Rock drilling rigs and micropiles from China manufacturer

Price:	2.5 USD
Payment Terms:	T/T,L/C,D/A,D/P,WU
Place of Origin:	Sichuan, China (Mainland)


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Product Detail

Model No.: R25N--T76S

Production Capacity: 4500000 Meter/Meters per Ye...

Delivery Date: 20 Days

Usage: Rail, stabilization and und...

Material: Steel, S460NH

Standards: ASTM, FHWA, DIN 4128, EU Co...

Surface treatment: Galvanized,epoxy

Type: Drill Pipe

Means of Transport: Ocean,Land,Air

Packing: Bundle

Brand Name: ONTON

Certificates: ISO,CE

Test Report: SGS

Similar Pile Drilling: CTS/TITAN, Helitech

Machine Type: Rock/Soil Drilling Tool

IBO: Injection Boring
The piling solution for difficult ground conditions
No harmful vibrations or noise
Easily installed in confined spaces

Micropiles and Rock Drilling Rigs

A micropile Application

Introduction

Micropiles, sometime are called as minipiles, anchor piles or root piles, are widely used in foundations constructions.

Especially for underpinning or emergency repairs, it is an effective method to provide reinforcement.

Micropiles normally consist of high-strength, small-diameter threaded steel bar. After the injection of cement, micropiles can supply 1,000 tons strength and more. In the same time, the rough, profiled surface of the grout body also transfers tension and/or compression loads to the deep ground.

Larger diameters of all thread solid rebar are most popular in the applications of micropile reinforcement. Meanwhile, hollow bars are also increasingly used since its rapid installation and adaptability of collapsing soil conditions.

ONTON hollow bar micropiles comply in Europe with DIN 1054:2010-12 (Subsoil-Verification of the safety of earthworks and foundations), Euro code2 and EN14199/10080 standards and in America with FHWA-NHI-14-007(2015). The steel material of the hollow bar, as well as the thread deformations comply with ASTM F432 and A615.

Basic Technique of Hollow Bar Micropiles

The piles are formed from a fully threaded steel bar with a hollow core which is drilled and simultaneously grouted into soils without a casing, typically employing rotary percussive skills.

How to Install Micropile

The installation procedure for mircropile is similar to bored piling it's using drilling method.

1. Drilling and Flushing

2. Withdrawing Drilling String

3. Inserting Steel Reinforcement and Grouting

4. Completed Micropile

5. Reiforcement Result Test

Advantages

Small lightweight equipment

Low noise and vibration

Suitable for tension loads

Minimal site preparation

Rapid & efficient installation, high output

High capacity capabilities in limited access areas

Works in all soil types, ideal for collapsible soils

Cased or uncased

Technical data

Specification	From	To
Bar diameter	25mm	127mm
Drill bit diameter	42mm	300mm
Pile loads		Up to 1500kN
Height of rig	2.5m	6.0m
Length of rig	1.8m	5.4m
Operating distance from face of wall to centre line of pile	450mm	500mm

Micropiles and rock drilling rigs

T thread Hollow Bar Micropiles - suitalbe for Titan systems

Micropiles types

Cased

Uncased

Hollow Bar

Micropiles and rock drilling rigs

Hollow Bar Micropiles

Micropiles are available in multiple varieties, in order to meet special requirements, for example on public projects requiring certifications, ONTON also offers micropiles in specific certified grades including carbon steels and special alloys. Related test reports and certificates please contact us.

Contact us:

WhatsApp: +8613095360861

Email: neolau@ontonbolt.com