In highway bridge construction, pile foundation construction is a critical step to ensure the stability and safety of the bridge. The primary function of the pile foundation is to transfer the load from the superstructure of the bridge to the deep soil or rock layers, providing reliable support and Read More

Hard clay and mudstone layers are characterized by high strength and compactness, making drilling significantly more challenging compared to softer soil layers. These formations require stricter demands on the selection of drill bits, operational parameters, and drilling techniques. Improper handlin Read More

Boulder and cobble layers present a challenging geological condition characterized by high hardness, uneven distribution, and a mixture of soft soil or other strata. Such conditions impose strict requirements on equipment and techniques. Without proper handling, issues like drill bit damage, reduced Read More