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 as municipal construction, highways and…
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). Compared with magmatic rock and…
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 deviation value is greater than…
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 ensure that the quality of…
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 is that the soil at…
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 plan and general structural description;…
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 Pile group: multiple rows of…
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 hole wall collapse ⑴ The…
To ensure that there is no slurry leakage during the construction of bored piles in karst development areas, or that there is no slurry leakage but no hole collapse, and…
Common problem one: soil (gray soil) piles are not dense and broken Phenomenon: The backfilling of the pile holes is uneven, the ramming is not dense, the density is uneven,…
Building pile foundation projects have many construction procedures and high process requirements. Many factors affect the quality of pile foundations. Generally, they include insufficient detailed and accurate engineering geological survey…
Building Foundation Design Specification 1. The center distance of friction piles should not be less than 3 times the diameter of the pile body; the center distance of the expanded…
Kaizer is a leading kelly bar and Piling tools manufacturer in China. Which Specializes in the designing and manufacturing of kelly bars and piling tools for over 15 years. We produce and supply Bored Pile Project-related products, including casings, tremie pipe, drill bits, and other accessories.
