公开(公告)号：US20190316467A1

公开(公告)日：2019-10-17

申请号：US16445733

申请日：2019-06-19

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Mieczyslaw RATAJ ,  Peter YOUNG ,  Bradley DARLINGTON

IPC: E21D21/00

Abstract: A friction bolt assembly to frictionally engage a bore formed in rock strata. The assembly includes an elongate tube and an expander mechanism acted on by an anchor mechanism via an elongate bar or cable. A retainer mechanism is mounted to act between the bar or cable and the tube to prevent ejection of the bar or cable from the assembly should the bar or cable break.

公开(公告)号：US20180347358A1

公开(公告)日：2018-12-06

申请号：US15779536

申请日：2016-11-25

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Mieczyslaw RATAJ ,  Peter YOUNG ,  Bradley DARLINGTON

IPC: E21D21/00

CPC classification number: E21D21/004 ,  E21D21/0033 ,  E21D21/006 ,  E21D21/008 ,  E21D21/0086

Abstract: A friction bolt assembly to frictionally engage a bore formed in rock strata includes an elongate tube and an expander mechanism acted on by an anchor mechanism via an elongate bar or cable. A retainer mechanism is mounted to act between the bar or cable and the tube to prevent ejection of the bar or cable from the assembly should the bar or cable break.

公开(公告)号：US20160025608A1

公开(公告)日：2016-01-28

申请号：US14765725

申请日：2014-02-05

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Bradley DARLINGTON ,  Marten Bjorn KARLSSON ,  Mieczyslaw RATAJ

IPC: G01N3/303 ,  F16B7/04 ,  E21D21/00 ,  G01L5/00 ,  G01M7/08

CPC classification number: G01N3/303 ,  E21D21/0093 ,  F16B7/0426 ,  G01L5/00 ,  G01M7/08

Abstract: A connector, an associated dynamic testing system and method for testing rock bolts or rock anchors in situ. The connector is attached to a rock bolt/anchor and supports a hanging load via a shaft. The connector has a body of two halves retaining upper first and lower second connectors having respective curved surfaces. Each of the two halves has a curved inner surface allowing limited relative rotational movement of the first and second connectors relative to the two halves when a load is applied. A load cell and accelerometer register the load applied to the rock bolt/anchor through the connector and any resulting movement of the rock bolt/anchor.

Abstract translation: 连接器，相关联的动态测试系统和用于原位测试岩石锚杆或岩石锚杆的方法。 连接器连接到岩石锚杆上，并通过轴支撑悬挂载荷。 连接器具有保持上部第一和第二连接器的两个半体的主体，其具有相应的弯曲表面。 两个半部中的每一个具有弯曲的内表面，当施加负载时允许第一和第二连接器相对于两个半部的有限的相对旋转运动。 称重传感器和加速度计记录通过连接器施加到岩石锚杆/锚杆上的载荷，以及岩石锚杆/锚固件的任何结果的运动。

公开(公告)号：US20200318479A1

公开(公告)日：2020-10-08

申请号：US16766959

申请日：2018-11-12

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Mieczyslaw RATAJ ,  Bradley DARLINGTON ,  Peter YOUNG ,  Warren ROACH

IPC: E21D11/00 ,  E21D21/00

Abstract: A rock bolt and meshing assembly is arranged for installation of a meshing sheet against a surface of rock strata. The rock bolt includes an adapter having a first portion connectable to a trailing end of an elongate shaft of the rock bolt and means configured to receive and mount a meshing clamp to overlay a second section of meshing sheet against an already laid first section of meshing sheet.