At the scene, it is generally considered that the drill holes are 150mm anchors, generally they have deep holes, thick steel bars, and prestressing. The soil nails are generally short, the hole diameter is 100mm, and only one steel bar is placed. However, what is the difference between anchors, anchor cables, soil nails and anchor pipes? I don`t know the classmates.
Anchor: A member that transmits tension to a stable rock formation. When a steel strand or a high-strength steel wire bundle is used as the rod material, it may also be referred to as an anchor cable. - "Technical Specifications for Building Slope Engineering" GB50330-2002
Anchor cable: When the anchor rod body is made of high-strength steel strand, it can be called anchor cable.
Soil anchor: A bolt anchored in a soil layer. - "Technical Specifications for Building Slope Engineering" GB50330-2002
A tension rod body composed of a steel bar or a steel strand disposed in a borehole and extending into a stable soil layer at the end and a grout in the hole. - "Technical Regulations for Building Foundation Pit Support" JGJ 120-99
Rock bolt: A bolt anchored in a rock formation. - "Technical Specifications for Building Slope Engineering" GB50330-2002
System anchor: In order to ensure the overall stability of the slope, the anchor group is arranged in a certain format on the slope. - "Technical Specifications for Building Slope Engineering" GB50330-2002
In order to stabilize the surrounding rock as a whole, a group of anchors arranged in a certain pattern on the periphery of the tunnel. --《Technical Specification for Anchor Shotcrete Support》GB50086-2001
Anchoring: Engineering measures to reinforce rock mass using anchors anchored in the surrounding rock or rock slope of the cavern. "Basic Terminology Standard for Geotechnical Engineering" GB/T 50279-98
Anchor retaining wall: cement rod or multi-strand wire rope is anchored in the rock as a tensile member to keep the wall stable and retain the retaining wall of the soil. "Basic Terminology Standard for Geotechnical Engineering" GB/T 50279-98
Soil nailing wall: The support structure consisting of the soil and the protective surface of the side wall of the foundation pit reinforced with soil nails. - "Technical Regulations for Building Foundation Pit Support" JGJ 120-99
Soil nail: It is based on the principle of the New Austrian tunnel law. In the slope formed by natural slope or excavation, the reinforced bar is placed horizontally in the in-situ rock and soil of the foundation pit and the concrete surface layer is set along the slope. In-situ reinforcement technology that improves the mechanical properties of the overall geotechnical system and improves the stability of slopes and foundation pits. - "Geotechnical Engineering Handbook" Lin Zongyuan Note, October 2005, 1st Edition
The soil nail can be regarded as a small-sized passive anchor (some similar to the full-length bonded anchor), which is divided into two types: bored grouting nail and nailing nail. The soil nailing material is angle steel, round steel and steel bar. Or steel pipe. - "Handbook of Geotechnical Anchorage Technology" Yan Moming, Xu Yuxiang, and Su Ziyi. The latter two participated in the preparation of the Technical Specification for Anchored Shotcrete Support GB50086-2001.