Ground anchor

　Ground anchor can be divided into anchor piles, anchor points, anchor ingots, drag pits, commonly used in lifting operations to fix the drag rope, cable wind rope, hoist, guide pulley, etc., ground anchor is generally made of steel wire rope, steel pipe, reinforced concrete prefabricated parts, logs and other buried parts buried in the ground.

　　Types of ground anchors

　　Ground anchor is a necessary device for fixing the winch, and the commonly used forms are the following three: 1. pile anchor; 2. balance weight method; 3. pit anchor.

　　Safety technical requirements for anchor production

　　1. The ground anchor used for lifting and hoisting should be made strictly according to the design, and the hidden project records should be made, and overloading should not be allowed when used;

　　2. The anchor pit should be dug into the shape of a right angle ladder, and the angle between the slope and the vertical line should be 15 degrees. The depth of the anchor is determined according to the comprehensive situation of the site;

　　3. The angle between the drag rope and the horizontal surface is generally below 30 degrees, and the outlet point of the anchor foundation pit (that is, the wire rope is exposed to the ground after passing through the soil layer) Is 2.5 times the depth of the pit in front of the pit and within 2 meters on both sides of the foundation pit, and there shall be no trenches, cables, underground pipelines and other structures and temporary trenches;

　　4. No water shall accumulate around the anchor;

　　5. The ground anchor is not allowed to be set in the straight direction along the embedding.