二重管双液旋喷施工技术快速加固软土地基

孙文娟; 沈水龙; 罗春泳; 金龙县

doi:10.13204/j.gyjz201003029

二重管双液旋喷施工技术快速加固软土地基

doi: 10.13204/j.gyjz201003029

1.
1. 上海交通大学土木工程系,上海200240;
2.
2. 韩国基础技术株式会社(KFT),韩国

基金项目:

上海市重点学科建设资助项目(B208);上海市科委(08201201600)

详细信息

作者简介:
孙文娟,女,1987年出生,硕士研究生. E－mail:sunwjhere@gmail.com

中图分类号: TU753.8
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- 文章访问数: 101
- HTML全文浏览量: 6
- PDF下载量: 142
- 被引次数: 0
出版历程
- 收稿日期: 2009-05-26
- 刊出日期: 2010-03-20

TWIN JET-GROUTING TECHNOLOGY WITH DUAL-ROD FOR INSTANT SOLIDIFICATION OF SOFT GROUND

1.
1. Department of Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China;
2.
2. Korea Foundation Technology Co. Ltd,Korea

摘要

摘要: 二重管高压喷射双液浆体施工技术是一种以普通波兰特水泥作固化剂和水玻璃作速凝剂使软土地基快速固化的技术,其关键设备包括高压水泥浆泵、速凝剂泵、分流器、双液输送钻喷杆、钻机和多功能双液喷头等。施工时多功能喷头的上部单喷嘴喷射高压水泥浆切割土体,下部复合式喷嘴同轴喷射高压水泥浆外包速凝剂二次切割土体并与之混合,短时间内形成具有一定强度的加固体,达到在数秒内快速加固软土地基的目的。由于速凝剂水玻璃的存在,该法在含水量丰富的地层中具有较好的加固效果。
- 二重管 /
- 高压旋喷 /
- 速凝剂 /
- 快速加固
Abstract: Twin jet-grouting technology with dual-rod (TDR) is a useful approach to solidify the soft soil instantly, in which accelerator is used to mixing with cement slurry. The main equipments of twin jet-grouting include a high pressure cement pump,a accelerator pump,a diverter,a drilling rod,a drill rig,and a multifunctional injection monitor with two nozzles,through which the high pressure cement slurry is jetted out from the upper nozzle,eroding soil,and the accelerator shrouded the high pressure cement slurry is jetted from the lower nozzle,mixing with the eroded soil. Therefore,the admixture can gel within several seconds. TDR has the possibility of wide applications for its instant solidification of soft sandy soil with much groundwater.
- twin jet-grouting /
- high pressure jet /
- accelerator /
- instant solidification

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参考文献(7)

[2] Gary T Brill,George K Burke,Alan R Ringen. A Ten-Year Perspective of Jet Grouting: Advancements in Applications and Technology[J]. Grouting and Ground Treatment. GeotechnicalSpecial Publication,ASCE,2003(120 I):218-235.

地基处理手册编写委员会.地基处理手册.2版[M].北京:中国建筑工业出版社,2000.

[3] Nakashima S,Nakanishi W. All-Around Type Reinfor cing and Consolidating Method in the Ground and Apparatus Thereof. U. S.Patent:5401121[P],1995(3):28.

[4] 牛虹.高压旋喷法的施工特性及设备[J].工业建筑,2002,32(10):52-55.

[5] 沈水龙,金龙县,洪振舜,等.用高压喷射双液浆体使软土地基快速凝固的设备.中国,200810033981.4[P].20080228.

[6] 沈水龙,王领,白云,等.水平旋喷施工中的一次性成孔与旋喷的施工设备与方法.中国,200810037410.8[P].20080515.

[7] Shibazaki M.State of Practice of Jet Grouting[J]. Grouting and Ground Treatment,Geotechnical Special Publication,ASCE,2003(120 I):198-217.

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