本文關(guān)鍵詞： 鐵路隧道 斷層 涌水量 網(wǎng)絡(luò)模型 灰色理論　出處：《天津大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：通常在鐵路隧道勘察設(shè)計(jì)階段，通過現(xiàn)場(chǎng)水文試驗(yàn)獲取水文地質(zhì)參數(shù)，進(jìn)而計(jì)算出隧道的可能涌水量。但是在實(shí)際操作中，現(xiàn)場(chǎng)試驗(yàn)受試驗(yàn)條件控制往往難以實(shí)施，只能采用相關(guān)地層水文地質(zhì)參數(shù)的經(jīng)驗(yàn)值，而隧道實(shí)際開挖時(shí)，隧道圍巖應(yīng)力狀態(tài)發(fā)生變化，勘察設(shè)計(jì)階段劃分富水段落與實(shí)際涌水段落也存在較大差異，受諸多的不利因素影響，，導(dǎo)致涌水量計(jì)算值與隧道開挖時(shí)實(shí)際涌水量偏差較大，不利于隧道施工建設(shè)與運(yùn)營(yíng)安全。 本文以某鐵路特長(zhǎng)隧道斷層涌水段落為研究對(duì)象，在前期野外調(diào)查、物探、鉆探的基礎(chǔ)上，采用數(shù)值模擬方法對(duì)隧道研究區(qū)建立概念模型進(jìn)行應(yīng)力分析，直接模擬施工開挖后隧道可能的應(yīng)力集中段落，針對(duì)應(yīng)力集中部位進(jìn)行鉆探取樣，通過無(wú)損檢測(cè)技術(shù)對(duì)試樣內(nèi)部孔隙結(jié)構(gòu)進(jìn)行掃描，采用孔隙網(wǎng)絡(luò)模型對(duì)試樣結(jié)構(gòu)進(jìn)行三維重建，預(yù)測(cè)巖土樣的水文地質(zhì)相關(guān)參數(shù)，從而計(jì)算隧道涌水量。當(dāng)隧道實(shí)際開挖后，采用灰色理論的GM（1,1）模型對(duì)隧道施工后涌水量變化情況分析和預(yù)測(cè)，形成了一套從勘察、設(shè)計(jì)到施工各個(gè)階段預(yù)測(cè)隧道實(shí)際涌水情況的研究方法。
[Abstract]:Usually in the phase of railway tunnel investigation and design, hydrogeological parameters are obtained by field hydrological test, and then the probable water discharge of tunnel is calculated. However, in practical operation, the field test is often difficult to be carried out under the control of test conditions. The experimental values of hydrogeological parameters can only be used, and the stress state of surrounding rock changes when the tunnel is actually excavated, and there is also a great difference between the rich water section and the actual water inflow section in the phase of investigation and design. Due to the influence of many unfavorable factors, the calculation value of water inflow is quite different from the actual water inflow during tunnel excavation, which is not conducive to the safety of tunnel construction and operation. On the basis of field investigation, geophysical exploration and drilling, a numerical simulation method is used to analyze the stress of the conceptual model established in the study area of the tunnel, taking the section of fault gushing in a railway tunnel as the research object, and on the basis of field investigation, geophysical exploration and drilling in the early stage. Direct simulation of the possible stress concentration section of the tunnel after construction excavation, drilling sampling for the stress concentration site, and scanning the pore structure of the sample by non-destructive testing technology. The pore network model is used to reconstruct the sample structure, and the hydrogeological parameters of the rock and soil samples are forecasted, so as to calculate the water inflow of the tunnel. This paper analyzes and forecasts the variation of water inflow after tunnel construction by using the GM1 / 1) model of grey theory, and forms a set of research methods for predicting the actual water inflow of tunnel from reconnaissance, design to construction stages.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U452.11

【共引文獻(xiàn)】

相關(guān)期刊論文 前4條

1 蔣萬(wàn)軍;;搗固車整體數(shù)字化預(yù)測(cè)量技術(shù)應(yīng)用研究[J];高速鐵路技術(shù);2014年05期

2 閆利成;李國(guó)輝;;GPS-RTK技術(shù)在某鐵路專用線工程的應(yīng)用[J];內(nèi)蒙古科技與經(jīng)濟(jì);2014年23期

3 劉江川;;大西客專精密工程測(cè)量控制網(wǎng)建立與復(fù)測(cè)技術(shù)[J];山西建筑;2015年03期

4 黃維;;福平鐵路平潭段精密測(cè)量控制網(wǎng)復(fù)測(cè)技術(shù)[J];山西建筑;2015年04期

相關(guān)碩士學(xué)位論文 前2條

1 尹業(yè)彪;基于連續(xù)觀測(cè)站的2000國(guó)家大地坐標(biāo)獲取方法研究[D];西安科技大學(xué);2014年

2 王智福;精密工程平面控制網(wǎng)復(fù)測(cè)方案設(shè)計(jì)與數(shù)據(jù)處理[D];江西理工大學(xué);2014年

本文編號(hào)：1494765