A shaft auxiliary excavation equipment

Abstract

The invention discloses a vertical shaft auxiliary excavation equipment, which comprises an annular guide frame, at least one set of which is slidably installed on the annular guide frame and rotates around the center of the annular guide frame to excavate a rock layer for separating the excavated rock layer from the surrounding rock layer. The drilling device of the annular isolation groove and the propulsion device used to drive the drilling device to feed to the rock formation. The propulsion device pushes the drilling device through the annular guide frame, so that the drilling device drills into the rock formation to form a sub-isolation groove; then, the drilling device rotates a certain angle along the annular guide frame, and the propulsion device continues to push the drilling device into the rock formation to form The next sub-isolation tank, in this way, several sub-isolation tanks are connected to each other to form a complete ring-shaped isolation tank, thereby separating the excavated rock formation from the surrounding rock formation, reducing the disturbance of the excavated rock formation to the surrounding rock formation, and improving the performance of each key parameter. Accuracy, so as to ensure the regularity of the excavated rock formation, and the quality of the shaft will naturally improve.

Description

technical field [0001] The invention relates to the technical field of shafts, in particular to auxiliary shaft excavation equipment. Background technique [0002] In order to reduce surface land use, the demand for super underground projects involving national defense projects, large-scale urban underground projects, and underground resource development is increasing, making shaft excavation technology widely used. [0003] Most of the existing vertical shafts are excavated by the drill and blast method, which means that the vertical shafts are excavated by means of drilling and blasting. However, since the excavated rock formations of existing shafts cannot be isolated from the surrounding rock formations, it is inevitable to cause large disturbances to the surrounding rock formations during the drilling and blasting process of the excavated rock formations. Due to the accuracy of key parameters such as the excavation position, the excavation of the shaft can easily induc...

AI Technical Summary

Problems solved by technology

However, since the excavated rock formations of existing shafts cannot be isolated from the surrounding rock formations, it is inevitable to cause large disturbances to the surrounding rock formations during the drilling and blasting process of the excavated rock formations. Due to the accuracy of key parameters such as the excavation position, the excavation of the shaft can easily induce over- and under-excavation phenomena, resulting in irregular contours of the excavated rock formations, which seriously affect the quality of the shaft

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