模塊式加筋土擋墻及力學行為現(xiàn)場測試中英文分析(文件)
【正文】 he relative strain is not greater than 10%, 2% strain when the tensile strength of not less than kN, 5% strain in the tensile strength of not less than kN, (120) for a long time creep limit strength of not less than 34 kN/m. The strength of the retaining wall upper grille should be greater than kN/m, relative strain is not more than 10%, 2% strain tensile strength of not less than kN, 5% strain tensile strength of not less than kN, (120) for a long time creep limit strength is greater than kN/m. From the base to the wall in the reinforced soil retaining wall back setting 25 cm gravel filter layer. Outside the gravel layer 2 ~ m within the scope of filling 8% lime soil. Dirt to m, m above the filling of fly ash, in order to reducing the overall weight, in order to achieve the filling pressure of the retaining wall is reduced. 2 測點布設方案 2 measuring point layout scheme 在現(xiàn)場選取三個斷面進行試驗。相對應變不大于10%，2%，5%，長期（120年）。采用C25混凝土預制塊作為擋墻面板，HDPE單向土工格柵在模塊內(nèi)預埋6cm，并外留一段完整肋條，加長土工格柵與預埋土工格柵通過連接棒連接。結果表明該擋墻具有較好的整體穩(wěn)定性，實測所得側向土壓力小于通過經(jīng)典理論計算的靜止土壓力和主動土壓力，%。Based on modular high fill reinforced soil retaining wall of the field test, studies the characteristic under high fill modular mechanical behavior of reinforced soil retaining wall. Results show that the retaining wall has good overall stability, and the measured lateral earth pressure less than by classical theory of calculate the static earth pressure and the active earth pressure, the test section of the brace of the measured strain is less than %. 1 工程概況 1 project summary 張承高速路部分路段線路兩側房屋密集，且還要修筑輔道。（即每兩層模塊）鋪設一層土工格柵?！ ∮苫A至墻頂在加筋土擋墻背設置25cm砂礫反濾層。A斷面處地基采用深層水泥攪拌樁處理，灰土內(nèi)3m高度填素土，3m以上填粉煤灰；B斷面同樣采用深層水泥攪拌樁復合地基，石灰土上填筑粉煤灰；C斷面采用擠密砂礫樁復合地基處理，灰土上填筑粉煤灰。隨著施工進度的發(fā)展，墻逐步填高，墻面板承受的土壓力也逐步增大，墻背在主動土壓力作用下會發(fā)生向外的水平位移，引起墻體外傾?！ ach section during the construction of basement vertical distribution curve of stress with the filling height growth, and each time after the pletion of the distribution of as shown in figure 2 ~ 3. （1）隨著填土高度的增大，基底豎向土壓力不斷增大，應力增長速率基本相當?！?2) after the pletion of basement vertical stress
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