Geotechnical Engineering Investigation of Subway

Subway is short for underground railway, referring to urban rail transport system working underground. While in actual, some lines of subway will be laid ground because of construction environment. The purpose of investigating geotechnical engineering is to ascertain engineering geological condition and hydrogeological condition along the subway and auxiliary project, helping to provide basic data […]

Applicable Strata and Advantages of Hollow Bar Anchor

Generally speaking, hollow bar anchor is suitable for all the strata that retaining wall and soil nail wall and also the prestressed cable bolt can apply to . For the anchoring technology which has drilling operation requirements, drilling is usually the most critical process and directly affect the bearing capacity of the hollow bar. Drilling […]

Several Questions During Self Drilling Rock Bolt Support

Self drilling rock bolt support has many advantages, such as instant bearing, large pretension force, good support effect, low labor strength and low cost, etc. Nowadays, self drilling rock bolt technology has become an effective way to realize high efficiency and production. While during construction process, there are several questions needs to be noticed: 1. […]

Features of Construction Technology in Geotechnical Engineering

As a construction technology in geotechnical engineering, anchor bolt has following several aspects’ features during construction. Carrying out specific improvement measures basing on features and then further improve construction efficiency. 1. Uncertainty. During construction of anchor bolt, geotechnical performance and structural parameters are easy to influenced by environmental condition and site data is gained less, […]

Large Diameter Threaded Rod for Pipe Shed Support

Pipe shed advanced support is an effective reinforcement method through the special geological section in tunnel construction. Large diameter threaded rod has a larger diameter than other common sizes, which is usually used for pipe shed advanced support and micropile. Large diameter threaded rod is applied for constructions of shallow buried parts of tunnel portal, […]