發(fā)布時(shí)間：2018-06-19 14:59

  本文選題：巖石力學(xué) + 水平鹽穴　； 參考：《巖石力學(xué)與工程學(xué)報(bào)》2017年S1期

【摘要】：從體積方面考慮水平鹽穴適合于我國(guó)較薄的層狀鹽巖,但它有可能與夾層相交。為分析夾層對(duì)水平鹽穴應(yīng)力和破損的影響,建立一種含夾層水平鹽穴的模型�；趭A層單元受力平衡和界面上荷載傳遞機(jī)制,推導(dǎo)出界面和夾層的應(yīng)力解析解。并將應(yīng)力公式與莫爾 庫(kù)侖準(zhǔn)則相結(jié)合,對(duì)界面滑移和圍巖塑性區(qū)進(jìn)行分析。研究表明:界面剪應(yīng)力與鹽巖夾層的相對(duì)位移成正比;鹽穴附近界面剪應(yīng)力最大,該處最易發(fā)生界面滑移,并且界面剪應(yīng)力隨夾層彈性模量和夾層厚度增大;夾層的平衡方程表明夾層徑向應(yīng)力的導(dǎo)數(shù)與界面剪應(yīng)力有關(guān),而界面剪應(yīng)力的方向在中性點(diǎn)發(fā)生改變,所以?shī)A層徑向應(yīng)力先減小再增大;主應(yīng)力σ_1和σ_3分別為切向應(yīng)力和徑向應(yīng)力,夾層切向應(yīng)力和鹽巖相等,而夾層徑向應(yīng)力小于鹽巖,所以?shī)A層塑性區(qū)的范圍大于鹽巖。
[Abstract]:In terms of volume, horizontal salt caverns are suitable for thin layered salt rocks in China, but they may intersect with intercalation. In order to analyze the effect of intercalation on the stress and damage of horizontal salt hole, a model of horizontal salt hole containing interlayer was established. Based on the stress balance of interlayer element and the mechanism of load transfer on interface, the analytical solution of stress between interlayer and interlayer is derived. The stress formula is combined with the Mohl Coulomb criterion to analyze the interfacial slip and the plastic zone of surrounding rock. The results show that the interfacial shear stress is proportional to the relative displacement of the salt intercalation, the interfacial shear stress is the largest near the salt hole, and the interfacial shear stress increases with the intercalation elastic modulus and the interlayer thickness. The equilibrium equation shows that the derivative of intercalation radial stress is related to the interfacial shear stress, and the direction of interfacial shear stress changes at the neutral point, so the radial stress of intercalation decreases first and then increases. The principal stress 蟽 _ 1 and 蟽 _ 3 are tangential stress and radial stress respectively, intercalation tangential stress is equal to salt rock, and intercalation radial stress is smaller than salt rock, so the range of intercalation plastic zone is larger than that of salt rock.
【作者單位】： 中國(guó)科學(xué)院武漢巖土力學(xué)研究所巖土力學(xué)與工程國(guó)家重點(diǎn)實(shí)驗(yàn)室;重慶大學(xué)煤礦災(zāi)害動(dòng)力學(xué)與控制國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(41272391,51404241,41472285)~~
【分類號(hào)】：TU45

【相似文獻(xiàn)】

相關(guān)期刊論文 前1條

1 王漢鵬;李建中;冉莉娜;李建明;張慶賀;;鹽穴造腔模擬與形態(tài)控制試驗(yàn)裝置研制[J];巖石力學(xué)與工程學(xué)報(bào);2014年05期

相關(guān)會(huì)議論文 前1條

1 陳雨;李曉;侯正猛;赫建明;馬超鋒;;不同腔形下鹽巖儲(chǔ)庫(kù)區(qū)地表最大變形預(yù)計(jì)新方法[A];中國(guó)科學(xué)院地質(zhì)與地球物理研究所2012年度（第12屆）學(xué)術(shù)論文匯編——工程地質(zhì)與水資源研究室[C];2013年

，

本文編號(hào)：2040272