Bored cast-in-place piles have the advantages of low construction noise, and low vibration, pile length and diameter can…
The four major construction technologies are dry hole forming technology, slurry static pressure technology, casing technology, and concrete wall-making technology.…
Soil nail support is a new type of retaining structure developed in recent years for soil excavation and slope stabilization.…
The function of the pile is to transfer the load of the upper building to the deep soil (rock) layer…
Insufficient Torque of Power Head of Rotary Drilling Rig Fault phenomenon: The power head torque of the rotary drilling rig…
Building Foundation Design Specification 1. The center distance of friction piles should not be less than 3 times the diameter…
Building pile foundation projects have many construction procedures and high process requirements. Many factors affect the quality of pile foundations.…
Information required for tank inspection (1) Geotechnical engineering survey report in the detailed survey stage; (2) Structural drawings in the…
About large diameter piles (d≥800mm) Size effect of extreme side resistance and end resistance. 1. Size effect of large-diameter pile…
Due to the complex construction technology of bored pile engineering, various visible or invisible factors may interfere with the final…
How to Prevent and Control Bored Piles from Deflecting? 1. Quality problems and phenomena 1) The hole is not vertical…
Rock Name (Origin) Different rock names represent their origin. The origin of rocks includes (magmatic rock (intrusive rock, volcanic rock),…