本文選題：人工地層凍結法　切入點：環(huán)形雙圈凍結管　出處：《煤炭學報》2017年09期 　論文類型：期刊論文

【摘要】：對于環(huán)形布管凍結穩(wěn)態(tài)溫度場的解,目前僅有單圈管凍結條件下的解析解,對于雙圈管凍結尚無解答。首先建立環(huán)形雙圈管凍結穩(wěn)態(tài)溫度場的模型。然后,應用保角變換將廣義環(huán)形雙圈管(凍結圈內部未凍實)模型變換為直線型排布的模型,依據調和方程邊界可分離性,將直線型排布模型分解為2個特殊單排管凍結問題,從而得到廣義環(huán)形雙圈管的溫度場解析解。最后,應用ANSYS進行了熱力學數值模擬計算和物理模型實驗結果以驗證解析解。結果表明:在凍土帷幕充分交圈后,數值模擬結果和解析解結果基本一致,與實測溫度的吻合度也很高。
[Abstract]:For the solution of the steady state temperature field of annular tube freezing, there is only an analytical solution under the condition of single loop tube freezing, and no solution is given for the double loop tube freezing. Firstly, a model of freezing steady state temperature field of ring double loop tube is established. Then, the model of freezing steady state temperature field of ring double loop tube is established. In this paper, the conformal transformation is used to transform the generalized circular double-loop tube (unfrozen solid inside the frozen ring) model into a linear arrangement model. According to the boundary separability of harmonic equations, the linear arrangement model is decomposed into two special single-row pipe freezing problems. The analytical solution of the temperature field of a generalized circular double-loop tube is obtained. Finally, the thermodynamic numerical simulation and physical model experiment results of ANSYS are used to verify the analytical solution. The results show that: after the frozen earth curtain is fully intersected, The numerical simulation results are in good agreement with the analytical solution, and the agreement with the measured temperature is also very high.
【作者單位】： 同濟大學地下建筑與工程系;同濟大學巖土及地下工程教育部重點實驗室;上海市隧道股份有限公司;
【基金】：國家自然科學基金資助項目(51478340) 浙江省自然科學基金資助項目(LZ13E080002) 交通運輸部建設科技資助項目(2013318J11300)
【分類號】：TD265.3
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本文編號：1640632