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#1 22-03-2018 02:16:20

liyao12345
Pti nouveau
Date d'inscription: 17-03-2018
Messages: 20

In the s-lay method of laying

Offshore pipeline and its laying process is one of the most challenging feats a steel pipe manufacturer and the steel pipe supplier can face. Not only are the elements the product will face a challenge http://www.basketballknicksshop.com/Che … ks-Jersey/ , but deliver to a site is determined not by the shipping route or carrier, but by the process that is going to be used to lay the pipe. There are three main ways offshore pipeline is laid; tow-in, s-lay or j-lay. All are different and all require a different type of pipe and a different vehicle to deliver them to the site.

Tow in is just as it sounds. The pipe is actually towed to the site by a tug (sometimes two tugs). Even this has variants, because the pipe can be towed on the surface http://www.basketballknicksshop.com/Che … ks-Jersey/ , just below the surface or drug across the bottom (this last one only used in shallow water with soft sea floor). Depending upon the buoyancy modules tied to the pipeline and the depth the installer wants to use, all of these methods can vary the type of pipe you use and the construction of that pipe.

Once the pipe is towed into place, the buoyancy is removed and the pipe is allowed to fill with water and slowly sink to the sea floor. In some cases it then has to be attached to the sea floor to keep it from moving around with currents. Most deep water pipeline is held in place by the simple pressure of the sea.

In the s-lay method of laying the pipe line the pipe is let slide off the back of a barge that has a boom extended underwater to keep the pressure off the pipe. The barge maintains thrust to keep the line taunt while each section is then welded into place and slipped off the end of the barge in a continuous line. The name comes from the s-shape the pipe makes as it’s laid in the water. Again, the manufacturer must build the pipe to handle this type of installation and the supplier needs to know the installation particulars to recommend the correct pipe.

The last method is called the j-lay and is very similar to the s-lay method. The main difference is the j-lay uses a tall boom on the top of the boat to hold the pipe in a less stressful position. It forms a J as it is laid in the water. This method puts less stress on the pipe and is preferred over the s-method in deep water for that reason. It is sometimes used in depths of up to 6 http://www.basketballknicksshop.com/Che … ks-Jersey/ ,500 feet.

The knowledge needed to understand all these variables, the engineering that goes into the design development of the pipe and the ability to deliver them to the site are all important reasons to choose your pipe manufacturer and your steel pipe supplier very carefully. Organizations like the API (American Petroleum Institute) and the ASTM (American Society for Testing and Materials) are great resources to assist you in finding the qualifications you should be looking for. Our daily habits, movements and our dietary intake all impact the body on a daily basis. Most of us forget that daily activities impact our body and many of us have developed bad habits that affect the different parts of the body. The spine– or backbone – is instrumental to the strength, support http://www.basketballknicksshop.com/Che … ks-Jersey/ , flexibility and range of movement our bodies possess. It’s a complicated structure, with many interconnected and interdependent components. The cervical spine is truly fascinating, but while its complexity interests us, it’s also one reason so many different spinal conditions exist. If you’re suffering from back pain beyond occasional stiffness and muscle stress http://www.basketballknicksshop.com/Che … ks-Jersey/ , you must consult a spinal specialist to determine the problem. A few tips mentioned below will help you understand how to maintain your healthy spine, to improve your neck and back, and to reduce these habits that impact your body.

Take up a daily exercise routine and stick to it

Certain exercises will not only keep the spine flexible and supple, but also prevent it from getting damage as the body ages. Certain specific exercises like walking http://www.basketballknicksshop.com/Che … ks-Jersey/ , swimming, aerobics and even working out at the gym will provide long term benefits for the good health of the spine. Avoid habits like crossing your legs while at your desk, bending your head down while at the computer, and avoid holding the desktop phone against your shoulder. The Cervical Spine is the main bone structure that supports the whole body; therefore it is essential that it is in the peak of health.

Certain movements must be restricted

Our spine undergoes immense stress on a daily basis. Whether it reaching for something on the ground or lifting something heavy http://www.basketballknicksshop.com/Che … ks-Jersey/ , you back endures a lot of pressure. Each time we do any action involving out back, we risk the cervical spine to immense injuries. To prevent any chance of possible injury one must remember a few tips. If the object you are lifting is heavy, do not bend over it, rather bend your hips and knees and keep your back straight. Always lift smoothly and not with a jerk http://www.basketballknicksshop.com/Che … ks-Jersey/ , and never twist your back.

Maintain a good posture

Good posture helps your spine. A poor posture can damage the spine and its muscles and ligaments. A curved stance places abnormal stress on muscles and ligaments, causes backache and fatigue, and can even cause the spine to become fixed in an abnormal position. Always stand straight and keep your shoulder blades pulled back and down, and your knees and back straight. Hold your head up straight http://www.basketballknicksshop.com/Che … ks-Jersey/ , not tilting in any direction. As a general guideline, your earlobes should be above the middle of your shoulders. Especially when you are sitting at your work desk, you should sit comfortably with your spine erect and your neck in level with the screen in front of you.

Stay hydrated. Staying hydrated is important to maintaining soft tissue elasticity and fluidity in joints. Include a healthy lifestyle when it comes to food. Eating a balanced diet that includes the right amount and variety. Cheap Jerseys   Cheap NFL Hoodies   Cheap Football Jerseys   Cheap Basketball Hoodies   Cheap Hockey Hats   Cheap NCAA Jerseys Online   Cheap MLB Hoodies Online   Cheap College Hats Free Shipping   Wholesale Jerseys Free Shipping   Wholeasale Jerseys From China

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