地质结构面计算分析软件研发

为改进地质结构面统计分析手段,利用先进的计算机技术开发完成的地质结构面统计分析软件,解决了工程中结构面信息自动统计、批量自动成图、稳定分析等关键问题,实现了结构面计算分析的参数化、标准化和自动化。工程应用表明:采用地质结构面计算分析软件,可显著提高勘察水平、效率和成果质量。     

层次分析法在斜坡失稳灾害预测评估中的应用

着重介绍了斜坡失稳灾害预测评估的层次分析法,对影响斜坡稳定性的各因素进行了深入分析,确定了判别因子,并结合工程实际情况,制定了因子量化原则。     

保全雁荡各尽其能

60年来,20多次登雁荡山,从感性、理性的认识体验到综合考察研究,逐步认识雁荡山具有国家级和世界级多种学科相互联系的综合价值.尽管其地质科学价值非常突出,但也是综合价值的组成部分.近年来,在有些国家风景名胜区和世界遗产地重叠出现多种专项公园,随之而来的是划分范围、设立机构、开发经商,造成风景区有机综合体的条块分割和景观破坏.有鉴于此,希望有关方面应在严格保护、统一管理、合理开发、永续利用的原则下保存雁荡,各尽其能.     

硅质脉型铀矿床地质特征及成矿机制探讨——以甘肃革命沟矿床为例

文章在介绍革命沟矿床区域地质成矿环境、矿床特征、热液蚀变、元素地球化学、含铀矿物学特征的基础上,分析了成矿物质来源、热液活动及成矿物质迁移途径,论述了硅质脉型铀矿床成矿机制。认为革命沟矿床的形成是地层-岩体-构造-热液活动共同控制的特定时空域内的客观产物,区域含铀建造是成矿的物质基础,成矿热液源自幔汁(HACONS),岩浆及期后热液是铀迁移的载体,铀成矿模式强调了硅质脉后期热液沉淀过程是成矿物质的富集过程。     

地质雷达在薛城隧道地质超前预报中的应用

对超前预报方法进行了简要介绍,简述了地质雷达工作原理并设计地质超前预报探测技术,结合具体工程实例,通过对破碎带波形图谱特征的分析研究,证明了地质雷达在公路隧道短期地质预报中的实用性和有效性。     

川藏公路G317线H3滑坡稳定性分析

川藏公路G317线K1553＋776～K1553＋957处滑坡位于雍达曲左岸岸坡上。勘察了解了滑坡形成的过程,查明了滑坡的分布范围、滑坡所处的地质条件以及滑动面的位置,对该滑坡稳定性做了定性定量分析,认为该滑坡在持续降雨和地震的共同作用下容易产生次生滑坡,而且滑坡治理难度大,建议线路宜展线至对岸较稳定一侧。     

环境对形式的作用，空间对流线的引导——以山西平顺天脊山地质博物馆的设计为例

以山西平顺天脊山地质公园博物馆的建筑设计方案为例,通过探讨环境的特点,分析了环境给予形式的作用以及空间对于流线的诱导。     

Revisiting rock classification to estimate rock mass properties

This paper presents the results of ongoing research carried out by the author exploring methods to provide a more robust estimate of rock mass properties specifically for use in tunnel design. Data from various large-scale rock mass failures are introduced, including coal pillars. The damage-initiation,spalling-limit approach is compared to the coal pillar database. New comparisons of estimating the geological strength index(GSI) and relationships to estimate the Hoeke Brown failure criterion parameters, mb, s and a, are presented.     

The Hoek–Brown failure criterion and GSI – 2018 edition

The Hoek–Brown criterion was introduced in 1980 to provide input for the design of underground excavations in rock. The criterion now incorporates both intact rock and discontinuities, such as joints, characterized by the geological strength index (GSI), into a system designed to estimate the mechanical behaviour of typical rock masses encountered in tunnels, slopes and foundations. The strength and deformation properties of intact rock, derived from laboratory tests, are reduced based on the properties of discontinuities in the rock mass. The nonlinear Hoek–Brown criterion for rock masses is widely accepted and has been applied in many projects around the world. While, in general, it has been found to provide satisfactory estimates, there are several questions on the limits of its applicability and on the inaccuracies related to the quality of the input data. This paper introduces relatively few fundamental changes, but it does discuss many of the issues of utilization and presents case histories to demonstrate practical applications of the criterion and the GSI system.