2017年03月13日

Drill Hollow Bar Micropiles

Micropiles , sometime also called root piles or mini piles, are a kind of speciality piles. They are

normally used for underpinning, including high speed railway, bridge building and so on.

The diameter of a micropile is 60 to 200 mm. The diameter is small in comparison with normal piles.
Thus Micropiles systems are allowed in almost any ground condition with equipment smaller than those used for traditional piles.

In general, Micropiles includes the reinforcement, hex nuts, steel casing, steel bearing plates and centralizer.

For Solid Bar Micropiles:

The predrilling is required.
The micropile system is limited to shallow rock, and very stiff throughout soil strata.
Casing is needed in soft soils.
Pre / Post Grouting.
Numbers of equipments.


In contrast, the Drill Hollow Bar Micropiles are more efficient and labor saving in strata

reinforcements:

No need of predrilling, high installation rate.
Self Drilling Hollow Bar Micropiles is available in difficult soil conditions.
No casing required, reduced material cost.
Only need drilling and grout injection.


Learn more about Hollow Bar Micropiles & Accessories at http://www.soil-nailing.com/.

- See more at: http://www.soil-nailing.com/download/  
Posted by soilnailsystems at 15:00Comments(0)TrackBack(0)

2017年01月23日

Soil nail wall for civil

Soil nail walls may not be appropriate for applications where very strict deformation control is
required for structures and utilities
located behind the proposed wall, as the system requires some soil deformation to mobilize resistance. Deflections can be reduced by post tensioning but at an increased cost.
Existing utilities may place restrictions on the location, inclination, and length of soil nails.
Soil nail walls are not well-suited where large amounts of groundwater seeps into the excavation because of the requirement to maintain a temporary unsupported excavation face.
Permanent soil nail walls require permanent, underground easements.
Construction of soil nail walls requires specialized and experienced contractors.
Sinorock® soil nailing system Spiles enable drilled installation, reducing localised disruption and
providing a conduit for grouting. Subsequent grouting assists in the consolidation of the surrounding ground.

Sinorock has long been recognized as a pioneer in the civil engineering and construction industries for developing alternative solutions for conventional structural applications. Our soil nails can be easily and quickly driven with conventional construction tools, little soil disturbance and is considered a low impact solution.

If you are a user of self drilling soil nail, our products are sure to interest you. We are setting new industry benchmarks in the production of self drilling soil nails. Sinorock produces self drilling soil nails to the tightest tollerances & the highest quality standards in the industry. This means, as a customer you get more length (meters) and therefore more finished product per tonne of self drilling soil nails that you purchase. This also means our products cost less to machine than our competitors.  
Posted by soilnailsystems at 17:24Comments(0)TrackBack(0)