CPT Blog Archives - GEOTILL provides geotechnical, construction testing and Environmental services Indianapolis Indiana

The Inner Workings of Geotechnical Drilling | The Driller

The Inner Workings of Geotechnical Drilling Column Helps Drillers, Consultants Improve Drilling Operations Geotechnical drilling is a compelling field. With The Underground Network, we aim to help drillers, assistant drillers, consultants and others navigate its complexities. Welcome to The Underground Network, a new column designed unravel the inner workings of geotechnical drilling. I aim to provide candid, constructive insights for experienced drillers, assistant drillers just starting out and environmental consultants alike. I hope to make this column a must-read for enhancing your knowledge and improving your drilling operations. Why should you read The Underground Network? In this first edition, I outline the topics I plan to cover and offer a couple of starter bits of advice. Practical Techniques and Tips: Geotechnical drilling is a compelling field, and it’s important to stay up-to-date on new techniques and tips that can improve your everyday drilling efficiency onsite. I can provide practical insights, proven approaches and fresh ideas you can apply directly to your everyday work onsite. These tips can complement your existing skills, minimize downtime and ultimately improve the outcomes of your client’s projects. What kind of tips? How about this: Looking to be a better driller? Baroid IDP has conducted drilling fluid trainings for over 50 years, offering field and classroom seminars and demonstrations for rig personnel, contractors, engineers, geologists and regulatory personnel. These seminars, held annually in Houston, consist of five-day courses covering basic drilling fluids technology as well as operational applications such as water well drilling, diamond coring for minerals exploration and construction-trenchless technology. I can guide you through the sign-up process. Industry Updates and News: Success in our drilling industry requires you to stay informed about the latest trends and developments. I plan to deliver important industry updates, including new technologies, drilling rig advancements and regulatory changes. By [...]

By smadi66|July 7th, 2024|Drilling Kentucky, Geotechnical Indiana, Drilling Michigan, Drilling, Drilling Missouri, Geotechnical Kentucky, Geotechnical Ohio, Geotechnical Illinois, Cone Penetration, Geotechnical Michigan, Geotechnical, Drilling, Drilling, Drilling Indiana, Drilling Illinois, Drilling Ohio|0 Comments

BUILD Grant Geotechnical Work Kentucky

BUILD Grant Geotechnical Work Kentucky Leads to Schultz Park Temporary Closure. To design the BUILD grant's riverboat landing facility, a portion of Schultz Park will be closed for crews to conduct geotechnical drilling. A section of Schultz Park along Paducah’s riverfront will be closed to the public for geotechnical crews with Bacon Farmer Workman Engineering & Testing, Inc. to access to the park. The floodwall opening at the Jefferson Street and Water Street intersection will be closed to the public. However, this work will not affect the parking area facing the Ohio River near the transient boat dock. The public will be able to access those parking spaces and the adjacent park from the floodwall entrance at North Second and Madison streets. The four geotechnical borings will provide soil data that will be used in the design of the new riverboat landing structure included in Paducah’s Better Utilizing Investments to Leverage Development (BUILD) grant award. Mayor George Bray said, “This geotechnical work is an exciting milestone for the BUILD grant. We are moving from the environmental assessment phase, which has taken significant time due to requirements by the regulatory agencies, to the design phase. We are grateful for the generous BUILD grant funds and look forward to improving the passenger experience for riverboat visitors to downtown Paducah and to enhancing downtown’s transportation elements.” Source: BUILD Grant Geotechnical Work Leads to Schultz Park Temporary Closure | City of Paducah

By smadi66|July 7th, 2024|Richmond, Florence, Georgetown, Drilling Kentucky, Covington, Geotechnical Kentucky, Elizabethtown, Louisville, CPT Blog, Lexington, Cone Penetration, Bowling Green, Owensboro, Hopkinsville|0 Comments

Louisville VAMC project reaches milestone > Louisville District > Kentucky News Stories

At times there were multiple drill rigs working on the site of the Louisville VA Medical Center to prepare the earth for drilled piers. Louisville, Ky. – For most construction projects, progress can be visually measured as structures start to come out of the ground and begin to take shape. This would not be possible without the foundations that transfers the loads of the vertical structures to the soil safely. Part of that foundation work can include the installation of drilled piers. The Louisville VA Medical Center project recently achieved the completion of a major feature of work by reaching the milestone of “bottoming out” with the installation of the last of 1,057 drilled piers across the site. The drilled piers ranged from 24 to 72 inches in diameter and from five to 35 feet in depth. All buildings have some type of foundation. Most residential buildings have what is called shallow foundations which generally include spread footings to prevent the building from settling. Drilled piers are a type of deep foundation, which is generally utilized for larger buildings, like the Louisville VA Medical Center, said David Garvin, geotechnical engineer. “Drilled piers connect structures directly to the bedrock - keeping the building in place by minimizing settlement and lateral loads from outside forces such as wind loads, seismic loads, etc.,” he explained. “Since drilled piers are below the building, they are advanced from the top of the ground until bedrock is reached, with rebar and concrete placed, then the pier is tied into a column or grade beam.” “Once the drilled pier is tied into the column or grade beam, the steel beams will be placed on top of it. After all steel beams are placed the loads from the entire building will transfer down to the drilled piers and [...]

By smadi66|July 7th, 2024|Louisville, Lexington, Covington, Bowling Green, Elizabethtown, Owensboro, Cone Penetration, Hopkinsville, Richmond, Florence, Georgetown, Drilling Kentucky, Geotechnical Kentucky|0 Comments

Geotechnical Testing happening for U.S. 51 Ohio River Cairo Bridge Replacement Project in Kentucky

The Kentucky Transportation Cabinet (KYTC) announced last week that geotechnical testing for the project was to start at the end of June. The testing includes field work and drilling in the river upstream from the existing bridge. According to the release, crews are driling and testing soil samples from ground level to as deep as 400 feet below the riverbed. Drilling is taking place 24 hours a day, seven days a week, until the work is complete. “Because of the area’s complex river conditions, a lift boat will be used to minimize the impact on passing Ohio River towboat traffic,” the release stated. “The geotechnical work is expected to take a couple of months, but the schedule is dependent on river levels. The geotechnical testing will provide a better analysis of the soils under the river and existing geological conditions, which will give engineers the information necessary to design the foundations for a new bridge.” The work will have no impact on vehicle traffic crossing the existing bridge. The geotechnical work comes as the U.S. 51 Bridge Project Team has scheduled a meeting to update the public on planning for construction of a new bridge. Among other things, the team plans to share the bridge design type for the new structure that could start construction in 2028. Photos and display materials will be available online at https://us51bridge.com/ after the public meeting. The existing U.S. 51 Ohio River ‘Cairo’ Bridge serves as a north-south connector for U.S. 51 and an east-west transportation corridor for U.S. 60 and U.S. 62. The bridge carries about 5,400 vehicles per day between Kentucky and Illinois. About 43 percent of the traffic is commercial trucks. The bridge crosses the Ohio River at navigation mile point 980.4 and carries U.S. 51, U.S. 60, and U.S. 62 [...]

Streets & Drainage Update: Drilling for Geotechnical Borings – Lakesider Ohio News

The first phase of the Lakeside Streets and Drainage Project begins in fall 2024. To plan engineering work and street construction, drilling for geotechnical borings on east Lakeside will start in late March. Geotechnical boring is a process that involves drilling into the soil and evaluating the soil, rock, groundwater and overall conditions at a given depth and location. We are determining how close rock is to the pavement surface and if it could impact the project design. The project designer, Contractors Design Engineering (CDE), selected 32 locations for borings where they are concerned that rock might impact their design. “There are consistent places on the north-south streets where there’s a hump in the road that causes water to drain from the north to the south,” Seling said. “If they’re going to cut that knob down, we need to know how close the rock is to help determine if the road can be lowered to improve drainage or if the rock would substantially increase the construction cost. We can also alert the contractor about the depth of rock ahead of time so they can base their proposed cost on that situation to avoid cost increases during construction.” Geotechnical drilling Ohio contractor will provide the service. They will field stake test locations and utilities will be cleared by the Ohio Utilities Protection Service. Wertz will bore holes in the pavement, then restore them by backfilling with spoils and/or compacted stone to within 12-inches of the surface and then backfilled with asphalt cold patch to grade. The plan is to drill up to 5 feet unless they hit rock first. It will take up to three days to complete the work. Source: Streets & Drainage Update: Drilling for Geotechnical Borings - Lakesider News

By smadi66|July 7th, 2024|Cleveland, Cincinnati, Toledo, Akron, Dayton, Parma, Geotechnical Ohio, Canton, Drilling, Youngstown, Drilling Ohio, Lorain, Geotechnical Services, Columbus|0 Comments

Purdue Geotechnical Society

13th Leonards Lecture (2015) Dr. Richard E. Goodman presented the 13th Leonards Lecture on Karl Terzaghi (1883-1963), Geotechnical Engineer and Founder of Soil Mechanics The Purdue Geotechnical Society was founded in May 2003 to enhance the strong bond and working relationship among alumni, faculty, students, and staff of the Geotechnical Engineering group at Purdue University for the benefit of all. A Celebration Honoring the 100th Anniversary of Professor Leonards’ Birthday April 29, 2021 – 2pm EDT We invite you to celebrate Prof. Gerald A. Leonards’ birthday through an informal event to be held online on the afternoon of April 29th. This will be about a 2.5-hour session using ZOOM. There will be short presentations by six of Jerry's former colleagues or students that will highlight his legacy and connect it to the state of practice today and the future of our profession. Purdue Geotechnical Society - Purdue University

By smadi66|January 5th, 2022|Geotechnical Engineer Indianapolis, Geotechnical Indiana, Indianapolis, Geotechnical Services, Geotechnical Engineer Indiana|0 Comments

Foundation, Geotechnical

A Midwest leader in foundation, geotechnical, and bridge construction Specializes in a wide array of foundation piles, auger cast piles, micropiles, earth retention systems, geotechnical, and marine construction. Hardman line of services can be used in any situation there’s a need — from a one-day job to a multimillion-dollar project. Select a service to see the work they do. Deep Foundations Auger Cast Piles Displacement Piles Drilled Shafts Driven Pile Helical Piles Micropiles Push Piles Sheet Piling Earth Retention Earth Anchors Secant Walls Soil Nail Walls Soldier Piles Shotcrete Tangent Auger Cast Walls Ground Improvements Compaction Grouting Soil Grouting Geotechnical

Geologists and Geotechnical engineers provide flood risk management

Source: DVIDS - News - Geologists and Geotechnical engineers dig deep to provide flood risk management At the Arcadia flood risk management project, in Arcadia, Wisconsin, geotechnical staff are gathering data using a unique method of subsurface exploration. The Cone Penetrometer Test, or CPT, is one method used to identify and characterize soils. The CPTs were conducted with assistance from the Savannah District geotechnical and geology branch. “We benefited from their expertise and cooperation,” said Greg Wachman, senior geotechnical engineer. In CPTs, a device with a conical tip and metal sleeve measure penetration resistance as it’s pushed into the ground. Those measurements are used to characterize the soils’ engineering properties. For example, the forces on the device as it’s pushed through a soft clay are very different from those as it’s pushed through a dense sand, Wachman said. The device also records pore water pressure, which aids in understanding soil permeability and groundwater characteristics. CPTs vs. soil borings A CPT is most useful when used together with standard soil borings, Wachman explained. A soil boring drills into the ground to retrieve physical samples. In contrast, with a CPT, the soil is never seen. CPTs are significantly faster than standard borings and provide continuous test data with depth. With a soil boring, samples are collected about every 5 feet, or change in material, so it’s possible to miss important information. One limitation of the CPT, due to excessive friction, is that it may not be extended to the same depth as a soil boring. The CPTs at Arcadia are being pushed to approximately 60-70 feet, whereas a soil boring can be performed in excess of 100 feet. “By doing some CPTs next to soil borings – where we know what the soils are – we can increase the likelihood that we [...]

By kk42|December 13th, 2021|Geotechnical Wisconsin, Geotechnical Florida, CPT Blog, CPT Data, Cone Penetration, Geotechnical Arizona, Geotechnical California, Geotechnical Texas|0 Comments

Long-Term Testing Of Concrete Bond Durability

Source: Long-Term Testing Of Concrete Bond Durability The definition of concrete durability can be explained as the ability of a specimen to resist any form of weathering action, namely abrasion, chemical, physical, or any other process of deterioration. In other words, the durability of concrete can also be defined as the ability to last a long period of time without significant deterioration or failure. Image Credit: Peshkova/Shutterstock.com Types of weathering include mechanical, physical, and chemical weathering of concrete including the alkali-aggregate reaction of sulfate attack and chloride attack. Different long-term testing methods have been used over the years and more research has been done to improve the existing methods to be more economical and environmental. Consideration has also gone into methods that reduce the time in which these tests can be completed and assessed. The Importance Of Long-Term Durability Testing It is important to test for the durability of concrete bonds because of the following reasons. Firstly, concrete testing will allow the designers to determine accurately the lifespan of a specific structure according to its specific needs or requirements. If a structure is intended to last a specific period of time, long-term concrete testing can reveal the combination that is required for it to last that long. There can be economic and environmental benefits to this testing. Economically, constant rehabilitation and patching up of structures are very expensive. Hence, long-term testing can reveal the right combination of concrete mixtures for durable structures, thereby reducing the number of times for rehabilitation. Environmentally, constant rehabilitation will require more use of natural resources such as sources of energy, gypsum, or steel to continuously rehabilitate worn-out structures. Continued rehabilitation increases the carbon footprint, which is not environmentally friendly. Developments In Concrete Bond Materials New studies have revealed that the addition of carbon fibers amounting [...]

By kk42|December 10th, 2021|Geotechnical Services, Geotechnical California, Geotechnical Colorado, Geotechnical New York, Geotechnical Texas|0 Comments

Report: Drilling spills ruined wells and polluted streams in Westmoreland, across Pennsylvania

Source: Report: Drilling spills ruined wells and polluted streams in Westmoreland, across Pennsylvania | TribLIVE.com Edward Mioduski holds a jar of water produced by his Loyalhanna Township well in June 2017, a month after the water became polluted during drilling underneath nearby Loyalhanna Lake. Alice and Edward Mioduski point to where the Mariner East II pipeline cuts across their farm in Loyalhanna Township. It has been more than four years since Edward and Alice Mioduski of Loyalhanna Township have been able to drink water from their well near Loyalhanna Lake. Drilling mud mixed with the mineral bentonite leaked from the hole that Sunoco Pipeline L.P. was boring underneath the lake in May 2017. It bled into the aquifer that their 95-foot-deep well had tapped into for decades. The crystal-clear water turned cloudy gray with little white blobs floating around. “Within a short time, it went to hell,” Alice Mioduski said. Before that, their water was “the nectar of the gods. We never ran out of water.” Now, they have a 1,500-gallon plastic tank in their backyard that provides water for showering and washing clothes — when it doesn’t freeze in the winter — paid for by Sunoco. A filtration system inside the house provides water for drinking and cooking. The damage to streams and water supplies by the leaks and lost fluids during construction of the 307-mile Mariner East II pipeline is outlined in a 64-page indictment handed down last week by a statewide investigating grand jury. Energy Transfer L.P. of Dallas, a successor to Sunoco Pipeline, was slapped with 48 criminal violations of the Clean Streams Law. Fluids that were to return to the surface and be dumped into a drill pit for reuse simply disappeared underground or bubbled up to the surface. The grand jury alleges [...]

By kk42|October 15th, 2021|Geotechnical Pennsylvania, Soil Testing|0 Comments