Angular rocks resist the movement induced by gravity and frost heaving.
From the dispatch.com
There still is a chance of frost heaving in early April.
From the dailyherald.com
A layer of mulch will insulate the soil to keep it frozen and help prevent additional frost heaving.
From the dailyherald.com
Too shallow and you set yourself up for frost-heaving.
From the timesunion.com
Different soil types are more susceptible to frost heaving.
From the orlandosentinel.com
Applying a layer of mulch to insulate and even out the soil temperature will help prevent additional frost heaving.
From the dailyherald.com
A foundation must bear the structural loads imposed upon it and allow proper drainage of ground water to prevent expansion or weakening of soils and frost heaving.
From the en.wikipedia.org
A blanket of evergreen boughs, straw or marsh hay applied after the ground freezes will prevent frost heaving and early sprouting, and increase the chance of winter survival for bulbs and perennials.
From the omaha.com
Winter is a notorious time for water main breaks due to constant heaving caused by frost.