Application and effect analysis of underwater non-dispersive mortar for large diameter underwater shield tunnel
With the development of modern engineering construction technology,special mortar,as a high-performance building material,is increasingly widely used in engineering.The underwater non dispersible special mortar has achieved good results in the construction of underground engineering projects with rich development of bedrock fissure water,abun-dant underground dynamic water,and strong fluidity affected by tides.This article relies on the experimental section of the large-diameter underwater shield tunnel of the Guangzhou Haizhu Bay Tunnel Project.Through comparative analysis and tracking verification of the use of ordinary mortar and underwater non dispersed mortar in the same environment,from in-door experiments,ground penetrating radar scanning,surface settlement monitoring,pipe misalignment,water leakage,and upward floating,the feasibility of underwater non dispersed mortar is analyzed.
large-diameter underwater shield tunnelunderwater non-dispersive mortarwater development in bedrock fissureabundant underground moving water