Tunnel engineering advance geological prediction is classified by length
Tunnel engineering advanced geological prediction refers to the tunnel engineering construction process, through the geological conditions of the advanced detection and development, for the engineering design and construction to provide a basis for the occurrence of geological disasters. When carrying out advanced geological forecasting of tunnel engineering, it is usually classified according to different length ranges.
1. Short-distance advanced geological forecasting.
Short-distance advanced geological prediction refers to the detection and improvement of geological conditions in the short-distance range ahead of tunnel engineering. Typically, the length of short-range advance geological prediction ranges below 30 meters. This forecasting method mainly uses physical methods such as wave method, acoustic wave method, and electromagnetic wave method for detection, and combines geological survey and drilling and other means for analysis and analysis. Short-distance advanced geological prediction is mainly used to understand the lithology, rock strength, groundwater situation of the stratum ahead, etc., to guide the construction of tunnel engineering.
2. Medium-distance advanced geological forecasting.
Medium-range advanced geological prediction refers to the detection and detection of geological conditions in a long range of distances ahead. Typically, the length of medium-range advance geological predictions ranges from 30 to 100 meters. This forecasting method mainly uses physical methods such as wave method, acoustic wave method, and electromagnetic wave method for detection, and combines drilling and other means for analysis and analysis. Medium-distance advanced geological prediction is mainly used to understand the lithology, rock strength, groundwater conditions of the stratum ahead, etc., so as to guide the construction of tunnel engineering. At the same time, for some complex geological conditions, such as faults, karst, etc., medium-distance advanced geological prediction can also provide more accurate results.
3. Long-distance advanced geological forecasting.
Long-distance advanced geological prediction refers to the detection and detection of geological conditions over a longer range of distances ahead. Typically, the length of long-range advance geological prediction ranges from more than 100 meters. This forecasting method mainly uses physical methods such as wave method, acoustic wave method, and electromagnetic wave method for detection, and combines drilling and other means for analysis and analysis. Long-distance advanced geological prediction is mainly used to understand the lithology, rock strength, groundwater conditions, etc. of the stratum ahead, so as to guide the construction of tunnel engineering. At the same time, for some particularly complex geological conditions, such as large faults, karst, etc., long-distance advanced geological prediction can also provide more accurate results.
In the advanced geological prediction of tunnel engineering, it is very important to choose the appropriate forecasting method and technology according to different construction requirements and geological conditions. At the same time, in order to improve the accuracy and reliability of forecasting, it is necessary to continuously research and develop new detection methods and technologies.
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