How deep is the anti slide pile that must be tested for integrity? , the total length of the pile on

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Summary. 1. Anti-slide piles are generally arranged in the thickness of the landslide body.

It is thin, the thrust is small, and the foundation strength of the rock-socketed section is relatively high.

Highland sections. Anti-slide piles are used to segment the landslide.

When resisting slipping, each section should be mainly arranged in a single row.

If the bending moment is too large, the prestressed anchor pull pile should be used.

2. The length of the anti-slide pile pile should be less than 35m. For slippery.

For landslides with buried depths greater than 25m, anti-slide piles are used.

When resisting slippage, its feasibility should be fully demonstrated.

3. The spacing of anti-slide piles (middle to center) should be 5

10m。The embedded section of the anti-slide pile shall be embedded in the slide bed, which is about 1 3 2 5 of the pile length. In order to prevent slippage.

Extrusion from between piles, reinforced concrete or slurry should be set between piles.

Stone arch baffle of blocks. In important built-up areas, resistant.

Reinforced concrete should be used between the sliding piles to connect the beams.

Enhance overall stability.

4. Anti-slide pile cross-sectional shape.

Proportion of anti-slide pile burial depth.

Proportion of anti-slide pile burial depth.

1. Anti-slip piles are generally arranged in the section where the thickness of the landslide body is thin, the thrust is small, and the foundation strength of the rock-socketed section is high. When using anti-slide piles to prevent the landslide in sections, each section should be mainly arranged in a single row, and if the bending moment is too large, the prestressed anchor pile should be used. 2. The length of the anti-slide pile pile should be less than 35m.

For landslides with a buried depth of more than 25m, when anti-slide piles are used to prevent sliding, the feasibility should be fully demonstrated. 3. The spacing of anti-slide piles (middle to center) should be 5 10m. The embedded section of the anti-slide pile shall be embedded in the slide bed, which is about 1 3 2 5 of the pile length.

In order to prevent the sliding body from extruding from between the piles, a reinforced concrete or slurry block stone arch baffle should be set between the piles. In important construction areas, reinforced concrete connecting beams should be applied between anti-slide piles to enhance the overall stability. 4. The cross-sectional shape of the anti-slide pile is envy.

4. The cross-sectional shape of the anti-slide pile is mainly rectangular, the cross-sectional width is general, and the cross-sectional length is general. When it is difficult to determine the thrust direction of the sliding sideboard, a circular pile should be used.

Anti-slide pilesThe ratio of burial depth is 1:10.

The effect of the anti-slide pile on the landslide body is to use the resistance of the anti-slide pile to the pile by inserting the stable formation below the sliding surface (anchoring.

Force) balances the thrust of the sliding body and increases its stabilityWhen the landslide body slides down, it is impeded by the anti-slide pile, so that the sliding body in front of the pile reaches a stable state.

According to the thickness of the sliding body, the size of the thrust, the waterproof requirements and the construction conditions, etc., the wooden pile, steel pile, concrete and reinforced concrete pile anti-slide pile are selected to be buried below the depth below the stratum, according to general experience, the anchorage depth in the soft rock layer is one-third of the design pile length, and the qualitative rock is one-fourth of the design pile length; The soil sliding bed is one-half of the design pile length, and when the soil layer slides along the bedrock surface, the anchorage depth is also 2 to 5 times the diameter of the pile.

The arrangement form of anti-slide piles includes interconnected pile rows, pile rows spaced between each other, differential pile rows connected at the bottom of the skin and at the top, and the pile spacing such as anchor piles spaced between each other is generally 3 to 5 times of the pile diameter, so as to ensure that the sliding soil does not slide out between the piles in a loud way.

Answer]: A Tips: In order to ensure the addition of Acacia acacia solid-effective lead Youguo, it is generally stipulated that the anti-slide pile must go deep enough into the non-sliding rock formation, and the burial of the long head is too large, which will increase the cost of reinforcement.

There are three options:

1. Because the defects of the pile are in the position and not very deep, they can be chiseled to the place by means of manual excavation in the way of steel casing on the pile coat, and re-poured to the design elevation according to the way of connecting the pile after the defects are processed.

2. Use percussion drill to punch the old pile and re-press the new pile after completion.

3. Adopt the method of picking up the flat shoulder, drive two new piles on both sides of the original pile and make a cushion cap on the top of the pile (design changes are required).

The above methods are corresponding to the actual situation.