CN115142468A - Waterproof construction method for junction of new basement and old basement bottom plate - Google Patents
Waterproof construction method for junction of new basement and old basement bottom plate Download PDFInfo
- Publication number
- CN115142468A CN115142468A CN202210746968.3A CN202210746968A CN115142468A CN 115142468 A CN115142468 A CN 115142468A CN 202210746968 A CN202210746968 A CN 202210746968A CN 115142468 A CN115142468 A CN 115142468A
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- bottom plate
- new
- old
- basement
- construction method
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 239000004575 stone Substances 0.000 claims abstract description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 6
- 125000006850 spacer group Chemical group 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims description 7
- 239000004746 geotextile Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 239000004588 polyurethane sealant Substances 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000004078 waterproofing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The application provides a waterproof construction method for a junction of a base plate of a new basement and an old basement, relates to the technical field of building construction waterproofing, and comprises the following steps: firstly, flattening one side of a new bottom plate, pouring a cushion layer to reach the designed elevation of the bottom plate, and then releasing a groove line along the edge of the old bottom plate; excavating earth and stone from one side of the new bottom plate to one side of the lower part of the old bottom plate along the grooving line; after earth and stones excavated in the groove are cleaned, fixing the steel edge water stop at the bottom of the old bottom plate through the mounting hole by using an anchor; constructing a waterproof layer from the slotting position of the old bottom plate to the other end of the extension of the new bottom plate; binding a new bottom plate reinforcing steel bar net piece, and fixing one side of the remaining steel edge water stop on the new bottom plate reinforcing steel bar through a steel edge water stop mounting hole; pouring concrete at the slot and the new bottom plate simultaneously, and maintaining; and after the new bottom plate concrete reaches the required strength, removing the spacers at the junction of the new bottom plate and the old bottom plate to form the expansion joint. By adopting the construction method, the waterproof effect between the new bottom plate and the old bottom plate of the basement is better.
Description
Technical Field
The application relates to the technical field of building construction waterproofing, in particular to a waterproof construction method for a junction of a base plate of a new basement and an old basement.
Background
The basement bottom plate is waterproof, particularly in areas with abundant underground water, the basement bottom plate is constructed in a mode that waterproof coiled materials are laid on a cushion layer and then a whole block of impervious concrete raft is cast in situ, so that the basement bottom plate is guaranteed to be impervious to water. However, when the basement needs to be expanded or extended, the problem of water seepage at the junction of the bottom plates of the old basement and the new basement is easy to occur.
Disclosure of Invention
In order to solve the problem that water seepage occurs at the junction of a new basement bottom plate and an old basement bottom plate easily when the basement is expanded or extended, the application provides a waterproof construction method for the junction of the new basement bottom plate and the old basement bottom plate.
The application provides a waterproof construction method of a junction of a base plate of a new basement and an old basement, which adopts the following technical scheme:
a waterproof construction method for a junction of a base plate of a new basement and an old basement comprises the following steps:
s1, firstly, flattening one side of a new bottom plate in a field, pouring a cushion layer to reach a designed elevation of the bottom plate, and then releasing a groove line along the edge of the old bottom plate, wherein the groove line accounts for 300mm of one side of the new bottom plate;
s2, excavating earth and stone from one side of the new bottom plate to one side of the lower part of the old bottom plate by the depth of 300mm along the grooving line, wherein the excavating depth is controlled to be 300mm;
s3, after earth and stones excavated in the groove are cleaned, fixing the steel edge water stop belt at the bottom of the old bottom plate through the mounting hole by using an anchor;
s4, constructing a waterproof layer from the notch of the old bottom plate to the other end of the extension of the new bottom plate;
s5, binding a new bottom plate reinforcing steel bar net piece, and fixing one side of the remaining steel edge water stop on the new bottom plate reinforcing steel bar through a steel edge water stop mounting hole;
s6, after closing the side template of the new bottom plate, pouring concrete at the grooving position and the new bottom plate simultaneously, and maintaining;
and S7, after the concrete of the new bottom plate reaches the required strength, removing the spacers at the junction of the new bottom plate and the old bottom plate to form the expansion joint.
Optionally, before the steel plate water stop is fixed, the interface adhesive is brushed after the base layer of the bottom surface of the old bottom plate is cleaned, and the interface adhesive is brushed on the old bottom plate by installing one side of the middle axis of the steel edge water stop at the position where the interface adhesive is brushed on the old bottom plate when the steel plate water stop is fixed.
Optionally, after the waterproof layer construction is finished, geotextile is laid on the waterproof layer to protect the waterproof layer.
Optionally, a spacer with the thickness required by design is embedded at the junction of the new bottom plate and the old bottom plate and at the upper part of the middle axis of the steel-edge water stop.
Optionally, when the steel plate waterstop is installed, the steel plates on two sides of the waterstop are fixed at different horizontal plane heights, so that the waterstop is vertically arranged.
Optionally, polyurethane sealant is embedded in the expansion joint to serve as expansion joint filler.
In summary, the present application includes at least one of the following advantages: the steel plate water stop is made into the reverse Z shape, the construction is simple and efficient, the vertical contact surface of the junction of the old basement bottom plate and the new plate is not damaged, and the water seepage of the cracks generated by the expansion of the old bottom plate and the new bottom plate can be prevented.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
Description of reference numerals:
1. an old bottom plate; 2. a new backplane; 3. a steel plate waterstop; 4. reinforcing mesh sheets; 5. an expansion joint.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a waterproof construction method for a junction of a new basement and an old basement bottom plate. Referring to fig. 1, a waterproof construction method for a junction of a new basement and an old basement bottom plate comprises the following steps:
s1, firstly, flattening the field on one side of a new bottom plate 2, pouring a cushion layer to reach the designed elevation of the bottom plate, then releasing a groove line along the edge of the old bottom plate 1, wherein the groove line accounts for 300mm of one side of the new bottom plate.
And S2, excavating earth and stones from one side of the new bottom plate 2 to one side of the lower part of the old bottom plate 1 along the grooving line by the depth of 300mm, wherein the excavating depth is controlled to be 300mm.
S3, after earth and stones excavated in the groove are cleaned, the steel edge water stop 3 is fixed to the bottom of the old bottom plate 1 through the mounting hole by using an anchor, before the steel plate water stop 3 is fixed, the interface adhesive is brushed after the base layer of the bottom surface of the old bottom plate 1 is cleaned up, and the interface adhesive is brushed on the old bottom plate by using one side of the middle axis of the steel edge water stop when the steel plate water stop 3 is fixed.
And S4, constructing a waterproof layer from the groove of the old bottom plate 1 to the other end of the extension of the new bottom plate 2, and laying geotextile on the waterproof layer to protect the waterproof layer after the waterproof layer is constructed.
S5, binding a new bottom plate 2 and a reinforcing mesh 4 on the geotextile, fixing one side of the rest steel edge water stop 3 on the new bottom plate 2 and the reinforcing mesh 4 through a mounting hole of the steel edge water stop 3, enabling the steel plate water stop 3 to be of an inverted Z shape, enabling the rubber water stop between the two steel plates to be in a vertical state, and playing a waterproof role in a gap between the new bottom plate and the old bottom plate.
S6, after the new bottom plate 2 side template is closed, pouring concrete at the grooving part and the new bottom plate 2 at the same time, and maintaining.
And S7, after the concrete of the new bottom plate reaches the required strength, removing the spacers at the junction of the new bottom plate and the old bottom plate to form the expansion joint 5, and embedding polyurethane sealant in the expansion joint 5 to serve as a filler of the expansion joint 5.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A waterproof construction method for a junction of a base plate of a new basement and an old basement comprises the following steps:
s1, firstly, leveling one side of a new bottom plate, pouring a cushion layer to reach a design elevation of the bottom plate, and then releasing a grooving line along the edge of the old bottom plate, wherein the grooving line accounts for 300mm of one side of the new bottom plate;
s2, excavating earth and stone from one side of the new bottom plate to one side of the lower part of the old bottom plate by the depth of 300mm along the grooving line, wherein the excavating depth is controlled to be 300mm;
s3, after earth and stones excavated in the groove are cleaned, fixing the steel edge water stop belt to the bottom of the old bottom plate through the mounting hole by using an anchor nail;
s4, constructing a waterproof layer from the notch of the old bottom plate to the other end of the extension of the new bottom plate;
s5, binding a new bottom plate reinforcing steel bar net piece, and fixing one side of the remaining steel edge water stop on the new bottom plate reinforcing steel bar through a steel edge water stop mounting hole;
s6, after closing the side template of the new bottom plate, pouring concrete at the grooving position and the new bottom plate simultaneously, and maintaining;
and S7, after the concrete of the new bottom plate reaches the required strength, removing the spacers at the junction of the new bottom plate and the old bottom plate to form the expansion joint.
2. The waterproof construction method for the junction of the bottom plates of the old basement and the new basement as claimed in claim 1, wherein the waterproof construction method comprises the following steps: before the steel plate water stop is fixed, cleaning the base layer of the bottom surface of the old bottom plate and brushing the interface adhesive agent, and installing the middle axis side of the steel edge water stop at the position where the interface adhesive agent is brushed on the old bottom plate when the steel plate water stop is fixed.
3. The waterproof construction method for the junction of the bottom plates of the old basement and the new basement as claimed in claim 1, wherein the waterproof construction method comprises the following steps: and laying geotextile on the waterproof layer to protect the waterproof layer after the waterproof layer is well constructed.
4. The waterproof construction method for the junction of the bottom plates of the old basement and the new basement as claimed in claim 1, wherein the waterproof construction method comprises the following steps: and the upper parts of the junction of the new bottom plate and the old bottom plate and the middle axis of the steel-edge water stop are embedded with the spacers with the thickness required by the design.
5. The waterproof construction method for the junction of the base plates of the new basement and the old basement as claimed in claim 4, wherein the waterproof construction method comprises the following steps: when the steel plate waterstop is installed, the steel plates on the two sides of the waterstop are fixed at different horizontal plane heights, so that the waterstop is vertically arranged.
6. The waterproof construction method for the junction of the bottom plates of the old basement and the new basement as claimed in claim 1, wherein the waterproof construction method comprises the following steps: polyurethane sealant is embedded in the expansion joint to serve as expansion joint filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210746968.3A CN115142468B (en) | 2022-06-29 | 2022-06-29 | Waterproof construction method for junction of bottom plates of new basement and old basement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210746968.3A CN115142468B (en) | 2022-06-29 | 2022-06-29 | Waterproof construction method for junction of bottom plates of new basement and old basement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115142468A true CN115142468A (en) | 2022-10-04 |
| CN115142468B CN115142468B (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210746968.3A Active CN115142468B (en) | 2022-06-29 | 2022-06-29 | Waterproof construction method for junction of bottom plates of new basement and old basement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115142468B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801916Y (en) * | 2005-04-20 | 2006-08-02 | 贵阳铝镁设计研究院 | Water-proof expansion seam structure of joint of new-old concrete building |
| JP2009215732A (en) * | 2008-03-07 | 2009-09-24 | Tajima Roofing Inc | Repairing coated film waterproofing method |
| CN207512937U (en) * | 2017-10-19 | 2018-06-19 | 林亮 | A kind of new-old concrete crossover node side wall waterproofing of movement joints construction |
| CN109356201A (en) * | 2018-10-19 | 2019-02-19 | 中铁第四勘察设计院集团有限公司 | A kind of the interface waterproof construction and interface method for waterproofing of new-old concrete |
| CN112609746A (en) * | 2020-12-11 | 2021-04-06 | 中国建筑第五工程局有限公司 | New and old basement joint concrete waterproof component and construction method thereof |
| CN112982694A (en) * | 2021-02-24 | 2021-06-18 | 无锡市东方雨虹防水工程有限公司 | Waterproof structure and construction method for basement extension building junction structure |
| CN216130188U (en) * | 2021-06-02 | 2022-03-25 | 中建四局第一建设有限公司 | Waterproof construction of new and old structure junction |
-
2022
- 2022-06-29 CN CN202210746968.3A patent/CN115142468B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801916Y (en) * | 2005-04-20 | 2006-08-02 | 贵阳铝镁设计研究院 | Water-proof expansion seam structure of joint of new-old concrete building |
| JP2009215732A (en) * | 2008-03-07 | 2009-09-24 | Tajima Roofing Inc | Repairing coated film waterproofing method |
| CN207512937U (en) * | 2017-10-19 | 2018-06-19 | 林亮 | A kind of new-old concrete crossover node side wall waterproofing of movement joints construction |
| CN109356201A (en) * | 2018-10-19 | 2019-02-19 | 中铁第四勘察设计院集团有限公司 | A kind of the interface waterproof construction and interface method for waterproofing of new-old concrete |
| CN112609746A (en) * | 2020-12-11 | 2021-04-06 | 中国建筑第五工程局有限公司 | New and old basement joint concrete waterproof component and construction method thereof |
| CN112982694A (en) * | 2021-02-24 | 2021-06-18 | 无锡市东方雨虹防水工程有限公司 | Waterproof structure and construction method for basement extension building junction structure |
| CN216130188U (en) * | 2021-06-02 | 2022-03-25 | 中建四局第一建设有限公司 | Waterproof construction of new and old structure junction |
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| Publication number | Publication date |
|---|---|
| CN115142468B (en) | 2024-03-29 |
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