多个固定倾角计与连续板的断面沉降仪
Section Settlement Gauge with Multi-inclinometers Fixed on Concatenated Plates
浏览(2352) 下载(1)
- DOI:
- 作者:
- 苗中海, 高志义, 阚卫明, 叶国良
MIAO Zhong-hai, GAO Zhi-yi, KAN Wei-ming, YE Guo-liang
- 作者单位:
- 中交天津港湾工程研究院有限公司, 天津 300222
Tianjin Port Engineering Institute Co.Ltd., Tianjin 300222, China
- 关键词:
- 观测仪器;断面沉降;倾角计;连续板
observation instrument;section settlement;inclinometer;concatenated plates
- 摘要:
- 在长江口深水航道治理工程中,为进行地基土的抗软化加固试验,需要寻找一种合适的地基沉降监测方法。文章在分析了现有监测方法的基础上,提出将多个倾角计固定在铰接的连续沉降板上,埋设在构筑物基础之下的泥面上,以监测地基断面沉降的方法。实际工程应用表明,监测数据规律性很好,长期稳定性强,精度高(可达0.001mm);不需设立基点,且大大降低了对施工的干扰,为远离岸线的水下断面地基沉降自动监测,开创了一种新的沉降观测方法。
In the deep water channel treatment project at the Yangtse River Estuary,a suitable foundation settlement observation way is required to conduct solidifying test of soft foundation. Based on analyzing current monitoring methods,this paper brings forward a way for monitoring foundation section settlement that is to fix multi-inclinometers on hinged concatenated plates and bury them on the foundation.The application of this measuring way in practical projects shows that the measured data have good regularity,long stability and high precision (up to 0.001mm),and the base point is not needed setting up and the disturbance on construction work is greatly reduced.This technique creates a new settlement observation way for automatically monitoring offshore foundation settlement.2008,1(1): 49-52 收稿日期：2007-8-2分类号：U617基金项目：交通部部级研究与开发资助项目 (2003-329-C01-010)作者简介：苗中海(1956-),男,天津市人,高级工程师,主要从事岩土工程的试验研究、设计和管理工作.参考文献：
[1] 范期锦,李乃扬.长江口二期工程北导堤局部破坏的原因及对策[J].中国港湾建设,2004,129(2):1-8.
[2] 高志义,李美美,翟亚军.饱和黏土动强度变化规律及其试验方法的探讨[J].勘察科学技术,1985,13(2):19-25.
[3] 钱家欢,殷宗泽.土工原理与计算[M].北京:水利电力出版社,1996.
[4] 高志义,阚卫明,高潮,等.地基沉降的反馈计算方法及应用[J].中国港湾建设,2005,134(1):9-12.