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The first successful tunnelling shield was developed by Sir Marc Isambard Brunel to excavate the Thames Tunnel in 1825. However, this was only the invention of the shield concept and did not involve the construction of a complete tunnel boring machine, the digging still having to be accomplished by the then standard excavation methods.
A post hole clam-shell digger, also called post hole pincer or simply post hole digger, is a tool consisting of two articulated shovel-like blades, forming an incomplete hollow cylinder about a foot long and a few inches wide, with two long handles that can put the blades in an "open" (parallel) position or a "closed" (convergent) position.
Backhoe Loader Cat 420E A JCB 3CX backhoe loader A JCB backhoe loader performing work in India. A backhoe loader, also called a loader backhoe, loader excavator, tractor excavator, [1] digger or colloquially shortened to backhoe within the industry, is a heavy equipment vehicle that consists of a tractor-like unit fitted with a loader-style shovel/bucket on the front and a backhoe on the back.
NorthTec was founded as Northland Community College. This opened with its own campus in Raumanga Valley, Whangārei , on 1 April 1978. As such, its mission was largely to offer trade and community education.
An excavator in Ourense, Spain Hydraulic excavator in action. Excavators are heavy construction equipment primarily consisting of a boom, dipper (or stick), bucket, and cab on a rotating platform known as the "house" [1].
Name Years Area Authority Decile Roll Website MOE Ahipara School: 1–8: Ahipara: State: 3: 212: 1000: Awanui School: 1–6: Awanui: State: 2: 42 — 1004: Bay of Islands College
A wheel trencher in South Africa Stealth Communications' Microtrenching in Chinatown (Manhattan), for installing fiber optic cables in microducts.. A trencher is a piece of construction equipment used to dig trenches, especially for laying pipes or electrical cables, for installing drainage, or in preparation for trench warfare.
Pompallier College is named after Bishop Jean Baptiste Pompallier who led the first group of Catholic Missionaries to New Zealand, arriving in the Hokianga with Fr Servant and Br Michel a Marist Priest and Brother in 1838. He was the first Catholic Bishop of New Zealand; Bishop Pompallier of the Diocese of Auckland. [4]