Abstract: The present application relates to a top plate jacking device and jacking construction method configured for V-shaped columns, the top plate jacking device comprising a temporary support pile comprises a plurality of pile holes arranged on a construction surface, a bottom end of the pile hole is cast-in-place with a bearing platform, a temporary support column is inserted on the bearing platform, a plurality of pillars are fixed at a top of the temporary support column, wherein comprises a plurality of vertically connected column segments, two adjacent column segments detachably connected vertically through a connecting component; a support block is provided at a top of the plurality of pillars, the top of the support block abuts against a lower surface of the top plate; a hydraulic jack is configured to jack the top plate and is provided with a plurality of intervals at the top of the temporary support column.

Abstract: The present invention belongs to the technical field of tunnel surrounding rock supports and discloses a tunnel surrounding rock supporting method and system based on a tunnel field deconstruction and reconstruction theory. The tunnel surrounding rock supporting method based on the tunnel field deconstruction and reconstruction theory comprises the following steps: establishment of a tunnel field, deconstruction of the tunnel field and reconstruction of the tunnel field. In the tunnel surrounding rock supporting method based on the tunnel field deconstruction and reconstruction theory provided by the invention, through reconstruction of the tunnel field, the energy storage capacity of a rock and soil mass can be improved.

Abstract: The present application discloses an active sorting muck-collecting device for slurry balancing shield, aiming at solving a technical problem that an existing muck-collecting device cannot provide reliable sorting function for a shield slurry circulation system. The device includes a sorting stirring cylinder, a circulation pipeline and a muck-collecting box, the sorting stirring cylinder includes an outer cylinder and a rotatable grid cylinder coaxially-configured. The grid cylinder is configured with a rotating shaft, and a spiral conveying mechanism is fixedly configured inside. The rotating shaft is fixedly connected with the grid cylinder. A circulation pipeline communicated with the grid cylinder is correspondingly configured below the grid cylinder. A muck-collecting box is fixedly configured below the circulation pipeline, and the muck-collecting box is communicated with the grid cylinder at where an output end of a slurry discharging pipeline locates.

Abstract: The application discloses a pipeline annular self-traveling guide apparatus and a pipeline annular self-traveling guiding method. The pipeline annular self-traveling guide apparatus includes an inner annular groove and an outer annular groove. A first pipeline fixing part is configured on the inner annular groove, a second pipeline fixing part is configured on the outer annular groove, an annular bracket which is configured to rotate freely along a circumferential direction is correspondingly configured between the inner annular groove and the outer annular groove, a pipeline supporting roller group is configured on the annular bracket, and gaps for laying pipelines are reserved between a circumferential surface of the pipeline supporting roller and inner bottom surfaces of the inner annular groove and the outer annular groove.