CN113323025A - Leaking stoppage treatment method for horizontal parting line of foundation pit bottom plate - Google Patents
Leaking stoppage treatment method for horizontal parting line of foundation pit bottom plate Download PDFInfo
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- CN113323025A CN113323025A CN202110570472.0A CN202110570472A CN113323025A CN 113323025 A CN113323025 A CN 113323025A CN 202110570472 A CN202110570472 A CN 202110570472A CN 113323025 A CN113323025 A CN 113323025A
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- bottom plate
- horizontal
- foundation pit
- seam
- grouting
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- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000011440 grout Substances 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 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
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/22—Lining sumps in trenches or other foundation pits
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a method for treating the leakage stoppage of a horizontal parting seam of a foundation pit bottom plate, which comprises the steps of forming a water collecting hole pit on the upper surface of the bottom plate, on one hand, collecting leaked or poured accumulated water, on the other hand, drilling a plurality of grouting holes with different inclination angles in the water collecting hole pit, penetrating the bottom plate through the grouting holes, and penetrating partial grout after grouting into the upper side of the horizontal parting seam along the hole wall in the middle of the grouting holes penetrating the horizontal parting seam so as to seal the horizontal parting seam and seal the seam for stopping leakage; part of the slurry penetrates through the bottom plate and is sealed and plugged upwards from the lower port of the horizontal layer split along the lower edge of the bottom plate; part of the slurry and the gap under the bottom plate are leaked to discharge the slurry, so that the water is blocked. The method for plugging the horizontal parting seam of the foundation pit bottom plate seals the horizontal parting seam through a plurality of angles, a plurality of positions and a plurality of directions. The invention solves the problem of poor plugging effect of the traditional basement bottom plate crack plugging method.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a method for plugging a horizontal layer joint of a foundation pit bottom plate.
Background
The basement bottom plate concrete structures such as a water collecting well pit, an elevator well pit, a post-cast strip, a settlement joint and the like have insufficient strength of the bottom plate of the water collecting well due to incompact solidification caused by large-area layered casting and tamping, underground pressure water soaking in the bottom plate concrete casting process, insufficient strength of water-soaked concrete, cracking and leakage, cold joints and leakage of construction joints of the post-cast strip. The specific location of the horizontal layer seam in a floor leak is also not precisely ascertainable.
The traditional method for plugging the cracks of the bottom plate is to open a V-shaped groove on the upper side of the cracks of the bottom plate, the V-shaped groove is arranged along the length direction of the cracks of the bottom plate, and then cement slurry is prepared and poured into the V-shaped groove to plug the cracks of the bottom plate, so that the effects of water plugging and leakage stopping are achieved. The traditional bottom plate crack plugging method has poor plugging effect.
Disclosure of Invention
In order to overcome the defects in the prior art, a method for treating the horizontal layer seam leakage stoppage of the foundation pit bottom plate is provided so as to solve the problem of poor leakage stoppage effect of the traditional basement bottom plate seam leakage stoppage method.
In order to achieve the aim, the method for treating the horizontal parting line leakage stoppage of the foundation pit bottom plate comprises the following steps:
determining the position of a horizontal layer seam of a foundation pit bottom plate;
a plurality of water collecting hole pits are formed in the upper surface of the foundation pit bottom plate, and are arranged around the horizontal layer seam at intervals;
a plurality of grouting holes are formed in each water collecting hole pit, the grouting holes penetrate through the foundation pit bottom plate, the grouting holes and the horizontal layer joints are arranged at an angle, the grouting holes are arranged at intervals along the depth direction of the horizontal layer joints, and part of the grouting holes penetrate through the horizontal layer joints;
and installing grouting heads in each grouting hole, upwards grouting and plugging the lower side of the horizontal layering seam through partial grouting heads of the grouting holes aiming at the lower port of the horizontal layering seam, plugging the upper side of the horizontal layering seam through the grouting slurry in the grouting holes penetrating through the horizontal layering seam, upwards grouting and plugging the lower surface of the foundation pit bottom plate near the lower port of the horizontal layering seam through partial grouting heads of the grouting holes, and enabling the slurry to form a sealing layer taking the lower port of the horizontal layering seam as the center on the lower surface of the foundation pit bottom plate.
Further, when the step of determining the position of the horizontal layer joint of the foundation pit bottom plate is implemented, a cofferdam is arranged on the foundation pit bottom plate with water to remove the water accumulated on the foundation pit bottom plate, and the foundation pit bottom plate is cleaned to determine the position of the horizontal layer joint at the bottom of the foundation pit.
Furthermore, the outer diameter of the water collecting hole pit is 100 mm-300 mm.
Furthermore, the depth of the water collecting hole pit is 100 mm-300 mm.
Furthermore, the distance between two adjacent water collecting hole pits is 450-2000 mm.
Further, the water collecting hole pits are perpendicular to the horizontal layer seams.
Further, after grouting is completed in the grouting holes, plugging slurry is poured into the water collecting hole pits to seal the water collecting hole pits.
The foundation pit bottom plate horizontal layered seam leakage stoppage treatment method has the advantages that the water collecting hole is formed in the upper surface of the bottom plate, on one hand, leaked or gushed accumulated water is collected, on the other hand, a plurality of grouting holes with different inclination angles are drilled in the water collecting hole, the grouting holes penetrate through the bottom plate, and after grouting, partial grout penetrates into the upper side of the horizontal layered seam along the hole wall in the middle of the grouting holes penetrating through the horizontal layered seam to block the horizontal layered seam and close the seam for leakage stoppage; part of the slurry penetrates through the bottom plate and is sealed and plugged upwards from the lower port of the horizontal layer split along the lower edge of the bottom plate; part of the slurry and the gap under the bottom plate are leaked to discharge the slurry, so that the water is blocked. According to the foundation pit bottom plate horizontal parting seam plugging treatment method, the horizontal parting seam is plugged through multiple angles, multiple positions and multiple directions, the plugging efficiency is high, and the plugging effect is good.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 to 5 are schematic diagrams of steps of a method for treating horizontal layer seam leakage of a foundation pit floor according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 5, the invention provides a method for treating horizontal layer seam leakage stoppage of a foundation pit floor, which comprises the following steps:
s1: and determining the position of the horizontal layering seam 3 of the foundation pit bottom plate 1.
In this embodiment, the foundation pit floor 1 is cast on the waterproof layer 2 of the bed course.
Specifically, step S1 includes:
and S11, arranging a cofferdam on the foundation pit bottom plate 1 with accumulated water or leakage to drain the accumulated water on the foundation pit bottom plate 1.
And S12, after accumulated water in the foundation pit bottom plate is removed, cleaning the foundation pit bottom plate 1, and analyzing the reason of water leakage to determine the position of the horizontal layering seam 3 at the bottom of the foundation pit.
S2: a plurality of water collecting hole pits 4 are formed in the upper surface of the foundation pit bottom plate 1, and the water collecting hole pits 4 are arranged around the horizontal layer seam 3 at intervals.
When step S2 is performed, the outside diameter of sump 4 is 100mm to 300 mm. The depth of the water collecting hole 4 is 100 mm-300 mm. The distance between two adjacent water collecting hole pits 4 is 450 mm-2000 mm.
In a preferred embodiment, the water collection wells are round or square wells. The water collecting hole pit is along the direction of the horizontal layer seam or vertical to the direction of the horizontal layer seam.
The water collecting hole pit is arranged in the range of the cofferdam, seepage water in the range of the cofferdam flows to the water collecting hole pit, and then gathered water is drained from the water collecting hole pit.
S3: a plurality of grouting holes 5 are formed in each water collecting hole pit 4, the grouting holes 5 penetrate through the foundation pit bottom plate 1, the grouting holes 5 and the horizontal layering seams 3 are arranged at an angle, the grouting holes 5 are arranged at intervals along the depth direction of the horizontal layering seams 3, and part of the grouting holes 5 penetrate through the horizontal layering seams 3.
In the embodiment, the water collecting hole pit is drilled by a large drill bit, and the bottom plate is not drilled; and drilling a grouting hole through the bottom plate by using a small drill (the size of the grouting head).
A plurality of grouting holes can be drilled in the same water collecting hole pit along different directions, and the grouting holes are obliquely arranged. The concrete inclined hinge joint of the grouting hole ranges from-45 degrees to 45 degrees.
S4: and a grouting head 6 is arranged in each grouting hole 5, the grouting head 6 of a part of the grouting holes 5 is aligned with the lower port of the horizontal layer joint 3 and upwards grouted to seal the lower side of the horizontal layer joint 3, the grouting slurry in the grouting holes 5 penetrating through the horizontal layer joint 3 seals the upper side of the horizontal layer joint 3, and the grouting head 6 of a part of the grouting holes 5 upwards grouted to seal the lower surface of the foundation pit bottom plate 1 near the lower port of the horizontal layer joint 3, so that the grouting liquid forms a sealing layer taking the lower port of the horizontal layer joint 3 as the center on the lower surface of the foundation pit bottom plate 1.
In this embodiment, as shown in fig. 5, the slurry is poured in three directions a, the first direction a (located at the left side in the figure) is downward, forward and upward through the bottom plate; the second flow direction a (located at the middle position in the figure) enters between the concrete and the waterproof layer and moves forwards and backwards along the horizontal seam; the third flow direction a (at the right in the figure) is downward, forward, upward, into the horizontal slot.
The pressure slurry in the middle of the first hole and the second hole can enter the horizontal crack
S5: after grouting is completed in the grouting holes 5, plugging slurry is poured into the water collecting hole pits 4 to seal the water collecting hole pits 4.
According to the foundation pit bottom plate horizontal layered seam leakage stopping treatment method, a water collecting hole pit is formed in the upper surface of a bottom plate, on one hand, leaked or gushed accumulated water is collected, on the other hand, a plurality of grouting holes with different inclination angles are drilled in the water collecting hole pit, the grouting holes penetrate through the bottom plate, and after grouting, partial grout penetrates into the upper side of the horizontal layered seam along the hole wall in the middle of the grouting holes penetrating through the horizontal layered seam to stop the horizontal layered seam and close the seam for leakage stopping; part of the slurry penetrates through the bottom plate and is sealed and plugged upwards from the lower port of the horizontal layer split along the lower edge of the bottom plate; part of the slurry and the gap under the bottom plate are leaked to discharge the slurry, so that the water is blocked. The method for plugging the horizontal parting seam of the foundation pit bottom plate has the advantages that the horizontal parting seam is plugged in multiple angles, multiple positions and multiple directions, the plugging efficiency is high, and the plugging effect is good.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (7)
1. A method for plugging a horizontal parting seam of a foundation pit bottom plate is characterized by comprising the following steps:
determining the position of a horizontal layer seam of a foundation pit bottom plate;
a plurality of water collecting hole pits are formed in the upper surface of the foundation pit bottom plate, and are arranged around the horizontal layer seam at intervals;
a plurality of grouting holes are formed in each water collecting hole pit, the grouting holes penetrate through the foundation pit bottom plate, the grouting holes and the horizontal layer joints are arranged at an angle, the grouting holes are arranged at intervals along the depth direction of the horizontal layer joints, and part of the grouting holes penetrate through the horizontal layer joints;
and installing grouting heads in each grouting hole, upwards grouting and plugging the lower side of the horizontal layering seam through partial grouting heads of the grouting holes aiming at the lower port of the horizontal layering seam, plugging the upper side of the horizontal layering seam through the grouting slurry in the grouting holes penetrating through the horizontal layering seam, upwards grouting and plugging the lower surface of the foundation pit bottom plate near the lower port of the horizontal layering seam through partial grouting heads of the grouting holes, and enabling the slurry to form a sealing layer taking the lower port of the horizontal layering seam as the center on the lower surface of the foundation pit bottom plate.
2. The method for plugging and treating the horizontal parting line of the foundation pit bottom plate according to claim 1, wherein in the step of determining the position of the horizontal parting line of the foundation pit bottom plate, a cofferdam is arranged on the foundation pit bottom plate where water is accumulated to remove the water accumulated on the foundation pit bottom plate, and the foundation pit bottom plate is cleaned to determine the position of the horizontal parting line of the foundation pit bottom.
3. The foundation pit bottom plate horizontal parting leak stopping treatment method according to claim 1, wherein the outer diameter of the water collecting hole pit is 100 mm-300 mm.
4. The foundation pit floor horizontal split seam plugging treatment method according to claim 3, wherein the depth of the water collecting hole pit is 100 mm-300 mm.
5. The method for plugging and treating the horizontal layer seam of the foundation pit bottom plate according to claim 4, wherein the distance between two adjacent water collecting hole pits is 450-2000 mm.
6. The method for plugging and treating the horizontal parting line of the foundation pit floor according to claim 1, wherein the water collecting hole pit is perpendicular to the horizontal parting line.
7. The method for plugging a horizontal layer seam of a foundation pit floor according to claim 1, further comprising pouring plugging slurry into the pit to close the pit after grouting is completed in the grouting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110570472.0A CN113323025A (en) | 2021-05-25 | 2021-05-25 | Leaking stoppage treatment method for horizontal parting line of foundation pit bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110570472.0A CN113323025A (en) | 2021-05-25 | 2021-05-25 | Leaking stoppage treatment method for horizontal parting line of foundation pit bottom plate |
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| CN113323025A true CN113323025A (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110570472.0A Pending CN113323025A (en) | 2021-05-25 | 2021-05-25 | Leaking stoppage treatment method for horizontal parting line of foundation pit bottom plate |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004251009A (en) * | 2003-02-20 | 2004-09-09 | Shimizu Corp | High-pressure injection water cutoff method using water cutoff material composed of hydrophilic one-component polyurethane prepolymer, and the material |
| CN1840856A (en) * | 2005-03-30 | 2006-10-04 | 中国矿业大学 | Bottom plate concealed type reverse-arc grouting construction method |
| KR100878485B1 (en) * | 2008-10-01 | 2009-01-13 | 주식회사 아키벤 | Leakage crack repair method on a concrete structure, with inject between construction layer |
| CN106593300A (en) * | 2016-12-02 | 2017-04-26 | 淮北矿业股份有限公司 | Thin-layer limestone ground directional drilling horizontal multi-stage branch grouting drill hole |
| CN109973117A (en) * | 2019-02-26 | 2019-07-05 | 倪念红 | A kind of structure structure fracture plugging reinforcement means |
-
2021
- 2021-05-25 CN CN202110570472.0A patent/CN113323025A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004251009A (en) * | 2003-02-20 | 2004-09-09 | Shimizu Corp | High-pressure injection water cutoff method using water cutoff material composed of hydrophilic one-component polyurethane prepolymer, and the material |
| CN1840856A (en) * | 2005-03-30 | 2006-10-04 | 中国矿业大学 | Bottom plate concealed type reverse-arc grouting construction method |
| KR100878485B1 (en) * | 2008-10-01 | 2009-01-13 | 주식회사 아키벤 | Leakage crack repair method on a concrete structure, with inject between construction layer |
| CN106593300A (en) * | 2016-12-02 | 2017-04-26 | 淮北矿业股份有限公司 | Thin-layer limestone ground directional drilling horizontal multi-stage branch grouting drill hole |
| CN109973117A (en) * | 2019-02-26 | 2019-07-05 | 倪念红 | A kind of structure structure fracture plugging reinforcement means |
Non-Patent Citations (1)
| Title |
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| 高静等: "化学灌浆在混凝土裂缝止水堵漏中的应用", 《中国高新技术企业》 * |
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Application publication date: 20210831 |