水源熱泵抽取和回灌地下水對建筑物沉降的影響?yīng)?/div>
單明,劉忠昌,舒昭然,李穎
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(遼寧省建筑設(shè)計研究院,沈陽 110005)[摘要]地下水源熱泵抽取地下水形成大范圍的降水漏斗是否會引起地面及建筑物出現(xiàn)過大沉降一直為業(yè)內(nèi)關(guān)注。通過調(diào)查沈陽市應(yīng)用水源熱泵技術(shù)建筑物的現(xiàn)狀,經(jīng)理論分析、計算和室內(nèi)試驗得出,抽取、回灌地下水引起的地面附加沉降導(dǎo)致的沈陽市砂土地基上建筑物的變形均在規(guī)范允許范圍內(nèi)。[關(guān)鍵詞]水源熱泵;抽水;回灌;建筑物沉降Effect of using ground water heat pump draw-out and back pour technique on building settlementShan Ming, Liu Zhongchang, Shu Zhaoran, Li Ying(Building Design and Research Department of Liaoning Province, Shenyang 110005, China)Abstract:Whether a wide range of draw-out will cause the ground and buildings big settlement should to be solved soon. Based on the investigation of water-source heat pump technology application in Shenyang, theoretical analysis, calculation and laboratory test are carried out. The results show that buildings deformation owing to the extraction of groundwater recharge of the ground caused by the additional settlement of the sand foundation can meet the code demand.Keywords:ground water heat pump (GWHP); pump water; recharge; building settlement沈陽市科技局基金重點項目(1063204-4-00)。作者簡介:單明,教授級高級工程師,一級注冊結(jié)構(gòu)工程師,Email:syytgs@sina.com。參考文獻GB50366—2005地源熱泵系統(tǒng)工程技術(shù)規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2005.[2]中國地源熱泵發(fā)展研究報告(2008)[R]. 北京:中國建筑工業(yè)出版社,2008.[3]GB50007—2002建筑地基基礎(chǔ)設(shè)計規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2002.[4]黃文熙.土的工程性質(zhì)[M]. 北京:水利水電出版社,1983.[5]張云,薛禹群,吳吉春,等.抽灌水條件下上海砂土層的變形特征和變形參數(shù)[J].水利學(xué)報,2006,37(5):560-566.[6]孫更生,鄭大同.軟土地基與地下工程[M]. 北京:中國建筑工業(yè)出版社,1984.