CN109778901B

CN109778901B - Grouting connection structure based on combined box transformer substation foundation and grouting method thereof

Info

Publication number: CN109778901B
Application number: CN201910198342.1A
Authority: CN
Inventors: 弓连旺; 孙以伶; 吕向东
Original assignee: Inner Mongolia Liyuan Pipe Culvert Engineering LLC
Current assignee: Inner Mongolia Liyuan Pipe Culvert Engineering LLC
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2021-02-26
Anticipated expiration: 2039-03-15
Also published as: CN109778901A

Abstract

The invention discloses a grouting connection structure based on a combined box transformer substation foundation and a grouting method thereof, wherein the structure comprises an upper prefabricated wall body, a connecting sleeve embedded at the lower end of the upper prefabricated wall body, a lower prefabricated wall body arranged at the lower end of the upper prefabricated wall body and a connecting beam embedded at the upper end of the lower prefabricated wall body, the invention also discloses a grouting connection structure based on the combined box transformer substation foundation and a grouting method thereof, and the grouting connection structure comprises the following steps: the method comprises the following steps: preparing materials; step two: assembling; step three: plugging is added; step four: preparing grouting material; step five: grouting; step six: cleaning; according to the invention, the inverted buckle plate and the guide groove are positioned in a sliding fit manner, so that the butt joint installation efficiency of the upper prefabricated wall body and the lower prefabricated wall body is improved, and the building efficiency of the whole box transformer substation foundation is further improved; and through the connection structure of the connecting beam and the connecting sleeve, the shearing resistance of the connecting surface of the upper prefabricated wall body and the lower prefabricated wall body is improved.

Description

Grouting connection structure based on combined box transformer substation foundation and grouting method thereof

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a grouting connection structure based on a combined box transformer substation foundation and a grouting method thereof.

Background

The box transformer is a box-type substation, particularly a high-voltage switch device, a distribution transformer and a low-voltage distribution device, and is a factory-prefabricated indoor and outdoor compact distribution device which is integrated according to a certain wiring scheme, namely, the functions of transformer voltage reduction, low-voltage distribution and the like are organically combined together and installed on a moistureproof, antirust, dustproof, ratproof, fireproof, antitheft, heat-insulation, totally-enclosed and movable steel structure box, so that the box transformer is particularly suitable for urban network construction and transformation, and is a brand-new substation rising after a civil transformer substation.

The box transformer substation foundation is a building foundation for installing the box transformer substation, the box transformer substation foundation provides good support for the installation of the box transformer substation and provides a proper channel for drainage and wire arrangement of the box transformer substation, the combined box transformer substation foundation is formed by combining and butting an upper prefabricated wall body and a lower prefabricated wall body, the butting mode is generally sleeve type grouting connection, the modular production and assembly of the box transformer substation and the foundation are realized by the building mode, the building efficiency of the box transformer substation foundation is improved, but the connection structure is relatively dispersed at the connection surface of the upper prefabricated wall body and the lower prefabricated wall body, the butting difficulty of the upper prefabricated wall body and the lower prefabricated wall body is increased, the connection piece at the upper end of the lower prefabricated wall body is easily bent and deformed when the butting is not in time, and the unilateral shear resistance of the pipe type connection at the connection surface of the upper prefabricated wall body.

Disclosure of Invention

The invention aims to provide a grouting connection structure based on a combined box-type substation foundation and a grouting method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a grouting connection structure based on a combined box transformer base comprises an upper prefabricated wall body, a connecting sleeve embedded at the lower end of the upper prefabricated wall body, a lower prefabricated wall body arranged at the lower end of the upper prefabricated wall body and a connecting beam embedded at the upper end of the lower prefabricated wall body, wherein the lower end of the connecting beam is a bottom plate with a plate structure, a vertical plate with a plate structure is vertically connected in the middle of the bottom plate, reverse buckle plates with barb type long strip structures are symmetrically arranged on the left side and the right side of the upper end of the vertical plate, buckle grooves with groove body structures are formed on the reverse buckle plates and the two side surfaces of the vertical plate, grout passing holes with cylindrical hole structures are uniformly distributed at the bottoms of the buckle grooves, the main body of the connecting sleeve is a clamping sleeve with an arch sleeve structure, a guide groove with a U-shaped groove body structure in sliding fit with the reverse buckle plates is arranged in the middle of the clamping sleeve, filling grooves with long groove structure are arranged on the wall bodies of the filling grooves, and a grouting pipe and a grout outlet pipe with tubular structures are led from the bottom of the filling groove to the outer wall of the clamping sleeve;

the filling grooves are arranged on the wall body of the guide groove in an upper layer, a middle layer and a lower layer, the filling grooves on the upper layer are communicated with the grout outlet pipe, the filling grooves on the lower layer are communicated with the grouting pipe, and the end parts of the grouting pipe and the grout outlet pipe are inserted with plugs of cylindrical structures.

Preferably, the bottom plate is embedded with the lower end of the vertical plate and the upper end of the lower prefabricated wall body, the connecting sleeve is completely embedded with the lower end of the upper prefabricated wall body, and the lower end face of the clamping sleeve is flush with the lower end face of the upper prefabricated wall body.

A grouting method of a grouting connection structure based on a combined box-type substation foundation comprises the following steps:

the method comprises the following steps: preparing materials, preparing grouting raw materials for grouting and grouting equipment for grouting, and cleaning the butt joint surface of the upper prefabricated wall body and the lower prefabricated wall body;

step two: assembling, namely hoisting the upper prefabricated wall above the lower prefabricated wall, aligning the guide groove with the inverted buckle plate, inserting and combining the connecting beam with the connecting sleeve, and then supporting and fixing the two sides of the upper prefabricated wall and the lower prefabricated wall by using hydraulic supporting plates;

step three: additionally installing a plug, inserting a plug into the grouting pipe and the grout outlet pipe at the upper end of one side of the upper prefabricated wall body, so that the grouting pipe and the grout outlet pipe at the upper end of one side of the upper prefabricated wall body are plugged, and a coherent cavity is formed between the connecting beam and the connecting sleeve in the upper prefabricated wall body;

step four: preparing a grouting material, namely preparing the prepared grouting material and drinking water according to a specified ratio to prepare the grouting material, wherein in the process of preparing the grouting material, the stirring temperature is controlled to be 5-40 ℃, the stirring time is 1-2min when mechanical stirring is adopted, and the stirring time is 3-4min when manual stirring is adopted;

step five: grouting, pressing grouting material into a cavity formed by the connecting beam and the connecting sleeve from the grouting pipe on the other side of the upper prefabricated wall body by grouting equipment, sealing the grout outlet pipe by using a plug after the grouting material flows out from the grout outlet pipe on the same side, then opening the grouting pipe on the other side of the upper prefabricated wall body and the plug on the grout outlet pipe, continuing grouting, sealing the grouting pipe on the other side by using the plug after the grouting material flows out from the grouting pipe on the other side, continuing grouting, stopping grouting after the grouting material flows out from the grout outlet pipe on the other side, and sealing the grout outlet pipe on the other side by using the plug;

step six: cleaning, namely cleaning slurry adhered to the surfaces of the upper prefabricated wall body and the lower prefabricated wall body, picking up and finishing grouting material and grouting equipment, before the grouting material is completely solidified, not allowing the upper prefabricated wall body and the lower prefabricated wall body to be touched with large force or large amplitude, and removing the hydraulic support plates on two sides of the upper prefabricated wall body and the lower prefabricated wall body after the grouting material is completely solidified.

Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:

1. when the upper prefabricated wall body is butted with the lower prefabricated wall body, the inverted buckle plate and the guide groove are in sliding fit positioning, so that the butting difficulty of the upper prefabricated wall body and the lower prefabricated wall body is reduced, and the butting installation efficiency of the upper prefabricated wall body and the lower prefabricated wall body is improved;

2. the connection structure of tie-beam and adapter sleeve for go up prefabricated wall body and can form strong enough ability of shearing with the connection face department of prefabricated wall body down at last prefabricated wall body after finishing grout to be connected with prefabricated wall body down, and this kind of sectional type grout mode, great reduction the grout time, improved the efficiency that grout is connected.

Drawings

FIG. 1 is an exploded view of the axial side structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A in FIG. 2;

FIG. 4 is an enlarged view of a portion of the structure at B in FIG. 3;

FIG. 5 is a side view of the coupling beam axle;

fig. 6 is a side structural view of the connecting sleeve.

In the figure: 1. upper prefabricating a wall body; 2. a lower prefabricated wall body; 3. a connecting beam; 4. connecting sleeves; 301. a base plate; 302. a vertical plate; 303. a reverse buckle plate; 304. slurry passing holes; 305. buckling grooves; 401. a card sleeve; 402. a guide groove; 403. filling the groove; 404. a slurry passing groove; 405. a grouting pipe; 406. a pulp outlet pipe; 407. and (7) a plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a technical solution: a grouting connection structure based on a combined box transformer base comprises an upper prefabricated wall body 1, a connecting sleeve 4 embedded at the lower end of the upper prefabricated wall body 1, a lower prefabricated wall body 2 arranged at the lower end of the upper prefabricated wall body 1 and a connecting beam 3 embedded at the upper end of the lower prefabricated wall body 2, the lower end of the connecting beam 3 is a bottom plate 301 with a plate-shaped structure, the middle of the bottom plate 301 is vertically connected with a vertical plate 302 with a plate-shaped structure, inverted buckle plates 303 with barb type long strip-shaped structures are symmetrically arranged at the left side and the right side of the upper end of the vertical plate 302, buckle grooves 305 with groove body structures are formed on the inverted buckle plates 303 and the two side surfaces of the vertical plate 302, slurry passing holes 304 with cylindrical hole-shaped structures are uniformly distributed at the groove bottoms of the buckle grooves 305, the main body of the connecting sleeve 4 is a clamping sleeve 401 with an arch sleeve-shaped structure, a guide groove 402 with a U-shaped groove body structure in sliding fit with the inverted buckle plates 303, the trough bodies of the filling troughs 403 are communicated with each other through the slurry passing trough 404 of the trough body structure, and the grouting pipe 405 and the slurry outlet pipe 406 of the tubular structure are led from the trough bottom of the filling trough 403 to the outer wall of the clamping sleeve 401, wherein when the connecting beam 3 is inserted into the connecting sleeve 4, the inverted buckle plates 303 on two sides of the upper end of the connecting beam 3 are led in along the inner wall of the guide groove 402, so that the butt joint accuracy of the upper prefabricated wall body 1 and the lower prefabricated wall body 2 is ensured, and meanwhile, the structure of the connecting beam 3 enables the connecting surface of the upper prefabricated wall body 1 and the lower prefabricated wall body 2 to have stronger shear resistance.

The filling grooves 403 are arranged in an upper layer, a middle layer and a lower layer on the wall body of the guide groove 402, the filling groove 403 on the upper layer is communicated with the grout outlet pipe 406, the filling groove 403 on the lower layer is communicated with the grouting pipe 405, the end parts of the grouting pipe 405 and the grout outlet pipe 406 are inserted with a plug 407 with a cylindrical structure, and a cavity communicated with the grouting pipe 405 or the grout outlet pipe 406 forms a relatively closed cavity through the plug 407, so that the grouting compactness is ensured.

Further, bottom plate 301 is in embedded fit with the lower extreme of riser 302 and the upper end homogeneous phase of prefabricated wall body 2 down, and this kind of structure has guaranteed that prefabricated wall body 1 installs the stability of location under on prefabricated wall body 2, and adapter sleeve 4 is in complete embedded fit at the lower extreme of last prefabricated wall body 1, and the lower terminal surface of cutting ferrule 401 is parallel and level with the lower terminal surface of last prefabricated wall body 1 mutually.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a grout connection structure based on combination formula case becomes basis, this structure includes prefabricated wall body (1), goes up prefabricated wall body (1) lower extreme and inlays adapter sleeve (4) of joining in marriage, goes up prefabricated wall body (2) and the tie-beam (3) that the prefabricated wall body (2) upper end was inlayed and is joined in marriage down that prefabricated wall body (1) lower extreme was established, its characterized in that: the lower end of the connecting beam (3) is a bottom plate (301) with a plate-shaped structure, the middle of the bottom plate (301) is vertically connected with a vertical plate (302) with a plate-shaped structure, inverted buckle plates (303) with barb-shaped long strip-shaped structures are symmetrically arranged on the left side and the right side of the upper end of the vertical plate (302), buckling grooves (305) with groove body structures are formed on the two side faces of the inverted buckle plates (303) and pulp passing holes (304) with cylindrical hole-shaped structures are uniformly distributed at the groove bottoms of the buckling grooves (305), the main body of the connecting sleeve (4) is a clamping sleeve (401) with an arch sleeve-shaped structure, a guide groove (402) with a U-shaped groove body structure and matched with the inverted buckle plates (303) in a sliding manner is arranged in the middle of the clamping sleeve (401), filling grooves (403) with long groove-shaped structures are arranged on the wall bodies of the guide groove (402) from top to bottom, and the, a grouting pipe (405) and a grout outlet pipe (406) with a tubular structure are led from the bottom of the filling groove (403) to the outer wall of the cutting sleeve (401);

the filling grooves (403) are arranged on the wall body of the guide groove (402) in an upper layer, a middle layer and a lower layer, the filling groove (403) on the upper layer is communicated with the grout outlet pipe (406), the filling groove (403) on the lower layer is communicated with the grouting pipe (405), and the end parts of the grouting pipe (405) and the grout outlet pipe (406) are inserted with plugs (407) with cylindrical structures.

2. The grouting connection structure based on the combined box-type substation foundation according to claim 1, characterized in that: the bottom plate (301) is embedded with the lower end of the vertical plate (302) and the upper end of the lower prefabricated wall body (2), the connecting sleeve (4) is completely embedded with the lower end of the upper prefabricated wall body (1), and the lower end face of the clamping sleeve (401) is flush with the lower end face of the upper prefabricated wall body (1).

3. The grouting method of a grouting connection structure based on a combined box-type substation foundation according to any one of claims 1 to 2, characterized in that: the method comprises the following steps: