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首页> 外文会议>Tenth International Conference on Cold Regions Engineering Putting Research into Practice August 16-19, 1999 Lincoln, New Hampshire >Deformations of Buildings in the Cryolithozone
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Deformations of Buildings in the Cryolithozone

机译：冻土带中建筑物的变形

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A problem of stability of buildings and structures in the permafrost zone has become essentially aggravated during the last decade. In cities of Northern Russia the tendency to develop mass-scale deformations of buildings and structures is observed. The Research Institute of Bases and Underground Structures (NIIOSP) has carried out complex research in order to reveal reasons for lowering of the bearing capacity of perennially frozen bases. It was determined that the basic reasons of deformations are negative technogenic impact on the geocryological and geoecological environment while global warming has not shown detectable influence on the bearing capacity of frozen bases. The NIIOSP has developed and experimentally proved a complex set of engineering-technical measures intended to stabilize the situation in large industrial centers of the Russian North as well as special methods for strengthening frozen bases. The emphasis is made on the application of artificial cooling through the tapping of natural stocks of cold in rocks. For separate deformed structures, cementation of local talik zones, hydrostatic pushing of piles by powerful jacks as well as attainment of maximum contact areas between foundations and surrounding permafrost have been applied.
机译：在过去的十年中，永久冻土区建筑物和结构的稳定性问题已变得更加严重。在俄罗斯北部城市，观察到建筑物和结构发生大规模变形的趋势。基底和地下结构研究所（NIIOSP）进行了复杂的研究，以揭示降低多年冻基底承载力的原因。已确定，变形的基本原因是对地质和地球生态环境的不利技术影响，而全球变暖尚未显示出可检测到的对冻土基岩承载力的影响。 NIIOSP已开发并通过实验证明了一套稳定的工程技术措施，旨在稳定俄罗斯北部大型工业中心的状况，并采用特殊方法来增强冰冻基础。重点是通过挖掘岩石中自然冷量来进行人工冷却。对于单独的变形结构，已应用了局部滑石带的胶结，强力千斤顶对桩的静水推力以及实现了地基与周围多年冻土之间的最大接触面积。

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