本文選題：富水破碎帶　切入點：突水突泥　出處：《山東大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：突水突泥是隧道建設(shè)過程中的重大災(zāi)害,往往會造成嚴重的人員傷亡和經(jīng)濟損失。因此,系統(tǒng)的研究引發(fā)突水突泥災(zāi)害的地質(zhì)特征,并總結(jié)針對富水破碎帶型突水突泥的超前地質(zhì)預(yù)報技術(shù)和災(zāi)害防治技術(shù)對隧道施工安全和災(zāi)害防治具有很大實用價值。本文通過對突水突泥災(zāi)害定義和類型的分析,表明導(dǎo)致隧道突水突泥災(zāi)害發(fā)生的首要因素是地質(zhì)因素,其次是水文和工程因素。富水?dāng)鄬悠扑閹Ш统渌芏词菍?dǎo)致災(zāi)害發(fā)生的首要原因,所以為了防止災(zāi)害發(fā)生需要在隧道施工過程中進行超前地質(zhì)預(yù)報并及時采取超前注漿等處治措施。本文對地震波法中的TSP技術(shù)和短期預(yù)報常用的地質(zhì)雷達預(yù)報技術(shù)的理論原理、預(yù)報流程和結(jié)果解譯判斷準(zhǔn)則進行了闡述,重點研究了富水不良地質(zhì)體在不同預(yù)報方法探測結(jié)果中的表現(xiàn)形式和響應(yīng)特征,并結(jié)合其各自的特點和適應(yīng)范圍的基礎(chǔ)上建立了“地質(zhì)勘查+TSP+地質(zhì)雷達+超前鉆探”的綜合超前地質(zhì)預(yù)報的體系。以此體系為基礎(chǔ)在羊倉巖Ⅱ號隧道中將幾種超前預(yù)報技術(shù)進行了組合應(yīng)用,揭示了隧道施工中遇到的不良地質(zhì),通過開挖資料與預(yù)報結(jié)果分析,證明綜合超前預(yù)報模式的準(zhǔn)確率和可靠性。本文對注漿方案的設(shè)計、注漿過程的實施和注漿效果的評價進行了總結(jié)。堵水注漿方案有全斷面超前預(yù)注漿、周邊帷幕注漿漿等,加固的范圍要考慮注漿段長度、注漿擴散半徑和注漿孔布置間距三個方面。注漿實施時,注漿準(zhǔn)備工作一般從止?jié){墻施作、引流排水和加強支護三個方面展開,注漿效果的評價具體來說有物探法、參數(shù)分析法、檢查孔法、開挖取樣法和變形監(jiān)測法等。結(jié)合羊倉巖Ⅱ號隧道某段富水破碎帶進行全斷面超前預(yù)注漿應(yīng)用,制定了大跨度隧道全斷面預(yù)注漿堵水技術(shù)的設(shè)計方案及施工技術(shù),注漿后通過開挖驗證,掌子面穩(wěn)定性明顯改善,圍巖滲透率降低,證明實施方案可有效的對該富水破碎帶進行加固,可以較好的為類似地質(zhì)條件隧道施工中的災(zāi)害治理方案設(shè)計提供參考。
[Abstract]:Water and mud inrush is a major disaster in the process of tunnel construction, which often results in serious casualties and economic losses. It is concluded that the advanced geological prediction technology and disaster prevention technology for water-rich broken zone type of water inrush mud have great practical value for tunnel construction safety and disaster prevention. This paper analyzes the definition and type of water-inrush mud disaster. The results show that geological factors are the primary factors leading to the water inrush and mud inrush in tunnels, and the hydrological and engineering factors are the second. The fracture zone of water-rich faults and water-filled caverns are the primary causes of the disasters. Therefore, in order to prevent disasters, it is necessary to carry out advanced geological prediction in the course of tunnel construction and to take timely treatment measures such as advance grouting. This paper deals with the theoretical principles of the TSP technique in seismic wave method and the geological radar prediction technology commonly used in short-term prediction. The prediction process and the criterion of interpretation and judgment of the results are expounded, and the forms and response characteristics of the poor geological bodies with rich water in the detection results of different prediction methods are studied. Combined with their respective characteristics and adaptive scope, the comprehensive advanced geological prediction system of "geological exploration TSP geological radar advanced drilling" is established. Based on this system, several kinds of advanced geological prediction systems are developed in Yangcanyan 鈪，

本文編號：1638520