Tony Waltham: publications on karst engineering

Limestone caves beneath viaduct foundations, and borehole investigations.

Pipes, caves and sinkholes in chalk karst in England, liquefaction of putty chalk, collapses over old mines at Jacqueline Close, Bury St Edmunds.

Classes of karst ground conditions defined by frequency of new sinkholes, potential cavity sizes, and extent of rockhead pinnacles

Cave collapse, roof breakdown, bed failure, stable arch, collapse sinkholes, tiankengs, chalk, gypsum, caprock sinkholes, salt, breccia pipes, geohazard, failure under loading, bearing capacity, safe cover thickness over caves.

Dropout sinkholes, soil cavities, sinkhole geohazard, induced by water input, induced by water table decline, drainage control, avoidable geohazard

Sinkhole prevention, remediation, grouting in karst, soil stabilisation, sinkhole repair, landfill, construction in sinkhole terrains, raft foundations, sinkhole flooding, geogrid, piles, testing, tunnels in karst.

Natural collapse, cave roof failure, imposed load, safe cover ratio, guideline, RMR

Subsidence sinkholes, induced in soil cover, rock collapse, Pennsylvania quarry de-watering, South Africa pinnacled rockhead, Guatemala dropout piping failure, Florida loading collapse, Turkey gypsum collapse, sinkhole geohazard.

Types of sinkhole, subsidence sinkholes, natural or induced.

Karst geohazard, sinkholes, drainage, induced sinkholes, pinnacled rockhead, unseen caves, safe cover, ground investigation, gypsum, salt, subsidence, sabkha.

Gospel accorded to sinkholes, karst geohazard, features of karst types, sinkhole hazard, subsidence sinkholes, sinkholes induced by drainage or water table decline, cave chamber collapse, collapse sinkholes, safe imposed loads, prediction.

Control the drainage: the gospel accorded to sinkholes; with introduction and vote of thanks.

Karst entry in Encyclopedia of Civil Engineering, sinkhole hazard, unseen cavities.