CN112160337A - Construction method of equipment foundation with large embedded part - Google Patents
Construction method of equipment foundation with large embedded part Download PDFInfo
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- CN112160337A CN112160337A CN201911074978.1A CN201911074978A CN112160337A CN 112160337 A CN112160337 A CN 112160337A CN 201911074978 A CN201911074978 A CN 201911074978A CN 112160337 A CN112160337 A CN 112160337A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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Abstract
A method for constructing an equipment foundation with large embedded parts belongs to the technical field of building construction, and increases the vibration range of the foundation and ensures the compactness of an independent foundation by reasonably optimizing a circular embedded part pouring hole in the prior art into a concrete pouring belt; the adjustable temporary supporting piece is arranged at the control point of the block embedded piece, so that the flatness of the embedded piece is ensured, key components of the temporary supporting piece can be recycled, the utilization rate of temporary materials is improved, and the resource waste is reduced; by special treatment on the construction joints, the attractiveness is improved, and the safety of the foundation is ensured; by reasonably optimizing the pouring material, the construction cost is reduced on the premise of ensuring the compactness of the lower part of the large-scale embedded part.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a construction method of an equipment foundation with a large embedded part.
Background
Aiming at an independent equipment foundation containing large-scale embedded parts, the concrete compactness guarantee, the embedded part position accuracy and the embedded part flatness, and the structure safety guarantee are key points of construction and difficult points.
As shown in fig. 1, which is a schematic view of the construction of an independent foundation containing a large-scale embedded part in the prior art, the following schemes are provided:
(1) the embedded parts are installed firstly and then are filled with grouting materials, so that the compactness can be ensured, but the cost is extremely high;
(2) after the embedded part is installed, concrete is poured, the number of vibrating holes is insufficient, the vibrating is insufficient, the compactness of the concrete cannot be guaranteed, and excessive vibrating causes inaccurate and uneven positioning of the embedded part;
(3) the concrete is poured in a layering mode for many times, the vibration of the vibrating rod disturbs the embedded part, the embedded part is inaccurate in positioning, and the potential safety hazard of the structure also exists when the construction joints are reserved excessively.
It can be seen that there are certain drawbacks to all three of the above solutions.
Disclosure of Invention
In order to solve the problems, the invention provides a method for constructing an equipment foundation with a large embedded part, which comprises the following steps:
dividing the whole embedded part into a plurality of block embedded parts, wherein all the block embedded parts are fixedly arranged according to relative positions and are spliced together to form the whole embedded part;
arranging two adjacent block embedded parts at preset intervals, wherein all the preset distances form a concrete pouring belt;
adopting common concrete to pour the steel bars on the construction site for the first time;
arranging a finished concrete block at the elevation position of the first pouring to form a second concrete pouring control surface;
arranging adjustable temporary supporting pieces at the peripheral positions of the block embedded parts for supporting the block embedded parts and adjusting the flatness of the block embedded parts; wherein the temporary support comprises a fixed portion and an adjustable portion;
after the first pouring is finished, arranging the blocking embedded parts into the first poured concrete according to fixed relative positions, wherein the temporary supporting parts are arranged in the first poured concrete;
adjusting the position of the adjustable portion relative to the fixed portion on each temporary support to flatten each segmented insert;
carrying out secondary pouring on the space between the secondary concrete pouring control surface and the preset distance below the blocking embedded part by adopting fine aggregate concrete;
and after the second pouring is finished, performing third pouring on the space between the preset distance below the blocking embedded part and the blocking embedded part by using grouting material.
Preferably, after the finished concrete block is arranged at the elevation position of the first pouring, the method further comprises the following steps:
and after initial setting and before final setting of the first pouring, inserting waste steel bars into the construction joints during the first pouring so as to enable the construction joints to be flat.
Preferably, in the step of arranging a finished concrete block at the elevation position of the first casting, a smaller surface of the finished concrete block contacts the reinforcing steel bars on the construction site.
Preferably, at the time of the second pouring, the fine aggregate concrete is poured into a space between the second concrete pouring control surface and a preset distance below the block burial members through the concrete pouring belt formed between the block burial members together.
Preferably, during the third pouring, the grouting material is poured into a space between the blocking embedded parts and a position below the blocking embedded parts by a preset distance through the concrete pouring belt formed between the blocking embedded parts together.
Preferably, the preset distance is 200 mm.
Preferably, after the adjusting the position of the adjustable portion relative to the fixed portion on each of the temporary supports, the method further comprises the steps of:
removing the adjustable portion from the fixed portion for later recycling.
Preferably, the fixing part comprises a waste steel bar, the adjusting part comprises a connecting nut and an adjusting nut, a first end of the waste steel bar is embedded into the first poured concrete, a second end of the waste steel bar is connected with the adjusting nut, the connecting nut is connected with the block embedded part and sleeved on the thread of the waste steel bar, and the adjusting nut is rotated to adjust the distance between the adjusting nut and the connecting nut so as to adjust the flatness of the block embedded part.
Preferably, after the first pouring of the steel bar on the construction site by using the common concrete, the method further comprises the following steps:
a vibrating rod is inserted into the general concrete to shape it.
Preferably, after the second pouring of the fine aggregate concrete into the space between the second concrete pouring control surface and the preset distance below the blocking embedded part, the method further comprises the following steps:
a vibrating rod is inserted into the fine stone concrete to shape it.
According to the construction method of the equipment foundation with the large embedded part, which is provided by the invention, the manufacturing of the embedded part is optimized, the installation difficulty of the embedded part is reduced, and the vibration compactness of concrete is improved; the using amount of the temporary supporting piece is reduced, the adjustable part can be recycled, the mounting precision of the embedded piece is ensured, and the cost of the temporary supporting piece is reduced; waste steel bars are additionally arranged at the construction joints to ensure the stability of the structure; finished concrete blocks are arranged at the concrete construction joints, so that the finished concrete surface is ensured to be attractive; and pouring different pouring materials at different positions according to actual conditions to ensure the compactness of the lower part of the embedded part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a conventional one-piece insert provided in the prior art;
FIG. 2 is a schematic flow chart of a method for constructing a foundation of equipment provided with large embedded parts according to the invention;
FIG. 3 is a schematic structural diagram of a whole block embedded part and a block embedded part in the construction method of the equipment foundation provided with the large embedded part, provided by the invention;
FIG. 4 is a schematic plan view of a construction joint in the method for constructing the equipment foundation provided with the large embedded parts according to the invention;
FIG. 5 is a cross-sectional flow chart of concrete layered pouring in the method for constructing the equipment foundation provided with the large-scale embedded part according to the invention;
FIG. 6 is a schematic structural diagram of a temporary supporting member in the method for constructing the foundation of the equipment provided with the large-scale embedded part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 2 to 6, in an embodiment of the present application, the present application provides a method for constructing an equipment foundation provided with a large embedded part, where the method includes the steps of:
s1: the integral embedded part 1 is divided into a plurality of block embedded parts 2, and all the block embedded parts 2 are fixedly arranged according to relative positions and are spliced together to form the integral embedded part 1.
As shown in fig. 3, in this step, the whole embedded part 1 is divided into a plurality of block embedded parts 2, and all the block embedded parts 2 are fixedly arranged according to relative positions and are spliced together to form the whole embedded part 1. In the present embodiment, the shape of the block burial members 2 is preferably a regular polygon such as a quadrangle, a pentagon, etc., and the relative position of each block burial member 2 is fixed, and all the block burial members 2 are joined to form the one-piece burial member 1.
S2: arranging two adjacent block embedded parts 2 at preset intervals, wherein all the preset intervals form a concrete pouring belt 3.
In this step, as shown in fig. 3, two adjacent block burial members 2 are spaced apart by a certain distance, so that the concrete casting band 3 can be formed. Through changing the concrete placement hole among the prior art into the concrete placement area, both made things convenient for embedded part installation and concrete placement, made things convenient for the concrete to vibrate again, and guaranteed the compactedness of concrete.
S3: and adopting the common concrete 4 to pour the reinforcing steel bars on the construction site for the first time.
In this step, since the construction site has only the steel bars, the steel bars can be cast for the first time by using the common concrete 4.
Wherein, after the step S3, the method further comprises the steps of: the use of a vibrating rod inserted into the general concrete 4 to form it can accelerate the formation of the general concrete 4 and enhance the compactness of the concrete.
S4: and arranging a finished concrete block 5 at the elevation position of the first pouring to form a second concrete pouring control surface.
As shown in fig. 4, in this step, a finished concrete block 5 is arranged at the elevation position of the first pouring, and serves as a concrete pouring control surface, so that the leveling of the construction joint is ensured, and the aesthetic effect is improved. Wherein the smaller face of the finished concrete block 5 contacts the reinforcing steel bars at the construction site.
Further, the following steps can be included after the step:
and after initial setting and before final setting of the first pouring, inserting waste steel bars into the construction joints during the first pouring so as to enable the construction joints to be flat. By the arrangement, waste steel bars can be utilized, and waste is avoided; on the other hand, the waste reinforcing steel bar can eliminate the weak position of construction joint, promotes the security of structure.
S5: an adjustable temporary support part 6 is arranged at the peripheral position of each block embedded part 2 and is used for supporting each block embedded part 2 and adjusting the flatness of the block embedded part; wherein the temporary support 6 comprises a fixed part 7 and an adjustable part 8.
In this step, as shown in fig. 3 and 6, an adjustable temporary support 6 is provided at a peripheral position of each of the block burial members 2, wherein the temporary support 6 includes a fixed portion 7 and an adjustable portion 8.
As shown in fig. 6, specifically, in the embodiment of the present application, the fixing portion 7 includes a scrap steel bar 11, the adjusting portion 8 includes a coupling nut 13 and an adjusting nut 12, a first end of the scrap steel bar 11 is embedded in the first poured concrete, a second end of the scrap steel bar 11 is coupled to the adjusting nut 12, the coupling nut 13 is coupled to the segment insert 2 and is fitted over the thread of the scrap steel bar 11, and the adjusting nut 12 is rotated to adjust the distance between the coupling nut 13 and the adjusting nut 12 so as to adjust the flatness of the segment insert 2.
S6: after the first pouring is finished, the blocking embedded parts 2 are arranged in the concrete poured for the first time according to fixed relative positions, and the temporary supporting parts 6 are arranged in the concrete poured for the first time.
In this step, as shown in fig. 5, each of the block burial members 2 is fixedly arranged in the general concrete 4 in a relative position, and the bottom of each of the temporary supporting members 6 is inserted into the general concrete 4.
S7: the position of the adjustable part 8 on each temporary support 6 relative to the fixed part 7 is adjusted to flatten each block insert 2.
In this step, the position of the adjustable part 8 on the fixed part 7 is adjusted so that the block insert 2 is flush with the entire construction joint, as shown in fig. 5 and 6. In particular, the position of the coupling nut 13 and the adjusting nut 12 on the scrap reinforcement 11 is adjusted so that the segment inlay 2 is flush with the entire construction joint.
Further, the following steps can be included after the step:
the adjustable part 8 is removed from the fixed part 7 for later recycling.
Specifically, in this embodiment, the adjusting nut 12 may be removed from the scrap rebar 11 for later recycling. On the one hand, the material is saved; on the other hand, the waste steel bars 11 are also utilized, and the utilization rate of resources is improved.
S8: and carrying out secondary pouring on the space between the secondary concrete pouring control surface and the preset distance below the block embedded part 2 by adopting fine aggregate concrete 9.
As shown in fig. 5, in this step, since dense reinforcing steel bars, temporary supporting members 6, block embedding members 2 and the like are arranged before, and the position where the vibrating rod can be inserted is limited, the fine aggregate concrete 9 is adopted for pouring, and the concrete is guaranteed to be dense by using the workability and high fluidity of the fine aggregate concrete 9.
Specifically, in the second pouring, the fine aggregate concrete 9 is poured into a space between the second concrete pouring control surface and a position 200mm below the block buried pieces 2 through the concrete pouring belt 3 formed between the block buried pieces 2 together, and a vibrating rod is inserted into the fine aggregate concrete 9 to accelerate the forming, so that the compactness is improved.
S9: and after the second pouring is finished, adopting a grouting material 10 to carry out third pouring on the space between the preset distance below the blocking embedded part and the blocking embedded part.
In this step, as shown in fig. 5, when the part 2 is embedded in blocks at 200mm from the bottom, the vibrating rod can not work any more, and air is easily gathered at the bottom of the large embedded part, which may cause the hidden danger of hollowing at the bottom of the embedded part, so that the high-fluidity grouting material 10 is used to ensure the compactness of the bottom of the large embedded part.
Specifically, during the third pouring, the grouting material 10 is poured into a space between the part 200mm below the block embedded parts 2 and the block embedded parts 2 through the concrete pouring belt 3 formed between the block embedded parts 2 together, so that the pouring compactness is improved.
According to the construction method of the equipment foundation with the large embedded part, which is provided by the invention, the manufacturing of the embedded part is optimized, the installation difficulty of the embedded part is reduced, and the vibration compactness of concrete is improved; the using amount of the temporary supporting piece is reduced, the adjustable part can be recycled, the mounting precision of the embedded piece is ensured, and the cost of the temporary supporting piece is reduced; waste steel bars are additionally arranged at the construction joints to ensure the stability of the structure; finished concrete blocks are arranged at the concrete construction joints, so that the finished concrete surface is ensured to be attractive; and pouring different pouring materials at different positions according to actual conditions to ensure the compactness of the lower part of the embedded part.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A construction method of an equipment foundation provided with large embedded parts is characterized by comprising the following steps:
dividing the whole embedded part into a plurality of block embedded parts, wherein all the block embedded parts are fixedly arranged according to relative positions and are spliced together to form the whole embedded part;
arranging two adjacent block embedded parts at preset intervals, wherein all the preset distances form a concrete pouring belt;
adopting common concrete to pour the steel bars on the construction site for the first time;
arranging a finished concrete block at the elevation position of the first pouring to form a second concrete pouring control surface;
arranging adjustable temporary supporting pieces at the peripheral positions of the block embedded parts for supporting the block embedded parts and adjusting the flatness of the block embedded parts; wherein the temporary support comprises a fixed portion and an adjustable portion;
after the first pouring is finished, arranging the blocking embedded parts into the first poured concrete according to fixed relative positions, wherein the temporary supporting parts are arranged in the first poured concrete;
adjusting the position of the adjustable portion relative to the fixed portion on each temporary support to flatten each segmented insert;
carrying out secondary pouring on the space between the secondary concrete pouring control surface and the preset distance below the blocking embedded part by adopting fine aggregate concrete;
and after the second pouring is finished, performing third pouring on the space between the preset distance below the blocking embedded part and the blocking embedded part by using grouting material.
2. The method of constructing an equipment foundation according to claim 1, further comprising the step of, after said placing a finished concrete block at the elevation of said first placing:
and after initial setting and before final setting of the first pouring, inserting waste steel bars into the construction joints during the first pouring so as to enable the construction joints to be flat.
3. The method of constructing an equipment foundation according to claim 1, wherein in the step of providing a finished concrete block at the elevation position of the first casting, a smaller surface of the finished concrete block contacts the steel bars at the construction site.
4. The equipment foundation construction method of claim 1, wherein at the second pouring, the fine grained concrete is poured into a space between the second pouring control surface and a preset distance below the block burial by the concrete pouring band jointly formed between the block burials.
5. The apparatus foundation construction method according to claim 1, wherein the grouting material is poured into a space between the block burial at a preset distance below the block burial by the concrete pouring band jointly formed between the block burial at the time of the third pouring.
6. The apparatus foundation construction method as claimed in claim 1, 4 or 5, wherein the preset distance is 200 mm.
7. The apparatus foundation construction method according to claim 1, further comprising, after said adjusting the position of said adjustable portion relative to said fixed portion on each of said temporary supports, the steps of:
removing the adjustable portion from the fixed portion for later recycling.
8. The apparatus foundation construction method according to claim 1, wherein the fixing portion includes a scrap reinforcing bar, the adjusting portion includes a coupling nut and an adjusting nut, the scrap reinforcing bar is embedded in the first-time cast concrete at a first end and is coupled to the adjusting nut at a second end, the coupling nut is coupled to the segment embedment and is fitted over a thread of the scrap reinforcing bar, and the adjusting nut is rotated to adjust a distance between the adjusting nut and the coupling nut so as to adjust the flatness of the segment embedment.
9. The method for constructing foundation of construction equipment according to claim 1, further comprising the step of, after the first pouring of the steel bars on the construction site with the general concrete:
a vibrating rod is inserted into the general concrete to shape it.
10. The equipment foundation construction method of claim 1, further comprising, after the second casting with fine aggregate concrete of the space between the second concrete cast control surface and the preset distance below the block embedment, the steps of:
a vibrating rod is inserted into the fine stone concrete to shape it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911074978.1A CN112160337A (en) | 2019-11-06 | 2019-11-06 | Construction method of equipment foundation with large embedded part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911074978.1A CN112160337A (en) | 2019-11-06 | 2019-11-06 | Construction method of equipment foundation with large embedded part |
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| CN112160337A true CN112160337A (en) | 2021-01-01 |
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| CN201911074978.1A Pending CN112160337A (en) | 2019-11-06 | 2019-11-06 | Construction method of equipment foundation with large embedded part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338322A (en) * | 2021-06-21 | 2021-09-03 | 中铁十二局集团有限公司 | Construction method of building vibration isolation foundation |
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| CN207079617U (en) * | 2017-05-23 | 2018-03-09 | 中建二局第三建筑工程有限公司 | A kind of roller-coaster foundation structure |
| CN207934203U (en) * | 2018-03-12 | 2018-10-02 | 青岛建设集团有限公司 | Modularization pre-embedded steel slab |
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2019
- 2019-11-06 CN CN201911074978.1A patent/CN112160337A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207079617U (en) * | 2017-05-23 | 2018-03-09 | 中建二局第三建筑工程有限公司 | A kind of roller-coaster foundation structure |
| CN207934203U (en) * | 2018-03-12 | 2018-10-02 | 青岛建设集团有限公司 | Modularization pre-embedded steel slab |
Non-Patent Citations (2)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113338322A (en) * | 2021-06-21 | 2021-09-03 | 中铁十二局集团有限公司 | Construction method of building vibration isolation foundation |
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Application publication date: 20210101 |