It is shown from the parallel experimental results that the water tight fly ash concrete can substitute for the rubber water tight board, and the water tight fly ash concrete has more impermeability than the rubber board under the circumstances that permeability pressure of the tunnel is not very high.

在寒冷地區(qū)日本巨大爆乳一级在线观看，隧道漏水還會使隧道路面凍結(jié)，頂部產(chǎn)生冰柱露脸精品一区二区三区，影響隧道交通。對維護費用較高的隧道79av视频在线观看，諸如穿越含污染水層的供水隧道、可能由流沙在襯砌形成空隙的隧道一本大道香蕉久在线、裝有電氣設(shè)備的隧道92人妻、以及要求美觀的隧道如人行通道和地鐵車站，都應(yīng)采取防水措施色日韩一区二区。

In this paper we combining connecting tunnel project of Subway Line 4 at Xidan-lingjing bystreet in Beijing. To aim at the difficulties of building large-span connecting tunnels in the fine sand layer, through roads and underground pipelines, construction nearby buildings and other project difficulties. Using theoretical analysis, numerical simulation, field tests and other research methods to comprehensive and systemic research the stratum deformation mechanism and process control techniques of shallow excavation method, and a series of results were obtained. Firstly, use the stochastic media theory to analyze the stratum deformation mechanism, concretely analyze the analytic equation of surface horizontal displacement and deformation which were caused by the excavation of single-hole and double-hole tunnel, and further discussion on ground settlement, vertical deformation, surface horizontal displacement and horizontal deformation. Analyzing the main influence factors of surface displacement, and combined with practical work to proof the theory which was applied to shallow buried single-hole tunnel in fine sand layer was scientific.

本文結(jié)合北京地鐵四號線西單～靈境胡同渡線隧道工程国产不卡免费一级视频，針對在粉細砂地層中修建大跨渡線隧道2020免费黄色视频，下穿道路和地下管線日韩精品激情视频网站免费观看在线，臨近建筑物施工等工程難點，利用理論分析日本国产欧美性爱、數(shù)值模擬、和現(xiàn)場監(jiān)測等多種研究手段久久99久久1，對淺埋暗挖隧道地層變位機理及控制技術(shù)，深入地進行全面和系統(tǒng)的研究日韩,欧美一不卡，并取得以下成果：(1)引入隨機介質(zhì)理論，對地層變位機理進行了分析一级做a欧美，具體分析了單、雙孔隧道開挖引起的地表位移及變形的解析方程www.xxxx欧美，并深入探討了地表沉降、垂直變形国产人成视频WWW、地表水平位移和水平變形的特點，同時分析了影響地表位移的主要因素欧美日韩一区二区综合另类，并結(jié)合工程實例，佐證該理論應(yīng)用于粉細砂地層淺埋暗挖單孔地鐵隧道的科學(xué)性欧美特级黄片在线播放。

The selection of geological prospecting in different stages(initial-prospecting, detailed-prospecting)(2)the selection of geological prospecting in the deep-laid and shallow-laid of tunnel project (3)the selection of geological prospecting of tunnel projecting in different geological conditions Finally, the author summed up main problems needing to be solved in tunnel engineering geological prospecting as follow:(1)differentiate stratum and find out the depth and thickness of different stratums in the tunnel section (2)find out geological structure and existence situation of fault, broken zone and weak plane (3)find out weathering level of bed rock to classify surrounding rock combining speed materials (4)differentiate stratum structure of the entrance of tunnel to judge the stability of it (5)find out existence situation and performance of ground water (6)situations of other harmful geological phenomenon In view of above problems and classification of surrounding rock, the author showed principles of rational choosing of methods in geological prospecting and counted disperse range of physical character parameter value in different petrosal character, getting achievements as follow:(1)summarization of effect, merits and demerits of different geological prospecting methods in the tunnel geological investigation (2)method selection and arrangement principle of tunnel engineering geological prospecting in different geological conditions and prospecting stages (3)According to previous experience and cases, the author concluded the物性parameters most in use ,and showed the basis of selecting geological prospecting methods in different geological conditions.

論文中用幾個應(yīng)用實例來說明：(1)不同勘察階段物探工作的選用免费Ⅴa在线观看；(2)深埋97在线超级对对碰免费、淺埋隧道工程物探工作的選用；(3)不同地質(zhì)條件隧道工程物探工作的選用新天堂成人av福利网站在线。最后總結(jié)歸納出隧道工程物探所需要解決的問題主要有：(1)劃分地層，查明隧道通過剖面的各地層深度與厚度。(2)查明地質(zhì)構(gòu)造亚洲欧美自拍第一页，隧道軸線段有無斷層、破碎帶中文字幕乱码电影免费一二三区、軟弱層面等。(3)查明基巖風(fēng)化程度黄色网站直接进大全，從而結(jié)合速度資料進行圍巖分級。(4)劃分洞口地層結(jié)構(gòu)国产多人操逼视频，判斷洞口穩(wěn)定性。(5)查明地下水賦存情況及其活動動態(tài)欧美淫秽视频。(6)其他不良地質(zhì)現(xiàn)象存在情況。針對上述需要查明的地質(zhì)問題與計算圍巖分級情況亚洲精品白色在线发布，論文提出合理選用物探方法的原則男人女人插动态，并統(tǒng)計了物性參數(shù)值在不同巖性中的分布范圍。得出以下研究成果：(1)總結(jié)出各物探方法在隧道地質(zhì)調(diào)查中的作用和優(yōu)缺點色色视频黄。(2)得出不同地質(zhì)條件下和不同勘察階段黄页免费视频播放在线播放，隧道工程物探方法選擇和布置的原則片色色。(3)根據(jù)以往工作經(jīng)驗和事例色01永久视频，對常用的物性參數(shù)進行了歸納總結(jié)，同時介紹了不同地質(zhì)條件下物探方法選擇的依據(jù)黄色视频制服网站。

The surface displacement and deformation caused by the construction of double parallel tunnels is more complex than the single tunnel s.

城市中隧道常以雙孔平行隧道的形式出現(xiàn)，而雙孔平行隧道施工地表位移及變形比單孔的復(fù)雜欧美A片一区二区三区，通常第二條隧道要滯后修建，所以當(dāng)?shù)诙l隧道施工時igao网变成什么网站了，會對第一條隧道施工地表位移及變形產(chǎn)生影響，同時第二條隧道施工地表位移及變形也會受到第一條隧道的影響永久黄网色视频免费观看。

Based on the item of national high technology development project, the thesis studies the reasonable construction pattern of the tunnel portal, incidence of the micro-pressure wave and the the effect of bell-mouthed hood, lacunaris hood and expansile hood on alleviating the micro-pressure wave in the situations of single line and double line, obtains the relationship between the max micro-pressure wave and the velocity of the train as well as the relationship between the max micro-pressure wave and distance of measuring point at the velocity of 100km/h-550km/h, compares the different alleviative effect of the three different hood to max micro-pressure wave and finally proposes the reasonable construction pattern of the tunnel portal.

本文針對國家高技術(shù)研究發(fā)展計劃(863計劃)課題"磁浮交通滬杭線越黃浦江隧道的工程技術(shù)問題研究"日韩高清性爱网站，在單洞單線和單洞雙線兩種工況下亚洲中文字幕欧美国产，對隧道洞口的合理結(jié)構(gòu)形式和影響范圍妓女视频在线观看网站，以及洞口喇叭形入口緩沖段、多孔壁入口緩沖段以及隧道出口膨脹室對減緩微壓波的作用進行了研究喷水毛片一级，得到了磁浮列車速度在100km/h～550km/h時隧道出口微壓波最大值與速度的關(guān)系以及微壓波最大值與測點距離的關(guān)系，比較了三種不同形式緩沖結(jié)構(gòu)對微壓波最大值的減緩效果色色综合色综合，提出了隧道洞口的合理結(jié)構(gòu)形式。

Results show that gas release in gassy sand will cause the additive deformation of tunnel and additive stress of the shield segment, and make important impacts on the global displacement of tunnel but little influences on the stress of shield segments and the relative displacement of tunnel. It is inclined to arouse the differential settlement and cracks on the tunnel so as to cause hazardousness. Re-accumulating of the gas can also produce additional stress and the additive resilience, but it can be ignored in practical engineering because the influence degree is small. The shallow gas in reservoirs is appropriate to be discharged before construction of the subway tunnel.

研究結(jié)果表明：氣體釋放將引起隧道產(chǎn)生附加變形和管片附加應(yīng)力欧美城色色，淺層氣體釋放對地鐵隧道結(jié)構(gòu)應(yīng)力和結(jié)構(gòu)相對變形影響較小，而對隧道整體位移影響較大麻豆AV在线高清免费播放，易引起不均勻沉降，導(dǎo)致隧道裂縫或斷裂欧美一区、二区，進而引發(fā)危險；氣體重新回聚時国产精品婷婷久久久久久，隧道產(chǎn)生的附加應(yīng)力和回彈位移量較小，工程中可不予考慮日韩精品美女网页在线观看免费；地鐵隧道施工前，宜對淺層氣體進行預(yù)先排放91久久五月。

The results show that for the single-track shield tunnel in actual projects,the longitudinal ventilation velocity of 2.6~2.9 m/s can effectively prevent smoke from counter flow at a heat release rate of 10 MW;when the tunnel sector on fire with a longitudinal velocity of 2.9 m/s and the unfired tunnel sector with the velocity of 1~1.5 m/s from both ends,there is an air flow with the velocity of 6 m/s ...

模擬分析得出，對于地鐵實際工程中的單線盾構(gòu)圓形隧道欧美精品一区yz，在10 MW火災(zāi)強度下，著火區(qū)間隧道內(nèi)2.6~2.9 m/s左右的縱向風(fēng)速可以有效阻止煙氣發(fā)生逆流天天干,天天摸A√；在著火區(qū)間隧道2.9 m/s的縱向風(fēng)速下，未著火區(qū)間隧道兩端對送送風(fēng)速度為1~1.5 m/s時国产污色视频在线观看，聯(lián)絡(luò)通道內(nèi)有風(fēng)速為6 m/s左右的氣流流向著火區(qū)間隧道日本黄页网站大全，可有效抑制煙氣通過聯(lián)絡(luò)通道向未著火區(qū)間隧道蔓延，保證人員的安全疏散碰人人么。

A tunneling machine for producing large tunnels in soft rock or wet, clayey, unconsolidated or bouldery earth by simultaneously detaching the tunnel core by thermal melting a boundary kerf into the tunnel face and forming a supporting excavation wall liner by deflecting the molten materials against the excavation walls to provide, when solidified, a continuous wall supporting liner, and detaching the tunnel face circumscribed by the kerf with powered mechanical earth detachment means and in which the heat required for melting the kerf and liner material is provided by a compact nuclear reactor.

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Nanjing subway south-north line TA 12 section interved tunned between drumbuilding and Xuan Wu door,formed from Guround two tunnels.This interval tunnelsection is complex and changeful , forms to exceed little span tunnel , also has spantunnel , this interval tunnel pass through under the building cround new two sides onthe road mainly , line passes through major is Ⅰor Ⅱ kind surround rock.

南京地鐵南北線TA12標(biāo)鼓樓站至玄武門站區(qū)間隧道伊人影院在线操在线干影院，由左右兩條隧道組成，此區(qū)間隧道斷面復(fù)雜多變18禁啪啪啪网站，既形成了超小間距隧道caopo超碰地址发布页用户登录，也有大跨度隧道，該區(qū)間隧道主要從路兩側(cè)既有建筑群下穿過成人免费黄网站，線路穿越的地層主要是Ⅰ、Ⅱ類圍巖自拍偷拍唯。

The entrance section of FuXi Double-arched Tunnel is modeled in the fact of factual shallow buried and unsymmetrical pressure condition. Adopting the three heading construction method to simulate twelve kinds of construction projects, confirm reasonable construction orders and left and right tunnel face interval, systematically analyze and research the changing law of the tunnel deformation and surrounding rock stress in soft and cracked condition of surrounding rock,bring forward pertinent advices against construction disease; Build the deep buried tunnel model in middle section of tunnel , separately adopt the central heading bench cut benching method and the central heading full cross method to simulate ten kinds of construction projects, establish the reasonable construction orders, sidestep length and tunnel face interval, which are due to the deep buried tunnel, systematically analyze and research the change law of the tunnel deformation and surrounding rock stress in the section with good surrounding rock condition, bring forward the reasonable construction projects which can make sure of construction safety and save construction time; Because the central wall is disturbed many times during constructing process, its displacement and stress distribution is very complex.

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Carpal tunnel syndrome：腕隧道癥候群

腕隧道癥候群(carpal tunnel syndrome)即正中神經(jīng)穿過手腕隧道時,神經(jīng)受到壓迫所造成的癥狀. 而所謂手腕隧道是位於手腕部的通道,它是由腕骨及橫腕韌帶所構(gòu)成的一條隧道,而正中神經(jīng)從此通過然后支配到手指及大拇指內(nèi)側(cè)的肌肉.

354.0 Carpal tunnel syndrome：腕部隧道癥候群;腕隧道徵候群 354

353.5 Neuralgic amyotrophy 神經(jīng)痛性肌萎縮癥 353.5 | 354.0 Carpal tunnel syndrome 腕部隧道癥候群;腕隧道徵候群 354.0 | 354.1 Lesion of median nerve 正中神經(jīng)病灶 354.1

tunnel cryotron：隧道式冷子管

tunnel breakdown 隧道嘩 | tunnel cryotron 隧道式冷子管 | tunnel current 隧道電流

subaqueous tunnel：水下隧道

1646 山嶺隧道 mountain tunnel | 1647 水下隧道 subaqueous tunnel | 1648 海底隧道 ;水下隧道 submarine tunnel;underwater tunnel

tunneler：隧道掘進機,隧道器

tunnel 隧道 | tunneler 隧道掘進機,隧道器 | turbidimeter 濁度計,比濁計

subway tunne; underground railway tunnel：地鐵隧道

水下隧道;水地隧道 subaqueous tunnel; underwater tunnel | 地鐵隧道 subway tunne; underground railway tunnel | 淺埋隧道 shallow tunnel; shallow-depth tunnel; shallow burying tunnel

tunnel luminaries：隧道照明設(shè)備

牐爐unnel link隧道及連接道路 | 牐爐unnel luminaries隧道照明設(shè)備 | 牐燭unnel Manager, Cross-Harbour Tunnel Company Limited香港隧道有限公司隧道經(jīng)理

tunnelling works：隧道工程;開挖隧道工程

tunnel ventilation fan 隧道通風(fēng)風(fēng)扇 | tunnelling works 隧道工程;開挖隧道工程 | turbidity 混濁度

tunnelling works：隧道工程;隧道開挖工程

tunnel ventilation fan 隧道通風(fēng)風(fēng)扇 | tunnelling works 隧道工程;隧道開挖工程 | turbine generator 渦輪發(fā)電機

tunnel shaft：隧道井,隧道豎井,中間軸

tunnel set ==> 隧道棚子 | tunnel shaft ==> 隧道井,隧道豎井,中間軸 | tunnel shield ==> 隧盾