Advanced dynamic forecasting method applying isotope to tracing rock mass water flowing channel

Abstract

The invention provides an advanced dynamic forecasting method applying an isotope to tracing a rock mass water flowing channel. The advanced dynamic forecasting method comprises the following steps that pilot drilling is carried out in front of tunneling to form a logging well, and a filter tube is arranged in the logging well; a radioactive isotope tracer is put into the filter tube, a seepage principle is used for permeating water flows, and the flow velocity and the flow rate of water are measured; and an inspection logging well is drilled in front of the water flows, the distribution condition of the water flowing channel is reversely obtained through the determination of the isotope concentration and recording of the water quantity in the inspection logging well, and the feed relationof water of the water flowing channel is determined through the change of the isotope concentration of water flowing into the logging well.

Description

technical field [0001] The disclosure belongs to the field of tunnel construction, and relates to an advanced dynamic prediction method using isotope tracer rock mass water-conducting channels. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Isotope tracers, the stable nuclides and radionuclides that make up each element in nature generally have the same physical and chemical properties. Therefore, radioactive nuclides or enriched rare and stable nuclides can be used to trace the objective state and change process of the research object. The distribution and changes of substances labeled with radionuclides can be observed through radioactive measurement methods, and the enriched rare and stable nuclides can be directly measured by mass spectrometry or by neutron methods. [0004] According to the knowledge of the inventor, the methods c...

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Problems solved by technology

[0004] According to the knowledge of the inventor, the methods commonly used in the field of geophysical exploration to detect water, faults, and water channels include: terrestrial sonar method, transient electromagnetic method, and compound induced polarization method. The geophysical field cannot completely and accurately identify geological At the same time, the multi-solution of the inversion greatly limits the accuracy of the data. At the same time, the interpretation of the data is affected by the experience of the observers, and the existence of the aqueduct and the distribution range of the aqueduct cannot be fully identified. Unable to estimate actual water volume

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