首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   10篇
  免费   1篇
教育   10篇
信息传播   1篇
  2022年   1篇
  2021年   1篇
  2020年   1篇
  2019年   1篇
  2014年   1篇
  2013年   1篇
  2010年   1篇
  2009年   1篇
  2008年   1篇
  2006年   1篇
  2003年   1篇
排序方式: 共有11条查询结果,搜索用时 0 毫秒
1.
TBM(Training Base Management)系统就是一种基于三层架构和SOA体系而去开发的一款系统,主要是帮助实训基地处理日常业务的管理系统,实现基地的高效管理。  相似文献   
2.
TBM(岩石隧道掘进机)刀盘掘进、支撑、出碴要求机、电、液、气、光等各系统协调工作,整个系统由PLC(可编程控制器)进行控制。PLC的I/O接口与TBM各故障监测点连接,能随时监测机器的运行状态。阐明TB880E型TBM中PLC的应用,并举例阐述PLC程序的故障诊断功能.  相似文献   
3.
为了提高深埋软硬互层地质的长距离隧道施工效率和质量,提出基于隔离桩盾构隧道开挖技术的深埋软硬互层地质长距离隧道TBM施工方法,采用模糊约束控制方法进行长距离隧道TBM施工的盾构参数优化设计,对弯矩、水平位移、轴力等参数进行准确计算,针对深埋软硬互层地质土体的各向异性和复杂边界条件进行长距离隧道施工过程中的地基土层基本物理力学指标优化设计,实现隔离桩盾构隧道开挖施工优化设计。测试结果表明,采用该方法进行深埋软硬互层地质的长距离隧道施工的弯矩控制性能较好,水平位移和沉降的效能较好,提高了深埋软硬互层地质的长距离隧道施工的质量。  相似文献   
4.
双护盾掘进机是一种高速、安全、自动化的隧洞工程施工机械,在实际工程中得到了广泛的应用。通过对其循环施工过程的深入研究,建立了双护盾掘进机循环运行网络模拟模型。采用循环运行网络理论,结合计算机模拟技术,开发了双护盾掘进机施工模拟程序。对一个工程实例进行了模拟分析,得到了此施工方案的施工净工期、净成本、掘进机掘进效率。  相似文献   
5.
基于Paris 公式建立TBM 刀盘的裂纹扩展模型,利用Workbench 模拟裂纹的开裂过程,计算出其循环次数与应力强度因子。 并改变双裂纹的初始长度、距离、角度,分析多部位损伤时筋板的裂纹扩展寿命。 结果表明,裂纹的初始长度越长构件越容易失效,每增加2.5 mm 寿命将减少35%,而双裂纹距离对寿命的影响较小,在10%以内。 当裂纹方向和受力方向垂直时,构件容易失效,反之则对寿命的影响越小。 该研究可为刀盘设计过程中疲劳寿命领域提供参考。  相似文献   
6.
引红济石调水工程属省内的跨流域调水工程,输水隧洞长近20km,工程采用钻爆法与TBM联合施工方案,工程区地质条件极为复杂。突发性涌水、地质断裂带、长距离隧洞排水、通风、出渣等问题对采用TBM施工提出了特殊要求。应尽早对引红济石工程施工要求的TBM设备进行研究,为设备采购、制造作好前期技术支持。  相似文献   
7.
Long tunnel excavation with tunnel boring ily affected by uncertainties and needs to be adjusted machine (TBM) is a complex and stochastic process. It is eas- according to specific geological conditions in different tunnel sections, which makes the construction scheduling and management difficult. Based on the rock mass classification, this paper estimates the penetration rate. Using the rate, a cyclic network simulation (CYCLONE) model of TBM boring system is established, and the advance rates under different geological conditions are determined. Then, the impact of different cutter head thrust, which is chosen in reasonable range according to previous experiences, on pro- ject schedule is analyzed. Moreover, the simulation model of mucking system is built to determine the number of muck trains and rail intersections reasonably, regarding the efficiency of muck loading and material transporting. Based on the interaction and interrelation between TBM boring system and mucking system, the combined CY- CLONE model for the entire tunneling process is established. Then reasonable construction schedule, the utilization rate of working resources, and the probability of project completion are obtained through the model programming. At last, a project application shows the feasibility of the presented method.  相似文献   
8.
通过对TBM通过富水带的施工技术进行介绍,分析TBM在富水带施工对地下水的处理措施,详细论述超前阻水注浆施工,TBM在洞内排水措施及排水技术,并在实际应用中取得良好的效果。  相似文献   
9.
ABSTRACT

The purpose of this research is to evaluate the role of society-based library or Taman Bacaan Masyarakat (TBM) in empowering Surabaya City people. Society-based library will be a place of Surabayans’ live-long learning according to the Law on Even Distribution of and Rights to Education. This research adopts a quantitative approach with qualitative data analysis. The sample of the research is fourteen TBMs that have an empowerment program or is near to a small and medium enterprise. Findings of the research include: (1) that TBM role in community empowerment is beginning to be noticeable in their empowerment programs such as trainings for local community, (2) that empowerment programs at TBM are conducted informally and intermittently, such as trainings of producing aromatherapy candles, beads, flannelette, and waste recycling, and (3) the TBM are constrained by shortage of collection and funding for programs. The research recommends that: community empowerment programs should be increased through TBM programs; TBM personnels should be encouraged to innovate; and collection development should be tailored with local needs.  相似文献   
10.
针对TBM掘进机主机建立了一个微机温度、压力检测系统,介绍了此系统的具体实现方法,运用微机实时处理功能和VB实现动态实时地测试16个通道的温度、压力信号,分析并输出测试结果。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号