高强度锚网索喷注支护技术革新在950水平人车场的实践应用

下石节煤矿950水平人车场采用锚网索喷注高强度支护技术。在施工期间,总结原来支护工艺的弊端,汲取新的支护理念,针对原来锚网索喷注联合支护工艺,对原支护工艺进行改革,确保了巷道的稳定性。通过在950水平人车场掘进中的实践应用和实际观测,近一年来没有出现网片开裂及帮部剧烈变形现象,支护作用明显提高,具有良好的应用推广前景。     

煤巷高强度锚杆支护技术研究

锚杆支护技术是提高煤矿巷道安全水平的一种重要手段,直接决定了煤矿开采效率和工作安全系数的高低,通过对高强度锚杆支护技术的作用机理和设计构造进行分析和研究,可以提高锚杆支护技术的水平,实现安全生产,增加煤矿产量。     

水平岩层隧道支护体系加固措施及施工工艺研究

合理的设计支护体系及合理的选择施工技术,可以节约支护成本,本隧道水平岩层的设计加固措施及施工工艺研究将为提高水平岩层隧道整体设计与施工技术水平和确保工程质量,提供理论依据和技术保障。     

基坑工程中土钉墙的信息化监测应用

土钉墙支护结构作为一种较好的原位土加固技术,具有施工速度快,安全经济等优点,被普遍应用在基坑工程支护结构中。本文针对基坑支护结构的机理,通过对某沿海城市基坑工程土钉墙支护结构的水平位移及土体深层水平位移进行监测,对基坑施工技术、监测方案以及监测数据进行了详尽分析,结果表明基坑工程中土钉墙支护技术的信息化监测应用具有较好的经济性和适用性,对今后类似工程提供有价值的工程经验。     

范各庄矿深部软岩巷道支护形式探讨

近年来随着开滦精煤范各庄矿开拓水平的逐渐延伸,软岩巷道施工和支护问题日益突出,对软岩巷道的支护技术的探索既有现实意义,又有长远意义。该公司-600水平二石门7煤层运料上山由于受埋藏较深(埋深-450—-580m)和3273N工作面采动影响,围岩破碎,在采取锚梁网和金拱支架两种支护方式情况下,其底鼓和两帮变形问题依然严重,现根据具体情况探讨深部软岩巷道有效支护方式。     

浅谈煤巷锚杆支护技术及其施工管理

简要分析了煤巷锚杆支护的应用情况及发展水平,分析了煤巷锚杆支护设计的一般原则,对锚杆支护的施工进行详细的论述。     

土钉支护在基坑中的应用

土钉支护以其施工简便及造价低廉而被广泛应用于基坑支护中,土钉支护技术在我国取得了较大的成功,尤其是通过竖向和水平向预应力加强的复合土钉支护,更是弥补了传统支护方式的不足,大大提高了基坑的安全性。本文以具体的工程实例分析土钉支护的效果,通过对比分析,发现土钉支护不仅提高了基坑的安全性,保证工程施工的顺利进行,同时保障了施工人员的安全,可以在一定程度上节省工程投资。     

土钉喷锚支护技术在新疆基坑支护中的应用

本文介绍了土钉喷锚支护技术在医院综合楼基坑支护设计和施工中的应用,分析了复合土钉作用机理,验算了土钉支护结构的稳定性、安全性。对复合土钉墙的设计、施工工艺进行了较详细的阐述。通过监测支护结构水平位移认为:土钉喷锚网支护技术在本工程的应用是成功的。     

超深井采区煤仓支护实践

口孜东矿第一开采水平处于—967米,属超深井开采,面临的地压大、地质条件复杂,传统的支护形式和支护材料,需要在新的环境下探索实践进行变革,以有效的支护质量及强度满足矿井服务年限的需要。本文就口孜东矿采区煤仓施工所采取的支护方式和工艺做一论述。     

超深井采区煤仓支护实践

口孜东矿第一开采水平处于—967米,属超深井开采,面临的地压大、地质条件复杂,传统的支护形式和支护材料,需要在新的环境下探索实践进行变革,以有效的支护质量及强度满足矿井服务年限的需要。本文就口孜东矿采区煤仓施工所采取的支护方式和工艺做一论述。     

An examination of the use of high‐investment human resource systems for core and support employees

In this study, we examine two competing perspectives regarding the relative use of high‐investment human resource (HIHR) systems for core and support employees within establishments. Using data from 420 establishments, we compare a universal perspective suggesting that the level of HIHR exposure core employees receive is always greater than the level of exposure for sup‐port employees, with a contingency perspective suggesting that the relative level of exposure for these employee groups is contingent on strategy, HR philosophy, or industry.The results did not provide support for the universal prediction that core employees always receive higher levels of exposure to HIHR systems than support employees within the same establishment. Moreover, while strategy and HR philosophy were positively related to the level of HIHR system use across establishments, they did not influence the relative level of exposure to HIHR systems for core and support employees. Interestingly, however, industry did exert a unique impact such that core em‐ployees received significantly greater exposure to HIHR systems than sup‐port employees in nonmanufacturing firms.There were no significant differ‐ences in exposure for these two groups in manufacturing industries. Implications of the findings are discussed. © 2007 Wiley Periodicals, Inc.     

A multilevel examination of the relationship between role overload and employee subjective health: The buffering effect of support climates

Although the belief that support alleviates the detrimental effect of job demands on employee health is intuitive, past research has produced an equivocal picture, requiring a renewed evaluation of this relationship. In the present study, we examine three sources of support (from the organization, leader, and team) that employees may draw from to reduce the negative effect of a specific job demand, that is, role overload. Unlike most prior research, we focus on these sources of support at the group level of analysis to determine the relative effectiveness of organizational support climate, leadership climate, and team climate as moderators of the role overload–subjective health relationship. Hierarchical linear modeling of data from 2,288 employees nested in 132 workgroups in a state administration of Switzerland revealed that, after controlling for individual perceptions of support, team climate weakened the negative relationship between role overload and health. We did not find support for the buffering effect of organizational support or leadership climates. The article provides a nuanced test of the support‐buffering hypothesis by simultaneously exploring individual and group‐level sources of support and by demonstrating that some sources of support matter more than others in ameliorating the negative outcomes of role overload.     

Government instruments to support the commercialization of university research: Lessons from Canada

Increased efforts are made in most industrialized countries to promote the commercialization of university research, for instance, through spin-off firm formation. Many studies have investigated the initiatives set up in the university sector that aim to support and facilitate the commercialization of research, such as technology transfer offices (TTO). However, few studies have looked at the increasing number of instruments introduced from the government. This paper reviews the Canadian support structure at federal level that aims to support the commercialization of publicly funded research. Two types of programs can be identified. Firstly, programs made to induce structural reforms within the university sector in order to improve the institutional capabilities to facilitate commercialization projects. Secondly, programs providing support to specific commercialization projects. This paper explores how these types of programs are operated at government level. An example of implementation at university level is also given. The lessons to be learned from the Canadian case are related to how the government initiatives encourage a bottom-up approach. This is accomplished by providing resources for direct use in commercialization projects or to develop professional expertise in technology transfer in the university sector, by experimenting with new initiatives, and finally by facilitating cooperation between commercializing organizations.     

A random walk through the Gibson paradox

Evidence to support the Gibson paradox is often given in the form of a simple correlation between the nominal interest rate and the log of price level, or in the form of a simple linear regression between these two variables. Authors then show, using standard procedures of statistical inference, that the price level possesses a significant coefficient. We argue that this class of evidence is spurious since the nominal interest rate and the price level (both integrated variables) do not form a cointegrated system.     

株洲轨道交通产业中小企业配套现状研究

轨道交通产业是株洲市的重点产业之一,随着株洲市制定《株洲市轨道交通千亿产业集群振兴规划及行动计划》以打造第一个千亿产业群。尽管株洲轨道交通产业近年得到快速发展,技术水平大幅提升,但中小企业配套能力不足严重影响到该产业群的发展。通过研究发现中小企业比重小,配套能力低,经营管理水平落后,协作机制不完善以及融资政策落实难等问题已经成为了现实问题,最后提出政府如何利用好相关政策,建立协作机制来解决这些问题的一些建议。     

The power of coworkers in service innovation: the moderating role of social interaction

Service innovation is central to firms when explaining business success and competitiveness. However, little is known about how useful feedback and help/support from coworkers affect desirable innovation outcomes. This study draws on a conceptual model and theorizes that firms’ support of useful feedback from coworkers and coworkers’ help and support along with social interaction would achieve service innovation. In a sample of 382 employees from a large multinational firm, as hypothesized, employees with highly useful feedback and help/support from coworkers exhibited the highest level of firm service innovation. Moreover, managers can enhance this positive relationship by relying more on increased social interaction among employees for innovation performance.     

软岩条件下新奥法施工工艺研究

软岩巷道支护技术是巷道支护过程中遇到的难题之一,巷道开挖引起应力重新分布、巷道变形,特别是在"三软"(顶板软、底板软、煤层软)条件下巷道变形尤为严重,仅靠锚网支护很难达到预期效果。通过对软岩条件下新奥法施工工艺研究,实践证明在清水营煤矿+965m水平车场使用新奥法施工技术,有效地降低了巷道维修成本,增加了巷道施工的安全性。     

Employee representation on health and safety and European Works Councils

Three hundred and eighty‐six voluntary agreements on European Works Councils are examined for material that might support their role in transnational consultation on health and safety in Europe. A significant percentage do indeed support the potential development of consultation on health and safety at this level, both substantively and with representation on health and safety at enterprise level. However the support is uneven and in a number of areas it is relatively weak.     

销售人员学习的前因及其与销售绩效的关系研究

随着环境日益复杂多变,销售人员的学习对于个人的销售绩效的提升乃至组织的成功都起着至关重要的作用。销售人员学习包括学习努力与系统知识两个不同的维度。其前因变量包括个人层面的主动性、经验开放性和学习导向;任务层面的工作自主度和任务难度;组织层面的学习氛围和管理支持。销售人员学习对销售绩效的影响则是通过减少角色模糊、提升自我效能感和工作满意度来实现的。     

浅议建筑施工技术管理

建筑工程施工技术管理是项目经营管理中的重要组成部分,能使工程施工技术水平的逐步提高,是工程质量、安全、进度保证的有力支持,也是工程项目利润增长的有力支持,能充分体现"科学技术是第一生产力"。