岩体工程勘察中的量化描述方法  

Quantitative description method for engineering investigation of rock mass

作　　者：高翔 刘峻龙 

机构地区：[1]建设综合勘察设计深圳研究院,广东深圳518057

出　　处：《工程勘察》2013年第3期27-30,共4页Geotechnical Investigation & Surveying

摘　　要：不连续面的存在对岩体的工程性质有极大的影响,而目前工程勘察对于岩体及其中的不连续面的描述存在诸多不足。本文介绍了一些针对岩体及其不连续面的量化描述方法。岩体的量化描述包括取芯率、块状取芯率、岩石质量指标、裂隙指数等。不连续面的描述包括倾角、张开程度、不连续面的平滑程度等。并指出只需对现有的岩石钻探的工艺进行少量改进,即可获得大量的岩体及不连续面的信息,可为工程建设提供可靠的依据。The engineering properties of rock mass are greatly affected by the discontinuities in the rock mass. The current descriptions of rock mass and discontinuities are not detailed enough. Several quantitative description methods for rock mass and discontinuities are introduced, which include the TCR, SCR, RQD and FI for rock cores and the inclination angel, aperture and surface roughness for discontinuities. After the current drilling technique is slightly improved, a large amount of useful information for the rock mass and discontinuities could be obtained, which could provide the reliable basis for engineering construction.

关 键 词：岩体 描述 不连续面 取芯率 RQD 裂隙指数 

分 类 号：TU45[建筑科学—岩土工程]