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  •  Tunnel support trolley

    Tunnel support trolley

    The tunnel support trolley is composed of 4 sections, each section is 3M long, the clear distance between sections is 1.5m, and the total length of trolley is 16.5m. The trolley can move in sections on the track structure without unloading and pushing. The support point adopts polyurethane rubber steel core wheel, which can not only ensure the force, but also ensure the convenience of movement and small resistance. The trolley groups (1, 2, 3, 4) are manufactured and hinged to ensure that the supporting trolley can walk in a small radius curve. In the design, the load acting on the pipe piece of the lower tunnel is calculated according to the weight of the shield machine, the characteristics of the rock stratum, the clear distance between the upper and lower tunnels, and the thrust of the shield machine in tunneling,

  •  Steel pipe sheet of tunnel connecting channel

    Steel pipe sheet of tunnel connecting channel

    The steel pipe sheet used for connecting tunnel, also known as special lining ring for tunnel, is installed between two tunnels to connect the two tunnels, which is convenient for maintenance, fire fighting and escape. It is widely used in subway tunnel, highway tunnel and railway tunnel. Because it is designed according to the structure and use requirements of the tunnel, the steel is processed, welded and treated with anti-corrosion. Therefore, it has high strength, easy to install, and the middle connecting passage is easy to dismantle and construct. According to the design requirements, it is divided into half ring and integral ring.

  •  Foreign composite segment

    Foreign composite segment

    Composite segments for metro tunnels in Singapore

  •  Tunnel seismic flexible segment

    Tunnel seismic flexible segment

    He Binchuan has the experience of flexible pipe joint design and manufacture with Southwest Institute of transportation.

  •  Tunnel steel pipe sheet

    Tunnel steel pipe sheet

    It can save labor, improve efficiency, control vibration range, make concrete achieve better workability, and the produced segment has the advantages of less cracks and stable quality.

  •  Tunnel segment mould

    Tunnel segment mould

    Shield machine and segment are two key factors to control the quality of shield tunnel, and the most important factor affecting the quality of segment production is segment steel mold.

  •  Assembled positioning tenon of shield segment

    Assembled positioning tenon of shield segment

    Assembled positioning tenon of shield segment: used for positioning and force transmission between shield segments in rail transit. The finished product is made of high strength nylon modified material, and the main components are PA66 and glass fiber. , The utility model abandons the complicated shield segment design which uses positioning bar or concave convex tenon groove in the prior art. The location of positioning groove is prefabricated on the side (connection surface) of shield segment, and the positioning tenon sleeve is added between two segments for installation limit, which not only ensures the requirements of segment construction assembly limit, but also effectively protects arc-shaped connecting bolts, so as to optimize the design and processing technology of steel mold In addition, steel sleeve is embedded in the positioning tenon sleeve to effectively ensure the construction quality of segment assembly ring.

About xuntou

About

Jiangsu xuntou Machinery Co., Ltd. is a national high-tech enterprise, specializing in the design, manufacture and sales of shield tunnel support trolley, shield segment plastic embedded parts, tunnel steel pipe piece and other products, mainly used in urban rail transit and pipe network construction.

Jiangsu xuntou Machinery Co., Ltd. was established in 2013, formerly known as Changzhou Wujin Nanxiashu global railway accessories factory, designated by the Ministry of railways, and was founded in 1997. At present, the company has more than 100 employees, including 20 engineering and technical personnel. The company, as always, strives to be first-class and contribute to the society by adhering to the enterprise mission of "creating value for customers and achieving employees' dreams"!

In recent years, the company has cooperated with China Railway, China railway construction, China Communications Construction and other large state-owned enterprises, and its products have been supplied to foreign tunnel projects, winning unanimous praise from customers. The company always adheres to the policy of "manufacturing high-quality products, installing excellent projects, winning customer satisfaction and building Jiangsu xuntou brand", and has realized the improvement from quantity coverage to quality improvement. Facing the market with both opportunities and challenges, the company will adhere to the concept of integrity management and fair competition, and create a better future together with customers.

News and information

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Honor and qualification

Honor