Tampers with directly acting explosion chambers

Full Title

Improving or preserving soil or rock, e.g. preserving permafrost soil > Improving by compacting > by tamping or vibrating, e.g. with auxiliary watering of the soil > Tampers with directly acting explosion chambers

Classification Context

Section:

FIXED CONSTRUCTIONS

Class:

HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING

Subclass:

FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES