In field warfare they are often log, sandbag or gabion type construction. Other sections are constrained by rock filled gabion baskets. In the Indian Army, it is given the name "knife gabion". This included replenishment of sand, construction of gabion walls, and construction of groynes. Besides using mortar, stones can also be put in a gabion. They piled the excavated dirt to make a protective wall or gabion. The basement levels of the museum face the sunken garden and gabion walls. The combined trench depth and gabion height might be . Some gabion manufacturers guarantee a structural consistency of 50 years. There area also areas with gabion baskets, wing walls, and concrete bridge piers.