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.

Design of Large-Diameter Drilling

Abstract：This paper focuses on the design of large-diameter drilling, elaborating on the design principles and demonstration cases of drilling structure and sequence, as well as key contents including well site layout, wellhead protection, foundation treatment and equipment installation.