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The tunnel lining concrete maintenance can be divided into two types in terms of technology: water spray maintenance, spray maintenance and curing agent maintenance. Sprinkler maintenance refers to the use of water pipes or sprinklers to directly spray the maintenance water onto the concrete surface for maintenance, which can be operated manually or by spraying […]
During the construction of the secondary lining of the tunnel, lining materials, concrete mix ratios and construction methods should be selected reasonably, and construction experience should be constantly summed up, and the quality awareness of relevant personnel should be improved, and the surface defects of concrete should be controlled to ensure the quality of the […]
Because natural conditions, geological environment, climate conditions, etc. are relatively complex and changeable, the construction difficulty of highway engineering is increased to a large extent. Tunnel engineering is a particularly important project in expressway construction. In recent years, as expressway construction extends to mountainous areas, the number of tunnel projects has also increased greatly. Tunnel […]
The tunnel lining walking system is an important part of the lining trolley. It must be inspected, maintained, operated correctly, and adjusted carefully in use to keep it in a good technical state. 1. Clean and clean in time After the lining trolley operation is completed, the sludge contaminated on the wheels and crawlers should […]
In the process of tunnel construction, the use of concrete for secondary lining is a very important work, and with the development of the times, there are new requirements for concrete secondary lining work, requiring higher quality and shorter construction period. Under the current trend, a good design of lining trolley has become an inevitable […]
Tunnel invert construction has always been an important factor affecting construction progress and quality control. In order to reduce the interference of invert construction on slag loading and slagging machine and tunnel lining trolley, and to achieve the goal of accelerating the construction progress of mechanized parallel operation, high The fully-automatically controlled and fully hydraulic […]
The tunnel lining trolley refers to the special equipment that must be used in the secondary lining of the tunnel construction process. The equipment is mainly used for the concrete lining construction of the inner wall of the tunnel. Today we will learn more about the detailed knowledge of the tunnel lining trolley! Detailed knowledge […]
The generation of tunnel lining erosion affects the overall safety performance of the tunnel lining. Therefore, prevention of tunnel lining erosion should be done well. In fact, the main reasons for the erosion of the tunnel lining are the existence of corrosive media; the existence of easily corrosive substances; the existence and mobility of groundwater. […]
At present, in the tunnel machinery industry, the design scheme and internal structure of the lining trolley are different, but from the perspective of its use, the nature of the general road and railway trolleys is similar. The structure of the tunnel lining trolley consists of a portal frame assembly, a bracket assembly, a template […]
Tunnel lining is very important to the long-term stability and safety of the tunnel. Therefore, in the daily inspection of the tunnel, the inspection of the tunnel lining cracks is a normal work content. The cracks of the tunnel lining mainly include diagonal cracks, circular cracks, longitudinal cracks and network cracks, which are mainly distributed […]
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