1) surrounding rock classification evaluation
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围岩类别评定
2) classification of surrounding rock
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围岩类别
1.
In this paper,the engineering geologic characteristics and classification of surrounding rock of the Cretaceous soft rock of Baichuan hydropower station tunnel are deeply expounded,the pattern of e.
该文深刻阐述了白川水电站隧洞白垩系软岩围岩工程地质特性、围岩类别划分,总结了施工中所采用开挖及支护型式、控制围岩稳定的措施和方法。
3) surrounding rock classification
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围岩类别
1.
Comparison analysis of surrounding rock classification before and after excavation on powerhousre of Laxiwa hydropower station;
拉西瓦水电站主厂房施工前后围岩类别对比分析
4) Tunnel wall rock classification
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隧道围岩类别
5) stability evaluation of surrounding rock
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围岩稳定性评价
1.
This paper discusses the stability evaluation of surrounding rock based on 3D elastic-plastic structural analysis of ANSYS.
本文在对国内外围岩稳定性评价研究现状进行综述的基础上,扼要阐述了三维结构弹塑性有限元的基本原理,介绍了ANSYS程序结构及其弹塑性分析的基本过程。
6) surrounding rock stability classification
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围岩稳定性分类
1.
A neural network model for predicting surrounding rock stability classification is built based on the modified MBP neural network.
研究BP神经网络的工作原理和改进技术,分析巷道围岩稳定性的影响因素,基于改进的MBP神经网络建立了围岩稳定性分类的神经网络识别模型。
补充资料:工业行业类别
工业行业类别:国家 1994 年制定的《国民经济行业分类与代码》( GB /T4754 - 94 ),将现行的%26#8220;工业%26#8221;门类调整为%26#8220;采掘业%26#8221;%26#8220;制造业%26#8221;和%26#8220;电力、煤气和水的生产和供应业%26#8221;三个门类。依据产业活动单位其经济活动性质的同一性进行分类,即按企业生产的产品经济用途、使用的原材料、生产工艺性质来划分,而不是按其所属行政管理系统分类。
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