In tunnels and underground excavations: Shaft raising
…useful in simplifying the so-called glory-hole method, in which the main shaft is sunk by blasting; the muck is then dumped in the central glory hole, previously constructed by a raise borer. The example is based on the construction of a 133-foot-diameter surge shaft above the Angeles penstock tunnel near…
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History provides a chronological, statistical, and cultural record of the events, people, and movements that have made an impact on humankind and the world at large throughout the ages.","image":{"id":0,"url":"/05/84505-050-8BB58BE6/cave-art-Ennedi-Plateau-Chad.jpg","altText":"World History","credit":null,"width":null,"height":null,"fullUrl":"https://cdn.britannica.com/05/84505-050-8BB58BE6/cave-art-Ennedi-Plateau-Chad.jpg"}},"typeDisplayName":"Demystified"}]},"byline":null,"citationInfo":null,"websites":null,"freeTopicReason":"TOPIC_IS_INDEX_PAGE","articleSchemaMarkup":{"keywords":"glory-hole method","wordcount":0,"url":"https://www.britannica.com/technology/glory-hole-method","description":"Other articles where glory-hole method is discussed: tunnels and underground excavations: Shaft raising: …useful in simplifying the so-called glory-hole method, in which the main shaft is sunk by blasting; the muck is then dumped in the central glory hole, previously constructed by a raise borer. The example is based on the construction of a 133-foot-diameter surge shaft above the Angeles penstock tunnel near…","publisher":{"name":"Encyclopedia Britannica","@type":"Organization","logo":{"url":"https://corporate.britannica.com/wp-content/themes/eb-corporate/_img/logo.png","@type":"ImageObject"}},"@context":"https://schema.org","@type":"article"},"studentArticle":false,"showHeader":true,"comingFromSameArticle":false,"initialLoad":true}
glory-hole method
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excavation process
Learn about this topic in these articles:
underground excavation
In tunnels and underground excavations: Shaft raising…useful in simplifying the so-called glory-hole method, in which the main shaft is sunk by blasting; the muck is then dumped in the central glory hole, previously constructed by a raise borer. The example is based on the construction of a 133-foot-diameter surge shaft above the Angeles penstock tunnel near…
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