The paper has a further research on the influence of compound soil nailing behavior in the perspective and the axial strength of the soil nails of the effect of the stiffness of soil, the stiffness of soil-cement mixing piles, the width of soil-cement mixing piles, the length of nails, the angle of nails. The paper also has a research on the influence of compound soil nailing behavior in the perspective of silt and hardpan of the effect of the width of soil-cement mixing piles.

深入分析了土體的彈性模量，水泥攪拌樁的彈性模量91中文字幕永久在线看，水泥攪拌樁擋墻的寬度乱伦视频无码一级，土釘長度的變化以及土釘傾角的變化對復合型土釘墻變形性狀和土釘軸力的影響，以及水泥攪拌樁擋墻的寬度在淤泥土層以及砂土土層中對復合型土釘墻支護變形性狀的影響亚洲区综合网。

Based on the result of different density under undrained condition, analysis the character of stress-strain, pore-water pressure and stress path, research the critical-state, strength of steady-state, pore-water coefficient and static liquescence of saturated loose sample, found the differentia of different density under different confining pressure.

在不同密實度土樣CU試驗結果基礎上私库AV操一操人人操，分析了土樣的應力-應變日韩孕妇自拍视频网站大全在线观看、孔隙水壓力以及應力路徑特征全国精品第一区黄片；對蔣家溝礫石土的臨界狀態(tài)、穩(wěn)態(tài)強度日本www免费观看、孔隙水壓力系數(shù)以及松散土樣的靜態(tài)液化勢進行了分析黄黄黄黄aaaa片，得出了不同密實度土樣在不同圍壓下的力學性狀的差異。

County soil parent material is limestone, sandstone, gneiss evolved over the three types of rock, soil can be divided into four categories, namely, mountain meadow soil, mountain brown, cinnamon, meadow soil, Cinnamon Is the backbone of the county soil.

全縣土壤母質(zhì)是由石灰?guī)r黄色网址免费呀、沙巖国产成人麻豆tv在线看、片麻巖三類母巖演變而成的，可分為四個土類思思热在线免费观看，即山地草甸土日韩超刺激黄片、山地棕壤、褐土欧美黄色视频欧美黄色视频、草甸土欧美喷水大屁股，褐土是全縣的骨干土壤。

Compared carbon pools and turnovertime under different soil types, the result shows: soil total organic carbon is grey cinnamonforest soil＞dark-brown soil＞meadow soil＞brown coniferous forest soil＞red soil＞yellowsoil＞yellow brown soil＞paddy soil＞red soil＞flubo-aquic soil＞fengsha soil,temperate forest soil＞subtropical forest soil＞subtropical cropland soil＞temperate dry soil.Active carbon is temperate forest soil＞subtropical soil.

對不同土壤類型的碳庫及其駐留時間進行比較国产专区系列，得出：有機碳含量呈現(xiàn)：灰褐土＞暗棕壤＞草甸土＞棕色針葉林土＞紅壤＞黃壤＞黃棕壤＞水稻土＞農(nóng)田紅壤＞潮土＞風沙土大陆视频国产精品短视频，溫帶森林土壤＞亞熱帶森林土壤＞亞熱帶農(nóng)田土壤＞溫帶干旱土壤；活性碳含量是溫帶森林土壤＞亞熱帶的土壤色库视频。

Vesic's solutions to cavity expansion that include cylindrical cavity expansion and spherical cavity expansion are introduced. Then cylindrical cavity expansion theory is applied to study compaction effect of pile driving in saturated soil. Based on the results of conventional triaxial tests, a trilinear curve model is used to simulate stress-strain curve of strain-softening materials. Meanwhile, trilinear curves are also used to simulate curves of volumetric strain, minor principal strain and major principal strain. By using elasto-plastic theory, analytical solutions to cylindrical cavity expansion in strain-softening soil are presented. According to the mechanism of statically pressed pile driving, compaction effect of pile tip can be viewed as hemispheric cavity expansion. Therefore spherical cavity expansion theory is applied to obtain the solutions to stress, strain, displacement fields and final pressure. Resistance force of pile tip is calculated to estimate static pressure.

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Determined by the specific geological background of Longhetun, the characteristics of the soil resources show abundant calcium and leaning to alkaline. Monomial indexes to evaluate the revisal coefficient of soil adapted to karst mountains areas were screened out combined with the function of karst dynamics system and analysis of characters of each factor about fertility in soil. Predigestion model to soil revisal coefficient monomial assessment was established by successful importation of the content of nutrition elements in plant body, latent efficient elements in soil and available thickness of soil in the cranny of epikarst according to the characters that three carriers of soil, soil water and karst water supply nutrition to plants and two layers of foundation consist of surface soil and soil in epikarst cranny, and several types of soil revisal coefficient and weather-soil productive potentiality were calculated, the results show that the soil revisal coefficient was even more practical after modification than before, which make up of innovation of this study.

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Based upon analysis of the factors influencing the compaction quality of backfilled soil such as compaction work ,moisture content of soil and thickness of soil layers,two dry density inspection methods are introduced: ring simpler method and sand cone method,in order to ensure compaction quality of backfilled soil.

介紹了工程特點，對壓實功人人操人人看操、土的含水量和每層鋪土厚度等影響回填土壓實質(zhì)量的因素進行了分析三级黄色A片，并介紹了環(huán)刀法和灌砂法兩種回填土干密度的檢測方法，以確蔽畚畚凼悠翟谙哂谰妹夥压劭赐荆回填土的壓實質(zhì)量亚洲人兽网。

When rolling the roadbed, the best degree of compaction is 93%~95%. When taking Aeolian sand for preventing the water rising, the Aeolian sand replacement should be set above water table, which should normally be made at 50~80 cm depth of soil base with 15~20 cm thickness of replacement for medium wet subgrade and 20~30 cm for wet subgrade. When using stabilized soil inorganic binder for prevention and control of the frost damage, the thickness of the binder is about 25 cm The mass proportion of cement, coal and Aeolian is about 6:40:54 and lime, fly ash and aeolian is about 14:30:56. Based on these, comparative evaluation for various preventing and curing measures of the Aeolian subgrade was given.

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Main research contents as follows:(1) The four destruction models and respective stability analysis methods are discribed in this paper, whose working mechnism and calculating methods are given. In addition, some defects of every method are also discussed ;(2) On the basis of traditional active soil pressure method and expirical siol pressure method , the calculating model of the laternal earth pressure which is a tetragon with the largest value in the center side is addressed.

主要工作如下：(1)本文給出了復合土釘墻的穩(wěn)定性分析方法，該方法介紹了復合土釘墻的四種破壞類型www自拍.com，分析了每種破壞類型的受力機理日韩在线第二页，并給出了相應的計算方法和計算方法中的一些不足；(2)在傳統(tǒng)的主動土壓力和經(jīng)驗土壓力的基礎上av。天堂网，建立了土釘墻中間大超级乱婬片67194免费看、上下小的四邊形狀分布的側向土壓力的計算模式。

In addition, some defects of every method are also discussed ;(2) On the basis of traditional active soil pressure method and expirical siol pressure method , the calculating model of the laternal earth pressure which is a tetragon with the largest value in the center side is addressed.

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