Forming Mechanism of Calcite and its Application in Geological Prediction

doi:10.3973/j.issn.1672-741X.2012.06.013

Tunnel Construction ›› 2012, Vol. 32 ›› Issue (6): 821-826.DOI: 10.3973/j.issn.1672-741X.2012.06.013

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Forming Mechanism of Calcite and its Application in Geological Prediction

REN Changzhen¹, SHI Youhai¹, HE Yu^2

(1. GuiyangGuangzhou Railway Project Headquarters of China Railway Tunnel Group Co., Ltd.,  Duyun 558000, Guizhou, China; 2. China Southwest Research Institute of China Railway Engineering  Company Limited, Chengdu 610031, China)

Received:2012-09-03 Revised:2012-10-20 Online:2012-12-20 Published:2012-12-28

Abstract

Abstract: The relationship among calcite and characteristics of karst, fault zone and ground water are studied, so as to improve the accuracy of geological prediction in construction of karst tunnels. The geological prediction method, which is based on the analysis on the content and characteristics of calcites and the application of geophysical prospecting technology, is proposed. Conclusions drawn are as follows: 1) Anomalous bodies can be detected by means of analyzing the characteristics of calcite, under the help of geophysical prospecting technology. 2) Geological technology and geophysical prospecting technology are needed in geological prediction so as to achieve accurate prediction results. 3) With the help of statistics of and studying on micro phenomenon, macroscopical structures can be detected.

Key words: calcite, forming mechanism, karst tunnel, geological prediction

REN Changzhen, SHI Youhai, HE Yu. Forming Mechanism of Calcite and its Application in Geological Prediction[J]. Tunnel Construction, 2012, 32(6): 821-826.

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Forming Mechanism of Calcite and its Application in Geological Prediction

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