基于复杂网络的盾构施工参数时间序列研究

发布时间：2018-03-12 09:53

本文选题：盾构施工参数　切入点：地质条件　出处：《铁道工程学报》2017年03期 　论文类型：期刊论文

【摘要】：研究目的:地铁盾构施工是一个复杂过程,地质条件对盾构参数有重要影响。为研究地质条件对盾构参数的影响,本文以某市地铁过江隧道为例,对砂性、岩性两种地质条件下的贯入度等4种参数构建复杂网络,分别从微观和宏观两个维度对其进行研究,分析不同地质条件下各种盾构参数的演化规律。研究结论:(1)验证了将地铁盾构参数时间序列转化为复杂网络进行研究的可行性;(2)在不同地质条件交汇处,各参数网络的节点度明显增大,说明盾构系统在此处有较大波动;(3)砂性地质条件下的网络相较于岩质地质条件下更不稳定,且气仓压力对外界变化更为敏感,可用于监测盾构系统的稳定性;(4)本研究可为地层识别提供支持。
[Abstract]:Research purpose: the construction of metro shield is a complex process, and geological conditions have important influence on shield parameters. In order to study the influence of geological conditions on shield parameters, this paper takes the subway tunnel across the river in a certain city as an example to study the sand property. Four parameters, such as penetration degree under two geological conditions of lithology, are used to construct a complex network, which are studied from two dimensions of microcosmic and macroscopic, respectively. The evolution law of various shield parameters under different geological conditions is analyzed. The conclusion of the study is that it is feasible to transform the time series of shield parameters of subway into a complex network to study the evolution of shield parameters at the intersection of different geological conditions. The node degree of each parameter network is obviously increased, which indicates that the shield system is more unstable under the sand geological condition than under the rock geological condition, and the gas chamber pressure is more sensitive to the outside change. It can be used to monitor the stability of shield system.
【作者单位】：华中科技大学工程管理研究所;
【基金】：基金项目:基于复杂网络理论的地铁盾构施工诱发环境风险的时空演化机理与规律研究(51408245)
【分类号】：U455.43

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