2016年07月29日

Active supporting-Soil nail


Soil nailing as an active supporting technology which is developing rapidly in recent years , suitabled for similar reinforcement and deep foundation pit supporting.
Soil nailing is suitable for the soil which can meet the requirement of certain temporary stability capacity since the excavation of the underground water level in the final the following or after precipitation.
The mechanism of soil nailing process in composite foundation can be summarized as the following:
(1) Coupling beam frame.This effect is made by the stiffness and strength of soil nail and its space distribution in the soil body.It has the restriction effect of soil deformation in the soil nailing process, and composite soil as a whole.
(2) The mechanism of share.
In the composite soil, soil nail and soil body share the external load and gravity stress of soil.During the soil nailing process,due to soil nail has higher tensile, shear strength as well as the bending stiffness which the soil body can't compared, so when the soil into the plastic state, the stress gradually transfers to the soil nails .When soil cracking, the effect of soil nailing share is more outstanding.
(3) The stress transmission and diffusion effect in the soil nailing process.
Under the same loads, the strain levels of soil nail reinforcement in the body less than the strain level of plain soil slope body , and delayed crack formation and development in the soil nailing process.
(4) The deformation of slope constraint.
Concrete panels integrated with soil nail reinforced which set on the surface of the slope reinforced become an organic whole is play an important part of effective role in the soil nailing process.
When you need the right wholesale soil nail for the lowest installed cost or simply the lowest possible cost or an order in the magnitude of millions of wholesale soil nails,Sinorock is your soil nail company partner in wholesale soil nailing success.
Sinorock can handle both large quantity soil nail system orders in the hundreds of thousands for the manufacturing industry and small orders for local repair shops. We service the mining industry, tunneling, slope foundation, hydroelectric, off road equipment dealers and
manufacturing companies. Our customer service area is all of Nevada, including Las Vegas, and Elko, as well as Northern California.
Sinorock soil nailing system is widely used in many fields.In return, it has won lots of praise from our various clients.As you would expect, our extensive Soil nailing system processing facilities are world-class. Our expertise and advanced specialist skills have ensured the outstanding success of a diverse range of high-profile projects around the globe, cementing our reputation as the number one supplier in the geotechnical anchorage industry.
http://tblo.tennis365.net/soilnailing/2016/07/29/analysis-of-mechanical-characteristics-of-soil-nails/  

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2016年07月25日

High tensile soil nail

The self drilling soil nail system has demonstrated that in the majority of medium strength soils ultimate loads in the range of 250 to 400 tonne can repeatedly be achieved. The system also has the advantage of being appropriate for use in environments previously considered unsuitable for traditional ground anchors.
The Sinorock's soil nail system ensures a fast and efficient method of application with a superior strength and rigidity that we believe is the best available.Sinorock is specialized in design for excellent soil nail system and is recognized as an industry authority in these fields.Sinorock foremost strength is its innovative approach to solving unique engineering problems.Sinorock has extensive experience in a broad range of anchoring products and solutions for infrastructure projects, heavy engineering construction and commercial building work.
The high quality soil nail system of Sinorock is today in every concrete, building and infrastructure. The company holds together the framework that ensures the safety of each structure.
An application in tunneling is to use Sinorock soil nails as pattern bolts to support an excavation. The bolting pattern depends on the size of the excavation and qualities of the rock mass.
In mining, common applications like roof and hanging wall bolting have adopted Sinorock soil nails as a rapid, safe and high-performance device.
With various capacity ranges the Sinorock soil nails can be used in most reinforcement and support applications. They can also be used either in mines or in civil engineering applications, and their specific mechanical properties will provide the requested safety and performance.
  

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2016年07月18日

Soil nail reinforce structures

Adopting the method of self drilling soil nail with sprayed concrete, drilling, grouting and anchoring function can combine together, safe, high-efficient and easy to operate.
Building railway network, tunnel construction is quite convenient for saving cost. And self drilling soil nail is an efficient way to reinforce structures. It combines drilling, grouting and anchoring together, bonds to soil layer, stabilizes stratum and then reaches to the effect of supporting projects.
The most common application of soil nails is in Shotcrete-Soil Nail retaining walls. Shotcrete-Soil Nail retaining walls are constructed from the top down using five foot vertical cuts.
It is commonly believed that with the introduction of soil nails to slopes, this new combination of elements possesses higher shear strength than the original soils. In the context of Rankine’s active state, soil nailing serves to provide horizontal restraint to guard against active failure.
Designed to be installed horizontally or at a slight angle (20-25°), soil nails provide reinforcement for earth retention structures within excavations and on slopes in top-down construction. Installed into a drilled hole and used in combination with plate washers and shotcrete, soil nails are effective as temporary or permanent geostructural solutions.
Soil nails are installed in applications such as bridge abutments to stabilize the embankment and provide structural support for a shotcrete wall. In a permanent application, each soil nail is triple corrosion protected.
Soil nail provides a resisting force against slope failures. Its construction process is faster than other similar methods. The construction procedure starts, drilling into the soil, where the nail, steel bar, is going to be placed. After the drilling has been completed, exact depth must be provided by the geotechnical engineer, the nail must be inserted into the drilled hole.
Then, it must be grouted into the soil to create a structure similar to a gravity wall. After placing the nail, a shot-Crete layer is usually placed as a facing material, to protect the exposed nail, and then other architectural options are placed over the shot-Crete, creating an aesthetic finish to the project.

http://www.pixlbit.com/blog/13653/international_leading_soil_nail_supplier_for_constructions_sinorock

  

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2016年07月08日

Safe - Soil nail

Soil nailing is a technique used to bring soil stability in areas where landslides might be a problem. Soil nail can prevent landslides by
inserting hollow bar or steel reinforcement bar into the soil and anchoring them to the soil strata. It is called Soil Nail , because it’s like having a nail being hammered into the soil, where the nails, are the steel bars.
Depending on the complexity of the work, soil nailing can be ranging between $80 per square feet up to $200 per sf. Some contractors will use a software called Snail Plus to determine their soil nail design and complete preliminary assumptions on the soil nailing.Soil nailing technology is an emerging retaining support, firstly used in tunnel and landslide management. The compound of soil layer and soil nail is used to resist soil pressure and other additional loads, then protect excavation face’s stability. While spraying concrete to provide constraining force for deformation among soil nailing.
At present, many supporting methods have great effect in good geological conditions, while in soft and complex conditions, such as crushing, high ground stress in tunnels with great deformation, the challenge for these supporting method is quite big. So soil nailing support at home and abroad is moving to the effect of improving anchoring force, efficiency of support and expanding application range.

Soil nailing support - It ensures the anchoring effect in complex ground conditions. It’s safe, reliable and efficient.This kind of product is suitable for broken rock, loose soil and conditions which are difficult to drill holes, such as fracture zones, decayed rock,gravel, sandy gravel, backfill ground.The soil nail system are an efficient, economical, and simple solution to enhance reinforcement for mining,tunneling,hydroelectic and civil construction.Overall Soil nail is superior for the tunnel construction and it gives enhanced suitability for all types of geographical cuts with using variety and suitability of bolts.
  

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2016年07月05日

Strong support-soil nail

The scale of construction becomes bigger and the deep foundation pit projects become more. Several experts developed and formed the leading innovative technology of soil nailing support system in deep foundation pit project, which has brought good social and economic benefits.
Soil Nailing is an earth retention technique that can be used as a remedial measure to treat unstable natural soil slopes, or as a technique to allow the safe over-steepening of new or existing soil slopes. The technique involves using grouted tension-resisting steel elements (nails) that can be designed for either temporary or permanent support. The walls are typically constructed from top down.
Generally, 3 to 6 feet of soil is removed from the top of the intended excavation.
Near-horizontal holes are drill into the exposed face at an average of 3 to 6 foot centers. Tension-resisting steel bars are put into the holes and grouted. A drainage system is set up on the exposed face, followed by the application of reinforced shotcrete (pneumatically applied concrete) facing. Compact face panels have also been used as an alternative to shotcrete. Bearing plates are then attached to the heads of the Soil Nails. The soil at the base of the first stage is then extracted to a depth of about 3 to 6 feet. The installment process is recurring until the design wall depth is reached. The completed Soil Nails create a zone of reinforced ground.
Soil Nailing may also be used to maintain retaining walls or existing fill slopes (embankments and levees), provide earth retention for excavations for buildings, plants, parking structures, deep cuts, and tunnels.
Sinorock Soil nailing support system are built and designed in compliance with the standard ISO, and as a result, we offer superior in-house expertise in Soil nailing support testing (both static and dynamic). This is carried out in the earliest possible stages of the project toenable the client and Sinorock designers to adjust and refine Soil nailing support construction pro-actively, rather than re-actively, later in the project.  

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