公开(公告)号：US20050042037A1

公开(公告)日：2005-02-24

申请号：US10488676

申请日：2002-09-06

申请人： David Maltby

发明人： David Maltby

IPC分类号： E21D21/00 ,  E21D21/02 ,  E21D20/00

CPC分类号： E21D21/008 ,  E21D21/006

摘要： A yielding rock bolt arranged to be inserted into a hole in a rock surface. The rock bolt comprises a shaft having a widened portion adjacent a first end thereof, arranged, in use, adjacent an inner end of the hole. The rock bolt also includes an anchor member arranged to be secured within the hole in the rock surface. A longitudinal bore is provided in the anchor member to receive a second end of the shaft, the longitudinal bore being of a diameter slightly less than that of the widened portion of the shaft. A rock face engaging means is provided adjacent a second end of the shaft to secure the second end of the shaft adjacent the rock face. Movement of the rock face causes the widened portion of the shaft to be pulled through the longitudinal bore in the anchor member.

摘要翻译： 一种屈服的岩石螺栓，被布置成插入到岩石表面的孔中。 岩石螺栓包括具有与其第一端相邻的加宽部分的轴，在使用中布置成与孔的内端相邻。 岩石螺栓还包括布置成固定在岩石表面的孔内的锚固构件。 纵向孔设置在锚定构件中，以容纳轴的第二端，纵向孔的直径略小于轴的加宽部分的直径。 岩壁接合装置邻近轴的第二端设置，以将轴的第二端固定在岩石表面附近。 岩石表面的运动导致轴的加宽部分被拉动穿过锚定构件中的纵向孔。

公开(公告)号：US06984091B2

公开(公告)日：2006-01-10

申请号：US10488676

申请日：2002-09-06

申请人： David Maltby

发明人： David Maltby

IPC分类号： E21D21/02

CPC分类号： E21D21/008 ,  E21D21/006

摘要： A yielding rock bolt arranged to be inserted into a hole in a rock surface. The rock bolt comprises a shaft having a widened portion adjacent a first end thereof, arranged, in use, adjacent an inner end of the hole. The rock bolt also includes an anchor member arranged to be secured within the hole in the rock surface. A longitudinal bore is provided in the anchor member to receive a second end of the shaft, the longitudinal bore being of a diameter slightly less than that of the widened portion of the shaft. A rock face engaging means is provided adjacent a second end of the shaft to secure the second end of the shaft adjacent the rock face. Movement of the rock face causes the widened portion of the shaft to be pulled through the longitudinal bore in the anchor member.

摘要翻译： 一种屈服的岩石螺栓，被布置成插入到岩石表面的孔中。 岩石螺栓包括具有与其第一端相邻的加宽部分的轴，在使用中布置成与孔的内端相邻。 岩石螺栓还包括布置成固定在岩石表面的孔内的锚固构件。 纵向孔设置在锚定构件中，以容纳轴的第二端，纵向孔的直径略小于轴的加宽部分的直径。 岩壁接合装置邻近轴的第二端设置，以将轴的第二端固定在岩石表面附近。 岩石表面的运动导致轴的加宽部分被拉动穿过锚定构件中的纵向孔。

公开(公告)号：US20130336725A1

公开(公告)日：2013-12-19

申请号：US13995870

申请日：2011-12-21

申请人： David Maltby ,  Neville Hedrick

发明人： David Maltby ,  Neville Hedrick

IPC分类号： E21D21/00

CPC分类号： E21D21/0033 ,  E21D21/0026 ,  E21D21/0073

摘要： A rock bolt is for use in stabilizing a rock face. The rock bolt comprises a body having a plurality of elongate lobes spaced apart by substantially resilient channel means. The rock bolt is further configured to receive expansion means for urging the lobes outwardly to thereby expand the rock bolt for improving a communication with a bore hole in the rock face. Following expansion the expansion means may be removable, the expansion means can comprise any suitably sized hollow or solid bar expansion member. The configuration of the present invention also enables, subsequent to an initial expansion, the resilient channel means to provide a gripping force on any suitably sized member inserted into the internal space. This feature of the rock bolt allows for a mesh plate having an elongate portion to be securely and removably fitted to the rock bolt after the rock bolt has been expanded.

摘要翻译： 岩石锚杆用于稳定岩石​​面。 岩石螺栓包括具有由基本上弹性的通道装置间隔开的多个细长瓣的主体。 岩石螺栓进一步构造成容纳用于向外推动凸角的膨胀装置，从而膨胀岩石螺栓，以改善与岩面中的钻孔的连通。 在膨胀之后，膨胀装置可以是可移除的，膨胀装置可以包括任何适当尺寸的中空或实心杆膨胀构件。 本发明的结构还可以在初始膨胀之后，弹性通道装置在插入内部空间的任何适当尺寸的构件上提供夹持力。 岩石锚杆的这种特征允许在岩石锚杆膨胀之后，具有细长部分的网板被牢固地并且可拆卸地装配到岩石锚杆上。