Reducing noise from tunnel lining equipment is crucial for worker health and safety, environmental compliance, and maintaining good relations with nearby communities. Noise in tunnels is often amplified due to the confined space and hard, reflective surfaces. Here’s a breakdown of strategies, following the hierarchy of controls (elimination/substitution, engineering controls, administrative controls, СИЗ). How to Reduce Tunnel […]

Customizing a tunnel lining trolley (also known as a formwork traveller or gantry) is a complex engineering process, essential for ensuring the trolley perfectly matches the specific requirements of a particular tunneling project. Standard, off-the-shelf trolleys rarely fit unique tunnel geometries, geological conditions, or construction methodologies. Customized Tunnel Lining Trolley 1. Understanding the Need for […]

Туннельные тележки подкладка, also known as tunnel formwork systems or tunnel shuttering machines, are essential equipment used for in-situ concrete lining in tunnel construction. Depending on tunnel structure, размер, and construction methods, tunnel lining trolleys can be classified into several types. These are large, mobile structures used inside tunnels to support the formwork for cast-in-place concrete […]

стальная конструкция

To prevent corrosion in steel structures, a multi-faceted approach is essential, addressing design, material selection, surface preparation, and protective coatings. How to Prevent Corrosion in Steel Strcture Design Considerations Minimize Moisture Traps: Design details should prevent water accumulation and allow for drainage. Inclined surfaces, drainage holes, and avoiding sharp edges can help. Ensure Adequate Ventilation: Promote […]

стальная конструкция

Repairing weld cracks in steel structures is a critical task that requires careful planning, execution, and inspection to ensure the structural integrity is restored and the crack doesn’t return. This is a job for critical structures and should ALWAYS be performed by qualified welders following approved procedures under the supervision of experienced engineers or inspectors. Repairing Cracks […]

стальная конструкция

Designing steel building frames is a complex engineering task that requires specialized knowledge of structural mechanics, material science, relevant building codes, and analysis software. This process MUST be performed by a qualified and licensed Structural Engineer. This guide provides an overview of the steps involved, not a substitute for professional engineering services. Customized Steel Building Frames Phase […]

стальная конструкция

Steel structure construction is a widely adopted method in modern architecture and engineering due to its strength, долговечность, and efficiency. From high-rise buildings and industrial warehouses to bridges and stadiums, steel provides a versatile solution for a wide range of construction needs. The steel structure construction process involves a series of systematic steps that ensure the […]

поворотный подшипник

Flange slewing bearings are robust components, but they can experience problems over time. Here are some common issues and their solutions. Flange Slewing Bearing Common Problems and Solutions 1. Irregular Rotation or Jamming: Проблема: The bearing rotates unevenly or gets stuck, even without a load. This could be due to the ring becoming out of round […]

поворотный подшипник

Adjusting the clearance of a slewing bearing is crucial for ensuring smooth operation, reducing wear, and extending its service life. The process varies depending on the bearing type (Одно рядовой мяч, Двойной мяч, or cross-roller) and the manufacturer’s specifications. Slewing Bearing Clearance Adjustment Method 1. Initial Assessment Before adjusting the slewing bearing clearance, it’s important to assess the […]