How long does it take for the foundation of a newly built house to settle

It takes 3 to 10 years for the foundation of a new house to settle.

If the construction of the new house is carried out in strict accordance with the standards, the probability of sinking in the later stage is relatively small. After all, the foundation built according to the standard has a relatively large bearing capacity, which can reach as much as 7 times the pressure of the house.

If the foundation of the new house sinks, it is necessary to contact a professional housing safety appraisal unit for identification, and take professional remedial methods to deal with it, as long as the foundation is reinforced and straightened, the quality of the new house can be ensured, and the safety will be greatly increased.

If the shear strength of the foundation of the new house does not meet the standard of use, then the problem of foundation settlement is prone to occur. At this time, an enhancement can be made on the shear strength of the foundation to prevent the foundation from sinking.

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Normally, it will be finalized within 5 to 10 years after the construction of the house, but some will reappear due to soil erosion after 10 to 20 years.

There are many reasons for this, such as the depth of the foundation pit, the layout of the house itself, the quality of the soil, and so on.

During the construction period of a normal high-rise building, a special settlement test must be carried out, and it must also be recorded in the file, usually once a month, until it does not settle.

The annual settlement of ordinary buildings is about 2 cm, and it will stop when the settlement reaches the corresponding time, and the stable period of settlement is usually within the last 10 days of the estimated settlement, and it is necessary to ensure its average value.

Below the specified millimeter, the settlement value of all buildings can be calculated after the end of the final settlement period.

If only the corner of the wall has a gap, this is the normal condition of settlement, if the error of the horizontal line of the template is greater than 5 cm, you must be careful, which means that the settlement of the building is too large, has reached the standard of the dangerous building, and must be immediately reflected to the corresponding unit.

Under normal conditions, the settlement of the building will inevitably cause corner cracking, if the floor level is faulty, it means that the construction is not in place, there is a suspicion of cutting corners.

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We're glad to answer your questions! Dear, the foundation settlement will be stable for about 1-2 years, and it will generally stabilize in about 1-2 years. If the foundation continues to settle after two years, it is necessary to find out the cause first, if it is a general crack, it will not affect the safety, as long as the grouting repair or caulking repair.

If the settlement and cracks are serious and have affected the safety, the foundation should be reinforced, or a reinforced concrete ring beam can be set on the wall to fix. Once the foundation has sunk, it needs to be reinforced. Before reinforcement, it is necessary to inspect the crack Weimo Zheng to understand the development of the crack, and then select the corresponding reinforcement method according to the degree of the crack.

If the settlement occurs because of the uneven construction of the foundation, it will usually have a great impact on the bearing capacity of the building, so it is necessary to repair the foundation by caulking or grouting, and after reinforcement and repair, the foundation can be used normally. However, if the area of foundation subsidence is too large, and the sinking place is unevenly distributed, the building on the foundation is easy to tilt and crack, and this situation can no longer be used normally, and it needs to be moved out to a safe place as soon as possible. Hope mine can help you!

If you have any other questions, you can ask me again.

Because there are many factors that affect the subsidence of the foundation, so there is no specific time, if the house is built according to the standard construction, it will not sink, according to the standard construction of the foundation, the bearing capacity is generally 7-8 times the pressure of the house, if you are not sure about the specific situation of the house, you can find a professional to identify it, and the foundation can also be strengthened by the method of foundation reinforcement in the later stage, so that the house will not sink.

First, how many years does the foundation of a new house generally sink?

There are many reasons for the subsidence of the foundation, there is no specific time, if the house is constructed according to the standard, it will not sink, because the foundation constructed according to the standard, its bearing capacity is relatively large, generally more than 7-8 times the pressure of the house.

If there is a sinking of the foundation of the house, you should generally find a local housing safety appraisal agency or a quality supervision agency to identify it, and then take certain remedial measures, which can strengthen the foundation and straighten it basically without any major problems.

Second, what should I do after the foundation of the house sinks?

1. Improve the shear strength of foundation soil.

The shear failure of the foundation is mainly reflected in the insufficient shear strength of the foundation soil, therefore, in order to prevent the shear from being destroyed, certain measures need to be taken to increase the shear strength of the foundation soil.

2. Improve the permeability characteristics of foundation soil.

The permeability of foundation soil is generally manifested in the problem of foundation leakage caused by foundations such as embankments; In the foundation pit excavation project, some quicksand and pipe gushing are generated because of the thin layer of silt or silt in the soil layer. Measures must be taken to reduce the permeability of the foundation soil or to reduce its water pressure.

3. Reduce the compressibility of foundation soil.

The compressibility of the foundation soil is manifested in the large settlement and differential settlement of the building; Due to the load of filling soil or buildings, the foundation will generally be consolidated and settled; The negative frictional force acting on the foundation of the building causes a settlement problem of the building. At this time, we first need to take certain relevant measures to improve the compressive modulus of the foundation soil, so as to reduce the settlement or uneven settlement of the foundation.

4. Improve the dynamic characteristics of foundation soil.

The dynamic characteristics of the foundation soil will be manifested in the fact that the fine sand saturated with loose silt (including part of the silt) will be liquefied when **; Due to traffic loads or piling, etc., the adjacent foundations vibrate and sink. Measures need to be taken to prevent the liquefaction of the foundation and to improve its vibration characteristics to improve the seismic performance of the foundation.

If the foundation is not solid, it will sink during the construction process, and if the foundation has been tamped, it will not sink again.

If the foundation sinking is serious, the quality of the house will be affected, which will lead to the collapse of the house, so we must know the safety range of the foundation sinking. So how long does it take for the foundation of a new house to sink? How much is it safe to sink the foundation of a house?

Let's answer it for you.

How long does it take for the foundation of a new house to sink?

The house sinks depending on the situation. Just like the foundation of a house is sinking, there are new buildings that have sunken or have sunken after 5 years of living, or even ten or 20 years later, with soil erosion, there are different degrees of subsidence. Subsidence is further divided into two cases, there is uneven subsidence, and the whole plane sinks.

Comparatively speaking, the overall subsidence is not as dangerous and easy to detect as uneven subsidence. Uneven subsidence is usually felt during the living of the house, or we can see the tilt with our eyes, but if the overall subsidence is present, there are usually signs of cracking and sinking of the house wall. The more important factor of subsidence is soil erosion, or the influence of the vicinity of the house.

How much is it safe to sink the foundation of a house?

According to the relevant policies and regulations of our country, the allowable deformation of various structures of the building is a relative value, and the average settlement of the high-rise Hepei building shall not exceed 200mm; If the differential settlement of the building is less than the allowable settlement difference in the design code of the foundation of the building foundation in China, and the settlement of the foundation is less than 2mm months for two consecutive months, then the settlement of the building is considered to be stable. If the rate of foundation settlement is about 2 mm months for 2 consecutive months, and there is no tendency to terminate in the short term, then the house will be considered to be in a dangerous state.

With the construction and elevation of the building, the foundation will be lowered accordingly, if the foundation belongs to a small and uniform subsidence, then it usually does not affect the normal use of the building; If the foundation subsidence is uneven, and the subsidence drop is too large, exceeding a certain limit, then it will pose a threat to building safety.

The above is how long the foundation of the new house is sinking, and how much is the foundation of the house sinking for the safety introduction, in general, the foundation of the new house is about 5 years of residence, because there are different degrees of settlement with soil erosion. Usually, the average settlement of high-rise buildings shall not exceed 200mm, otherwise it will be regarded as a dangerous house and there will be potential safety hazards, so we must pay attention to the safety range of foundation sinking of new houses.