本文關(guān)鍵詞： 地下水 山嶺隧道 植被需求 涌水量 排水量 限排標(biāo)準(zhǔn)　出處：《江西理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：近些年,人們越來越重視隧道工程與隧址區(qū)周邊環(huán)境的和諧。在隧道工程的建設(shè)過程中,隧道工程與隧址區(qū)生態(tài)環(huán)境(地下水環(huán)境、植被生態(tài)環(huán)境、居民居住環(huán)境)的矛盾日益突出,因?yàn)樗淼赖拈_挖導(dǎo)致地下水的疏干,從而破壞隧址區(qū)生態(tài)環(huán)境,影響工程的案例不在少數(shù)。所以如何確定適宜的排水量與制定一個(gè)符合大部分山嶺隧道工程的地下水限排標(biāo)準(zhǔn),在隧道工程中是一個(gè)迫切的問題。本文以山嶺隧道為研究對象,使用文獻(xiàn)調(diào)研和現(xiàn)場調(diào)查等方法,分析地下水的主要類型及其與隧道的相互影響、隧道涌水量現(xiàn)有預(yù)測方法及其優(yōu)缺點(diǎn)和適用條件;同時(shí)以理論分析與計(jì)算為主要手段,采用地下水動(dòng)力學(xué)方法對隧道涌水量進(jìn)行預(yù)測;接著借鑒地下水動(dòng)力學(xué)的面井理論,從植被需求的角度出發(fā),確定山嶺隧道排水量;最后根據(jù)計(jì)算得到的涌水量、山嶺隧道排水量,選取山嶺隧道常見的計(jì)算參數(shù)范圍值,確定適用于大多數(shù)的山嶺隧道地下水限排標(biāo)準(zhǔn)。主要研究內(nèi)容如下:(1)通過歸納現(xiàn)有隧道涌水量的預(yù)測方法,并依據(jù)工程實(shí)際經(jīng)驗(yàn),論述各種涌水量預(yù)測方法的優(yōu)缺點(diǎn)和應(yīng)用范圍,提出本文采用的隧道涌水量預(yù)測方法。(2)從植被需求的角度,借鑒地下水動(dòng)力學(xué)中的面井理論,得出隧道地下水位降深與時(shí)間、排水量的關(guān)系,通過對地下水總排放量和與降雨入滲補(bǔ)給為主的地下水總補(bǔ)給量進(jìn)行平衡分析,提出保持地下水平衡的隧道排水量確定方法。(3)選取南方大部分地區(qū)常見的巖土體滲透系數(shù)、給水度及地下水頭高度等參數(shù)范圍值,基于生態(tài)平衡,確定了符合大多數(shù)山嶺隧道的地下水限排標(biāo)準(zhǔn);提出涌水量過大無法有效控制情況下隧道限排量的確定方法。
[Abstract]:In recent years, more and more attention has been paid to the harmony between tunnel engineering and the surrounding environment of tunnel site. In the process of tunnel construction, tunnel engineering and tunnel area ecological environment (groundwater environment, vegetation ecological environment), The contradiction between the residents' living environment) is becoming more and more serious, because the excavation of the tunnel leads to the drainage of groundwater, thus destroying the ecological environment of the tunnel site. There are many cases affecting the project. Therefore, how to determine the appropriate displacement and establish a standard of groundwater discharge in accordance with most mountain tunnel projects is an urgent problem in the tunnel engineering. This paper takes the mountain tunnel as the research object. In this paper, the main types of groundwater and its interaction with tunnels, the existing forecasting methods of tunnel discharge and their advantages, disadvantages and applicable conditions are analyzed by means of literature investigation and field investigation, and the theoretical analysis and calculation are taken as the main means. The groundwater dynamic method is used to predict the tunnel discharge, and the drainage capacity of the mountain tunnel is determined from the view of vegetation demand by using the surface well theory of groundwater dynamics for reference. In order to determine the standard of groundwater discharge for most mountain tunnels, the drainage capacity of mountain tunnels is determined by selecting the range values of common calculation parameters of mountain tunnels. The main research contents are as follows: 1) by summing up the existing prediction methods of tunnel discharge, Based on the practical engineering experience, this paper discusses the advantages and disadvantages and application scope of various water inflow forecasting methods, and puts forward the tunnel water discharge forecasting method .Y2) from the point of view of vegetation demand, drawing lessons from the surface well theory in groundwater dynamics. The relationship between the depth of the tunnel groundwater level and the time and displacement is obtained. Through the balance analysis of the total discharge of groundwater and the total recharge of groundwater with rainfall infiltration recharge, This paper puts forward the method of determining the drainage volume of tunnel to keep the groundwater balance. (3) selecting the parameters of permeability coefficient, water supply degree and groundwater head height of rock and soil, which are common in most areas of southern China, based on ecological balance. The limited discharge standard of groundwater in most mountain tunnels is determined, and the method of determining the limited discharge of tunnel under the condition that the inflow of water is too large can not be effectively controlled is put forward.
【學(xué)位授予單位】：江西理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U453.6

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