标准摘要
[中文适用范围]： ISO 22476 的这一部分规定了钻孔千斤顶测试的设备要求、执行和报告。 注：ISO 22476 的本部分满足钻孔千斤顶测试的要求，作为根据 EN 1997-1 [1] 和 EN 1997-2 [2] 进行岩土勘察和测试的一部分。 ISO 22476 的这一部分规定了在足够坚硬的地面上进行钻孔千斤顶测试的程序，以免受到钻孔操作的不利影响。 两个直径圆柱形钢加载板放置在地下并通过压力打开。 测量并记录施加到探头上的压力以及相关的探头开口，以获得预期设计应力范围内的地面应力-位移关系。 ISO 22476 的本部分适用于 ≤ 100 m 的测试深度以及陆地或海上测试。 [外文原描述]： ISO 22476-7:2012 specifies the equipment requirements, execution of and reporting on borehole jack tests. It specifies the procedure for conducting a borehole jack test in ground stiff enough not to be adversely affected by the drilling operation. Two diametral cylindrical steel loading plates are placed in the ground and opened by pressure. Pressure applied to, and associated opening of, the probe are measured and recorded so as to obtain a stress-displacement relationship of the ground for the range of the expected design stress. ISO 22476-7:2012 applies to test depths of < 100 m and to testing either on land or off-shore.
英文名称Geotechnical investigation and testing — Field testing — Part 7: Borehole jack test