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| 1 | Strength behaviour of sandstone subjected to polyaxial state of stress显示文摘The paper presents an experimental investigation on the strength behaviour of natural rock subjected to polyaxial state of stress. The polyaxial tests were conducted on cubical specimens of sandstone obtained from the Shivpuri district in Madhya Pradesh state of India, The specimens having nominal dimensions of100 mm x 100 mm x 100 mm were tested using a polyaxial testing machine. Twenty-five combinations of intermediate and minor principal stresses were applied and the specimens were loaded till failure occurs. It was observed that the intermediate principal stress has a substantial effect on the strength of the Shivpuri sandstone. A database of rock strength under various combinations of σ_2 and σ_3 was obtained for the Shivpuri sandstone. The database was used to study the predictability of five most commonly used strength criterion. Root mean square error(RMSE), average absolute relative error percentage(AAREP) and coefficient of accordance(COA) were used as indices for the measure of goodness of fit. It was observed that the least error in the prediction was shown by modified Mohr Coulomb criterion followed by modified Weibols and Cook criterion. A probability analysis of the error in prediction was also done. | Rukhaiyar Saurav Samadhiya Narendra Kumar | 2017 | International Journal of Mining Science and Technology2017，27，6： | 4 |
| 2 | Triaxial strength behaviour of rockmass satisfying Modified Mohr-Coulomb and Generalized Hoek-Brown criteria显示文摘The triaxial strength of twenty rockmass types was predicted using two non-linear triaxial strength criteria for rockmass i.e. Modified Mohr-Coulomb(MMC) criterion and Generalized Hoek-Brown(GHB)criterion. Four different rockmass classification systems were used for the calculation of MMC criterion parameters while only GSI classification system has been used for calculation of GHB parameters. The representative value of the uniaxial compressive strength and elastic modulus of rockmass have been estimated using probabilistic approach. A hypothetical case of an unsupported tunnel has been analyzed considering both MMC and GHB criteria. The analysis was done using the convergence-confinement method with two different approaches. The first approach predicts the tunnel response using GHB criterion directly. The second approach predicts the tunnel response using equivalent Mohr-Coulomb parameters obtained by linearization of triaxial data points obtained from MMC and GHB criteria. The tunnel response has been estimated in terms of radius of plastic zone, tunnel convergence and tunnel convergence strain. For very poor rockmasses the tunnel response predicted by MMC criterion is less than that predicted by GHB criterion. For poor and fair rockmass, the tunnel response estimated considering both the criteria are comparable except for few cases. Squeezing condition in rockmass has been also evaluated. | Saurav Rukhaiyar Narendra Kumar Samadhiya | 2018 | International Journal of Mining Science and Technology2018，28，6： | 3 |
| 3 | 查看详情显示文摘 | Samadhiya S Halve A | | 0，，： | 1 |
| 4 | Laboratory model studies on unreinforced and geogrid-reinforced sand bed over stone column-improved soft clay 显示文摘 | Deb K Samadhiya N K Namdeo J B | 2011 | Geotextiles and Geomembranes2011，，29： | 1 |
| 5 | Laboratory model studies on unreinforced and geogrid-reinforced sand bed over stone column-improved soft clay显示文摘 | DEB K SAMADHIYA N K NAMDEO J B | 2011 | Geotextiles and Geomem- branes2011，29，2： | 1 |
| 6 | Synthesis and biological activity of 2-oxo-azetidine derivatives of phenothiazine 显示文摘 | Sharma R Samadhiya P Srivastava S D | 2011 | Organic Communications2011，4，2： | 1 |
| 7 | Laboratory model studies on unreinforced and geogrid-reinforced sand bed over stone column-improved soft clay显示文摘 | Kousik Deb Narendra Kumar Samadhiya Jagtap Babasaheb Namdeo | 2010 | Geotextiles and Geomembranes2010，，2： | 1 |
| 8 | Numerical implementation of anisotropic continuum model for rock masses 显示文摘 | Samadhiya N K Viladkar M N Moataz A A1-Obaydi | 2008 | International Journal of Geomechanics2008，8，2： | 1 |
| 9 | Characterization of discretely graded materials using acousticwave propagation 显示文摘 | Ritesh Samadhiya Abhijit Mukherjee Siegfried Schmauder | 2006 | Comput Mater Sci2006，，37： | 1 |
| 10 | Design of a rigid cutoff wall显示文摘 | Singh A K Mishra G C Samadhiya N K | 2006 | International Journal of Geomechanics2006，6，21： | 1 |
| 11 | Synthesis and Biological Study of Some 4-oxo-Thiazolidine Derivatives of 2-Aminothiazole显示文摘常规并且微波帮助了 N- 的新系列的合成[2-{2-( 代替的苯基)-4-oxo-5-(substituted benzylidene )-1,3-thiazolidine}-iminoethyl]-2-aminothiazole 5a5m 被开发了。有 N- 的 thioglycolic 酸的 cycloaddition 反应 {2-( 代替的 benzylidenehydrazino )-ethyl}-2-aminothiazole 3a3m 面对无水的 ZnCl2 负担得起新杂环的混合物 N-[2-{2-( 代替的苯基)-4-oxo-1,3-thiazolidine}-iminoethyl]-2-aminothiazole 4a4m。有几选择的代替的芳香的醛的处理上的以后的产品面对 C2H5ONa 经历 Knoevenagel 反应产出 5a5m。混合物的结构 1, 2, 3a3m, 4a4m 和 5a5m 被红外, 1H NMR, 13C NMR, FAB 团和化学分析证实。所有上面的混合物对 M 对一些选择细菌和真菌和 antituberculosis 学习为他们的抗菌剂活动被屏蔽。肺结核。 | Samadhiya Pushkal Sharma Ritu Srivastava Santosh K. Srivastava Savitri D. | 2011 | Chinese Journal of Chemistry2011，29，5： | 0 |
| 12 | Blast Induced Damage to Surrounding Rock Mass in an Underground Excavation显示文摘 | Harsh Kumar Verma Narendra Kumar Samadhiya Mahendra Singh Vilugundam Venkat Ramana Prasad | 2014 | Journal of Geological Resource and Engineering2014，2，1： | 0 |
| 13 | Synthesis of N1-3-{(4-Substituted aryl-3-chloro-2-oxo- azetidine)-iminocarbamyl}-propyl-6-nitroindazole Derivatives and Their Biological Significance显示文摘合成 ofN1-3-{(4 代用品 daryl-3-chloro-2-oxo-azetidine )-iminocarbamyl}-propyl-6-nitroindazole 4a4s 被一个常规方法进行。所有混合物被红外, 1H NMR, 13C NMR, FAB 团技术和化学方法综合并且描绘。所有最后的综合混合物与一些选择微生物与 MIC 价值为他们的抗菌剂活动和 antitubercular 活动被作比较。 | Samadhiya, Pushkal Sharma, Ritu Srivastava, Santosh K. Srivastava, Savitri D. | 2011 | Chinese Journal of Chemistry2011，29，8： | 0 |
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