Bored Pile Drilling

Abstract: This paper elaborates on bored pile drilling technology, identifying bored piles as an important type of cast-in-place end-bearing pile. Compared with precast piles, bored piles feature controllable costs, low steel consumption, strong capability for large-diameter and ultra-deep hole forming, wide geological applicability, and low environmental impact, while still facing deficiencies such as sediment cleaning and borehole wall mud cake issues. It also introduces the basic requirements, characteristics, conventional and innovative drilling processes, and points out the broad application prospects of this technology amid technological innovation.

Diaphragm Wall Drilling

Abstract: This paper briefly describes the development history of diaphragm wall drilling technology and its applications in municipal, water conservancy, transportation and other fields. It details two major drilling methods, namely the panel method and the shaft array method, as well as two drilling sequences, namely horizontal drilling and vertical drilling. It also mentions the advantages of relevant technological breakthroughs, presenting its core content and application value.

Deep Well Sewage Treatment Well (Deep Well Aeration Process)

Abstract: This paper briefly describes the advantages and domestic & foreign development history of the deep well aeration process, and defines the deep well as the core structure of the system. It focuses on the deep well structure and drilling quality requirements, highlights the key precautions during drilling construction, and specifies the core specifications for structural design and drilling construction.