CN114775698A - Garage side wall foundation pit backfill structure and construction method - Google Patents
Garage side wall foundation pit backfill structure and construction method Download PDFInfo
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- CN114775698A CN114775698A CN202210609670.8A CN202210609670A CN114775698A CN 114775698 A CN114775698 A CN 114775698A CN 202210609670 A CN202210609670 A CN 202210609670A CN 114775698 A CN114775698 A CN 114775698A
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000010410 layer Substances 0.000 claims abstract description 103
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 59
- 239000010959 steel Substances 0.000 claims abstract description 59
- 239000002689 soil Substances 0.000 claims abstract description 28
- 239000011241 protective layer Substances 0.000 claims abstract description 18
- 239000011083 cement mortar Substances 0.000 claims description 16
- 239000010426 asphalt Substances 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000012945 sealing adhesive Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000001133 acceleration Effects 0.000 abstract description 4
- 239000004519 grease Substances 0.000 description 2
- 239000004590 silicone sealant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural 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 garage side wall foundation pit backfilling structure which comprises a post-cast strip concrete layer, old wall concrete connected with the post-cast strip concrete layer and a protective layer assembly arranged at the front ends of the old wall concrete and the post-cast strip concrete layer; the old wall concrete comprises old wall left concrete arranged on the left side of the post-cast strip concrete layer and old wall right concrete arranged on the right side of the post-cast strip concrete layer, and the protective layer assembly extends from the old wall left concrete layer to the old wall right concrete layer; this technical scheme's foundation ditch backfill structure, through the protective layer subassembly at post-cast strip concrete layer front end, guaranteed old wall concrete and post-cast strip layer structure can not receive the influence because of the garage foundation ditch backfill construction, through the connection setting of retaining soil steel sheet and locating lever and horizontal vaulting pole for protective layer subassembly structural strength obtains guaranteeing, has satisfied the foundation ditch and has backfilled the construction and not receive post-cast strip pouring time's influence, very big acceleration the construction progress.
Description
Technical Field
The invention relates to the field of building construction, in particular to a garage side wall foundation pit backfill structure and a construction method.
Background
And (3) sealing the post-cast strip of the garage side wall constructed at the present stage after the age of concrete on two sides of the post-cast strip reaches 45d, or pouring after the main body structure is capped.
For the position of the post-cast strip of the basement outer wall, in order to ensure the construction progress and the site construction safety, reduce the occurrence probability of safety accidents, and simultaneously consider the influence of rainy seasons on the construction site, the garage side wall is required to be backfilled as early as possible before the post-cast strip concrete completes the construction stability, so as to ensure the subsequent normal pouring and sealing of the post-cast strip; because the post-cast strip concrete needs to wait for a longer time period, a side wall foundation pit backfill structure which saves construction time needs to be designed, and construction progress is ensured.
Therefore, in order to solve the above problems, a backfill structure for the side wall foundation pit of the garage is needed.
Disclosure of Invention
In view of this, this technical scheme's foundation ditch structure of backfilling through the protective layer subassembly at post-cast strip concrete layer front end, has guaranteed that old wall concrete and post-cast strip layer structure can not receive the influence because of the garage foundation ditch construction of backfilling, through the connection setting of retaining steel sheet and locating lever and horizontal vaulting pole for protective layer subassembly structural strength obtains guaranteeing, has satisfied the foundation ditch and has backfilled the construction and not receive the influence of post-cast strip pouring time, very big acceleration the construction progress.
A garage side wall foundation pit backfilling structure comprises a post-pouring belt concrete layer, old wall concrete connected with the post-pouring belt concrete layer and a protective layer assembly arranged at the front ends of the old wall concrete and the post-pouring belt concrete layer; the old wall concrete is including setting up in the left old wall left concrete of post-cast strip concrete layer and setting up in the right old wall concrete on post-cast strip concrete layer right side, the protection layer subassembly extends to old wall right concrete layer from old wall left concrete layer.
Further, the inoxidizing coating subassembly is including setting up the fender native steel sheet on the preceding terminal surface of post-cast strip concrete layer, wearing to locate old wall concrete and tip and extending to the locating lever on keeping off the native steel sheet and setting up in the extrusion molding sheet layer of fender native steel sheet front end, the locating lever is including setting up the left side locating lever in old wall left side concrete and setting up the right side locating lever in old wall right side concrete, left side locating lever with have the locating lever for post-cast strip concrete layer symmetrical arrangement.
Furthermore, the protective layer assembly further comprises a plurality of transverse supporting rods, and the plurality of transverse supporting rods are arranged on the soil retaining steel plate in parallel.
Further, be provided with the modified asphalt layer between fender soil steel sheet and the extrusion molding sheet layer, the modified asphalt layer thickness is 3-5 mm.
Further, a cement mortar leveling layer is arranged at the front end of the old wall right concrete, and the thickness of the cement mortar leveling layer is 18-22 mm.
Furthermore, a sealing gap is formed between the front end of the right concrete of the old wall and the retaining steel plate, and a weather-resistant silicone sealing adhesive layer is formed in the sealing gap by pouring.
A construction method for a backfill structure of a garage side wall foundation pit comprises the following steps:
s1: removing residues at the left end and the right end of a post-cast strip concrete layer, and performing concrete chiseling treatment after the residues are removed;
s2: marking a left control line vertical to the length direction of the left concrete of the old wall at the position, 140-160mm away from the left end face of the concrete layer of the post-cast strip, of the left concrete of the old wall; marking a right control line vertical to the length direction of the right concrete of the old wall at a position 140-160mm away from the right end surface of the concrete layer of the post-cast strip;
s3: installing a soil retaining steel plate on a concrete layer of the post-cast strip, respectively installing positioning rods at the left control line and the right control line, and simultaneously enabling the positioning rods to penetrate through the soil retaining steel plate;
s4: after the positioning rod is installed, welding the positioning rod and the retaining steel plate, cutting off the part of the positioning rod extending out of the retaining steel plate after welding, and polishing a welding seam;
s5: welding transverse support rods on the soil retaining steel plate, wherein the transverse support rods are uniformly distributed along the soil retaining steel plate;
s6: cement mortar leveling layers of 18-22mm are respectively coated on the front end surfaces of the right old wall concrete and the left old wall concrete by adopting cement mortar construction in a ratio of 1: 2;
s7: coating a modified asphalt waterproof layer with the thickness of 4mm on the cement mortar leveling layer and the surface of the soil-retaining steel plate, and scraping waterproof factice with the thickness of 3mm on the modified asphalt waterproof layer after the coating is finished;
s8: after the completion of the step S7, an extruded sheet having a thickness of 4 to 6mm is attached to the outer layer of the waterproof paste.
The invention has the beneficial effects that: this technical scheme's foundation ditch backfill structure, through the protective layer subassembly at post-cast strip concrete layer front end, guaranteed old wall concrete and post-cast strip layer structure can not receive the influence because of the garage foundation ditch backfill construction, through the connection setting of retaining soil steel sheet and locating lever and horizontal vaulting pole for protective layer subassembly structural strength obtains guaranteeing, has satisfied the foundation ditch and has backfilled the construction and not receive post-cast strip pouring time's influence, very big acceleration the construction progress.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
FIG. 1 is a schematic view of the overall structure of the present invention (in a top view); as shown in the figure, the garage side wall foundation pit backfilling structure comprises a post-cast strip concrete layer 1, old wall concrete connected with the post-cast strip concrete layer, and a protective layer assembly arranged at the front ends of the old wall concrete and the post-cast strip concrete layer; the old wall concrete comprises old wall left concrete 2 arranged on the left side of the post-cast strip concrete layer 1 and old wall right concrete 3 arranged on the right side of the post-cast strip concrete layer, the protective layer assembly extends from the old wall left concrete layer 2 to the old wall right concrete layer 3, and the old wall left concrete layer 2 and the old wall right concrete layer 3 are of the same structure; this technical scheme's foundation ditch backfill structure, through the protective layer subassembly at post-cast strip concrete layer front end, guaranteed that old wall concrete and post-cast strip layer structure can not receive the influence because of the garage foundation ditch backfill construction, set up through the connection of retaining steel sheet and locating lever and horizontal vaulting pole for protective layer subassembly structural strength obtains guaranteeing, has satisfied the foundation ditch and has backfilled the construction and not receive the influence of post-cast strip pouring time, very big acceleration the construction progress.
In this embodiment, the inoxidizing coating subassembly is including setting up retaining soil steel sheet 5 on the terminal surface before post-cast strip concrete layer 1 (preceding is vertical direction is preceding downwards in figure 1, and vertical direction upwards is the back), wears to locate old wall concrete and tip and extends to the locating lever on retaining soil steel sheet 5 and set up in the extrusion molding sheet layer 7 who keeps off soil steel sheet 5 front end, the locating lever is including setting up the left side locating lever in old wall left side concrete and setting up the right side locating lever in old wall right side concrete, the left side locating lever with have the locating lever for 1 symmetrical arrangement of post-cast strip concrete layer. Retaining wall steel sheet 5 adopts the steel sheet that 6mm is thick, evenly arranges along the direction of height of wall body, and left side locating lever and right side locating lever structure are the same all adopt expansion bolts, certainly along the wall body direction of height, all install expansion bolts on every retaining wall steel sheet left and right ends for fix retaining wall steel sheet 5 at post-cast strip concrete layer anterior segment, play the skeleton support effect.
In this embodiment, the protective layer assembly further includes a plurality of transverse supporting rods 4, and the plurality of transverse supporting rods 4 are arranged in parallel on the soil retaining steel plate 5. Horizontal vaulting pole 4 is even equidistant respectively on retaining soil steel sheet 5, plays the additional strengthening to retaining soil steel sheet 5, prevents that follow-up backfill construction from strikeing retaining soil steel sheet 5 so that warp.
In this embodiment, be provided with modified asphalt layer 6 between soil retaining steel sheet 5 and the extrusion molding sheet layer 7, modified asphalt layer 6 thickness is 3-5 mm. The modified asphalt layer 6 is coated on the surface of the soil retaining steel plate 5 to play a role of water resistance.
In the embodiment, a cement mortar leveling layer 10 is arranged at the front end of the old wall right concrete 3, and the thickness of the cement mortar leveling layer 10 is 18-22 mm. Of course, the front end of the left concrete 2 of the old wall is also provided with a cement mortar leveling layer 10.
In this embodiment, a sealing gap is formed between the front end of the right concrete of the old wall and the retaining steel plate, and a weather-resistant silicone sealant layer 9 is poured into the sealing gap.
A construction method for a backfill structure of a garage side wall foundation pit comprises the following steps:
s1: removing residues at the left end and the right end of the post-cast strip concrete layer 1, and performing concrete chiseling treatment after the residues are removed;
s2: marking a left control line vertical to the length direction (namely the horizontal direction in the figure 1) of the left concrete of the old wall at the position 140-160mm away from the left end surface of the concrete layer 1 of the post-cast strip; marking a right control line vertical to the length direction of the right concrete of the old wall at a position 140-160mm away from the right end surface of the concrete layer of the post-cast strip; two end surfaces of the post-cast concrete layer 1, namely wave lines in the drawing, are marked after left and right control lines are marked, so that the expansion bolts can be conveniently positioned and installed in the next step, and two ends of the post-cast concrete layer 1 are also provided with steel plate water stops 8;
s3: installing a soil retaining steel plate 5 on a concrete layer of the post-pouring belt, and respectively installing positioning rods at the left control line and the right control line, wherein the positioning rods need to penetrate through the soil retaining steel plate; the positioning rod only needs to adopt an expansion bolt, and the expansion bolt needs to penetrate through the outer surface of the soil retaining steel plate 5 after being installed, and then is locked by a nut to temporarily position and install the soil retaining steel plate 5;
s4: after the positioning rod is installed, welding the positioning rod and the retaining steel plate, cutting off the part of the positioning rod extending out of the retaining steel plate after welding, and polishing a welding seam; after all the expansion bolts are installed in place, welding treatment is carried out, one nut needs to be removed during welding, and one expansion bolt needs to be welded, so that the stability of the installation of the integral structure of the soil retaining steel plate is ensured;
s5: welding transverse support rods 4 on the soil retaining steel plate 5, wherein the transverse support rods 4 are uniformly distributed along the soil retaining steel plate; the back of the retaining steel plate 5 is welded with the transverse stay bar 4, so that the structural strength of the retaining steel plate 5 is improved, and the retaining steel plate is prevented from being easily deformed when being impacted;
s6: cement mortar leveling layers of 18-22mm are smeared on the front end surfaces of the right old wall concrete 3 and the left old wall concrete 2 in a ratio of 1: 2; the cement mortar is adopted in a ratio of 1:2, and the preferable thickness of the leveling layer of the cement mortar is 20 mm;
s7: coating a modified asphalt waterproof layer with the thickness of 4mm on the surfaces of the cement mortar leveling layer 10 and the retaining steel plate 5, and scraping waterproof factice with the thickness of 3mm on the modified asphalt waterproof layer after the coating is finished; the waterproof performance of the modified asphalt waterproof layer and the waterproof grease layer is ensured to meet the use requirement through construction of the modified asphalt waterproof layer and the waterproof grease layer; a gap formed between the front end of the old wall concrete and the retaining steel plate also needs to be poured with weather-proof silicone sealant;
s8: after the completion of the step S7, an extruded sheet 7 having a thickness of 4 to 6mm is mounted on the outer layer of the waterproof paste.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. The utility model provides a garage side wall foundation ditch backfill structure which characterized in that: the concrete layer of the post-cast strip, old wall concrete connected with the concrete layer of the post-cast strip and a protective layer assembly arranged at the front ends of the old wall concrete and the concrete layer of the post-cast strip are included; the old wall concrete comprises old wall left concrete arranged on the left side of the post-cast strip concrete layer and old wall right concrete arranged on the right side of the post-cast strip concrete layer, and the protective layer assembly extends to the old wall right concrete layer from the old wall left concrete layer.
2. The garage side wall foundation pit backfill structure according to claim 1, characterized in that: the inoxidizing coating subassembly is including setting up the fender native steel sheet on the terminal surface before the post-cast strip concrete layer, wearing to locate old wall concrete and tip extend to the locating lever on the fender native steel sheet and set up in the extrusion molding sheet layer of fender native steel sheet front end, the locating lever is including setting up the left side locating lever in old wall left concrete and setting up the right side locating lever in old wall right concrete, left side locating lever with have the locating lever for post-cast strip concrete layer symmetrical arrangement.
3. The garage side wall foundation pit backfill structure according to claim 2, wherein: the protective layer assembly further comprises transverse supporting rods, and the transverse supporting rods are arranged on the soil retaining steel plate in a mode that the transverse supporting rods are multiple and multiple transverse supporting rods are parallel to each other.
4. The garage side wall foundation pit backfill structure according to claim 2, characterized in that: a modified asphalt layer is arranged between the soil retaining steel plate and the extrusion molding plate layer, and the thickness of the modified asphalt layer is 3-5 mm.
5. The garage side wall foundation pit backfill structure according to claim 2, characterized in that: and a cement mortar leveling layer is arranged at the front end of the right concrete of the old wall, and the thickness of the cement mortar leveling layer is 18-22 mm.
6. The garage side wall foundation pit backfill structure according to claim 2, characterized in that: a sealing gap is formed between the front end of the right concrete of the old wall and the retaining steel plate, and a weather-resistant silicone sealing adhesive layer is formed in the sealing gap in a pouring mode.
7. A construction method for a garage side wall foundation pit backfill structure is characterized by comprising the following steps: the method comprises the following steps:
s1: removing residues at the left end and the right end of a post-cast strip concrete layer, and performing concrete chiseling treatment after the residues are removed;
s2: marking a left control line vertical to the length direction of the left concrete of the old wall at a position 140-160mm away from the left end face of the concrete layer of the post-cast strip; marking a right control line vertical to the length direction of the right concrete of the old wall at a position 140-160mm away from the right end surface of the concrete layer of the post-cast strip;
s3: installing a retaining steel plate on a concrete layer of the post-pouring belt, respectively installing positioning rods at the left control line and the right control line, and simultaneously enabling the positioning rods to penetrate through the retaining steel plate;
s4: after the positioning rod is installed, welding the positioning rod and the retaining steel plate, cutting off the part of the positioning rod extending out of the retaining steel plate after welding, and polishing the welding line;
s5: welding transverse support rods on the soil retaining steel plate, wherein the transverse support rods are uniformly distributed along the soil retaining steel plate;
s6: smearing 18-22mm leveling layers on the front end surfaces of the right concrete and the left concrete of the old wall by adopting cement mortar construction in a ratio of 1: 2;
s7: coating a modified asphalt waterproof layer with the thickness of 4mm on the cement mortar leveling layer and the surface of the soil-retaining steel plate, and scraping waterproof factice with the thickness of 3mm on the modified asphalt waterproof layer after the coating is finished;
s8: and after the step S7 is completed, installing an extruded board with the thickness of 4-6mm on the outer layer of the waterproof factice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210609670.8A CN114775698A (en) | 2022-05-31 | 2022-05-31 | Garage side wall foundation pit backfill structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210609670.8A CN114775698A (en) | 2022-05-31 | 2022-05-31 | Garage side wall foundation pit backfill structure and construction method |
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| CN114775698A true CN114775698A (en) | 2022-07-22 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202099816U (en) * | 2011-05-11 | 2012-01-04 | 江苏南通三建集团有限公司 | Prefabricated waterproof and soil-blocking plate for later poured band of outer wall of basement |
| CN210151989U (en) * | 2019-04-11 | 2020-03-17 | 中建二局第三建筑工程有限公司 | Basement waterproof structure |
| DE202020106398U1 (en) * | 2020-09-23 | 2020-11-19 | No.4 Engineering Co., Ltd Of China Railway No. 9 Group | Waterproof side wall structure for subway stations |
| CN214090006U (en) * | 2020-12-14 | 2021-08-31 | 广西地矿建设集团有限公司 | Basement lateral wall post-cast strip block structure |
| CN113622464A (en) * | 2021-08-19 | 2021-11-09 | 中国十七冶集团有限公司 | Anti-cracking waterproof construction process for basement outer wall post-cast strip |
| CN217399741U (en) * | 2022-05-31 | 2022-09-09 | 中冶建工集团有限公司 | Garage side wall construction structure |
-
2022
- 2022-05-31 CN CN202210609670.8A patent/CN114775698A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202099816U (en) * | 2011-05-11 | 2012-01-04 | 江苏南通三建集团有限公司 | Prefabricated waterproof and soil-blocking plate for later poured band of outer wall of basement |
| CN210151989U (en) * | 2019-04-11 | 2020-03-17 | 中建二局第三建筑工程有限公司 | Basement waterproof structure |
| DE202020106398U1 (en) * | 2020-09-23 | 2020-11-19 | No.4 Engineering Co., Ltd Of China Railway No. 9 Group | Waterproof side wall structure for subway stations |
| CN214090006U (en) * | 2020-12-14 | 2021-08-31 | 广西地矿建设集团有限公司 | Basement lateral wall post-cast strip block structure |
| CN113622464A (en) * | 2021-08-19 | 2021-11-09 | 中国十七冶集团有限公司 | Anti-cracking waterproof construction process for basement outer wall post-cast strip |
| CN217399741U (en) * | 2022-05-31 | 2022-09-09 | 中冶建工集团有限公司 | Garage side wall construction structure |
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