The invention discloses a device for regulating and controlling contact and interaction between a
pile and earth. The device comprises a negative pressure pump, a grouting pump and a
pile body embedded in a selected region. The device is structurally characterized in that a main negative pressure pipeline and a main grouting pipeline are arranged in the
pile body or on the surface of the pile body, wherein the main negative pressure pipeline is connected with the negative pressure pump, and the main grouting pipeline is connected with the grouting pump; the device is further provided with a plurality of
branch negative pressure pipelines distributed at intervals and a plurality of
branch grouting pipelines distributed at intervals, wherein the
branch negative pressure pipelines are communicated with the main negative pressure pipeline, and the branch grouting pipelines are communicated with the main grouting pipeline; a valve can be arranged in each branch grouting pipeline, and a plug can be arranged in the main grouting pipeline; deformation sensors and
stress sensors can be further arranged in the pile body, wherein the deformation sensors and the
stress sensors are connected with a monitoring
station. The device has the advantages that opening and closing of the contact surface between the pile and the earth can be flexibly controlled, the stress condition of the end of the pile can be effectively controlled, stress and deformation of the pile body can be flexibly adjusted, and the device can effectively cooperate with the pile and the earth to work together.