深基坑开挖边坡稳定性监测实施技术
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摘要
明挖深基坑是目前满足船闸主体施工条件比较经济简便的一种施工方法,而开挖成型后的基坑边坡失稳是施工过程中应当重视的一项安全隐患,采用准确、及时、可靠的边坡稳定监测实施技术是保障安全施工环境的前提条件。结合大源渡船闸深基坑开挖工程规模及形状特征,总结深基坑开挖边坡变形监测实施技术要求及方法,将数据成果绘制成变形曲线,客观形象反映出边坡变形规律及最大值。
Open excavation of deep foundation pit is a relatively economical and simple construction method to meet the main construction conditions of ship lock at present, and the instability of foundation pit slope after excavation is a hidden danger of safety that should be paid attention to in the construction process. Therefore,the adoption of accurate,timely and reliable slope stability monitoring and implementation technology is the prerequisite to guarantee the safe construction environment. Based on the scale and shape characteristics of deep foundation pit excavation project of Dayuandu shiplock,the technical requirements and methods of slope deformation monitoring for deep foundation pit excavation are summarized.
Open excavation of deep foundation pit is a relatively economical and simple construction method to meet the main construction conditions of ship lock at present, and the instability of foundation pit slope after excavation is a hidden danger of safety that should be paid attention to in the construction process. Therefore,the adoption of accurate,timely and reliable slope stability monitoring and implementation technology is the prerequisite to guarantee the safe construction environment. Based on the scale and shape characteristics of deep foundation pit excavation project of Dayuandu shiplock,the technical requirements and methods of slope deformation monitoring for deep foundation pit excavation are summarized.
引文
[1]湖南省交通规划勘察设计院.湘江二级航道二期工程两阶段施工图设计[R].长沙:湖南省交通规划勘察设计院,2017.
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[3]中交天津航道局有限公司,中交天津港航勘察设计研究院有限公司.水运工程测量规范:JTS 131—2012[S].北京:人民交通出版社,2014.
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[2]交通部天津水运工程科学研究所,天津港湾工程研究所.水运工程水工建筑物原型观测技术规范:JTJ 218—2005[S].北京:人民交通出版社,2006.
[3]中交天津航道局有限公司,中交天津港航勘察设计研究院有限公司.水运工程测量规范:JTS 131—2012[S].北京:人民交通出版社,2014.
[4]国家测绘局测绘标准化研究所.国家一、二等水准测量规范:GB/T 12897—2006[S].北京:中国标准出版社,2006.