共查询到19条相似文献,搜索用时 78 毫秒
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介绍了一种新型无井架竖井施工工艺技术:在施工条件允许时,可与地面钢筋混凝土井塔和地下竖井同时施工,与通常竖井施工方法相比,可缩短施工工期,节约建设投资。通过无井架竖井施工案例及分析总结了其技术特点,详细的无井架竖井施工应用实例,可为该技术的推广应用提供借鉴经验。 相似文献
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通过对金川矿区竖井工程岩石情况、设计、施工等方面的类比,总结了金川矿区竖井的一般支护方式、合理的施工进度,对金川矿区在建及今后竖井工程的设计、施工有很好的借鉴作用。 相似文献
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本文根据1995年底对俄罗斯国家几家建井单位及施工现场的考察结果,归纳分析了俄罗斯国家的竖进施工技术现状,指出了值得国内借鉴的技术和经验。 相似文献
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介绍了大吉山钨矿明副竖井采用混合作业的施工机械化设备系统的布置、实施及主要特点,该系统根据井筒的直径和深度,采用了国内先进适用的施工新技术、新工艺、新装备,实行滚班正规循环作业,实现了立井井筒的快速优质安全施工。 相似文献
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在整个矿山建设工程中,竖井施工结束后,由竖转平施工中段及溜破系统等工程成为制约建井工期的关键因素。由于各个矿山的特点和要求不同,对于无法立即进行井筒永久装备的工程来说,此时利用凿井期间的施工装备来施工中段工程就成了建设及施工单位的共同选择。对于非煤矿山而言,大量无轨设备的使用使得罐笼+有轨矿车运输提升成为了过去式,同时,多中段同时施工也给矿井提升系统带来各种问题,如何保证多中段同时施工的提示系统安全运转,也就成为了一个新的课题。 相似文献
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测量不确定度及其评定步骤、方法浅析 总被引:1,自引:0,他引:1
阐述测量不确定度定义与来源,及其在实践中的应用形式,按照测量不确定的评定步骤,对如何正确评定测量不确定度以及评定方法提出自己的观点,同时指出评定中的难点及其处理方法。 相似文献
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位于海边仅15m左右的仓上金矿新立矿区主竖井利用并结法施工。由于夏季施工以及竖井旁海水养殖厂水位影响导致冻结壁难以形成,最终采取降水法使冻结成功。 相似文献
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Describes a unit of health status, the "Well-Year," which expresses the output of health programs in terms of the number of years and the health-related quality of life produced by a treatment or program. Dividing the cost of the program by the number of Well-Years that it produces gives the cost–utility of the program. This cost–utility ratio can be used in a general health policy model to compare the efficiency of different programs or to assess the relative contribution of different programs and providers in the health-care system. Different components of the model are useful (1) for the effectiveness of medical interventions, (2) to assess the quality of care, (3) to improve clinical decision making, (4) to assess needs of different populations, and (5) to understand causes of variations in health. A comprehensive standardized measure of health status has many advantages for health planning, decision analysis, and program evaluation. An example demonstrates how the relative production of Well-Years by psychologists might be compared to the contribution of other health-care services. (66 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Howren M. Bryant; Christensen Alan J.; Karnell Lucy Hynds; Funk Gerry F. 《Canadian Metallurgical Quarterly》2010,29(1):65
Objective: Symptoms of depression are common in those with cancer. The authors investigated whether depressive symptoms assessed before the initiation of cancer treatment predicted diminished health-related quality of life (HRQOL) at follow-up. Design: As part of a large, prospective study of oncologic outcomes, 306 patients with head and neck cancer (HNC) were assessed on several clinical and psychosocial characteristics during a pretreatment clinic visit and then at 3- and 12-month follow-up appointments. Main Outcome Measures: Depressive symptomatology was assessed with the Beck Depression Inventory and HNC-specific HRQOL (main outcome measure) was assessed with the Head and Neck Cancer Inventory. Results: Controlling for age, gender, marital status, cancer site, stage of disease, alcohol and tobacco use, comorbidity status, and pretreatment HRQOL, simultaneous multiple regression analyses revealed that depressive symptoms present at study enrollment, before the initiation of cancer treatment, significantly predicted lower HRQOL at 3- and 12-month follow-up assessments across the 4 HNC-specific domains of speech, eating, aesthetics, and social disruption (all ps ≤ .01). Conclusion: Results suggest that depressive symptomatology present near the time of diagnosis can have a significant, deleterious impact on HRQOL over time in HNC survivors. Thus, it may be useful to assess depression at diagnosis to identify individuals at greater risk for poor HRQOL outcomes. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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本文论述了我国地质实验室在地质勘查工作中的作用;重点介绍了近年来发展所取得的成绩;分析了发展过程中存在的一些问题;对地质实验室建设与管理进行了一些探讨。 相似文献
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新城金矿主溜矿井塌落破坏分析及其修复 总被引:1,自引:1,他引:0
新城金矿主溜矿井曾发生塌落事故,造成了主竖井矿石提升系统的瘫痪,严重影响了矿山生产任务的完成。为尽快恢复主竖井矿石提升系统的正常生产,在主溜矿井的修复过程中,采取了一系列行之效的施工措施,确保在最低限度影响生产的前提下,成功地修复了主溜矿井, 相似文献