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- During the construction of urban underground engineering ,there are some problems, such as penetrative destruction, dewatering in local, uplift pressure and corrosivity etc. 城市地下工程在其施工过程中常因渗透破坏、降水、浮托力、腐蚀性等问题,严重影响地下工程的建设和周围建筑环境的安全。
- urban underground engineering 城市地下工程
- Urban underground pipeline is the lifeline in a city. 城市地下管线系统是城市的“生命线”。
- Wall rock is a special medium of underground engineering and its stability affects directly production and safety. 摘要围岩是地下工程类特殊的介质，其稳定性直接影响到生产和安全。
- Coupled unsaturated flow in claystone has high effect on strength and stability of underground engineering. 非饱和渗流、应力耦合行为是影响粘土类工程岩体的强度和稳定性的重要因素。
- The method of Water?jetting for building wall is a new developing technique for processing underground engineering. 射水造墙法是为江河堤防隐蔽工程施工而开发出的一项最新技术。
- Firstly, summarize the progress in the research of the urban underground space development theory to provide the relevant theoretical support. 首先总结城市地下空间分层开发理论的研究进展，为本文的开展提供相关的理论支持。
- Ventilation is a very important process in rock excavation by blasting in underground engineering. 地下工程钻爆开挖过程中，通风排烟是重要的一环。
- The basic purpose of urban underground space development is to strengthen urban functions and to improve urban environments by using underground space. 城市地下空间开发的基本目的是利用地下建筑空间完善城市功能,改善城市环境质量。
- The tabular concrete foundation in architectural engineering is of underground engineering. 建筑工程板状砼地基属地下工程，其施工质量的检测与控制难度较大。
- The research of underground engineering is necessary and worthy because its indetermination. 地下工程因其隐蔽性和不确定性而体现研究必要性和价值。
- Today, under the advancement of technology and the correlative research, that urban underground space exploiting becomes an advantage of later development. 在技术进步、经济发展的今天，中国大都市地下空间开发利用的后发优势成为可能。
- The main problems are analyzed in the course of arc hives management of urban underground pipelines based on the characteristics and actualities of urb an underground pipeline. [摘要] 从城市地下管线的特点以及其现状入手，剖 析了城市地下管线档案管理过程中存在的主要问题，提出了加强和改善城市地下管线档 案管理的有效措施。
- High-level radwaste repository is a special underground engineering project that involves a great number of rock mechanics problems. 高放废物处置库是一个特殊的深部地下工程,涉及大量的岩石力学问题。
- HDD) , the main method in Trenchless Technology, has become widely used for urban underground installation of new pipelines with its unique technical advantages. 随着非开挖技术的迅猛发展,水平定向钻进(HDD)技术以其独特的技术优势,在目前城市地下管线铺设工程中起着越来越重要的作用。
- The strata movement and the ground surface subsidence caused by underground mining are serious underground engineering problems. 地下开采引起的岩层移动和地表沉陷是一个非常严重的地下工程问题。
- Groundwater is the extraordinarily precious resources,but its negative influences to underground engineering should not be ignored. 地下水是宝贵的自然资源,同时给地下工程带来的负面影响不容忽视。
- Rockburst is a kind of geological disaster,it threatens the safety of workmen and equipments in underground engineering. 岩爆是一种地质灾害,极大地威胁着地下工程施工人员和设备的安全。
- Therefore, the application of MDO in underground engineering is still at a stage of exploration and expected to be further researched. 因此，多学科优化设计在地下工程中的应用还处于探索阶段，有待深入研究。
- As one of the geological hazards, rockburst is often met in underground engineering under excavation unloading conditions in high geostress areas. 岩爆是高地应力区地下工程中常见的一种卸荷破坏地质灾害现象。
