Pumping 3 : The ejection of foundation material, either wet or dry, through joints or cracks or along edges of rigid slabs, due to vertical movements of the slab under traffic
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}