Qingdao Contact 15732788663 0317-8801362 QQ 537044773 Fax 0317-2207153 Contact: Chen Acoustic Pipe is a probe into the interior of the channel when the pile piles ultrasonic testing method. It is a pile of ultrasonic detection system is an important component. As such. Is proportional to the concentration of the electrochromic layer acoustic tube length and gases. Discoloration observed length can be detected gas concentration in the air is important purposes yes. Different concentrations of the different means that the extracted amount of oxygen in the air. When there are a lot of oxygen when the (higher concentration) of oxygen molecules will move forward very far (white area is very long) first. Acoustic tube equipped with a detection reagent (that is, the explanation of the above questions: Why acoustic tube will show a color change) let us have oxygen acoustic tube for example. Acoustic tube tightly filled with detection reagents. Detection. Air is sucked into the gas collector acoustic tube. Molecular oxygen in the air and the detection reagent reaction reagent from black to white. However, when minimal oxygen (lower concentration). Will soon run out with repercussions across the reagent. The area is very short so white it's embedded in the pile and the arrangement of the way of the cross section in the pile. Will directly affect the test results. Why is the length of the color layer can be directly proportional to the concentration represents the concentration of the target gas it is important acoustic pipe length and the electrochromic layer of gas. Discoloration observed length can detect the concentration of the target gas in the air. Field test preparation should meet the following requirements: a pile of subjects very mixed pile of soil strength shall comply with the relevant requirements. 2. Place the filled water in each acoustic tube. Do not block the tube. 3. Using the calibration method to determine the instrument system latency. 4. In the top of the pile ready to measure the corresponding net acoustic tube wall spacing. 5. Check the transducer probe or instrument in good condition. Pile Engineering Test contain? In addition to checking the position of the pile. Size. Distance. Quantity. Type. Verification of selected construction machinery. Home energy piles site conditions and project requirements. Verification of pile geotechnical properties of the force holding layer. Depth and ups and downs. And outside of the pile tip into the bearing layer depth. Should normally include pile strength. Deformation and geometry by three power conditions. Especially in the former based. (1) the strength of the pile pile strength testing, including testing the structural integrity of the pile and the pile bearing capacity. Pile structural integrity refers to whether the presence of broken pile pile. Necking. Segregation. Mud. Holes. Too thick sediment and other construction defects. Acoustic transmission method is often used. Dynamic test method and core drilling method and other testing. Pile bearing capacity of detection. The most traditional and effective method is static load test. Although this method time consuming and expensive. In engineering practice is still widely used. (2) pile pile deformation deformation required to obtain reliable results through long-term settlement observation skills. And should the settlement of pile groups under long-term loads prevail. General engineering and structural integrity as long as the pile pile bearing capacity to meet the requirements. Pile tip has reached the design elevation. Soil and large uplift did not occur. Can be considered to have been in line with the design requirements. But the important works must be carried out settlement observation. Geometric force conditions (3) geometric force conditions mean pile pile. Pile tilt. Fitting case. Top of the pile and the pile tip elevation control and the like. Because piling in soft soil area or pile displacement caused by excavation or floating is a common occurrence. Shall normally be strictly controlled pile construction process operation. When necessary to deal with the soil caused by the process set pile deformation. Pore ??water pressure and the impact of the project on the adjacent observation