任樓礦北風(fēng)井凍結(jié)方案及實測分析
[Abstract]:In this paper, the difficulties existing in the deep shaft freezing construction are first understood, and the main factors affecting the freezing construction are obtained by consulting the relevant documents. Here, the freezing temperature field which affects the effective thickness of the freezing wall is studied. Based on the research of freezing temperature field, the research status of freezing temperature field at home and abroad and the basic concept of freezing temperature field are reviewed. After fully understanding the theoretical concept of freezing temperature field, ANSYS software is used to simulate the difference of temperature field distribution between two different freezing methods in the same strata, and the results are compared with the actual freezing method in the field. After the comparison and analysis of the above three freezing methods, the development law of freezing temperature field under similar geological and hydrological conditions is forecasted in advance and some reasonable suggestions are put forward for the freezing method. Taking the north wind well of Renlou coal mine as the research object, the design freezing depth of the north wind well is 308m by obtaining the relevant data. In this paper, the method of long-leg differential freezing and double-row hole freezing are used to simulate the freezing process, and the development of temperature field located at the cross section of 100m ~ 200mL ~ (271m) in different freezing methods is analyzed. Through the numerical calculation of the software, it is concluded that the cross loop time of the double row hole freezing model is about 50 days, and that of the long leg differential freezing model is about 60 days, which is roughly the same as the actual cross loop time on the spot. The results of ANSYS simulation show that the effective thickness of freezing wall grows slowly at 0 ~ 10 days, increases within 10 ~ 20 days, and slows down gradually after 20 days. Therefore, in the later design of shaft freezing, priority should be given to the short time category of rapid expansion of frozen wall thickness and reasonable arrangement can be made. If the conditions permit, the diameter of the freezing pipe can be increased, and the contact area between the frozen pipe wall and the formation can be increased. Thus, the cooling speed of the stratum around the freezing pipe can be increased, the time of freezing wall intersection can be shortened, and the excavation time can be advanced.
【學(xué)位授予單位】:安徽理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TD265.3
【參考文獻】
相關(guān)期刊論文 前10條
1 張宏斌;;礦井井筒凍結(jié)法施工探討[J];能源與節(jié)能;2014年12期
2 周盛全;陳海明;;白堊系地層深井凍結(jié)壁溫度場分布規(guī)律[J];冰川凍土;2013年05期
3 劉波;陳玉超;李東陽;宋常軍;;復(fù)雜地層差異溫度人工凍結(jié)試驗與數(shù)值分析[J];巖石力學(xué)與工程學(xué)報;2013年S2期
4 王允;王寶華;郭海偉;蔡鵬;;差異凍結(jié)法井筒施工技術(shù)在趙家寨煤礦的應(yīng)用[J];中州煤炭;2013年04期
5 姜國靜;王建平;劉曉敏;;超厚黏土層凍結(jié)壓力實測研究[J];煤炭科學(xué)技術(shù);2013年03期
6 張步俊;;對淮南礦區(qū)凍結(jié)井水文孔不溢水問題的探討[J];山西建筑;2012年25期
7 孫東霞;武勝男;沈科偉;;查干淖爾礦風(fēng)井凍結(jié)溫度場分析[J];煤炭技術(shù);2012年03期
8 王林;;凍結(jié)法鑿井技術(shù)探討[J];科技創(chuàng)新與應(yīng)用;2012年03期
9 錢耀麗;趙聯(lián)楨;;聚氨酯保溫材料在嚴寒地區(qū)水利工程中的應(yīng)用[J];甘肅水利水電技術(shù);2010年07期
10 吳康寧;;凍結(jié)法鑿井中的凍結(jié)管斷裂及其防治[J];安徽水利水電職業(yè)技術(shù)學(xué)院學(xué)報;2010年02期
相關(guān)會議論文 前2條
1 周金生;周國慶;商翔宇;王建州;周揚;;不同凍結(jié)模式下人工凍土凍脹規(guī)律的試驗研究[A];礦山建設(shè)工程新進展——2005全國礦山建設(shè)學(xué)術(shù)會議文集(上冊)[C];2005年
2 褚繼東;;凍結(jié)設(shè)計原則與施工方法探討[A];礦山建設(shè)工程新進展——2005全國礦山建設(shè)學(xué)術(shù)會議文集(上冊)[C];2005年
相關(guān)博士學(xué)位論文 前2條
1 張馳;富水巖層中新型單層凍結(jié)井壁關(guān)鍵施工技術(shù)與工藝研究[D];中國礦業(yè)大學(xué);2012年
2 李潘武;大體積混凝土非荷載應(yīng)力的施工系統(tǒng)控制[D];西安建筑科技大學(xué);2004年
相關(guān)碩士學(xué)位論文 前10條
1 周會會;我國煤炭價格波動及預(yù)測研究[D];太原理工大學(xué);2016年
2 彭高翔;鋼框架梁柱連接節(jié)點域的力學(xué)性能及其影響研究[D];湖南大學(xué);2014年
3 高娟;裂隙巖體凍結(jié)溫度場與滲流場耦合作用機理及應(yīng)用研究[D];中國礦業(yè)大學(xué);2014年
4 劉化寬;基于光纖光柵技術(shù)的立井井筒變形監(jiān)測預(yù)警方法及系統(tǒng)研究[D];北京交通大學(xué);2014年
5 方慶;多圈管凍結(jié)溫度場形成分析及工程應(yīng)用[D];安徽理工大學(xué);2012年
6 王岳峰;擾動地層凍結(jié)溫度場發(fā)展和分布規(guī)律研究[D];安徽理工大學(xué);2012年
7 謝超;低溫斜向預(yù)應(yīng)力路面水泥混凝土收縮性能研究[D];長安大學(xué);2012年
8 陳家俊;鋼鐵企業(yè)原燃料采購供應(yīng)問題研究[D];山東大學(xué);2010年
9 李密;深厚軟巖凍結(jié)壁厚度設(shè)計的數(shù)值模擬及分析[D];西安科技大學(xué);2010年
10 陳勇;開灤礦區(qū)深部開采地表移動規(guī)律的研究[D];河南理工大學(xué);2010年
,本文編號:2368716
本文鏈接:http://sikaile.net/kejilunwen/kuangye/2368716.html