{"title":"有冻土的地震危险地区建筑物的设计和建造特点","authors":"Pavel Pegin, Daniil Filimonov","doi":"10.20295/1815-588x-2023-4-878-890","DOIUrl":null,"url":null,"abstract":"Purpose: Analysis of accumulated experience in the design and construction of buildings in areas with permafrost and seismic activity. Methods: Statistical and analytical methods have been applied. Results: The areas of distribution of both permafrost soils and seismics on the territory of Russia are considered. The review and analysis of the principles of construction on permafrost soils is given. 2 main methods of preserving the foundation soils in a frozen state using principle I of construction and 3 combined options when pairing a pile foundation with a ventilated underground, filling and cooling devices are considered and analyzed. The conclusion is made about the construction using principle I, where a pile foundation with a high pile grillage and a ventilated underground is preferred as a foundation, since the piles of this foundation act as a flexible connection between the aboveground part of the building and the base. In case of seismic impact, this foundation perceives the action of vertical and horizontal seismic loads, as well as the action of the tipping moment. In the case when it is impossible to keep the foundation in a frozen state under buildings, it is necessary to use principle II, which is implemented due to the coefficient of safety and rigidity of building structures, as well as pre-construction measures aimed at thawing, pre-compaction or partial replacement of natural subsidence soils, increasing the depth of foundation laying or regulation of the thawing zone due to planning decisions or applications of devices for heat removal. It is revealed that spatial foundation platforms are effective earthquake-resistant structures of foundations on permafrost soils using principle II in conditions of seismic activity. The analysis of the design experience on permafrost soils in seismically active areas is carried out. Practical significance: It is proposed to use principle I of construction of earthquake-resistant buildings on permafrost soils (in cases where permafrost preservation is possible).","PeriodicalId":273874,"journal":{"name":"Proceedings of Petersburg Transport University","volume":"23 14","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Features of Design and Construction of Buildings in Seismically Hazardous Areas with Permafrost Soils\",\"authors\":\"Pavel Pegin, Daniil Filimonov\",\"doi\":\"10.20295/1815-588x-2023-4-878-890\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Purpose: Analysis of accumulated experience in the design and construction of buildings in areas with permafrost and seismic activity. Methods: Statistical and analytical methods have been applied. Results: The areas of distribution of both permafrost soils and seismics on the territory of Russia are considered. The review and analysis of the principles of construction on permafrost soils is given. 2 main methods of preserving the foundation soils in a frozen state using principle I of construction and 3 combined options when pairing a pile foundation with a ventilated underground, filling and cooling devices are considered and analyzed. The conclusion is made about the construction using principle I, where a pile foundation with a high pile grillage and a ventilated underground is preferred as a foundation, since the piles of this foundation act as a flexible connection between the aboveground part of the building and the base. In case of seismic impact, this foundation perceives the action of vertical and horizontal seismic loads, as well as the action of the tipping moment. In the case when it is impossible to keep the foundation in a frozen state under buildings, it is necessary to use principle II, which is implemented due to the coefficient of safety and rigidity of building structures, as well as pre-construction measures aimed at thawing, pre-compaction or partial replacement of natural subsidence soils, increasing the depth of foundation laying or regulation of the thawing zone due to planning decisions or applications of devices for heat removal. It is revealed that spatial foundation platforms are effective earthquake-resistant structures of foundations on permafrost soils using principle II in conditions of seismic activity. The analysis of the design experience on permafrost soils in seismically active areas is carried out. Practical significance: It is proposed to use principle I of construction of earthquake-resistant buildings on permafrost soils (in cases where permafrost preservation is possible).\",\"PeriodicalId\":273874,\"journal\":{\"name\":\"Proceedings of Petersburg Transport University\",\"volume\":\"23 14\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-12-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of Petersburg Transport University\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.20295/1815-588x-2023-4-878-890\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of Petersburg Transport University","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.20295/1815-588x-2023-4-878-890","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
目的:分析在永久冻土和地震活动地区设计和建造建筑物方面积累的经验。方法:采用统计和分析方法:采用统计和分析方法。结果:考虑了俄罗斯境内冻土和地震分布地区。对在冻土层上施工的原则进行了回顾和分析。考虑并分析了使用施工原则 I 在冻结状态下保护地基土的 2 种主要方法,以及将桩基与通风地下、填充和冷却装置搭配的 3 种组合方案。得出的结论是,在采用施工原则 I 的情况下,应首选带有高桩格栅和通风地下结构的桩基础,因为这种地基的桩在建筑物的地上部分和基座之间起着柔性连接的作用。在地震影响下,这种地基可承受垂直和水平地震荷载以及倾覆力矩的作用。在建筑物下无法保持地基冻结状态的情况下,有必要采用原则 II,该原则的实施是基于建筑结构的安全系数和刚度,以及施工前的解冻措施、天然沉降土的预压实或部分置换、增加地基铺设深度或因规划决策或应用散热装置而对解冻区进行调节。结果表明,在地震活动条件下,利用原理 II,空间基础平台是冻土地基的有效抗震结构。对地震活跃地区冻土的设计经验进行了分析。实际意义:建议使用原则 I 在冻土上建造抗震建筑物(在可能保护冻土的情况下)。
Features of Design and Construction of Buildings in Seismically Hazardous Areas with Permafrost Soils
Purpose: Analysis of accumulated experience in the design and construction of buildings in areas with permafrost and seismic activity. Methods: Statistical and analytical methods have been applied. Results: The areas of distribution of both permafrost soils and seismics on the territory of Russia are considered. The review and analysis of the principles of construction on permafrost soils is given. 2 main methods of preserving the foundation soils in a frozen state using principle I of construction and 3 combined options when pairing a pile foundation with a ventilated underground, filling and cooling devices are considered and analyzed. The conclusion is made about the construction using principle I, where a pile foundation with a high pile grillage and a ventilated underground is preferred as a foundation, since the piles of this foundation act as a flexible connection between the aboveground part of the building and the base. In case of seismic impact, this foundation perceives the action of vertical and horizontal seismic loads, as well as the action of the tipping moment. In the case when it is impossible to keep the foundation in a frozen state under buildings, it is necessary to use principle II, which is implemented due to the coefficient of safety and rigidity of building structures, as well as pre-construction measures aimed at thawing, pre-compaction or partial replacement of natural subsidence soils, increasing the depth of foundation laying or regulation of the thawing zone due to planning decisions or applications of devices for heat removal. It is revealed that spatial foundation platforms are effective earthquake-resistant structures of foundations on permafrost soils using principle II in conditions of seismic activity. The analysis of the design experience on permafrost soils in seismically active areas is carried out. Practical significance: It is proposed to use principle I of construction of earthquake-resistant buildings on permafrost soils (in cases where permafrost preservation is possible).