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.
关键词
大直径水下盾构隧道/水下不分散砂浆/基岩裂隙水发育/地下动水丰沛
Key words
large-diameter underwater shield tunnel/underwater non-dispersive mortar/water development in bedrock fissure/abundant underground moving water