CN212153472U - Underground continuous wall water stop structure - Google Patents
Underground continuous wall water stop structure Download PDFInfo
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- CN212153472U CN212153472U CN202020375778.1U CN202020375778U CN212153472U CN 212153472 U CN212153472 U CN 212153472U CN 202020375778 U CN202020375778 U CN 202020375778U CN 212153472 U CN212153472 U CN 212153472U
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Abstract
The utility model discloses a water stop structure of an underground diaphragm wall, which comprises an I-shaped steel main body and a reinforcement cage structure assembled in the I-shaped steel main body; the circumferential direction of the I-shaped steel main body is fixedly connected with an anti-streaming iron skin layer; the anti-bypass iron sheet layer extends towards the inner side of the I-shaped steel main body along the edge of the I-shaped steel main body; a mounting assembly is arranged at the joint of the reinforcement cage structure and the I-shaped steel main body; concrete is poured around the I-shaped steel main body and the reinforcement cage structure. The utility model discloses an underground continuous wall stagnant water structure is through linking firmly on the flange board of I-steel and preventing the streaming iron cortex to the galvanized iron sheet that the slope extends and the level extends has avoided underground continuous wall seam crossing serious and waterproof poor problem of infiltration. In addition, the angle steel is arranged at the joint of the steel reinforcement cage structure and the I-shaped steel main body, so that not only is the structural stability of the steel reinforcement cage structure improved, but also the construction and installation of the steel reinforcement cage structure and the I-shaped steel main body are facilitated, and the butt joint is convenient.
Description
Technical Field
The utility model relates to a construction technical field especially relates to an underground continuous wall stagnant water structure.
Background
In recent years, the number of underground projects is increased in a blowout manner, people pay more and more attention to the effective utilization rate of underground spaces, a series of projects such as underground shopping malls, underground passages, underground roads and the like are built in cities, and the depth of a built foundation pit is gradually increased along with the increasing progress of the construction technology. As most of projects are constructed in the range of urban areas, buildings and structures on the periphery of the boundary of a construction area are dense, and the excavation and supporting conditions of a deep foundation pit and the damage conditions to the peripheral soil body become important factors of the safety of the foundation pit and the safety of the peripheral buildings.
The underground continuous wall enclosure structure well solves the problems, has small influence on peripheral soil and environment, has large rigidity and meets the requirement of deep foundation pit support. The underground continuous wall is composed of groove sections, and the joint of the underground continuous wall is a water seepage frequent region of the whole underground continuous wall enclosure structure project due to the process of the sectional construction of the underground continuous wall. At present, most of underground engineering excavation depths are below a groundwater level line, if a water seepage phenomenon occurs to a building enclosure in the excavation process, the safety of a foundation pit is threatened, a great deal of inconvenience is brought to construction in the foundation pit, the effect is reduced, the plugging cost is additionally increased, and sand gushing driven by water seepage can cause local roads and building collapse of adjacent sections in serious cases, so that major safety accidents are caused.
Based on the technical problem, a need exists in the art for developing a water stop structure for an underground diaphragm wall, which can effectively solve the above technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a construction is convenient, improve the construction and become wall quality, practice thrift the operating expenses's secret diaphragm wall stagnant water structure.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses an underground continuous wall stagnant water structure, this stagnant water structure includes:
an I-steel body;
a reinforcement cage structure assembled in the I-steel body;
the circumferential direction of the I-shaped steel main body is fixedly connected with an anti-streaming iron skin layer;
the anti-bypass iron sheet layer extends towards the inner side of the I-shaped steel main body along the edge of the I-shaped steel main body;
a mounting assembly is arranged at the joint of the reinforcement cage structure and the I-shaped steel main body;
concrete is poured around the I-shaped steel main body and the reinforcement cage structure.
Further, the I-steel main body comprises two I-steels which are separately arranged;
the thickness of the steel plate of the I-shaped steel is 1cm, the length of the web plate is 66cm, and the length of the flange plate is 42.5 cm;
and the anti-streaming iron skin layer is welded and fixed on the flange plate of the I-shaped steel.
Further, the anti-bypass iron sheet layer is galvanized iron sheet;
the anti-streaming iron sheet layer comprises two parts, namely a first body welded and fixed with the flange plate of the I-shaped steel and a second body integrally formed at the end part of one end, far away from the flange plate, of the first body;
one end of the first body is fixedly welded with the flange plate, and the other end of the first body extends towards the space between the two I-shaped steels in an inclined mode;
the second body extends horizontally towards the space between the two I-beams;
the width of the second body is not less than 50 cm.
Furthermore, the reinforcement cage structure comprises a reinforcement cage formed by fixing reinforcement bars in a staggered manner; and
the angle steels are fixed at four corners of the reinforcement cage;
the angle steel wraps the corner of the steel reinforcement cage and is provided with anchor bolt holes at intervals along the length direction;
the connecting position of the flange plate and the web plate of the I-shaped steel is the mounting position of the angle steel;
when the whole embedding of steel reinforcement cage structure is two space between the I-steel, the angle steel pastes and attaches in the junction of flange board and web, and with the flange board and the web of I-steel link firmly respectively.
Furthermore, the angle steel and the flange plate and the web plate of the I-shaped steel are fixed through welding or anchor bolts.
Furthermore, the reinforcing steel bar of the reinforcing steel bar cage close to the I-shaped steel is fixed with the I-shaped steel through a U-shaped bolt.
Further, a space between the two I-shaped steels is a first pouring space, and after the reinforcement cage structure and the I-shaped steel main body are assembled, concrete is poured in the first pouring space;
the I-steel outer space is a secondary pouring space, and after concrete is poured in the primary pouring space, the concrete is poured in the secondary pouring space.
In the technical scheme, the utility model provides a pair of underground continuous wall stagnant water structure has following beneficial effect:
the utility model discloses an underground continuous wall stagnant water structure is through linking firmly on the flange board of I-steel and preventing the streaming iron cortex to the galvanized iron sheet that the slope extends and the level extends has avoided underground continuous wall seam crossing serious and waterproof poor problem of infiltration. In addition, the angle steel is arranged at the joint of the steel reinforcement cage structure and the I-shaped steel main body, so that not only is the structural stability of the steel reinforcement cage structure improved, but also the construction and installation of the steel reinforcement cage structure and the I-shaped steel main body are facilitated, and the butt joint is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a flow chart of a construction process of a water stop structure of an underground diaphragm wall provided by an embodiment of the utility model;
fig. 2 is a schematic structural diagram of the underground diaphragm wall water stop structure provided by the embodiment of the present invention after pouring;
fig. 3 is a schematic structural diagram of a water stop structure of an underground diaphragm wall provided by an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure of an i-steel main body and a diversion-proof iron sheet layer of the underground diaphragm wall water stop structure provided by the embodiment of the present invention;
fig. 5 is a schematic structural view of a reinforcement cage structure of the underground diaphragm wall water stop structure provided by the embodiment of the present invention;
fig. 6 is the utility model provides an underground continuous wall stagnant water structure's reinforcing bar passes through the structural schematic that U type bolt and I-steel main part's web is connected.
Description of reference numerals:
101. a first casting space; 102. a second casting space;
2. an I-steel body; 3. a bypass flow prevention iron skin layer; 4. a reinforcement cage structure;
201. a web; 202. a flange plate;
301. a first body; 302. a second body;
401. a reinforcement cage; 402. angle steel; 403. reinforcing steel bars; 404. u-shaped bolt.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
See fig. 1-6;
the utility model discloses an underground continuous wall stagnant water structure, this stagnant water structure includes:
an I-steel body 2;
a reinforcement cage structure 4 assembled in the I-steel main body 2;
the circumferential direction of the I-shaped steel main body 2 is fixedly connected with an anti-streaming iron sheet layer 3;
the anti-bypass iron sheath layer 3 extends towards the inner side of the I-steel main body 2 along the edge of the I-steel main body 2;
a mounting assembly is arranged at the joint of the steel reinforcement cage structure 4 and the I-shaped steel main body 2;
concrete is poured around the I-shaped steel main body 2 and the reinforcement cage structure 4.
Specifically, the embodiment discloses a water stop structure for underground continuous wall construction, and the mechanism for forming the weak position at the joint of the underground continuous wall is mainly that when the former underground continuous wall is poured, concrete bypasses an I-shaped steel and enters the joint of the next underground continuous wall, so that the joint of the underground continuous wall is a concrete slurry mixture, and a water seepage channel is easily formed to cause water seepage of the underground continuous wall. The I-steel main body 2 of this embodiment combines self geological conditions and construction process restriction, adopts the iron sheet as an effectual underground continuous wall anti-streaming instrument, fixes it in underground continuous wall I-steel department through simple and easy connection form.
1. The use of the anti-bypass iron sheet layer 3 prevents the water seepage problem of the underground diaphragm wall, reduces the water damage diseases of the foundation pit, and ensures the operation safety of the foundation pit.
2. The construction method overcomes the problems of water seepage and the like at the joint of the underground continuous wall, and particularly shows the superiority when the construction method is adopted for construction in the environment with poor soil quality.
3. The construction method optimizes the design of the underground continuous wall, so that the integral connectivity of the underground continuous wall can be ensured even if the underground continuous wall is constructed in the groove sections.
4. The adaptability is strong: underground continuous wall structure capable of adapting to various plane polygons
5. The construction method improves the quality of the constructed wall, is easy to control the construction and saves the construction cost.
The structure of the embodiment has the characteristics of simple and convenient construction process, high construction efficiency, good construction quality, strong water damage prevention effect and the like, can be widely applied to construction of various underground continuous walls, and has the advantages under the following conditions;
the underground continuous wall is a construction wall below the underground water level.
The soil layers of the construction area are the conditions of first-class soil and second-class soil.
The wall is suitable for various underground continuous walls constructed in different groove sections.
And the adjacent construction and structures are multiple, and the safety coefficient of the foundation pit requires a higher area.
The function principle of the anti-bypass iron sheet layer of the embodiment is as follows: underground continuous wall framing construction technology and kneck stagnant water structure determine that the concrete that previous width of cloth was pour can be followed I-steel department and is flowed to next width of cloth underground continuous wall when the construction of underground continuous wall, can make the combination thing of concrete and mud pile up at the kneck of next width of cloth underground continuous wall like this to lead to later stage foundation ditch excavation often, outside groundwater easily from the weak department infiltration of underground continuous wall seam, cause seam crossing stagnant water quality relatively poor. In order to prevent the concrete from flowing around to the joint of the next underground continuous wall, 50cm anti-flowing iron sheets are additionally arranged on flange plates on two sides of the I-shaped steel respectively to prevent the concrete from flowing around.
The water stopping quality is improved by improving the water stopping structure at the joint of the underground continuous wall. When the underground continuous wall is used for pouring concrete, when the concrete is poured to the anti-streaming iron sheet position, the concrete extrudes the anti-streaming iron sheet to the underground continuous wall, so that the concrete can not enter the joint of the next underground continuous wall through the anti-streaming iron sheet, the cleanness of the concrete at the joint of the I-shaped steel is ensured when the next concrete is poured, and the formation of a water seepage channel is avoided. The concrete can be in good contact with the I-shaped wall when the next underground continuous wall is constructed, and therefore water seepage at the joint is avoided.
Preferably, the i-steel body 2 comprises two i-steels which are separately arranged;
the thickness of the steel plate of the I-shaped steel is 1cm, the length of the web plate 201 is 66cm, and the length of the flange plate 202 is 42.5 cm;
the anti-bypass iron sheath 3 is welded and fixed on the flange plate 202 of the I-shaped steel.
Wherein, the anti-bypass iron sheet layer 3 is galvanized iron sheet;
the anti-bypass iron sheet layer 3 comprises two parts, namely a first body 301 welded and fixed with the flange plate 202 of the I-shaped steel and a second body 302 integrally formed at the end part of one end of the first body 301 far away from the flange plate 202;
one end of the first body 301 is welded and fixed with the flange plate 202, and the other end of the first body 301 extends towards the space between the two I-shaped steels in an inclined mode;
the second body 302 extends horizontally towards the space between the two i-beams;
the width of the second body 302 is not less than 50 cm.
Preferably, in order to improve the structural stability of the steel reinforcement cage structure 4, the installation and construction convenience of the steel reinforcement cage structure 4 and the i-steel main body 2, and the stability of the steel reinforcement cage structure 4 and the i-steel main body 2 after installation, the steel reinforcement cage structure 4 in the embodiment includes a steel reinforcement cage 401 formed by fixing steel reinforcements 403 in a staggered manner (the structure of the steel reinforcement cage 401 still adopts the structure in the prior art, and details are not described here); and
angle steels 402 fixed at four corners of the reinforcement cage 401;
the angle steel 402 wraps the corner of the reinforcement cage 401, and anchor bolt holes are formed in the angle steel 402 at intervals along the length direction of the angle steel 402;
the connecting position of the flange plate 202 and the web plate 201 of the I-shaped steel is the installation position of an angle steel 402;
when the whole structure of the reinforcement cage 401 is embedded into a space between two I-shaped steels, the angle steel 402 is attached to the joint of the flange plate 202 and the web plate 201 and is fixedly connected with the flange plate 202 and the web plate 201 of the I-shaped steel respectively.
The angle steel 402, the flange plate 202 and the web plate 201 of the i-shaped steel are fixed by welding or anchor bolts.
Further preferred are: the reinforcement cage 401 is fixed to the i-beam by U-bolts 404 near the reinforcement of the i-beam. Because the angle steel can have the size to be the difference in height of angle steel 402 thickness with the I-steel laminating back, for the structural stability after further improving steel reinforcement cage 401 installation, choose for use reinforcing bar 403 of this department of U type bolt 404 interval fixation to improve the tensile force, avoid steel reinforcement cage 401 whole deformation.
Preferably, the space between the two i-beams is a first pouring space 101, and after the reinforcement cage structure 4 and the i-beam main body 2 are assembled, concrete is poured in the first pouring space 101;
the outer space of the I-shaped steel is a secondary pouring space 102, and after the concrete is poured in the primary pouring space 101, the concrete is poured in the secondary pouring space 102.
In the technical scheme, the utility model provides a pair of underground continuous wall stagnant water structure has following beneficial effect:
the utility model discloses an underground continuous wall stagnant water structure is through linking firmly on the flange board 202 of I-steel and preventing around the iron sheet layer 3 to the galvanized iron sheet that extends with the level in the slope has avoided underground continuous wall seam crossing serious and waterproof poor problem of infiltration. In addition, the angle steel 402 is arranged at the joint of the steel reinforcement cage structure 4 and the I-shaped steel main body 2, so that the structural stability of the steel reinforcement cage structure 4 is improved, the construction and installation of the steel reinforcement cage structure and the I-shaped steel main body are facilitated, and the butt joint is facilitated.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (7)
1. Underground continuous wall stagnant water structure, its characterized in that, this stagnant water structure includes:
an I-steel body (2);
a reinforcement cage structure (4) assembled in the I-steel main body (2);
the circumferential direction of the I-shaped steel main body (2) is fixedly connected with an anti-streaming iron sheet layer (3);
the anti-winding iron sheet layer (3) extends towards the inner side of the I-shaped steel main body (2) along the edge of the I-shaped steel main body (2);
a mounting assembly is arranged at the joint of the reinforcement cage structure (4) and the I-shaped steel main body (2);
concrete is poured around the I-shaped steel main body (2) and the reinforcement cage structure (4).
2. An underground continuous wall water stop structure according to claim 1, wherein the I-steel main body (2) comprises two separately arranged I-steels;
the thickness of the steel plate of the I-shaped steel is 1cm, the length of the web plate (201) is 66cm, and the length of the flange plate (202) is 42.5 cm;
and the anti-streaming iron skin layer (3) is welded and fixed on the flange plate (202) of the I-shaped steel.
3. An underground continuous wall water stop structure according to claim 2, wherein the anti-bypass iron sheath layer (3) is galvanized iron;
the anti-bypass iron sheet layer (3) comprises two parts, namely a first body (301) welded and fixed with the flange plate (202) of the I-shaped steel and a second body (302) integrally formed at the end part of one end, far away from the flange plate (202), of the first body (301);
one end of the first body (301) is fixedly welded with the flange plate (202), and the other end of the first body (301) extends towards a space between the two I-shaped steel in an inclined mode;
the second body (302) extends horizontally towards the space between the two i-beams;
the width of the second body (302) is not less than 50 cm.
4. An underground continuous wall water stop structure according to claim 2, wherein the reinforcement cage structure (4) comprises reinforcement cages (401) fixed by the staggered reinforcement bars (403); and
angle steels (402) fixed at four corners of the reinforcement cage (401);
the angle steel (402) wraps the corner of the reinforcement cage (401), and anchor bolt holes are formed in the angle steel (402) at intervals along the length direction of the angle steel;
the connecting position of a flange plate (202) and a web plate (201) of the I-shaped steel is the mounting position of the angle steel (402);
the steel reinforcement cage structure (4) is integrally embedded into two spaces between the I-shaped steels, the angle steel (402) is attached to the joint of the flange plate (202) and the web plate (201) and is fixedly connected with the flange plate (202) and the web plate (201) of the I-shaped steels respectively.
5. An underground continuous wall water stop structure according to claim 4, wherein the angle steel (402) is fixed with the flange plate (202) and the web plate (201) of the I-shaped steel through welding or anchor bolts.
6. An underground continuous wall water stop structure according to claim 4, wherein the reinforcement cage (401) is fixed to the I-shaped steel by U-shaped bolts (404) near the reinforcement (403) of the I-shaped steel.
7. The underground continuous wall water stop structure according to claim 1, wherein a space between two I-shaped steels is a first pouring space (101), and after the reinforcement cage structure (4) is assembled with the I-shaped steel main body (2), concrete is poured in the first pouring space (101);
the outer space of the I-shaped steel is a secondary pouring space (102), and after the concrete is poured in the primary pouring space (101), the concrete is poured in the secondary pouring space (102).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020375778.1U CN212153472U (en) | 2020-03-23 | 2020-03-23 | Underground continuous wall water stop structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020375778.1U CN212153472U (en) | 2020-03-23 | 2020-03-23 | Underground continuous wall water stop structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508094A (en) * | 2022-02-21 | 2022-05-17 | 中冶华南建设工程有限公司 | Underground diaphragm wall structure of water-rich karst geology and construction method thereof |
| CN115094933A (en) * | 2022-07-05 | 2022-09-23 | 中电建十一局工程有限公司 | Concrete anti-streaming reinforcement cage for diaphragm wall joint and construction method |
-
2020
- 2020-03-23 CN CN202020375778.1U patent/CN212153472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508094A (en) * | 2022-02-21 | 2022-05-17 | 中冶华南建设工程有限公司 | Underground diaphragm wall structure of water-rich karst geology and construction method thereof |
| CN115094933A (en) * | 2022-07-05 | 2022-09-23 | 中电建十一局工程有限公司 | Concrete anti-streaming reinforcement cage for diaphragm wall joint and construction method |
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