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Analysis on the Design of Tunnel Lining Trolley

The tunnel lining trolley is mainly used in the secondary lining process of the tunnel, and its main function is to help the tunnel achieve the required surface shape and size of the construction. The manufacture of tunnel lining trolleys mainly uses steel. Due to the use of steel, the tunnel lining trolley has certain […]

What are the common problems of tunnel lining trolleys?

In the process of constructing the secondary lining of the tunnel, the tunnel lining trolley is a kind of special tunnel lining equipment that must be used. This is to ensure the safety of use after the tunnel is completed. The tunnel lining trolley is very important in the tunnel construction. In order to avoid […]

How to perform the positioning operation of the lining trolley?

In the construction of the tunnel, the positioning of the trolley is a very important step. Before the lining trolley is used in the tunnel for the first lining, the positioning of the trolley must be done well, so that the trolley is aligned with the center line of the tunnel. There is no problem […]

Construction Technology of Hydraulic Formwork Trolley for Tunnel Invert

With the rapid development of tunnel construction technology, the requirements for railway tunnel construction standards are getting higher and higher, especially the requirements for the waterproof and drainage construction of long and large tunnels and the inverted arch construction are constantly increasing. Generally, the inverted arch is fully constructed and the concrete is poured at […]

Full analysis of tunnel construction methods

In the current tunnel construction practice, considering the construction cost and construction speed, the selection sequence of the construction method is: full-section method→step method→circular excavation method with core soil method→intermediate wall method (CD method)→cross middle wall method ( CRD method)→Double-side pilot pit method; from the perspective of construction safety, the order of selection should be […]

How to control the quality of tunnel lining?

Tunnel lining plays an important role in the support of tunnel engineering. It is a permanent support structure built along the periphery of the tunnel body in order to prevent deformation or collapse of the surrounding rock. In actual construction, the quality control of the following links needs to be done. For details, please go […]

Introduction of Safety Technology for Lining Trolley

Lining trolley is a large non-standard mechanical equipment used for secondary lining in tunnel construction. Its main structure is a steel structure combined with plate and beam. It is widely used in the construction of railways, highways and water conservancy and hydropower projects. It is difficult to analyze and calculate the strength and rigidity of […]

Introduction to the Soft Lap Technology of Tunnel Lining Trolley

In order to solve the problem of cracking of tunnel construction joints and the frequently-appearing handover acceptance problem, various construction units have paid a great price to solve this problem. If there is a way to effectively effect the newly poured second lining end during the construction process Protection not only saves a lot of […]

What are the factors that affect the curing effect of tunnel lining concrete?

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 […]

Analysis on the quality control in the secondary lining construction of the tunnel

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 […]