The invention provides an
earth pressure balance type shield long-distance lake-crossing construction technology, which is characterized by comprising the following technological processes that: (1) before the lake crossing, equipment such as a
shield tunneling machine cutterhead, a cutter, a grouting
system, a sealing
system, a thrust jack and a
monitoring system are carefully inspected; (2) an earth pressure value is reasonably set, and the volume of excavated earth is strictly controlled; (3) the thrust speed is reduced, and the total thrust is controlled; (4) a shield posture is regulated, and the number of deviation correcting times and the deviation correcting quantity are reduced; (5) the
slurry mixing ratio is optimized, and the grouting quantity and the grouting pressure are reasonably set; (6) water leakageat the shield
tail is strictly prevented; (7) the construction quality is enhanced, and the tunnel self-waterproof capability is improved; (8) earth body improvement is performed; (9) secondary grouting supplementation is performed; (10) anti-drag
slurry is injected; (11) after the shield crosses the lake bottom, the lake bottom in the interval influence range is subjected to radial grouting for reinforcement; and (12) the communication smoothness of the tunnel and the ground is ensured. The excessive lake bottom
sedimentation is avoided, and the influence of accidents such as spewing or large-area collapse on the
engineering safety and the environment safety is prevented.