砂性土层泥水盾构泥浆成膜性能试验

doi:10.13722/j.cnki.jrme.2014.0056

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1038 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要泥水盾构在高渗透性砂性土层施工中泥浆的成膜质量会影响工程的安全与进度，设计室内试验研究泥浆相对密度对滤水量的影响，采用均匀设计法对不同制浆材料在砂性土层中的填充效果进行实测与回归分析。结果表明，泥浆的相对密度反应了单位体积内所能提供的用于孔隙填充的颗粒数量，是影响滤水量以及填充致密程度的首要因素；泥膜的形成质量受到制浆材料的影响，在中粗砂地层中，孔隙可以由膨润土和黏土颗粒共同填充，而对砾砂地层中孔隙较大的区域，黏土的填充效果已不再显著，主要依靠膨润土水化后形成的胶结颗粒集合进行填充；中、粗砂与含砾中、粗砂地层中宜采用的泥浆相对密度为1.20～1.25，制浆材料宜选取膨润土、黏土共同配制的新浆与原浆混合浆液。结合南京地铁某越江隧道，实际施工过程中泥浆相对密度控制在1.20～1.25，且每制备1 m3新浆，膨润土加入量为3～5 kg，施工反馈表明对应的掘进区间出浆相对密度稳定，研究成果可为现场泥浆的配置与管理提供一定参考。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：土力学, 泥水盾构, 泥浆配比, 均匀试验, 滤水量, 致密程度

Abstract：A slurry infiltration apparatus was developed to study the laws of filter cake forming during slurry shield construction in high permeability and complex strata. The laboratory test was aimed at finding the influence of slurry properties and materials on filter cake forming process，during which the uniform design was used. Results show that the slurry proportion is the primary factors influencing the filter cake quality. Larger pores in gravel sand can be filled by the cementation sets after the hydration of bentonite particles. And in medium-coarse sand and gravel sand，the appropriate slurry proportion is between 1.20 and 1.25，slurry material is suitable to choose both bentonite and clay which is compound by new pulp and original pulp. According to the slurry management during construction，slurry proportion is set by 1.20–1.25 and the usage of bentonite is 3–5 kg every 1 m3 of new pulp. Feedback shows that the proportion of the original pulp is stable in the corresponding range，which is to say the filter cake is forming well and the excavation face is stable.

Key words： soil mechanics slurry shield slurry materials proportion uniform test water filtration compact degree

引用本文:

吴迪，周顺华，温馨. 砂性土层泥水盾构泥浆成膜性能试验[J]. 岩石力学与工程学报, 2015, 34(s1): 3460-3467.
WU Di，ZHOU Shunhua，WEN Xin. LABORATORY TEST AND APPLICATION OF FILTER CAKE FORMATION IN SAND DURING SLURRY SHIELD CONSTRUCTION. , 2015, 34(s1): 3460-3467.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2014.0056 或 http://www.rockmech.org/CN/Y2015/V34/Is1/3460

[1]	林存刚，张忠苗，吴世明，等. 泥水盾构掘进参数对地面沉降影响实例研究[J]. 土木工程学报，2012，45(4)：116-126.(LIN Cungang，ZHANG Zhongmiao，WU Shiming，et al. Case study of slurry shield driving parameters?s influences on ground surface settlements[J]. China Civil Engineering Journal，2012，45(4)：116-126.(in Chinese))
[2]	李昀，张子新，张冠军. 泥水平衡盾构开挖面稳定模型试验研究[J]. 岩土工程学报，2007，3(4)：1 074-1 079.(LI Yun，ZHANG Zixin，ZHANG Guanjun. Laboratory study on face stability mechanism of slurry shields[J]. Chinese Journal of Geotechnical Engineering，2007，3(4)：1 074-1 079.(in Chinese))
[4]	韦良文，张庆贺，邓忠义. 大型泥水盾构隧道开挖面稳定机理与应用研究[J]. 地下空间与工程学报，2007，3(1)：87-91.(WEI Liangwen，ZHANG Qinghe，DENG Zhongyi. Research on mechanism and application of face stability in large slurry shield tunneling[J]. Chinese Journal of Underground Space and Engineering，2007，3(1)：87-91. (in Chinese))
[6]	韦良文. 泥水盾构隧道施工土体稳定性分析与试验研究[博士学位论文][D]. 上海：同济大学，2007.(WEI Liangwen. Stability analysis of soil body in slurry shield tunneling and test research[Ph. D. Thesis][D]. Shanghai：Tongji University，2007.(in Chinese)) " target="_blank">
[8]	TONG M，JOHNAON W P. Excess colloid retention in porous media as a function of colloid size，fluid velocity，and grain angularity[J]. Environmental Science and Technology，2006，40(24)：7 725-7 731. " target="_blank">
[9]	LEE J，KOPLIK J. Network model for deep bed filtration[J]. Physics of Fluids，2001，13(5)：1 076-1 086. " target="_blank">
[11]	叶旭洪. 砂卵石地层泥水盾构泥浆特性对开挖面稳定性影响研究[硕士学位论文][D]. 北京：北京交通大学，2008.(YE Xuhong. Study on mud fluid properties for cutting face stability of slurry shield in sand gravel layer[M. S. Thesis][D]. Beijing：Beijing Jiaotong University，2008.(in Chinese)) " target="_blank">
[12]	WATANABE T，YAMAZAKI H. Giant size slurry shield is a success in Tokyo[J]. Tunnels and Tunnelling，1981，13(1)：13-17. " target="_blank">
[13]	闵凡路，朱伟，魏代伟，等. 泥水盾构泥膜形成时开挖面地层孔压变化规律研究[J]. 岩土工程学报，2013，35(4)：722-727.(MIN Fanlu，ZHU Wei，WEI Daiwei，et al. Change of pore water pressure in soil as filter cakes formed on excavation face in slurry shield[J]. Chinese Journal of Geotechnical Engineering，2013，35(4)：722-727. (in Chinese))
[16]	方开泰. 均匀设计与均匀设计表[M]. 北京：科学出版社，1994：69-97.(FANG Kaitai. Uniform design and uniform design table[M]. Beijing：Science Press，1994：69-97.(in Chinese)) " target="_blank">
[17]	HERZIG J P，LECLERC D M，LE GOFF P. Flow of suspension through porous media：application to deep bed filtration[J]. Industrial and Engineering Chemistry，1970，62(5)：8-35. " target="_blank">
[3]	徐明，邹文浩，刘瑶. 超大直径泥水盾构在砂土中的开挖面稳定性分析[J]. 土木工程学报，2012，45(3)：174-181.(XU Ming，ZOU Wenhao，LIU Yao. Face stability of large slurry shield-driven tunnel in sands[J]. China Civil Engineering Journal，2012，45(3)：174-181.(in Chinese))
[5]	ANAGNOSTOU G，KOVARI K. The face stability of slurry-shield-driven tunnel[J]. Tunneling and Underground Space Technology，1994，9(2)：165-174. " target="_blank">
[10]	韩晓瑞，朱伟，刘泉维，等. 泥浆性质对泥水盾构开挖面泥膜形成质量影响[J]. 岩土力学，2008，29(增1)：288-292.(HAN Xiaorui，ZHU Wei，LIU Quanwei，et al. Influence of slurry property on filter-cake quality on working face of slurry shield[J]. Rock and Mechanics，2008，29(Supp.1)：288-292.(in Chinese)) " target="_blank">
[15]	李凤远. 狮子洋隧道盾构泥浆流量参数选择探析[J]. 建筑机械化，2009，(1)：70-71.(LI Fengyuan. Talking about shield slurry discharge parameter selection of Shiziyang tunnel[J]. Construction Mechanization，2009，(1)：70-71.(in Chinese))
[7]	ALEM A，ELKAWAFI A，AHFIR N D，et al. Filtration of kaolinite particles in a saturated porous medium：hydrodynamic effects[J]. Hydrogeology Journal，2013，21(3)：573-586.
[14]	FRITZ P. Additives for slurry shields in highly permeable ground[J]. Rock Mechanics and Rock Engineering，2007，40(1)：81-95.