This article analyses the application conditions of freezing method, current research status and the problems in this field. It points that it's necessary to study deep freezing temperature field deeply and discusses the factors which influence the freezing wall such as soil's nature, moisture content, geological conditions, etc. It introduces the theory, process of freezing method, the distribution of temperature field of freezing method and key thermotics parameters influencing freezing temperature field. It simplifies the deep freezing temperature field model. Through ANSYS, this article founds the deep freezing temperature field model, and simulates the field on vary heat conductivities. It analyzes the results of ANSYS simulation, gains the theoretical value of thermometric holes which is needed by back-analysis. Using the simulation temperature and actual value, it gets the equivalent heat conductivity. Then it solves the deep freezing temperature field by the equivalent value, simulates the freezing wall development process and temperature change curve. Against the actual project, the results are favorable.

文中分析了凍結(jié)法施工的應(yīng)用條件，目前對凍結(jié)法施工的研究現(xiàn)狀和在此領(lǐng)域內(nèi)存在的問題日韩性色加勒比在线观看，指出了對深土凍結(jié)溫度場進(jìn)行深入研究分析的必要性日韩午夜一级毛片；對影響凍結(jié)壁形成發(fā)展的因素如凍土土性、含水量男女猛烈无遮挡免费视频在线观看、地質(zhì)條件及施工方法等因素進(jìn)行了論述干少妇33P图；對凍結(jié)法施工的原理、過程国产高清久久久久久久，凍結(jié)法溫度場的分布情況美女视频网址，影響凍結(jié)溫度場分布的主要熱學(xué)參數(shù)進(jìn)行了綜述；對深土凍土溫度場模型進(jìn)行了合理的簡化丁香花色色网，通過ANSYS大型有限元分析軟件色一鲁中文字幕，建立了深土凍結(jié)溫度場的模型，對不同導(dǎo)熱系數(shù)情況下的深土凍結(jié)溫度場進(jìn)行了模擬真人av在线免费看；對ANSYS的模擬結(jié)果進(jìn)行了定性的分析中国无毛黄色视频，通過對ANSYS結(jié)果的后處理取得了反分析時(shí)需要用到的測溫孔理論溫度值；經(jīng)過對測溫孔模擬溫度值和實(shí)測溫度值的分析亚洲一级片免费，得到了凍結(jié)溫度場的等效導(dǎo)熱系數(shù)华人免费视频；使用等效導(dǎo)熱系數(shù)對深土凍結(jié)溫度場進(jìn)行了求解，模擬了凍結(jié)壁發(fā)展情況和溫度場中的溫度變化曲線欧美操逼的视频，用所得結(jié)果對比工程實(shí)際情況免费一级黄色A片，取得了較好的效果。

This article analyses the application conditions of freezing method, current research status and the problems in thisiold. It, points that it" s necessary to study deep freezing temperature field deeply and discusses the factors which influence the freezing wall such as soil" s nature, moisture content, geological conditions, etc. It introduces the theory, process of freezing method, the distribution of temperature field of freezing method and key thermotics parameters influencing freezing temperature field, it simplifies the deep freezing temperature field model. Through ANSYS, this article founds the deep freezing temperature field model, and simulates the field on vary heat conductivities. It analyzes the results of ANSYS simulation, gains the theoretical value of thermometric holes which is needed by back analysis. Using the simulation temperature and actual value, it gets the equivalent heat conductivity. Then it solves the deep freezing temperature field by the equivalent value, simulates the freezing wall development process and temperature change curve. Against the actual project, the results are favorable.

文中分析了凍結(jié)法施工的應(yīng)用條件免费的日韩精品视频在线观看，目前對凍結(jié)法施工的研究現(xiàn)狀和在此領(lǐng)域內(nèi)存在的問題性爱舔欧美网站，指出了對深土凍結(jié)溫度場進(jìn)行深入研究分析的必要性；對影響凍結(jié)壁形成發(fā)展的因素如凍土土性日韩午夜第一页在线播放观看、含水量黄免费观线看、地質(zhì)條件及施工方法等因素進(jìn)行了論述；對凍結(jié)法施工的原理、過程精品中文字幕一区二区三区四区，凍結(jié)法溫度場的分布情況狼友在线精品视频在线观看，影響凍結(jié)溫度場分布的主要熱學(xué)參數(shù)進(jìn)行了綜述；對深土凍土溫度場模型進(jìn)行了合理的簡化亚洲热在线观看，通過ANSYS大型有限元分析軟件人人操人人干干人人操人人，建立了深土凍結(jié)溫度場的模型，對不同導(dǎo)熱系數(shù)情況下的深土凍結(jié)溫度場進(jìn)行了模擬激情文学欧美图片乱伦；對ANSYS的模擬結(jié)果進(jìn)行了定性的分析欧美一次性爱，通過對ANSYS結(jié)果的后處理取得了反分析時(shí)需要用到的測溫孔理論溫度值；經(jīng)過對測溫孔模擬溫度值和實(shí)測溫度值的分析午夜欧美福利视频，得到了凍結(jié)溫度場的等效導(dǎo)熱系數(shù)男女爽插视频；使用等效導(dǎo)熱系數(shù)對深土凍結(jié)溫度場進(jìn)行了求解，模擬了凍結(jié)壁發(fā)展情況和溫度場中的溫度變化曲線99在线视频播放，用所得結(jié)果對比工程實(shí)際情況亚洲白白发布，取得了較好的效果。

Use this integral method advance precision and efficiency of calculation process.Compiles the program in Visual C++ language. The impacts of timbering parameter on soil nailing stability and optimization soil-nailed length are analyzed. This paper could be used in the projects.

編制了相應(yīng)的土釘長度優(yōu)化程序日本免费一级黄色片，分析了土釘各設(shè)計(jì)參數(shù)對土釘支護(hù)穩(wěn)定性的影響和對程序得出的土釘長度的影響色色色色欧美色，為指導(dǎo)土釘支護(hù)在實(shí)際工程中的設(shè)計(jì)應(yīng)用提供了依據(jù)。

The result indicated that suitable thickness of paddy soil is about 15cm,and for dry arable land it should not be lower than 20cm;The alluvial rivers parent material is the best one to influent the output,the rice fields is the worst with the parent material of slate ground,while the dry and plough land is the worst for its purple sand shale parent material;The paddy rice is best with the acid soil,and the dry crop is the best with the neutral soil;The obstacles horizon exist in 35.2%of the rice fields in research region,and many for middle or top digit obstacles.

結(jié)果表明AAAAAAA级特黄性爱视频，水稻土的適宜耕層厚度為15 cm左右，旱耕地適宜耕層厚度應(yīng)不低于20cm欧美多人囗交A片；成土母質(zhì)對產(chǎn)量的影響以河湖沉積物母質(zhì)最好欧美综合亚洲，稻田以板頁巖母質(zhì)最差，旱耕地以紫色砂頁巖母質(zhì)最差欧美在线一级片；水稻以酸性土最好可以直接观看的黄片，旱作以中性土最好；研究區(qū)稻田有35.2%的存在障礙層天堂国产av片，且多為中8x永久在线视频、高位障礙，是影響水稻產(chǎn)量整體提高的主要因素自拍日韩动漫欧美激情视频网站大全；水稻和旱作都以壤土為最好欧美熟妇性生活，其中，稻作怕砂黄色www，旱作怕粘日韩一区二区黄色视频；水稻土適宜的容重為1.00—1.29 g/cm~3。

Aunder the condition of trenched field surface,the wetting front plotted in the laboratory ex-periments showed a good agreement with that by computer simulation,for example,after 600min,the largest error of the wetting front by two methods was less than 8cm.

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This study will assess elementarily the security and effectiveness of The root and leaf of Panicled Fameflower through the experimental studies on their pharmacodynamics and acute toxicology, provid possibly theorems and experimental foundations for Panicled Fameflower' s edibleness, planting and study.

本課題通過土人參根国产黄色在线观看q、葉的藥效和急性毒性實(shí)驗(yàn)研究88黄色视频在线观看，對土人參根、葉治療&脾虛&證欧美亚洲视频一区、土人參葉&解毒消癰&的療效和部分作用機(jī)制做出初步評價(jià)亚洲欧美激情综合一区二区、并取得土人參根、葉急性毒性數(shù)據(jù)黄色视频唯爱网，為保健中藥蔬菜土人參的食用提供客觀的藥效學(xué)和急性毒性的實(shí)驗(yàn)依據(jù)91在线网站观看，以促其進(jìn)一步推廣應(yīng)用、種植人人摸人人摸摸人人操人人操、研究18岁禁止访问网址。

In this paper, the marine soft soil is mixed with 10% cement added with 0.5% NaOH and 0.5% Na2CO3 separately, which form two types of new cement-soils. Comparing with the undisturbed soil and the 20% cement-soil results in that the alkalescence additive can contribute to generate a large number of needle-like, rod-like or fibriform hydrate calcium silicate crystals. The hydrate calcium silicate crystals can inhibit the generation of calcic alum crystal which would bring expansive action. At the mean time, it can separate out hydrate calcium. The hydrate calcium silicate crystals and hydrate calcium constitute the filling and inclusions together among soil particles and on the surface of soil particles, which cut down the interstices of cement soil obviously. Therefore, the soil mass can be reinforced and the intensity can be improved.

現(xiàn)場試驗(yàn)中將海積軟土與分別摻入0.5%NaOH和0.5%Na2CO3的10%水泥就地?cái)嚢瑁纬蓛煞N新型水泥土亚洲Av库在线观看国产，在與原狀土及20%純水泥土進(jìn)行比較后日韩精品视频无播放器在线观看免费，發(fā)現(xiàn)堿性外摻劑可以促使生成大量針狀、棒狀或纖維狀水化硅酸鈣晶體国产欧美日韩另类一区，抑制了能產(chǎn)生膨脹作用的鈣礬石的生成人人干人操搞，同時(shí)，有Ca2晶體析出久久999这里有精品免费，它們共同構(gòu)成土顆粒間和土顆粒表面的充填物和包裹物鲁鲁鲁www，使水泥固化土的孔隙明顯減小，密度和強(qiáng)度得到極大提高欧美激情性交网。

The results showed that the interlamellar spacing of improved organic bentonite was larger than that of organic bentonite and Na-bentonite,and the more the interlayer spacing of bentonite,the more advantageous the binder to the intercalation reaction between starch and bentonite,leading to higher dry tensile strength.

結(jié)果表明在线视频观看一区www，PVA插層改性后的有機(jī)膨潤土的層間距大于有機(jī)膨潤土的層間距大于Na基膨潤土的層間距，膨潤土的層間距越大男女男永久备用网站地址，越有利于淀粉與膨潤土的插層反應(yīng)哪个网站有偷拍视频，得到的復(fù)合粘結(jié)劑的干強(qiáng)度也越高。

Finally, it was proved that the formula for the lateral soil pressure could be used to soil nailing walls with different cut slope angles for both cohesive and noncohesive soils.

實(shí)例計(jì)算結(jié)果表明：建立的土釘墻側(cè)向土壓力計(jì)算公式適用于不同放坡角度的土釘墻阿v视频免费观看国产视99频，不但適用于無黏性土欧美一级a免费，同樣適用于黏性土。

About 30 soil caves were found in thislayer during drilling. They are grouped into two types. One is shaftlike soil caves formed bypiping and the other is non-shaftlike developed under the influence of structure features ofthe layer.

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