本文選題：人工地層凍結(jié)法　切入點(diǎn)：環(huán)形雙圈凍結(jié)管　出處：《煤炭學(xué)報(bào)》2017年09期 　論文類型：期刊論文

【摘要】：對于環(huán)形布管凍結(jié)穩(wěn)態(tài)溫度場的解,目前僅有單圈管凍結(jié)條件下的解析解,對于雙圈管凍結(jié)尚無解答。首先建立環(huán)形雙圈管凍結(jié)穩(wěn)態(tài)溫度場的模型。然后,應(yīng)用保角變換將廣義環(huán)形雙圈管(凍結(jié)圈內(nèi)部未凍實(shí))模型變換為直線型排布的模型,依據(jù)調(diào)和方程邊界可分離性,將直線型排布模型分解為2個(gè)特殊單排管凍結(jié)問題,從而得到廣義環(huán)形雙圈管的溫度場解析解。最后,應(yīng)用ANSYS進(jìn)行了熱力學(xué)數(shù)值模擬計(jì)算和物理模型實(shí)驗(yàn)結(jié)果以驗(yàn)證解析解。結(jié)果表明:在凍土帷幕充分交圈后,數(shù)值模擬結(jié)果和解析解結(jié)果基本一致,與實(shí)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(jì)大學(xué)地下建筑與工程系;同濟(jì)大學(xué)巖土及地下工程教育部重點(diǎn)實(shí)驗(yàn)室;上海市隧道股份有限公司;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51478340) 浙江省自然科學(xué)基金資助項(xiàng)目(LZ13E080002) 交通運(yùn)輸部建設(shè)科技資助項(xiàng)目(2013318J11300)
【分類號】：TD265.3
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本文編號：1640632