【摘要】：針對(duì)高地應(yīng)力及高水力梯度等復(fù)雜地質(zhì)環(huán)境下,深埋引水隧洞穿越組合富水?dāng)鄬悠扑閹Оl(fā)生突、涌水地質(zhì)災(zāi)害的問(wèn)題,以福建龍津溪引水隧洞為工程依托,提出基于平面一維流微分方程的引水隧洞組合富水?dāng)鄬涌厮Ｐ陀克坑?jì)算方法,并從斷層傾角和傾向2個(gè)角度考慮隧洞與斷層的位置關(guān)系,從而確定模型中的3種典型平面一維流涌水模式的幾何計(jì)算參數(shù)�；谒矶磁c斷層的空間位置關(guān)系,將計(jì)算區(qū)域劃分為3個(gè)計(jì)算子區(qū)間:Ⅰ區(qū)(隧洞處于普通圍巖)、Ⅱ區(qū)(隧洞處于斷層影響帶)和Ⅲ區(qū)(隧洞處于斷層破碎帶),分別對(duì)3個(gè)子區(qū)間的涌水量展開(kāi)計(jì)算,并通過(guò)分段積分得到整個(gè)區(qū)段總涌水量,其中Ⅱ和Ⅲ區(qū)受斷層以及高水力梯度的影響,需要考慮高速非達(dá)西修正。最后將理論計(jì)算結(jié)果與工程常用的裘布依公式、數(shù)值模擬計(jì)算以及現(xiàn)場(chǎng)實(shí)測(cè)數(shù)據(jù)進(jìn)行對(duì)比,結(jié)果表明該方法計(jì)算組合富水?dāng)鄬铀矶从克烤哂星袑?shí)可行性,且準(zhǔn)確度較高。
[Abstract]:In order to solve the problem of geological hazards of water gushing through the broken zone of composite water-rich fault in the complex geological environment such as high in-situ stress and high hydraulic gradient, the deep-buried diversion tunnel is based on the Longjinxi diversion tunnel in Fujian Province. Based on one-dimensional differential equation of flow in plane, a method for calculating the water inflow of water-controlling model of water-rich fault combined with water-rich tunnel is proposed. The location relationship between tunnel and fault is considered from two angles of fault inclination and inclination. The geometric calculation parameters of three typical plane one-dimensional flow inrush modes in the model are determined. Based on the spatial position relationship between the tunnel and the fault, the calculated area is divided into three calculation subsections: area I (the tunnel is in the common surrounding rock), area II (the tunnel is in the fault influence zone) and area III (the tunnel is in the fault fracture zone). The total water inrush of the whole section is calculated by the piecewise integral of the three subzones. The effect of fault and high hydraulic gradient on the 鈪，

本文編號(hào)：2323927