相关实验视频

Updated: Sep 19, 2025

Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines

Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines

Published on: January 5, 2024

挖掘引发的道变形实时预测系统及其应用

Jing Wang¹, Dajiang Geng^2,3, Zongli Luo^2,3

¹School of Civil Engineering, Chongqing Industry Polytechnic College, Chongqing, China.

Science progress

|June 18, 2025

概括

本研究介绍了一种实时系统,用于预测基础坑挖掘期间的道变形. 该框架使用分析模型和神经网络准确预测地面运动,有助于城市道安全.

科学领域:

地质技术工程地质技术工程
道工程工程道工程
计算力学计算力学计算力学

背景情况:

基础坑挖掘对邻近道的稳定性产生重大影响.
准确的实时预测道变形对于城市基础设施安全至关重要.
现有的方法往往缺乏动态挖掘场景的精度.

研究的目的:

开发一个实时预测框架,用于道变形由基础坑挖掘诱导.
将分析解决方案与反向传播神经网络集成,以准确识别参数.
用现实世界道项目现场数据验证框架的性能.

主要方法:

基于双阶段卸载方法的分析解决方案和Mindlin的解决方案被采用.
道变形被模拟为双面弹性基础上的梁.
通过训练一个反向传播的神经网络,使用现场监测数据识别五个关键机械参数.

主要成果:

预测框架与道位移的现场测量有很强的一致性.
最大的相对误差为21.82% (垂直) 和1.95% (水平).
始终保持高预测准确度,除了在移位趋势逆转期间.

结论:

拟议的方法可靠地预测挖掘引起的道变形.
实时预测系统适用于城市道中的积极风险管理.
这一框架在复杂的地下建筑项目中提高了安全性和效率.

关键词:

在BP神经网络中,神经网络挖掘基石坑的基础挖掘工作现场预测预测预测道变形的情况

更多相关视频

Detection and Quantification of Tunneling Nanotubes Using 3D Volume View Images

Detection and Quantification of Tunneling Nanotubes Using 3D Volume View Images

Published on: August 31, 2022

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

相关概念视频

Dynamic Modulus of Elasticity of Concrete

Dynamic Modulus of Elasticity of Concrete

The dynamic modulus of elasticity assesses how a concrete structure deforms under impact or dynamic loads. It is typically higher than the static modulus of elasticity, measured under slow, steady loading conditions.
The sonic test is a common method to determine the dynamic modulus. In this test, a concrete beam, sized either 6 x 6 x 30 inches or 4 x 4 x 20 inches, is clamped at its center. Vibrations are initiated at one end of the beam by an electromagnetic exciter unit powered by...

Design Example: Maintaining Level of an Embankment

Design Example: Maintaining Level of an Embankment

Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...

Temperature Dependent Deformation

Temperature Dependent Deformation

In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...