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2. Tieback (geotechnical) - Wikipedia

   en.wikipedia.org/wiki/Tieback_(geotechnical)

   The magnitude of total anchor force required in the tieback can be determined by analyzing the soil and groundwater properties as well as sources of external loads applied to the system. [ 2 ] The bond length of the tieback must extend beyond the potential critical failure surface of the soil.

3. Japanese sword - Wikipedia

   en.wikipedia.org/wiki/Japanese_sword

   Here is a list of lengths for different types of blades: [13] Nodachi, Ōdachi, Jin tachi: 90.9 cm and over (more than three shaku) Tachi, Katana: over 60.6 cm (more than two shaku) Wakizashi: between 30.3 and 60.6 cm (between one and two shaku) Tantō, Aikuchi: under 30.3 cm (less than one shaku)

4. Miscaroo - Wikipedia

   en.wikipedia.org/wiki/Miscaroo

   [3] [4] At full power, Miscaroo was designed to break 1.2-metre (3.9 ft) level ice with a speed of 3–4 knots (5.6–7.4 km/h; 3.5–4.6 mph). The icebreaking was further assisted by an active hull lubrication system incorporated to the OmniThruster unit: nozzles along the forward half-length of the vessel could be used to eject air/water ...

5. Anchor bolt - Wikipedia

   en.wikipedia.org/wiki/Anchor_bolt

   They can be further divided into two categories: [3] torque controlled: the anchor is inserted into the hole and secured by applying a specified torque to the bolt head or nut with a torque wrench. A particular sub-category of this anchor is called wedge type. As shown in the figure, tightening the bolt results in a wedge being driven up ...

6. Rail fastening system - Wikipedia

   en.wikipedia.org/wiki/Rail_fastening_system

   Rail anchors, also called anticreepers, are spring steel clips that attach to the underside of the rail baseplate and bear against the sides of the sleepers to prevent longitudinal movement of the rail, either from changes in temperature or through vibration. Anchors may be attached and removed either by hand with hammers, or by an anchor machine.

7. Offshore embedded anchors - Wikipedia

   en.wikipedia.org/wiki/Offshore_embedded_anchors

   A deep-penetrating anchor (DPA) is conceptually similar to a torpedo anchor: it features a dart-shaped, thick-walled, steel cylinder with flukes attached to the upper section of the anchor. A full-scale DPA is approximately 15 metres (49 ft) in length, 1.2 metres (4 ft) in diameter, and weighs on the order of 50–100 tonnes (49–98 long tons ...