Water enclosure maintenance is a kind of highway concrete maintenance technology. After the concrete pavement is laid, in order to prevent the water from evaporating too fast, causing concrete cracks and damaging its service life, the maintenance method is adopted ... Simply put, the pavement is surrounded by soil stalks, and the middle drainage plays the role of moisture preservation and heat preservation. However, this method has great limitations and can only be used when the road surface is flat, so other means must be adopted when encountering slopes, so the method of covering maintenance is generally adopted.