Blasting vibration measuring method for water-bearing rubble ground

Abstract

The invention discloses a blasting vibration measuring method for a water-bearing rubble ground. The method comprises the steps that the distance between a blasting vibration measuring point and a blasting source is designed, and rubble at the blasting vibration measuring point is dug out by a hoe and a shovel; when the water level in a puddle does not change any more, the water depth of the puddle is measured through a ruler, water in the puddle is scooped up, a certain quantity of cement anchoring agent is poured, an accelerator and water are added, the materials are stirred to be uniform, and the cement anchoring agent is made into a cement circular table with the diameter of the upper portion smaller than the diameter of the lower portion; and after the cement circular table is solidified, a proper quantity of water is added into gypsum to be stirred to be uniform, a sensor of a blasting vibration measurer is bonded to the cement circular table, blasting vibration can be measured,and the distance between the blasting vibration measuring point and the blasting source to be larger than the safety allowable distance of blasting flying rubble. The cement anchoring agent used in the vibration measuring method is a material widely applied to tunnel blasting engineering; and the vibration measuring method can effectively solve the problem about monitoring blasting vibration on the water-bearing rubble ground and is simple and practical.

Description

technical field [0001] The invention relates to the field of blasting engineering, especially in tunnel blasting engineering, and specifically relates to a method for measuring vibration of blasting on water-containing gravel ground. Background technique [0002] In the environment of various blasting projects, especially in tunnel blasting projects, the road surface of the tunnel after blasting is all gravel, and at the same time, the tunnel blasting project is carried out underground, and water will accumulate on the road surface of the tunnel. The sensor of the blasting vibration measuring instrument is directly installed on the road surface. Since the road surface is all gravel, the blasting vibration data of the test is distorted. At the same time, the tunnel road surface contains water, so the sensor and the tunnel road surface are not easy to bond firmly. When the sensor of the blasting vibration measuring instrument is installed on the side wall of the tunnel, due to...

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Problems solved by technology

The sensor of the blasting vibration measuring instrument is directly installed on the road surface. Because the road surface is all gravel, the blasting vibration data is distorted. At the same time, the tunnel road surface contains water, so the sensor and the tunnel road surface are not easy to bond firmly.

When the sensor of the blasting vibration measuring instrument is installed on the side wall of the tunnel, due to the large blasting vibration, it is easy to shake off the sensor, and the real data of the blasting vibration cannot be tested. For this reason, we provide a method of blasting vibration measurement on water-containing gravel ground to solve the problem. The difficult problem that runs into in the above-mentioned background technology

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