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World Tunnelling News

Jan 05, 2016 - Helsinki-Tallinn fixed link seems feasible Yle Uutiset Jan 04, 2016 - India awards large $1.5 billion road link contract India Times Jan 01, 2016 - Bangladesh to improve infrastructure BD News 24 Dec 30, 2015 - India's longest road link to open in July NDTV Dec 29, 2015 - India envisages first underwater link India Times - India Today Dec 29, 2015 - China opens longest lake crossing GB Times Dec 28, 2015 - Japanese court ruling on fatal ceiling collapse The Yomiuri Shimbun - Japan News Dec 28, 2015 - Shanghai completes 13th river link Shanghai Daily Dec 26, 2015 - Bids placed for Istanbul mega-project Daily Sabah Dec 25, 2015 - Complex Singapore road link delayed Straits Times Dec 25, 2015 - Ottawa LRT enters final phase Ottawa Sun Dec 22, 2015 - Rio Metro Line 4 needs more funding The Rio Times Dec 20, 2015 - Work starts on Auckland's City Rail Link Stuff.co.nz Dec 18, 2015 - Study looks at replacing old Baltimore rail link The Baltimore Sun Dec 14, 2015 - US transportation bill boosts Hudson rail project New York Times Dec 14, 2015 - Cost of Mumbai Metro Line 3 underestimated The Indian Express Dec 14, 2015 - Cologne LRT opens phase III Railway Gazette Dec 14, 2015 - Qatar progresses with rail infrastructure Doha News Dec 10, 2015 - Tunnelling to start on Shinkansen maglev line The Asahi Shimbun Dec 09, 2015 - Sweden opens its longest rail tunnel International Railway Journal Dec 04, 2015 - Barge launches Thames Tideway construction Tideway news release Dec 03, 2015 - Memorial ceremony for Sasago tunnel collapse Japan Today Dec 02, 2015 - TT2 recognised for work with the disabled Shield's Gazette Nov 30, 2015 - Group to lobby for Malta-Gozo fixed [...]

By smadi66|January 17th, 2016|Geotechnical Missouri, St. Louis, Geotechnical Indiana, Tunneling, Geotechnical Kentucky, Geotechnical Tennessee, Geotechnical Ohio, Geotechnical Illinois, Geotechnical Michigan|0 Comments

Louisville Indiana – Kentucky Ohio River Bridges Project

https://www.youtube.com/watch?v=26r9MpVATsI Today's "Walk the Bridge" event attracted tens of thousands of people. The Louisville-Southern Indiana Ohio River Bridges Project addresses cross-river transportation needs in Louisville, Kentucky and Southern Indiana and will result in safer travel, less congestion and improved access to destinations in the region. LOUISVILLE, Ky. – Governor Steve Beshear announced that the new Ohio River bridge between Kentucky and Indiana in downtown Louisville will be named the Abraham Lincoln Bridge – connecting, as it does, the states of Lincoln’s birth and raising. “Lincoln led our nation through its bloodiest and greatest constitutional and political crisis – the American Civil War,” Gov. Beshear said. “But at the end of that national trauma, we remained a ‘United’ States of America. It’s therefore fitting that we honor Lincoln’s legacy with a bridge that further unites Kentucky, where he was born, with Indiana then Illinois, where he emigrated as a youth and grew to adulthood.” Kentucky and Indiana jointly are building the bridges project to improve cross-river mobility between Louisville and Southern Indiana. The project also includes construction of a new bridge eight miles upriver, connecting Prospect, Kentucky, and Utica, Indiana.

By smadi66|December 6th, 2015|Louisville, Lexington, Geotechnical Indiana, Bowling Green, Owensboro, Hopkinsville, Louisville, Richmond, Geotechnical Ohio, Florence, Georgetown|0 Comments

St. Louis Area Flood Plains and Levees

As water rushed toward St. Louis in May 2015, attention is on geotechnical runaway development that has occurred since the floods of 1993. ST. LOUIS, — Miles and miles of bigger and stronger levees have been built along the Missouri and Mississippi Rivers since the deadly floods of 1993, and millions of dollars have been spent on drainage improvements. Building is happening on flood plains across Missouri, but most of the development is in the St. Louis area, and it is estimated to be worth more than $2.2 billion. Though scientists warn about the danger of such building, the Missouri government has subsidized some of it through tax financing for builders. The existing alignment of the Missouri River levee and embankment system is recognized to have breach/foundation distress from underseepage and boil activity concerns as a result of hydrologic conditions and flow constrictions. The repetitive cycle of repairing levees in place after each major flood event has resulted in increased O&M and RR&R costs, increased flood risk, and a general concern over the effective level of protection. Levee repairs in place do not reduce flood risk. Additionally, the current alignment of federal levees has acted to disconnect the river from its historic floodplain causing environmental degradation and impaired habitat for fish and wildlife. It several locations, bridges (rail and highway) and abutments, have encroached into the river’s conveyance area, increasing stages on the upstream side and increasing velocities on the downstream side, which also influence the performance of the levees.

By smadi66|November 25th, 2015|Rolla, Kansas City, Liberty, Springfield, Independence, Columbia, Lee’s Summit, Saint Joseph, Saint Peters, Blue Springs, Chesterfield, Geotechnical Missouri, Jefferson City, St. Louis|0 Comments

St. Louis Missouri Local News Releases

Current News 2015 - November 2015 - October 2015 - September 2015 - August 2015 - July 2015 - June 2015 - May 2015 - April 2015 - March 2015 - February 2015 - January 2014 - December 2014 - November 2014 - October Provide Geotechnical drilling in Missouri and St. Louis area

By smadi66|November 25th, 2015|Lee’s Summit, Saint Joseph, Saint Peters, Blue Springs, Chesterfield, Jefferson City, St. Louis, Rolla, Kansas City, Liberty, Springfield, Independence, Columbia|0 Comments

Percolation test

Testing method A percolation test consists of digging one or more holes in the soil of the proposed leach field to a specified depth, presoaking the holes by maintaining a high water level in the holes, then running the test by filling the holes to a specific level and timing the drop of the water level as the water percolates into the surrounding soil. There are various empirical formulae for determining the required size of a leach field based on the size of facility, the percolation test results, and other parameters. For leach line testing, a minimum of three test holes are drilled, most commonly six to eight inches in diameter. Ideally, these should be drilled to different depths from three to six feet below the surface. For better, more conclusive results, five drill holes are used in a pattern of one hole at each corner of the proposed leach field and one test hole in the center. Testing of these holes will result in a value with units of minutes per inch. This value is then correlated to a predetermined county health code to establish the exact size of the leach field. Testing for horizontal pits typically requires five to eight test holes drilled in a straight line, or along a common contour, from three to ten feet below the surface. Testing is identical to leach line testing, though the end result is a different type of septic system, established through a different calculation. Vertical seepage pits are slightly different in testing methods due to their large size, but the basic testing method is essentially the same. A hole, typically three to four feet in diameter is drilled to a depth of twenty or thirty feet (depending on the local groundwater table), and a fire hose is used to [...]

Contractor refuses to refund INDOT for crumbling asphalt | Construction Dive

Indiana highway contractor Brooks Construction said the transportation department's specifications are to blame for the state's asphalt problems. Indiana highway contractor Brooks Construction said it will not comply with the Indiana Department of Transportation’s (INDOT) ultimatum that the company either refund $5.15 million or re-install three miles of crumbling asphalt, according to a statement released by John Brooks, executive vice president of Brooks Construction. Brooks said INDOT conducted 72 successful tests on the asphalt mix in question during the course of the project, paid his company in full for their work, and even paid bonuses of $18,000 for "an asphalt mix that exceeded requirements." INDOT is currently testing asphalt samples from 188 recent road projects across the state, and up to $71 million worth of pavement may be defective and could deteriorate ahead of schedule due to flaws in the asphalt mix. Brooks Construction is the first contractor to be held responsible since INDOT begain its investigation into the faulty asphalt on state roads, and INDOT has not yet released any other results that implicate other highway contractors. INDOT maintains that the fault lies in the asphalt mix that contractors have been using, but critics of INDOT blame the road problems on the recycled asphalt INDOT incorporated into its specifications in 2010. In response to Brooks' refusal to comply with INDOT’s demand, an INDOT spokesman told WRTV that the department would seek to resolve the issue through Brooks' insurance company. "As a family-owned business building projects in Indiana for more than 100 years, we are committed to working with INDOT to resolve the state's widespread pavement issues,” Brooks said in his statement. “We will not, however, accept legal responsibility for an industry problem caused by INDOT's specifications and quality assurance program.” Source: Contractor refuses to refund INDOT for crumbling asphalt | Construction Dive

By smadi66|November 22nd, 2015|Construction Inspection indianapolis, Construction Inspection Indiana, Fort Wayne|0 Comments

Geotechnical Experts on site Today Developing a Plan at Wildcat Creek Bridge

August 8, 2015 Geotechnical Experts on site Today Developing a Plan at Wildcat Creek Bridge TIPPECANOE COUNTY, Ind. – Geotechnical experts observed conditions at the I-65 northbound bridge over Wildcat Creek today and are working to test and analyze the soils and develop a detailed plan to address and prevent further pier settlement. INDOT Commissioner Brandye Hendrickson briefed Governor Mike Pence by phone today and he is monitoring the situation. What happened Structural engineers monitoring the I-65 northbound bridge over the Wildcat Creek noticed movement in the riverbank pier and ordered the bridge closed Friday afternoon. An estimated reopening date for the bridge will not be known until soils testing and analysis is completed. INDOT will work to provide updates as new information is available. Detour I-65 northbound merges to one lane and is diverted onto U.S. 52 at Exit 141 north of Lebanon. Follow U.S. 52 north for nearly 17 miles, then turn left at State Road 28. Follow S.R. 28 west for about 10 miles, then turn right onto U.S. 231. Follow U.S. 231 north for about 33 miles until it intersects I-65 again in White County. INDOT thanks the motoring public for their patience while engineers and other experts work to safely reopen the bridge. INDOT is installing temporary traffic signals at the S.R. 28 intersections with U.S. 52 and U.S. 231. Until those are completed late on Sunday, INDOT and law enforcement staff are helping to direct traffic. INDOT engineers are monitoring traffic flow on U.S. 231 signals and adjusting timing patterns. INDOT has asked contractors to suspend work where the official detour rejoins I-65 in White County. Message alerting travelers of the closure are posted on dynamic message signs as far south as the Louisville metro area. INDOT is working to identify and clear alternate routes [...]

Geotechnical Engineering | Civil and Environmental Engineering at Illinois

https://www.youtube.com/watch?v=0BmZumw2Odo https://www.youtube.com/watch?v=qfhrUYJHRjc https://www.youtube.com/watch?v=SXRv7aSNUtI Geotechnical Engineering The Geotechnical Engineering program within CEE at Illinois has educated generations of experts in the use of natural material such as soil and rock in combination with engineered material such as concrete, steel and geosynthetics, in the design of dams, tunnels, on-shore and off-shore reclamation for airports, landfills, deep excavations, and foundations for structures of all kinds. Alumni of CEE's Geotechnical Engineering program have made significant contributions to major projects like subway systems in the nation’s largest cities, the Hoover Dam and the World Trade Center. Today, geotechnical engineering faculty members have expertise in earthquake engineering, soil mechanics behavior, foundation engineering, rock mechanics and tunneling, and advanced numerical modeling techniques. Research interests of the Geotechnical Engineering faculty include: Deep excavations Earthquake engineering Numerical modeling Static and dynamic Soil-structure interaction. Engineering properties, construction problems, and ground modification technology in soft clays and silts, stiff clays and soft rocks, and granular materials Soil-structure interaction Reliability-based design Mechanically stabilized earth and earth support systems Ground improvement methods and their effect on structures Soil liquefaction during earthquakes The static and seismic stability of natural and excavated slopes Source: Geotechnical Engineering | Civil and Environmental Engineering at Illinois Geotechnical Engineering Illinois

By smadi66|October 19th, 2015|Skokie, Berwyn, Mount Prospect, Springfield, Bloomington, Naperville, Tinley Park, Bolingbrook, Normal, Waukegan, Champaign, Oak Lawn, Wheaton, Cicero, Oak Park, Pile Foundation, Woodridge, Decatur, Orland Park, Tunneling, Des Plaines, Palatine, Geotechnical Illinois, Elgin, Peoria, Chicago, Evanston, Rockford, Arlington Heights, Hoffman Estates, Schaumburg, Aurora, Joliet|0 Comments

California highway landslide leaves vehicles buried – video

Aerial footage shows work crews clearing mud and debris following flash floods that left nearly 200 vehicles stuck in up to 5ft (1.5 metres) of mud. The Leona Valley, about 20 miles north of Los Angeles, saw extensive downpours on Thursday, with 3.58 inches (9 cm) of rainfall during a 30 minute period. Elsewhere in southern California, several roads were washed out and there were reports of motorists having to be rescued from torrential flooding

By smadi66|October 19th, 2015|Kokomo, Geotechnical Tennessee, Fishers, Geotechnical Indiana, Noblesville, Lafayette, Geotechnical Ohio, Brownsburg, Soil Testing, Plainfield, Michigan City, Geotechnical Illinois, Crawfordsville, Drilling, Seymour, Muncie, Geotechnical Michigan, Elkhart, Indianapolis, Westfield, Richmond, Geotechnical Missouri, Goshen, Anderson, West Lafayette, South Bend, Greenfield, Bloomington, Mishawaka, Terre Haute, Greenwood, Calumet, Shelbyville, Vincennes, Highland, Columbus, Portage, Hammond, Landslides, La Porte, Evansville, Louisville, Gary, Geotechnical Engineer Indiana, Lebanon, Fort Wayne, Geotechnical Kentucky, Carmel, Geotechnical Engineer Indianapolis, New Albany|Comments Off

Interstate 10 in California closed east of Coachella after bridge collapse

A 30-foot section of a bridge on the 10 Freeway in Desert Center east of Coachella co A 30-foot section of a bridge on the 10 Freeway in Desert Center east of Coachella collapsed Sunday, closing Interstate 10 indefinitely. The 10 Freeway was shut down from Desert Center to the Arizona state line as a result of the bridge collapse and heavy flooding, authorities said. llapsed Sunday, closing Interstate 10 indefinitely.Source: Interstate 10 closed east of Coachella after bridge collapse

By smadi66|July 22nd, 2015|Geotechnical Kentucky, Geotechnical Tennessee, Geotechnical Ohio, Geotechnical Illinois, Pile Foundation, Geotechnical Indiana, Construction Inspection Indiana|0 Comments