[1]姚达,王希晨,赵虎,等.三维水泥土搅拌桩成桩工艺现场试验[J].江苏水利,2023,(07):63-67.
 YAO Da,WANG Xichen,ZHAO Hu,et al.Field tests of construction technique of three-dimensional cement-soil mixing (TCM) pile[J].JIANGSU WATER RESOURCES,2023,(07):63-67.
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三维水泥土搅拌桩成桩工艺现场试验()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年07期
页码:
63-67
栏目:
水利工程建设
出版日期:
2023-07-15

文章信息/Info

Title:
Field tests of construction technique of three-dimensional cement-soil mixing (TCM) pile
文章编号:
1007-7839(2023)07-0063-0005
作者:
姚达13王希晨2赵虎4邱成春5刘振建5
(1. 江苏省工程勘测研究院有限责任公司,江苏 扬州 225000;2. 南水北调东线江苏水源有限责任公司,江苏 南京 210029;3. 江苏鸿基水源科技股份有限公司,江苏 扬州 225000;4. 南水北调东线江苏水源有限责任公司徐州分公司,江苏 徐州 221018;5. 盐城工学院 土木工程学院,江苏 盐城 224051)
Author(s):
YAO Da13 WANG Xichen2 ZHAO Hu4 QIU Chengchun5 LIU Zhenjian4
(1. Jiangsu Province Engineering Investigation and Research Institute Co.,Ltd.,Yangzhou 225000, China;2. The Eastern Route of South-to-North Water Diversion Jiangsu Water Resource Co.,Ltd.,Nanjing 210029, China;3. Jiangsu Hongji Water Technology Co.,Ltd.,Yangzhou 225000, China;4. Xuzhou Branch of the Eastern Route of South-to-North Water Diversion Jiangsu Water Resource Co.,Ltd.,Xuzhou 221018, China;5. School of Civil Engineering, Yancheng Institute of Technology, Yancheng 224051, China)
关键词:
TCM桩成桩工艺供浆方式常规水泥土搅拌桩现场试验
Keywords:
TCM pile construction technique slurry supply method conventional cement-soil mixing pile field tests
分类号:
TV553
文献标志码:
B
摘要:
针对常规水泥土搅拌桩搅拌不充分、混合不均匀等瓶颈,研发了一种四轮三维搅拌钻头,开展了三维水泥土搅拌桩(TCM桩)成桩工艺现场试验,通过桩身的标准贯入试验、芯样无侧限抗压强度及直接剪切试验,将双浆、一气一浆、单浆3种供浆方式形成的TCM桩与四搅四喷工艺形成的常规水泥土搅拌桩进行了对比分析。结果表明,TCM桩不同深度的标准贯入击数、无侧限抗压强度、直剪抗剪强度等指标优于常规水泥土搅拌桩。另外,不同工艺的成桩质量具有明显差异,单浆工艺形成的桩体平均标准贯入击数最大,一气一浆工艺形成的桩体无侧限抗压强度和直接抗剪强度最高。
Abstract:
To overcome the insufficient and uneven mixing of conventional cement-soil mixing pile, a new four-wheel three-dimensional stirring drill was developed and field tests for three-dimensional cement-soil mixing (TCM) pile was carried out. The TCM piles formed by three slurry supply methods of double slurry, one air and one slurry, and single slurry were compared and analyzed with the conventional soil-hydraulic mixing piles formed by four churning and four spraying processes through the standard penetration test (SPT) of the piles, the unconfined compressive strength test, as well as direct shear test. The results indicate that the SPT blow count, unconfined compressive strength and shear strength of TCM piles at different depths are better than those of conventional mixing cement-soil pile. In addition, the quality of TCM pile is closely related to its construction technique, where the SPT blow count of the piles by single-pulp slurry supply method is the highest, while the unconfined compressive strength and shear strength of piles by one gas and one slurry method is the highest.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2023-04-06
基金项目:江苏省水利科技项目(2020012),江苏南水北调科技研发项目(JSNSBD202106)
作者简介:姚 达(1990—),男,工程师,本科,主要从事岩土工程技术应用研究及岩土工程施工工作。E-mail:yumanshu@126.com
更新日期/Last Update: 2023-07-30