Grouting equipment for double-shield TBM construction

Abstract

The utility model relates to the technical field of double-shield TBM grouting, in particular to grouting equipment for double-shield TBM construction. Comprising a stirring and grouting mechanism, a raw material storage mechanism and a raw material conveying mechanism arranged between the stirring and grouting mechanism and the raw material storage mechanism. The stirring and grouting mechanism comprises a stirring tank, a slurry storage tank connected with the stirring tank and two conveying assemblies connected with the slurry storage tank. The raw material storage mechanism comprises a dry powder bin and a horizontal spiral conveyor connected with the dry powder bin. The raw material storage mechanism can be transported to the outside of the shield through the hoisting transportation mechanism to add powder, the powder is transported back to the shield to stir slurry after being added, stirring and grouting can be carried out at the same time by arranging the two dry powder bins and the slurry storage tank, the dry powder bin on one side is transported to the stirring tank through the raw material conveying mechanism, and after stirring is completed, the slurry is conveyed to the slurry storage tank through the slurry storage tank. And the dry powder in the other dry powder bin continues to be conveyed to the stirring tank to be stirred, and the conveying pumps on the two sides can conduct grouting on the shield from the two sides, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-shield TBM grouting, in particular to a grouting device used for double-shield TBM construction. Background Art

[0002] After the shield segments are assembled, a small gap remains between the outer surface of the segments and the soil. This gap is filled with back-grouting to prevent both the segments and the soil from settling. If the tunnel passes through a water-rich quicksand layer or an alluvial layer with abundant groundwater and high seepage pressure, substandard back-grouting can compromise the waterproofing of the lining structure, causing cracks at construction joints or relatively weak areas that can lead to water seepage, impacting the tunnel's service quality and lifespan.

[0003] Due to the small space inside the shield segment, the transportation of raw materials is extremely inconvenient. The raw materials need to be transported manually to the inside of the shield segment, mixed evenly and then grouting is performed, resulting in low construction efficiency. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a grouting device for double-shield TBM construction to solve the problems involved in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a grouting device for double-shield TBM construction, comprising a stirring grouting mechanism, a raw material storage mechanism, and a raw material conveying mechanism disposed between the stirring grouting mechanism and the raw material storage mechanism;

[0006] The stirring grouting mechanism includes a stirring tank, a slurry storage tank connected to the stirring tank, and two sets of conveying components connected to the slurry storage tank;

[0007] The raw material storage mechanism includes a dry powder bin and a horizontal screw conveyor connected to the dry powder bin;

[0008] The raw material conveying mechanism is an inclined screw conveyor, the feed port of the inclined screw conveyor is connected to the raw material storage mechanism, and the discharge port is connected to the stirring tank.

[0009] Furthermore, a stirring motor is provided on one side of the stirring tank, and a stirring rod is connected to the stirring motor, and the stirring rod is provided inside the stirring tank;

[0010] The delivery component is a delivery pump, and a slurry outlet is provided on the delivery pump.

[0011] Furthermore, the raw material storage mechanism is provided with two dry powder bins, and the outlets at the lower ends of the two dry powder bins are connected to the horizontal screw conveyor;

[0012] The discharge port of the horizontal screw conveyor is connected to the inclined screw conveyor.

[0013] Furthermore, it also includes a hoisting and transporting mechanism arranged on the top of the inner side of the pipe wall, and the hoisting and transporting mechanism is used to transport the raw material storage mechanism in the pipeline.

[0014] Furthermore, the hoisting and transporting mechanism includes a hoisting rail arranged on the top inner side of the pipeline, a crane arranged on the hoisting rail, and a hook arranged on the crane.

[0015] Furthermore, both sides of the raw material storage mechanism are provided with hanging rings, and the hooks are connected to the hanging rings.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The raw material storage mechanism of the utility model can be transported to the outside of the shield by the hoisting and transporting mechanism for adding powder, and then transported back to the shield for slurry mixing after the addition is completed. By setting up two dry powder silos and a slurry storage tank, mixing and grouting can be carried out simultaneously. The dry powder silo on one side is transported to the mixing tank through the raw material conveying mechanism, and after the mixing is completed, it is placed in the slurry storage tank. The dry powder in the other dry powder silo continues to be transported to the mixing tank for mixing. The conveying pumps on both sides can grout the shield from both sides, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of Example 1 of the utility model;

[0019] In the picture:

[0020] Mixing tank 1, slurry storage tank 2, mixing motor 3, conveying pump 4, dry powder silo 5, horizontal screw conveyor 6, inclined screw conveyor 7, hanging rail 8, crane 9, hook 10, lifting ring 11, lifting rope 12. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Example 1:

[0023] Depend on Figure 1 As shown, a grouting device for double-shield TBM construction includes a stirring grouting mechanism, a raw material storage mechanism, and a raw material conveying mechanism provided between the stirring grouting mechanism and the raw material storage mechanism;

[0024] The stirring grouting mechanism includes a stirring tank 1, a slurry storage tank 2 connected to the stirring tank 1, and two groups of conveying components connected to the slurry storage tank 2; a stirring motor 3 is provided on one side of the stirring tank 1, and a reducer is provided on the stirring motor 3. A stirring rod is connected to the stirring motor 3, and the stirring rod is provided inside the stirring tank 1; the conveying component is a delivery pump 4, and a slurry outlet is provided on the delivery pump 4. The delivery pump 4 is provided with two groups for grouting from both sides at the same time. By providing the slurry storage tank 2, stirring and grouting can be carried out simultaneously. The dry powder bin 5 on one side is transported to the stirring tank 1 through the raw material conveying mechanism. After the stirring is completed, it is placed in the slurry storage tank 2. The dry powder in the other dry powder bin 5 continues to be transported to the stirring tank 1 for stirring. The delivery pumps 4 on both sides can grout the shield from both sides, thereby improving work efficiency.

[0025] The raw material storage mechanism includes a dry powder bin 5 and a horizontal screw conveyor 6 connected to the dry powder bin 5. The raw material storage mechanism is provided with two dry powder bins 5, and the outlets of the two dry powder bins 5 are both connected to the horizontal screw conveyor 6. The discharge port of the horizontal screw conveyor 6 is connected to the angled screw conveyor 7. The raw material storage mechanism can be transported to the outside of the shield by a hoisting transport mechanism for adding powder, and then transported back to the shield for slurry mixing.

[0026] The raw material conveying mechanism is an angled screw conveyor 7 , the feed port of the angled screw conveyor 7 is connected to the raw material storage mechanism, and the discharge port is connected to the stirring tank 1 .

[0027] The pipeline also includes a lifting and transporting mechanism located at the top of the inner side of the pipe wall. The lifting and transporting mechanism is used to transport the raw material storage mechanism within the pipeline. The lifting and transporting mechanism includes a lifting rail 8 located at the top of the inner side of the pipe, a crane 9 mounted on the lifting rail 8, and a lifting rope 12 mounted on the crane 9. The lifting rope 12 is provided with a hook 10. Lifting rings 11 are provided on both sides of the raw material storage mechanism, and the hooks 10 are connected to the lifting rings 11.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grouting device for double-shield TBM construction, characterized by: It includes a stirring and grouting mechanism, a raw material storage mechanism, and a raw material conveying mechanism arranged between the stirring and grouting mechanism and the raw material storage mechanism; The stirring grouting mechanism includes a stirring tank, a slurry storage tank connected to the stirring tank, and two sets of conveying components connected to the slurry storage tank; The raw material storage mechanism includes a dry powder bin and a horizontal screw conveyor connected to the dry powder bin; The raw material conveying mechanism is an inclined screw conveyor, the feed port of the inclined screw conveyor is connected to the raw material storage mechanism, and the discharge port is connected to the stirring tank.

2. The grouting equipment for double-shield TBM construction according to claim 1, characterized in that: A stirring motor is provided on one side of the stirring tank, and a stirring rod is connected to the stirring motor, and the stirring rod is provided inside the stirring tank; The delivery component is a delivery pump, and a slurry outlet is provided on the delivery pump.

3. The grouting equipment for double-shield TBM construction according to claim 1, characterized in that: The raw material storage mechanism is provided with two dry powder bins, and the outlets at the lower ends of the two dry powder bins are connected to the horizontal screw conveyor; The discharge port of the horizontal screw conveyor is connected to the inclined screw conveyor.

4. The grouting equipment for double-shield TBM construction according to claim 1, characterized in that: It also includes a hoisting and transporting mechanism arranged on the top of the inner side of the pipe wall, and the hoisting and transporting mechanism is used to transport the raw material storage mechanism in the pipeline.

5. The grouting equipment for double-shield TBM construction according to claim 4, characterized in that: The hoisting and transporting mechanism comprises a hoisting rail arranged on the top of the inner side of the pipeline, a crane arranged on the hoisting rail, and a hook arranged on the crane.

6. The grouting equipment for double-shield TBM construction according to claim 5, characterized in that: Both sides of the raw material storage mechanism are provided with hanging rings, and the hanging hooks are connected to the hanging rings.

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