黔张常某隧道TSP技术应用研究及BIM模型建立初探
发布时间：2019-02-18 10:16
【摘要】：铁路在修建过程中,为满足规划设计等要求,经常要穿越地质条件复杂的地区。特别是近些年来,随着施工工艺水平的提高及国家整体规划的需要,隧道工程的施工难度越来越大。在多数情况下,由于地质条件复杂多变,仅依靠地质勘查资料无法满足隧道施工要求,导致隧道在修建的过程中经常发生安全事故,诸如坍塌、突水、突泥等。TSP(Tunnel Seismic Prediction)技术就是专门针对隧道工程可能遇到的多种地质灾害问题设计的预报系统。TSP技术采集方便快捷,不影响施工,可有效探测隧道掌子面前方至少100m的范围,多与其他短距离探测方法配合使用。由于其在中长距离探测上的诸多优势,在工程上得到广泛应用。但在实际探测时,现场情况复杂多变及从业人员技术水平有限,导致探测数据的解译结果有时不能满足施工要求。本文针对这类问题,主要做了如下研究:1.通过阐述地震波的分类、传播特性、波动方程、运动学和动力学特性、反射波时距曲线等内容,介绍了 TSP技术的工作原理及地震波在岩石介质中的传播特征。2.以隧道工程中常见的地质病害为基础,建立了断层破碎带、含水溶洞、含水薄层三大类共九个模型,利用有限差分软件Tesseral-2D对模型进行正演模拟,分析每种模型的波场响应特征,横向对比了每类模型的探测效果,分析可能出现误判的情况,为TSP系统的数据解译工作提供理论参考。3.梳理了 TSP系统数据采集、处理和解释整个流程。从原理角度对TSP数据处理的每个步骤进行了详细解释,避免因处理过程不当导致数据解释出现偏差。利用BIM系列软件CATIA初步建立TSP数据的三维地质模型,可视化TSP数据解译结果,可为今后相关工程提供参考。4.以黔张常铁路某隧道为例,针对病害的实测数据结果进行研究,结合数值模拟中相对应的模型,分析TSP在实际探测的效果。最后总结归纳了 TSP超前地质预报的实用性和有效性,并对今后的工作提出建议。
[Abstract]:During the construction of the railway, in order to meet the requirements of planning and design, it is often necessary to cross the complicated areas of geological conditions. Especially in recent years, with the improvement of the construction technology level and the need of national overall planning, the construction difficulty of the tunnel project is becoming more and more difficult. In most cases, because the geological conditions are complex and changeable, only the geological exploration data can not meet the construction requirements of the tunnel, so that safety accidents often occur during the construction of the tunnel, such as the collapse of the tunnel, the process of water and the process of the process. The TSP (Tunnel Seismic Prediction) technology is a kind of forecasting system specially designed for many kinds of geological hazards that may be encountered in the tunnel project. The TSP technology is convenient and fast to collect, does not affect the construction, can effectively detect the range of at least 100m ahead of the tunnel palm surface, and can be used in combination with other short distance detection methods. Because of its many advantages in the long-distance detection, it has been widely used in engineering. However, at the time of actual detection, the situation of the site is complex and the technical level of the personnel is limited, and the interpretation result of the detection data can not meet the construction requirements. In this paper, the following research is done on this kind of problem: 1. By describing the classification, propagation characteristics, wave equation, kinematics and dynamics of the seismic wave, the reflection wave time-distance curve and so on, the working principle of the TSP and the propagation characteristics of the seismic wave in the rock media are introduced. Based on the common geological hazards in the tunnel engineering, nine models of fault fracture zone, water-bearing karst cave and water-bearing thin-layer three-large class are established, and the model is simulated by the finite difference software, Tessal-2D, and the wave field response characteristics of each model are analyzed. The detection results of each kind of model are compared, and the case of misjudgment can be analyzed, and the theoretical reference for the data interpretation of the TSP system is provided. The data acquisition, processing and interpretation of the TSP system are sorted out. Each step of TSP data processing is explained in detail from the principle point of view, and the deviation of data interpretation due to improper handling process is avoided. The three-dimensional geological model of TSP data is set up by using the BIM series software CATIA, and the result of the interpretation of the TSP data can provide reference for future related works. In this paper, based on the measured data of the disease and the corresponding model in the numerical simulation, the effect of TSP on the actual detection is analyzed. Finally, the practicability and effectiveness of TSP advanced geological prediction are summarized, and suggestions for future work are put forward.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U452
[Abstract]:During the construction of the railway, in order to meet the requirements of planning and design, it is often necessary to cross the complicated areas of geological conditions. Especially in recent years, with the improvement of the construction technology level and the need of national overall planning, the construction difficulty of the tunnel project is becoming more and more difficult. In most cases, because the geological conditions are complex and changeable, only the geological exploration data can not meet the construction requirements of the tunnel, so that safety accidents often occur during the construction of the tunnel, such as the collapse of the tunnel, the process of water and the process of the process. The TSP (Tunnel Seismic Prediction) technology is a kind of forecasting system specially designed for many kinds of geological hazards that may be encountered in the tunnel project. The TSP technology is convenient and fast to collect, does not affect the construction, can effectively detect the range of at least 100m ahead of the tunnel palm surface, and can be used in combination with other short distance detection methods. Because of its many advantages in the long-distance detection, it has been widely used in engineering. However, at the time of actual detection, the situation of the site is complex and the technical level of the personnel is limited, and the interpretation result of the detection data can not meet the construction requirements. In this paper, the following research is done on this kind of problem: 1. By describing the classification, propagation characteristics, wave equation, kinematics and dynamics of the seismic wave, the reflection wave time-distance curve and so on, the working principle of the TSP and the propagation characteristics of the seismic wave in the rock media are introduced. Based on the common geological hazards in the tunnel engineering, nine models of fault fracture zone, water-bearing karst cave and water-bearing thin-layer three-large class are established, and the model is simulated by the finite difference software, Tessal-2D, and the wave field response characteristics of each model are analyzed. The detection results of each kind of model are compared, and the case of misjudgment can be analyzed, and the theoretical reference for the data interpretation of the TSP system is provided. The data acquisition, processing and interpretation of the TSP system are sorted out. Each step of TSP data processing is explained in detail from the principle point of view, and the deviation of data interpretation due to improper handling process is avoided. The three-dimensional geological model of TSP data is set up by using the BIM series software CATIA, and the result of the interpretation of the TSP data can provide reference for future related works. In this paper, based on the measured data of the disease and the corresponding model in the numerical simulation, the effect of TSP on the actual detection is analyzed. Finally, the practicability and effectiveness of TSP advanced geological prediction are summarized, and suggestions for future work are put forward.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U452
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