海上深层水泥搅拌法在香港国际机场第三跑道 填海工程的应用.

The advantages of the offshore deep cement mixing (DCM) method include the high-efficiency foundation improvement, large-diameter column, high strength, controllable quality, environmental protection and wide application range. The composite foundation formed by offshore DCM method can increase the stability of bank slope, and reduce foundation settlement to achieve the purpose of foundation improvement. Combined with the large-scale application case of DCM method in the main reclamation works of Hong Kong International Airport three runway system project, this paper analyzes the wall type DCM pile with a replacement ratio of about 20% to 33% under the seawall the large-area pile type DCM pile composite foundation with a replacement ratio of about 20% in the land reclamation area. This paper studies the improvement types and analysis method of DCM method, summarizes the quality process in the implementation of new technology, and analyzes the on-site reinforcement effect, which proves that it is feasible for offshore DCM method to strengthen soft soil foundation such as dumped mud and sludge. [ABSTRACT FROM AUTHOR]