CN213268227U - Inspection well grouting system - Google Patents

Abstract

The utility model discloses an inspection shaft slip casting system, including inspection shaft, drain pipe and slip casting subassembly, the slip casting subassembly includes the slip casting pipe and send the thick liquid pipe, the slip casting subassembly attach to the inspection shaft, the slip casting pipe is established the inspection shaft with the linking department of drain pipe, the slip casting pipe is cyclic annularly, the slip casting pipe suit in the drain pipe outside, be equipped with the slip casting hole on the slip casting pipe, send the slip casting pipe with the slip casting union coupling, send the thick liquid pipe to have the mouth of pipe with external intercommunication. Set up the attached to formula slip casting pipe and send the thick liquid pipe at newly-built inspection shaft lateral wall, to examine well construction completion, the drain pipe backfill completion back, through to the inspection shaft slip casting, make inspection shaft and drain pipe linking department form annular cement and reinforce soil, avoid causing soil erosion and water loss, and then arouse the road surface to collapse because of the seepage, guarantee pedestrian and vehicle safety maintain city safety.

Description

Inspection well grouting system

Technical Field

The utility model is used for the drainage engineering field especially relates to an inspection shaft slip casting system.

Background

The inspection well is arranged for convenient maintenance and installation of facilities such as drainage, pollution discharge and the like of urban underground infrastructure. It is usually installed at the intersection of pipelines, turning, where the pipe diameter or slope changes, and at certain intervals on straight pipeline sections, and is convenient for regular inspection of the attached structures.

The joint of the conventional inspection well and the drainage pipeline is easy to leak under the action of external force. When setting up in the fine sand soil layer, the peripheral fine sand of inspection shaft is taken away gradually to the water that oozes, causes the road surface around the inspection shaft to collapse, endangers driving safety or pedestrian's safety.

The maintenance and reinforcement of the existing inspection well usually needs to excavate the road surface, which affects the traffic and the drainage, and the repair process is complex and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide an inspection shaft grouting system, can avoid collapsing because of the road surface that the peripheral seepage of inspection shaft arouses, guarantee pedestrian and vehicle safety maintain city safety.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an inspection shaft slip casting system, includes inspection shaft, drain pipe and slip casting subassembly, the slip casting subassembly includes slip casting pipe and send the thick liquid pipe, the slip casting subassembly attach to the inspection shaft, the slip casting pipe is established the inspection shaft with the linking department of drain pipe, the slip casting pipe is cyclic annular, slip casting pipe suit in the drain pipe outside, be equipped with the slip casting hole on the slip casting pipe, send the thick liquid pipe with the slip casting union coupling, send the thick liquid pipe to have the mouth of pipe with external intercommunication.

In some embodiments, the grouting pipe is in a closed circular ring shape, a grout inlet is formed in the top of the grouting pipe, and the grout feeding pipe is connected with the grout inlet.

In some embodiments, a plurality of groups of grouting holes are arranged along the circumference of the grouting pipe.

In some embodiments, each set of the grout holes has a plurality of grout holes, and the plurality of grout holes of each set of the grout holes are located on a surface of the grout tube that is back to the manhole.

In some embodiments, the plurality of grouting holes of each group of grouting holes are all located on the same cross section of the grouting pipe, and the included angle between two adjacent grouting holes of each group of grouting holes is 90-120 degrees.

In some embodiments, a raised interface tube is arranged at the top of the grouting tube, the interface tube forms the grout inlet, and the grout feeding tube is sleeved with the interface tube and bonded by glue.

In some embodiments, the slurry conveying pipe extends along the depth direction of the inspection well, and the slurry conveying pipe is fixed on the outer side well wall of the inspection well through a pipe clamp.

In some embodiments, the grouting pipe and the slurry conveying pipe are both made of polyvinyl chloride resin pipes.

One of the above technical solutions has at least one of the following advantages or beneficial effects: set up the attached to formula slip casting pipe and send the thick liquid pipe at newly-built inspection shaft lateral wall, to examine well construction completion, the drain pipe backfill completion back, through to the inspection shaft slip casting, make inspection shaft and drain pipe linking department form annular cement and reinforce soil, avoid causing soil erosion and water loss, and then arouse the road surface to collapse because of the seepage, guarantee pedestrian and vehicle safety maintain city safety.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a grouting pipe arrangement according to an embodiment of the present invention;

FIG. 2 is a schematic view of the construction of the grout pipe of one embodiment shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of a grout pipe having two grout holes per set of grout holes;

FIG. 4 is a schematic cross-sectional view of a grout pipe having three grout holes per set of grout holes;

FIG. 5 is a schematic view of the structure of the grouting pipe and the grout pipe of FIG. 1 after connection;

FIG. 6 is a schematic illustration of the reinforcement range of the grout pipe of one embodiment shown in FIG. 1.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise explicitly defined, the terms "set", "install", "connect", and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

In a first aspect, see fig. 1, the embodiment of the utility model provides an inspection shaft grouting system, including inspection shaft 1, drain pipe 2 and slip casting subassembly, drain pipe 2 slip casting subassembly includes slip casting pipe 3 and send thick liquid pipe 4, and the slip casting subassembly is attached to inspection shaft 1, and slip casting pipe 3 establishes in the junction of inspection shaft 1 and drain pipe 2, and slip casting pipe 3 is cyclic annular, and slip casting pipe 3 suit is in the drain pipe 2 outside, is equipped with slip casting hole 31 on the slip casting pipe 3, send thick liquid pipe 4 and be connected with slip casting pipe 3, send thick liquid pipe 4 to have the mouth of pipe 41 with external intercommunication. The grouting assembly is installed when the inspection well 1 is built or assembled, and grouting construction can be performed after the inspection well 1 and the drain pipe 2 are backfilled and compacted. The slurry feeding pipe 4 is used for feeding the slurry into the slurry injecting pipe 3 through the pipe orifice 41, and the slurry injecting pipe 3 is used for injecting the slurry into the joint of the inspection well 1 and the water discharging pipe 2.

The embodiment of the utility model discloses a set up attached to formula slip casting pipe 3 and send thick liquid pipe 4 at newly-built 1 lateral walls of inspection shaft, wait that 1 construction of inspection shaft is accomplished, drain pipe 2 backfills and accomplishes the back, through to 1 slip casting of inspection shaft, refer to fig. 6, make inspection shaft 1 and drain pipe 2 linking department form annular cement and add soil, avoid causing soil erosion and water loss, and then arouse the road surface to collapse because of the seepage, guarantee pedestrian and vehicle safety maintain city safety.

Wherein, the grouting pipe 3 and the slurry conveying pipe 4 can adopt plastic pipes or metal pipes, the pressure bearing capacity is not less than 1.0Mpa, for example, in some embodiments, the grouting pipe 3 and the slurry conveying pipe 4 both adopt polyvinyl chloride resin materials, the cost is lower, the corrosion resistance is higher, and the service life is longer. The pipe diameters of the grouting pipe 3 and the slurry conveying pipe 4 are the same or different.

The grouting pipe 3 is matched with the drain pipe 2 in shape, for example, in some embodiments, referring to fig. 1, 2 and 5, the grouting pipe 3 is in a closed circular ring shape, the grouting pipe 3 is sleeved outside the water inlet pipe, a certain interval is left between the grouting pipe 3 and the drain pipe 2, and the grouting pipe 3 is attached to the outer wall of the inspection well 1. The top position of slip casting pipe 3 is equipped with into thick liquid mouth, and send thick liquid pipe 4 to be connected with into thick liquid mouth, and grouting material is introduced by sending thick liquid pipe 4, gets into slip casting pipe 3 through advancing thick liquid mouth, send thick liquid pipe 4 to be connected in the top of slip casting pipe 3, more is favorable to slip casting material to flow in slip casting pipe 3, discharges through slip casting hole 31 at last to consolidate inspection shaft 1 and drain pipe 2 junction.

Referring to fig. 2 and 5, a plurality of groups of grouting holes 31 are arranged along the circumferential direction of the grouting pipe 3, for example, in some embodiments, a group of grouting holes 31 is arranged every 20-30 cm along the circumferential direction of the grouting pipe 3, the diameter of each grouting hole 31 is about 5mm, and the plurality of groups of grouting holes 31 are symmetrically distributed to ensure that the grouting on the periphery of the drain pipe 2 is uniform.

Further, referring to fig. 3 and 4, the grouting pipes 3 are attached to the outer wall of the inspection well 1, each group of grouting holes 31 has a plurality of grouting holes 31, each group of grouting holes 31 is circular, rectangular or in any other shape, and the plurality of grouting holes 31 of each group of grouting holes 31 are located on the surface of the grouting pipe 3, which is back to the inspection well 1. The plurality of grouting holes 31 of each group of grouting holes 31 are all positioned on the same cross section of the grouting pipe 3, and the included angle between two adjacent grouting holes 31 of each group of grouting holes 31 is 90-120 degrees. Every group grouting hole 31 can carry out the slip casting to a plurality of directions of keeping away from inspection shaft 1, avoids causing the influence to inspection shaft 1's structure, and the influence scope of a plurality of grouting holes 31 slip casting is bigger, can guarantee that inspection shaft 1 and drain pipe 2 link up the department and form complete annular cement and add soil.

Referring to fig. 2 and 5, in some embodiments, a raised mouthpiece 32 is provided at the top of the grouting pipe 3, the mouthpiece 32 forms a grout inlet, and the grout feeding pipe 4 is sleeved with the mouthpiece 32 and bonded by glue. The connection mode of sleeving and bonding by combining glue is more rapid in connection process, and is more suitable for construction operation conditions of the inspection well 1.

Referring to fig. 1 and 5, the slurry feeding pipe 4 extends along the depth direction of the inspection well 1, the slurry feeding pipe 4 is fixed on the outer side well wall of the inspection well 1 through a pipe clamp 42, and the slurry feeding pipe 4 is attached to the well wall of the inspection well 1, so that accidents such as inclination and blockage of the slurry feeding pipe 4 during backfilling are avoided, and the using amount of pipes is saved.

In a second aspect, referring to fig. 1 and 6, an embodiment of the present invention provides a grouting method for an inspection well 1, which is suitable for building the inspection well 1 on site, and includes the following steps:

sleeving an annular grouting pipe 3 into a drain pipe 2, building an inspection well 1, and butting the drain pipe 2 with the inspection well 1, wherein grouting holes 31 are formed in the grouting pipe 3 at certain intervals;

installing a slurry conveying pipe 4 along the depth direction of the inspection well 1, connecting the slurry conveying pipe 4 with the grouting pipe 3, and leading the top of the slurry conveying pipe 4 out of the ground;

backfilling earthwork above the drainage pipe 2 and around the inspection well 1, and backfilling and compacting in layers;

utilize send thick liquid pipe 4 and slip casting pipe 3 to carry out the slip casting to inspection shaft 1 and drain pipe 2's linking department, consolidate drain pipe 2 and the peripheral soil body of inspection shaft 1, form annular solidification soil body at drain pipe 2 periphery.

In a third aspect, referring to fig. 1 and 6, a grouting method for an inspection well 1 is suitable for prefabricating the assembled inspection well 1, and comprises the following steps:

preassembling an annular grouting pipe 3 in an assembled inspection well 1, assembling the inspection well 1, and butting a drain pipe 2 with the inspection well 1 by penetrating the grouting pipe 3, wherein grouting holes 31 are formed in the grouting pipe 3 at certain intervals;

installing a slurry conveying pipe 4 along the depth direction of the inspection well 1, connecting the slurry conveying pipe 4 with the grouting pipe 3, and leading the top of the slurry conveying pipe 4 out of the ground;

backfilling earthwork above the drainage pipe 2 and around the inspection well 1, and backfilling and compacting in layers;

utilize send thick liquid pipe 4 and slip casting pipe 3 to carry out the slip casting to inspection shaft 1 and drain pipe 2's linking department, consolidate drain pipe 2 and the peripheral soil body of inspection shaft 1, form annular solidification soil body at drain pipe 2 periphery.

Wherein, the grouting material adopts cement or cement plus water glass, and when the ground water permeability is good, the grouting of cement plus water glass is preferably adopted. The 28-day compressive strength grade of the slurry is not lower than 30 MPa. The grouting pressure is preferably controlled to be 0.2-0.5 MPa, and is not more than 0.5 MPa. The grouting adopts one-time grouting or multiple times of grouting. The first grouting can be adopted when the permeability is good, and the second grouting can be adopted when the permeability is poor

In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims (8)

1. The utility model provides an inspection shaft slip casting system, its characterized in that includes inspection shaft, drain pipe and slip casting subassembly, the slip casting subassembly includes slip casting pipe and send the thick liquid pipe, the slip casting subassembly attach to the inspection shaft, the slip casting pipe is established the inspection shaft with the linking department of drain pipe, the slip casting pipe is cyclic annular, slip casting pipe suit in the drain pipe outside, be equipped with the slip casting hole on the slip casting pipe, send the thick liquid pipe with the slip casting union coupling, send the thick liquid pipe to have the mouth of pipe with external intercommunication.

2. The inspection well grouting system according to claim 1, wherein the grouting pipe is in a closed circular ring shape, a grout inlet is formed in the top of the grouting pipe, and the grout conveying pipe is connected with the grout inlet.

3. The manhole grouting system according to claim 2, wherein a plurality of sets of grouting holes are provided along a circumferential direction of the grouting pipe.

4. The manhole grouting system according to claim 3, wherein each group of the grouting holes has a plurality of grouting holes, and the plurality of grouting holes of each group of the grouting holes are located on the surface of the grouting pipe which is back to the manhole.

5. The inspection well grouting system according to claim 4, wherein a plurality of grouting holes of each group of grouting holes are all located on the same cross section of the grouting pipe, and the included angle between two adjacent grouting holes of each group of grouting holes is 90-120 degrees.

6. The inspection well grouting system according to claim 2, wherein a raised interface tube is arranged at the top of the grouting tube, the interface tube forms the grout inlet, and the grout feeding tube is sleeved with the interface tube and is bonded by glue.

7. The manhole grouting system according to claim 1, wherein the slurry conveying pipe extends along the depth direction of the manhole, and the slurry conveying pipe is fixed on the outer side wall of the manhole through a pipe clamp.

8. The manhole grouting system according to claim 1, wherein the grouting pipe and the slurry sending pipe are both made of polyvinyl chloride resin pipes.

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