CN113863470A - Concrete drain pipeline collar joint structure and construction method - Google Patents

Abstract

The invention discloses a concrete drainage pipeline collar interface structure and a construction method, wherein the concrete drainage pipeline collar interface structure comprises a concrete base and a drainage pipeline positioning groove arranged on the concrete base, and two drainage pipelines are embedded into the drainage pipeline positioning groove to be in butt joint; and the high-ductility concrete layer is filled and covers the gap between the two drainage pipelines. The method comprises the following steps of preparing high-ductility concrete in the construction process, then chiseling the outer side of the drainage pipeline, and smearing and pressing the high-ductility concrete in a multilayer mode in a chiseled area. The invention solves the problems of complex construction process, multiple working procedures and high cost caused by the use of a template in the existing concrete drainage pipeline joint construction.

Description

Concrete drain pipeline collar joint structure and construction method

Technical Field

The invention relates to the technical field of concrete pipeline construction, in particular to a concrete drain pipeline collar joint structure and a construction method.

Background

At present, the common method of concrete drainage pipe lantern ring concrete interface construction is for pouring concrete after tying reinforcing steel bars or paving steel wire net or plain concrete according to different pipe diameters, and the work progress is complicated, and the process is more, especially need set up the template for pouring concrete, and the concrete drainage pipe is circular basically, and template processing is more complicated, needs the customization even, and construction cost is high, and the efficiency of construction is low.

Disclosure of Invention

The invention provides a concrete drainage pipeline collar joint structure and a construction method, and solves the problems that the existing concrete drainage pipeline joint construction uses a template, the construction process is complex, the working procedures are multiple, and the cost is high.

In order to achieve the above object, in a first aspect, the present invention provides the following technical solutions: a concrete drain pipe collar interface structure, comprising:

the drainage system comprises a concrete base and drainage pipeline positioning grooves formed in the concrete base, wherein two drainage pipelines are embedded into the drainage pipeline positioning grooves to be in butt joint;

and the high-ductility concrete layer is filled and covers the gap between the two drainage pipelines.

Preferably, the high-ductility concrete layer is internally provided with a steel wire mesh.

Preferably, the steel wire mesh is fixed inside the high-ductility concrete layer by adopting anchoring nails.

Preferably, a cushion block is arranged at the position, provided with the anchoring nail, on the inner side of the steel wire mesh.

In a second aspect, the present application further provides a construction method of the concrete drain pipe collar interface structure according to the first aspect, including the following steps:

s1: respectively metering 30-35 parts by mass of cement, 15-20 parts by mass of fly ash, 10-20 parts by mass of mineral powder, 30-35 parts by mass of steel slag aggregate of 0.5-2m, 0.05-0.20% by mass of water reducing agent, 0.001-0.005% by mass of biogel, 0.03% by mass of defoaming agent, 0.03% by mass of expanding agent and 0.2-0.3 times of water;

s2: placing the ingredients in the step S1 into a stirrer, and stirring to obtain dry powder materials, wherein the stirring time is not less than 5 minutes;

s3: adding water twice into the material obtained in the step S2 and uniformly stirring, wherein the first time is two thirds of the water consumption, the second time is the residual water, and the stirring time is not less than 7 minutes; adding polypropylene fibers with the material amount of 1.0-1.5% in batches according to a set mixing ratio, uniformly stirring for not less than 5 minutes to obtain a high-ductility concrete mixture, and uniformly stirring for not less than 5 minutes to obtain the high-ductility concrete mixture;

s4: after the drainage pipelines are installed and butted, pouring concrete of a concrete base and curing for 5 days after mortar caulking construction of butt joints is finished;

s5: roughening the outer wall of the drainage pipeline within the range of high-ductility concrete to be plastered and pressed to expose aggregate of the drainage pipeline, and cleaning the drainage pipeline by using clear water after removing accumulated slag sundries by using a steel brush in a matching manner;

s6: wetting the area needing to be plastered and pressed with high-ductility concrete and the area 20cm around the area for many times by using clean water, and anchoring a steel wire mesh by adopting a row of anchoring nails for the drainage pipeline with the diameter ranging from 800mm to 3000 mm;

s7: carrying out layered plastering construction on the high-ductility concrete by adopting a plastering tool until the thickness of each layer is not more than 1.5cm, carrying out construction as soon as possible when the previous layer is dried, wherein the time interval between the front layer and the rear layer is not more than 4 hours, the middle layer is not polished, and the last layer of high-ductility concrete is polished and compacted;

s8: and after the construction is finished, carrying out moisture-preserving maintenance for not less than 7 days, and after the maintenance period is over, carrying out the next other procedure construction.

Compared with the prior art, the invention has the beneficial effects that:

adopt this high ductility concrete to wipe and press construction to compare with traditional cast concrete construction, have construction convenience, need not to prop up and establish the template and need not to prop up even and establish the reinforcing bar, accelerated the construction progress at to a great extent and practiced thrift construction cost, construction easy operation, only need wipe and press the shaping can.

Drawings

FIG. 1 is a schematic front view of a first configuration of the present invention;

FIG. 2 is a schematic cross-sectional side view of a first structure of the present invention;

FIG. 3 is a schematic front view of a second configuration of the present invention;

FIG. 4 is a side cross-sectional view of a second structure of the present invention.

Reference numerals:

1. high ductility concrete layer, 2, drainage pipe, 3, indium steel chi, 4, gap, 5, wire net.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the present invention provides an embodiment, as follows:

example 1:

a concrete drain pipe collar interface structure, comprising:

as shown in fig. 1-2, the concrete base 3 and the drainage pipe positioning groove formed in the concrete base 3, the two drainage pipes 2 are embedded into the drainage pipe positioning groove to be butted, the concrete base 3 is used for supporting the drainage pipes 2 to facilitate the butt joint between the two drainage pipes 2, the drainage pipe positioning groove is semicircular, and half of the drainage pipes 2 in the circumferential direction are left vacant.

In order to guarantee the stable connection between two drainage pipe 2, used high ductility concrete layer 1 among the interface structure of this application, high ductility concrete layer 1 fill and cover gap 4 between two drainage pipe 2, particularly, need cover high ductility concrete layer 1's region on the drainage pipe 2 lateral wall and need carry out the chisel hair, expose drainage pipe 2's aggregate, high ductility concrete layer 1 is exactly to fill in the region of chisel hair, and bonding strength is big. The high-ductility concrete is a fiber reinforced composite material based on the design principle of micromechanics and taking cement, quartz sand and the like as matrixes, has high ductility, high damage resistance, high durability, high strength, compression resistance, tensile strength and good crack control capability, and is also called as bendable concrete.

In order to strengthen the strength of the high-ductility concrete layer 1, as shown in fig. 3-4, the drainage pipeline 2 with the diameter of 800mm-3000mm is provided with a steel wire mesh 5 inside the high-ductility concrete layer 1, the steel wire mesh 5 is fixed inside the high-ductility concrete layer 1 by adopting anchoring nails, meanwhile, the position of the anchoring nails on the inner side of the steel wire mesh 5 is provided with a cushion block, and the connecting strength between the drainage pipelines 2 with larger diameters can be ensured by plastering and pressing 1 multi-layer high-ductility concrete layer outside the steel wire mesh 5.

Example 2

The construction method of the concrete drain pipeline collar joint structure according to the embodiment 1 comprises the following steps:

s1: respectively metering 30-35 parts by mass of cement, 15-20 parts by mass of fly ash, 10-20 parts by mass of mineral powder, 30-35 parts by mass of steel slag aggregate of 0.5-2m, 0.05-0.20% by mass of water reducing agent, 0.001-0.005% by mass of biogel, 0.03% by mass of defoaming agent, 0.03% by mass of expanding agent and 0.2-0.3 times of water by mass of material.

S2: and (5) placing the ingredients in the step S1 into a stirrer, and stirring to obtain dry powder materials, wherein the stirring time is not less than 5 minutes.

S3: adding water twice into the material obtained in the step S2, and uniformly stirring, wherein the amount of the water added for the first time is two thirds of the amount of the water added for the second time, the residual water is added for the second time, the stirring efficiency can be improved by adding water twice, and the stirring time is not less than 7 minutes; adding polypropylene fibers with the material amount of 1.0-1.5% in batches according to a set mixing ratio, uniformly stirring, wherein the stirring time is not less than 5 minutes, and obtaining the high-ductility concrete mixture, wherein the polypropylene fibers have a reinforcing effect, have a certain epitaxial property, and prevent the high-ductility concrete from cracking.

S4: and (3) finishing the installation and butt joint of the drainage pipeline 2, pouring concrete on the concrete base 3 after the mortar caulking construction of the butt joint is finished, and curing for 5 days.

S5: and roughening the outer wall of the drainage pipeline 2 within the range of the high-ductility concrete to be plastered, exposing the aggregate of the drainage pipeline 2, and cleaning the drainage pipeline by using clear water after removing accumulated slag sundries by using a steel brush in a matching manner.

S6: the area needing to be plastered and pressed with high-ductility concrete and the area 20cm around the area are wetted by clean water for many times, the steel wire mesh 5 is anchored by adopting a row of anchoring nails when the diameter of the drainage pipeline 2 is in the range of 800-3000 mm, and the steel wire mesh 5 can not be installed on the drainage pipeline with small diameter, so that the step can be omitted.

S7: the high-ductility concrete is subjected to layered plastering construction by adopting a plastering tool until the thickness of each layer is not more than 1.5cm, the later layer of plastering is constructed as soon as possible when the former layer is dried, the time interval between the front layer and the rear layer of plastering is not more than 4 hours, the middle layer is not glazed, and the last layer of high-ductility concrete is glazed and compacted, wherein the glazing of the concrete is the name of the last procedure in decorative plastering, and the process is characterized in that before the concrete is initially set and finally set, the plastering layer has certain strength, the iron trowel is turned sideways for a certain angle so as to reduce the contact surface with the plastering layer to increase the pressure and the surface of the plastering layer is smooth and compact through plastering, and the process of repeatedly rubbing and compacting the surface of the concrete by using the trowel or a plastering machine is realized.

By adopting the multi-layer plastering construction, the high-ductility concrete layer 1 has better ductility and toughness and larger bearing capacity.

S8: and after the construction is finished, carrying out moisture-preserving maintenance for not less than 7 days, and after the maintenance period is over, carrying out the next other procedure construction.

This application adopts this high ductility concrete to wipe and presses construction to compare with traditional cast concrete construction, has construction convenience, need not to prop up and establishes the template and need not to prop up even and establish the reinforcing bar, accelerated the construction progress at to a great extent and practiced thrift construction cost, construction easy operation, only need wipe and press the shaping can.

It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims (5)

1. The utility model provides a concrete drain pipeline lantern ring interface structure which characterized in that includes:

the concrete base (3) and a drainage pipeline positioning groove arranged on the concrete base (3), and the two drainage pipelines (2) are embedded into the drainage pipeline positioning groove to be in butt joint;

and the high-ductility concrete layer (1) is filled and covers a gap (4) between the two drainage pipelines (2).

2. The concrete drain pipe collar interface structure of claim 1, wherein: and a steel wire mesh (5) is arranged inside the high-ductility concrete layer (1).

3. The concrete drain pipe collar interface structure of claim 2, wherein: the steel wire mesh (5) is fixed inside the high-ductility concrete layer (1) by adopting anchoring nails.

4. The concrete drain pipe collar interface structure of claim 2, wherein: and cushion blocks are arranged at the positions, provided with the anchoring nails, of the inner sides of the steel wire meshes (5).

5. A construction method of a concrete drain pipe collar interface structure according to any one of claims 1 to 3, comprising the steps of:

s1: respectively metering 30-35 parts by mass of cement, 15-20 parts by mass of fly ash, 10-20 parts by mass of mineral powder, 30-35 parts by mass of steel slag aggregate of 0.5-2m, 0.05-0.20% by mass of water reducing agent, 0.001-0.005% by mass of biogel, 0.03% by mass of defoaming agent, 0.03% by mass of expanding agent and 0.2-0.3 times of water;

s2: placing the ingredients in the step S1 into a stirrer, and stirring to obtain dry powder materials, wherein the stirring time is not less than 5 minutes;

s3: adding water twice into the material obtained in the step S2 and uniformly stirring, wherein the first time is two thirds of the water consumption, the second time is the residual water, and the stirring time is not less than 7 minutes; adding polypropylene fibers with the material amount of 1.0-1.5% in batches according to a set mixing ratio, and uniformly stirring for not less than 5 minutes to obtain a high-ductility concrete mixture;

s4: after the drainage pipeline (2) is installed and butted, and after the mortar caulking construction of the butt joint is finished, concrete of the concrete base (3) is poured and maintained for 5 days;

s5: roughening the outer wall of the drainage pipeline (2) within the range of high-ductility concrete to be plastered to expose the aggregate of the drainage pipeline (2), and cleaning the drainage pipeline with clear water after removing accumulated slag impurities by using a steel brush in a matching manner;

s6: wetting the area needing to be plastered and pressed with high-ductility concrete and the area 20cm around the area for many times by using clean water, and anchoring a steel wire mesh (5) by adopting a row of anchoring nails when the diameter of the drainage pipeline (2) is within the range of 800-3000 mm;

s7: carrying out layered plastering construction on the high-ductility concrete by adopting a plastering tool until the thickness of each layer is not more than 1.5cm, carrying out construction as soon as possible when the previous layer is dried, wherein the time interval between the front layer and the rear layer is not more than 4 hours, the middle layer is not polished, and the last layer of high-ductility concrete is polished and compacted;

s8: and after the construction is finished, carrying out moisture-preserving maintenance for not less than 7 days, and after the maintenance period is over, carrying out the next other procedure construction.

Images