Build a six story house on a hard loess foundation, and find the depth of the manually dug pile

To build a six-storey house on a hard loess foundation, the depth of the manually dug pile should be considered according to the load, soil quality and number of piles. Generally speaking, if the soil quality is good, 6-7 meters deep is fine.

Manually excavated pile, engineering term, reinforced concrete pile excavated by manpower and poured on site. The diameter of the manually dug pile is generally thicker, and the thinnest is more than 800 mm, which can carry the main body of the structure with fewer floors and greater pressure, and is widely used at present. The cushion cap is arranged on the top of the pile, and then the cushion cap beam is used to tie and tie up, so that the stress of each pile is evenly distributed, and the whole building is supported by it.

Manually excavated cast-in-place pile refers to the pile hole made by manual excavation method, and then the reinforcement cage is placed and the concrete is poured.

Thank you for your help, you said it very clearly, but it didn't get to the point, how deep you dig is to look at the soil below, not to see the top. Is there a loss of the yellow picture?。。 It is best to figure out that the more troublesome soil quality of loess stone brother needs to deal with the collapse, and if it is treated, it can be determined to see which layer can meet the bearing capacity and the remaining collapse.

If you don't know the specific situation, you will not be responsible for telling you the depth.

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If there are stones under the loess, dig directly to the top of the stone to bear the load, according to the structure you said, digging 8-10 meters should not be a big problem, in addition to the raft foundation, the load-bearing capacity is slightly better than the base. PS: Loose water can be appropriately set wide loess expansive soil is easy to be eroded by rainwater, and can be properly considered for refilling.

The site drilling data and the seismic level you need to combine with the bearing capacity of the ground structure you mentioned above can be combined to design the structural type, excavation depth and diameter of the pile foundation.

The three-layer foundation of the rural homestead should be dug and how deep and wide it still depends on it.

Zhi soil quality, generally digging length and dao width each back.

It's about five meters, and the depth is also five meters. At the same time, it is also necessary to meet the needs of digging to the old soil, and the cold area exceeds the permafrost layer and is not less than meters. Finally, it is necessary to use manual shoveling to remove the loose soil, that is, whether the backfill and loose soil on it have been dug up, if it is still not, it is necessary to continue digging until the old soil is dug, which is to prevent settlement.

You owe this too much, and you have to be at least half deep.

Summary. Based on the information you provided, it is difficult to accurately judge whether a pile with a diameter of 60 cm and a depth of 6 meters can withstand the load of a 4-story building. Because the load of the building is not only related to the size and depth of the pile, but also related to various factors such as geological conditions, the structural form of the building, and the nature of the load.

In addition, the geological conditions of the yellow mud sandy soil require further evaluation and analysis. In general, the load of the building needs to be determined by foundation engineering investigation and design to determine the size and depth of the pile. The contents of the survey include geological conditions, groundwater level, soil thickness and properties, load characteristics, etc.

According to the survey results, the structural design and calculation are carried out, the size and depth of the pile are determined, and the pile foundation construction and monitoring are carried out. Therefore, if you need to accurately assess whether a pile with a diameter of 60 cm and a depth of 6 meters can withstand the load of a 4-storey building, it is recommended that you contact a professional foundation engineering design and construction company for a detailed survey and design.

Can a 60-centimeter pile with a depth of about 6 meters support a 4-storey building? The geology is yellow mud sandy soil.

I'm still a little confused, can you be more detailed?

Based on the information you provide, it is difficult to accurately determine whether a pile with a diameter of 60 centimeters and a depth of 6 meters can withstand the load of a four-story building. Because the load of the building is not only related to the size and depth of the pile, but also related to various factors such as geological conditions, the structural form of the building, and the nature of the load. In addition, the geological conditions of the yellow mud sandy soil require further evaluation and analysis.

In general, the load of the building needs to be determined by foundation engineering investigation and design to determine the size and depth of the pile. The contents of the survey include geological conditions, groundwater level, soil thickness and properties, load characteristics, etc. According to the survey results, the structural design and calculation are carried out, the size and depth of the pile are determined, and the pile foundation construction and monitoring are carried out.

Therefore, if you need a quasi-foundation to accurately assess whether a pile with a diameter of 60 cm and a depth of 6 meters can withstand the load of a 4-storey building, it is recommended that you contact a professional foundation engineering design and construction company for detailed investigation and design.

Hello, for foundation pits with a depth of five or six meters, it is possible to adopt a pile foundation or an independent foundation. However, there are a number of factors to consider, including the following:

First of all, the situation of the water table needs to be considered. If the water level of the underground rock is high, the pile foundation can better withstand the groundwater pressure, and at the same time, it can better prevent soil settlement. However, if the water table is low, a stand-alone foundation may be more suitable.

Secondly, the geological conditions need to be considered. If the foundation pit is located on a harder layer, an independent foundation can better withstand the load, while if the ground is softer, a pile foundation is more suitable.

In addition, it is also necessary to consider the surrounding environment of the foundation pit, such as whether there is a subway, underground pipelines, etc., as well as the structural form of the building where the foundation pit is located.

Therefore, for the foundation pit with a depth of five or six meters, it should be comprehensively considered according to the specific situation and the most suitable foundation method should be selected. Detailed site surveys and geological surveys are required to determine the best foundation plan during the actual workmanship.

This depends on the actual situation of the five or six meters foundation pit of Shenqian, and it is necessary to comprehensively consider the ground geological conditions, protective measures, construction safety requirements, Kai Kuan and financial factors, Huai Jian and other factors, in order to determine the most suitable foundation form. If the ground geological conditions are poor, it is more appropriate to use an independent foundation; If the geological conditions are good, the foundation can be used. In addition, construction safety requirements are also an important consideration, and construction safety factors must be taken into account in construction to ensure the quality of construction.

Finally, financial considerations also need to be considered in order to determine the best construction plan to provide the greatest return to the investor.

That is, the depth of the excavation exceeds the depth of the design. For example, the design requires a depth of -—, because there is a soft soil that must be cleared to a depth that exceeds the depth of - is ultra-deep.

It's over-digging, right?

According to the provisions of the foundation earthwork excavation to the foundation cushion bottom slightly higher, and then tamp the bottom to the bottom of the cushion elevation, if the excavation depth exceeds the bottom of the cushion, called "over-excavation", need to deal with the over-excavation part.

Foundation ultra-deep: if the design base elevation is deep (relative plus or minus zero), but when digging to the depth, the soil layer (or rock layer) of the base can not meet the load-bearing requirements of the design, then need to continue digging until the design bearing layer is reached. The part that continues to dig lower than the design elevation is the ultra-deep part.

Definition, theoretical value.

1) The buried depth of the foundation refers to the vertical distance from the outdoor design floor to the bottom surface of the foundation.

2) The foundation with a buried depth greater than or equal to 5 meters is called a deep foundation; Foundations buried between 5 meters are called shallow foundations. The buried depth of the foundation shall not be shallower than meters.