Summary of geotechnical engineering survey work

1, put the hole

The project has a total of 216 holes. The construction period is tight, and the number of holes is the characteristic of the project. When you put the hole, you should first familiarize yourself with the drawings, understand and master the general position of each hole on the drawing, and remember the surrounding environment characteristics of each hole when you put the hole. , laying a good foundation for the next drilling work.

2, drilling machine layout

Due to the wide site, the number of holes, the tight tasks, and the large number of rigs, it is necessary to select the drilling direction of the rig according to the principle of “enhance the rig to move the distance and drill more”, so that it can save labor and speed up. project progress.

3. Drilling

There are eight drilling rigs in this project, but there are two of us. In this case, it is impossible to catalog each rig at the same time. This requires the rigmaster to write on the core after a return. The number of meters, but since the rig is paid in meters, almost all captains write a few meters on the meter without anyone watching. This brings a lot of unnecessary trouble to the cataloger. Under such circumstances, the cataloger must not only identify the actual number of meters of the soil, but also strengthen the education of the captain. For example, a 25-meter drill hole allows them to hit 21-22 meters to give them a certain amount of work, but must ensure the accuracy of each return meter.

4, identify soil samples

Due to the small number of rigs, there is no guarantee that all drill holes can be catalogued in time. Some soil samples have been dehydrated for a long time at the time of cataloging. It is very difficult to distinguish between silt and powder. Step on the soil sample and observe the overall toughness of the soil sample. Under normal circumstances, the overall toughness of the powder is higher than that of the soil.

5, security

This is an old-fashioned topic. When drilling, you must ensure that everyone wears a helmet. In particular, the final stage of each project is the stage of the accident. It is important to remind the drillers not to rush. Safety is the most important.

Postscript: Every drilling member is an ordinary peasant who has to go to a place hundreds of kilometers away from home to live. The life here is hard and unimaginable. They have to live in tents built in the wild. The so-called bed is a piece of wood. Every day, work is to deal with the soil. Whether they are in the hot summer or the cold winter, they need to work in the wild. Every penny is their own hard-earned money. Drilling work is a hard job, drilling work is a dangerous job, pay tribute to them, great laborers!

Department work summary