A shaft construction method used as an underground three-dimensional garage

Abstract

The invention discloses a construction method for a vertical shaft used for an underground stereo garage. The construction method comprises the following steps that 1, an initial section of a shaft body of the vertical shaft is excavating; 2, a bottom section of the shaft body of the vertical shaft is lowered; 3, a vertical shaft tunneling device is installed; 4, the vertical shaft tunneling device is used for excavating remaining shaft sections of the vertical shaft in a segmented mode, the shaft wall of the vertical shaft is lowered while the shaft sections of the vertical shaft are tunneled, and muck is discharged out of the shaft body of the vertical shaft by a muck discharging system; 5, grouting on the back of the wall and block-off grouting on the shaft bottom of the vertical shaftare carried out by utilizing a grouting system; and 6 the shaft wall of the vertical shaft is reinforced, repaired and mantained. According to the construction method, the tunneling direction of the shaft body of the vertical shaft can be self-corrected, the shaft wall of the vertical shaft can be smoothly put down, meanwhile, slurries formed by mixing the muck and water are pumped out to completethe transport work of the muck, so that the conveying efficiency of the muck is improved, and construction time is saved.

Description

Technical field [0001] The invention relates to the technical field of three-dimensional garage construction, in particular to a method for constructing a shaft used as an underground three-dimensional garage. Background technique [0002] In addition to the limitations of site space, urban urban construction projects are also subject to construction period restrictions. When building a three-dimensional garage in urban areas, it is necessary to further control the construction period, so as not to have a greater impact on the lives and work of residents, especially when using vertical shafts to build underground three-dimensional garages. The existing shafts used as underground garages are mostly shafts. The shaft is a bottomless and uncovered shaft, which is generally composed of blade feet, shaft walls, partition walls, well holes, grooves, water injection pipe groups and detection pipes, sealed bottom concrete, and top cover. Composition of various parts. In the process of ...

AI Technical Summary

Problems solved by technology

However, in the process of lowering the shaft wall, it is often encountered that the shaft deflection makes it difficult to lower the shaft wall, and the existing vertical shaft construction usually uses the self-weight of the shaft wall to sink the shaft wall, and then excavates the soil in the shaft. This construction method , when there are hard solids such as gravel in the formation, the sinking speed of the well wall will slow down, or even stop falling, and when a part of the well wall touches hard solids and other parts are still in contact with soil, the well wall is easy to sink. Deflection occurs, which in turn causes a deviation in the direction of shaft excavation

Moreover, during the excavation process of existing shafts, hanging baskets are often used to transport the muck out of the shaft shaft, which seriously affects the construction progress.

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