CN114277852A - Water-intercepting curtain ultra-deep impervious wall joint box and construction method - Google Patents
Water-intercepting curtain ultra-deep impervious wall joint box and construction method Download PDFInfo
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- CN114277852A CN114277852A CN202111467094.XA CN202111467094A CN114277852A CN 114277852 A CN114277852 A CN 114277852A CN 202111467094 A CN202111467094 A CN 202111467094A CN 114277852 A CN114277852 A CN 114277852A
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Abstract
The invention relates to a waterproof curtain ultra-deep impervious wall joint box and a construction method, which solve the problems that a wall body is difficult to be tightly connected, the joint box is difficult to be pulled up after concrete is cured by streaming and a box body is easy to damage in the pulling process in the prior art. The invention comprises a joint box body, wherein the joint box body comprises main body square steel, one side of the main body square steel is provided with small square steel, the other side of the main body square steel is provided with an arc steel plate, the surface of the main body square steel is provided with a thickened steel plate, carrying pole holes are uniformly distributed in the main body square steel, steel carrying poles are inserted into the carrying pole holes step by step, a joint box joint is arranged at the upper end of the joint box body, and the arc steel plate is provided with a connecting mechanism.
Description
The technical field is as follows:
the invention belongs to the technical field of design and construction of mine curtain impervious walls, underground curtain impervious walls and municipal construction underground cut-off curtain impervious walls, and relates to a cut-off curtain ultra-deep impervious wall joint box and a construction method.
Background art:
the waterproof curtain impervious wall is a building enclosure structure for open mines, underground buildings and subways, has the functions of water interception and seepage prevention, and ensures the safety production in mine pits and the safety of the underground buildings and subways. The impervious wall is formed by connecting different single walls, after the single wall section is excavated, joint boxes are arranged on two sides of the wall section and used as templates for carrying out concrete pouring to form the single wall body, when the two single wall bodies are connected, the joint devices on the adjacent sides are pulled out for carrying out concrete pouring, and the processes are repeated to integrate the single wall bodies into the integral curtain impervious wall.
Because an integral impervious wall is formed by connecting a plurality of single walls, a joint is arranged between each single wall, and the joint is a weak link of the impervious wall for retaining soil and preventing seepage. The shape and method of installation of the joint is critical to whether or not leakage will occur at the diaphragm wall joint. At present, the contact area of a traditional square joint device and a pouring groove section is small, the sealing performance of the joint of two single grooves cannot be guaranteed, the leakage condition is easy to occur, the box body is not closely connected with the groove wall and the groove bottom, slurry flows around after concrete is poured, the box body is difficult to pull out after being hardened, and the joint box is damaged to fall into the groove section in serious cases, so that the quality defect of a wall body is caused.
The invention content is as follows:
the invention aims to provide a water-intercepting curtain ultra-deep impervious wall joint box and a construction method, which solve the problems that in the prior art, a wall body is difficult to be tightly connected, the joint box is difficult to be pulled up after concrete is cured by streaming and a box body is easy to damage in the pulling process.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a cut ultra-deep impervious wall of water curtain connects case which characterized in that: including connecting the case box, connect the case box and include the main part square steel, one side of main part square steel is provided with little square steel, and the opposite side of main part square steel is provided with the circular arc steel sheet, and the surface of main part square steel is provided with the thickening steel sheet, and the shoulder pole hole evenly arranges inside the main part square steel, and the steel shoulder pole inserts the shoulder pole hole step by step, connects case box upper end to be provided with and connects the case, is provided with coupling mechanism on the circular arc steel sheet.
The circular arc steel plate is tightly attached to the square steel of the joint box main body, and the diameter of the outer side of the circular arc steel plate is consistent with the thickness of the square steel of the single-side joint box main body.
The connecting mechanism arranged on the arc steel plate comprises connecting steel plates arranged on the arc steel plate, and the connecting steel plates are connected through hinges.
The small square steel is tightly attached to the outer side of the main body square steel and is arranged in the same full length with the main body square steel.
The thickened steel plates are arranged on the upper parts of all the shoulder pole holes except the uppermost shoulder pole hole and are adjacent to the steel plates at the top of the shoulder pole holes.
The tail end of the main body square steel and the upper part of the joint box joint are provided with pin holes, two joint boxes are connected through the pin holes by pins, and the distance from the pin hole at the tail end of the joint box main body square steel to the lower edge of the joint box main body square steel is equal to the distance from the pin hole in the joint box joint to the upper edge of the joint box main body square steel.
The fan-shaped steel plate is welded between the arc steel plate and the main body square steel and is uniformly arranged along the length direction of the main body square steel.
And a supporting square steel is arranged between the square steels of the two joint box main bodies.
Hoisting holes are horizontally and uniformly arranged on the joint of the joint box.
A construction method adopting a water-intercepting curtain ultra-deep impervious wall joint box is characterized in that: the method comprises the following steps:
firstly, a hydraulic grab bucket and a double-wheel mill are adopted for sectionally forming the groove, and the wall protection effect of slurry is utilized to prevent the groove hole from collapsing;
after each groove section is grooved, lowering joint devices at two sides of each groove section, wherein the arc steel plate faces the inner side of the excavated groove section, and the small square steel faces the trenchless groove section;
hoisting the oil top by a crane, sleeving the oil top on the impervious wall joint box, enabling the carrying pole to penetrate through the carrying pole hole to be clamped on the oil top, connecting a pin hole at the bottom of the box body of the other joint box with a pin hole at the joint of the lower joint box by using a pin, and completing the lower placement of the joint box by the crane;
fourthly, after the lower part of the joint box is in place, the joint box is opened at a certain angle by means of external force, so that the main body of the joint box is tightly attached to the wall of the groove;
fifthly, pouring concrete in the groove sections in a halved mode, after the concrete is initially set, shrinking the two box bodies of the joint box towards the center, meanwhile, enabling the carrying pole to penetrate through the carrying pole hole, and enabling the joint box to move up and down through the oil top;
sixthly, excavating a lateral groove section to the bottom, clamping a grab bucket side plate of a grab groove machine into the small square steel on one side of the joint box, and laterally shifting the movable joint box;
seventhly, inserting the steel carrying pole into the carrying pole hole step by step, jacking the steel carrying pole step by step through an oil top to jack the joint box, and completing the jacking and removing of the joint box by means of a crane;
eighthly, pouring concrete to complete the connection of the impervious walls;
and (ninthly) repeating the steps (a) to (eight) to complete the whole impervious wall.
Compared with the prior art, the invention has the following advantages and effects:
1. according to the joint box, the arc-shaped steel plate is placed on the side, to be poured, of concrete in the construction of the impervious wall to form arc connection, so that the contact area of the junction of the impervious wall is increased, the seepage-proofing effect of the joint is better, and the seepage is not easy to occur. Meanwhile, the two box bodies of the joint box can be opened after the joint box is placed down, so that the joint box is tightly contacted with the groove wall, the area of the joint is increased, meanwhile, the turbulence of concrete can be effectively prevented, the two box bodies of the joint box can be contracted towards the center through the lateral pressure of an oil top during jacking, and the joint box is separated from the groove wall, so that the jacking is facilitated.
2. This impervious wall connects and can realize connecting the case side direction activity under the grooving machine effect along the little square steel that main part square steel was arranged, reduce the push-out pressure, this impervious wall connects difficult destruction at the push-out in-process after thickening steel sheet reinforcement on hole upper portion of the shoulder pole of case simultaneously, it is big to have overcome the impervious wall and connected the case at the push-out in-process push-out degree of difficulty, the problem of box structure easy destruction, the atress size of shoulder pole when two shoulder poles simultaneously push-out can reduce the push-out, and can make things convenient for the workman to construct, the design in two tip holes possesses this advantage equally.
Description of the drawings:
FIG. 1 is a front view of a special joint box for a diaphragm wall according to the present invention;
FIG. 2 is a right side view of the special joint box for the impervious wall according to the present invention;
FIG. 3 is a top view of the special joint box for the impervious wall of the present invention;
FIG. 4 is a schematic representation of a steel shoulder pole of the present invention;
FIG. 5 is a schematic view of a tip of the present invention;
FIG. 6 is a schematic drawing of a steel shoulder pole perforation according to the present invention;
FIG. 7 is a schematic view showing the lowering position of the diaphragm wall joint box according to the present invention;
FIG. 8 is a top side view of the connector housing of the present invention;
fig. 9 is a schematic view of the splice case of the present invention expanded after it is lowered.
In the figure: 1. main body square steel; 2. a circular arc steel plate; 3. small square steel; 4. thickening a steel plate; 5. a steel carrying pole; 6. carrying pole holes; 7. a tip; 8. a tip hole; 9. a sector steel plate; 10. connecting steel plates; 11. a hinge; 12. supporting square steel; 13. a joint box joint; 14. and (6) hoisting holes.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention relates to an ultra-deep impervious wall joint box of a water cut curtain, which comprises a groove section, an oil top, an impervious wall joint box, a carrying pole and pins, wherein an arc steel plate on the left side of the impervious wall joint box is positioned on the inner side of an excavated groove section, the oil top is lifted up through a crane and sleeved on the joint box, and the oil top is connected with the pin through a pin hole at the bottom of the box body and a pin hole at the joint by using the pins.
As a preferred design, the plane size of the carrying pole hole is slightly larger than that of the carrying pole, so that the carrying pole can also penetrate through the carrying pole hole under slight deformation of the joint box, and 18 carrying pole holes are arranged on the single surface in total.
In a preferred embodiment, the pin hole has a slightly larger plan dimension than the pin plan dimension, which facilitates insertion of the pin during splicing of the joint housing.
As a preferable design scheme, the size of the thickened steel plate is thicker than that of the square steel of the joint box main body, and the thickened steel plate is arranged at the upper part of the shoulder pole hole.
As a preferable design scheme, the supporting square steel is arranged between the two main square steels to prevent the square steels from being close to each other.
As a preferable design scheme, the hinge is arranged between the connecting steel plates and connects the two square steels.
As a preferable design scheme, the fan-shaped steel plates are just clamped between the main square steel and the arc steel plates of the joint box in size and are uniformly arranged along the length direction of the joint box.
As an optimal design scheme, when the joint box is lowered, the arc steel plate connected with the joint box body is positioned on the inner side of the excavated groove section, and the small square steel faces the trenchless groove section.
In a preferred design, the lower part of the joint box is opened by a certain angle as required to enable the joint box to be tightly connected with the groove wall.
Referring to fig. 1 to 9, the present invention includes a main body square steel 1, a small square steel 3 located on the right side of the main body square steel 1, an arc steel plate 2 located on the left side of the main body square steel 1, a thickened steel plate 4 located on the surface of the main body square steel 1, a carrying pole hole 6 located inside the main body square steel 1, a pin hole 8 located at the end of the main body square steel 1 and at the upper part of a joint box joint 13, a connecting steel plate 10 closely attached to the arc steel plate 2, a hinge 11 connecting the two connecting steel plates 10, and a supporting square steel 12 connecting the two main body square steels 1. The small square steel 3 is tightly attached to the outer side of the main body square steel 1 and is arranged in the same full length with the main body square steel 1. The circular arc steel plate 2 is tightly attached to the square steel 1 of the joint box main body, and the diameter of the outer side of the circular arc steel plate 2 is consistent with the thickness of the square steel 1 of the single-side joint box main body. The fan-shaped steel plate 9 is welded between the arc steel plate 2 and the main body square steel 1, and the main body square steel is uniformly arranged in the length direction. The supporting square steel 12 is arranged between the square steel 1 of the two joint box main bodies to prevent the upper part and the lower part of the joint box from abutting. The hoisting holes 14 are evenly arranged horizontally on the joint box joint 13.
The joint box joint 13 is welded on the upper side of the joint box main body, the pin holes 8 are arranged at the tail end of the main body square steel 1 and the upper part of the joint box joint 13, and the distance from the pin holes 8 at the tail end of the joint box main body square steel 1 to the lower edge of the joint box main body square steel 1 is equal to the distance from the pin holes 8 in the joint box joint 13 to the upper edge of the joint box main body square steel 1.
The invention also provides a construction method of the ultra-deep impervious wall joint box adopting the water-intercepting curtain, which comprises the following steps:
firstly, a hydraulic grab bucket and a double-wheel mill are adopted for sectionally forming the groove, and the wall protection effect of slurry is utilized to prevent the groove hole from collapsing;
after each groove section is grooved, lowering joint devices at two sides of each groove section, wherein the arc steel plate faces the inner side of the excavated groove section, and the small square steel faces the trenchless groove section;
hoisting the oil top by a crane, sleeving the oil top on the impervious wall joint box, enabling the carrying pole to penetrate through the carrying pole hole to be clamped on the oil top, connecting a pin hole at the bottom of the box body of the other joint box with a pin hole at the joint of the lower joint box by using a pin, and completing the lower placement of the joint box by the crane;
fourthly, after the lower part of the joint box is in place, the joint box is opened at a certain angle by means of external force, so that the main body of the joint box is tightly attached to the wall of the groove;
fifthly, pouring concrete in the groove sections in a halved mode, after the concrete is initially set, shrinking the two box bodies of the joint box towards the center, enabling the shoulder pole to penetrate through the shoulder pole hole, and enabling the joint box to move up and down by using oil;
sixthly, excavating a lateral groove section to the bottom, clamping a grab bucket side plate of a grab groove machine into the small square steel on one side of the joint box, and laterally shifting the movable joint box;
seventhly, inserting the steel carrying pole into the carrying pole hole step by step, jacking the steel carrying pole step by step through an oil top to jack the joint box, and completing the jacking and removing of the joint box by means of a crane;
eighthly, pouring concrete to complete the connection of the impervious walls;
and (ninthly) repeating the steps (a) to (eight) to complete the whole impervious wall.
Example (b):
referring to fig. 1-9, the invention discloses a special joint box for an impervious wall, which comprises a joint box main body square steel 1, an arc steel plate 2, a small square steel 3, a thickened steel plate 4, a steel carrying pole 5, a carrying pole hole 6, a pin 7, a pin hole 8, a round steel plate 9, a connecting steel plate 10, a hinge 11, a supporting square steel 12, a joint box joint 13 and a hoisting hole 14. The small square steel 3 is tightly attached to the square steel 1 of the main body of the joint box and welded at the top corner of the square steel 1 of the main body through electric welding, the outer edge of the small square steel is flush with the square steel 1 of the main body, the thickened steel plate 4 is arranged on the upper portion of the shoulder pole hole 6 and is tightly attached to the steel plate on the outer side of the shoulder pole hole 6, the pin holes 8 are distributed at the top of the joint box joint 13, and the pins 7 are used for connection between the joint boxes special for the ultra-deep impervious wall. According to 1 thickness of joint case main part square steel set up the circular arc steel sheet 4 that the radius equals, fan-shaped steel sheet 9 sets up between joint case main part square steel 1 and the circular arc steel sheet, and connecting plate 10 meets with the circular arc steel sheet isopachous, and two connecting plate 10 are connected to hinge 11, and the welding of little steel sheet 12 plays and lets two main part steel sheets 1 avoid near effect in the inside one side of a joint case main part square steel 1.
Specifically, the thicknesses of the square steel 1, the small square steel 2, the arc steel plate 2, the fan-shaped steel plate 9 and the connecting steel plate 10 of the joint box main body are consistent.
In this embodiment, the thickness of the thickened steel plate 4 is thicker than that of the square steel 1 of the joint box main body. Specifically, the thickened steel plates 4 are distributed on the upper parts of all the shoulder pole holes except the top shoulder pole hole, so that the bearing force is larger in the jacking and pulling process, and the phenomenon that the joint box is burst is avoided.
In the embodiment, the special connector box for the ultra-deep impervious wall is hoisted by the crane through the hoisting shackle and the hoisting steel wire rope. Specifically, the hoisting steel wire rope is hung on a lifting hook of a crane, the special anti-seepage wall joint box is arranged in the groove section through hoisting, and the oil top jacking is assisted through the crane in the jacking process.
In this embodiment, the shoulder pole holes 6 are provided in the joint box main body square steel 1. Specifically, the centers of two carrying pole holes 6 in the same row are respectively arranged at the positions 1/3 and 2/3 in the width direction of the square steel 1 of the joint box main body, and are specifically distributed as shown in the figure.
In the embodiment, the arc steel plate 2 is connected with the fan-shaped steel plate 9 and the connecting steel plate 10, and the two small square steel parts 3-the main square steel part 1-the circular steel plate 9-the arc steel plate 2 are connected through the hinge 11. Specifically, the outer diameter of the circular arc steel plate 2 is consistent with the thickness of the square steel 1 of the joint box main body and consistent with the connecting steel plate 10, and the specific structure of the circular arc steel plate 2 is shown in fig. 2.
In this embodiment, the hoisting hole 14 is used for hoisting and jacking the impervious wall joint box. Specifically, the hoisting hole 14 is located at the upper part of the joint box, the circle center of the hoisting hole 14 is consistent with the central horizontal position of the shoulder pole hole 6, and the specific size of the hoisting hole 14 is shown in the figure.
The key steps of the embodiment are as shown in fig. 7 and 8, after the excavation of the first slot section is completed, the connector box uses the assistance of a crane to enable the arc steel plate 2 to face the inner side of the excavated slot section, after the arc steel plate is put in place, two connector boxes are opened to be tightly attached to the slot wall, after the concrete is poured and initially set, the box bodies of the two connector boxes are contracted towards the center, and meanwhile, the steel carrying pole 5 penetrating through the carrying pole hole 6 is jacked up by using the oil top and the bottom as shown in fig. 6; before the connector box is pulled out, the side wall of a grab bucket of a grab machine is clamped inside two small square steels 3 to be laterally pulled as shown in fig. 8, then the steel carrying pole is gradually jacked up through an oil top to remove the connector box, and the process of lowering and pulling out to remove the impervious wall needs the assistance of a crane.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a cut ultra-deep impervious wall of water curtain connects case which characterized in that: the connecting box comprises a connecting box body, wherein the connecting box body comprises main body square steel (1), one side of the main body square steel (1) is provided with small square steel (3), the other side of the main body square steel (1) is provided with an arc steel plate (2), the surface of the main body square steel (1) is provided with a thickened steel plate (4), carrying pole holes (6) are uniformly distributed in the main body square steel (1), carrying pole holes (6) are gradually inserted into steel carrying poles (5), a connecting box joint (13) is arranged at the upper end of the connecting box body, and a connecting mechanism is arranged on the arc steel plate (2).
2. The water interception curtain ultra-deep impervious wall joint box according to claim 1, wherein: the circular arc steel plate (2) is tightly attached to the square steel (1) of the joint box main body, and the diameter of the outer side of the circular arc steel plate (2) is consistent with the thickness of the square steel (1) of the single-side joint box main body.
3. The water interception heavy curtain ultra-deep impervious wall joint box according to claim 1 or 2, wherein: the connecting mechanism arranged on the arc steel plate (2) comprises connecting steel plates (10) arranged on the arc steel plate (2), and the connecting steel plates (10) are connected through hinges (11).
4. The water interception curtain ultra-deep impervious wall joint box according to claim 3, wherein: the small square steel (3) is tightly attached to the outer side of the main body square steel (1) and is arranged with the main body square steel (1) in a consistent and full-length mode.
5. The water interception curtain ultra-deep impervious wall joint box according to claim 4, wherein: the thickened steel plates (4) are arranged on the upper parts of all the shoulder pole holes (6) except the uppermost shoulder pole hole (6) and are close to the steel plates at the tops of the shoulder pole holes (6).
6. The water interception curtain ultra-deep impervious wall joint box according to claim 7, wherein: the terminal of main part square steel (1) and joint case connect (13) upper portion and have arranged tip hole (8), and two sections joint case are passed through tip hole (8) with tip (7) and are connected, and the distance of tip hole (8) to joint case main part square steel (1) end of joint case main part square steel (1) lower limb equals with the distance of tip hole (8) to joint case main part square steel (1) upper limb in joint case joint (13).
7. The water interception curtain ultra-deep impervious wall joint box according to claim 8, wherein: the fan-shaped steel plates (9) are welded between the arc steel plates (2) and the main body square steel (1) and are uniformly arranged along the length direction of the main body square steel.
8. The water interception curtain ultra-deep impervious wall joint box according to claim 7, wherein: and a supporting square steel (12) is arranged between the two joint box main body square steels (1).
9. The water interception curtain ultra-deep impervious wall joint box according to claim 8, wherein: hoisting holes (14) are horizontally and uniformly arranged on the joint box joint (13).
10. A construction method using the water interception curtain ultra-deep cut-off wall joint box of claim 1, characterized in that: the method comprises the following steps:
firstly, a hydraulic grab bucket and a double-wheel mill are adopted for sectionally forming the groove, and the wall protection effect of slurry is utilized to prevent the groove hole from collapsing;
after each groove section is grooved, lowering joint devices at two sides of each groove section, wherein the arc steel plate faces the inner side of the excavated groove section, and the small square steel faces the trenchless groove section;
hoisting the oil top by a crane, sleeving the oil top on the impervious wall joint box, enabling the carrying pole to penetrate through the carrying pole hole to be clamped on the oil top, connecting a pin hole at the bottom of the box body of the other joint box with a pin hole at the joint of the lower joint box by using a pin, and completing the lower placement of the joint box by the crane;
fourthly, after the lower part of the joint box is in place, the joint box is opened at a certain angle by means of external force, so that the main body of the joint box is tightly attached to the wall of the groove;
fifthly, pouring concrete in the groove sections in a halved mode, after the concrete is initially set, shrinking the two box bodies of the joint box towards the center, meanwhile, enabling the carrying pole to penetrate through the carrying pole hole, and enabling the joint box to move up and down through the oil top;
sixthly, excavating a lateral groove section to the bottom, clamping a grab bucket side plate of a grab groove machine into the small square steel on one side of the joint box, and laterally shifting the movable joint box;
seventhly, inserting the steel carrying pole into the carrying pole hole step by step, jacking the steel carrying pole step by step through an oil top to jack the joint box, and completing the jacking and removing of the joint box by means of a crane;
eighthly, pouring concrete to complete the connection of the impervious walls;
and (ninthly) repeating the steps (a) to (eight) to complete the whole impervious wall.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111467094.XA CN114277852A (en) | 2021-12-02 | 2021-12-02 | Water-intercepting curtain ultra-deep impervious wall joint box and construction method |
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| CN202111467094.XA CN114277852A (en) | 2021-12-02 | 2021-12-02 | Water-intercepting curtain ultra-deep impervious wall joint box and construction method |
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| CN114277852A true CN114277852A (en) | 2022-04-05 |
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| CN212052708U (en) * | 2020-03-23 | 2020-12-01 | 中国建筑第四工程局有限公司 | Novel underground continuous wall joint box |
| CN112144557A (en) * | 2020-09-02 | 2020-12-29 | 泉州市哈赛欧典科技有限公司 | Rapid construction device and method for impervious wall |
| CN112281879A (en) * | 2020-10-30 | 2021-01-29 | 中煤科工集团西安研究院有限公司 | Anti-seepage film connecting device for water-intercepting curtain and water-intercepting curtain construction method |
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- 2021-12-02 CN CN202111467094.XA patent/CN114277852A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202787328U (en) * | 2012-08-14 | 2013-03-13 | 武汉地质勘察基础工程有限公司 | Underground continuous wall connecting device |
| CN204185880U (en) * | 2014-10-27 | 2015-03-04 | 中铁三局集团广东建设工程有限公司 | A kind of joint case preventing continuous wall concrete from refluxing |
| CN110258695A (en) * | 2019-06-24 | 2019-09-20 | 中国电建集团河南工程有限公司 | The construction method of big partial size cobble mixed soil hydraulic grab diaphram wall |
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