【摘要】：隨著我國"一帶一路"倡議發(fā)展主線的逐步開展,寒區(qū)交通運(yùn)輸工程必將得到廣泛的建設(shè)。為確保寒區(qū)工程構(gòu)筑物在動(dòng)荷載作用下的長期穩(wěn)定,對(duì)凍土動(dòng)力學(xué)相關(guān)理論與實(shí)踐問題的研究迫切地需要做出解答。凍土動(dòng)力學(xué)主要研究的是動(dòng)荷載作用下凍土的強(qiáng)度、變形和穩(wěn)定性問題。通過歸納和總結(jié),闡述了凍土動(dòng)力學(xué)在動(dòng)力學(xué)參數(shù)、動(dòng)強(qiáng)度、動(dòng)應(yīng)力-應(yīng)變關(guān)系、動(dòng)蠕變特征及蠕變模型、凍土場(chǎng)地地震反應(yīng)特性、凍土區(qū)樁基結(jié)構(gòu)動(dòng)力特性、列車荷載下凍土路基的動(dòng)力響應(yīng)等7個(gè)方面的研究進(jìn)展及成果,并結(jié)合各方向的發(fā)展趨勢(shì)進(jìn)行了展望。
[Abstract]:With the development of Belt and Road's initiative, the transportation project in cold area will be widely constructed. In order to ensure the long-term stability of engineering structures in cold regions under dynamic load, the theoretical and practical problems related to frozen soil dynamics need to be solved urgently. The dynamics of frozen soil is mainly concerned with the strength, deformation and stability of frozen soil under dynamic load. The dynamic parameters, dynamic strength, dynamic stress-strain relationship, dynamic creep characteristics and creep model of frozen soil dynamics, seismic response characteristics of frozen soil site, dynamic characteristics of pile foundation structure in frozen soil region are expounded. The research progress and achievements in seven aspects, such as dynamic response of frozen subgrade under train load, are discussed, and the development trend of each direction is prospected.
【作者單位】： 中國科學(xué)院西北生態(tài)環(huán)境資源研究院凍土工程國家重點(diǎn)實(shí)驗(yàn)室;中國科學(xué)院大學(xué);南京師范大學(xué)地理科學(xué)學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(41630636;41401077;41023003)資助
【分類號(hào)】：P642.14

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