Hohhot acoustic tube construction process of the test tube in order to facilitate reliable principle, using the first production of rebar splicing, mounting, and then connect the positioning after Reinforced with steel cage is installed at the end of the first cage welded into position, the upper part of the wire bundle, tying together every 2-3 meters. Ensure the test tube is positioned vertically, which will help pile testing, and to prevent the concrete conduit collisions. First, Hohhot acoustic tube test tube test tube length to fixed-length reinforcement cage length prevail, bottom pipe should be slightly longer than 20-30 cm steel cage bottom two, Hohhot acoustic tube test tube test tube bottom end of the cage to install pipe with activity A clamp according to the actual location of the construction, and then welded to the steel cage to hold the test tube, to prevent floating and rotating three, Hohhot acoustic tube test tube in the cage installed after the installation of the reinforcement cage forming test tube in receivership, detection point to the U-tube reinforced active position, can slide up and down, side jack S-type steel hook positioning, to be installed steel cage, remove the S-hook, the test tube slide, insert the end of the tube, and then use the wrench to tighten the nut fixed, the middle every 2-3 meters tied with wire, fixed. So four, Hohhot acoustic tube test tube mounted in the top of the cage after cage of reinforced roof installation, test tube fittings all finished, make sure to tighten firmly, must be filled with water in the test tube, screw on the final head, this process all operations complete five, Hohhot acoustic tube test tube in the pile of half-cage installation test tube welding position can be segmented according to the actual situation, to facilitate steel hoop position, the situation in the absence of reinforcement cage can also be installed, compared with other connectors can save three bars, convenient and safe