摘要
不同沉降高度下的高压旋喷桩渗透监测效果有较大差异,沉降高度越大,监测精度越差。为保证沉降高度较大时的渗透监测效果,设置渗透方程,结合沉降高度,建立高压旋喷桩渗透模型,设计渗透监测算法。对比不同沉降高度下3种监测方法的渗透系数,当沉降高度大于5m后,其他两种对比方法的监测结果均超出标准值,可见该方法能够在较大沉降高度下保证监测精度。
The seepage monitoring effect of high-pressure jet grouting pile under different settlement heights is greatly different,and the greater the settlement height,the worse the monitoring accuracy.In order to ensure the seepage monitoring effect when the settlement height is high,the seepage monitoring method of high-pressure jet grouting pile in deep silt of sluice cofferdam is designed.Set the seepage equation,establish the seepage model of high-pressure jet grouting pile combined with the settlement height,and design the seepage monitoring algorithm.In the experiment,the permeability coefficients of the three monitoring methods under different settlement heights are compared.When the settlement height is more than 5m,the monitoring results of the other two comparison methods all exceed the standard values,which shows that this method can ensure the monitoring accuracy under a larger settlement height.
作者
吴鹏飞
胡海霞
王坤雪
WU Peng-fei;HU Hai-xia;WANG Kun-xue(Zhejiang Guangchuan Engineeing Consultation Co.Ltd.,Hangzhou 317399,China;Zhejiang Jiangneng Construction Co.Ltd.,Hangzhou 317000,China)
出处
《水利科技与经济》
2023年第4期54-58,共5页
Water Conservancy Science and Technology and Economy
关键词
水闸围堰
深层粉砂土
高压旋喷桩
渗透方程
监测算法
沉降高度
sluice cofferdam
deep silty sand
high pressure jet grouting pile
infiltration equation
monitoring algorithm
settlement height
