新意法在國內隧道工程中的應用研究
發(fā)布時間:2018-10-14 20:06
【摘要】:目前國內隧道一般采用的施工開挖方法都是以新奧法為基礎,新奧法在我國應用理論和實踐均比較成熟,但是以新奧法為基礎的施工工法無法兼顧施工安全和施工速度和工程造價,尤其是面對極為困難的應力-應變條件下的隧道施工的幫助不是很大。針對此種情況歐洲一些學者提出了新意法,該方法是建立在新奧法和圍巖自身壓力拱理論基礎上,其核心思想是先超前對巖體進行分類確定超前支護措施及參數,調節(jié)超前核心土剛度和強度控制圍巖變形。新意法在工程造價和工期具有可控性,且具有更高的安全性,最早是運用在歐洲一些國家的大型隧道項目設計中。但新意法在我國的隧道工程中運用較少,理論和實踐不是很成熟,為了將新意法科學合理的推廣到我國的隧道建設中,本文主要介紹了新意法的基本原理及對國內隧道工程中的應用研究,得出了新意法較新奧法的優(yōu)越性。
[Abstract]:At present, the construction and excavation methods commonly used in domestic tunnels are based on the new Olympic method, and the application theory and practice of the new Olympic method in our country are relatively mature. However, the construction method based on the New Olympic method can not take into account the construction safety, construction speed and construction cost, especially in the face of extremely difficult stress-strain conditions of tunnel construction is not very helpful. In view of this situation, some European scholars put forward the new idea method, which is based on the theory of the new Austrian method and the pressure arch of surrounding rock itself. The core idea of the method is to classify the rock mass in advance to determine the measures and parameters of the advance support. The deformation of surrounding rock is controlled by adjusting the stiffness and strength of the core soil in advance. The new method has the characteristics of controllability and safety in the construction cost and construction period. It was first used in the design of large tunnel projects in some European countries. However, the new method is seldom used in the tunnel engineering in our country, and the theory and practice are not very mature. In order to extend the new meaning method to the tunnel construction of our country scientifically and reasonably, This paper mainly introduces the basic principle of the new meaning method and its application in the domestic tunnel engineering, and obtains the superiority of the new meaning method compared with the new Austrian method.
【作者單位】: 中車建設工程有限公司;
【分類號】:U455.4
[Abstract]:At present, the construction and excavation methods commonly used in domestic tunnels are based on the new Olympic method, and the application theory and practice of the new Olympic method in our country are relatively mature. However, the construction method based on the New Olympic method can not take into account the construction safety, construction speed and construction cost, especially in the face of extremely difficult stress-strain conditions of tunnel construction is not very helpful. In view of this situation, some European scholars put forward the new idea method, which is based on the theory of the new Austrian method and the pressure arch of surrounding rock itself. The core idea of the method is to classify the rock mass in advance to determine the measures and parameters of the advance support. The deformation of surrounding rock is controlled by adjusting the stiffness and strength of the core soil in advance. The new method has the characteristics of controllability and safety in the construction cost and construction period. It was first used in the design of large tunnel projects in some European countries. However, the new method is seldom used in the tunnel engineering in our country, and the theory and practice are not very mature. In order to extend the new meaning method to the tunnel construction of our country scientifically and reasonably, This paper mainly introduces the basic principle of the new meaning method and its application in the domestic tunnel engineering, and obtains the superiority of the new meaning method compared with the new Austrian method.
【作者單位】: 中車建設工程有限公司;
【分類號】:U455.4
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