模塊式加筋土擋墻及力學(xué)行為現(xiàn)場測試中英文分析-全文預(yù)覽
【正文】 basic present decreasing trend with time. This is because the reinforced soil retaining wall under the gravity loads of posite foundation settlement. Flexible geogrid is set in the soil will produce film or net effect, the geogrid on soil formation lift, which changes the vertical stress distribution, the weight of soil on the base of the vertical earth pressure is reduced. ?。?）由于深層水泥攪拌樁復(fù)合地基的樁土應(yīng)力比大于擠密砂礫樁復(fù)合地基的樁土應(yīng)力比，使得深層水泥攪拌樁復(fù)合地基中不同部位的豎向應(yīng)力不均勻性較大。這是由于隨著填土高度的增加，擋墻發(fā)生水平變形，從導(dǎo)致側(cè)向土壓力減少。在墻高的中部以下，擠密砂礫樁復(fù)合地基上加筋土擋墻的側(cè)向土壓力逐漸減小，在靠近墻底部位接近零，而水泥攪拌樁樁復(fù)合地基上加筋土擋墻的側(cè)向土壓力呈增大趨勢。 (4) can be seen from the graph, during construction on the two kinds of posite foundation reinforced soil retaining wall under 3 m high wall after packing the same location, and the measured lateral earth pressure also roughly, illustrates the reliability of test results. 通過實測數(shù)據(jù)與經(jīng)典理論解的對比分析，可以得出以下結(jié)論： Through paring and analyzing the measured data and the theoretical solution of classic can draw the following conclusions: ?。?）基底豎向土壓力隨填土高度的提高而增大，但應(yīng)力增長速率基本相同，沿筋長方向，呈非線性分布最大值發(fā)生在拉筋中間部位。 Brace the measured strain is less than %. 7?！?2) during the construction of different lateral earth pressure increases with the increase of the filling height, but the growth rate of the earth pressure decreases with the increase of filling soil height, the distribution of lateral earth pressure along wall height is nonlinear, each section of the measured soil pressure is less than the static earth pressure calculated on the basis of the classical earth pressure theory and the active earth pressure. ?。?）在加筋土擋墻施工過程中，各拉筋拉力隨上覆填土厚度的提高而增大，增長速率逐漸減??；%。說由于土工格柵拉筋作用與筋土摩擦作用，以及格柵對土體嵌固作用，使加筋土擋墻具有一定整體穩(wěn)定性，但擋墻面板實際受力很小。一則說明前者的水平位移大于后者，二則可能與擠密砂礫樁復(fù)合地基在荷載作用下發(fā)生排水固結(jié)，地基沉降量大于水泥攪拌樁符合地基沉降量有關(guān)?！ ?墻背側(cè)向土壓力(3) because of the deep cement mixing pile posite foundation of pile soil stress ratio is greater than the paction pile soil stress ratio of gravel pile posite foundation, makes the deep cement mixing pile posite foundation in different parts of the vertical stress nonuniformity is bigger. Because the reinforced bod
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