| 摘要 |
A retaining wall block (1) has parallel top and bottom faces, a front face (4), a rear face (5), first and second side wall faces (6, 7) and a vertical plane of symmetry (S) extending between the front and rear faces (4, 5). The block (1) is formed as a body portion (8) including the front face (4), a head portion (9) including the rear face (5) and a neck portion (10) connecting the body portion (8) and the head portion (9). The body, head and neck portions (8, 9, 10) each extend between the top and bottom faces and between the first and second side wall faces (6, 7). An opening (13) extends through the neck portion (10) from the top face (2) to the bottom face, dividing the neck portion (10) into first and second neck wall members (14, 15) extending rearwardly from the body portion (8) to the head portion (9). First and second pin holes (16, 17) are each disposed in the body portion (8) and open onto the top face (2), where the first and second pin holes being configured for receiving a pin with a free end of the pin protruding beyond the top face. |
