Research On Remote Monitoring System Of Foundation Pit Displacement

With the completion of the primary stage of socialist modernization,The rapid and stable development of national economy accelerates the development of urbanization in China.Based on the basic national conditions of China’s large population base.How to use the relatively limited land resources to satisfy more people’s housing needs has become a difficult problem for the government and businessmen.The most direct and effective way to solve this problem is to build high-rise buildings.The high-rise building has higher requirements for excavation and monitoring of deep foundation pit.The excavation and monitoring of deep foundation pit is characterized by depth of high excavation,high difficulty of foundation pit support and high precision of excavation deformation monitoring.The current deep foundation pit monitoring generally adopts the whole station,the level instrument,and the axial force meter.The traditional artificial monitoring,affected by the weather,equipment,personnel,cannot accurately and punctually reflect the deformation of foundation pit during excavation.The remote monitoring,Compared to traditional detection methods,can avoid this shortcomings.Therefore,it is urgent to research on remote monitoring of deep foundation pit,as it can compensate for the lack of manual monitoring.Based on the concept of Internet of things,We constructed remote monitoring system of deep foundation pit,by using Zigbee wireless communication as the carrier of data.Firstly,we introduce the Zigbee technology and CC2530 chip to provide the necessary theoretical foundation for the hardware development of the system.Secondly,we establish the Zigbee communication network and test related performance.then,On the cloud server,the data packets are resolved according to the sensor communication protocol,And determine the validity of the data.At last,we use the database to store the data.Through specific project applications.Based on the actual monitoring data,the reliability of the sensor monitoring foundation pit displacement is verified.Some problems were repaired during the monitoring period.After the repair,the overallperformance of the detection system has been further improved.It can provide some useful references for the practical engineering application and in-depth study of deep foundation pit detection.