CN111851568A - Method for remedying foundation embedded plate and embedded plate used by same - Google Patents
Method for remedying foundation embedded plate and embedded plate used by same Download PDFInfo
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- CN111851568A CN111851568A CN202010760368.3A CN202010760368A CN111851568A CN 111851568 A CN111851568 A CN 111851568A CN 202010760368 A CN202010760368 A CN 202010760368A CN 111851568 A CN111851568 A CN 111851568A
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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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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a method for remedying deviation or omission of an equipment foundation embedded plate and the embedded plate, which can be used for conveniently taking care of an embedded part on the premise of not influencing the stability of an original foundation. Drawing a side line of an expected position of the embedded plate on the foundation, cutting the foundation along the side line, crushing the foundation along a cutting trace, and forming a hole on the new embedded plate, wherein the hole comprises a connecting hole matched with the connecting piece and a grouting hole for grouting and overflowing; the position of the opening of the pre-buried plate is determined according to the shape of the pre-buried plate, the point of the center of gravity of the pre-buried plate is provided with at least one connecting hole, and other connecting holes are symmetrically or arrayed around the connecting hole at the center of gravity by taking the connecting hole at the center of gravity as a reference; the distance between the grouting holes and the connecting holes is larger than or equal to the distance between the connecting holes and the connecting holes; installing a connecting piece on the new embedded plate; finding the mounting position on the basis of the crushed material, and enabling the connecting piece to fall on the central axis of the connecting hole; welding the top of the connecting piece to the embedded plate; and grouting and maintaining from the grouting hole.
Description
Technical Field
The invention relates to a method for remedying deviation or omission of an equipment foundation embedded plate, belonging to the technical field of construction of industrial equipment foundations.
Background
Many production equipment supports are welded and fixed with steel plates pre-embedded in a concrete foundation, in actual engineering, the manufacturing and installation of pre-embedded parts are often implemented by civil engineering teams, and the equipment installation is performed by professional equipment manufacturers or contractors. The deviation and omission of the embedded plate are common phenomena due to the following reasons.
1. Inaccurate funding by equipment vendors;
2. the model of the equipment is not clear temporarily during the construction of the basic engineering or the model of the equipment is changed at the later stage;
3. when the foundation is poured, the embedded plate is not fixed firmly, and the embedded plate is deviated when the concrete is vibrated;
4. the civil engineering team forgets to place the embedded plate.
The conventional repair method comprises the following steps: the connecting piece is positioned and fixed through a hole and a bolt on the embedded piece; if the deviation of the embedded part is overlarge, a steel plate can be additionally welded on the original embedded part. However, if the embedded part is displaced or repaired by a conventional method, the connection between the embedded part and the foundation is not firm, the concrete at the lower part of the plate body is not compact, and the embedded part can be unshelled. If the poured and maintained concrete foundation is dismantled and reworked, huge economic loss is generated, and the equipment installation period is influenced.
Disclosure of Invention
The invention aims to provide a method for remedying the deviation or omission of an equipment foundation embedded plate, which can be used for conveniently taking care of an embedded part on the premise of not influencing the stability of the original foundation. The technical scheme comprises the following steps: the method comprises the following steps: s1: removing the deviation embedded plate, and if the working condition is that the embedded part is omitted, directly performing S2; s2: drawing a side line of the expected position of the embedded plate on the basis, allowing an error of 1-2cm between the side line and the expected position of the embedded plate, cutting the basis along the side line, crushing the basis along the cutting trace, and keeping the crushed surface of the basis as a rough surface; the cutting depth is greater than the thickness of the embedded plate; s3: a hole is formed in the new embedded plate, and the hole comprises a connecting hole matched with the connecting piece and a grouting hole for grouting and overflowing; the position of the opening of the pre-buried plate is determined according to the shape of the pre-buried plate, the point of the center of gravity of the pre-buried plate is provided with at least one connecting hole, and other connecting holes are symmetrically or arrayed around the connecting hole at the center of gravity by taking the connecting hole at the center of gravity as a reference; the distance between the grouting holes and the connecting holes is larger than or equal to the distance between the connecting holes and the connecting holes; s4: installing a connecting piece on the new embedded plate; s5: finding an installation position on the basis of the crushed materials, placing a gasket at the edge position of the installation position, wherein the top surface of the gasket and the embedded plate are positioned in the same horizontal plane, and the connecting piece falls on the central axis of the connecting hole; s6: welding the top of the connecting piece to the embedded plate; s7: and grouting and maintaining from the grouting hole.
Furthermore, grouting holes and connecting holes in the embedded plate are arranged at intervals.
Furthermore, the connecting hole is a conical hole, and the small end of the conical hole faces to the rough surface of the foundation.
Furthermore, each embedded plate is at least provided with a row of holes, and each row of holes comprises a plurality of grouting holes and connecting holes which are arranged at intervals and have equal intervals.
Furthermore, at least one end of two ends of the hole row on each embedded plate is provided with a connecting hole.
Further, the embedding depth of at least one connecting piece at the end part of the hole array is larger than or equal to that of other connecting pieces.
Further, the cutting depth exceeds the thickness of the embedded plate by 4-6 cm.
The invention also aims to provide the embedded plate, which is suitable for the embedded plate remediation method and comprises an axisymmetric or centrosymmetric polygonal plate body, wherein the plate body is preset with connecting holes and grouting holes, and the position of the center of gravity of the embedded plate is provided with at least one connecting hole.
Furthermore, at least two of the edges of the embedded plates are equal in length, and the embedded plates are spliced or used independently.
Further, the connecting holes are in clearance fit with the connecting pieces.
Drawings
Fig. 1 is a schematic structural diagram of an embedded plate after being embedded in a foundation.
In the figure, 1, connecting piece; 2. grouting holes; 3. connecting holes; 4. a plate body; 5. a foundation; 6. and (4) grouting.
Detailed Description
Example 1
A method for remedying an embedded plate comprises the following steps:
s1: dismantling the offset pre-buried plate, namely, breaking the concrete at the periphery of the offset pre-buried plate, cutting off the steel bars on the pre-buried plate, and dismantling the offset pre-buried plate, wherein if the pre-buried plate is omitted, the dismantling operation is not needed, and S2 is directly carried out;
s2: drawing a side line of the expected position of the embedded plate on the basis, allowing an error of 1-2cm between the side line and the expected position of the embedded plate, cutting the basis along the side line by using a cutting machine, wherein the cutting depth is greater than the thickness of the embedded plate; the cutting depth is + 4-6cm of the thickness of the embedded plate, and in the embodiment, the cutting depth is 5cm deeper than the thickness of the embedded plate. And breaking the foundation along the cutting trace, and breaking the concrete by using an air pick, wherein the depth is consistent with the cutting depth. And cleaning the foundation pit after the crushing is finished, and keeping the rough surface of the substrate.
S3: and (3) perforating the manufactured pre-buried steel plate, wherein the number of the holes is two, and the holes are divided into big holes and small holes. The diameter of the connecting hole is 1-3cm larger than that of the chemical bolt, and 2cm is adopted in the embodiment; the macropore is used for grouting and overflowing, is a grouting hole, has the diameter of 4-6cm, and adopts 5cm in the embodiment; the distance between two adjacent holes is 45-55cm, and 50cm is adopted in the embodiment.
The position of the opening of the pre-buried plate is determined according to the shape of the pre-buried plate, the point of the center of gravity of the pre-buried plate is provided with at least one connecting hole, and other connecting holes are symmetrically or arrayed around the connecting hole at the center of gravity by taking the connecting hole at the center of gravity as a reference; the distance between the grouting holes and the connecting holes is larger than or equal to the distance between the connecting holes and the connecting holes; each embedded plate is at least provided with a row of holes, and each row of holes comprises a plurality of grouting holes and connecting holes which are arranged at intervals and have equal intervals.
In this embodiment, a connecting hole is provided at the center of gravity of the pre-buried plate, and connecting holes and grouting holes that are provided at intervals are arranged on the diameter of the connecting hole. A row of holes is arranged on one embedded plate. The connecting hole is a tapered hole, and the small end of the tapered hole faces to the rough surface of the foundation.
At least one end of the two ends of the hole row on each embedded plate is provided with a connecting hole.
S4: and installing connecting pieces on the new embedded plates, wherein the connecting pieces in the embodiment adopt chemical bolts. The specific installation steps are as follows: and (4) pre-placing the pre-embedded plate at the mounting position, and marking the position of the chemical bolt in the small hole of the pre-embedded plate by using a marking pen. And selecting a chemical bolt with proper mechanical characteristics according to the equipment parameters and the model of the embedded plate for installation, and ensuring that the upper end of the chemical bolt is higher than the plane of the embedded plate.
The mounting steps of the chemical bolt are as follows: drilling, cleaning holes, putting a coagulant, embedding bolts and standing for hardening. The embedded depth of at least one connecting piece at the end part of the hole array is larger than or equal to the embedded depth of other connecting pieces. In this embodiment, the embedding depth of all the chemical bolts is made the same.
S5: the installation position is accurately found on the basis of the crushed steel plate, the gasket is placed at the edge position of the installation position, the top surface of the gasket and the embedded plate are located in the same horizontal plane, the connecting piece falls on the central axis of the connecting hole, the installed chemical bolt is just located in the center of the small hole of the embedded plate, and the plane and the levelness of the embedded iron plate are adjusted to meet the installation requirements of equipment.
S6: and welding the positioned embedded plate and the end part of the chemical bolt into a whole by adopting through welding.
S7: and grouting and maintaining from the grouting hole. And (3) pouring the stirred high-strength non-shrinkage grouting material into the lower part of the embedded plate from the large hole, and continuously pouring and filling the grouting material from one side until the next grout overflow hole overflows.
And immediately watering the grouting layer after final setting for moisture preservation and maintenance or covering a plastic film and covering a geotextile for maintenance. And after the maintenance period is finished, cutting off the chemical bolts protruding above the embedded plate, and polishing smoothly. And finally, coating anticorrosive paint at the exposed bottom of the steel plate.
Example 2
An embedded plate is suitable for the embedded plate remediation method of the embodiment 1 and comprises polygonal plate bodies which are axisymmetric or centrosymmetric, at least two of edges of the embedded plate are equal in length, and the embedded plate is spliced or used independently.
Therefore, in this embodiment, plate bodies that can be spliced with each other, such as a parallelogram, a rectangle, a hexagon, a herringbone and the like, may be used, the plate bodies are pre-provided with the connecting holes and the grouting holes, and the position of the center of gravity of the pre-embedded plate is provided with at least one connecting hole. In this embodiment, the embedded plate is a long rectangle, a connection hole is formed in a midpoint of the rectangle, the connection hole is used as a symmetry center, and holes are formed in two sides of the connection hole, so that the grouting holes and the connection holes in the embedded plate are arranged at intervals.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The method for remedying the embedded plate is characterized by comprising the following steps:
s1: removing the deviation embedded plate, and if the working condition is that the embedded part is omitted, directly performing S2;
s2: drawing a side line of the expected position of the embedded plate on the basis, allowing an error of 1-2cm between the side line and the expected position of the embedded plate, cutting the basis along the side line, crushing the basis along the cutting trace, and keeping the crushed surface of the basis as a rough surface; the cutting depth is greater than the thickness of the embedded plate;
s3: a hole is formed in the new embedded plate, and the hole comprises a connecting hole matched with the connecting piece and a grouting hole for grouting and overflowing; the position of the opening of the pre-buried plate is determined according to the shape of the pre-buried plate, the point of the center of gravity of the pre-buried plate is provided with at least one connecting hole, and other connecting holes are symmetrically or arrayed around the connecting hole at the center of gravity by taking the connecting hole at the center of gravity as a reference; the distance between the grouting holes and the connecting holes is larger than or equal to the distance between the connecting holes and the connecting holes;
s4: installing a connecting piece on the new embedded plate;
s5: finding an installation position on the basis of the crushed materials, placing a gasket at the edge position of the installation position, wherein the top surface of the gasket and the embedded plate are positioned in the same horizontal plane, and the connecting piece falls on the central axis of the connecting hole;
s6: welding the top of the connecting piece to the embedded plate;
s7: and grouting and maintaining from the grouting hole.
2. The method for remedying the embedded plate according to claim 1, wherein the grouting holes and the connecting holes in the embedded plate are arranged at intervals.
3. The method for remedying the embedded plate as claimed in claim 1, wherein the connecting hole is a tapered hole, and the small end of the tapered hole faces to the rough surface of the foundation.
4. The method for remedying the embedded plate according to any one of claims 1 to 3, wherein each embedded plate is provided with at least one row of holes, and each row of holes comprises a plurality of grouting holes and connecting holes which are arranged at intervals and are equally spaced.
5. The embedment plate remediation method of claim 4, wherein at least one of the two ends of the hole array of each embedment plate is provided with a connection hole.
6. The method of repairing an embedded plate according to claim 5, wherein the embedded depth of at least one connecting member at the end of the hole array is greater than or equal to the embedded depth of other connecting members.
7. The embedment plate remediation method of claim 1, wherein the depth of cut exceeds the embedment plate thickness by 4-6 cm.
8. An embedded plate, which is suitable for the embedded plate remediation method of any one of claims 1 to 7, and comprises an axisymmetric or centrosymmetric polygonal plate body, wherein the plate body is provided with connecting holes and grouting holes in advance, and at least one connecting hole is arranged at the position of the center of gravity of the embedded plate.
9. The pre-buried plate according to claim 8, wherein at least two of the edges of the pre-buried plate have the same length, and the pre-buried plate is used in a spliced manner or in a single manner.
10. The embedment plate of claim 8, wherein the attachment holes are in a clearance fit with the attachment members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010760368.3A CN111851568A (en) | 2020-07-31 | 2020-07-31 | Method for remedying foundation embedded plate and embedded plate used by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010760368.3A CN111851568A (en) | 2020-07-31 | 2020-07-31 | Method for remedying foundation embedded plate and embedded plate used by same |
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| Publication Number | Publication Date |
|---|---|
| CN111851568A true CN111851568A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010760368.3A Pending CN111851568A (en) | 2020-07-31 | 2020-07-31 | Method for remedying foundation embedded plate and embedded plate used by same |
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| Country | Link |
|---|---|
| CN (1) | CN111851568A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787706A (en) * | 2010-03-04 | 2010-07-28 | 中冶实久建设有限公司 | Construction method of installing and fixing equipment basic pre-buried iron elements |
| AU2010257353A1 (en) * | 2010-12-21 | 2012-07-05 | Sekisui House, Ltd | Building foundation structure, foundation construction method, and anchor bolt installation jig |
| CN103835308A (en) * | 2012-11-23 | 2014-06-04 | 江西昌河航空工业有限公司 | Method for installing embedded base plate of machine tool |
-
2020
- 2020-07-31 CN CN202010760368.3A patent/CN111851568A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787706A (en) * | 2010-03-04 | 2010-07-28 | 中冶实久建设有限公司 | Construction method of installing and fixing equipment basic pre-buried iron elements |
| AU2010257353A1 (en) * | 2010-12-21 | 2012-07-05 | Sekisui House, Ltd | Building foundation structure, foundation construction method, and anchor bolt installation jig |
| CN103835308A (en) * | 2012-11-23 | 2014-06-04 | 江西昌河航空工业有限公司 | Method for installing embedded base plate of machine tool |
Non-Patent Citations (4)
| Title |
|---|
| 孟翔等: "大型设备基础施工中的一些问题及处理方法", 《科技风》 * |
| 朱锐: "热轧技改RN大电机灌浆垫板质量控制与管理", 《梅山科技》 * |
| 杜建能: "提高设备混凝土支座预埋板施工精度的措施", 《散装水泥》 * |
| 赵勤等: "《城市轨道交通通信信号系统工程安装技术手册》", 31 May 2013, 中国铁道出版社 * |
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Application publication date: 20201030 |
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