Due to the complexity of mechanism of CAT reinforced earth retaining wall

the most directly and reliable method is prototype measurement

which can help us to learn the mechanical performance. According to the field measurements of the CAT reinforced earth retaining wall which is built closely to a building on the Changsha to Xiangtan expressway

the monitoring plan and the relevant results are introduced. Monitoring results show that the distribution of the maximum tension strain of the reinforcing strips and the lateral earth pressures on the earth retaining wall are satisfied with the design requirement. It is also proved that the prototype measurement method is reasonable

the structure is stable and reliable

and the sensors can complete the relevant monitoring task effectively.