Field Pressuremeter Soil Testing Equipment
Standard:
ISO 22476-4, ASTM D-4719-00
Description:
The pressuremeter test is an in-situ testing method used to achieve
a quick measure of the in-situ stress-strain relationship of the
soil. In principle, the pressuremeter test is performed by applying
pressure to the sidewalls of a borehole and observing the
corresponding deformation.
The pressuremeter consists of two parts, the read-out unit which
rests on the ground surface, and the probe that is inserted into
the borehole (ground). The original Ménard-type pressuremeter was
designed to be lowered into a performed hole and to apply uniform
pressure to the borehole walls by means of infl atable fl exible
membrane.
As the pressure increases, the borehole walls deform. The pressure
is held constant for a given period and the increase in volume
required for maintaining the constant pressure is recorded. A
load-deformation diagram and soil characteristics can be deduced by
measurement of the applied pressure and change in the volume of the
expanding membrane.
From the test readings (volume variation based on controlled
pressure), a stress-strain curve can be obtained,in the case of
plane deformation, which yields :
• the Ménard Pressuremeter modulus
• the creep pressure
• the Menard limit pressure Soil Testing Equipment
Product features:
1. The use of high-precision gas free pressure regulating valves
makes the pressurization process more accurate, stable, and
intuitive, thereby ensuring the accuracy of test data.
2.The unique design of the water circulation system greatly
accelerates the water injection and return process of the pressure
gauge, greatly shortens the test time, improves the working
efficiency, and effectively improves the instrument's control
accuracy of the volume of water.
3.The pressure gauge adopts a three-chamber structure, consisting of
a measuring medium chamber and two protective chambers. The
function of the protective chamber is to extend the length of the
soil layer tested on the hole wall; It supports the expansion of
the measurement chamber, reduces the influence of the end of the
measurement chamber, and produces uniform pressure on the hole
wall, thereby simplifying the complex spatial strain to an
approximate plane strain state.
4.The pressure gauge adopts spiral cloth winding to strengthen the
protective outer membrane, which is applicable to a wider range of
soil layers, greatly reducing the consumption of elastic membrane,
and reducing the number of on-site replacement of elastic membrane
5. The catheter adopts customized 3-color multi bundle tube, and
the inner tube is made of imported PA-11 fiber (high pressure
resistant material). It has the advantages of high pressure
resistance, small volume change, and is not susceptible to
temperature changes. The outer skin is made of polyurethane, which
has the advantages of wear resistance and earthquake resistance.
The conduit connection adopts a ferrule sealing ring type
connection, which is simple to install and has good sealing
performance.
Specification:
| Name | Specification |
| BTU-3 | BTU-4 | BTU-5 | BTU-5 (1) |
| Menard pressuremeter | Structure | Three-chamber |
| Nominal outer diameter | ø60mm | Ø74mm |
| Measuring chamber length | 250mm | 210mm |
| Total length | 800mm | 840mm |
| Accuracy | Min.reading of pressure gauge | 0.005Mpa |
| Measuring range | 400mm |
| Error | ≤±1% |
| Other | Max testing capacity | 2.5Mpa | 4.0Mpa | 5.5Mpa |
| Main unit dimension | 830×360×220mm |
| weight | 28kg |
About Us:
260 workers, 25000 ㎡ non-dust workshop, 16 years experience, SGS &
INTERTEK certificated, one hour reach Tianjin port, this is how we
keep good quality and competitive prices for global valued
customers.
Our main products cover Universal testing machine, Compression
testing machine, Soil,Concrete,Cement Mortar,Aggregates Rocks,
Asphalt Bitumen, NDT,Pavement ,Paint,Ceramics,Drilling Fluids,
Geotextiles, Textiles, Environmental,General Equipment,Universal
Testing Equipment.BTUTEST is exporting its products to more than 60
countries by offering its services through its authorized
distributors and representatives.
Our main customers are private and research testing laboratories,
road and general contractors, concrete and cement manufacturers,
asphalt manufacturers, government authorities, ministries,
engineers, consultants and re-seller. We also cooperate with
accredited research centers and the most important universities in
the world.we can supply more top quality product and service for
more customer’s.
Our Advantage:
Q1: What is your warranty ?
A: 12 months product warranty, but lifetime for services.
Q2: How-to video provided ?
A: Yes. If required, our engineers will record a specialized how-to
video for you.
Q3: Are your company a trading one or a factory?
A: Yes, we are a manufactured factory & trade (integration).16
years focusing on test instruments field. warmly welcome to visit
our plant (factory), we also support OEM and ODM.
Q4: After an order is placed, when to deliver?
A: Generally about 10 days. If we have inventory, we can arrange
shipment within 7 days. Please be aware that our production lead
times depend on specific items and item quantities.
Q5: What about the after-sales service and product’s quality?
A: 12 months warranty. After the warranty, the professional
after-sale service team will provide perfect technical support. And
help the customer solve problems encountered while using our
product, handles problems and complaints professionally and timely.
Each instruments
