隧道渗漏水病害的影响因素研究

近年来,我国公路隧道得到了蓬勃的发展。调查表明,渗漏水是隧道工程中常见的病害之一,因此隧道渗漏水病害研究成为热点问题。从物理化学作用、降雨以及冻胀三方面入手,通过建立物理化学数学模型,结合单纯形Monte Carlo法求解得出整个系统中反应动力随总自由能变化而变化,并且结合实例说明了统计参数方差较大时反应趋于平衡;并且根据渗漏量以及冻胀力的计算分析可以看出,渗漏量与地下水位和衬砌厚度存在紧密联系,当衬砌后的空洞缺陷尺寸较大时,冻胀力也增大。本研究为隧道渗漏水防治提供借鉴。

Research on Influencing Factors of Tunnel Water Leakage Diseases

In recent years, Chinese highway tunnels have developed vigorously. Investigations show that water leakage is one of the common diseases in tunnel engineering. Therefore, the research of tunnel leakage disease has become a hot issue. The problem is studied from three aspects: physical and chemical effects, rainfall and frost heave. By establishing a mathematical model of physical chemistry, combined with the simplex Monte Carlo method, it is found that the reaction power in the entire system changes with the change of total free energy, and an example shows that the reaction tends to balance when the variance of statistical parameters is large. According to the calculation and analysis of the leakage and frost heave force, it can be seen that the leakage is closely related to the groundwater level and the thickness of the lining. When the size of the cavity defect after lining is large, the frost heave force increases. This research provides a reference for tunnel leakage prevention.