high-pressure water tunnel 中文意思是什麼
high-pressure water tunnel
解釋
高壓水筒-
Tunnel construction is very difficult hi region with high geotectonic stress and high subsurface water pressure. few deep - lying tunnels are constructed in civil conveyance and hydropower engineering up to now
特別是對在高地應力、高地下水位區域的隧洞建設，其施工難度更大，在國內的水利水電工程建設中並不多見。 -
Finite volume method is appilied in numerical modeling of the flow in no - pressure tunnel of high water reservoir in this paper. i select standard k - turbulence modeling that put forward by launder and spalding in 1972 by weighted poly - turbulence modeling. the difficulty is that there is free surface in flow, but free surface problem ' s calculating region is indefinitely
本文利用有限體積法對高水頭下水庫無壓泄水洞水流進行了紊流數值模擬，根據多種紊流模型的優缺點進行比較，選擇了launder和spalding於1972年提出的標準的k ?紊流模型。 -
The lining of a tunnel in the area with high groundwater table does not bear high external water pressure in - normal, the surrounding rock reinforced by intrusion concrete does it. in the case, the groundwater through reinforced rock accumulated in the space between lining and rock must be drained in time
一般鐵路隧道通過高水位富水區時，不用襯砌直接承受較高的外水壓力，要實現這個設計目標必須做好襯背的排水工作，使通過加固圈滲透過來的水量及時排走，及時削減累積的水量。 -
The region belong to high geostress area. in the preceding excavation of 4km long exploratory tunnel, several bigger flows had taken place. the maximal flux approached 4. 91m3 / s and the maximal water pressure is 10. 22mpa
在前期4km長探洞施工過程中，曾發生多次較大涌水，單點最大涌水量達4 . 91m ~ 3 s ，長探洞封堵后最大水壓力達10 . 22mpa ，工程區高外水壓力問題突出。 -
For the sake of the research about hydroelectric interfere among machines, the article utilized the simulink in matlab as simulating tool, meanwhile established the simulating model about two high head diversion water turbines regulation system in violent fluctuating pressure sharing one head race tunnel and surge tank and one penstock. then calculated the load rejection transition process by means of the real parameters of a hydro power station, analysed the interfere of hydro power station safety and stable nenring brought by hydroelectric interfere and put forward a series of measures that lightening the hydroelectric interfere
為了研究機組間的水力干擾，本文採用matlab下的simulink作為模擬工具，建立共用有壓引水管道、調壓井、壓力主管的兩臺高水頭引水式水輪機調節系統大波動時的模擬模型，引入實際電站的參數，對甩負荷過渡過程進行了模擬計算，分析水力干擾對電站安全、穩定運行所造成的影響，並提出了一系列減輕水力干擾的措施。 -
In order to calculate the high external water pressure, the rock seepage field and external water pressure coefficient should be treated in detail. concentrated on the questions of high external water pressure and flow of the deep - lying tunnel, the basic theory and method calculating external water pressure are systematically studied, the high external water pressure of jinping cascade 2 hydropower station is analyzed and studied in detail
本文在總結前人研究成果的基礎上，圍繞深埋隧洞的突涌水和高外水壓力問題，系統地研究了深埋隧洞襯砌水荷載和外水壓力的作用機理及計算方法等理論，並對錦屏二級水電站深埋引水隧洞的外水壓力問題進行了詳細的分析和研究。 -
( 2 ) the method of finite element discrete and optimal parameter back analysis is adopted. ( 3 ) concentrated on the question of high external water pressure of the deep - lying tunnel, the basic theory and method calculating external water pressure are systematically studied. ( 4 ) based on jinping cascade 2 hydropower station, numerical simulation rain infiltration of seepage field under different drainage pattern and grouting pattern are studied, also, the high external water pressure is analyzed and studied and some seepage control measures are put forward
（ 2 ）採用有限元離散?優化法進行參數的反演分析； （ 3 ）針對深埋隧洞的高外水壓力問題，進一步分析和研究了襯砌水荷載及外水壓力的作用機理和計算方法； （ 4 ）以錦屏二級水電站深埋長引水隧洞作為本文的主要研究對象，採用考慮降雨入滲滲流場分析的方法對排水方案和灌漿封堵方案不同情況下的滲流場的水頭分佈進行了數值模擬，並對其外水壓力進行了分析和研究，提出了滲流控制的具體措施。 -
3d numerical simulation of the lining structure under high water pressure in mountain tunnel
山嶺隧道高水壓下襯砌結構三維數值模擬 -
Numerous deep lying tunnels are adopted with the water project construction transferring to the south - west area of china, the high external water pressure and flow are the most important problems faced in the tunnel design and construction
隨著我國水電建設逐步向西南轉移，深埋隧洞方案大量被採用，而深埋隧洞的高外水壓力和突涌水問題已成為目前隧洞設計和施工中亟待解決的難題。 -
Prediction of high pressure water in a tunnel and pre - grouting treatment
淺談隧道施工中高壓水的預報及預注漿處理
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