CN110847154A - Underground continuous wall reinforcement cage anchor bar and setting method - Google Patents
Underground continuous wall reinforcement cage anchor bar and setting method Download PDFInfo
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- CN110847154A CN110847154A CN201911147626.4A CN201911147626A CN110847154A CN 110847154 A CN110847154 A CN 110847154A CN 201911147626 A CN201911147626 A CN 201911147626A CN 110847154 A CN110847154 A CN 110847154A
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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
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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Abstract
The invention relates to an anchor bar of a reinforcement cage of an underground continuous wall and a setting method, wherein the anchor bar of the reinforcement cage comprises an underground continuous wall main bar, an underground continuous wall main bar connected with a U-shaped bar of a hanging point, a straight thread sleeve, a PVC pipe, a first horizontal bar and a U-shaped bar of the hanging point, wherein the underground continuous wall main bar is shortened to the position of the first horizontal bar and is connected with the anchor bar through the embedded straight thread sleeve, the underground continuous wall main bar connected with the U-shaped bar of the hanging point is sleeved with the PVC pipe after being welded with the U-shaped bar of the hanging point, and the anchor bar is separated from concrete through the PVC pipe after the concrete is poured. The construction method is provided by controlling the connection mode of the anchor bars and the main ribs of the diaphragm wall in the diaphragm wall construction process to control the bonding force between the grout returning and the anchor bars during the construction of the top ring beam, so that the chiseling difficulty is higher, and the forming speed of the top ring beam is greatly influenced.
Description
Technical Field
The invention relates to a method for arranging a main ground wall rib of a top ring beam anchored at the upper part of a first horizontal rib of a reinforcement cage in the construction of a ground diaphragm wall.
Background
When the underground continuous wall is constructed and the reinforcement cage is processed and manufactured, the main ground wall reinforcement anchored into the top ring beam at the upper part of the first horizontal reinforcement is usually constructed synchronously with the ground wall and is hoisted into the groove section of the underground continuous wall synchronously with the reinforcement cage of the ground wall, and after concrete pouring is finished, the grout returning of the underground continuous wall is tightly connected with the anchor reinforcement, so that the underground continuous wall has strong binding force. When the top ring beam is excavated in the follow-up construction, anchor bars reserved in the diaphragm wall reinforcement cage need to be chiseled out, at the moment, the diaphragm wall returns thick liquid and tightly wraps the anchor bars, the chiseling difficulty is greatly improved, and the construction speed of the top ring beam is greatly influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing the reinforcement cage anchor bar of the underground diaphragm wall and the setting method thereof, the reinforcement cage anchor bar and the construction method thereof have the advantages of low investment and simple and convenient construction, greatly quicken the speed of chiseling and removing the slurry of the underground diaphragm wall during the subsequent top ring beam construction, and are beneficial to shortening the construction period.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides an underground continuous wall steel reinforcement cage anchor bar, by underground continuous wall owner muscle, with hang point U "type muscle be connected underground even wall owner muscle, straight thread sleeve, PVC pipe, first horizontal muscle and hang point" U "type muscle constitute, underground even wall owner muscle all shorten to first horizontal muscle position to link together with the anchor bar through pre-buried straight thread sleeve, the ground even wall owner muscle that is connected with hang point" U "type muscle is sheathe in the PVC pipe after accomplishing with hang point" U "type muscle welding, after concrete placement, makes anchor bar and concrete separate through the PVC pipe.
Furthermore, the connecting end of the underground connecting wall main rib and the straight thread sleeve is turned with a straight thread; when the top ring beam is constructed, the anchor bars are connected with the main ribs of the diaphragm wall together in a straight thread connection mode to form a whole.
Further, the straight thread sleeves are all primary joints.
Furthermore, the anchor bars are threaded through straight threads at one ends connected with the main ribs of the underground connecting wall through the straight thread sleeves.
Furthermore, the welding length of the underground wall main rib connected with the U-shaped rib of the lifting point and the U-shaped rib of the lifting point is more than 10d, and d is the diameter of the underground wall main rib.
Furthermore, one side of the PVC pipe is cut open, after the PVC pipe is sleeved on the anchor bar, the cut of the PVC pipe and the end head of the PVC pipe are sealed by a waterproof adhesive tape, so that the backflow slurry is prevented from permeating into the PVC pipe.
A method for arranging an anchor bar of a reinforcement cage of an underground continuous wall comprises the following steps:
the first step is as follows: performing straight thread threading on the underground connecting wall main reinforcement without the U-shaped reinforcement connected with the hoisting point, and installing a straight thread sleeve;
the second step is that: welding the underground connecting wall main reinforcement provided with the straight thread sleeve on the underground connecting wall reinforcement cage, wherein the underground connecting wall main reinforcement provided with the straight thread sleeve does not exceed the first horizontal reinforcement;
the third step: sleeving a PVC pipe after welding the main reinforcement of the underground connecting wall which is not subjected to straight thread threading and is connected with the U-shaped reinforcement of the lifting point and the U-shaped reinforcement of the lifting point for a length not less than 10 d;
the fourth step: after the PVC pipe is sleeved on the anchor bar, the cut and the end head of the PVC pipe are sealed by a waterproof adhesive tape, so that the backflow into the PVC pipe is prevented during pouring;
the fifth step: during construction of the top ring beam, after the diaphragm wall is chiseled off and grout is returned, the anchor bars with one ends subjected to straight thread threading are connected with the main ribs of the diaphragm wall together in a straight thread connection mode to form a whole.
The invention has the beneficial effects that:
according to the anchor bar of the reinforcement cage of the underground continuous wall and the setting method, the connection mode of the anchor bar and the main reinforcement of the underground continuous wall and the mode of separating the anchor bar from the slurry return through the PVC pipe during the processing of the reinforcement cage of the underground continuous wall are controlled, so that the construction speed of chiseling the slurry return of the underground wall during the subsequent construction of the top ring beam is greatly improved, the construction speed of the top ring beam is greatly shortened, the construction speed of a foundation pit is greatly increased, and the overall safety and the deformation resistance of the foundation pit are greatly improved.
Drawings
Fig. 1 is a plan view of the reinforcement cage anchor bar for the underground continuous wall and the setting method thereof.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in figure 1, the anchor bar of the reinforcement cage of the underground diaphragm wall comprises a reinforcement cage of the underground diaphragm wall, a straight thread sleeve 1, a first horizontal bar 2, a main reinforcement 3 of the underground diaphragm wall, a main reinforcement 4 of the underground diaphragm wall connected with a U-shaped reinforcement of a hanging point, a PVC pipe 5, a U-shaped reinforcement 6 of the hanging point and an anchor bar 7. The main reinforcement 3 of the diaphragm wall is shortened to the position of a first horizontal reinforcement, is connected with the anchor reinforcement 3 through the embedded straight thread sleeve 1, and the main reinforcement 5 of the diaphragm wall connected with the U-shaped reinforcement of the hoisting point is welded with the U-shaped reinforcement 6 of the hoisting point and then sleeved with the PVC pipe 5, and after the concrete pouring is finished, the anchor reinforcement is separated from the concrete through the PVC pipe 5.
The connecting end of the underground connecting wall main reinforcement 3 and the straight thread sleeve 1 is provided with straight threads; when the top ring beam is constructed, the anchor bars 7 are connected with the underground wall connecting main bars 3 in a straight thread connection mode to form a whole.
The straight thread sleeves 1 are all primary joints. And the anchor bars 7 are threaded through straight threads at one ends connected with the underground wall connecting main bars 3 through the straight thread sleeves 1. The welding length of the underground wall connecting main rib 3 and the U-shaped rib at the hanging point is more than 10d, and d is the diameter of the underground wall connecting main rib. One side of the PVC pipe is cut open, after the PVC pipe is sleeved on the anchor bar, the cut of the PVC pipe and the end head of the PVC pipe are sealed by a waterproof adhesive tape, so that the back slurry is prevented from permeating into the PVC pipe.
A method for arranging an anchor bar of a reinforcement cage of an underground continuous wall comprises the following steps:
the first step is as follows: performing straight thread threading on the main reinforcement 4 of the diaphragm wall connected with the U-shaped reinforcement of the hoisting point, and installing a straight thread sleeve 1;
the second step is that: welding a ground connecting wall main rib 4 connected with a ground connecting wall main rib 3 provided with a straight thread sleeve 1 and a lifting point U-shaped rib 6 on a ground connecting wall reinforcement cage, wherein the ground connecting wall main rib provided with the straight thread sleeve 1 does not exceed a first horizontal rib 2;
the third step: after the main reinforcement 4 of the ground connecting wall which is not threaded by straight threads and the U-shaped reinforcement 6 of the hanging point are welded for a length of not less than 10d, a PVC pipe 5 is sleeved;
the fourth step: after the PVC pipe 5 is sleeved on the anchor bar, a waterproof adhesive tape is needed to seal the cut and the end head of the PVC pipe 5, so that slurry return is prevented from permeating into the PVC pipe 5 during pouring;
the fifth step: during construction of the top ring beam, after the diaphragm wall is chiseled off and grout is returned, the anchor bars 7 with one ends subjected to straight thread threading are connected with the diaphragm wall main bars 3 together in a straight thread connection mode to form a whole.
Claims (7)
1. The utility model provides an underground continuous wall steel reinforcement cage anchor bar comprises underground continuous wall owner muscle, the ground that is connected with hoisting point U "type muscle even wall owner muscle, straight thread sleeve, PVC pipe, a horizontal muscle and hoisting point" U "type muscle, its characterized in that: the underground continuous wall main reinforcement is shortened to a first horizontal reinforcement position and is connected with the anchor reinforcement through a pre-buried straight thread sleeve, the underground continuous wall main reinforcement connected with the U-shaped reinforcement at the lifting point is sleeved with a PVC pipe after being welded with the U-shaped reinforcement at the lifting point, and the anchor reinforcement is separated from concrete through the PVC pipe after the concrete pouring is finished.
2. The underground continuous wall steel reinforcement cage anchor bar of claim 1, wherein: the connecting end of the main reinforcement of the underground connecting wall and the straight thread sleeve is provided with straight threads; when the top ring beam is constructed, the anchor bars are connected with the underground wall main bars in a straight thread connection mode to form a whole.
3. The underground continuous wall steel reinforcement cage anchor bar of claim 2, wherein: the straight thread sleeves are all primary joints.
4. The underground continuous wall steel reinforcement cage anchor bar of claim 2, wherein: and the anchor bars are threaded through straight threads at one ends connected with the main ribs of the underground connecting wall through the straight thread sleeves.
5. The underground continuous wall steel reinforcement cage anchor bar of claim 1, wherein: the welding length of the underground wall connecting main rib connected with the U-shaped rib of the lifting point and the U-shaped rib of the lifting point is more than 10d, and d is the diameter of the underground wall connecting main rib.
6. The underground continuous wall steel reinforcement cage anchor bar of claim 1, wherein: one side of the PVC pipe is cut open, after the PVC pipe is sleeved on the anchor bar, the cut of the PVC pipe and the end head of the PVC pipe are sealed by a waterproof adhesive tape, so that the slurry return is prevented from permeating into the PVC pipe.
7. A method for setting reinforcement bars of reinforcement cages for underground continuous walls according to any one of claims 1 to 6, which comprises the following steps:
the first step is as follows: performing straight thread threading on the underground connecting wall main reinforcement without the U-shaped reinforcement connected with the hoisting point, and installing a straight thread sleeve;
the second step is that: welding the underground connecting wall main reinforcement provided with the straight thread sleeve and connected with the U-shaped reinforcement of the lifting point on an underground connecting wall reinforcement cage, wherein the underground connecting wall main reinforcement provided with the straight thread sleeve does not exceed the first horizontal reinforcement;
the third step: sleeving a PVC pipe after welding the main reinforcement of the underground connecting wall which is not subjected to straight thread threading and is connected with the U-shaped reinforcement of the lifting point and the U-shaped reinforcement of the lifting point for a length not less than 10 d;
the fourth step: after the PVC pipe is sleeved on the anchor bar, the cut and the end head of the PVC pipe are sealed by a waterproof adhesive tape, so that the backflow into the PVC pipe is prevented during pouring;
the fifth step: during construction of the top ring beam, after the underground diaphragm wall is chiseled off and grout is returned, the anchor bars with one ends subjected to straight thread threading are connected with the underground diaphragm wall main bars together in a straight thread connection mode to form a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911147626.4A CN110847154A (en) | 2019-11-21 | 2019-11-21 | Underground continuous wall reinforcement cage anchor bar and setting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911147626.4A CN110847154A (en) | 2019-11-21 | 2019-11-21 | Underground continuous wall reinforcement cage anchor bar and setting method |
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| CN110847154A true CN110847154A (en) | 2020-02-28 |
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| CN201911147626.4A Pending CN110847154A (en) | 2019-11-21 | 2019-11-21 | Underground continuous wall reinforcement cage anchor bar and setting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472763A (en) * | 2022-01-07 | 2022-05-13 | 中铁二十二局集团轨道工程有限公司 | Construction method for connecting main reinforcement straight threaded sleeves of underground continuous wall |
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| DE102005052234A1 (en) * | 2005-11-02 | 2007-05-03 | Meyer, Alfred, Dipl.-Ing. | Flexible ground anchor for producing tight connection anchorage in seabed, has flexible, deformable inner and outer pipes, which are spooled in seabed in different cross sections and are supported in lower area of radial sections |
| CN102677653A (en) * | 2012-06-05 | 2012-09-19 | 中国建筑第八工程局有限公司 | Variable cross section construction method for underground continuous wall |
| CN204551483U (en) * | 2015-02-03 | 2015-08-12 | 中国建筑股份有限公司 | A kind of to be used for " Two walls unite as one " ground-connecting-wall-Vierendeel girder Joint's connection fabrication |
| CN205934908U (en) * | 2016-08-29 | 2017-02-08 | 福建金固建材有限公司 | Concrete precast pile and manger plate fender building structure for soil |
| CN106638618A (en) * | 2016-12-20 | 2017-05-10 | 杭州江润科技有限公司 | Construction method of reinforced concrete support structure of diaphgram wall retaining foundation pit |
| CN107829426A (en) * | 2017-12-13 | 2018-03-23 | 广西大学 | A kind of restructuring bankrupt of diaphram wall, forming method and its top of a wall part |
-
2019
- 2019-11-21 CN CN201911147626.4A patent/CN110847154A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005052234A1 (en) * | 2005-11-02 | 2007-05-03 | Meyer, Alfred, Dipl.-Ing. | Flexible ground anchor for producing tight connection anchorage in seabed, has flexible, deformable inner and outer pipes, which are spooled in seabed in different cross sections and are supported in lower area of radial sections |
| CN102677653A (en) * | 2012-06-05 | 2012-09-19 | 中国建筑第八工程局有限公司 | Variable cross section construction method for underground continuous wall |
| CN204551483U (en) * | 2015-02-03 | 2015-08-12 | 中国建筑股份有限公司 | A kind of to be used for " Two walls unite as one " ground-connecting-wall-Vierendeel girder Joint's connection fabrication |
| CN205934908U (en) * | 2016-08-29 | 2017-02-08 | 福建金固建材有限公司 | Concrete precast pile and manger plate fender building structure for soil |
| CN106638618A (en) * | 2016-12-20 | 2017-05-10 | 杭州江润科技有限公司 | Construction method of reinforced concrete support structure of diaphgram wall retaining foundation pit |
| CN107829426A (en) * | 2017-12-13 | 2018-03-23 | 广西大学 | A kind of restructuring bankrupt of diaphram wall, forming method and its top of a wall part |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472763A (en) * | 2022-01-07 | 2022-05-13 | 中铁二十二局集团轨道工程有限公司 | Construction method for connecting main reinforcement straight threaded sleeves of underground continuous wall |
| CN114472763B (en) * | 2022-01-07 | 2023-09-08 | 中铁二十二局集团轨道工程有限公司 | Construction method for connecting main rib straight thread sleeve of underground diaphragm wall |
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Application publication date: 20200228 |
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