The body of the article:
Subgrade settlement plate is an important monitoring equipment in highway construction, which is used to monitor the settlement deformation of subgrade in different construction stages and operation periods. This article will introduce the structure and use principle of subgrade settlement plate in detail.
First, the structure of the subgrade settlement plate.
The subgrade settlement plate is mainly composed of a settlement plate, a measuring rod, a casing, a casing protective cover, a bottom cover, a probe and a connector. Among them, the settling plate is the main stressed component, usually made of steel or concrete;The measuring rod is used to connect the settling plate to the casing and is usually made of steel;The casing is mainly used to protect the measuring rod and settling plate, and is usually made of PVC;The protective cover and bottom cover of the casing are used to protect the casing from external influencesThe probe can be used to measure the amount of settlement in the settling plate;The connector is used to connect the various components to ensure the stability of the structure.
Second, the principle of use of subgrade settlement plate.
The principle of use of subgrade settlement plate is mainly to monitor the settlement deformation of subgrade by measuring the settlement amount of the subgrade settling plate. Specifically, settlement plates are set at different positions of the subgrade, the settlement amount of the settlement plate is measured periodically, and the data is recorded, and by analyzing these data, the settlement deformation of the subgrade during different construction stages and operation can be understood.
1.Install the settling plate.
Before the construction of the roadbed, according to the design requirements, select the appropriate position to install the settlement plate. During installation, it is necessary to ensure that the settlement plate is tightly connected to the surface of the roadbed, and at the same time, care should be taken to protect the measuring rod and casing from damage.
2.Measure the amount of sedimentation at regular intervals.
During the construction of the subgrade and during the operation, the settlement plate is measured regularly and the settlement data is recorded. When measuring, you need to pay attention to the following:
1) Use appropriate measuring instruments and tools to ensure measurement accuracy;
2) Keep the probe clean and flat during measurement to avoid errors
3) At each measurement, it is necessary to compare the data of the previous measurement with the previous measurement to calculate the amount of settlement;
4) According to the measurement results, adjust the construction plan or take corresponding measures in time to prevent excessive settlement deformation of the roadbed.
3.Analyze the measurement data.
By collating and analyzing the measured settlement data, it is possible to understand the settlement deformation of the subgrade in different construction stages and operation periods. For example, you can draw a graph of the change of settlement over time, and analyze the trend of the curve, so as to judge the stability and safety of the roadbed.
4.Maintenance and management.
During the construction of the subgrade and during the operation, the subgrade settlement plate needs to be inspected and maintained regularly to ensure its normal operation and long-term stability. At the same time, it is also necessary to manage and maintain other related equipment to ensure the accuracy and reliability of monitoring data.
In short, the subgrade settlement plate is an important monitoring equipment in highway construction, and its role and importance in highway construction can be better understood through the introduction of the structure and use principle of the subgrade settlement plate. In practical applications, it is necessary to install and measure in strict accordance with the design requirements, and at the same time do a good job of daily maintenance and management to ensure the accuracy and reliability of monitoring data.