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Uttarakhand Tunnel Rescue
On 12 November 2023, a section of the Silkyara Bend–Barkot tunnel, planned to connect National Highway 134 in the Uttarkashi district of Uttarakhand, India, caved in while under construction. The collapse occurred at around 05:30 IST and trapped 41 workers inside the tunnel. Rescue operations were immediately launched, with a number of government agencies involved, including the National Disaster Response Force, the State Disaster Response Force, Uttarakhand Police, engineers from the Indian Army Corps of Engineers, and Project Shivalik of the Border Roads Organisation. Numerous private resources were utilized in the rescue efforts as well, including Australian tunnelling experts Arnold Dix and Chris Cooper. Though the initial attempts at a rescue were complicated because of the kinds of debris created in the collapse, the government brought in "rat-hole" miners who were able to use manual mining methods to get an access pipe to the trapped workers. All 41 workers were r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a Fracture (geology), planar fracture or discontinuity in a volume of Rock (geology), rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust (geology), crust result from the action of Plate tectonics, plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction, subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the Plane (geometry), plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geological maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil And Natural Gas Corporation
The Oil and Natural Gas Corporation Limited (ONGC) is an Indian central public sector undertaking which is the largest government-owned oil and gas explorer and producer in the country. It accounts for around 70 percent of India's domestic production of crude oil and around 84 percent of natural gas. Headquartered in Delhi, ONGC is under the ownership of the Government of India and administration of Ministry of Petroleum and Natural Gas. It was founded on 14 August 1956 by the Government of India. In November 2010, the Government of India conferred the '' Maharatna'' status to ONGC. In a survey by the Government of India for fiscal year 2019–20, it was ranked as the largest profit making Central Public Sector Undertaking (PSU) in India. It is ranked 5th among the Top 250 Global Energy Companies by Platts. ONGC is vertically integrated across the entire oil and gas industry. It is involved in exploring for and exploiting hydrocarbons in 26 sedimentary basins of India, own ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
THDC India Limited
THDC India Limited (formerly Tehri Hydro Development Corporation Limited) is under the ownership of National Thermal Power Corporation Limited, Ministry of Power, Government of India. It was incorporated in July 1988 to develop, operate and maintain the Tehri Hydro Power Complex and other Hydro Projects. THDC India Limited is a Mini Ratna Category-I Enterprise. The current CMD of the corporation is R.K Vishnoi. At present the company has four power plants in operation namely Tehri Dam (1000 MW), Koteshwar Dam (400 MW), 50 MW Wind project in Patan (Gujarat) and 63 MW Wind project in Dwarka (Gujarat). In addition, more than 10 projects are under various stages of construction. Tehri PSP (1000 MW) and Vishnugad-Pipalkoti HEP (444 MW) are in advance stage and are expected to commission by 2024. THDCIL has also ventured into thermal power generation with its 1320 MW Thermal Power project coming up near Dussehera village which is near to Khurja, District Bulandshahr, Uttar Pradesh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rail Vikas Nigam
Rail Vikas Nigam Limited (RVNL) is an Indian central Public Sector Undertaking (PSU) which works as the construction arm of the Ministry of Railways for project implementation and transportation infrastructure development. It was incorporated in 2003 to meet the country's surging infrastructural requirements and to implement projects on a fast-track basis as well as for creating a Railway equipment construction company. RVNL is a ''Navratna'' PSU in India under the administrative control of the Ministry of Railways, Government of India. The organization undertakes project execution from concept to commissioning and creates project-specific SPVs. RVNL’s mandate includes the mobilization of extra-budgetary resources (EBRs) through a mix of equity and debts via these SPVs. History Rail Vikas Nigam Limited (RVNL) was established to implement the National Rail Vikas Yojana (NRVY), a project to develop railway infrastructure in India. The NRVY was announced by Prime Minister At ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SJVN
SJVN, formerly known as Satluj Jal Vidyut Nigam, is an Indian public sector undertaking in the Navratna Category and involved in hydroelectric power generation and transmission. It was incorporated in 1988 as Nathpa Jhakri Power Corporation, a joint venture between the Government of India and the Government of Himachal Pradesh. The company has a total operating hydropower capacity of 1972 MW through its three hydropower plants—Nathpa Jhakri Dam, Nathpa Jhakri and Rampur, Himachal Pradesh, Rampur and Naitwar Mori, Uttarakhand, Naitwar Mori. In addition, it has an installed capacity of 97.6 MW of wind power and 396.9 MW of solar power. Beginning with a single project and single state operation, India’s largest 1500 MW Nathpa Jhakri Dam, Nathpa Jhakri Hydro Power Station in Himachal Pradesh, the company has commissioned twelve generation projects totaling 2466.5 MW of installed capacity and 86 km 400 KV Transmission Line. SJVN is presently implementing or operating power projec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hillock
A hillock or knoll is a small hill,The Free Dictionary "hillock" entry, retrieved December 18, 2007 usually separated from a larger group of s such as a range. Hillocks are similar in their distribution and size to small mesas or s. This particular formation occurs often in and |
Thailand
Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spans . Thailand Template:Borders of Thailand, is bordered to the northwest by Myanmar, to the northeast and east by Laos, to the southeast by Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the southwest by the Andaman Sea; it also shares maritime borders with Vietnam to the southeast and Indonesia and India to the southwest. Bangkok is the state capital and List of municipalities in Thailand#Largest cities by urban population, largest city. Tai peoples, Thai peoples migrated from southwestern China to mainland Southeast Asia from the 6th to 11th centuries. Greater India, Indianised kingdoms such as the Mon kingdoms, Mon, Khmer Empire, and Monarchies of Malaysia, Malay states ruled the region, competing with Thai states s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tham Luang Cave Rescue
In June/July 2018, a junior association football team became trapped for fifteen days in Tham Luang Nang Non, a cave system in Chiang Rai province, northern Thailand, but were ultimately rescued. Twelve members of the team, aged 11 to 16, and their 25-year-old assistant coach entered the cave on 23 June after a practice session. Shortly after they entered, heavy rainfall began and partially flooded the cave system, blocking their way out and trapping them deep within. Efforts to locate the group were hampered by rising water levels and strong currents, and the team were out of contact with the outside world for more than a week. The cave rescue effort expanded into a massive operation amid intense worldwide public interest and involved international rescue teams. On 2 July, after advancing through narrow passages and muddy waters, British divers John Volanthen and Rick Stanton found the group alive on an elevated rock about from the cave mouth. Rescue organisers d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllite
Phyllite ( ) is a type of foliation (geology), foliated metamorphic rock formed from slate that is further metamorphosed so that very fine grained white mica achieves a preferred orientation.Stephen Marshak ''Essentials of Geology'', 3rd ed. It is primarily composed of quartz, sericite mica, and chlorite group, chlorite. Phyllite has fine-grained mica flakes, whereas slate has extremely fine mica flakes, and schist has large mica flakes, all mica flakes of which have achieved a preferred orientation. Among foliated metamorphic rocks, it represents a gradation in the degree of metamorphism between slate and schist. The minute crystals of graphite, sericite, or chlorite, or the translucent fine-grained white mica, impart a silky, sometimes golden sheen to the surfaces of cleavage (geology), cleavage, called "phyllitic luster". The word comes from the Greek ''phyllon'', meaning "leaf". The protolith (or parent rock) for phyllite is shale or pelite; or slate, which in turn came ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltstone
Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility. Although its permeability and porosity is relatively low, siltstone is sometimes a tight gas reservoir rock, an unconventional reservoir for natural gas that requires hydraulic fracturing for economic gas production. Siltstone was prized in ancient Egypt for manufacturing statuary and cosmetic palettes. The siltstone quarried at Wadi Hammamat was a hard, fine-grained siltstone that resisted flaking and was almost ideal for such uses. Description There is not complete agreement on the definition of siltstone. One definition is that siltstone is mudrock (clastic sedimentary rock containing at least 50% clay and silt) in which at least 2/3 of the clay and silt fraction is composed of silt-sized particles. Silt is defined as grains 2–62 μm in diam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metasedimentary Rock
In geology, metasedimentary rock is a type of metamorphic rock. Such a rock was first formed through the deposition and solidification of sediment Sediment is a solid material that is transported to a new location where it is deposited. It occurs naturally and, through the processes of weathering and erosion, is broken down and subsequently sediment transport, transported by the action of .... Then, the rock was buried underneath subsequent rock and was subjected to high pressures and temperatures, causing the rock to recrystallize. The overall composition of a metasedimentary rock can be used to identify the original sedimentary rock, even where they have been subject to high-grade metamorphism and intense deformation. Types of metasedimentary rocks See also * References Metamorphic petrology {{Rock-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
