查询词典 underground tunnel

In this paper we combining connecting tunnel project of Subway Line 4 at Xidan-lingjing bystreet in Beijing. To aim at the difficulties of building large-span connecting tunnels in the fine sand layer, through roads and underground pipelines, construction nearby buildings and other project difficulties. Using theoretical analysis, numerical simulation, field tests and other research methods to comprehensive and systemic research the stratum deformation mechanism and process control techniques of shallow excavation method, and a series of results were obtained. Firstly, use the stochastic media theory to analyze the stratum deformation mechanism, concretely analyze the analytic equation of surface horizontal displacement and deformation which were caused by the excavation of single-hole and double-hole tunnel, and further discussion on ground settlement, vertical deformation, surface horizontal displacement and horizontal deformation. Analyzing the main influence factors of surface displacement, and combined with practical work to proof the theory which was applied to shallow buried single-hole tunnel in fine sand layer was scientific.

本文结合北京地铁四号线西单～灵境胡同渡线隧道工程，针对在粉细砂地层中修建大跨渡线隧道，下穿道路和地下管线，临近建筑物施工等工程难点，利用理论分析、数值模拟、和现场监测等多种研究手段，对浅埋暗挖隧道地层变位机理及控制技术，深入地进行全面和系统的研究，并取得以下成果：(1)引入随机介质理论，对地层变位机理进行了分析，具体分析了单、双孔隧道开挖引起的地表位移及变形的解析方程，并深入探讨了地表沉降、垂直变形、地表水平位移和水平变形的特点，同时分析了影响地表位移的主要因素，并结合工程实例，佐证该理论应用于粉细砂地层浅埋暗挖单孔地铁隧道的科学性。

The main environment geological question is: The earth"s crust where the faultage and earthquake are active is unstable; collapse , landslide, mud-rock flow and soil erosion ; The underground karst subsides, seepage question; Basic rock expand, expend and compress soil body, the salt deposit corrode out of shape and groundwater"s corrodent harm; The soft soil question of basin; The soft rock body, cracked rock and the weathering rock are relatively poor stability; High and cold regional highways and railways" frozen soils freeze and melt calamity problem; The around rock of tunnel are unstable because of the coal seam gas, spring water, underground developed area; Project cutting slopes, constructed abandon soil and reservoir, lake"s ecology geological environmental protection issue; Thedangerous shoal of the channel % submerged reef question; The problem of rebuilding channel project and dock etc.; And the problem of unstable ground and groundwater corrosivity during building airport; At the same time, with the international big pathways" implementation and completions of constructions, adjusting the cities and counties" constructions , the crowd occupy changing , the cultivated land distribute changing and the adjustments of structure, will cause local environmental geological issues outstanding; According to multiple statistical analysis , value calculate and integrated appraise result, in the northwest and southwest of Yunnan, the traffic relatively low density, traffic engineering is relatively weak impact on environment, It is the area where a environme

主要的环境地质问题是：活动性断裂、地震带的地壳不稳定；崩塌、滑坡、泥石流及水土流失；地下岩溶塌陷、渗漏问题；基础岩体膨胀、胀缩土体、含盐层侵蚀变形和地下水的腐蚀危害；盆地软土问题；软弱岩体、碎裂、风化岩体稳定性较差；高寒地带公路、铁路建设的冻土冻融灾害问题；煤层瓦斯、涌水、地下采空区等隧道围岩不稳定问题；工程切坡、施工弃土及水库、湖泊生态地质环境保护问题；航道险滩、暗礁问题；渠化工程、码头等库岸再造问题；以及机场建设中的不稳定地基及地下水腐蚀性问题；同时，随着大通道建设的实施和完成，城镇建设的调整、人群居落的变化和耕地分布及结构的调整组合，都可能造成局部环境地质问题的突出等等。经多元统计分析数值计算、综合评价结果，滇西北、滇西南地区交通密度较低，交通工程对环境的影响程度较弱，是环境地质状况好的区域；有主要高原湖泊分布区的，包括昆明、个旧、文山的滇东南区域，环境地质状况较好；大姚、楚雄、篙明及会泽、昭通一镇雄的区域，即滇中北部中生界红层和滇东北岩溶区，环境地质状况中等；而包括保山、德宏、大理、临沧的滇西地区及景东一墨江以东、双柏一石屏一河口以西及东川一寻甸一曲靖地段的滇中一滇东地区，环境地质状况较差。云南国际大通道建设涉及全省区域，如何利用地质环境、实现可持续发展，就必须依赖于国际大通道建设与地质环境之间良性关系的建立。应本着对区域地质环境客观存在的科学认识原则、建设过程中环境效益优先的可持续发展原则、法制性原则、对大通道建设中环境地质的因地制宜及其可防治性原则。并且从组织管理、不同类型大通道、不同环境地质问题类型等方面，提出了对策措施。最后，提出了建立国际大通道建设与环境地质良性关系的宏观建议。

On the basis of the knowledge highway's ruin of the past, in high earthquake intensity area of highway, underground structure may be fall into ruin for the seismic motion, especially, the entrance of tunnel is the weakest of the tunnel. As based on the soil-structure interaction model, adopting the soft of FLAC3D and numerical analysis method, the tunnel entrance has been computed by the elastic and plastic method, the results obtained are discussed and the measures for design and solution are presented.

根据以往的受震破坏经验，在公路隧道的高烈度地震带，地下工程可能会遭受严重震害，尤其洞口段为抗震薄弱区，本文采用FLAC3D软件，从土－结构相互作用模型出发，运用数值分析方法对隧道洞口段进行了三维弹性和弹塑性分析，得出了相应结论，并对结果进行分析，指出隧道抗减震设计中应注意的事项，并提出相应解决措施。

The key structures of underground powerhouse of Baise multipurpose dam project is accommodated in the diabase stratum, of which most sections of the headrace tunnel, delivery tunnel and other caverns most are accommodated in unfavorable stratum composed of mudstone, silicalite and carbonaceous silicalite.

百色水利枢纽工程地下厂房主体布置在辉绿岩地层当中，其中的引水系统、交通洞等洞室大部分洞段布置在由泥岩、硅质岩和含碳硅质岩等组成的不良地层下。

We developed two kinds of new products for low-power and high-resolution mine shallow seismograph, mine geology detector and mine tunnel predictor. By field experimental verification, they can solve effectively the detecting problem of small geological structure and coal seam thickness around underground coal mine tunnel. Their performance and function of reached or exceeded the level of domestic similar products, and their power consumption (≤4W) is lower than the advanced high-resolution shallow seismographs at home and abroad.

开发出两款低功耗高分辨率矿井浅层地震仪产品——矿井地质探测仪和矿井巷道超前探测仪，通过现场试验验证，其可有效地解决煤矿井下巷道四周浅层地质小构造勘探和煤层厚度探测问题，仪器性能和功能达到或超过国内同类产品水平，且仪器的功耗(≤4W)小于国内外先进的高分辨率浅层地震仪产品

This paper aims at the construction safety and work requirement of underground runnel, and integrates the new technology of modern engineering survey in order to discuss the shield tunnel survey and the underground deformation monitoring.

本文针对地铁隧道安全施工和运营需求，结合现代工程测量新技术，从理论和方法上探讨盾构隧道测量和地铁变形监测，介绍了盾构法地铁隧道贯通误差的分配特点，测距仪竖井高程传递的方法与中误差公式，推导了全站仪三维变形测量中自由设站法和附合导线法的相关误差方程式，提出了解决地铁隧道不均匀沉降的初步设想。

Excavations as well as utilization of urban underground space put forward a higher demand for tunnel and underground engineering in quantity, quality and technology, along with the development of economy, science and technology.

21世纪是地下空间的世纪，随着科学技术和经济的发展，交通、水利、水电、采掘和城市地下空间的利用等对隧道和地下工程的数量、质量和难度上提出了更高的要求。

Digging an underground tunnel, and you go blow air guns blasting enemies you have two types of enemies: Pookas and Fygars.

挖掘地下隧道，用你的空气枪去吹爆你的敌人敌人有两类：Pookas和Fygars。

Brennan and Booth stumble upon a subterranean world of homeless people when they find the remains of a filmmaker in the ventilation shaft of an underground tunnel.

Brennan和Booth偶然发现了一个聚集无家可归之人的地下城市，他们找到一个制片人在通风竖井的地下隧道的残骸。

In 1963 several British coal miners found a stairs to the underground shaft when they excavated a tunnel in England. They heard clear sounds of movements of mechanical units from underground. But, soon the stairs and the entrance to the underground shaft disappeared without a trace.

1963年，英国的几名煤矿工人在挖掘一条隧道时发现一个通向地下井的楼梯，在楼梯口听到了地底下有清晰的机械运动声音，但楼梯和通向地下井的入口不一会儿就都消失得无影无踪了。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。