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  本文選題：引漢濟渭　切入點：注漿堵水加固技術　出處：《天津大學》2014年碩士論文　論文類型：學位論文

【摘要】：陜西“引漢濟渭”調水工程秦嶺輸水隧洞段中的越嶺段，是決定整體工期的關鍵線路，但由于受地質構造及節(jié)理裂隙發(fā)育等嚴重影響，在施工期間所帶來的地質災害問題不容忽視，而注漿技術作為地下工程一種實用的技術手段，已在我國推廣應用，但注漿治理工程屬于隱蔽性工程，從一定程度來講，注漿技術仍處于摸索階段，在工程實踐中仍存在很多問題需要解決，如注漿材料的配制、注漿壓力的合理選取等。本文在分析和總結了現(xiàn)有的注漿材料、注漿堵水技術和注漿方法等研究現(xiàn)狀及存在的問題基礎上，采用了數值分析、室內實驗、現(xiàn)場監(jiān)測及物探探測等方法，針對引水隧洞注漿堵水加固技術及應用開展了深入的研究，主要內部包括： （1）總結分析國內外在注漿理論、注漿材料、注漿堵水技術、注漿模擬實驗及現(xiàn)有注漿質量檢測手段等領域的發(fā)展現(xiàn)狀，提出本文在“引漢濟渭”引水隧洞注漿堵水加固研究方法和技術路線。 （2）分析了目前“引漢濟渭”越嶺段引水隧洞單一注漿材料在堵水加固效果較差的原因，結合理想漿液性能特點，對其雙液漿液物理力學性能進行實驗研究，確定了一種流動性、穩(wěn)定性良好、注漿成本較低的優(yōu)化配制雙料漿液，為注漿堵水加固工程順利實施奠定基礎。 （3）針對漿液在裂隙巖體中的劈裂擴展情況，開展了模擬分析和室內實驗研究，弄清了注漿漿液在裂隙巖石內部的流動規(guī)律，得出了巖體發(fā)生劈裂擴展的注漿極限壓力值，為注漿方式的合理設計提供了科學依據。 （4）結合優(yōu)化配制漿液及合理的注漿壓力，，確定了注漿堵水加固在引水隧洞施工中的設計參數、注漿工藝流程以及注漿加固的方式和有效加固范圍，并優(yōu)化選擇出較合理的注漿實施方案。 （5）將本文的研究成果應用于“引漢濟渭”引水隧洞注漿堵水加固工程實踐中，對優(yōu)化配制的雙液材料進行現(xiàn)場注漿方案的實施，并通過對引水隧洞的外觀檢驗、室內實驗、模擬分析、物探探測以及現(xiàn)場監(jiān)測等，進行注漿堵水加固穩(wěn)定性和效果的評價。
[Abstract]:The Yueling section in Qinling water conveyance tunnel section of "diversion from Han to Jiwei" in Shaanxi Province is the key line to determine the overall duration of the project, but it is seriously affected by geological structure and the development of joints and fissures, etc. The geological hazard during construction can not be ignored. As a practical technical means of underground engineering, grouting technology has been popularized and applied in our country, but grouting treatment project is a hidden project, to a certain extent, Grouting technology is still in the groping stage, and there are still many problems to be solved in engineering practice, such as the preparation of grouting materials, reasonable selection of grouting pressure, etc. In this paper, the existing grouting materials are analyzed and summarized. On the basis of the present research situation and existing problems of grouting water plugging technology and grouting method, the methods of numerical analysis, laboratory experiment, field monitoring and geophysical exploration are adopted. In this paper, the technology and application of water plugging and strengthening for diversion tunnel are studied. The main contents are as follows:. 1) summarize and analyze the development status of grouting theory, grouting materials, grouting water plugging technology, grouting simulation experiment and existing grouting quality testing methods at home and abroad. This paper puts forward the research method and technical route of grouting water plugging and strengthening in the diversion tunnel from Han to Jiwei. This paper analyzes the reason why the single grouting material in the diversion tunnel of the diversion tunnel from Han to Ji-Wei is poor in water plugging and reinforcement, and combines with the characteristics of ideal slurry, the physical and mechanical properties of its dual slurry are studied experimentally, and a kind of fluidity is determined. The optimal preparation of double slurry with good stability and low grouting cost lays a foundation for the smooth implementation of grouting plugging and strengthening project. (3) in view of the split propagation of grouting in fractured rock mass, simulation analysis and laboratory experimental study are carried out, and the flow rule of grouting fluid in fractured rock is clarified, and the limit pressure value of grouting is obtained for the split expansion of rock mass. It provides scientific basis for reasonable design of grouting mode. The design parameters, grouting process flow, grouting reinforcement method and effective reinforcement range of grouting water plugging reinforcement in diversion tunnel construction are determined in combination with optimized preparation of slurry and reasonable grouting pressure. And optimize and select a more reasonable grouting implementation scheme. 5) applying the research results of this paper to the practice of grouting plugging and strengthening in the diversion tunnel from Han to Jiwei, and carrying out the field grouting scheme of the optimized double liquid material, and through the inspection of the appearance of the diversion tunnel and the indoor experiment, Simulation analysis, geophysical exploration and field monitoring are carried out to evaluate the stability and effect of grouting water plugging and reinforcement.
【學位授予單位】：天津大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TV672;TV543

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本文編號：1580125