Besides , based on the theoretical study , a corresponding coupling program with 3 - d elastic - plastic finite element and infinite element is developed . according to the above contents , the effects of stability and safety of the surrounding rocks of different characteristics , different classes and under different construction methods are analyzed , the good and bad about different construction methods under the condition of the same kind of surrounding rock are compared , and some useful conclusions are drawn 此外,在本文理論研究的基礎(chǔ)上開(kāi)發(fā)出相應(yīng)的三維彈塑性有限元-無(wú)限元耦合計(jì)算機(jī)程序,并據(jù)此分析了雪峰山隧道在不同圍巖類別條件下,不同的施工開(kāi)挖方案對(duì)其結(jié)構(gòu)及圍巖穩(wěn)定性和安全性的影響,比較了相同圍巖條件下各種施工方案的優(yōu)劣,得出了一些有益的結(jié)論。
Associated with a project of the planned xuefengshan tunnel with 7 . 6 km long during the construction of shaoyang to huaihua expressway in hunan province of shanghai to ruili national trunk highway , this paper firstly makes an introduction of the frequently - used analysis & computation methods for tunnel supporting structure . then , based on the analysis of the basic theory about the interaction mechanism of surrounding rock and support structure , a spatial computation model is made , a coupling numerical computation method with 3 - d elastic - plastic finite element and infinite element is proposed , and a comprehensive analysis has been made to the effects of the overall stability and safety of the surrounding rocks of different characteristics , different classes and under different construction methods . and thus the problem of 3 - d infinite region to which applying the general finite ca n ' t do has been resolved 6公里的雪峰山隧道工程,首先介紹了隧道支護(hù)結(jié)構(gòu)的常用分析計(jì)算方法;然后通過(guò)對(duì)隧道施工過(guò)程中,洞室穩(wěn)定性與支護(hù)結(jié)構(gòu)相互作用機(jī)理的深入分析,建立了隧道施工過(guò)程的空間計(jì)算模型,提出了采用三維彈塑性有限元-無(wú)限元耦合的數(shù)值計(jì)算方法,綜合分析了隧道在不同圍巖特性和圍巖類別條件下,以及不同施工開(kāi)挖方案等對(duì)隧道圍巖整體穩(wěn)定和安全性的影響,從而解決了通用有限元方法難以解決的隧道三維無(wú)限域問(wèn)題;其可充分發(fā)揮有限元法在分析非線性方面的有效性和成熟性,以及無(wú)限元法在分析處理無(wú)限域和半無(wú)限域方面的精確性和簡(jiǎn)便性,為隧道施工過(guò)程中圍巖的穩(wěn)定性分析開(kāi)辟了一條新的途徑。
類別: classification; category; ge ...條件: condition; term; factor判別條件: criterion識(shí)別條件: condition for identification; identification condition特別條件: special conditions of contract差別條件作用: differential conditioning合約特別條件: special conditions of contract批租特別條件: special conditions of lease特別條件條款: special condition投標(biāo)特別條件: special conditions of tender識(shí)別條: identification strip類別: classification; category; genre; family; tier 屬于不同的類別 belong to different categories; 土壤的類別 classification of soil; 同一類別 belong to the same category; 類別電壓 category voltage; 類別功耗 category dissipation; 類別名 class name沒(méi)有別條路: no other way特別條款: special clause; special conditions; special terms合約特別條款: special conditions of contract批地特別條款: special conditions of grant分包合同特別條款: special conditions of sub-contract信用證特別條款: special conditionslcd類別: lcd typemhc類別: mhc class父類別: parent class類別;族群: class類別詞: classifier類別的: classificatory類別庫(kù): class library