高压旋喷桩技术在举水河穿越施工中的应用
Application of High Pressure Jet Grouting Piles in Jushuihe River Crossing Construction
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- DOI:
- 作者:
- 马点飞, 屠言辉, 封海涛, 徐树枫
MA Dian-fei, TU Yan-hui, FENG Hai-tao
- 作者单位:
- 中国石油天然气管道局穿越公司, 河北 廊坊 065001
China Petroleum Pipeline Crossing Company, Langfang 065001, China
- 关键词:
- 高压旋喷桩;水平定向钻;软弱地层;施工技术
high pressure jet grouting pile;HDD;soft stratum;construction
- 摘要:
- 湖北省武汉市举水河定向钻穿越长度为957.5m,管道直径1219mm,穿越曲线中间位于硬岩地层,两端为软弱地层,造成在地层界面处钻杆断裂和回拖失败。为此采用了加钢套管隔离软地层和高压旋喷桩固化软地层的方法进行地层改良,使回拖作业一次成功。文章着重介绍了该工程采用钢套管加高压旋喷桩技术的施工工艺和工程实施的具体做法。
The Jushuihe River directional crossing project is located in Wuhan City, having the pipeline crossing length of 957.5 m with the pipeline diameter of 1 219 mm. The crossing curve passes through the rock stratum in the middle section and the soft stratums on both end sections of the crossing curve, which causes the drilling rod broken and towback operation failed at one interface of rock stratum and soft soil stratum. Then the method of using steel casing to insulate soft stratum and high pressure jet grouting piles to solidify soft stratum is adopted, which enables the towback operation to be successful once. The construction process and implementation practice of using this method is illustrated in this paper.2013,1(1): 33-35 收稿日期:2012-1-4DOI:10.3969/j.issn.1001-2206.2013.01.010作者简介:马点飞(1981-),男,安徽颍上人,工程师,2004 年毕业于中国石油大学(华东)工业设计专业,现从事水平定向钻穿越施工工作。参考文献:
[1] 屠言辉,苗冀清,徐树枫. 水平定向钻穿越施工中的对接技术[J].石油工程建设,2011,(5):26-30.
[2] 李国民,刘宝林,方雪松. 松散砂砾石层非开挖水平导向钻进成孔方法的探讨[J]. 非开挖技术,2005,(2-3):41-42.
[3] 李山. 水平定向钻进地层适应性的评价方法[J]. 非开挖技术,2008,(1):39-44.
