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SPEPC TECHNOLOGY
Solution
Residential Community Security Monitoring and Early Warning Solution
Background Introduction
A retaining wall is a structure designed to support embankment fill or slope masses and to prevent deformation and instability of the fill or soil mass. Based on the different mechanisms that ensure stability, retaining walls are classified into gravity-type, anchored-type, and thin-walled types, with gravity-type retaining walls being the most widely used form today.
A gravity retaining wall is a type of retaining wall that relies on the self-weight of the wall itself to resist lateral earth pressures. It can be constructed using masonry made of rubble, dressed stone, or precast concrete units, or by cast-in-place reinforced concrete or plain concrete. Such walls are typically no more than 5 to 6 meters in height and most commonly feature a simple trapezoidal cross-sectional shape.
Gravity retaining walls have a simple structure, are easy to construct, can utilize locally available materials, and exhibit strong adaptability; however, they require large cross-sectional dimensions and impose stringent demands on the bearing capacity of the foundation. If the wall foundation is embedded too shallowly or drainage behind the wall is inadequate, coupled with prolonged service life and insufficient maintenance, the wall is prone to various forms of distress, including mortar joint spalling, cracking, surface damage, deterioration of settlement joints and expansion joints, sliding, settlement, vertical cracking of the wall body, and transverse fractures, all of which adversely affect the retaining function.
When retaining walls are in normal service, severe deterioration can even pose a threat to the lives and property of nearby residents. Therefore, automated monitoring of retaining-wall distress conditions and remediation of severely damaged walls are crucial public-interest projects that benefit the community.
Solution Overview
The development of the automated monitoring and early-warning system is guided by the principles of cost-effectiveness, real-time performance, and accuracy. This is achieved by installing automated monitoring equipment and deploying a software management platform to conduct comprehensive monitoring of the soil within residential communities.
The system is primarily divided into two components: terminal monitoring devices and a backend data management platform.
The system is built on an IoT architecture, comprising a 4G network, an IoT platform, a structural deformation safety monitoring and management system, and user terminals. Integrated inclinometers are installed on the retaining wall to continuously collect real-time data on structural changes at the installation location. This monitoring data is transmitted wirelessly to a server, where it is processed by the monitoring and early-warning management platform. The platform enables users to view real-time data and trend analyses of the retaining wall’s angular structural condition, providing continuous, dynamic monitoring of the structure’s health. When slow deformation occurs in the retaining-wall area and the change in condition reaches the preset alert threshold, the management platform immediately triggers an alarm and simultaneously sends an alert SMS message to relevant personnel.
FEATURES OF THE SOLUTION
Condition Monitoring
Early Warning
Wireless Networking
Remote control
Platform Visualization
System Architecture
The system is divided into three layers: the perception layer, the network layer, and the data application layer.
Perception Layer: Terminal sensing devices are installed in the defect-prone areas of the retaining wall. An integrated inclinometer is used to monitor changes in the soil mass’s orientation and displacement, a crack meter is employed to track wall displacement, and deep-bore displacement sensors are deployed to monitor subsurface soil movements, enabling automated, real-time acquisition of wall-condition data.
Network Layer: The network layer connects via a 4G wireless communication module and uploads data to the cloud platform.
Data Application Layer: The cloud service platform system performs real-time, dynamic analysis of the collected monitoring data and displays status information through a user interface. When the collected data exceeds the threshold set by the system, the system automatically triggers alarms for monitored areas exhibiting anomalies and supports external dissemination of alert information, including platform-based alerts, voice announcements via warning sirens, and SMS notifications.
System Platform
By deploying automated terminal monitoring devices, the system acquires real-time data on monitored targets. The backend data management platform then performs intelligent analysis and disaster prediction on the collected data, automatically issuing disaster warnings and forecasts to relevant personnel. This enables 24-hour dynamic, all-round monitoring, allowing continuous tracking of retaining wall deformation at any time and from any location, thereby providing a scientific basis for early warning and preventive measures against retaining wall deterioration.
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RECOMMENDED PRODUCTS
Integrated Soil Moisture Monitor
Integrated Tilt (Collapse) Monitor
Debris Flow Line-Disconnection Monitor
Array-type displacement sensor
Contact Information
6th Floor, Building 10, Entrepreneurship Industrial Park, Chaoyang Township, Qixing District, Guilin City, Guangxi Zhuang Autonomous Region
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