Device name

Falling ball tester for geotechnical mechanical

Model

SFB-RMT

Patent name: Method for improving acceleration

test of portable deflection instrument (H-FWD) by

using acceleration sensor

Patent name: Field test method and device for mechanical

properties of falling ball geotechnical materials

Patent No：ZL200510021852.X

Patent No：ZL200810087044.7

Related patents

This technology is based on the Hertz impact theory and Vesic cavity

expansion theory, which can test the deformation modulus during

compression and rebound, so as to estimate the corresponding

deformation index (material deformation modulus, strength index) of

rock mass materials.

Test principle and method

Achievements and

technical characteristics

Test method for deformation characteristics of rock and soil materials based on

Hertz impact theory;
Test method for strength characteristics of geotechnical materials based on

Vesic cavity expansion theory;
It can quickly test the on-site mechanical properties of a wide range of

materials from soft clay, sand, gravel to cement stabilized soil, and asphalt

concrete, which has obvious advantages compared with existing PFWD / EVD.

product description

This equipment is specifically designed to detect the rebound modulus

of the roadbed and pavement. It is easy to use and has powerful

graphics processing functions. In addition, the device supports the

database system CI-DBS, and can be connected to the BQIM system to

realize the detection result visualization.

Direct testing of material deformation

/ rebound modulus
In line with the new road design and

regulations

适用土质材料广泛

Easy testing and

high efficiency

High test accuracy

and repeatability

Test items

Test object: excavation / filling engineering, geotechnical materials
Test content: Geomechanical characteristics (material deformation

modulus, rebound modulus, strength index K30, deflection,

CBR

Falling ball type

resilient modulus tester

SFB-RMT

Corresponding parameter set not found, please add it in property template of background

1	Provide database management services, and can be docked with BIM system, to achieve the visualization of test results model; with the database linkage, can carry out test results cloud AI (artificial intelligence) analysis.
2	operating system：windows
3	Waveform Noise and Signal Processing Technology: Mobile Smoothing, BPF, EMD, Integral Processing, Average Processing
4	Deformation Index Testing Method: Based on Hertz Impact Theory
5	Channel number: 2 channels (VMC technology can be extended to multiple channels), trigger channels and receive channels are interchangeable
6	Data acquisition: support touch, wireless dual mode; support single, continuous dual mode sampling
7	working temperature：0～45℃
8	Sampling accuracy: floating-point interpolation compensation to 24 bits
9	Maximum acquisition frequency: 500KHz, adjustable
10	Maximum acquisition points: 20,000, adjustable
11	Maximum/Minimum Voltage Display：10V/0.0001V
12	Display: LCD 1280*800
13	Result Data Statistical Processing: Equivalent Value Computation, Simple Average, Deviation and Elimination of Abnormal Data
14	Deformation Index Testing Contents: Compression Modulus and Rebound Modulus
15	Maximum test depth：0.3m
16	Location information: supporting GPS positioning

Instrument mainframe

Drop ball

Cable

Host

A Highway Project in Japan

A highway in Shanxi

An Airport in Japan

Zhejiang 320 National Highway. Fuyang Section

暂未实现,敬请期待

Contec

Falling ball type resilient modulus tester

Patent No：ZL200510021852.X

Patent No：ZL200810087044.7

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