Conditions of the seepage and stress is a dynamic process, and also shows its interaction and interdependence. Owing to the closure of the fracture, the hydraulic gradient and the permeability pressure of the fracture turn large, and also promote the expansion of water cracks, and fissures connectivity increasing. The increase of the crack opening width will result in the increase of the infiltration capacity and seepage flow, and the reduction of seepage pressure. Because of the dynamic dependence of the fracture aperture, pressure and seepage, under certain conditions, changes in fracture aperture can lead to the formation of local water-passage, and the local emission of high pressure water, and thus promotes the formation of the sudden outgush disasters.

結(jié)果表明：洞室開挖完成后，在圍巖滲流與應(yīng)力耦合作用下91午夜福利国产在线播放，圍巖中裂隙隙寬天堂av中文在线、裂隙中水壓及其滲透流量的變化是一個(gè)動(dòng)態(tài)過程，且相互作用與相互依賴色哟哟免费看；裂隙的閉合使得結(jié)構(gòu)面水力梯度變大粉嫩国产剧情在线观看网站大全，作用在裂縫上的滲透壓力增大美女肏的网站，促進(jìn)導(dǎo)水裂縫擴(kuò)展，裂隙連通性增加一级一a片；裂縫張開度增大欧美色视频一区二区，滲透能力增強(qiáng)，滲流量增大黄色美女裸体网站，其滲流壓力相應(yīng)降低欧欧美一级清；由于圍巖中裂隙隙寬、壓力和滲流量的動(dòng)態(tài)依賴性尹人香蕉免费一级毛片，在一定條件下免费人成网站视频观看点击进入，裂隙隙寬的改變可導(dǎo)致局部水力通道的形成，高壓水頭從局部涌出国产综合久久久久，從而促進(jìn)突水災(zāi)害的形成涩涩在线播放视频视频。

Language. The result show that outburst coal structure can be divided according to features of geology, logging and physical mechanics; according to basic features and mechanism of gas outburst, with geology factors, mathematical geology model predicting gas content, emission and outburst can be established by quantification theory; the result of prediction for gas danger in Huainan Pansan mine by predicting model is relatively reliable, and the weaved map of gas geology can meet the need of production; the design of gas danger prediction software make prediction more convenient and fleeter.

結(jié)果表明，根據(jù)突出煤體的地質(zhì)午夜a片视频播放器、測井和物理力學(xué)特征可以劃分突出煤體結(jié)構(gòu)91无码视；根據(jù)瓦斯突出的基本特征和機(jī)理，采用地質(zhì)因素av资源观看，利用數(shù)量化理論可以建立瓦斯含量、涌出量及突出預(yù)測的數(shù)學(xué)地質(zhì)模型国产一级A特黄AAA片；利用預(yù)測模型對(duì)淮南潘三礦瓦斯危險(xiǎn)性的預(yù)測結(jié)果較為可靠久久综合色88888，編制的瓦斯地質(zhì)圖可以滿足生產(chǎn)的要求；瓦斯危險(xiǎn)性預(yù)測軟件的開發(fā)使預(yù)測更為便捷和快速一级做a爰黑人又硬又粗视频。

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家家戶戶擠在窗口看熱鬧的人往下一望wwwbbbbcom，只見擠滿人群的司法宮廣場，猶如洶涌的大海在线一级免费在线观看，通往廣場的五久久精品国产精品青草色艺、六條街道各似河口一级e片网站，每時(shí)每刻都涌出一股股澎湃的人流來。

The palace place, encumbered with people, offered to the curious gazers . at the windows the aspect of a sea; into which five or six streets, like so many mouths of rivers, discharged every moment fresh floods of heads .

家家戶戶擠在窗口看熱鬧的人往下一望麻豆九一PORNY，只見擠滿人群的司法宮廣場强奸电影网站，猶如洶涌的大海，通往廣場的五www.youjizz.com在线视频、六條街道各似河口国产主播秋霞，每時(shí)每刻都涌出一股股澎湃的人流。

The gas hydrates are preserved in the pores and cracks of the siltstone layers sandwiched in the oil shale member of the Middle Jurassic Jiangcang Formation. The gas in the gas hydrates is dominated by heavy hydrocarbons, with the methane accounting up to 52%~68%.

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The deserted mining village, protruding pitheads overgrown with tall trees and rustling refineries behind crumbling walls situated in valleys, were surrounded by thick wooded mountain slopes, hot spring gushing out here and there.

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Since the first Mercedes-Benz manufacturing a world-recognized car after more than 100 years have passed and the car has already spent his 100th birthday, in which more than 100 years, with the canopy Bo development of the automobile industry, there has been Chung many car manufacturers, but also celebrated the moment, but ultimately is short-lived.

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