简介:摘要从塑性力学的角度出发,应用球孔扩张理论,并假定土体为均质、各向同性的理想弹塑性体,引入了土性参数剪胀角以区别于非土体等其他材料,采用摩尔一库仑屈服函数和不相适应的流动法则求得球形扩张问题的解析解,分析成桩过程中桩周土体的应变与应力并应用此理论估算压扩支盘桩单桩承载力。
简介:院高职液压与气动技术专业是一个总体需求量大,单个企业用量小、技术要求高的专业,针对专业特点与多家企业合作进行“组合订单”培养实践,提高专业人才培养质量,为其他专业人才培养模式改革提供思路。
简介:SF6即六氟化硫封闭式组合电器,因为其能将带电部分在六氟化硫气体内完全封闭起来,既不接触空气又不受外界各种因素影响,因而在电力施工中应用广泛,其安全性和稳定性更高。又因它能将母线、断路器、电压互感器等设备组成一个整体,其便利性显而易见。文章研究的重点则放在对SF6封闭式组合电器在施工过程中的现场交接试验和技术分析上。
简介:【摘要】随着互联网的飞速发展,工商管理人才需求也逐渐加大,创新创业教育人才培养能够满足当前工商管理教育教学的迫切要求。文章主要以此为基础,探讨双创模式与工商管理专业教学的融合发展。 Abstract: With the rapid development of the Internet, the demand for business administration talents is also increasing. The training of innovative and entrepreneurial education talents can meet the urgent needs of business administration education and teaching. Based on this, this paper mainly explores the integration and development of the double-creation mode and the teaching of business administration specialty.
简介:摘要:论文 分析了黄花滩铁矿区构造承压含水层(带) 的地质、 水文地质条件,详细分析研究了矿区 地下水的赋存 条件、地下 水化学特征 。基本查明 了矿区构造承压含水层(带) 的水文地质条件及 成因机制,通过 对其 水文地质条件及 成因机制 的深 入分析 研究,为后期矿山开发设计利用提供了水文地质条件参考依据,同时也为该类型矿区水文地质条件调查、勘查和供水水源地的勘查工作起到了借鉴指导意义。 summary : T his paper analyzes the geological and hydrogeologic conditions of the structural confined aquifer ( zone ) in Huanghuatan i ron m ining a rea, and analyzes in detail the occurrence conditions and chemical characteristics of the groundwater in the mining area. The hydrogeologic condition and the genetic mechanism of the structural confined aquifer (zone) in the mining area are basically ascertained, and the hydrogeologic condition and the geological conditions are provided for the later mine development and design by the in-depth analysis of the hydrogeologic conditions and the genetic mechanism. At the same time, it also has a reference significance for the investigation of hydrogeological conditions, and the exploration of water supply sources in this type of mining area.
简介:摘要通过对其经济指标、支架性能分析,总结支架的适用条件及使用过程中存在的问题,并提出解决办法。