Shaft boring machine and construction method thereof

Abstract

The present invention relates to the technical field of shaft construction, in particular to a new type of shaft boring machine, which includes a vertical column arranged coaxially with the vertical shaft, a cutterhead arranged at the lower end of the vertical column, a main drive device arranged between the cutterhead and the vertical column, and a A plurality of stabilizers around the lower end of the device, a first-level platform installed above the plurality of stabilizers, a supporting platform fixed and installed around the uprights in turn, a second-level platform, a third-level platform, a fourth-level platform and the propulsion device for the shoe, And a slag discharge device vertically installed in the middle of the column, the cutter head is fixedly connected with the output end of the main drive device. The invention adopts mechanical excavation to reduce the disturbance of blasting to the formation, and at the same time, mechanical excavation can improve the construction quality of the shaft wall, reduce the amount of over-excavation and under-excavation construction, save construction costs, and the equipment is highly integrated, and the support can be closely followed after excavation , the empty side distance is small, and the shaft wall support is timely, which can ensure the construction safety. The equipment is also designed with an efficient slag discharge device.

Description

technical field [0001] The invention relates to the technical field of shaft construction, in particular to a shaft boring machine and a construction method thereof. Background technique [0002] At present, blind well construction technologies mainly include common sinking method and drilling method. The main equipment of the ordinary drilling method includes rock drilling, rock grabbing machine, hanging plate and other equipment. The drilling and blasting method is used to excavate the shaft, which has complicated construction technology, low efficiency, low safety factor of workers and high labor intensity; the drilling method mainly The equipment is shaft drilling rig, which adopts pressurized drilling, and the drilling efficiency is low. For example, some drilling tools have very low excavation efficiency when encountering hard rock and other strata. Larger vertical shafts must be excavated and reamed, and the excavation cannot be completed at one time. After the drill...

AI Technical Summary

Problems solved by technology

The main equipment of the ordinary drilling method includes rock drilling, rock grabbing machine, hanging plate and other equipment. The drilling and blasting method is used to excavate the shaft, which has complicated construction technology, low efficiency, low safety factor of workers and high labor intensity; the drilling method mainly The equipment is shaft drilling rig, which adopts pressurized drilling, and the drilling efficiency is low. For example, some drilling tools have very low excavation efficiency when encountering hard rock and other strata. Large vertical shafts must be excavated and reamed, and the excavation cannot be completed at one time. After the drill pipe breaks, it is troublesome to repair, which has a great impact on the entire construction

Another example is that before the construction of some vertical shafts, it is necessary to cooperate with freezing drilling and blasting around the formation. The underground working conditions of workers are harsh, the safety factor is low, the efficiency of slag extraction after excavation is low, and the cost of freezing around the formation is high.

The construction of shafts still uses traditional construction equipment and construction methods. With the development of society, the disadvantages of traditional construction methods are becoming more and more obvious, which limits the development of shaft construction technology.

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