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Simulation of blast induced crater in jointed rock mass by discontinuous deformation analysis method
Youjun NING, Xinmei AN, Jun YANG, Guowei MA,
《结构与土木工程前沿(英文)》 2010年 第4卷 第2期 页码 223-232 doi: 10.1007/s11709-010-0022-5
关键词: blast crater jointed rock mass explosion gas pressure discontinuous deformation analysis (DDA) method
Simplified theoretical analysis and numerical study on the dynamic behavior of FCP under blast loads
Chunfeng ZHAO, Xin YE, Avinash GAUTAM, Xin LU, Y. L. MO
《结构与土木工程前沿(英文)》 2020年 第14卷 第4期 页码 983-997 doi: 10.1007/s11709-020-0633-4
关键词: precast structure fabricated concrete panel blast resistance theory model empirical equation
Jun WU,Xuemei LIU
《结构与土木工程前沿(英文)》 2015年 第9卷 第3期 页码 323-340 doi: 10.1007/s11709-015-0301-2
关键词: high strength concrete (SHS) engineered cementitious composite interface blast test strain rate effect
Yonghui WANG, Ximei ZHAI
《结构与土木工程前沿(英文)》 2019年 第13卷 第6期 页码 1432-1445 doi: 10.1007/s11709-019-0566-y
关键词: blast loading curved steel-concrete-steel sandwich shell Pressure-Impulse diagram single-degree-of-freedom method finite element analysis
Tae Un PAK; Guk Rae JO; Un Chol HAN
《结构与土木工程前沿(英文)》 2022年 第16卷 第8期 页码 1029-1039 doi: 10.1007/s11709-022-0861-x
关键词: wavelet analysis blast-induced vibration frequency characteristics underground excavation
Farhoud KALATEH
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 15-37 doi: 10.1007/s11709-018-0465-7
关键词: air blast loading concrete dams finite element dam-reservoir interaction cavitation concrete damage model
Ismael Matino, Valentina Colla, Teresa A. Branca
《化学科学与工程前沿(英文)》 2018年 第12卷 第4期 页码 718-730 doi: 10.1007/s11705-018-1771-2
For improving wastewater quality, one of the dare of steelworks is reducing cyanide in wastewater of gas washing treatment of blast furnaces. Costs of existing treatments, stringent environmental regulations and changeable composition of water from gas treatment, have led to study how available treatments can be modified and to examine new ones. Ozonation is one of cyanide treatments, tested within a European project. A process model was set up with Aspen Plus®, to assess operating conditions and wastewater distinctive characteristics and to demonstrate treatment robustness. Process was modeled by theoretical reactors, taking into account all more affecting reactions. A genetic algorithm was exploited to find kinetic parameters of these reactions. After validation, the model was used to analyse scenarios, by considering also real contexts. Pilot tests were extended, process knowledge was enhanced and suggestions were obtained. To promote cyanide removal with ozone, temperature and pH values were 30°C and 10, respectively. With an ozone (mg/h)/water (L/h) ratio of 100 mg/L, batch mode ensure reaching cyanide regulation limit (0.2 mg/L) after maximum 4.5 h, if initial amount was less than 20 mg/L. Higher removal was obtained than in continuous mode due to constraints related to this last run. Higher wastewater contamination needed further time and more ozone.
关键词: blast furnace cyanide removal gas washing water modeling and simulation ozonation
Mechanical properties and impact resistance of concrete composites with hybrid steel fibers
Fatih ÖZALP; Halit Dilşad YILMAZ; Burcu AKCAY
《结构与土木工程前沿(英文)》 2022年 第16卷 第5期 页码 615-623 doi: 10.1007/s11709-022-0828-y
关键词: projectile impact depth of penetration fracture energy crater diameter UHPFRC
高炉炼铁过程数据驱动软测量技术研究综述 Review Article
罗月阳1,张新民1,Manabu Kano2,邓龙3,杨春节1,宋执环1
《信息与电子工程前沿(英文)》 2023年 第24卷 第3期 页码 327-354 doi: 10.1631/FITEE.2200366
邹安全,邓沛然
《中国工程科学》 2005年 第7卷 第4期 页码 79-82
通过对ZG32Cr06铸钢粗晶成因的分析及消除粗晶的工艺性能试验,探讨了粗晶导致铸件断裂的机理。试验证明,由于浇铸温度过高,水爆清砂时开箱过早而产生的粗晶可以用热处理方法消除,同时提出了铸件在浇铸时防止粗晶的措施。
Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI
《结构与土木工程前沿(英文)》 2018年 第12卷 第3期 页码 425-437 doi: 10.1007/s11709-017-0427-5
In recent decades, many public buildings, located in seismic-prone residential areas, had to grapple with abnormal loads against which the structures were unguarded. In this piece of research, an ordinary three dimensional reinforced concrete building is selected as case study. The building is located in an earthquake-prone region; however, it is designed according to seismic building codes. Yet, it is not shielded against abnormal loads, such as blasts. It is assumed that the building suffers a blast load, due to mechanical/thermal installation failure during or after intense seismic oscillations. These two critical incidents are regarded codependent and compatible. So the researchers developed scenarios and tried to assess different probabilities for each scenario and carried out an analysis to ensure if progressive collapse had set in or not. In the first step, two analysis models were used for each scenario; a non-linear dynamic time history analysis and a blast local dynamic analysis. In the second step, having the structural destructions of the first step in view, a pushdown analysis was carried out to determine the severity of progressive collapse and assess building robustness. Finally, the annual probability of structural collapse under simultaneous earthquake and blast loads was estimated and offered.
关键词: gas blast pushdown analysis progressive collapse annual probability of structural collapse 3D model of structure
Long Cheng, Ruirui Zhang, Hongke Wu, Xinghai Liu, Tianming Xu
《化学科学与工程前沿(英文)》 2019年 第13卷 第2期 页码 369-376 doi: 10.1007/s11705-018-1734-7
Osama Ahmed MOHAMED, Omar Fawwaz NAJM
《结构与土木工程前沿(英文)》 2017年 第11卷 第4期 页码 406-411 doi: 10.1007/s11709-016-0350-1
关键词: fly ash silica fume ground granulated blast-furnace slag self-consolidating concrete and sustainable concrete
张奇,吴枫,王小林
《中国工程科学》 2005年 第7卷 第10期 页码 28-32
根据框架结构爆破拆除物理过程,建立了有限元数值仿真模型,利用该模型可以对设计方案进行数值仿真和优化,既避免了保守设计造成的盲目浪费,又避免了由于设计不周而造成爆后不倒塌,为框架结构爆破拆除设计提供了新途径。
Yan SHAO,Haobo HOU,Guangxing WANG,Sha WAN,Min ZHOU
《环境科学与工程前沿(英文)》 2016年 第10卷 第1期 页码 192-200 doi: 10.1007/s11783-014-0719-0
关键词: municipal solid waste incineration (MSWI) fly ash blast furnace slag leaching behavior Cr Pb
标题 作者 时间 类型 操作
Simulation of blast induced crater in jointed rock mass by discontinuous deformation analysis method
Youjun NING, Xinmei AN, Jun YANG, Guowei MA,
期刊论文
Simplified theoretical analysis and numerical study on the dynamic behavior of FCP under blast loads
Chunfeng ZHAO, Xin YE, Avinash GAUTAM, Xin LU, Y. L. MO
期刊论文
Performance of soft-hard-soft (SHS) cement based composite subjected to blast loading with consideration
Jun WU,Xuemei LIU
期刊论文
Development of dimensionless P-I diagram for curved SCS sandwich shell subjected to uniformly distributed blast
Yonghui WANG, Ximei ZHAI
期刊论文
Prediction of characteristic blast-induced vibration frequency during underground excavation by using
Tae Un PAK; Guk Rae JO; Un Chol HAN
期刊论文
Dynamic failure analysis of concrete dams under air blast using coupled Euler-Lagrange finite element
Farhoud KALATEH
期刊论文
Extension of pilot tests of cyanide elimination by ozone from blast furnace gas washing water through
Ismael Matino, Valentina Colla, Teresa A. Branca
期刊论文
Mechanical properties and impact resistance of concrete composites with hybrid steel fibers
Fatih ÖZALP; Halit Dilşad YILMAZ; Burcu AKCAY
期刊论文
Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and gas explosion
Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI
期刊论文
The synthesis of 6-(tert-butyl)-8-fluoro-2,3-dimethylquinoline carbonate derivatives and their antifungal activity against Pyricularia oryzae
Long Cheng, Ruirui Zhang, Hongke Wu, Xinghai Liu, Tianming Xu
期刊论文
Compressive strength and stability of sustainable self-consolidating concrete containing fly ash, silica fume, and GGBS
Osama Ahmed MOHAMED, Omar Fawwaz NAJM
期刊论文