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奇米第四色888，針對在粉細砂地層中修建大跨渡線隧道色中色综合网，下穿道路和地下管線天天综合网婷婷网，臨近建筑物施工等工程難點亚洲一区欧美日韩字幕，利用理論分析、數(shù)值模擬国产口爆视频、和現(xiàn)場監(jiān)測等多種研究手段，對淺埋暗挖隧道地層變位機理及控制技術(shù)超碰人人操干，深入地進行全面和系統(tǒng)的研究免费网站看av片在线观看，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A片免费视频在线观看大全，具體分析了單欧美xxxx极品第一视角、雙孔隧道開挖引起的地表位移及變形的解析方程，并深入探討了地表沉降欧美久久迷奸网站视频最新、垂直變形日韩亚洲欧美激情视频、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精品三级无码一区，并結(jié)合工程實例黃色視頻久久免費，佐證該理論應用于粉細砂地層淺埋暗挖單孔地鐵隧道的科學性。

At the same time, the existing securities investments double taxation, as well as at present differentiated taxation range feasibility study of neumatic, winehouses analyses securities tax problems, has proposed reform direction, so as to actually implement the tax system of the principle of fairness.

同時十八岁禁网站黄，對現(xiàn)行證券投資所得重復征稅欧美三级一级一级野战，以及目前差異化的征稅范圍等方面進行了可行性研討，深刻地剖析了我國目前證券稅制存在的問題欧美交a欧美精品喷水，提出了改革方向欧美大片天天爽，從而真正實現(xiàn)稅收制度的公平原則。

The source,existing form and equilibrium of carbonic acid in natural water are presented in this article,which points out that alkalinity is determined by double indicator that indicates purply at the first terminal point,while at the second terminal point should use methyl red-bromocresol green mixed indicator.

介紹了天然水體中碳酸的來源日韩最大的男女视频网站、存在形式及平衡關(guān)系免费看美女被操网站；指出用&雙指示劑&法測定水中堿度的第一終點應顯粉紫色国产乱交视频操小阴道，第二終點宜采用甲基紅-溴甲酚綠混合指示劑；測定游離二氧化碳要用雙樣測定并嚴格控制滴定終點国内精品一级毛片国产；各種碳酸的含量可與pH值一本在线香蕉高清在线、硬度的測定結(jié)果進行校核。

Experimental study on effect of acetic acid and carbonic acid on clay's geotechnical behaviors;2. The source,existing form and equilibrium of carbonic acid in natural water are presented in this article,which points out that alkalinity is determined by double indicator that indicates purply at the first terminal point,while at the second terminal point should use methyl red-bromocresol green mixed indicator.

介紹了天然水體中碳酸的來源激情视频激情文学在线、存在形式及平衡關(guān)系欧美强奸网站；指出用&雙指示劑&法測定水中堿度的第一終點應顯粉紫色，第二終點宜采用甲基紅-溴甲酚綠混合指示劑国内精品免费视频在线拍；測定游離二氧化碳要用雙樣測定并嚴格控制滴定終點A级黄色毛片免费看；各種碳酸的含量可與pH值、硬度的測定結(jié)果進行校核国内揄拍国内精品视频。

Now, at the grand age of 24, she looks washed up, as though she would be more at home pushing a double buggy11 in the courtyard than supping skinny lattes in Beverly Hills.

但如今免费A级毛片无码免費视频，在24歲的黃金年齡，她卻看起來花容凋零日韩一级特黄毛片在线看，仿佛她更多地是在院子里推著一輛雙人嬰兒車而不是在貝弗莉山啜飲低脂拿鐵亚洲av一级二级三级免费观看。

Now, at the grand age of 24, she looks washed up, as though she would be more at home pushing a double buggy11 in the courtyard than supping skinny lattes in Beverly Hills.

我預測杰西卡？

Therefore, I tend to think that next week's A-share market will stabilize in 1800 at the top of the formation of short-term at the end of the double pattern.

因此无遮挡奶头污免费网站，我傾向于認為欧美精品黑人性XXXXWWW，在短期頂部的形成下周的A股市場在1800年將穩(wěn)定在雙重格局終結(jié)。

Atfirst,stress and displacement at the end of collinear crucks are calculated by elasticity me-chanical method,then general solution of twist force at the end of collinear cracks is givenby rotation theory,single crack and double cracks are discussed emphatically.

本文計算并討論了忽視旋轉(zhuǎn)的傳統(tǒng)理論所不能給出的裂紋端部場與場源的相互作用人操在线视频97，首先利用彈性力學方法計算了共線裂紋組端部的應力場及位移場性爱一级，然后應用旋轉(zhuǎn)理論給出共線裂紋組端部的扭轉(zhuǎn)力通解，對單裂紋和雙裂紋情形做了重點討論一级免费看。

The suspension relied on double wishbones and torsion bars at the front and a de Dion beam at the rear.

在雙叉骨和扭桿依賴在前線的懸掛和德翁束在后面中文字幕黃色av。

I'm in Japan at the moment, in Tokyo ahead of the second of the far eastern double header at Suzuka, and I love the city it has a really cool feel to it.

發(fā)表于：星期一十月 16， 2006 8：59 pm 發(fā)表主題：此時在线观看资源av，我身在日本東京久久99视频首页，正準備參加鈴鹿站比賽，這是連續(xù)兩站東方比賽的第二站内地黄色视频久久免费。