CN205046549U - Prefabricated diaphragm wall unit and underground continuous wall - Google Patents
Prefabricated diaphragm wall unit and underground continuous wall Download PDFInfo
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- CN205046549U CN205046549U CN201520596015.9U CN201520596015U CN205046549U CN 205046549 U CN205046549 U CN 205046549U CN 201520596015 U CN201520596015 U CN 201520596015U CN 205046549 U CN205046549 U CN 205046549U
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- diaphragm wall
- joint
- prefabricated diaphragm
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- wall unit
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Abstract
The utility model relates to an underground structure construction field specifically is a prefabricated diaphragm wall unit, including prefabrication diaphragm wall unit body, the both ends of prefabricated diaphragm wall unit body are equipped with joint, this internal reinforcing bar that is equipped with outstanding in the joint surface of prefabricated diaphragm wall unit, the front surface each side of prefabricated diaphragm wall unit body is equipped with a L shape steel sheet, the upper end of L shape steel sheet and lower extreme respectively with the upper end and the lower extreme parallel and level that prefabricate diaphragm wall unit body. The utility model also provides an underground continuous wall is formed by connecting through joint and L shape steel sheet at least two foretell prefabricated diaphragm wall units. Compared with the prior art, the utility model discloses prefabricated diaphragm wall unit and underground continuous wall's beneficial effect does: the rigidity is high, the prevention of seepage performance is strong, during the supporting member of upper portion when being supporting construction, basement outer wall or reverse construction simultaneously to underground continuous wall, can guarantee the foundation ditch engineering and strut the effect, rationally disperse wall body shear force bang path and effectively prevent the groundwater infiltration.
Description
Technical field
The utility model relates to Underground Construction field, specifically a kind of prefabricated diaphragm wall unit and diaphragm wall.
Background technology
Along with the quickening gradually of track traffic and Process of Urbanization Construction paces, the infrastructures such as city underground, high ferro, underground station and square, underground get more and more, and diaphragm wall have also been obtained development and application widely as space enclosing structure in base pit engineering Bracing Process.The diaphragm wall that current pattern foundation pit supporting structure adopts generally adopts lays reinforcing cage and cast-in-situ concrete in the groove section of having constructed in advance, take certain measure (cross preparation joint, I-shaped preparation joint or the groove formed by locking notch pipe) to form rigidity or flexible joint at continuous wall connector place, at joint arranged outside water-stop curtain, to reach the diaphragm wall of section construction space enclosing structure prevention groundwater seepage and outside Water And Earth Pressures as a whole.But, when groundwater pressure and working load larger be difficult to the intensity and the barrier performance that ensure diaphragm wall and joint, on the one hand, Cast-in-situs type diaphragm wall is difficult to stop concrete in casting process to stream and the lower groundwater seepage of higher extraneous Water And Earth Pressures effect, even if adopt the joint treating apparatus such as such as locking notch pipe, but be only extend to stream path, under higher Water And Earth Pressures effect, joint is still permeable; On the other hand, when diaphragm wall is as the supporting member built, existing joint rigidity is not enough, such as adopt cross steel plate as rigid joint component, be easy to cause the cross steel plate longitudinally arranged along diaphragm wall unstable on one side under extraneous Water And Earth Pressures and live load effect, even sex change destroys.To sum up, there is the shortcoming that joint rigidity is low, barrier performance is poor in existing diaphragm wall, during top supporting member when especially doing supporting and protection structure, outer wall of basement or reverse construction for diaphragm wall is double, cannot ensure that base pit engineering supporting effect, rationally dispersion body of wall Shear transfer path and effect stop groundwater seepage.
Utility model content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provides a kind of technical scheme of prefabricated diaphragm wall unit, can ensure rigidity and the barrier performance at underground continuous wall connector place.
Technical problem to be solved in the utility model realizes by the following technical solutions: a kind of prefabricated diaphragm wall unit, comprise prefabricated diaphragm wall cell body, the two ends of described prefabricated diaphragm wall cell body are provided with joint, are provided with the reinforcing bar protruding from joint surface in prefabricated diaphragm wall cell body; The front surface of described prefabricated diaphragm wall cell body is each side provided with a L shape steel plate, and the top and bottom of described L shape steel plate are concordant with the top and bottom of prefabricated diaphragm wall cell body respectively.
The technical solution of the utility model also has: described joint is stepped, and described joint is centrosymmetric layout centered by the cross-section center of prefabricated diaphragm wall cell body.
The technical solution of the utility model also has: described reinforcing bar is horizontal and vertical equidistant layout along the surface of joint, and longitudinally the spacing of adjacent reinforcing bar is 500mm ~ 800mm, and laterally the spacing of adjacent reinforcing bar is 100mm ~ 150mm.
The technical solution of the utility model also has: the surface of described joint is roughened surface.
The technical solution of the utility model also has: described reinforcing bar is HRB400 indented bars, and the length that one end of reinforcing bar protrudes from joint surface is 100mm ~ 150mm.
The technical solution of the utility model also has: the thickness of described prefabricated diaphragm wall cell body is 800mm ~ 1200mm.
The technical solution of the utility model also has: one end of described L shape steel plate embeds prefabricated diaphragm wall cell body, and insert depth is 150mm ~ 200mm.
The utility model additionally provides a kind of diaphragm wall, be formed by connecting by joint and L shape steel plate by least two above-mentioned prefabricated diaphragm wall unit, be provided with joint cast-in-situ concrete between adjacent joint, described joint cast-in-situ concrete and joint and reinforcing bar are built and are integrated; Adjacent L shape steel plate is welded to connect by junction steel plate, described junction steel plate respectively with adjacent two L shape steel plate full welds, the top and bottom of junction steel plate are concordant with the top and bottom of L shape steel plate respectively.
The technical solution of the utility model also has: the rear side of adjacent joint is provided with water-stop curtain.
The construction method of above-mentioned diaphragm wall, comprises the following steps:
A, excavate the first groove segment, first prefabricated diaphragm wall unit is transferred in the first groove segment;
B, excavate the second groove segment, second prefabricated diaphragm wall unit is transferred in the second groove segment, concreting between the joint and the joint of second prefabricated diaphragm wall unit of first prefabricated diaphragm wall unit;
C, repetition step a and b are until diaphragm wall reaches design length;
D, excavation pit, the silt of cleaning L shape surface of steel plate, adopts junction steel plate to be connected with the L shape steel plate full weld of contiguous prefabricated diaphragm wall unit respectively, makes the top and bottom of junction steel plate concordant with the top and bottom of L shape steel plate respectively.
Relative to prior art, the beneficial effect of the utility model prefabricated diaphragm wall unit and diaphragm wall is: (1) due to prefabricated diaphragm wall unit be tie up muscle, formwork in the factory, build, maintenance makes, therefore its quality is better than cast in situs, ensure that workmanship, and, owing to being in factory's centralized production, the dispersion avoiding the resource such as material, electric power uses, and waste reduces, with low cost, also reduce the impact of cast in situs construction on surrounding environment, shorten construction period; (2) reinforcing bar of joint and roughened surface extend concrete and stream path, effectively can extend in permeable object and ooze the time, improve the barrier performance of joint, adjacent L shape steel plate is connected by junction steel plate full weld, further increases the barrier performance of joint; (3) reinforcing bar of joint and adjacent L shape steel plate are connected by junction steel plate full weld, enhance the rigidity of joint, make joint have stronger load propagation function, not only ensure that between diaphragm wall width section rationally excessively, also reach the code requirement of splice mechanical property.
Accompanying drawing explanation
Fig. 1 is the structural representation of prefabricated diaphragm wall unit.
Fig. 2 is the top view of prefabricated diaphragm wall unit.
Fig. 3 is the structural representation of diaphragm wall
Fig. 4 is the A direction view along Fig. 3.
In figure: 1, prefabricated diaphragm wall cell body, 2, joint, 3, reinforcing bar, 4, L shape steel plate, 5, joint cast-in-situ concrete, 6, junction steel plate, 7, water-stop curtain.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, with reference to the accompanying drawings the utility model detailed description of the invention is described further below.
As shown in Figure 1 and Figure 2, a kind of prefabricated diaphragm wall unit, comprise prefabricated diaphragm wall cell body 1, the thickness of described prefabricated diaphragm wall cell body 1 is 800mm ~ 1200mm, the two ends of prefabricated diaphragm wall cell body 1 are provided with stair-stepping joint 2, described joint 2 is centrosymmetric layout centered by the cross-section center of prefabricated diaphragm wall cell body 1, and the surface of joint 2 is roughened surface; The reinforcing bar 3 protruding from joint 2 surface is provided with in prefabricated diaphragm wall cell body 1, described reinforcing bar 3 is HRB400 indented bars, the length that one end of reinforcing bar 3 protrudes from joint 2 surface is 100mm ~ 150mm, reinforcing bar 3 is horizontal and vertical equidistant layout along the surface of joint 2, longitudinally the spacing of adjacent reinforcing bar 3 is 500mm ~ 800mm, and laterally the spacing of adjacent reinforcing bar 3 is 100mm ~ 150mm; The front surface of described prefabricated diaphragm wall cell body 1 is each side provided with a L shape steel plate 4, one end of described L shape steel plate 4 embeds prefabricated diaphragm wall cell body 1, insert depth is that the top and bottom of 150mm ~ 200mm, L shape steel plate 4 are concordant with the top and bottom of prefabricated diaphragm wall cell body 1 respectively.
As shown in Figure 3, Figure 4, the utility model additionally provides a kind of diaphragm wall, be formed by connecting by joint 2 and L shape steel plate 4 by least two above-mentioned prefabricated diaphragm wall unit, be provided with joint cast-in-situ concrete 5 between adjacent joint 2, described joint cast-in-situ concrete 5 is built with joint 2 and reinforcing bar 3 and is integrated; Adjacent L shape steel plate 4 is welded to connect by junction steel plate 6, described junction steel plate 6 respectively with adjacent two L shape steel plate 4 full welds, the top and bottom of junction steel plate 6 are concordant with the top and bottom of L shape steel plate 4 respectively; The rear side of adjacent joint 2 junction is provided with water-stop curtain 7.
The construction method of above-mentioned diaphragm wall, comprises the following steps:
A, excavate the first groove segment, first prefabricated diaphragm wall unit is transferred in the first groove segment;
B, excavate the second groove segment, second prefabricated diaphragm wall unit is transferred in the second groove segment, concreting between the joint 2 and the joint 2 of second prefabricated diaphragm wall unit of first prefabricated diaphragm wall unit;
C, repetition step a and b are until diaphragm wall reaches design length;
D, excavation pit, the silt on cleaning L shape steel plate 4 surface, adopts junction steel plate 6 to be connected with L shape steel plate 4 full weld of contiguous prefabricated diaphragm wall unit respectively, makes the top and bottom of junction steel plate 6 concordant with the top and bottom of L shape steel plate 4 respectively.
By reference to the accompanying drawings embodiment of the present utility model is elaborated above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (9)
1. a prefabricated diaphragm wall unit, it is characterized in that: comprise prefabricated diaphragm wall cell body (1), the two ends of described prefabricated diaphragm wall cell body (1) are provided with joint (2), are provided with the reinforcing bar (3) protruding from joint surface in prefabricated diaphragm wall cell body (1); The front surface of described prefabricated diaphragm wall cell body (1) is each side provided with a L shape steel plate (4), and the top and bottom of described L shape steel plate (4) are concordant with the top and bottom of prefabricated diaphragm wall cell body (1) respectively.
2. prefabricated diaphragm wall unit according to claim 1, is characterized in that: described joint (2) is for stepped, and joint (2) is centrosymmetric layout centered by the cross-section center of prefabricated diaphragm wall cell body (1).
3. prefabricated diaphragm wall unit according to claim 2, it is characterized in that: described reinforcing bar (3) is horizontal and vertical equidistant layout along the surface of joint (2), longitudinally the spacing of adjacent reinforcing bar (3) is 500mm ~ 800mm, and laterally the spacing of adjacent reinforcing bar (3) is 100mm ~ 150mm.
4. prefabricated diaphragm wall unit according to claim 1, is characterized in that: the surface of described joint (2) is roughened surface.
5. according to the arbitrary described prefabricated diaphragm wall unit of claim 1 ~ 4, it is characterized in that: described reinforcing bar (3) is HRB400 indented bars, the length that one end of reinforcing bar (3) protrudes from joint surface is 100mm ~ 150mm.
6., according to the arbitrary described prefabricated diaphragm wall unit of claim 1 ~ 4, it is characterized in that: the thickness of described prefabricated diaphragm wall cell body (1) is 800mm ~ 1200mm.
7., according to the arbitrary described prefabricated diaphragm wall unit of claim 1 ~ 4, it is characterized in that: one end of described L shape steel plate (4) embeds prefabricated diaphragm wall cell body (1), and insert depth is 150mm ~ 200mm.
8. a diaphragm wall, be formed by connecting by joint (2) and L shape steel plate (4) by described prefabricated diaphragm wall unit arbitrary at least two claims 1 ~ 7, it is characterized in that: be provided with joint cast-in-situ concrete (5) between adjacent joint (2), described joint cast-in-situ concrete (5) is built with joint (2) and reinforcing bar (3) and is integrated; Adjacent L shape steel plate (4) is welded to connect by junction steel plate (6), described junction steel plate (6) respectively with adjacent two L shape steel plate (4) full welds, the top and bottom of junction steel plate (6) are concordant with the top and bottom of L shape steel plate (4) respectively.
9. diaphragm wall according to claim 8, is characterized in that: the rear side of adjacent joint (2) junction is provided with water-stop curtain (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596015.9U CN205046549U (en) | 2015-08-10 | 2015-08-10 | Prefabricated diaphragm wall unit and underground continuous wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596015.9U CN205046549U (en) | 2015-08-10 | 2015-08-10 | Prefabricated diaphragm wall unit and underground continuous wall |
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| Publication Number | Publication Date |
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| CN205046549U true CN205046549U (en) | 2016-02-24 |
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| CN201520596015.9U Active CN205046549U (en) | 2015-08-10 | 2015-08-10 | Prefabricated diaphragm wall unit and underground continuous wall |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090825A (en) * | 2017-05-24 | 2017-08-25 | 汤始建华建材（苏州）有限公司 | A kind of dike fender pile |
| CN110258532A (en) * | 2019-06-04 | 2019-09-20 | 广州穗岩土木科技股份有限公司 | One kind can assemble flush type precast hollow diaphram wall and its construction method |
-
2015
- 2015-08-10 CN CN201520596015.9U patent/CN205046549U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090825A (en) * | 2017-05-24 | 2017-08-25 | 汤始建华建材（苏州）有限公司 | A kind of dike fender pile |
| CN110258532A (en) * | 2019-06-04 | 2019-09-20 | 广州穗岩土木科技股份有限公司 | One kind can assemble flush type precast hollow diaphram wall and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200529 Address after: 250101 room 1801, 2 tower, Shun Tai Plaza, 2000 Shun Hua Road, hi tech Zone, Ji'nan, Shandong. Co-patentee after: JINAN RAIL TRANSIT GROUP Co.,Ltd. Patentee after: JINAN SHUNDA RAIL TRANSIT DESIGN Co.,Ltd. Address before: 250103 Shandong city of Ji'nan province high tech Zone Shun Road No. 2000 Shun Tai Plaza No. 2 building 19 layer Patentee before: JINAN RAIL TRANSIT GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 1801, building 2, Shuntai Plaza, 2000 Shunhua Road, high tech Zone, Jinan City, Shandong Province, 250101 Patentee after: Shandong rail transit survey and Design Institute Co.,Ltd. Patentee after: JINAN RAIL TRANSIT GROUP Co.,Ltd. Address before: Room 1801, building 2, Shuntai Plaza, 2000 Shunhua Road, high tech Zone, Jinan City, Shandong Province, 250101 Patentee before: JINAN SHUNDA RAIL TRANSIT DESIGN Co.,Ltd. Patentee before: JINAN RAIL TRANSIT GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |