The steel casing wall protection is used during the hole-forming process of the cast-in-place piles drilled by the full-casing and full-rotation drilling rig. It has

The safety and stability of the water-stop curtain have a significant impact on surrounding safety. In actual construction, loopholes may occur due to various factors

Earthworks 1. The excavation slope is too steep 1.1. Phenomenon: During earthwork excavation, the slope of the foundation pit and trench after excavation is often

During the construction of pile foundations, due to geographical environment, mechanical equipment, and human factors, it is inevitable that some defective piles will appear during

A rotary drilling rig is a construction machine suitable for hole-forming operations in construction foundation projects. It is widely used in foundation construction projects such

Rock Name (Origin) Different rock names represent their origin. The origin of rocks includes (magmatic rock (intrusive rock, volcanic rock), sedimentary rock, and metamorphic rock).

How to Prevent and Control Bored Piles from Deflecting? 1. Quality problems and phenomena 1) The hole is not vertical after being formed, and the

Due to the complex construction technology of bored pile engineering, various visible or invisible factors may interfere with the final pile quality during construction. To

About large diameter piles (d≥800mm) Size effect of extreme side resistance and end resistance. 1. Size effect of large-diameter pile tip resistance. The main reason

Information required for tank inspection (1) Geotechnical engineering survey report in the detailed survey stage; (2) Structural drawings in the construction drawing stage with basic

Classification of Piles 1. Score according to the number of piles Single pile: only one pile The row of piles: a row of multiple piles

Before Talking About the Construction of Punched Piles, Let’s Talk About the Hole Forming of the Mud Wall Protection Wall. 1. Functions of mud: ①Prevent