CN110965542A - Building foundation compaction method - Google Patents
Building foundation compaction method Download PDFInfo
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- CN110965542A CN110965542A CN201911215020.XA CN201911215020A CN110965542A CN 110965542 A CN110965542 A CN 110965542A CN 201911215020 A CN201911215020 A CN 201911215020A CN 110965542 A CN110965542 A CN 110965542A
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- compaction
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
Abstract
The invention belongs to the field of building foundations, in particular to a building foundation compaction method, which aims at solving the problems that the existing compaction technology mostly does not have a scientific compaction mode, the compaction quality is easily influenced, and the compaction efficiency is reduced, and provides the following scheme, which comprises the following steps: s1: selecting different test points on the building foundation; s2: carrying out geological engineering investigation on different test points, and determining a deformation modulus; s3: rolling and tamping the test points by using different pressures, and injecting a compound until a required compaction effect is achieved; s4: the compound injection coefficient is calculated according to the areas of different test points and the injection amount of the compound into the different test points.
Description
Technical Field
The invention relates to the technical field of building foundations, in particular to a building foundation compaction method.
Background
The building foundation is divided into a natural foundation and an artificial foundation; foundations that can directly bear the load of a building without being treated are called natural foundations, whereas foundations that are treated by a foundation treatment technique are called artificial foundations.
Building foundation needs to be compacted, but most of the existing compaction technologies do not have scientific compaction modes, so that the compaction quality is easily influenced, and the compaction efficiency is reduced.
Therefore, we propose a method of compacting a building foundation to solve the above problems.
Disclosure of Invention
The building foundation compaction method provided by the invention solves the problems that most of the existing compaction technologies do not have scientific compaction modes, the compaction quality is easily influenced, and the compaction efficiency is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a building foundation compaction method comprising the steps of:
s1: selecting different test points on the building foundation;
s2: carrying out geological engineering investigation on different test points, and determining a deformation modulus;
s3: rolling and tamping the test points by using different pressures, and injecting a compound until a required compaction effect is achieved;
s4: calculating the injection coefficient of the compound according to the area of different test points and the injection amount of the compound into different test points;
s5: measuring the area of the building foundation and injecting compounds in all directions of the building foundation according to the compound injection coefficient;
s6: calculating the deformation modulus of the building foundation according to the deformation moduli corresponding to different test points;
s7: calculating a pressure coefficient and a time coefficient according to the deformation modulus, different pressures and rolling and tamping time corresponding to different test points;
s8: calculating required compaction pressure and compaction time under the condition of meeting the requirement of required compaction effect according to the deformation modulus, the pressure coefficient and the time coefficient of the building foundation;
s9: and rolling and tamping the building foundation by using the compaction pressure, wherein the rolling and tamping time is the compaction time, and the compaction of the building foundation is completed.
Preferably, in S1, the selection of the test points should follow a random principle; the random principle is that the investigation units are intentionally extracted subjectively during sampling, and each tested unit is randomly distributed to an experimental group and a control group according to the principle of equal probability; each unit has a certain chance to be drawn; for example, a random number table or the like may be used to ensure randomness.
Preferably, in S2, the deformation modulus includes poisson' S ratio, internal friction angle, specific adhesion, specific gravity and void ratio.
Preferably, in S2, geological engineering investigation is performed on different test points, the deformation modulus is determined, meanwhile, the different test points are numbered, the corresponding deformation modulus is recorded, and then, the compaction effect prediction is performed on the test points according to the deformation modulus and the recording is performed.
Preferably, in S3, the test points are rolled and tamped with different pressures, and simultaneously, the compound is injected until the required compaction effect is achieved, and the pressure, time and amount of injected compound at different test points are recorded to match the numbers of the corresponding test points.
Preferably, in S4, the compound injection coefficient is calculated from the area size of the different test point and the amount of the compound injected into the different test point, and the compound injection coefficient is recorded so as to match the number of the corresponding test point.
Preferably, in S7, the pressure coefficient and the time coefficient are calculated according to the deformation modulus, the different pressures, and the rolling and tamping time corresponding to the different test points, and the pressure coefficient and the time coefficient are recorded and matched with the numbers of the corresponding test points.
Preferably, in S9, the building foundation is rolled and compacted by the compaction pressure, the rolling and compacting time is the compaction time, the compaction of the building foundation is completed, the compaction effect is tested and compared with the predicted value, and the compaction is finished if the comparison result is within the limited range.
Preferably, in S9, the comparison result is not within a limited range, and the whole compaction process is detected.
Compared with the prior art, the invention has the beneficial effects that:
1. the test points are selected, the deformation modulus is determined, rolling and tamping are carried out on the test points by using different pressures, and meanwhile, the compound is injected until the required compaction effect is achieved, so that the compound injection coefficient, the pressure coefficient and the time coefficient can be obtained;
2. the compound injection coefficient, the pressure coefficient and the time coefficient are obtained in a scientific mode, so that the compound injection amount, the required compaction pressure and the required compaction time can be calculated according to the required compaction effect, and the purposes of improving the compaction quality and improving the compaction efficiency are achieved;
3. because select the test point, can accomplish the geological engineering investigation of building foundation according to the geological engineering investigation of test point, and the rate of accuracy is high, is difficult to the error.
The invention has scientific compaction mode, can improve the compaction quality and improve the compaction efficiency.
Drawings
Fig. 1 is a flow chart of a building foundation compaction method according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
Referring to fig. 1, a building foundation compacting method includes the following steps:
s1: selecting different test points on the building foundation;
s2: carrying out geological engineering investigation on different test points, and determining a deformation modulus;
s3: rolling and tamping the test points by using different pressures, and injecting a compound until a required compaction effect is achieved;
s4: calculating the injection coefficient of the compound according to the area of different test points and the injection amount of the compound into different test points;
s5: measuring the area of the building foundation and injecting compounds in all directions of the building foundation according to the compound injection coefficient;
s6: calculating the deformation modulus of the building foundation according to the deformation moduli corresponding to different test points;
s7: calculating a pressure coefficient and a time coefficient according to the deformation modulus, different pressures and rolling and tamping time corresponding to different test points;
s8: calculating required compaction pressure and compaction time under the condition of meeting the requirement of required compaction effect according to the deformation modulus, the pressure coefficient and the time coefficient of the building foundation;
s9: and rolling and tamping the building foundation by using the compaction pressure, wherein the rolling and tamping time is the compaction time, and the compaction of the building foundation is completed.
Example two
Referring to fig. 1, a building foundation compacting method includes the following steps:
s1: selecting different test points on the building foundation; the selection of the test points follows a random principle; the random principle is that the investigation units are intentionally extracted subjectively during sampling, and each tested unit is randomly distributed to an experimental group and a control group according to the principle of equal probability; each unit has a certain chance to be drawn; randomness may be guaranteed, for example, using a random number table or the like;
s2: carrying out geological engineering investigation on different test points, and determining a deformation modulus; the deformation modulus includes poisson's ratio, internal friction angle, specific adhesion, specific gravity and void fraction; meanwhile, numbering different test points, recording corresponding deformation moduli of the test points, and then predicting and recording compaction effects of the test points according to the deformation moduli;
s3: rolling and tamping the test points by using different pressures, and injecting a compound until a required compaction effect is achieved; recording the pressure, time and compound injection amount of different test points, and matching the pressure, time and compound injection amount with the serial numbers of the corresponding test points;
s4: calculating the injection coefficient of the compound according to the area of different test points and the injection amount of the compound into different test points; recording the injection coefficient of the compound, and matching the injection coefficient with the number of the corresponding test point;
s5: measuring the area of the building foundation and injecting compounds in all directions of the building foundation according to the compound injection coefficient;
s6: calculating the deformation modulus of the building foundation according to the deformation moduli corresponding to different test points;
s7: calculating a pressure coefficient and a time coefficient according to the deformation modulus, different pressures and rolling and tamping time corresponding to different test points; recording the pressure coefficient and the time coefficient, and matching the pressure coefficient and the time coefficient with the serial numbers of the corresponding test points;
s8: calculating required compaction pressure and compaction time under the condition of meeting the requirement of required compaction effect according to the deformation modulus, the pressure coefficient and the time coefficient of the building foundation;
s9: rolling and tamping the building foundation by using compaction pressure, wherein the rolling and tamping time is compaction time, and the compaction of the building foundation is completed; and testing the compaction effect, comparing the compaction effect with the predicted value, ending compaction if the comparison result is within a limited range, and detecting the whole compaction process if the comparison result is not within the limited range.
Compared with the building foundation compacted by the compaction method in the embodiment and the building foundation compacted by the compaction method in the prior art, the compaction quality and the compaction efficiency of the building foundation compacted by the compaction method in the embodiment are obviously improved compared with the compaction quality and the compaction efficiency of the building foundation compacted by the compaction method in the prior art.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A building foundation compaction method is characterized by comprising the following steps:
s1: selecting different test points on the building foundation;
s2: carrying out geological engineering investigation on different test points, and determining a deformation modulus;
s3: rolling and tamping the test points by using different pressures, and injecting a compound until a required compaction effect is achieved;
s4: calculating the injection coefficient of the compound according to the area of different test points and the injection amount of the compound into different test points;
s5: measuring the area of the building foundation and injecting compounds in all directions of the building foundation according to the compound injection coefficient;
s6: calculating the deformation modulus of the building foundation according to the deformation moduli corresponding to different test points;
s7: calculating a pressure coefficient and a time coefficient according to the deformation modulus, different pressures and rolling and tamping time corresponding to different test points;
s8: calculating required compaction pressure and compaction time under the condition of meeting the requirement of required compaction effect according to the deformation modulus, the pressure coefficient and the time coefficient of the building foundation;
s9: and rolling and tamping the building foundation by using the compaction pressure, wherein the rolling and tamping time is the compaction time, and the compaction of the building foundation is completed.
2. The method for compacting building foundation according to claim 1, wherein in S1, the selection of test points follows a random principle.
3. The method of claim 1, wherein in S2, the deformation modulus includes poisson' S ratio, internal friction angle, specific adhesion, specific gravity and void ratio.
4. The method as claimed in claim 1, wherein in S2, geological engineering investigation is conducted on different test points and deformation modulus is determined, meanwhile, different test points are numbered and corresponding deformation modulus is recorded, and then compaction effect prediction is conducted on the test points according to the deformation modulus and the test points are recorded.
5. The method for compacting building foundation according to claim 1, wherein in S3, the test points are rolled and tamped with different pressures, and simultaneously, the compound is injected until the required compacting effect is achieved, and the pressure, time and amount of compound injection of the different test points are recorded to match the numbers of the corresponding test points.
6. The method for compacting building foundation according to claim 1, wherein in S4, the compound injection coefficient is calculated according to the area size of different test points and the amount of compound injected into different test points, and the compound injection coefficient is recorded to match the number of the corresponding test point.
7. The method for compacting building foundation according to claim 1, wherein in S7, the pressure coefficient and the time coefficient are calculated according to the deformation modulus, the different pressures and the rolling and compacting time corresponding to the different test points, and the pressure coefficient and the time coefficient are recorded to match the numbers of the corresponding test points.
8. The building foundation compaction method according to claim 1, wherein in the step S9, the building foundation is rolled and compacted by using compaction pressure, the rolling and compaction time is compaction time, compaction of the building foundation is completed, compaction effect is tested and compared with a predicted value, and compaction is finished if the comparison result is within a limited range.
9. The method for compacting building foundation according to claim 8, wherein in S9, the whole compacting process is detected if the comparison result is not within a limited range.
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| CN201911215020.XA CN110965542A (en) | 2019-12-02 | 2019-12-02 | Building foundation compaction method |
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| CN201911215020.XA CN110965542A (en) | 2019-12-02 | 2019-12-02 | Building foundation compaction method |
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Citations (7)
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|---|---|---|---|---|
| CN102345285A (en) * | 2011-07-11 | 2012-02-08 | 湖南大学 | Soil and stone mixed filling roadbed compaction degree detecting method |
| CN102828502A (en) * | 2012-08-15 | 2012-12-19 | 中科院广州化学有限公司 | Construction method for in-situ reinforcing of high-pressure cement-chemical pulp compound grouting |
| CN108396723A (en) * | 2018-01-31 | 2018-08-14 | 甘肃省交通规划勘察设计院股份有限公司 | A kind of highway subgrade compaction quality rapid detection method |
| CN108570909A (en) * | 2018-05-15 | 2018-09-25 | 西南交通大学 | A kind of Extra-fine sand roadbed fills debulking methods |
| CN109344519A (en) * | 2018-10-15 | 2019-02-15 | 中铁二院工程集团有限责任公司 | A kind of fast appraisement method of the speed of raising railroad embankment inside compaction state |
| CN109736289A (en) * | 2018-12-14 | 2019-05-10 | 山东省机械施工有限公司 | A kind of construction method of hydraulic quick compacting foundation |
| CN110100062A (en) * | 2017-09-29 | 2019-08-06 | 原子能股份公司 | Weak mineral local soil type at ground debulking methods |
-
2019
- 2019-12-02 CN CN201911215020.XA patent/CN110965542A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345285A (en) * | 2011-07-11 | 2012-02-08 | 湖南大学 | Soil and stone mixed filling roadbed compaction degree detecting method |
| CN102828502A (en) * | 2012-08-15 | 2012-12-19 | 中科院广州化学有限公司 | Construction method for in-situ reinforcing of high-pressure cement-chemical pulp compound grouting |
| CN110100062A (en) * | 2017-09-29 | 2019-08-06 | 原子能股份公司 | Weak mineral local soil type at ground debulking methods |
| CN108396723A (en) * | 2018-01-31 | 2018-08-14 | 甘肃省交通规划勘察设计院股份有限公司 | A kind of highway subgrade compaction quality rapid detection method |
| CN108570909A (en) * | 2018-05-15 | 2018-09-25 | 西南交通大学 | A kind of Extra-fine sand roadbed fills debulking methods |
| CN109344519A (en) * | 2018-10-15 | 2019-02-15 | 中铁二院工程集团有限责任公司 | A kind of fast appraisement method of the speed of raising railroad embankment inside compaction state |
| CN109736289A (en) * | 2018-12-14 | 2019-05-10 | 山东省机械施工有限公司 | A kind of construction method of hydraulic quick compacting foundation |
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