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A Climate Change-Induced Disaster in Denali National Park

Source: A Climate Change-Induced Disaster in Denali National Park | Time The Times has recently showcased an article on the current rockslide situation in Denali National Park. The effects of climate change have been dramatic with the current melting of the permafrost. The National Parks Service has recently upped through gravel removal of the Pretty Rocks Landslide in an effort to keep up as the rapidly thawing permafrost picks up pace. Alaska is right now recognized as the country’s fastest-warming state. The landslide hit unprecedented speed 4 weeks ago causing the team to close the back half of the park weeks earlier than anticipated. This only signals bad news as reservations are canceled in the short term and the long term implications are yet unknown. “This is the canary in the coal mine for infrastructure disruption in Alaska,” says the Camp Denali lodge owner Simon Hamm. “If things continue on the path they’re on, it’s not going to just be Pretty Rock—it’s going to be half of the Alaskan highway system.” Rapid deterioration Denali National Park is one of the U.S.’s largest national parks at 6 million acres, and sits about four hours north of Anchorage. While the entrance to the park is certainly beautiful, many people prefer to hop on buses to access the park’s marquee attractions deep down its single 92-mile road: views of Mt. Denali (formerly Mt. McKinley), the highest peak in North America at 20,000 feet; the gleaming Wonder Lake; rolling mountainsides that contain an abundance of wildlife, including grizzly bears, moose, caribou and bighorn sheep. About halfway along the road lies the Pretty Rocks Landslide, a slowly sliding section of earth that acts more like a glacier than a rockfall. Since the 1960s, permafrost deep below the earth’s surface has thawed, causing the soil and [...]

By kk42|September 21st, 2021|Geotechnical Pennsylvania, Geotechnical South Carolina, Geotechnical USA, Landslides, Geotechnical Montana, Kalifornsky, Geotechnical Minnesota, Geotechnical South Dakota, Geotechnical US, Geotechnical Alaska, Geotechnical Indiana, Geotechnical Nevada, Geotechnical Alabama, Geotechnical Texas, Geotechnical Arizona, Anchorage, Geotechnical Kentucky, Geotechnical New Hampshire, Geotechnical Connecticut, Geotechnical Utah, Geotechnical Arkansas, Juneau, Geotechnical Tennessee, Geotechnical New Jersey, Geotechnical Florida, Geotechnical Vermont, Geotechnical California, Fairbanks, Geotechnical Ohio, Geotechnical New Mexico, Geotechnical Iowa, Geotechnical Virginia, Geotechnical Colorado, Badger, Geotechnical Illinois, Geotechnical New York, Geotechnical Kansas, Geotechnical Washington, Geotechnical Delaware, Knik-Fairview, Geotechnical Michigan, Geotechnical North Dakota, Geotechnical Mississippi, Geotechnical Idaho, College, Geotechnical Missouri, Geotechnical Oklahoma, Geotechnical Nebraska, Geotechnical Louisiana, Wasilla, Geotechnical Georgia, Geotechnical Oregon, Geotechnical North Carolina, Geotechnical Maine, Tanaina, Geotechnical Maryland, Geotechnical Rhode Island, Geotechnical West Virginia, Geotechnical Massachusetts, Lakes|0 Comments

Geotechnical Instrumentation and Monitoring Consumption Market Size to Witness Huge Growth by 2027 | By Top Leading Vendors – Keller, Fugro, Nova Metrix, Geokon, Geocomp, Sisgeo, Cowi – The Daily Chronicle

Source: Geotechnical Instrumentation and Monitoring Consumption Market Size to Witness Huge Growth by 2027 | By Top Leading Vendors – Keller, Fugro, Nova Metrix, Geokon, Geocomp, Sisgeo, Cowi – The Daily Chronicle

By smadi66|September 22nd, 2020|Geotechnical Idaho, Geotechnical Michigan, Geotechnical Oklahoma, Geotechnical Mississippi, Geotechnical Louisiana, Geotechnical Missouri, Geotechnical Oregon, Geotechnical Nebraska, Geotechnical Maine, Arlington Heights, Geotechnical Rhode Island, Geotechnical North Carolina, Geotechnical Massachusetts, Geotechnical Georgia, Geotechnical South Carolina, Geotechnical West Virginia, Geotechnical Montana, Geotechnical Maryland, Geotechnical South Dakota, Geotechnical Services, Geotechnical Nevada, Geotechnical Pennsylvania, Geotechnical Texas, Geotechnical Arizona, Geotechnical New Hampshire, Geotechnical Wisconsin, Geotechnical Utah, Geotechnical Arkansas, Geotechnical Indiana, Geotechnical New Jersey, Geotechnical Minnesota, Geotechnical Vermont, Geotechnical California, Geotechnical Kentucky, Geotechnical New Mexico, Geotechnical Alabama, Geotechnical Virginia, Geotechnical Colorado, Geotechnical Tennessee, Geotechnical New York, Geotechnical Connecticut, Geotechnical Washington, Geotechnical Delaware, Geotechnical Illinois, Geotechnical North Dakota, Geotechnical Florida, Geotechnical Wyoming|0 Comments

Adding a Soil Testing Service to Your Drilling Business

Are you a driller looking at adding a soil testing service to your business? If you’ve been in the drilling business for any length of time, or if you’ve been involved in drilling around sites that are being prepped for construction or development - you may have crossed paths with a Cone Penetration Test (CPT) operation. If you have been curious about this service, you probably noticed that the operating conditions of CPT are pretty comfortable. You may have also heard that the daily rates or rates charged per foot of depth for CPT are usually quite a bit better than what you can get for drilling. Adding soil testing services to your business can be a good way to diversify your workload and ensure a steady income for your business and your family. What you may not know, is that the skills you’ve acquired to drill are a good basis for entering the CPT business. What do you need to get started? A good place to start is to start comprehending the reasons why customers need a soil testing service and the basics of how this type of soil testing works. This will help you to start thinking about the needs in your area and the types of things you’ll need to learn in order to be successful in the business. Why a Soil Testing Service? When engineers are in the early stages of designing infrastructure, such as roads, bridges, or foundations for buildings, they need to know the characteristics of the ground that is going to be built on. Depending upon the type of construction, they may need to understand how soil, clay and rock are layered below the surface. This can help them to decide what the construction process will look like. For instance, will blasting or [...]

By smadi66|December 5th, 2019|Introductory, Geotechnical Arizona, Geotechnical Arkansas, Geotechnical California, Geotechnical Colorado, Geotechnical Delaware, Geotechnical Idaho, Geotechnical Georgia, Geotechnical Alabama, Geotechnical Connecticut, Geotechnical Florida|0 Comments

Presenting CPT Data to Owners & Engineers: an Important Role of CPT

If you are considering entering the CPT business from, let’s say, operating a well-drilling business, you’ll want to prepare yourself for a few adjustments. Depending upon the type of business you are used to running or being a part of, you’ll find that the customer interactions may be different. CPT testing is all about gathering data from field tests and quickly turning that into useful information for the site owner, an engineer, construction company, government agency etc. This blog is an introduction to the basics of CPT reporting. We’ll start with what we’re trying to measure, then we’ll discuss how a CPT system, and in particular the probe, gathers specific types of useful data. Then we’ll, look at some ways that this data is interpreted to make useful information for your customer to make decisions. In real life, you’ll want to use a software application that quickly and efficiently does this interpretation for you. However, Vertek CPT believes in training it’s customer partners from the ground up (so to speak) so that you are comfortable and confident in every conversation you’ll have. What are we trying to measure? CPT is the quickest and most cost-effective way to map out what the soil conditions are under your feet. If you imagine being able to look at the ground ‘from the side’, you’d see layers something like this: For people responsible for building highways through hilly territory, or building a heavy structure, it’s important to know what’s underground before they begin planning. This is where CPT comes in. CPT lets you draw a picture of what’s underground for folks who need it. How Does a CPT Probe Gather Useful Types of Data? So let’s start with the Cone, the ‘C’ in CPT. If you look at the picture below, you can imagine [...]

By smadi66|December 5th, 2019|Introductory, Geotechnical Arkansas, Geotechnical California, Geotechnical Colorado, Geotechnical Delaware, Geotechnical Idaho, Geotechnical Indiana, Geotechnical Illinois, Geotechnical Georgia, Geotechnical Connecticut, Geotechnical Florida|0 Comments

Why Are There So Many Kinds of CPT Rigs?

As you look through our website, you'll see that there are a number of different types of CPT Rigs. As you can imagine, they each have their purpose, or 'application'. In order to understand why different types of CPT Rigs exist, it's helpful to remember how CPT works in the first place. Cone Penetration Testing The goal of Cone Penetration Testing is to drive a hardened cone vertically into the the ground and to keep it moving at a specific rate of progress. The force that it takes to maintain the cone moving downward at a defined rate is an indicator of how hard the soil is at a given depth. The friction the cone sleeve encounters along the way gives us an indication of the make up of the soil. Deciding Between CPT Rigs As you can imagine, as the cone progresses further downward and encounters different types of soils, sands, clays and rocks it can take a substantial amount of pressure to keep it moving! One of the first factors that influences the design of CPT Rigs is the maximum amount of pressure that will be required to perform a specific test, to a specific depth in a given geological area. As much as 20 tons of downward force may be required to perform a broad enough range of tests to make a given rig viable for a market. For every ton of downward pressure on the test cone through the rod system, you have to have a reaction force equal to this to keep the Rig from lifting up. This means that either the Rig has to be heavier than the maximum push force, plus a safety margin, or it needs to be anchored down in some way as to reliably resist the upward force generated by [...]

By smadi66|December 5th, 2019|Geotechnical Kansas, Introductory, Cone Penetration, Geotechnical Colorado, Geotechnical Delaware, Geotechnical Indiana, Geotechnical Idaho, Geotechnical Illinois, Geotechnical Georgia, Geotechnical Connecticut, Geotechnical Florida, Geotechnical Iowa|0 Comments

Why Are There So Many Kinds of CPT Rigs?

As you look through our website, you'll see that there are a number of different types of CPT Rigs. As you can imagine, they each have their purpose, or 'application'. In order to understand why different types of CPT Rigs exist, it's helpful to remember how CPT works in the first place. The goal of Cone Penetration Testing is to drive a hardened cone vertically into the the ground and to keep it moving at a specific rate of progress. The force that it takes to maintain the cone moving downward at a defined rate is an indicator of how hard the soil is at a given depth. The friction the cone sleeve encounters along the way gives us an indication of the make up of the soil. As you can imagine, as the cone progresses further downward and encounters different types of soils, sands, clays and rocks it can take a substantial amount of pressure to keep it moving! One of the first factors that influences the design of CPT Rigs is the maximum amount of pressure that will be required to perform a specific test, to a specific depth in a given geological area. As much as 20 tons of downward force may be required to perform a broad enough range of tests to make a given rig viable for a market. For every ton of downward pressure on the test cone through the rod system, you have to have a reaction force equal to this to keep the Rig from lifting up. This means that either the Rig has to be heavier than the maximum push force, plus a safety margin, or it needs to be anchored down in some way as to reliably resist the upward force generated by the test (or 'sounding'). Depending upon the [...]

By smadi66|December 5th, 2019|Introductory, Cone Penetration, Geotechnical Delaware, Geotechnical Idaho, Geotechnical Indiana, Geotechnical Louisiana, Geotechnical Kentucky, Geotechnical Illinois, Geotechnical Georgia, Geotechnical Florida, Geotechnical Iowa, Geotechnical Kansas|0 Comments

Using a Compaction Test to Determine Site Safety Standards

Compaction is an engineering term used to describe the ability of a soil type to be treated with mechanical energy and compressed such that air voids are removed. With individual grains compressed to remove air voids, it becomes more difficult for the soil being compressed to 'settle' further on its own. The strength of the soil in loads other than compression can be increased because the individual particles within the soil become interlocked and friction can become a more important function of the soil behavior. Compacted soil, because air spaces between the particles are reduced has lower hydraulic conductivity (passes water less easily under a given pressure). Why do a Compaction Test? Compaction can be important when high loads such as building foundations may cause a soil to settle over time causing shifting or even collapse. It can be valuable for soil that you want to retain in place, such as along an embankment or behind a retaining wall to be compacted. The compaction process, by increasing the friction in the compacted soil helps to maintain against horizontal slippage which can either result in a landslide off from an embankment or in higher pressure behind a retaining wall, causing it to bow outwards. Because compaction lowers hydraulic conductivity, it can be useful, or even essential in the functioning of earthen dams, drainage ditches and levees. A measurement of compaction is the change in density, or weight per unit volume increase after the soil in question is compacted. That's why sometimes 'compaction' is also called 'densification'. This is actually not a correct designation as 'densification' actually includes both 'compaction' which is described above as well as 'consolidation'. Consolidation involves fluid flow out of the soil being densified, such as when you are treating clay heavy soils. Water is squeezed out from [...]

By smadi66|December 5th, 2019|Geotechnical Louisiana, Geotechnical Maine, Geotechnical Indiana, Geotechnical Massachusetts, Geotechnical Kentucky, Geotechnical Illinois, Geotechnical Maryland, Geotechnical Iowa, Geotechnical Kansas, Introductory, Soil Testing, Geotechnical Idaho|0 Comments

CPT Rigs: Types, Uses & Applications

If you're familiar with the CPT University then you may have had the chance to see our article: Why Are There So Many Kinds of CPT Rigs? As you may have read, there are many different rigs available; but depending upon the types of surface conditions or the terrain, one option may be more suitable for your project over another. Read on to take a deeper dive into a few different examples of CPT rigs, uses and applications. S4 CPT Push System The S4 is a robust and affordable push system that can be attached to many types of heavy equipment including ski steers, trailers, backhoes, and more. The S4 is revolutionary in many respects, for instance it provides 20 tons of CPT push capacity in a compact and affordable package. This agile, lightweight rig is only available from Vertek CPT and is one of the most inexpensive alternatives to the traditional rig. The system is equipped with full-systtem hydraulics giving you full operating control, as well as the ability to drive 2 Motorized Anchor Heads and all of the CPT system features you need to eliminate the need for external cylinders. There is no alternative to the S4 Push System that lets you enter the CPT business with confidence that you can prove out your business model before going 'all in'. CPT Track Rigs With fully equipped features and capabilities, CPT Track Rigs are available in light, medium and heavy configurations. These CPT rigs are designed to meet rigorous requirements and the demanding range of foundation work you are likely to encounter as your business grows. For certain geographical areas soft soils, boggy areas and changing environments demand a track rig. This means that you can immediately differentiate your services from the competition. CPT Track Rigs are super-pro. Track [...]

By smadi66|December 4th, 2019|Geotechnical Delaware, Geotechnical Idaho, Geotechnical Illinois, Geotechnical Georgia, Geotechnical Connecticut, Geotechnical Florida, Introductory, Geotechnical Arizona, Geotechnical Arkansas, Geotechnical California, Geotechnical Colorado|0 Comments

Terracon Consulting Engineers Takes Delivery of 20 Ton CPT Track Rig

Cone penetration test rig leaves Vertek CPT's Randolph, VT facility. It can be a bit somber watching one of our CPT track rigs head out the door after spending a few months building the rig here in Vermont, but thankfully we get to work with our partners long after the sale to make sure they're successful in the field. This 20 ton cone pentration test track rig is headed to Terracon Consulting Engineers and Scientists of Olathe, Kansas. [/fusion_youtube]

By smadi66|December 4th, 2019|Geotechnical Delaware, Geotechnical Indiana, Geotechnical Idaho, Geotechnical Illinois, Geotechnical Georgia, Geotechnical Connecticut, Geotechnical Florida, Geotechnical Iowa, Vertek Partners, Video Posts, Geotechnical California, Geotechnical Colorado|0 Comments

Towable CPT Trailer – Push System on Wheels!

New - Mount an S4 CPT Push System on equipment or a trailer! Customer response to our new S4 Push System has been very impressive. The most affordable and flexible 20 ton push system available has made CPT newly accessible to a variety of service providers around the world without the need for large dedicated vehicles. In keeping with our history of cone penetration innovation we'd proud to show off our latest improvement to the S4 Push System: Towability. That's right, the S4 can now be purchased attached to our custom trailer enabling it to be driven from job site to job site behind any full size pick-up truck. [/fusion_youtube]

By smadi66|December 3rd, 2019|Geotechnical Illinois, Geotechnical Georgia, Geotechnical Connecticut, Geotechnical Florida, Geotechnical Iowa, Geotechnical Kansas, Introductory, Cone Penetration, Video Posts, Geotechnical Indiana, Geotechnical Delaware, Geotechnical Kentucky, Geotechnical Idaho|0 Comments