Mechanical model of deformation-seepage-erosion for Karst collapse column water inrush and its application [PDF]
With the extension of coal mining in China, fault water inrush has become one of major disasters threatening the safety of coal mine production. Based on the research results related to the mining-induced fault water inrush, this paper proposes a ...
Banghua YAO +6 more
core +1 more source
Investigation of particle impact on 304SS under the liquid-solid two phase flow [PDF]
, 2017 随着社会工业、经济的发展，对能源的需求量日益增加，与此同时也造成了日益严重的环境污染问题。因此，能源结构的调整显得越发重要与急迫。核能具有环保、清洁、能量密度高的特点，弥补了新能源能量密度低的不足，避免了传统化石能源对环境的危害。自1954年世界上第一座核电站并网发电以来，核能得到了较大的发展，然而其安全性影响了核电持续、稳定、长远的发展。 在核电站正常运行时，颗粒状腐蚀物如铁屑、铜屑、细砂等，于二回路、三回路中与流动的流体形成液固两相流。液固两相流会对管道壁面进行磨损-腐蚀行为，导致材料的损耗 ...
曾子华
core
Failure analysis of four tube in power station boiler [PDF]
, 2015 火力发电厂是我国供电主体，约占总体发电量的70%。大型火电厂的安全事关电网的安全运行，而火电厂中的锅炉运行的可靠性是影响发电厂运行可靠性的首要因素，尤其是锅炉四小管的损坏泄漏对机组的安全运行影响最大，是火力发电厂的常见事故，一般占机组故障的60%-70%。锅炉经常由于四小管设计、制造、安装、运行、修理改造、管理等环节的问题以及长期在高温、高压、腐蚀、冲刷等恶劣条件下运行等原因而造成爆管并导致停炉。只有掌握四小管各种类型爆管的失效机理，才能有的放矢开展监督检验工作，寻找有效的管理和技术防治对策 ...
左仁红
core
Analysis on factors controlling shallow failures of the cut slopes and its prevention by bio-engineering measures: A case study of the cut slopes along the highway from Shuangcheng to Dajiali [PDF]
Understanding the primary and secondary relations of influencing factors is crucial for predicting deformation and controlling collapse in cutting slopes. Using a cutting slope along the Shuangcheng to Dalijia expressway in Gansu Province as the research
Changgen YAN +4 more
core +1 more source
Progress and trends in non-tool rock breaking theory and technology [PDF]
With the gradual implementation of China’s deep-earth engineering strategy, deep resource extraction and underground space construction have brought in some new opportunities, but they also face many challenges, with extreme geological conditions such as
Dayang YU +6 more
core +1 more source
Effects of Different Ecological Restoration Measures on Reconstruction of Slope Vegetation in Southeastern Xizang Autonomous Region [PDF]
, 2023 [Objective] The effects of environmental factors on the plant community of a slope during ecological restoration objective of Pai-Mo Highway in Qinghai-Xizang Plateau were analyzed in order to provide theoretical basis for ecological restoration plan of ...
Huang Mengyue +9 more
core +1 more source
Numerical Simulation of 304/316 Stainless Erosion by Two-phase Impinging Jet [PDF]
, 2016 作为世界上最大的能源生产和消费国家，工业化进程不断加速、经济发展日新月异，对各种能源的需求量不断增加，但由于能源的不断消耗以及由此带来的环境副作用，使我们面临着资源环境与经济社会可持续发展的严峻挑战。此时，发展新能源成为刻不容缓的要求，而核能作为一种环保、清洁、高能量度密度的新能源，成为应对当今挑战的一个重要发展方向。同时，核能的安全高效发展，离不开核电站的安全运行。 在反应堆运行时，在核电站的循环回路中，由于冷却剂的腐蚀冲刷、FAC（管道流体加速腐蚀）、磨蚀-腐蚀等作用于堆内构件、燃料棒等 ...
葛少恒
core
An evaluation model and its application of low-pressure abrasive air jet slitting hard rock [PDF]
Low-pressure abrasive air jet technology is one of the most promising methods for addressing the issues of low efficiency and significant tool wear in hard-rock drilling, owing to its strong rock-breaking capability and low energy consumption.
Changjiang CHEN +7 more
core +1 more source
, 2016 渤海海峡跨海通道建设项目既是21 世纪世界级的重大交通项目,也是贯通山东半岛与辽东半岛的重大社会性基础设施项目。除大桥本身设计方面需要解决的关键技术问题外,项目整体规划设计应按照国际一流水平标准,项目的各种设施和生态修复等工程应该在工艺设计、景观设计等方面精心雕琢,打造新型隧桥文化与旅游文化;并以高水平通道规划和建设带动长岛和通道两端的旅游资源保护和旅游开发建设,打造跨越渤海海峡的海上旅游大通道和世界级旅游景群,使跨海通道建设水平和知名度提升,生态环境更趋良好 ...
赵林, 赵林 白青娜 于睿
core
Deformations and seepage-induced erosion of fractured rocks in fault under confined settings [PDF]
ObjectiveMost of the mining areas in China have entered the deep mining stage. In this case, the risks of mine water inrushes increase significantly due to the complex deep hydrogeological conditions, a significant increase in the number of hidden ...
Can YANG +5 more
core +1 more source