CN115094933A - Concrete anti-streaming reinforcement cage for diaphragm wall joint and construction method - Google Patents
Concrete anti-streaming reinforcement cage for diaphragm wall joint and construction method Download PDFInfo
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- CN115094933A CN115094933A CN202210781343.0A CN202210781343A CN115094933A CN 115094933 A CN115094933 A CN 115094933A CN 202210781343 A CN202210781343 A CN 202210781343A CN 115094933 A CN115094933 A CN 115094933A
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- 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
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention discloses a concrete anti-streaming reinforcement cage for a diaphragm wall joint and a construction method, belonging to the technical field of concrete pouring construction; a concrete anti-streaming reinforcement cage for a ground-to-wall joint and a construction method thereof comprise a reinforcement cage, wherein I-shaped steel joints are arranged at two ends of the reinforcement cage, flange steel plates are fixedly connected to two ends of each I-shaped steel joint, and symmetrical blanking guide pipe holes are formed in the upper surface of the reinforcement cage; according to the invention, by adopting the method that the flange plates are additionally arranged at two sides of the joint end of the ground diaphragm wall reinforcement cage, and the gap between the joint box and the groove wall is sealed to prevent the concrete from flowing around, the concrete flowing around gap can be effectively blocked, and the construction quality of the concrete is ensured.
Description
Technical Field
The invention relates to the technical field of concrete pouring construction, in particular to a concrete anti-streaming reinforcement cage for a diaphragm wall joint and a construction method.
Background
Along with the rapid development of urban construction, the construction of urban subways, stations and tunnel engineering by adopting diaphragm walls is common, and the construction quality of the diaphragm walls directly influences the safety of shallow-buried excavation construction of foundation pits and the safety of engineering main bodies. In view of the importance of diaphragm wall construction, effective means must be adopted to ensure the construction quality of diaphragm construction joints of diaphragm walls, and ensure that concrete pouring is compact and no underwater concrete streaming occurs. At present, the commonly used method for preventing concrete from flowing and blocking at joints by pouring concrete of diaphragm walls mainly adopts methods of matching steel joint boxes with sand bags and the like.
The method for matching the steel joint box with the sand bag comprises the following steps that firstly, construction is complex, joint plugging cannot be guaranteed to be tight, concrete streaming appears more, the concrete is easy to have quality defects such as incompact and honeycomb, detection and processing cost is high, concrete is filled in adjacent underground diaphragm wall groove sections easily, cleaning is troublesome, construction of the next groove section can be influenced, and construction quality of the underground diaphragm wall cannot be guaranteed effectively.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a steel joint box is matched with a sand bag, firstly, the construction is complex, the joint plugging cannot be guaranteed to be tight, the concrete streaming is more in appearance, and the cleaning is troublesome, and provides a concrete streaming-preventing reinforcement cage for a ground wall joint and a construction method.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a ground is wall joint concrete and is prevented around flowing steel reinforcement cage, includes the steel reinforcement cage, the both ends of steel reinforcement cage all are equipped with the I-steel joint, the equal fixedly connected with edge of a wing steel sheet in both ends of I-steel joint, the upper surface of steel reinforcement cage is equipped with the unloading pipe hole of symmetry.
Further, the thickness of the I-shaped steel joint is 1 cm.
Furthermore, the flange steel plate and the steel reinforcement cage form a splayed shape with an included angle of 15 degrees, and the flange steel plate is 60cm wide and 2mm thick.
Furthermore, the diameter of the blanking guide pipe hole is 30cm, and the blanking guide pipe hole is located at the position 50cm away from one end of the reinforcement cage.
A construction method of a concrete anti-streaming reinforcement cage of a ground-to-wall joint comprises the following steps:
the method comprises the following steps: constructing a diaphragm wall guide wall, constructing the diaphragm wall guide wall according to design requirements, and performing diaphragm wall grooving construction;
step two: and (4) processing the reinforcement cage, manufacturing and processing the reinforcement cage according to the width of the on-site diaphragm wall, and welding the I-shaped steel joint, the flange steel plate and the reinforcement cage.
Step three: the processed steel reinforcement cage is installed, pouring is conducted from the blanking guide pipe hole to the interior of the steel reinforcement cage through the blanking pipe, and then it is required to be ensured that gaps between the joint box and the groove walls are sealed more effectively under the action of extrusion force of concrete by the two side flange plates, so that concrete streaming is effectively prevented, and concrete construction quality is guaranteed.
Furthermore, when the reinforcement cage is installed, a joint box is installed through an I-steel joint, the joint box is made of 10mm thick I-steel, and the joint box is whipped to be 10-30 cm in the tank bottom soil layer.
Compared with the prior art, the invention provides the concrete anti-streaming reinforcement cage for the diaphragm wall joint and the construction method, and has the following beneficial effects.
The invention adopts the method that the flange plates are additionally arranged at the two sides of the joint end of the ground wall reinforcement cage and the gap between the joint box and the groove wall is sealed to prevent the concrete from flowing around, thereby effectively blocking the concrete flowing around gap and ensuring the construction quality of the concrete. The invention also has other advantages: (1) the structure is simple, only the flange steel plates are added on two sides of two ends of the underground diaphragm wall reinforcement cage, and the flange steel plates and the connector I-shaped steel are welded together in the process of manufacturing and processing the reinforcement cage, so that the flange steel plates and the connector I-shaped steel can be operated by common welders; (2) the flange steel plate is economical and practical, and is a common engineering material, convenient to purchase, economical and practical; (3) the effect of preventing the streaming is obvious, the flange steel plate can be in close contact with the groove wall by utilizing the splayed structure in the process of the lower steel reinforcement cage, and meanwhile, the gap between the flange steel plate and the groove wall is completely sealed by utilizing the concrete extrusion force in the pouring process, so that the path of the concrete streaming is blocked, and the construction quality of underwater concrete is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows; and will be apparent to those skilled in the art, to a certain extent, upon a study of the following; or may be learned by the practice of the invention.
Drawings
Fig. 1 is a schematic structural view of the reinforcement cage of the present invention.
Fig. 2 is a schematic structural view of the diaphragm wall of the present invention.
1. A reinforcement cage; 2. i-steel joints; 3. a flange steel plate; 4. and (5) blanking guide pipe holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, the concrete anti-bypass reinforcement cage with the ground-to-wall joints comprises a reinforcement cage 1, wherein I-shaped steel joints 2 are arranged at two ends of the reinforcement cage 1, flange steel plates 3 are fixedly connected to two ends of each I-shaped steel joint 2, and symmetrical blanking guide pipe holes 4 are formed in the upper surface of the reinforcement cage 1. The reinforcement cage 1 needs to be welded on site, and a proper reinforcement cage is welded according to the size of construction drawings and the on-site condition. As shown in fig. 1, the i-steel joints 2 are welded at two ends of the reinforcement cage 1, the flange steel plates 3 are welded on the i-steel joints 2, and the flange steel plates 3 at two ends of the reinforcement cage 1 are opposite to each other in direction.
The thickness of the I-shaped steel joint 2 is 1 cm. The flange steel plate 3 and the steel reinforcement cage 1 form a splayed shape with an included angle of 15 degrees, and the flange steel plate 3 is 60cm wide and 2mm thick. The diameter of the blanking guide pipe hole 4 is 30cm, and the blanking guide pipe hole 4 is located at 50cm of one end of the reinforcement cage 1. The blanking guide pipe hole 4 is 50cm away from the nearest end of the reinforcement cage 1, and the reserved blanking guide pipe hole 4 facilitates the use of a blanking pipe for pouring concrete into the reinforcement cage 1.
A construction method of a concrete anti-streaming reinforcement cage of a diaphragm wall joint comprises the following steps:
the method comprises the following steps: constructing a diaphragm wall guide wall, constructing the diaphragm wall guide wall according to design requirements, and performing diaphragm wall grooving construction;
step two: and (4) processing the reinforcement cage, manufacturing and processing the reinforcement cage according to the width of the on-site diaphragm wall, and welding the I-shaped steel joint, the flange steel plate and the reinforcement cage.
Step three: the processed steel reinforcement cage is installed, pouring is conducted from the blanking guide pipe hole to the interior of the steel reinforcement cage through the blanking pipe, and then it is required to be ensured that gaps between the joint box and the groove walls are sealed more effectively under the action of extrusion force of concrete by the two side flange plates, so that concrete streaming is effectively prevented, and concrete construction quality is guaranteed.
When the reinforcement cage is installed, a joint box is installed through an I-steel joint, the joint box is made of 10mm thick I-steel, and the whipped joint box is 10 cm-30 cm into a tank bottom soil layer.
After the underground diaphragm wall guide wall and the guide groove are constructed, a reinforcement cage is welded and modified according to the size and the actual condition, then the reinforcement cage is hung, installed and provided with a connector box which is 10 cm-30 cm into a groove bottom soil layer, and a phi 30cm concrete guide pipe is placed close to two ends of the reinforcement cage; when concrete is poured at two ends of the reinforcement cage, the flange steel plates are completely in close contact with the wall of the groove under the action of concrete extrusion force, gaps are sealed, and a concrete streaming path is blocked; and the concrete streaming path of the same height surface is completely and effectively sealed by the flange steel plate in the concrete sequential pouring process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. The utility model provides a ground is wall joint concrete and is prevented around flowing steel reinforcement cage, includes steel reinforcement cage (1), its characterized in that, the both ends of steel reinforcement cage (1) all are equipped with I-steel joint (2), the equal fixedly connected with edge of a wing steel sheet (3) in both ends of I-steel joint (2), the upper surface of steel reinforcement cage (1) is equipped with unloading pipe hole (4) of symmetry.
2. The concrete anti-streaming reinforcement cage of the ground connection wall joint as claimed in claim 1, wherein the thickness of the I-steel joint (2) is 1 cm.
3. The concrete anti-bypass reinforcement cage of the ground-wall joint according to claim 1, wherein the flange steel plates (3) and the reinforcement cage (1) form a splay shape with an included angle of 15 degrees, and the flange steel plates (3) are 60cm wide and 2mm thick.
4. The reinforcement cage for preventing concrete from flowing around of the ground-connecting wall joint as claimed in claim 1, wherein the diameter of the blanking conduit hole (4) is 30cm, and the blanking conduit hole (4) is located 50cm from one end of the reinforcement cage (1).
5. The construction method of the ground connection wall joint concrete anti-bypass reinforcement cage according to any one of claims 1 to 4, characterized by comprising the following steps:
the method comprises the following steps: constructing a diaphragm wall guide wall, constructing the diaphragm wall guide wall according to design requirements, and performing diaphragm wall grooving construction;
step two: processing a reinforcement cage, manufacturing and processing the reinforcement cage according to the width of the ground connection wall on site, and welding the I-shaped steel joint, the flange steel plate and the reinforcement cage;
step three: the steel reinforcement cage after installation processing to pour from unloading pipe hole to steel reinforcement cage inside through the unloading pipe, need ensure when pouring that both sides flange board is in the extrusion force effect of concrete under the clearance between joint case and the cell wall more effectively sealed, effectively prevent the concrete and flow around, guarantee concrete construction quality.
6. The construction method of the floor connecting wall joint concrete anti-bypass reinforcement cage according to claim 5, characterized in that a joint box is installed through an I-steel joint when the reinforcement cage is installed, the joint box is made of I-steel with the thickness of 10mm, and the joint box is whipped into a groove bottom soil layer by 10 cm-30 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210781343.0A CN115094933A (en) | 2022-07-05 | 2022-07-05 | Concrete anti-streaming reinforcement cage for diaphragm wall joint and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210781343.0A CN115094933A (en) | 2022-07-05 | 2022-07-05 | Concrete anti-streaming reinforcement cage for diaphragm wall joint and construction method |
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| CN115094933A true CN115094933A (en) | 2022-09-23 |
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| CN202210781343.0A Pending CN115094933A (en) | 2022-07-05 | 2022-07-05 | Concrete anti-streaming reinforcement cage for diaphragm wall joint and construction method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017214798A (en) * | 2016-06-02 | 2017-12-07 | 鹿島建設株式会社 | Construction method of underground continuous wall and underground continuous wall |
| CN109056701A (en) * | 2018-09-05 | 2018-12-21 | 广东省源天工程有限公司 | Diaphram wall seam is anti-to stream construction method |
| CN209162798U (en) * | 2018-09-05 | 2019-07-26 | 广东省源天工程有限公司 | The anti-by-pass means of underground continuous wall connector |
| CN110700237A (en) * | 2019-09-30 | 2020-01-17 | 中铁隧道集团二处有限公司 | Construction method of diaphragm wall for preventing concrete from flowing around |
| CN212153472U (en) * | 2020-03-23 | 2020-12-15 | 中交四公局第三工程有限公司 | Underground continuous wall water stop structure |
-
2022
- 2022-07-05 CN CN202210781343.0A patent/CN115094933A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017214798A (en) * | 2016-06-02 | 2017-12-07 | 鹿島建設株式会社 | Construction method of underground continuous wall and underground continuous wall |
| CN109056701A (en) * | 2018-09-05 | 2018-12-21 | 广东省源天工程有限公司 | Diaphram wall seam is anti-to stream construction method |
| CN209162798U (en) * | 2018-09-05 | 2019-07-26 | 广东省源天工程有限公司 | The anti-by-pass means of underground continuous wall connector |
| CN110700237A (en) * | 2019-09-30 | 2020-01-17 | 中铁隧道集团二处有限公司 | Construction method of diaphragm wall for preventing concrete from flowing around |
| CN212153472U (en) * | 2020-03-23 | 2020-12-15 | 中交四公局第三工程有限公司 | Underground continuous wall water stop structure |
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