Baidu Encyclopedia says that it is good to put two axes in the ground when laying the floor, which has no effect on Feng Shui and is very helpful. Can be used to ward off evil spirits, so that you will not be disturbed by evil spirits.
Axe is a sharp weapon, but in geomantic omen, it also symbolizes the auspicious meaning of being blessed to get home, ward off evil spirits and smoothly turn around Gankun. For the record, the answer is for reference only. Please don't be blind and superstitious.