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Ground Anchor Production Of Security Technical Requirements
Aug 31, 2017

Anchor anchor, hoisting machine, guide pulley, etc., to anchor the general use of steel wire rope, steel pipe, reinforced concrete prefabricated Pieces, logs and other buried parts buried into the ground made.

Safety requirements for ground anchor production

1. Lifting the use of ground anchor, should be strictly in accordance with the design of the production, and do a good job of hidden engineering records, the use of not allowed to overload;

2. Ground anchor pit should be dug into a rectangular shape, slope and vertical angle of 15 degrees is appropriate. The depth of the anchor is determined according to the general situation of the site.

3. The angle between the tow rope and the horizontal plane is generally less than 30 degrees, the anchor anchor pit outlet point (that is, the wire rope through the soil after the exposed surface) in front of 2.5 times the pit depth and foundation pit on both sides of 2 meters, There must be trench, cable, underground pipes and other structures and temporary trenching;

4. No anchor water around the anchor;

5. Ground anchor is not allowed along the embedded parts along the set.

The anchor is the necessary device for the fixed winch. The common form has the following three kinds: 1. Pile type anchor; 2. Balance weight method; 3. Pit type anchor.

In the form of anchors, there are two types of anchors and horizontal anchors. Pile anchors are suitable for fixed winds with little force and are rarely used in structural hoisting. Horizontal anchor is a few logs (square wood or steel) tied together with wire rope, horizontal placed in the ground anchor pit, one end of the wire rope from the front end of the groove leads to the rope and the ground angle should be equal to the cable wind And the angle of the ground, and then use earthwork backfill tamping. The depth of the roundwood and the number of logs should be based on the size of the anchor force and soil may be, generally buried depth of 1.5 ~ 2m, the force can be 30 ~ 150kN, round the length of 1 ~ 1.5m. When the tension exceeds 75kN, the anchor should be increased on the anchor bar. When the tension is greater than 150kN, the application of columns and wooden walls to strengthen, to increase the lateral resistance of soil

Horizontal anchor installation and use should be noted:

(1) anchor should be buried in the soil hard place, the ground is not wet, no water.

(2) shall not use rotting wood for the anchor, bar tied to the cable, the four corners to use angle steel reinforcement. Wire rope to be tied firmly.

(3) important anchor should be calculated, after the need to carry out the test pull.

(4) buried anchor, should be a detailed inspection before they can be used. The use of a person responsible for the care, if the deformation, should take immediate measures to strengthen

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