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    Low strain detector for foundation pile

    Device name
    Low strain detector for foundation pile

    Patent name: Method for reducing residual signal of shock elastic

    wave to identify reflected wave signal

    Patent No:ZL200910082851.4

    Related patents


     Instrument selection


     The low-strain reflected wave method is to detect the integrity of the

    pile body by analyzing the characteristics of the measured speed

    response signal at the top of the pile, determine the position of the

    pile body defect and the degree of influence, and determine the

    embedment of the pile end and the type of integrity.

    Test principle and


     Active (with cap) foundation piles:


     Sound foundation pile 

     Defective foundation pile


     Excitation / receiving method 

    Reflected signal

     Foundation piles during construction:


    Test object: various types of foundation piles in civil and construction engineering (including

    foundation piles in construction and active foundation piles);

    Test content: New foundation pile (the head of the pile is exposed): length, integrity (degree

    of defect and location range);
    Foundation piles in service (with cap): length, integrity.



    Test items

    product description



    Sichuan Shengtuo Testing Technology Co., Ltd. provides foundation pile low strain detector. This equipment is based on the low-strain reflected wave method, and is widely used in the integrity testing of column structures such as new foundation piles, active foundation piles, wharf pillars and high bridge piers in various civil and construction projects. It has the characteristics of high test efficiency and good reliability, and the use of stable and reliable imported components makes the detection accuracy of the length and integrity of the foundation piles guaranteed.






    Achievements and

    technical characteristics



    Can test foundation piles under existing caps;

    The test accuracy of the length and integrity of the foundation pile is greatly improved.


     Foundation pile low strain detector 


    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 Channel number: 2 channels (VMC technology can be extended to multiple channels), trigger channels and receive channels are interchangeable
    4 Waveform noise and signal processing technology: eliminating residual signal of excitation; moving smoothing, BPF, EMD, integration processing, average processing
    5 Spectrum analysis:FFT、MEM
    6 Data acquisition: support touch, wireless dual mode; support single, continuous dual mode sampling
    7 Platform: Portable Platform
    8 Testing object: exposed pile at cap end
    9 Sampling accuracy: floating-point interpolation compensation to 24 bits
    10 Maximum acquisition points: 20,000, adjustable
    11 Maximum/minimum voltage can be displayed:10V/0.0001V                                                                                                        
    12 Maximum acquisition frequency: 500KHz & nbsp; adjustable
    13 working temperature:0~45℃
    14 Testing Physical Quantity: Acceleration (Integrable into Velocity and Displacement)
    15 Testing Contents: Length, Integrity, Rigidity and Bearing Capacity of Foundation Piles
    16 Test range:0.2~20m
    17 Result Data Statistical Processing: Simple Average, Deviation and Elimination of Abnormal Data
    18 Location information: supporting GPS positioning



    Remote control pen





    Vibrator hammer



    Exciting cone



    Prestress Detection of Slope Anchor Cable in Fujian Forestry Survey and Design Institute

    Detection of Prestressed Anchor Bolt of Prefabricated T-Beam in a Bid Section of Qingzhi Expressway in Guizhou Province


    Defect Detection of Foundation Pile under Gansu Bridge Pier




    Device name
    Bolt quality detector
    Device name
    Steel guardrail column buried depth shock
    Device name
    Foundation pile acoustic transmission detector
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