At present, SmartSolo Scientific engineering geophysical exploration series products have been used to carry out a number of urban rail transit microseismic survey projects, and such projects are still in high popularity. Compared with other engineering geophysical exploration methods, it has the following four advantages:

First, no damage to structures or underground pipe network;

Second, not restricted by the site, strong anti-interference ability, data distortion;

Third, high construction efficiency, low cost;

Fourth, green environmental protection.

Dynamic monitoring of hysteresis settlement: "Hysteresis Settlement Monitoring of Runway and apron of an Airport in Chengdu"

Shield construction under the airport may cause delamination voids between the airport pavement and the subway tunnel. The main task is to investigate whether there are hidden voids under the airport runway and determine the specific location and size of underground hidden voids.

Lag settlement monitoring: After the passage of the shield, the formation stability and local changes are monitored to prevent formation delamination and cavity formation caused by sand loss.

Results obtained after the implementation of detection at the airport: