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1.
阐述了 Mathew法确定矿房结构参数的实质 ,及实际应用中的计算步骤 ,并用该方法确定了侯庄矿区的采场结构参数 ,且在实验性开采中初见成效。  相似文献   
2.
As the centre of India's new information and biotechnology industries, Bangalore has been at the forefront of the country's globalisation. As Prem Chandavarkar explains, the city's architectural culture continues at the leading edge to be one of ‘intellectualism’, valuing ‘the background’, a sense of place and contextualism over the more brash facadism of other cities. Copyright © 2007 John Wiley & Sons, Ltd.  相似文献   
3.
《Architectural Design》2007,77(6):92-97
The work of Mathew & Ghosh Architects (Nisha Mathew-Ghosh and Soumitro Ghosh) boldly extends an abstract Modernist language and at the same time draws from the vitality of places. While the firm's early works were small in scale, mostly residential in nature and based on a reappraisal of the early Corbusian idiom, recent projects include large-scale urban and landscape interventions with diverse conceptual and metaphorical imperatives. They have moved from a more reticent stance to the urban exuberance of their more recent projects (for example, their own office building), something akin to a ‘savage architecture’ as posited by Kazuo Shinohara in the context of the unsynchronised nature of the modern city. The architects' object of contemplation is the urban ‘box’, whether a private residence, office or part of a church. The box is first fractured and reconstructed as a bricolage of tectonic fragments, memories and events, all tenuously related as if unity in a contemporary culture is for ever denied. Like the Japanese notion of ‘ma’, the moment between fragments - a slit or an emptiness between two hovering planes - is telling. Mathew & Ghosh participate in the continuity of a historical narrative yet mark out the fissures and disjunctions; sometimes negotiations with the continuity emerge from unintended interstices. While these configurations of the contemporary urban ‘box’ are both contextual and abstract, they are also phenomenologically rich. There is a sustained dialect to the architecture of Mathew & Ghosh that includes consummate materiality and fine crafting, light as a medium, and always, as Nisha Mathew-Ghosh states, ‘good spatial possibilities’. Copyright © 2007 John Wiley & Sons, Ltd.  相似文献   
4.
稳定的采场是金属矿山深部安全开采的关键。针对云南某矿的工程地质条件和矿体赋存特征,采用Mathew法对采场极限暴露面积进行理论计算,得到采场长度为30 m和40 m时,采场极限暴露面积分别为600 m2和684 m2,运用2种数值建模法对理论计算结果进行模拟验证,模拟结果表明采场极限暴露面积介于600~700 m2之间。研究结果表明,结合理论计算和数值模拟方法,能够在保障矿山安全开采的情况下合理确定最优采场结构参数。对2种数值建模模拟法进行对比可知,与常规建模数值模拟法相比,简化建模数值模拟法表现出明显的优势。  相似文献   
5.
周海麟  陈玉明 《矿冶》2018,27(2):39-42
针对某矿的工程地质及矿体赋存等条件,首先运用Mathew稳定图表法初步确定了采场的极限暴露面积,再根据正交数值模拟试验,得出不同暴露面积下采场的力学规律。两种方法得出的数据可以相互验证以及做出综合决策,以一种更全面的方式去优化采场结构参数。  相似文献   
6.
A direct parallel can be made between the Modernist separation of form, structure and material and the more recent tripartite division in digital processes of modelling, analysis and fabrication, which has resulted in the predominance of geometric-driven form-generation. Today, though, design culture is experiencing a shift to a new level of material awareness. Inspired by nature's strategies where form-generation is driven by maximal performance with minimal resources through local material property variation, Neri Oxman investigates a novel design approach to digital fabrication that offers the potential to program physical matter. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
7.
Mathew法在采矿方法设计中的应用   总被引:5,自引:0,他引:5  
郭然 《金属矿山》1999,(9):22-25
采矿方法和采场结构参数的正确与否是确定经济合理开发地下矿床的关键因素之一。1981年Golder公司以岩体分级为基础建立了岩体质量和采场跨度之间的经验关系,文章简要介绍了Golder公司创建的Mathew法设计采场结构参数的程序和步骤,并用这种方法初步确定了谦比西矿采场结构参数。  相似文献   
8.
合理设置采场结构参数是矿山企业需解决的技术难题。以大新锰矿西北采区+340 m中段的采矿工程为背景,采用Mathew图法验核现有采场设计参数的合理性,优化了采场结构参数。研究结果为:1矿山矿柱尺寸选取合理,能够保证开采安全;2矿块斜长为60 m时,Ⅰ矿与Ⅱ、Ⅲ矿的矿房沿走向的极限宽度理论计算值分别为13.5,10.8 m;建议在今后采矿设计中矿房宽度取9 m;3合理布置西北采区Ⅱ、Ⅲ矿矿柱与Ⅰ矿矿房采空区位置,使之达到上下对应,减少矿柱不合理布置带来的安全隐患。  相似文献   
9.
Lysine Lipoylation is a protective and conserved Post Translational Modification (PTM) in proteomics research like prokaryotes and eukaryotes. It is connected with many biological processes and closely linked with many metabolic diseases. To develop a perfect and accurate classification model for identifying lipoylation sites at the protein level, the computational methods and several other factors play a key role in this purpose. Usually, most of the techniques and different traditional experimental models have a very high cost. They are time-consuming; so, it is required to construct a predictor model to extract lysine lipoylation sites. This study proposes a model that could predict lysine lipoylation sites with the help of a classification method known as Artificial Neural Network (ANN). The ANN algorithm deals with the noise problem and imbalance classification in lipoylation sites dataset samples. As the result shows in ten-fold cross-validation, a brilliant performance is achieved through the predictor model with an accuracy of 99.88%, and also achieved 0.9976 as the highest value of MCC. So, the predictor model is a very useful and helpful tool for lipoylation sites prediction. Some of the residues around lysine lipoylation sites play a vital part in prediction, as demonstrated during feature analysis. The wonderful results reported through the evaluation and prediction of this model can provide an informative and relative explanation for lipoylation and its molecular mechanisms.  相似文献   
10.
针对大厂铜坑矿锌铜矿体的工程地质条件和缓倾斜薄矿体的赋存特征, 运用Mathew稳定图法及正交数值模拟的研究方法, 获得了极限暴露面积下的力学特征规律, 综合确定了采场的极限暴露面积。结果显示, 保障矿山采场稳定的条件下, 在采场长度为30 m和40 m时, Mathew稳定图法得出最大暴露面积分别为924.32 m2和980.64m22; 数值模拟计算的极限暴露面积介于900~1 000m2; 为实现矿山开采的安全, 确定锌铜矿采场极限暴露面积为900m2。研究结果表明, 通过两种方法, 可以实现数据的相互验证和决策, 能够在保障矿山采场安全开采条件下合理确定矿山的极限暴露面积。  相似文献   
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