[1]马利军,王友枞,杨明勇,等.海陆交互相不同地层盾构掘进影响对比分析[J].高速铁路技术,2023,14(06):19-25.[doi:10.12098/j.issn.1674-8247.2023.06.004]
 MA Lijun,WANG Youzong,YANG Mingyong,et al.Comparative Analysis for Impact of Shield Tunneling on Different Strata in Marine-terrestrial Interaction Zone[J].HIGH SPEED RAILWAY TECHNOLOGY,2023,14(06):19-25.[doi:10.12098/j.issn.1674-8247.2023.06.004]
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海陆交互相不同地层盾构掘进影响对比分析()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
14卷
期数:
2023年06期
页码:
19-25
栏目:
理论探索
出版日期:
2023-12-30

文章信息/Info

Title:
Comparative Analysis for Impact of Shield Tunneling on Different Strata in Marine-terrestrial Interaction Zone
文章编号:
1674-8247(2023)06-0019-07
作者:
马利军1王友枞1杨明勇1朱正国2张硕2
1.中交二公局铁路建设有限公司,西安 710000;2.河北省金属矿山安全高效开采技术创新中心,石家庄 050043
Author(s):
MA Lijun1WANG Youzong1YANG Mingyong1ZHU Zhengguo2ZHANG Shuo2
1.CCCC-SHEC Railway Constrution Co. ,Ltd. ,Xi’an 710000 ,China;2.Hebei Technology and Innovation Center on Safe and Efficient Mining of Metal Mines ,Shijiazhuang 050043 ,China
关键词:
盾构施工渣土改良地表沉降数值模拟
Keywords:
shield tunnelingmuck improvementsurface settlementnumerical simulation
分类号:
TU455.43
DOI:
10.12098/j.issn.1674-8247.2023.06.004
文献标志码:
A
摘要:
为确保天津海陆交互相地层盾构掘进施工安全,本文根据海陆交互相典型地层(富水软土地层、饱和液化土地层和双层承压水地层)的物理力学特性与渣土改良试验结果,采用MIDAS-GTS软件对不同地层盾构掘进施工进行模拟,得到适用于各地层的合理盾构掘进参数,结果表明:(1)海陆交互相地层土样具有渗透性差、易于压缩、亲水性强和强度较低等特性;(2)当黏质粉土与淤泥质粉质黏土分别选用泡沫剂与膨润土的组合、单一泡沫剂作为改良剂时,可以满足渣土改良要求;(3)海陆交互相3种典型地层存在不同的盾构掘进建议值,且富水软土地层掘进参数建议值最小,双层承压水地层掘进参数建议值最大。
Abstract:
To ensure the safety of shield tunneling in the marine-terrestrial interaction strata in Tianjin,this paper analyzed the physical and mechanical properties of typical marine-terrestrial interaction strata (water-rich soft soil stratum,saturated liquefied soil stratum,and double confined water stratum) and the results of spoil improvement experiments. The MIDAS-GTS software was used to simulate the shield tunneling in different strata,thereby deriving reasonable shield tunneling parameters suitable for each stratum. The results show:(1)The soil samples in the marine-terrestrial interaction strata have characteristics such as poor permeability,a high propensity to compress,strong hydrophilicity,and low strength. (2)When a combination of foaming agents and bentonite is selected for clay and silt clay respectively,and single foaming agents as modifying agents respectively,muck improvement requirements could be met. (3)The three typical strata found in marine-terrestrial interaction zones each have different recommended shield tunneling values. The suggested tunneling parameter value is lowest for the water-rich soft soil stratum,and highest for double confined water stratum.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2023-10-09
作者简介:马利军(1977-),男,高级工程师。
基金项目:国家自然科学基金项目(51978424)
更新日期/Last Update: 2023-12-30