基于BP神经网络的基坑喷锚网支护变形分析

喷锚网作为一种新型的基坑支护技术在基坑施工中已大量采用，但基坑塌滑等安全事故也时有发生。文中运用快速拉格朗日法对其进行了分析研究。基于BP神经网络，通过实际工程对喷锚支护技术进行了数值计算，得到了设计喷锚支护方案下基坑变形的分布规律，并与现场监测进行了比较，结果一致。通过数值分析表明，喷描网技术在严格控制基坑变形、保护环境方面具有明显的优越性，值得推广。

Analysis on Deformation of Foundation Pit with Shotcrete Rockbolt Mesh Support based on BP Neural Network

Shotcrete rockbolt mesh as a new type technology for foundation pit supporting has been vastly appliedin foundation pit construction,but foundation pit collapse and other safety accidents have also occurred frequently.This paper studies it with Lagrange method.Based on BP neural network,it carries out numerical calculation for shotcrete bolting technology through practical engineering,and gets the distribution rule of foundation pit deformation under designed shotcrete bolting program,which is in conformance with site measurement through comparison.It is indicated through numerical analysis that shotcrete rockbolt mesh technology has obvious advantages in strict control of foundation pit deformation and environmental protection,and it is deserved to be popularized in application.