拟的开题报告摘要随着交通运输业的不断进展，高速公路建设也在不断加快。然而，在建设过程中，往往会遇到地基土质较差或存在沉降等问题，给道路使用和交通安全带来一定的影响。为了解决这些问题，需要实行一定的加固措施。本文基于真空-堆载联合预压加固技术，通过数值模拟探究其机理和优劣。首先，本文介绍了高速公路软基加固的必要性和现有的加固方法的不足之处，进而提出真空-堆载联合预压加固技术的优越性。然后，详细介绍该技术的原理和基本工作过程，并针对不同的软基土质特点，提出了不同的加固措施。最后，利用数值模拟方法，详细分析了该技术在加固过程中的工作机理、优劣和加固效果，以期为实际工程应用提供参考。关键词：高速公路；软基加固；真空-堆载联合预压加固；机理；数值模拟AbstractWith the continuous development of the transportation industry, the construction of highways is also accelerating. However, in the construction process, there are often problems such as poor soil quality or settlement of the foundation, which have a certain impact on road use and traffic safety. In order to solve these problems, certain reinforcement measures need to be taken. Based on the vacuum-piling combined preloading reinforcement technology, this paper explores its mechanism and advantages and disadvantages through numerical simulation.Firstly, this paper introduces the necessity of soft foundation reinforcement of highways and the shortcomings of existing reinforcement methods, and then proposes the superiority of vacuum-piling combined preloading reinforcement technology. Then, the principle and basic working process of the technology are described in detail, and different reinforcement measures are proposed for different soft foundation soil characteristics. Finally, using numerical simulation method, the working mechanism, advantages and disadvantages, and reinforcement effect of the technology in the reinforcement process are analyzed in detail, in order to provide reference for practical engineering application.Keywords: highway; soft foundation reinforcement; vacuum-piling combined preloading reinforcement; mechanism; numerical simulation
