Thunderstorm downburst wind tunnel has the particularity and the intercommunity with a low-speed uniflow wind tunnel. A wind tunnel for thunderstorm downburst was well designed by taking into account the low-speed uniflow wind tunnel design criteria, andan adjustable plate was made to simulate the ground.

鑒于雷暴沖擊風(fēng)試驗(yàn)裝置的特殊性以及與低速直流風(fēng)洞的共通性，參考低速直流風(fēng)洞的設(shè)計(jì)方法設(shè)計(jì)完成了試驗(yàn)裝置的洞體結(jié)構(gòu)www.91sese婷，并制作了具有調(diào)節(jié)功能的平板來(lái)模擬地面。

With large-scale model tests of open-cut box tunnel and shallow bored horseshoetunnel intersecting orthogonally and obliquely with active ground fissure zone individually, the adaptability of sectionalized tunnel passing through active ground fissure is studied,theresults show that the sectionalized tunnel with flexible joint can bear very large sheardeformation,and the deformation and secondary stress of adjacent sectionalized tunnel underthe action of ground fissure is small,meantime many sectionalized tunnels can eliminatepartly the effect of active ground fissure movement,have a good capability of adapting itselfto the large deformation.

8通過(guò)分段設(shè)縫的明挖箱形隧道和淺埋暗挖馬蹄形隧道分別正交和斜交穿越地裂縫帶穿的大型模型試驗(yàn)，對(duì)分段設(shè)變形縫的地鐵隧道穿越地裂縫帶的適應(yīng)性進(jìn)行了研究www.午夜，結(jié)果表明分段式柔性接頭隧道能承受較大的剪切變形，相鄰襯砌管段變形和次生應(yīng)力均較小992tv人人草，同時(shí)多段設(shè)變形縫具有很好的消化地裂縫變形的效果免费一级a一片一久久，從而說(shuō)明多段設(shè)變形縫加柔性接頭連接的地鐵隧道具有較強(qiáng)的適應(yīng)地裂縫活動(dòng)大變形的能力。

In cold areas, the tunnel water seepage will trigger various freeze harms, and deteriorate the conditions for the tunnel to be a business. As a result, the treatment of waterproof and drainage of the tunnel have become one of the key issues in tunnel construction areas.

隧道滲漏水是隧道設(shè)計(jì)www.26uuu.com、施工和運(yùn)營(yíng)中要解決的突出問(wèn)題小蝌蚪国产，隧道防排水和滲漏治理已經(jīng)成為隧道工程建設(shè)的一大關(guān)鍵課題。

In the past 30 years or so, STEDI is the general and major design of Shanghai Metro Line 1 and Metro Line 2, and the participant of Shanghai Rail Transit Line 3 project for station design and design supervision, Guangzhou Metro project and Nanjing Metro project. Other tunnels designed by STEDI include Da Pu Lu Cross River Tunnel, Yan An Dong Lu Cross River Tunnel, many water supply/drainage tunnel s for power plants and other sorts of tunnel.

三十多年來(lái)国产自慰资源，承擔(dān)或完成了上海地區(qū)所有的越江隧道亚洲美女日逼A片、包括公路、人行欧美嘿咻嘿咻视频播放、進(jìn)排水隧道2020亚洲一级兔费A片、電纜等各類隧道的勘察設(shè)計(jì)、研究工作以及寧波色色五、南京等地的隧道工程免费无码高清黄色网址，還承擔(dān)或完成了上海地區(qū)近十條軌道交通線的總體設(shè)計(jì)以及主要設(shè)計(jì)工作，同時(shí)參加了深圳97青青操在线、南京国产一区在线免费观看、武漢等城市的軌道交通項(xiàng)目www.sanjipian.vom。

It can predict the long-distance geological conditions tunnel driving face: such as soft rock, the geological fault zone and tectonic belt. In general, it can accurately and effectively predict the range of 100 ~ 150m in front of the tunnel driving face, while in the hard rock can be as long as 200m. It can provide detailed geological information for the tunnel construction, and ensure the safety and quality of tunnel construction.

它能長(zhǎng)距離的預(yù)報(bào)隧道施工掌子面前方的地質(zhì)情況：如軟弱巖層、斷層構(gòu)造帶以及不良地質(zhì)地帶www三级片，在一般的巖層中可以準(zhǔn)確預(yù)報(bào)的有效范圍為100～150m日韩精品老熟女视频网站免费观看网址，在堅(jiān)硬巖層中可高達(dá)200m，能為隧道工程的施工提供詳細(xì)的地質(zhì)資料色色色校区，保障隧道施工的安全和質(zhì)量欧美另类人妻制服丝袜。

The book summary of the engineering properties of loess wall, a wall of loess detailed classification to meet the 350km / h high-speed railway tunnel and the structure of the reasonableness of the requested size of the tunnel section, and in the form of parameters, load characteristics of the loess tunnel wall, Anchor role in the stability of the characteristics of the tunnel and control the key technology design.

本書歸納總結(jié)了黃土圍巖工程特性，提出了黃土圍巖的細(xì)化分級(jí)久久这里都是精品，滿足350km/h高速鐵路和隧道結(jié)構(gòu)合理性要求的隧道斷面大小特级片一级片、形式和參數(shù)，黃土隧道圍巖荷載特征上别人丰满人妻毛片、錨桿作用特點(diǎn)和隧道穩(wěn)定性控制方法等關(guān)鍵設(shè)計(jì)技術(shù)日本欧美一级看。

Tunnel group construction control net is laid out on the basis of Xiaolangdi GPS firstorder control network. For convenient and fast setting out, firstly established a coordinates system of to take every tunnel axis as northward, transformed national geodetic coordinates which is original tunnel design adopted into every tunnel＇s construction coordinates.

洞群施工控制網(wǎng)是在小浪底GPS首級(jí)控制網(wǎng)的基礎(chǔ)上布設(shè)的，為便于施工和快速放樣一级黄色片网址，首先建立以每條遂洞軸線為北方向的坐標(biāo)系欧美性爱新地址，并將隧洞原設(shè)計(jì)采用的國(guó)家大地坐標(biāo)轉(zhuǎn)換為每條隧洞的施工坐標(biāo)。

The development target, development software, function, main characteristi-cs and work flow of diagnosis system for health condition of highway tunnel areintroduced, and the development process of highway tunnel disease database isdetailed introduced. Finally, through the application of the system to a case, thevalidity of diagnosis method for health condition of highway tunnel and thepracticability of diagnosis system for health condition of highway tunnel are verified.

6介紹了公路隧道健康狀態(tài)診斷系統(tǒng)的開(kāi)發(fā)目標(biāo)老板轻点好痛好涨嗯啊视频、開(kāi)發(fā)環(huán)境超碰在线入口、功能、主要特點(diǎn)和工作流程亚洲男人第一Av网站国产，詳細(xì)介紹了公路隧道病害數(shù)據(jù)庫(kù)的實(shí)現(xiàn)過(guò)程免费视频性综合，最后用實(shí)例介紹了系統(tǒng)的應(yīng)用，驗(yàn)證了公路隧道健康狀態(tài)診斷方法的有效性和公路隧道健康狀態(tài)診斷系統(tǒng)的實(shí)用性国产欧美精品久久。

The study objects of this text are highway and railway tunnel. This text analyze form and mechanism of cause of the tunnel"s disease through knowledge theory such as :rock mechanics, soil mechanics, hydraulics, hydrodynamics, chemistry ,and so on. And combine last criterion, rule and engineering practice, provide the tunnel disease"s the design of prevention and cure, method of construction, new technique, new material, new craftwork. This text provide some advantageous consult values for tunnel prevention and cure.

本文以公路及鐵路隧道為研究對(duì)象湖北一级黄片，運(yùn)用巖體力學(xué)、土力學(xué)C无码在线、水力學(xué)日韩AV电影三级片导航网站、流體力學(xué)、化學(xué)等學(xué)科理論免费破女视频在线看，以宏中国换妻视频、微觀相結(jié)合的方法分析了滲漏水、凍害天天色色影院、襯砌裂損及襯砌腐蝕4種常見(jiàn)隧道病害的表現(xiàn)形式国产一级黄在线观看播放、成因機(jī)理，結(jié)合最新的規(guī)范黄色视频在线观看18岁禁、規(guī)則和工程實(shí)際給出了隧道病害的防治設(shè)計(jì)插插插操操、施工方法以及新技術(shù)、新材料和新工藝，為隧道防治提供了有利的參考價(jià)值超碰在线视屏。

The fore bay of Heihe Longhui Hydropower Station designed by the company, is the existing biggest tunnel fore bay in China, which is height of 21m, width of 16m; for the large-span dome of surge tank of Baishuijiang Shiji Hydropower Station, which is the first project equipped with rapid-drop gate in surge tank in Gansu Province, the company adopted pre-stressed anchor cable to complete the dome's excavation and supporting at the same time, thus reduced the completion period and investment; for the diversion tunnel of Fuchuan Hydropower Station, which is the biggest non-pressure diversion tunnel in Gansu Province, with span of 9m, height of 11m, the company adopted half-tunnel supporting structure, thus reduced the project investment.

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