[1]胡长明,崔 耀,王雪艳,等.土压平衡盾构施工穿越砂层渣土改良试验研究[J].西安建筑科技大学学报:自然科学版,2013,45(06):761-766.[doi:10.15986/j.1006-7930.2013.06.001]
　HU Chang-ming,CUI Yao,WANG Xue-yan,et al.Soil improvement for earth pressure balance shields construction in full section sand layer[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2013,45(06):761-766.[doi:10.15986/j.1006-7930.2013.06.001]
点击复制

土压平衡盾构施工穿越砂层渣土改良试验研究()
分享到：

西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
45
期数:
2013年06期
页码:
761-766
栏目:
出版日期:
2013-12-31

文章信息/Info

Title:
Soil improvement for earth pressure balance shields construction in full section sand layer
文章编号:
1006-7930(2013)06-0761-06
作者:
胡长明1; 崔 耀2; 王雪艳1; 贡少瑞1; 张文萃1
(1.西安建筑科技大学土木工程学院,陕西 西安 710055; 2.郑州大学综合设计研究院有限公司,河南 郑州 450002)
Author(s):
HU Chang-ming1; CUI Yao2; WANG Xue-yan1; GONG Shao-rui1; ZHANG Wen-cui1
(1.School of Civil Engineering, Xian Univ. of Arch.& Tech., Xian 710055,China; 2.Corporation of Zhengzhou University multi-functional design and research academy, Zhengzhou 450002, China)
关键词:
土压平衡盾构; 非适应性; 渣土改良; 掺入比; 刀盘温度
Keywords:
earth pressure balance shield;  unadaptability;  soil improvement;  cement ratio;  cutter head temperature
分类号:
U 455.43
DOI:
10.15986/j.1006-7930.2013.06.001
文献标志码:
A
摘要:
针对地铁隧道采用土压平衡盾构施工穿越砂层时表现出的非适应性开展了渣土改良及现场试验研究,通过对比渣土经不同配比膨润土泥浆改良前后的抗剪强度、渗透性及塌落度,得到了合理的膨润土浓度及泥浆掺入比.研究表明:当砂层采用浓度为1∶10膨润土泥浆改良后,渣土的塑性及流动性得到有效提高,抗剪强度及渗透性大幅降低;控制泥浆体积掺入比为1∶5进行掘进施工时,盾构机刀盘内外温度及磨损程度明显降低、排土顺畅且推进速度提高.研究成果对于解决土压平衡盾构穿越砂层时土压难以平衡、排土不正常、刀盘扭矩过大及磨损过快等问题具有参考价值.
Abstract:
Soil improvement and field research are made for the unadaptability in earth pressure balance shield in the sand layer. Comparing shearing strength, slump and permeability of soil before and after the improvement, suitable bentoniteslurry concentration and cement ratio are obtained. The study shows that plastic flow of soil is improved and shearing strength and permeability decreased greatly with bentonite slurry concentration of 1:10.Temperature and wear degree of shield cutter head are reduced significantly, soil output is smooth and shield excavation efficiency increased with slurry cement ratio of 1:5.The research has certain reference significance for solving problems of shield work-face unbalance, abnormal soil output, high torque and excessive wear of shield cutter head in earth pressure balance shield in sand layer

参考文献/References:

[1] 朱 伟, 郭 涛, 魏 康林. 盾构用 气 泡 的 性 能 及 对 开 挖 土 体 改 良 效 果 影 响 [J]. 地 下 空 间 与 工 程 学 报,2006, 2(4) :571-577.
ZHU Wei, GUO Tao, WEI Kang-lin. The performance of foams in shield tunneling method and its effect on the soil conditioning[J].Chinese Journal of Underground Space and Engineering, 2006, 2(4) :571-577.
[2] 宋 克志, 汪 波, 孔 恒. 无水砂 卵 石 地 层 土 压 盾 构 施 工 泡 沫 技 术 研 究 [J]. 岩 石 力 学 与 工 程 学 报, 2005, 24(13) :2327-2332.
SONG Ke-zhi, WANG Bo, KONG Heng. Study on foam technology during shield excavation in sandy cobble bed without water[J].Chinese Journal of Rock Mechanics and Engineering, 2005, 24(13) :2327-2332.
[3] 闫 鑫, 龚 秋明 , 姜厚停. 土压平 衡 盾 构 施 工 中 泡 沫 改 良 砂 土 的 试 验 研 究 [J]. 地 下 空 间 与 工 程 学 报,2010, 6 (3) :449-453.
YAN Xin, GONG Qiu-ming, JIANG Hou-ting. Soil conditioning for earth-pressure balanced shields excavation in sand layers[J].Chinese Journal of Underground Space and Engineering, 2010, 6(3) :449-453.
[4] 张 敏. 扩展土压平衡盾构在含水地层中的适应性[J]. 隧 道建设,2003, 23(5) :4-6.
ZHANG Min. Extend the adapt ability of EPB shields in watery stratum[J].Tunnel Construction, 2003, 23(5) :4-6.
[5] 张 旭东 . 土压平衡盾构穿越富水砂层施工技术探讨[J]. 岩土工程学报,2009, 31(9) :1445-1449.
ZHANG Xu-dong. Construction technology of earth pressure balance shield in watery sandy stratum[J].Chinese Journal of Geotechnical Engineering,2009, 31(9): 1445- 1449.
[6] 代 仁平, 宫全美. 土压平衡盾构砂卵石处理模式及应用分析[J]. 土木工程工程学报,2010, 43 (S2) :292-298.
DAI Ren-ping, GONG Quan-mei. Processing model and application of sand and gravel of earth pressure balance shield[J].China Civil EngineeringJournal,2010, 43 (S2) : 292- 298.
[7] 魏 康林. 土压平衡盾构施工中泡沫和膨润土改良土体的微观机理分析[J]. 现代隧道技术,2007, 44(1) :73-77.
WEI Kang-lin. Micro-mechanism analysis for the soil improvement by foam and bentonite in EPB shield tunneling[J].Modern Tunneling Technology,2007, 44(1) :73-77.
[8] 朱 伟, 陈 仁俊. 盾构隧道基本原理及在我国的使用情况[J]. 岩土工程界,2001, 4(11) :19-21,65-66.
ZHU Wei, CHEN Ren-jun. The basic principles of Shield Tunnel and use in China[J]. Geotechnical Engineering World ,2001, 4(11) :19-21,65-66.
[9] FENG Qiu-ling. Soil conditioning for modern EPB drives[J].Tunnels and Tunneling International,2004, 36(12) :18-20.
[10] 张 明晶 . 土压平衡式盾构施工中闭塞问题的发生机理及其防治措施研究[D]. 南京: 河海大学,2004.ZHANG Ming-jing. Study on the mechanism and curing method of blocking in EPBS[D].Nanjing: Hohai University,2004.
[11] HOULSBY Guy, MARRIT Robert. Easing the way soil conditioning[J].Tunnels and Tunneling International,2003, 35(6) :48-50.
[12] 汪 国锋. 北京地铁十号线土压平衡盾构土体改良技术应用研究[J]. 现代隧道技术,2009, 46(4) :77-82.
WANG Guo-feng. Siol Improvement technologies and implementation for EPB shield in Beijing subwayline10[J].Modern Tunneling Technolog,2009, 46(4) :77-82.
[13] 唐 益群, 宋永辉, 周念清, 等. 土压平衡盾构在砂 性土中施工问题的试验研究[J]. 岩 石 力 学 与 工 程 学 报,2005, 24(1) :52-56.
TANG Yi-qun,SONG Yong-hui,ZHOU Nian-qing, et al. Exeperimental research on troubles of EPB shield construction in sandy soil[J].Chinese Journal of Rock Mechanics and Engineering,2005, 24(1) :52-56.

相似文献/References:

[1]胡长明,张文萃,梅 源,等.土压平衡盾构穿越含砂土层地表变形规律与控制技术[J].西安建筑科技大学学报:自然科学版,2013,45(03):341.[doi:10.15986/j.1006-7930.2013.03.007]
　HU Chang-ming,ZHANG Wen-cui,MEI Yuan,et al.The earth surface deformation and control technology as EPB shield machine driving through layer with sand[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2013,45(06):341.[doi:10.15986/j.1006-7930.2013.03.007]

备注/Memo

备注/Memo:
收稿日期:2012-12-31 修改稿日期:2013-11-25
基金项目:陕西省科技攻关计划项目(2011k10-20);包头市科技计划项目(2011x1006;2012x1002)
作者简介:胡长明(1963-),男,教授,博士研究生导师,博士,从事土木工程施工与管理研究.
更新日期/Last Update: 2015-10-05