Summary:

Measuring the course of the gas network is possible using surveying. They make it possible to obtain sufficiently accurate results for the possibility of moni-toring the movements of the gas main, especially in the landslide areas. In planning the appropriate series frequency of testing, we can predict the displacement on what it is exposed, and in what period of time. Thanks to this professionals from the scope of strength of materials can calculate the deformation and strength of materials. This gives the possibility to obtain an approximate lifetime, exposed to damage, the gas main and take appropriate action before the damage becomes a fact. Damage to any gas main network extends as a threat to the environment. It also forms an obstruction to the existence of the population to which the transfer is interrupted, especially where, as in the case in question is a strategic network of supplying high pressure gas to Podhale.In the publication discusses the results of measurements and calculations for a line of high pressure gas pipeline DN 300 g in Borzęta, in the municipality Myślenice. Studied section of the pipeline is located within the newly established, clearly visible landslides. The object was measured by standard methods such as using the angular-linear networks. The whole of measurements was made in ref-erence to the groundwork points created by GPS. Points were dismissed from the test object and arranged so that their mutual measurement gave the opportunity to check the constancy of their position.The results of measurementsdisplacementsindicates that during double test of the pipeline network movement an interval of the month, the network has not been displaced, and the method gave reliable results. It is expected to repeat the geodetic measurements in subsequent periods of time.