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The characteristics of modern tunnel construction and development are closely related to scientific and technological progress, social and economic development and sustainable development concepts: a. The progress of human science and technology, especially the rapid development of computer technology and information technology, enables the force of the tunnel excavation process to be accurately controlled through […]
The lining grouting construction technology of tunnel lining is suitable for the grouting construction of lining belt mould of passenger dedicated railway line. The radial grouting pipe is pre-buried on the trolley, and the grouting is carried out through the grouting pipe in time after the construction of the second liner is completed 2h. The […]
The working conditions of the tunnel lining trolley are severe and the load is heavy. The experiment proves that the life of the parts of the walking system is the shortest compared with other parts of the lining trolley. Therefore, the walking system must be used and maintained correctly to improve its traffic performance, reduce […]
The tunnel lining trolley walking system, also known as the walking device, refers to the general name of the mechanisms and parts that ensure driving, support the car body, and reduce the bumping and vibration of the lining trolley on various ground driving. It consists of two parts: track propulsion device and suspension device. Its […]
Before the tunnel lining trolley starts lining construction, the tunnel lining trolley must be positioned so that the section size of the tunnel lining trolley is consistent with the required size, and the following common problems should be noted during the construction process. 1. What preparations should be done before the trolley is installed? When […]
The so-called lining refers to the artificially constructed supporting structure, which can be collectively referred to as lining. The tunnel lining can be divided into initial supporting and secondary supporting (secondary lining). Tunnel lining materials should first have sufficient strength, durability, impermeability, corrosion resistance and frost resistance. In addition, from the economic point of view, […]
The design of the tunnel should be based on the overall situation, comprehensively considering the requirements of the overall function of the highway, land resources, ecological environment, and sustainable development, to fully ensure that the main structure of the tunnel (slope body, gate, lining, pavement, etc.) is stable and reliable, avoiding diseases during operation happened. […]
Tunnel cracks are one of the common diseases of tunnel linings. Cracking of linings is manifested in both the primary lining and the secondary lining, of which the secondary lining is the most serious. The distribution of lining cracks is the most on the left side of the lower line, followed by the left side […]
Tunnel lining construction is a key construction content of tunnel engineering, which is related to construction quality and construction safety. So what are the common causes of common problems in tunnel lining construction? What control measures can ensure the quality of tunnel lining construction? The following is an analysis of the main points of tunnel […]
Tunnel lining grouting is to improve the lining stress conditions and meet the waterproof requirements. The construction gap behind the lining ring is filled with cement and other materials. In the soft soil layer, the part disturbed by the tunnel digging has a weakened stability, and the gap needs to be filled in time to […]
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