03957nam a22005175i 4500001001800000003000900018005001700027007001500044008004100059020003700100024003500137050001000172050001600182072001600198072002300214072001500237100008600252245010400338250001800442264006900460300006400529336002600593337002600619338003600645347002400681490006100705505029900766520178901065650003702854650002702891650002702918650002402945650002502969650006002994650003603054650003503090710003403125773002603159776003603185776003603221776003603257830006803293856004603361912001503407999001703422978-3-031-51900-0DE-He21320251030111822.0cr nn 008mamaa240417s2024    sz |    s    |||| 0|eng d  a97830315190009978-3-031-51900-07 a10.1007/978-3-031-51900-02doi 4aTA712 4aTA800-820.2 7aTNC2bicssc 7aTEC0091502bisacsh 7aTNC2thema1 aJaparidze, Levan.eauthor.4aut4http://id.loc.gov/vocabulary/relators/aut97531210aServiceability Limit States of Underground Structuresh[electronic resource] /cby Levan Japaridze.  a1st ed. 2024. 1aCham :bSpringer Nature Switzerland :bImprint: Springer,c2024.  aXIV, 224 p. 59 illus., 2 illus. in color.bonline resource.  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  atext filebPDF2rda1 aSynthesis Lectures on Mechanical Engineering,x2573-31760 aGeneral information and basic concept -- Stress-strain state of a rock mass -- Stressed state of the rock mass around the excavation -- Interaction of a rock mass with the support system -- Limit states of supports of underground structures -- Limit state analysis of the underground structure.  aThe main topic of this book is the calculation of underground structures at the limit states of serviceability. It considers the main schemes typical for underground structures for various purposes, gives the corresponding mathematical models describing the main geo-mechanical and technological factors in the construction and operation of extended excavations. Generalized criteria are proposed for making a technically and economically justified solution of the problem of determining the optimal forms and sizes of workings, bearing capacity, type of support and its erection, depending on the structural features of the rock mass, the primary stress fields of gravitational, tectonic, seismic acting in it. and technological origins, operational requirements for extended excavations. The corresponding algorithms, block diagrams and specific numerical examples of calculations are given. In most of the existing calculation methods the structure is considered in the elastic stage, the strength limit of the bearing capacity is considered as the moment when the maximum internal stresses reach the corresponding design resistances of the material. If it is legitimate to use this criterion in certain cases of calculation of statically determinable structures operating in the given loading mode, then in cases where the support operates in the mode of mutually influencing deformation together with the rock mass, it leads to a significant waste of material. In addition, this book: Describes contemporary methods for calculating the limit states of underground structures Covers a wide range of mining and geomechanical conditions and loading modes of underground structures Considers various schemes of ground-structure and modes of failure for different kinds of structures. 0aUnderground construction.974420 0aRock mechanics.968827 0aSoil mechanics.968828 0aFoundations.968826 0aEngineering geology.14aUnderground Engineering and Tunnel Construction.97442124aSoil and Rock Mechanics.96883024aFoundation Engineering.9688292 aSpringerLink (Online service)0 tSpringer Nature eBook08iPrinted edition:z978303151899708iPrinted edition:z978303151901708iPrinted edition:z9783031519024 0aSynthesis Lectures on Mechanical Engineering,x2573-317696554540uhttps://doi.org/10.1007/978-3-031-51900-0  aZDB-2-SXSC  c59181d59181