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设的根本需求对数字矿山进行了重新定义,并借鉴建筑行业的建筑信息模型(BIM),提出矿山信息模型(MIM),该模型包括数字模型,业务模型与方法模型等三方面基本内容.阐述了以MIM作为基本理念的数字矿山建设基本手段和方法,以实现矿山全生命周期业务手段数字化,流程标准化及信息共享,协同工作,为数字矿山建设及相关产品研发提供重要依据和参考.关键词:数字矿山;矿山全生命周期管理;协同作业;矿山信息模型;BIM;......
用分子动力学模拟苯并咪唑类化合物在铁表面的吸附许立宁1,王兴1,常炜2,路民旭11. 北京科技大学新材料技术研究院腐蚀与防护中心2. 中海石油研究总院摘 要:利用分子动力学(MD)方法分别研究了5种苯并咪唑类化合物∶苯并咪唑(BIM),2-丙基苯并咪唑(2-PBIM),2-戊基苯并咪唑(2-ABIM),2-己基苯并咪唑(2-HBIM)以及2-对氯苄基苯并咪唑(2-Cl-BBIM)在铁表面的吸附行为.同时利用腐蚀失重法,极化曲线等方法测试缓蚀效率.结果表明,计算得出的5种缓蚀剂吸附能大小排序为:BIM<2-PBIM<2-ABIM<2-HBIM<2-Cl-BBIM,与失重法得出的缓蚀效率排序一致.径向分布函数分析表明,5种缓蚀剂都能与铁表面形成化学吸附.关键词:分子动......
融合三维地质体的Revit精细化基坑建模郝峰山东省第四地质矿产勘查院摘 要:首先通过正交试验优选出Revit基坑支护结构模型无缝连接Civil真三维地质体模型的融合方案,解决了当前Revit难以直接创建真三维地质体模型的难题;在此方案基础上,探索并总结出一系列诸如桩,锚,面层等常用基坑支护结构的精细化建模方法;最后结合实际工程案例,对基坑支护综合模型在辅助设计方面做了BIM理念下的初步应用研究:周边环境条件三维具现与漫游展示,支护结构与周边已建地下预制桩碰撞检查,工程量精确统计,不同支护结构空间交界节点设计优化,地下水位面,软弱风化基岩面及淤泥层三维空间展布状态剖切观察,导出可用于指导精确测量放线的二维CAD支护桩位平面图等.关键词:真三维地质体;精细化;基坑建模;支护设计;BIM......
双咪唑啉缓蚀剂的缓蚀性能评价温福山1,2,杜永霞1,2,张涵1,2,楚雨格1,2,李白1,21. 中国石油大学(华东)理学院材料物理与化学系2. 新能源物理与材料科学山东省高校重点实验室摘 要:以丁二酸与二乙烯三胺为原料合成了双咪唑啉(BIM),再与氯化苄季铵化后得到双咪唑啉季铵盐(BIMI).采用静态失重法和电化学方法评价了BIMI缓蚀剂在质量分数为15%的HCl溶液中对N80碳钢的缓蚀性能,探讨了其在N80碳钢表面的吸附行为,并与合成的咪唑啉季铵盐(SIMI)缓蚀剂作比较.应用Gaussian 03W程序,密度泛函理论(DFT)的B3LYP/6-311G*方法对两种咪唑啉进行了结构优化,分别得到了两者的稳定构型及相关量化参数,同时对两种分子在Fe(001)晶面的吸附进行了分子动力学模拟.结果表明......
(BIM) technology. However, numerous designers still maintain their disciplines’ independence, and different design companies have different software applications to fulfill their tasks in the Chinese... technologies are making BIM an inevitable method of delivery and management of the building environment [J]. Journal of Building Information Modeling, 2007, 1(1): 16-18. [3] CHEN Po-han, CUI Lu, WAN Cai......
(BIM) [47, 48], the deformation brittleness index (Ku) [49], the brittleness index of rockburst proneness (B) [50], and the strength brittleness index (B1 [38, 51], B2 [49], B3 [40]). Except... in Table 1. 2.13 Brittleness index modified (BIM) The BIM [47, 48] is defined as the ratio of the total input energy density of the pre-peak to the peak elastic strain energy density. The peak elastic......
Railway Society, 2017, 39(10): 110-117. [19] 王卫东, 雷晓鸣, 杜香刚, 等. 基于蒙特卡洛和BIM的CRTSⅢ型板式无砟轨道铺设工期仿真[J]. 中南大学学报(自然科学版), 2019, 50(7): 1655-1661. WANG Weidong, LEI Xiaoming, DU Xianggang, et al. Period-simulation of CRTSⅢ slab track based on Monte Carlo simulation and BIM[J]. Journal of Central South University (Science and Technology), 2019, 50(7): 1655-1661. [20] 王璞, 高亮, 赵磊, 等. 路基地段CRTSⅢ型板式无砟轨道底座板限位凹槽设置方......
Aided Engineering, 2020, 29(2): 55-60. [23] TANG Fanlong, MA Tao, ZHANG Junhui, et al. Integrating three-dimensional road design and pavement structure analysis based on BIM[J]. Automation in Construction, 2020, 113: 103152. [24] TANG Fanlong, MA Tao, GUAN Yongsheng, et al. Parametric modeling and structure verification of asphalt pavement based on BIM-ABAQUS[J]. Automation in Construction, 2020......
Li-feng. Integrating three-dimensional road design and pavement structure analysis based on BIM [J]. Automation in Construction, 2020, 113(5): 103152. DOI: 10.1016/ j.autcon.2020. 103152. [12] ZHANG...] TANG Fan-long, MA Tao, GUAN Yong-sheng, ZHANG Zhi-xin. Parametric modeling and structure verification of asphalt pavement based on BIM-ABAQUS [J]. Faculty of Engineering, 2020, 111: 103066. DOI......
of precast concrete elements using BIM and 3D laser scanning [J]. Automation in Construction, 2015, 49: 225-238. [19] QIAN D S, PENG Y Y, DENG J D. Hot deformation behavior and constitutive modeling of Q345E......
