CN113774925A - Construction method of horizontal internal support conversion structure of deep foundation pit fender post - Google Patents
Construction method of horizontal internal support conversion structure of deep foundation pit fender post Download PDFInfo
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- CN113774925A CN113774925A CN202111176663.5A CN202111176663A CN113774925A CN 113774925 A CN113774925 A CN 113774925A CN 202111176663 A CN202111176663 A CN 202111176663A CN 113774925 A CN113774925 A CN 113774925A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 53
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 11
- 239000011381 foam concrete Substances 0.000 claims description 19
- 239000003337 fertilizer Substances 0.000 claims description 13
- 239000004567 concrete Substances 0.000 claims description 6
- 238000004078 waterproofing Methods 0.000 claims description 2
- 239000011150 reinforced concrete Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000004873 anchoring Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/16—Auxiliary devices rigidly or detachably arranged on sheet piles for facilitating assembly
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- Engineering & Computer Science (AREA)
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- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a construction method of a horizontal internal support conversion structure of a deep foundation pit fender post, which comprises the following steps: 1) constructing a floor slab upright post foundation pile at the bottom of the deep foundation pit; 2) binding reinforcing steel bars of a first longitudinal floor girder, a first transverse floor girder and a first ring girder at the top of a first floor column, and installing a steel pipe column support system close to the fender post; 3) dismantling a horizontal inner support I in the deep foundation pit, and constructing a basement outer wall I on the inner side of the fender post; 4) a steel pipe upright post supporting system is arranged on the floor slab main beam, and the floor slab upright post I is upwards extended to form a floor slab upright post II; 5) and (5) from bottom to top, gradually converting the piles in a layered mode until all the horizontal internal supports of the deep foundation pit fender post complete conversion construction. The invention has the beneficial effects that: according to the horizontal internal support conversion system, the reinforced concrete horizontal internal support of the original support system is replaced by the longitudinal floor girder, the transverse floor girder and the floor upright post integrated rigid structure, so that the structure is safe and stable and is easy to control.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of a horizontal internal support conversion structure of a deep foundation pit fender pile.
Background
Along with social development and large-scale development of underground buildings, the underground buildings are products of high-speed development of modern cities, play a role in alleviating urban contradictions and improving living environments, and also develop a new living field for human beings. Wherein basements are the more common underground structures. The multi-storey and high-rise buildings need deeper foundations, and in order to utilize the height, a basement is built under the bottom layer of the building, so that the use area is increased, soil backfilling of the center of a house is omitted, and the building is economical. The basement is built below the bottom layer of the house, so that the land efficiency of the building can be improved. Some high-rise building bases are buried deeply, basements are built by fully utilizing the depth, and the economic effect and the using effect are good.
Deep foundation pit engineering is often involved in the underground building construction process, and the horizontal inner support is a common support component of foundation pit support. The reinforced concrete inner support is a transitional support system, and when the engineering reaches a certain degree, the temporary support system can be completely dismantled. How to change the support before dismantling the inner support to ensure the safety of the foundation pit and the normal construction of the basement is a difficult point in the construction of foundation pit support.
Therefore, the construction method of the horizontal internal support conversion structure of the deep foundation pit fender pile, which is reasonable in structure, safe and reliable and can ensure the engineering quality, is urgently needed to be found.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a construction method of a horizontal internal support conversion structure of a deep foundation pit fender post.
The horizontal internal support conversion structure of the deep foundation pit fender pile comprises foam concrete, connecting and tying ribs, a basement bottom plate, a basement outer wall, a floor slab upright post, a longitudinal floor slab main beam, a transverse floor slab main beam, a ring beam, a basement floor slab, a conversion inclined post system and a steel pipe upright post support system; the basement bottom plate is arranged at the bottom of the deep foundation pit, the fender posts are arranged at the side parts of the deep foundation pit, connecting ribs are arranged between the basement bottom plate and the fender posts, the bottom ends of the floor upright posts are arranged in soil at the bottom of the deep foundation pit, the upper parts of the floor upright posts are extended in layers to form a longitudinal floor main beam and a transverse floor main beam, ring beams are arranged between the longitudinal floor main beams and between the transverse floor main beams, connecting ribs are arranged between the longitudinal floor main beam and the transverse floor main beam and between the fender posts, the basement outer wall is positioned at the inner side of the fender posts, the steel pipe upright post supporting system is arranged in a fertilizer groove formed by the fender posts and the basement outer wall, the steel pipe upright post supporting system is tightly attached to the fender posts, inner supporting upright posts are arranged in the deep foundation pit, the conversion inclined post system is arranged on the inner supporting upright posts, and the basement floor is arranged between the longitudinal floor main beam and the transverse floor main beam, the foam concrete is arranged in a fertilizer groove formed by the fender post and the outer wall of the basement.
Preferably, the method comprises the following steps: the conversion batter post system form by connecting otic placode and four conversion batter post bolted connections, the connection otic placode sets up respectively in sectional floor stand and internal stay stand relevant position department, the conversion batter post passes through the bolt to be fixed respectively on sectional floor stand and internal stay stand, every conversion batter post slope sets up between floor stand and internal stay stand.
Preferably, the method comprises the following steps: the steel pipe upright post supporting system comprises a tie bar, steel pipe upright posts, a ribbed bottom plate, a first inclined stay bar, a second inclined stay bar and an anchoring bolt, wherein the bottoms of the steel pipe upright posts are arranged on one side of the ribbed bottom plate, two ends of the first inclined stay bar are respectively connected with the tops of the steel pipe upright posts and the other side of the ribbed bottom plate, two ends of the second inclined stay bar are respectively connected with the middle of the steel pipe upright posts and the other side of the ribbed bottom plate, the ribbed bottom plate is fixed through the anchoring bolt, the tie bar is arranged between the steel pipe upright posts, and the top of each steel pipe upright post supports a transverse floor slab girder.
Preferably, the method comprises the following steps: the floor slab upright post sequentially comprises a floor slab upright post I and a floor slab upright post II from bottom to top; the top of the first floor slab upright post is provided with a first longitudinal floor slab girder, a first transverse floor slab girder and a first ring girder; a first basement floor is arranged between the first longitudinal floor girder and the first transverse floor girder; the top of the second floor column is provided with a second transverse floor girder and a second longitudinal floor girder; and a second basement floor is arranged between the second transverse floor girder and the second longitudinal floor girder.
Preferably, the method comprises the following steps: the basement outer wall sequentially comprises a basement outer wall I and a basement outer wall II from bottom to top.
Preferably, the method comprises the following steps: the internal stay stand includes one section of internal stay stand and two sections of internal stay stand from bottom to top in proper order.
Preferably, the method comprises the following steps: the horizontal internal stay in the deep foundation pit sequentially comprises a horizontal internal stay I and a horizontal internal stay II from bottom to top.
Preferably, the method comprises the following steps: the foam concrete sequentially comprises a foam concrete I and a foam concrete II from bottom to top.
The construction method of the horizontal internal support conversion structure of the deep foundation pit fender post comprises the following steps:
1) constructing a floor slab upright post foundation pile at the bottom of the deep foundation pit, binding reinforcing steel bars of a basement bottom plate and a floor slab upright post I after waterproofing is done on the ground surface of the deep foundation pit, installing connecting ribs at corresponding positions of the fender posts, overlapping and binding the connecting ribs and the reinforcing steel bars of the basement bottom plate together, and pouring concrete to form the basement bottom plate and the floor slab upright post I;
2) binding reinforcing steel bars of a longitudinal floor slab main beam I, a transverse floor slab main beam I and a ring beam I at the top of a floor slab upright post I, simultaneously lapping and binding the reinforcing steel bars with connecting bars arranged at corresponding positions of a fender post I, pouring concrete to form a whole, and then installing a steel pipe upright post supporting system in a fertilizer groove formed between the fender post I and a reserved position of the outer wall of the basement in a manner of clinging to the fender post I;
3) after the steel pipe upright post supporting system is installed, removing a horizontal inner support I in the deep foundation pit, constructing a basement outer wall I on the inner side of the fender post, arranging a conversion inclined post system on the inner support upright post in the deep foundation pit, removing a corresponding section of the inner support upright post positioned at the bottom of the deep foundation pit, constructing a basement floor I between a longitudinal floor girder I and a transverse floor girder I, constructing a floor top post at the position of removing the section of the inner support upright post, replacing the conversion inclined post system, removing the conversion inclined post system and the steel pipe upright post supporting system, and backfilling foam concrete I in a fertilizer tank;
4) similarly, a steel pipe upright post supporting system is installed on the floor slab main beam, the floor slab upright post I is extended upwards to form a floor slab upright post II, a new transverse floor slab main beam II and a new longitudinal floor slab main beam II are constructed on the top of the floor slab upright post II, a corresponding horizontal inner support II is removed, a basement outer wall II is constructed on the upper portion of the basement outer wall I, a conversion inclined post system is arranged on the inner support upright post, a corresponding inner support upright post second section is removed, a basement floor slab II is constructed between the transverse floor slab main beam II and the longitudinal floor slab main beam II again, a floor top post is arranged at the position where the inner support upright post second section is removed, the conversion inclined post system is replaced, the conversion inclined post system and the steel pipe upright post supporting system are removed, and foam concrete II is backfilled in the fertilizer tank;
5) and by analogy, the layer is gradually converted from bottom to top until the horizontal internal support of the deep foundation pit fender post completely completes the conversion construction.
The invention has the beneficial effects that:
1. according to the horizontal internal support conversion system, the reinforced concrete horizontal internal support of the original support system is replaced by the integrated rigid structure of the longitudinal floor girder, the transverse floor girder and the floor stand column, so that the structure is safe and stable and is easy to master, the conflict between the horizontal internal support and the construction of a building structure is effectively solved, the safety and the construction quality of engineering construction are ensured, and the technical benefit advantage is obvious.
2. The conversion inclined column system adopted by the invention has reasonable structure, is easy to connect and disassemble, effectively replaces an inner support upright column of a dismantling section, ensures the safety of underground engineering construction, and saves the construction period for the engineering.
3. The steel pipe upright post supporting system adopted by the invention has reasonable structure and convenient and fast assembly and disassembly, effectively prevents the deep foundation pit supporting system from overturning, and ensures the continuity of construction, thereby saving the construction period and ensuring the engineering construction quality.
Drawings
FIG. 1 is a partial schematic view of a deep foundation pit fender pile before horizontal internal bracing conversion;
FIG. 2 is a partial schematic view of a deep foundation pit fender pile after horizontal internal bracing conversion;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a layout view of a basement floor slab and a first floor column;
FIG. 5 is a layout of a steel tube column support system;
FIG. 6 is a schematic view of a steel tube column support system;
FIG. 7 is a side view of a steel tube column support system;
FIG. 8 is a layout view of a conversion batter post system;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a partial schematic view of the bottom layer after horizontal internal bracing has been converted;
FIG. 11 is a layout diagram of a previous layer of conversion batter post system and a steel pipe upright post support system;
fig. 12 is a partial schematic view of the upper layer of horizontal internal bracing after conversion.
Description of reference numerals: 1-fender post; 2-foam concrete; 3-connecting tie bars; 4-basement floor; 5-basement exterior wall; 6-floor top pillar; 7-floor column; 8-longitudinal floor slab girder; 9-transverse floor slab main beam; 10-ring beam; 11-basement floor; 12-deep foundation pit; 13-internal bracing column; 14-horizontal internal bracing; 15-switching inclined column system; 16-steel tube column support system; 17-basement exterior wall one; 18-horizontal inner support one; 19-inner support column section; 20, a first longitudinal floor slab girder; 21-transverse floor slab girder one; 22-floor column one; 23-foam concrete one; 24-basement floor one; 25-horizontal internal stay two; 26-inner support column two section; 27-basement exterior wall two; 28, longitudinal floor slab girder II; 29-transverse floor slab girder II; 30-floor column II; 31-foam concrete II; 32-basement floor two; 33-tie bar; 34-steel tube column; 35-ribbed floor; 36-diagonal brace one; 37-diagonal bar II; 38-anchoring bolt; 39-ring beam one; 40-connecting ear plate; 41-Change oblique post.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Example one
The horizontal internal bracing conversion structure of the deep foundation pit fender post comprises foam concrete 2, connecting ribs 3, a basement bottom plate 4, a basement outer wall 5, a floor top post 6, a floor upright post 7, a longitudinal floor main beam 8, a transverse floor main beam 9, a ring beam 10, a basement floor 11, a conversion inclined post system 15 and a steel pipe upright post support system 16; the basement bottom plate 4 is arranged at the bottom of the deep foundation pit 12, the fender post 1 is arranged at the side part of the deep foundation pit 12, the connecting ribs 3 are arranged between the basement bottom plate 4 and the fender post 1, the bottom end of the floor post 7 is arranged in soil at the bottom of the deep foundation pit 12, the upper part of the floor post 7 is provided with a longitudinal floor main beam 8 and a transverse floor main beam 9 in a layered and extended manner, ring beams 10 are respectively arranged between the longitudinal floor main beams 8 and the transverse floor main beams 9, the connecting ribs 3 are respectively arranged between the longitudinal floor main beam 8 and the transverse floor main beams 9 and between the longitudinal floor main beam 9 and the fender post 1, the basement outer wall 5 is positioned at the inner side of the fender post 1, the steel pipe upright post supporting system 16 is arranged in a fertilizer groove formed by the fender post 1 and the basement outer wall 5 and is tightly attached to the fender post 1, the inner supporting upright post 13 is arranged in the deep foundation pit 12, the conversion inclined post system 15 is arranged on the inner supporting upright post 13, the basement 11 is arranged between the longitudinal floor main beam 8 and the transverse floor main beam 9, and the foam concrete 2 is arranged in a fertilizer groove formed by the fender post 1 and the basement outer wall 5.
The conversion batter post system 15 is formed by connecting ear plates 40 and four conversion batter posts 41 in a bolted mode, the connecting ear plates 40 are respectively arranged at corresponding positions of the segmented floor slab upright post 7 and the inner support upright post 13, the conversion batter posts 41 are respectively fixed on the segmented floor slab upright post 7 and the inner support upright post 13 through bolts, and each conversion batter post 41 is obliquely arranged between the floor slab upright post 7 and the inner support upright post 13.
The steel pipe upright post supporting system 16 comprises a tie bar 33, steel pipe upright posts 34, a ribbed bottom plate 35, a first inclined support bar 36, a second inclined support bar 37 and an anchoring bolt 38, wherein the bottoms of the steel pipe upright posts 34 are arranged on one side of the ribbed bottom plate 35, two ends of the first inclined support bar 36 are respectively connected with the tops of the steel pipe upright posts 34 and the other side of the ribbed bottom plate 35, two ends of the second inclined support bar 37 are respectively connected with the middle of the steel pipe upright posts 34 and the other side of the ribbed bottom plate 35, the ribbed bottom plate 35 can be fixedly installed through the anchoring bolt 38, the tie bar 33 is arranged between the steel pipe upright posts 34, and the tops of the steel pipe upright posts 34 support the transverse floor main beam 9.
The floor slab upright post 7 sequentially comprises a floor slab upright post I22 and a floor slab upright post II 30 from bottom to top; the top of the first floor column 22 is provided with a first longitudinal floor girder 20, a first transverse floor girder 21 and a first ring girder 39; a first basement floor 24 is arranged between the first longitudinal floor girder 20 and the first transverse floor girder 21; the top of the second floor column 30 is provided with a second transverse floor girder 28 and a second longitudinal floor girder 29; and a second basement floor 32 is arranged between the second transverse floor girder 28 and the second longitudinal floor girder 29.
The basement outer wall 5 sequentially comprises a basement outer wall I17 and a basement outer wall II 27 from bottom to top.
The inner supporting upright post 13 sequentially comprises an inner supporting upright post section 19 and an inner supporting upright post section 26 from bottom to top.
The horizontal inner support 14 in the deep foundation pit 12 sequentially comprises a first horizontal inner support 18 and a second horizontal inner support 25 from bottom to top.
The foam concrete 2 sequentially comprises a first foam concrete 23 and a second foam concrete 31 from bottom to top.
The floor top pillar 6 is constructed at the position where the inner supporting pillar 13 is removed.
Example two
The construction method of the deep foundation pit fender post horizontal internal support conversion structure is characterized in that horizontal internal supports are gradually converted layer by layer, and the construction method comprises the following steps:
1) as shown in fig. 4, a foundation pile of a floor slab upright post 7 is constructed at the bottom of a deep foundation pit 12, after the ground surface of the deep foundation pit 12 is well waterproofed, reinforcing steel bars of a basement bottom plate 4 and a floor slab upright post one 22 are bound, meanwhile, connecting ribs 3 are installed at corresponding positions of fender posts 1 and are lapped and bound with the reinforcing steel bars of the basement bottom plate 4, and then concrete is poured to form the basement bottom plate 4 and the floor slab upright post one 22;
2) as shown in fig. 5, 6 and 7, the top of a first floor column 22 is bound with a first longitudinal floor girder 20, a first transverse floor girder 21 and a first ring girder 39, and simultaneously, the first longitudinal floor girder, the first transverse floor girder 21 and the first ring girder 39 are overlapped and bound with a connecting rib 3 arranged at the corresponding position of a fender post 1, concrete is poured to form a whole, and then a steel pipe column support system 16 is arranged in a fertilizer groove formed between the fender post 1 and a reserved position of a first basement outer wall 17 and clings to the fender post 1;
3) as shown in fig. 8, 9 and 10, after the steel pipe column support system 16 is installed, removing a horizontal inner support first 18 in the deep foundation pit 12, constructing a basement outer wall first 17 on the inner side of the fender post 1, arranging a conversion inclined column system 15 on the inner support column 13 in the deep foundation pit 12, removing a corresponding inner support column section 19 at the bottom of the deep foundation pit 12, constructing a basement floor first 24 between a longitudinal floor girder first 20 and a transverse floor girder first 21, constructing a floor top column 6 at the position of removing the inner support column section 19, replacing the conversion inclined column system 15, removing the conversion inclined column system 15 and the steel pipe column support system 16, and backfilling a foam concrete first 23 in a fertilizer tank;
4) as shown in fig. 11 and 12, similarly, a steel pipe column support system 16 is installed on the floor slab main beam, the floor slab column one 22 is extended upwards to form a floor slab column two 30, a new transverse floor slab main beam two 28 and a new longitudinal floor slab main beam two 29 are constructed on the top of the floor slab column two 30, a corresponding horizontal inner support two 25 is removed, a basement outer wall two 27 is constructed on the upper portion of the basement outer wall one 17, a conversion inclined column system 15 is arranged on the inner support column 13, a corresponding inner support column two section 26 is removed, a basement floor slab second 32 is constructed between the transverse floor slab main beam two 28 and the longitudinal floor slab main beam two 29 again, a floor top column 6 is arranged at the position where the inner support column two section 26 is removed, the conversion inclined column system 15 is replaced, the conversion inclined column system 15 and the steel pipe column support system 16 are removed, and foam concrete second 31 is backfilled in the fertilizer groove;
5) and as shown in fig. 2 and fig. 3, by analogy, the deep foundation pit fender pile is layered and gradually converted from bottom to top until the horizontal internal support 14 of the deep foundation pit fender pile completely completes the conversion construction.
Claims (1)
1. A construction method of a horizontal internal support conversion structure of a deep foundation pit fender pile is characterized by comprising the following steps:
1) constructing a foundation pile of a floor column (7) at the bottom of a deep foundation pit (12), binding reinforcing steel bars of a basement bottom plate (4) and the floor column I (22) after waterproofing is done on the ground surface of the deep foundation pit (12), installing a connecting rib (3) at a corresponding position of a fender post (1), overlapping and binding the connecting rib (3) and the reinforcing steel bars of the basement bottom plate (4), and pouring concrete to form the basement bottom plate (4) and the floor column I (22);
2) binding reinforcing steel bars of a longitudinal floor girder I (20), a transverse floor girder I (21) and a ring girder I (39) at the top of a floor column I (22), simultaneously lapping and binding the reinforcing steel bars with tie bars (3) arranged at corresponding positions of a fender post (1), pouring concrete to form a whole, and then installing a steel pipe column support system (16) clinging to the fender post (1) in a fertilizer groove formed between the fender post (1) and a reserved position of a basement outer wall I (17);
3) after the steel pipe column support system (16) is installed, removing a horizontal inner support I (18) in the deep foundation pit (12), constructing a basement outer wall I (17) on the inner side of the fender post (1), arranging a conversion inclined post system (15) on an inner support column (13) in the deep foundation pit (12), removing a corresponding inner support column section (19) positioned at the bottom of the deep foundation pit (12), constructing a basement floor I (24) between a longitudinal floor slab girder I (20) and a transverse floor slab girder I (21), constructing a floor top post (6) at the position of removing the inner support column section (19), replacing the conversion inclined post system (15), removing the conversion inclined post system (15) and the steel pipe column support system (16), and backfilling a foam concrete I (23) in a fertilizer tank;
4) similarly, a steel pipe upright post supporting system (16) is installed on a floor slab main beam, a floor slab upright post (22) is upwards extended to form a floor slab upright post II (30), a new transverse floor slab main beam II (28) and a new longitudinal floor slab main beam II (29) are constructed on the top of the floor slab upright post II (30), a corresponding horizontal inner support II (25) is removed, a basement outer wall II (27) is constructed on the upper part of the basement outer wall I (17), a conversion inclined post system (15) is arranged on an inner support upright post (13), a corresponding inner support upright post section (26) is removed, a floor slab basement II (32) is constructed between the transverse floor slab main beam II (28) and the longitudinal floor slab main beam II (29), a floor slab top post (6) is arranged at the position where the inner support upright post section (26) is removed, the conversion inclined post system (15) is replaced, the conversion inclined post system (15) and the steel pipe upright post supporting system (16) are removed, backfilling a second foam concrete (31) in the fertilizer groove;
5) and by analogy, the layer is gradually converted from bottom to top until the horizontal internal support (14) of the deep foundation pit fender pile completely completes the conversion construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111176663.5A CN113774925A (en) | 2021-10-09 | 2021-10-09 | Construction method of horizontal internal support conversion structure of deep foundation pit fender post |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111176663.5A CN113774925A (en) | 2021-10-09 | 2021-10-09 | Construction method of horizontal internal support conversion structure of deep foundation pit fender post |
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| CN113774925A true CN113774925A (en) | 2021-12-10 |
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| CN202111176663.5A Withdrawn CN113774925A (en) | 2021-10-09 | 2021-10-09 | Construction method of horizontal internal support conversion structure of deep foundation pit fender post |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482081A (en) * | 2022-01-28 | 2022-05-13 | 中国建筑第八工程局有限公司 | Deep foundation pit fertilizer groove backfilling system |
-
2021
- 2021-10-09 CN CN202111176663.5A patent/CN113774925A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482081A (en) * | 2022-01-28 | 2022-05-13 | 中国建筑第八工程局有限公司 | Deep foundation pit fertilizer groove backfilling system |
| CN114482081B (en) * | 2022-01-28 | 2024-01-23 | 中国建筑第八工程局有限公司 | Deep foundation pit fertilizer groove backfill system |
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Application publication date: 20211210 |
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