CN214460653U

CN214460653U - Ground crack department slip casting union coupling structure

Info

Publication number: CN214460653U
Application number: CN202022783187.0U
Authority: CN
Inventors: 李诗浩; 梁存君; 贾鑫鑫; 崔仲卉; 张川; 金青
Original assignee: China Construction First Group Corp Ltd
Current assignee: China Construction First Group Corp Ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-10-22
Anticipated expiration: 2030-11-26

Abstract

The utility model provides a pair of ground crack department slip casting union coupling structure, including slip casting tubular construction unit more than 2, every slip casting tubular construction unit includes: slip casting pipe, play thick liquid pipe, connecting pipe, supplementary fixed reinforcing bar, slip casting box. The slip casting pipe is the full section slip casting pipe of repeated slip casting, and the quantity of slip casting pipe is no less than 2, and every slip casting pipe both ends have slip casting pipe and the play thick liquid pipe that links to each other with it respectively, and every slip casting pipe shaft has the supplementary fixed steel bar that is no less than 2. The connecting pipe is L-shaped elbow, the grouting guide pipe is connected with the grouting pipe through the connecting pipe, the grout outlet guide pipe is connected with the grouting pipe through the connecting pipe, and the adjacent grouting guide pipe and the grout outlet guide pipe are respectively connected with the grouting box. The utility model provides a slip casting union coupling structure, the installation is swift, and construction process is simple, can repeat the slip casting.

Description

Ground crack department slip casting union coupling structure

Technical Field

The utility model relates to a construction field especially relates to a ground crack department slip casting union coupling structure.

Background

In the construction process, when underground spaces of large cities such as tunnels, subways and basements pass through ground crack regions, cracks are further generated due to the fact that in the ground crack regions, deformation joints and ground cracks are small in movement cooperative deformation capacity, concrete castings of different sections of the buildings are different in settlement, and coefficients of thermal expansion and cold contraction of the cast-in-place concrete and the cast-in-place concrete are different. These defects are fatal injuries in concrete pouring projects, directly affect the quality and the service life of the concrete pouring projects, become a problem which is difficult to solve in concrete pouring construction, and troubles construction teams for a long time.

The crack problem is handled at present stage, adopts modes such as waterstop, water swelling sealing rod, stagnant water glue, the high-pressure grout of punching after to block more, mainly has following problem: (1) the device comprises a telescopic arm and a sucking disc connected below the telescopic arm, wherein a fine adjustment turntable is arranged on an arm support and can drive the telescopic arm to rotate 360 degrees relative to the sucking disc; one end of the telescopic arm is provided with a nozzle, and the other end of the telescopic arm is provided with an elastic driven disc which is flush with the sucker; the top of the nozzle is respectively connected with a grouting pipeline and a gas injection pipeline, and the change-over switch is arranged on the side edge of the nozzle; the nozzle is a telescopic nozzle, a semicircular protective cover is arranged on one side of the telescopic nozzle, and the rolling roller is arranged on the opposite side of the semicircular protective cover; the nozzle is a singlechip-controlled nozzle, and a gray sensor is also arranged on the nozzle; the structure is complex, and the installation and the use are time-consuming and labor-consuming. (2) The water-stop structure comprises a pre-buried grouting guide pipe, a grouting main pipe and a water-swelling water-stop strip, wherein the grouting main pipe and the water-swelling water-stop strip are fixed with the structure through a connecting piece, grouting holes are formed in the grouting main pipe every 20-30 cm and are wrapped by a single-layer filter screen, and the grouting holes are temporarily blocked by using adhesive tapes; the grouting holes are adopted for grouting, so that the holes are easy to block and can only be used for grouting at a fixed distance; (3) the device is not reusable, and is easy to cause material waste when the amount of the repairing material cannot be estimated, for example, in the prior art, the device for repairing the concrete crack comprises a grouting device, wherein the grouting device comprises a grouting barrel, a gland is arranged at an opening at the upper end of the grouting barrel, and a hollow grout outlet head communicated with an inner cavity of the grouting barrel is arranged at the lower end of the grouting barrel; a through hole is formed in the center of the gland, a hollow pressure rod penetrates through the through hole in a sliding manner, and a hollow piston body matched with the inner wall of the grouting cylinder is arranged at the lower end of the hollow pressure rod in the inner cavity of the grouting cylinder; an arc-shaped installation cavity communicated with the center hole of the piston body is formed in the lower end face of the piston body, an arc-shaped plug matched with the arc-shaped installation cavity is installed in the arc-shaped installation cavity, a hollowed support plate is installed in the center hole of the piston body, a support plate center hole is formed in the hollowed support plate, a connecting rod is arranged at the upper end of the arc-shaped plug, the connecting rod is slidably arranged in the support plate center hole in a penetrating mode, a locking nut is screwed at the upper end of the connecting rod, and a support spring is sleeved on the connecting rod between the locking nut and the upper end face of the hollowed support plate; it can be used for grouting only once, and can not be reused.

Disclosure of Invention

In order to solve the technical problem, the utility model provides an installation is swift, can repeat the slip casting, fills the ground crack department slip casting union coupling structure that the effect is excellent, construction process is simple.

The utility model provides a pair of ground crack department slip casting union coupling structure, it includes slip casting tubular construction unit more than 2, and every slip casting tubular construction unit includes: slip casting pipe, play thick liquid pipe, connecting pipe, supplementary fixed reinforcing bar, slip casting box.

Preferably, the grouting pipes are full-section grouting pipes capable of performing grouting repeatedly, two grouting pipes of two adjacent continuous grouting pipe structural units must be overlapped by at least 150mm from head to tail, and the transverse distance is 30-50 mm;

preferably, the length of each slip casting pipe is not more than 6m, the slip casting pipe and the grout outlet pipe which are connected with the slip casting pipe are respectively arranged at the two ends of each slip casting pipe, each slip casting pipe body is provided with not less than 2 auxiliary fixing steel bars, and the distance between the auxiliary fixing steel bars is not more than 300 mm.

Preferably, the connecting pipe is an L-shaped elbow, the grouting pipe and the grout outlet pipe are plastic hoses, the grouting pipe and the grouting pipe are connected through the connecting pipe, the grout outlet pipe and the grouting pipe are connected through the connecting pipe, and the grouting pipe and the grout outlet pipe of the adjacent grouting pipe structure units are respectively connected with a grouting box.

Preferably, the grouting box comprises: slip casting mouth, exhaust nozzle, interface box, fixed bolster, the interface box is open-top's hollow box, and first half of slip casting mouth and first half of exhaust nozzle are located inside the interface box, and the interface box bottom portion and slip casting pipe connection are stretched out to the latter half of slip casting mouth, and the interface box bottom portion and play thick liquid pipe connection are stretched out to the latter half of exhaust nozzle, and the interface box bottom is equipped with the fixed bolster, and the fixed bolster is connected with the structure reinforcing bar, and the interface box top surface flushes with the structure dorsal surface.

The utility model discloses owing to adopt above technical scheme, its technical effect who reaches has:

1. because the utility model relates to a ground crack department slip casting union coupling structure's simple structure, the installation is swift, and the input labour is few, efficient.

2. Because the grouting pipes are pre-embedded in advance and poured in concrete, the pre-embedded positions and the number of the grouting pipes are selected according to the positions of other pre-embedded parts in site construction and the condition that the pre-embedded parts do not influence each other. The number of the grouting pipes is preferably not less than 2, the length of each grouting pipe is not more than 6m, and cracks can not be completely filled because the length of the grouting pipes is more than 6m, so that the length of each grouting pipe is not more than 6m, gaps at different positions with different intervals can be filled conveniently, and a good filling effect is ensured.

3. The utility model discloses the slip casting pipe is the full section slip casting pipe of repeated slip casting, and every slip casting pipe both ends have the slip casting pipe that links to each other with it and go out the thick liquid pipe respectively, can used repeatedly and according to the selective slip casting in crack position, avoid causing grouting material extravagant, accord with green's theory.

4. Because the grouting guide pipe is connected with the grouting pipe through the connecting pipe, the grout outlet guide pipe is connected with the grouting pipe through the connecting pipe, the adjacent grouting guide pipe and the adjacent grout outlet guide pipe are respectively connected with the grouting box, when the grouting box is used, grout is injected into the pipe body from the grouting guide pipe, and the grout seeps out from the pipe body under the action of grouting pressure, so that the aim of filling gaps and stopping water is fulfilled.

5. The utility model discloses owing to reserved slip casting box, can carry out effectual protection to slip casting pipe and grout outlet pipe oral area, destroy, block up, flood slip casting pipe and grout outlet pipe when preventing the structure construction.

Drawings

FIG. 1 is a three-dimensional schematic view of a grout pipe connection at a ground fracture;

FIG. 2 is a three-dimensional schematic view of a grouting box;

wherein: 1 is the slip casting pipe, 2 is the slip casting pipe, 3 is the grout outlet pipe, 4 is the connecting pipe, 5 is supplementary fixed steel bar, 6 is the slip casting box, 7 is the slip casting mouth, 8 is the exhaust nozzle, 9 is the interface box, 10 is the fixed bolster, 11 is the structural reinforcement, 12 is the structure wallboard.

Detailed Description

The following description of the embodiments according to the present invention is made with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and the present invention is not limited to the specific embodiments disclosed below.

In order to solve traditional construction method process complicacy, waste time and energy, can't be used for a plurality of cracks in a flexible way, and the not good problem of shutoff effect, the utility model provides a pair of ground crack department slip casting coupling structure.

As shown in fig. 1, the structure of the grouting pipe connection at the ground fissure comprises 2 grouting pipe structural units, wherein each grouting pipe structural unit comprises: slip casting pipe 1, slip casting pipe 2, play thick liquid pipe 3, connecting pipe 4, supplementary fixed reinforcing bar 5, slip casting box 6.

As shown in fig. 1, in this embodiment, the grouting pipes 1 are full-section grouting pipes capable of performing repeated grouting, the number of the grouting pipes 1 is at least 2, two adjacent grouting pipes 1 must overlap at least 150mm end to end, the transverse distance is 30-50mm, the length of each grouting pipe 1 is not greater than 6m, and the length is selected to fill gaps at different intervals and different positions conveniently, so as to ensure the filling effect. The grouting pipe 1 can selectively perform grouting according to crack positions, so that the waste of grouting materials is avoided, and the green and environment-friendly concept is met. When a plurality of grouting pipes 1 are arranged, the structure can be simultaneously used for repairing cracks with different distances. The two ends of each grouting pipe 1 are respectively provided with a grouting guide pipe 2 and a grout outlet guide pipe 3 which are connected with the grouting pipe 1, the outer diameter of the grouting guide pipe 2 and the outer diameter of the grout outlet guide pipe 3 are 13mm, the inner diameter of the grouting guide pipe 2 is 7mm, the pipe body of each grouting pipe 1 is provided with 2 auxiliary fixing steel bars 5, the diameter of each auxiliary fixing steel bar 5 is 14mm, and the distance between every two adjacent auxiliary fixing steel bars is not more than 300 mm. The length and the position of the grouting pipe body can be kept according to the comprehensive consideration of site construction conditions, the positions of other embedded parts, the positions of construction joints and the like.

The material of the grout pipe 1 of the grout pipe connection structure at the ground fracture is preferably a material having high compressive strength which can be reused. The cross-sectional dimensions of the grouting pipe 1 and the auxiliary fixing steel bar 5 can also be set according to actual requirements, which are not listed here, as long as the grouting pipe 1 and the auxiliary fixing steel bar 5 have the functions.

Further, in combination with the above embodiment, the grouting pipe 2 of the grouting pipe connection structure at the ground fissure is connected with the grouting pipe 1 through the connecting pipe 4. The connecting pipe 4 can be an L-shaped elbow, and during specific connection, the inner diameter of one end of the L-shaped elbow is closely matched and connected with the outer diameter of the grouting pipe 1, and the outer diameter of the other end of the L-shaped elbow is closely matched and connected with the inner diameter of the grouting pipe 2. The slurry outlet conduit 3 is connected with the grouting pipe 1 through a connecting pipe 4. The connecting pipe 4 can also be an L-shaped elbow, and during specific connection, the inner diameter of one end of the L-shaped elbow is closely matched and connected with the outer diameter of the grouting pipe 1, and the outer diameter of the other end of the L-shaped elbow is closely matched and connected with the inner diameter of the grout outlet pipe 3. The grouting guide pipe 2 and the grout outlet guide pipe 3 are plastic hoses, and the grouting guide pipe 2 and the grout outlet guide pipe 3 of the adjacent grouting pipes 1 are respectively connected with a grouting box 6. This structural design is simple, and in the actual installation, easy and simple to handle, the installation work is single alright completion, practices thrift the human cost.

The connection pipe 4, the grouting pipe 2, and the grout outlet pipe 3 of the grouting pipe connection structure at the ground fissure are preferably made of a pressure-resistant material, and the cross-sectional dimensions may be set according to actual needs, so long as the connection pipe 4, the grouting pipe 2, and the grout outlet pipe 3 function as described above.

Further, in combination with the above-described embodiment, the grouting box 6 of the grouting pipe connection structure at the ground fracture includes: grouting nozzle 7, exhaust nozzle 8, interface box 9, fixed bolster 10. The interface box 9 is a hollow box with an opening at the top, and the hollow box is a stainless steel cylindrical box with the inner diameter of 60mm, the wall thickness of 5mm and the depth of 50 mm. The first half of

slip casting mouth

7 and 8 first halves of blast nozzle are located inside

interface box

9, 7 latter halves of slip casting mouth stretch out 9 bottoms of interface box and slip casting pipe 2 and are connected, 8 latter halves of blast nozzle stretch out 9 bottoms of interface box and grout outlet pipe 3 and are connected, slip casting mouth 7 and blast nozzle 8 are internal diameter and

slip casting pipe

2, 3 external diameter closely matched with stainless steel pipe of grout outlet pipe, 9 bottoms of interface box are equipped with fixed bolster 10, fixed bolster 10 is connected with

structural reinforcement

11, 10 length of fixed bolster is the same with structural reinforcement interval, 9 top surfaces of interface box flush with the 12 levels of a backing surface of structure. Owing to reserved slip casting box 6, can carry out effectual protection to slip casting pipe 2 and play thick liquid pipe 3 oral area, destroy, block up, submerge slip casting pipe 2 and play thick liquid pipe 3 during the prevention structure construction.

In another preferred embodiment, the grouting nozzle 7, the air discharging nozzle 8, the interface box 9 and the fixing bracket 10 of the grouting pipe connection structure at the ground fissure are preferably made of high-strength materials, and the size and shape can be set according to actual requirements as long as the grouting nozzle 7, the air discharging nozzle 8, the interface box 9 and the fixing bracket 10 have the functions.

The grouting pipes, the grouting guide pipe, the grout outlet guide pipe and the connecting pipe are all communicated. The connection between the grouting guide pipe and the grouting nozzle and the connection between the grout outlet guide pipe and the exhaust nozzle are also communicated.

By adopting the technical scheme, the exhaust nozzle 8 can be blocked, the grouting nozzle 7 is used for grouting the pipe body, and the slurry seeps out of the pipe body of the grouting pipe 1 under the grouting pressure, so that the purpose of filling the gap and stopping water is achieved. The structure is simple, the installation is rapid, the investment labor is less, and the efficiency is high.

The utility model discloses the simple installation, the material loss is low, and repeatedly usable after the installation accords with green construction requirement.

The use method of the present invention is described below, as shown in fig. 1 and fig. 2:

(1) injecting clear water into the grouting pipe 1 by using a grouting pump, specifically injecting the clear water into the grouting pipe 1 through the grouting nozzle 7 and the grouting guide pipe 2, discharging the clear water through the grout outlet guide pipe 3 and the exhaust nozzle 8 after water is injected and cleaned, and stopping injecting water after the water discharged by the exhaust nozzle 8 is clear and has no obvious impurities;

(2) grouting from a grouting nozzle 7, injecting slurry into the grouting pipe 1 through a grouting guide pipe 2, plugging the exhaust nozzle 8 when the slurry flows out from the exhaust nozzle 8 through a slurry outlet guide pipe 3, and continuously slowly pressurizing gradually to perform grouting;

(3) grouting material no longer flows in and the pressure gauge shows no or little pressure loss, and grouting is stopped after the pressure is maintained for at least 2 minutes;

(4) and after grouting is finished, opening the exhaust nozzle 8, injecting water from the grouting nozzle 7, enabling the water to enter the grouting pipe 1 through the grouting guide pipe 2 and flow to the exhaust nozzle through the grout outlet guide pipe 3, and stopping injecting the water after the clean water flows out of the exhaust nozzle.

The above description is only a preferred example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a ground crack department slip casting union coupling structure which characterized in that includes two at least slip casting tubular construction units, every slip casting tubular construction unit includes: comprises a grouting pipe, a grouting guide pipe, a grout outlet guide pipe, a connecting pipe, an auxiliary fixed steel bar and a grouting box; each slip casting pipe both ends have slip casting pipe and the play thick liquid pipe that links to each other with it respectively, every slip casting pipe shaft has the auxiliary fixing reinforcing bar that is no less than 2, be connected through the connecting pipe between slip casting pipe and the slip casting pipe, be connected through the connecting pipe between play thick liquid pipe and the slip casting pipe, adjacent slip casting pipe and play thick liquid pipe are connected with a slip casting box respectively.

2. The structure of claim 1, wherein the connecting pipe is an L-shaped elbow, and one end of the L-shaped elbow is connected with the grouting pipe; the other end of the L-shaped elbow is communicated with a grouting conduit or a grout outlet conduit.

3. A fracture site grout pipe connection configuration of claim 1, wherein said grout box comprises: slip casting mouth, exhaust nozzle, interface box, fixed bolster, the interface box is open-top's hollow box, first half of slip casting mouth and first half of exhaust nozzle are located inside the interface box, the first half of extension interface box bottom and slip casting pipe connection of injection nozzle back half, the first half of exhaust nozzle stretches out the interface box bottom and goes out thick liquid pipe connection, the interface box bottom is equipped with the fixed bolster, the fixed bolster is connected with the structural reinforcement, the interface box top surface flushes with the structure dorsal surface.

4. The structure of claim 1, wherein the grout pipes are full-face grout pipes capable of being grouted repeatedly, two adjacent grout pipes must be overlapped end to end by at least 150mm and have a transverse distance of 30-50mm, and the grout pipes and the grout outlet pipes are plastic hoses.

5. The structure of claim 1, wherein the spacing between adjacent auxiliary fixation bars is no greater than 300 mm.

6. The structure of claim 1, wherein the length of the grout pipe is no greater than 6 m.