Vehicle-mounted full-automatic tunnel surrounding rock coring system and method

Abstract

The invention discloses a vehicle-mounted full-automatic tunnel surrounding rock coring system and method. The vehicle-mounted full-automatic tunnel surrounding rock coring system comprises a vehicle, a vertical hydraulic rod is arranged on the vehicle, a horizontal hydraulic rod is arranged on the vertical hydraulic rod, and rock coring devices are correspondingly arranged at the two ends of the horizontal hydraulic rod; the coring devices comprise motors, coring drill rods, coring barrels, threaded rods and springs; the motors drive the coring drill rods to rotate, the coring drill rods sleeve the coring barrels, the head ends of the coring barrels are connected with the head ends of the coring drill rods through the springs, the threaded rods are fixed to the head ends of the coring drill rods in the axis direction of the coring drill rods, internal threads are arranged at the head ends of the coring barrels, and the threaded rods are matched with the internal threads; and drill bits are mounted at the tail ends of the coring drill rods. The vehicle-mounted rock core drilling work is automatically completed, so that the working efficiency is improved, and the safety of construction personnel is indirectly guaranteed; and expansion nails do not need to be driven in, most of manpower is saved, stability of rock core sampling is achieved through the hydraulic rods and a vehicle, and rock cores with regular and standard shapes are easy to obtain.

Description

technical field [0001] The disclosure belongs to the technical field of rock sampling, and relates to a vehicle-mounted fully automatic tunnel surrounding rock coring system and method based on rock sampling. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] In order to ensure the safety of tunnel construction and improve construction efficiency, it is necessary to carry out surrounding rock quality evaluation and surrounding rock classification during tunnel construction, and obtaining relevant physical and mechanical parameters is a necessary condition for carrying out surrounding rock quality evaluation and classification. Generally, it is necessary to carry out rock sampling on the rock mass and further carry out indoor related experiments to accurately obtain the physical and mechanical parameters related to the rock mass, such as: the ...

AI Technical Summary

Problems solved by technology

[0006] 1) Large-scale rock sampling equipment commonly used on the surface, such as XY-4 / 5 / 6, is bulky and inconvenient to enter the tunnel, and mainly performs vertical sampling, which does not meet the requirements for sampling on both sides of the tunnel body

[0007] 2) At present, there are also some small portable rock sampler equipment, but this series of small equipment often requires complicated preparation work before sampling, which reduces the core core rate to a certain extent; Most of the rocks in the tunnel are hard rocks, and the operation of this work is often difficult; moreover, there are also problems with the fixation of the portable sampler when sampling rocks. , which affects the accuracy of subsequent experiments

[0008] 2. The environment inside the tunnel is poor, there is sometimes water, the ground is wet and slippery, it is not conducive to people to walk, and even blocks may fall, which poses a threat to the life and health of the staff. It is necessary to reduce the number of operators entering the tunnel as much as possible.

[0009] 3. Rock coring in the tunnel is to obtain the geological conditions at different locations of the tunnel. Therefore, it is very important to obtain accurate sampling mileage, but manual sampling requires manual measurement of mileage, manual recording, and manual marking of the core to the core Numbering in samples is time-consuming and labor-intensive, and the accuracy is difficult to guarantee

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