Dynamic feedback adjusting shield tunneling earth pressure balance control method

The invention discloses a dynamic feedback adjusting shield tunneling earth pressure balance control method. In earth pressure balance shield tunneling construction, the water and earth pressure of an excavated formation is determined at first and is taken as a reference value of earth bin pressure after being corrected; afterwards, in the shield tunneling test pushing process, ground surface settlement is detected in real time, and data obtained through monitoring is subjected to ground surface settlement analysis; and analysis results are transmitted to a shield tunneling control system, and the earth pressure balance of the excavated face is achieved by judging and adjusting the earth bin pressure. According to the method, formation deformation caused when shield tunneling penetrating downwards through important buildings such as existing railways and building compact districts is effectively controlled, and the influence of shield tunneling construction to the ground surface is reduced.