目前海内声测管设计是用?57*3.5的无缝管加套管现场焊接的方法来连接，这种方法缺点是：① 本钱高（每米﹥30.00元）；② 施工操纵不便；③ 现场焊接密封性不能保证；④费时，雨天不能施工；⑤管壁厚，对超声波透过有一定影响；长处是：刚性好。
    灌注桩薄壁声测管已在实际施工中使用多年，效果明显，推行这项技术每年全国可节约几万吨钢材，经济效益明显，符合环保节能的建设理念。在没有同一的技术尺度的情况下有的项目为节省本钱，使用过薄或壁厚与桩基深度不相符的声测管，从而造成声测管变形、堵管等事故，为此有必要制订一个同一的薄壁声测管技术尺度加以规范。

At present of collecting tube design is to use? 57 * 3.5 seamless tube and casing spot welding way of connection, this method shortcomings are: (1) high capital (st13 of 30.00 yuan per meter); (2) construction control inconvenience; (3) the welding sealing cannot guarantee; (4) time-consuming, rainy days can't construction; Have certain influence to the wall thickness, (5) of ultrasonic through; Strengths: good rigidity.
Pile sound thin-walled tube has been used for years in actual construction, the obvious effect, promote the technology can save the country every year tens of thousands of tons of steel, economic benefit is obvious, accord with environmental protection and energy saving construction concept. In the absence of the same technical measure of some project to save money, used or thin wall thickness and depth of the pile foundation is not consistent with the test tube, acoustic detection tube deformation, causing stuck pipe and other accidents, therefore it is necessary to develop a sound thin-walled tube technology measure of the same specification.