5 edition of Excavations at Mucking II found in the catalog.
Excavations at Mucking II
January 1993 by English Heritage .
Written in English
|The Physical Object|
|Number of Pages||329|
A competent person must determine how often rock bolts need to be tested to ensure that they meet the necessary torque, taking into consideration ground conditions, distance from vibration sources, and the specific bolt system in use. The excavations led by Margaret and Tom Jones on the Thames gravel terraces at Mucking, Essex, undertaken between and are legendary. Ventilation became a major problem, which was solved by the use of forced air from water-powered fans and a horizontal diaphragm at mid-height, forming an exhaust duct at top of the tunnel. Grant recipients are expected to contribute 20 percent of the total grant cost.
The history of the geographical area, geological formation, or past experience indicates that 10 percent or more of the lower explosive limit for methane or other flammable gases is likely to be encountered in such underground operations. OSHA and its allies work together to reach out to, educate, and lead the nation's employers and their employees in improving and advancing workplace safety and health. The long time-gap since completion of the excavations has allowed the authors the unprecedented opportunity to stand back from the density of site data and place the vast sum of Mucking evidence in the wider context of the archaeology of southern England throughout the major periods of occupation and activity. Finds included gold foil crosses, suggesting the occupant was Christian. The first major application of the shield-plus-compressed-air technique occurred in on the London subway with an foot bore, where it accomplished the unheard-of record of seven miles of tunneling without a single fatality.
Records of exposures to toxic substances must be kept for 30 years. To ensure effective communications are always available, communication systems must be tested upon initial entry of each shift to the underground and as often as necessary at a later time to ensure they are in working order. No penalties are proposed or citations issued for hazards identified by the consultant. Essex monarchy[ edit ] Essex emerged as a single kingdom during the 6th century. When 5 percent or more of the lower explosive limit for methane or other flammable gases is detected in an underground work area or in the air return, steps should be taken to increase ventilation air volume or otherwise control the gas concentration unless all requirements of operating under potentially gassy or gassy operations are met. A competent person must determine how often rock bolts need to be tested to ensure that they meet the necessary torque, taking into consideration ground conditions, distance from vibration sources, and the specific bolt system in use.
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If space limitations make this unfeasible, the material must be positioned as far as possible from the entrance with a fire resistant barrier that has at least a one-hour rating between the material and the opening.
Several specific requirements apply to the use of diesel fuel in underground construction operations, as follows: A surface level tank holding diesel fuel to be pumped to an underground storage site must have a maximum capacity no greater than the amount of fuel required to supply underground equipment for 24 hours.
Costs vary depending on whether you are resident in the UK, EU or elsewhere. Grants are awarded annually. If 10 percent or more of the lower explosive limit for methane gas or other flammable gases is detected near any welding, cutting, or other hot work, the work must be suspended until the concentration is reduced to below 10 percent of the lower explosive limit.
It was the first time an excavation had covered both a Saxon settlement and its associated cemetery. Spongy iron blooms were produced and had their impurities worked out by a process known as 'Mucking' . It is, however, also possible that the occupant was not royal, but simply a wealthy and powerful individual whose identity has gone unrecorded.
Any hydraulically-actuated underground machinery must use fire-resistant hydraulic fluids unless it is protected by a fire suppression system or multi-purpose fire extinguisher rated at least Excavations at Mucking II book and of sufficient capacity for the type and size of equipment involved.
A prime advantage is the avoidance of high costs and the risks of operating a shield under high air pressure, since work inside the sunken tube is at atmospheric pressure free air.
The excavation was unusual in that it continued through the winter, unlike most excavations which only took place in the summer. In addition, they resorted to compressed-air tunneling with shield and air locka technique almost unheard-of in mountain tunneling.
In addition, hoist operators must have a closed-circuit voice communication system connected to each landing station, with speaker microphones located so that the operator can communicate with individual stations while the hoist is in use. Tunnels and underground excavations.
The competent person tasked with such inspection responsibilities must be protected from loose ground by location, ground support, or equivalent means. While various publications have emerged over the intervening years, the death of both directors, insufficient funding, many organisational complications and the sheer volume of material evidence have severely delayed full publication of this extraordinary palimpsest landscape.
The excavation found more than 44, archaeological features. Inspections and load testing to percent of capacity must be performed at least annually and after any repairs or alterations affecting the structural integrity of the hoist.
When explosives are handled, only acceptable portable lighting equipment may be used within 50 feet of any underground heading. If less than 25 employees work underground, the employer must have one 5-person rescue team at the jobsite or within 30 minutes travel time.
Records of exposures to toxic substances must be kept for 30 years. Post-excavation analysis was hampered by the scale of the excavation and its finds and by the changing expectation of what constituted an excavation archive. Ventilation requirements Fresh air must be supplied to all underground work areas in sufficient amounts to prevent any dangerous or harmful accumulation of dusts, fumes, mists, vapors, or gases.
When performing work that is likely to produce dust, fumes, mists, vapors, or gases such as blasting or rock drillingthe linear velocity of air flow in the tunnel bore, shafts, and all other underground work areas must be at least 30 feet 9. Smoking is prohibited in all gassy operations; the employer must collect all possible sources of ignition matches, lighters, etc.
InGreathead made the subaqueous technique really practical by refinements and mechanization of the Brunel-Barlow shield and by adding compressed air pressure inside the tunnel to hold back the outside water pressure.
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The excavations led by Margaret and Tom Jones on the Thames gravel terraces at Mucking, Essex, undertaken between and are legendary. Mucking excavations: Volume 1. Prehistory, Context and Summary Christopher Evans. Grahame Appleby Book Description: The excavations led by Margaret and Tom Jones on the Thames gravel terraces at.
Mucking is an archaeological site near the village of Mucking in southern atlasbowling.com site contains remains dating from the Neolithic to the Middle Ages—a period of some 3, years—and the Bronze Age and Anglo-Saxon features are particularly notable.
Major excavations took place at the site between anddirected by Margaret Ursula Jones. Location: Mucking, Essex, England, United Kingdom.
Dec 14, · The Anglo-Saxon cemeteries at Mucking, Essex, represent the burials of over individuals from the 5th to early 7th centuries. This long-awaited report includes detailed illustrated catalogues in Part i, and comprehensive analysis and discussion of the burials, their relation to the excavated settlement evidence and wider context, in Part ii.
57 Hamerow, Excavations at Mucking, ii, 70–1; Sue Hirst and Dido Clark, Excavations at Mucking, iii, The Anglo-Saxon Cemeteries (London, ), 15, 70–1,90 InDomesday Book tells us specifically that the woodland and ironworking site in Weldon belonged to the king: Cited by: