Tunnel construction method

Abstract

The invention relates to a tunnel construction method, and belongs to the field of tunnel construction. The tunnel construction method comprises the steps that preparation for to-be-dug is conducted before blasting of an upper part to be dug, and ballast transferring equipment is utilized in the preparation for to-be-dug; the ballast transferring equipment comprises a long material transporting box detachably and fixedly arranged on the upper end face of a middle part to be dug and a transporting vehicle arranged below the long material transporting box, an opening of the long material transporting box faces upwards, and the long material transporting box is arranged in the direction perpendicular to the cross section; and the end, away from the upper part to be dug, of the long material transporting box extends to the outer side of the middle part to be dug, and a material transferring mechanism used for driving ballast falling into the long material transporting box to be transferred into the transporting vehicle is arranged in the long material transporting box. Through arrangement of the ballast transferring equipment, workers conveniently clean the ballast generated by the upper part to be dug in a tunnel, so that the construction efficiency is improved, and the construction period is shortened; and meanwhile, through arrangement of the long material transporting box and the material transferring mechanism, the labor intensity of the workers for transferring the ballast is also relieved, and thus the construction safety is improved.

Description

technical field [0001] The present application relates to the field of tunnel construction, in particular to a tunnel construction method. Background technique [0002] With the rapid development of my country's traffic construction, tunnel engineering has become an important project in large-scale projects such as highways, railways, and municipal projects; in order to ensure good traffic construction in different terrain areas, there are more and more tunnels, but due to the large span of tunnels and complex geological conditions In the face of different geological conditions and tunnel spans, construction personnel often adopt different tunnel construction methods. [0003] In related technologies, such as a Chinese invention patent with publication number CN101864963B and an announcement date of April 10, 2013, a large-section loess tunnel construction method is proposed, which divides the entire section into an upper part to be excavated, a middle part to be excavated, a...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: during construction, when encountering areas with relatively hard geology, blasting is often used to excavate the upper part of the section to be excavated, and blast holes will be drilled in the upper part to be excavated first. And put blasting explosives in the blasting hole to carry out blasting excavation. During the blasting process, more dregs are often produced, and the generated dregs are easy to fall to the central part to be excavated. The construction personnel need to manually operate the excavator to remove the central part. The dregs in the excavated part of the area are transferred to the transport vehicle for transfer by the transport vehicle

Due to the high position of the ballast, it is inconvenient to transfer the ballast by the excavator in the tunnel

Images