Foundation Pipe piling

Foundation pipe piling are needed when soil and ground conditions are not suitable to support the structure to be built upon. Pipe piling are normally used in deep foundations to transfer the structure load to rock formations or to stronger soil conditions deep beneath the ground. We have the ability to cut and splice various diameters and wall thicknesses of carbon pipe piling to accommodate the specific load requirements of these structures. We also have the ability to fabricate piling lengths up to + or – 93 feet and to attach plates, shoes or conical points as required. We offer mechanical & torch cut ends as “Bevel x Square” or “Bevel x Bevel”. Our welders are AWS D1.1 certified to accommodate most marine piling, bridge piling or building pipe piling requirements.

If you work within building construction, offshore / marine construction or bridge construction alongside contractors performing pipe piling driving, please count on us for your pipe piling supply. Our company fabricates and delivers “cut to length” pilings. Single random lengths, double random lengths, and uniform length pilings.

Our team has acquired a vast amount of experience quoting, producing, and delivering orders for steel products, such as bore casings and foundation pilings. You can feel confident knowing that the construction piling supply you receive from us has highly experienced craftsmen fabricating and processing pipe and piling for your installation requirements. Our supply is “new and unused” direct from the mills. Due to our experience, our central location in the Southeast and our purchasing power, our prices are very competitive. Not only do we supply companies in the Southeast and nationwide, we ship internationally, and in most cases we deliver direct to the job site.

This article comes from southlandpipe edit released

Sheet pile construction method

In the case of unstable topsoil with small thickness, before excavation, the pile can be hit by a manual or pile driver on the working face or on the ground along the wellbore path to form a surrounding sealed cylinder, Borehole wall, and under its protection for tunneling. Sheet pile material can be used both wood and metal materials. Wooden piles are made of tough pine or oak wood, with sharp joints. Metal sheet pile commonly used No. 12 channel positive and negative mutual buckle phase. According to the ease of sheet pile into the soil can be a single block into the block, but also more than one block and into a group, into the group. For the sheet pile is generally easier than the sheet metal pile, making simple, but the stiffness is small, difficult to enter the soil, sheet pile connection between the close poor, it is used for the thickness of 3 ~ 6m of unstable soil. The sheet metal pile can be based on the ability of piling equipment conditions, suitable for the thickness of 8 ~ lOm of unstable soil. If combined with other methods, the application depth can be larger.

What are getting ready for a set of steel sheet pile works?

The position of the steel sheet pile should be convenient for the foundation construction, that is, outside the edge of the foundation structure and leave the space for supporting and removing the formwork.

Special circumstances, such as the use of steel sheet pile for the box base plate or pile cap platform side of the mold, you must lined with fiberboard or oil felt and other insulation materials, in order to pull out the steel sheet pile.

Steel sheet pile layout should be as straight as possible, to avoid irregular corners, in order to make full use of standard steel sheet pile and easy to set up support.

For multi-storey steel sheet pile, it is advisable to install the grooved support and pre-tensioning force (about 50% of the design value). And then digging in order to reduce the deformation of steel sheet pile support.

For the steel sheet pile retaining wall should be installed in the sheet pile seepage seepage water stop structure, if necessary, after the pile in the pit outside the steel sheet pile locking mouth grouting impermeable.

Removal measures of steel sheet pile

When carrying out the foundation pit backfill, to remove the sheet pile, in order to repair and re-use. Extraction of steel sheet pile to study the extraction sequence, removal time and pile hole treatment.

For the closed steel sheet pile wall, the starting point of the pile should leave the corner pile more than five, if necessary, can also be used to jump out of the method of extraction. The order of pulling out the pile is usually opposite to the order of setting.

It is advisable to unplug the steel sheet pile with the vibratory hammer or vibration hammer and the crane. The latter applies to single-use vibration hammer and pull out the steel sheet pile, to be set in the steel sheet pile on the hanger, the vibration of the hammer in the crane while pulling up pulling.

Vibration hammer to produce forced vibration, destruction of sheet pile and the surrounding soil between the cohesive force, relying on the additional force to overcome the pull out pile pile resistance. Pulling the pile, you can first use the vibration hammer to vibrate the buckle in order to reduce the bonding with the soil, and then pull side vibration. For the timely backfill pile hole, when the pile to pull slightly higher than the base plate, the suspension lead pull, vibrate with a hammer for a few minutes to fill the soil hole.

Pile-picking soils and disturbed soil layers, especially in soft soils, may cause subsidence of the existing structures or piping within the pit and affect the normal use of existing buildings, roads and underground pipelines. Effective measures.

On the pile caused by the gap in the soil to fill in time, when the vibration in the pull-back or edge vibration side of the sand and fill, but sometimes less effective. Therefore, in the control of displacement of the formation have a higher demand, should be considered in the same with the pulling pile tracking grouting.

Structural Industry

Structural pipes are present in wide range of grades and sizes so as to be utilized for a number of structural tasks and applications. Some of the common applications of the structural pipe include being used for sign poles, bollards, piling, columns and structural supports. Usually, structural pipes are such steel construction pipes that fulfill certain specified standards of mechanical properties and chemical composition.

  • ERW Steel Pipe: This type of structural pipe is normally known as high quality line pipe in the construction industry and it is used by the oil and utility industries. It can be used for dock, column, sign pole and tunnel construction.
  • Seamless Steel Pipe: This type of a structural pipe is a lasting pipe product that’s mostly used for pipe piling, caissons, dock piling and bollards ( Seamless pipes manufacturer by our sister concern Maharashtra Seamless Limited)

(This article comes from D. P. Jindal Group editor released)

The correct use of pressure piping

The reliability of a pressure pipe depends, first and foremost, on the quality of its design, manufacture and installation. In the use of pressure pipelines due to media and environmental damage, improper operation, poor maintenance, often lead to deterioration of material performance, failure and reduce its performance and cycle, or even accidents. The safety and reliability of the pressure pipeline is greatly related to the correct use. Only by strengthening the control process operation index and process discipline, insisting on the post card responsibility system and carrying out the inspection tour in earnest, can the pressure pipeline be used safely.

Process indicators include: control of operating pressure and temperature control of alternating loads and control of corrosive media content.

The post responsibility system includes: the operator is required to be familiar with the technical characteristics, system structure, technological process, process index, possible accidents and measures to be taken; the operator must pass the safety technology and post operation law study and training, After passing the examination, they can carry on the operation independently; during the operation, the operator should strictly control the process index, operate correctly, strictly prohibit overpressure, over-temperature running.

Inspection tour includes: the use of units should be based on the unit process units and the distribution of units divided by the region, clear responsibilities, to develop a strict pressure pipeline inspection system. System to clear the inspectors, check the time, check the site, should check the project, operators and maintenance personnel should be in accordance with their respective responsibilities and requirements on a regular basis to complete inspection routes to each site, each project inspection and make Tour inspection records.

Classification and application of boiler pipes

The length of the boiler is larger than that of the surrounding steel. According to the production method, the seamless steel pipe and the welded steel pipe can be divided into the outer diameter and the side length, and the outer diameter Thick, said the size range is very wide, from the diameter of the capillary until the diameter of several meters of large diameter pipe. Steel pipes can be used for pipelines, thermal equipment, machinery industry, petroleum geological exploration, containers, chemical industry and special purpose.

Steel seamless steel pipe and welded steel pipe (with pipe) two categories. According to the cross-sectional shape can be divided into round tube and shaped tube, is widely used in circular steel pipe, but there are some square, rectangular, semi-circular, hexagonal, equilateral triangle, octagonal shaped steel pipe. For the hydraulic pressure to withstand the pressure of steel pipe hydraulic pressure test to test its ability and quality, under the provisions of the pressure does not leak, soaked or swollen as qualified, some steel pipe but also in accordance with standard or demand side curling Test, flaring test, flattening test.

General boiler tube temperature below 350 ℃, domestically produced tube with 10, 20 carbon steel hot-rolled tube or cold drawn tube manufacturing.

High-pressure boiler pipes are often used in high temperature and high pressure conditions, the pipe in the high-temperature flue gas and water vapor under the action of oxidation and corrosion. Requirements of high strength steel pipe with a long, high resistance to oxidation and corrosion resistance, and good tissue stability.

Mainly used to manufacture high pressure and super high pressure boiler superheater tube, reheater tube, airway, the main steam pipe. The supply and demand trend of the high-pressure boiler pipes industry is generally stable, but the supply and demand situation of each specific sub-industry will be further divided.

New energy-saving 20g high-pressure boiler tube products in the market is gradually increasing, for example, green paint, energy saving water products, environmental protection stone, environmental protection, such as cement foam insulation board.

Selection of Liquid Flowmeter for Large Diameter

In the measurement of liquid flow of large diameter pipe, the choice of flow meter to consider the factors: the pressure loss should be smaller the better; the flow rate is not high (to reduce operating costs), the pipeline wall easy to deposit dirt, sludge; The scope should be particularly large in order to adapt to different periods of browsing the disparity difference; flowmeter protection level must also meet the requirements of the environment. In the measurement accuracy is not high occasions, you can use plug-in flowmeter to measure large flow. Because the main advantage of plug-in flow meter is the low price (only a fraction of other structures), and this flowmeter light weight, pressure loss is small, easy to install and repair.

What are the advantages of threaded fittings?

Thread pipe joints are a kind of pipe fittings that we often see and use in our lives. They are also very common in the industry. From the name will be able to see, in fact, a thread pipe connector is a pipe connection, it is the difference between the word screw. A complete thread pipe joint usually has many different small parts, such as threaded elbow, threaded union, thread pipe, threaded plug, threaded tee, threaded cap, threaded reducer, core and thread Outer wire and so on.

The appearance of thread pipe joints, so that China Unicom pipeline becomes easier, and in the demolition of repair business also greatly reduced the difficulty of the cost of the pipeline connection to make an effective thrift. Thread pipe joints for different uses are also divided into different materials, such as our life in the commonly used threaded fittings are generally made of PVC, PPR, PC, PE and other materials. In the industry, due to the professionalism of the increase and the strict requirements of the pressure, are usually made of metal pipe fittings, such as stainless steel, brass, carbon steel and alloy steel and so on.

The wide range of threaded couplings plays an important role in the connection of the pipes and has advantages in all respects as compared to other joints. More important than the most important point is the use of threaded fittings is very convenient, and there is no operational difficulty. When connecting pipes do not need to use electricity, gas, fire and other auxiliary. There is no special construction requirements. This greatly improves the efficiency of the work. And the use of thread pipe joints will not occur, such as oil leakage, safety performance is also high. In addition, the thread pipe fittings size specifications, in the case of small space can also ensure smooth operation. As the use of threaded fittings simple, general workers can successfully complete the work will not be affected by the additional impact to ensure the stability of the performance.

Do not look threaded connector seems to be very small, its strength is very high, even higher than the strength of the steel base metal. The connection speed of thread pipe joints is relatively fast, and can be directly prefabricated in the factory to complete the production of the sleeve, effectively avoiding the sleeve and the steel does not match the situation. In the case of tight schedule, but also timely and efficient, quality and quantity to complete the job.

Screw pipe fittings are widely used because of its multi-type, multi-standard features, in different occasions, the screw connector can fully play a role. And processing steps easy to learn, do not need complex machine technology to assist. Not only can reduce labor costs, but also reduce the cost of machinery. For industrial operations is very useful in terms of materials. In life, the screw connector because of its simple operation and high availability, and by the people of all ages.

Advantages and Disadvantages of Hydraulic Pipes

Advantages of hydraulic pipe

Hydraulic pipe is the biggest advantage and electrical rotation and mechanical rotation compared to the way it is more flexible and convenient, not only light weight, the volume is also very small, very easy to manipulate them. Secondly, it can automatically achieve overload protection, a wide range of stepless speed regulation, the reaction rate is also very impressive.

The shortcomings of hydraulic pipe

As the hydraulic pipe in the use of fluid flow resistance and leakage are relatively large, so the efficiency can be very low, we have to be properly handled in order to ensure leakage will not contaminate the site. If improper operation, may also cause a fire or other accident. Second, the hydraulic pipe manufacturing components compared to the general component is more expensive, because of its high accuracy.