阅读说明：本技术 一种搅拌式水下补裂防渗装置及其施工方法 (Stirring type underwater crack repairing and seepage preventing device and construction method thereof ) 是由 李平 陶俊 葛菲 吕亚茹 陈育民 戴元志 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种搅拌式水下补裂防渗装置,包括搅动轴和支撑杆；搅动轴水平地设于支撑杆的底部,并由电机驱动转动；搅动轴为中空轴,轴壁设有若干喷浆孔,且外壁设有若干用于固定若干搅拌叶片的环状凸起；搅动轴的一端闭合,另一端通过止推轴承接水泥浆泵送管。其采用泵送水泥浆与水底的粘土拌合的方式制备修补材料,旋转叶片可采用内向、外向、交错等安装形式,使水泥浆与土体的拌合物向内聚合,向两边分散或平整分布。解决了水下裂缝渗漏的修补难题,工程量小,操作简单,不用操作人员潜水修补裂缝,提高了操作人员的施工安全性；适用于水库、湖泊、河道、老旧池塘、尾库矿等一系列水下渗漏修补,具有很强的实用性和广泛的适用性。(The invention discloses a stirring type underwater crack repairing and seepage preventing device which comprises a stirring shaft and a supporting rod, wherein the stirring shaft is arranged on the supporting rod; the stirring shaft is horizontally arranged at the bottom of the supporting rod and is driven by the motor to rotate; the stirring shaft is a hollow shaft, the wall of the shaft is provided with a plurality of guniting holes, and the outer wall of the shaft is provided with a plurality of annular bulges used for fixing a plurality of stirring blades; one end of the stirring shaft is closed, and the other end of the stirring shaft is connected with a cement slurry pumping pipe through a thrust bearing. The repairing material is prepared by mixing cement slurry pumped and clay at the bottom of the water, and the rotating blades can be installed in an inward, outward, staggered and other installation modes, so that the mixture of the cement slurry and the soil body is polymerized inwards and dispersed or evenly distributed towards two sides. The method solves the repair problem of underwater crack leakage, has small work amount and simple operation, does not need operators to dive to repair the cracks, and improves the construction safety of the operators; the method is suitable for a series of underwater leakage repair of reservoirs, lakes, riverways, old ponds, tail reservoir mines and the like, and has strong practicability and wide applicability.)

1. A stirring type underwater crack repairing seepage-proofing device is characterized by comprising a stirring shaft and a supporting rod;

the stirring shaft is horizontally arranged at the bottom of the supporting rod and is driven by the motor to rotate;

the stirring shaft is a hollow shaft, the wall of the shaft is provided with a plurality of guniting holes, and the outer wall of the shaft is provided with a plurality of annular bulges (3); the annular bulge is used for fixing a plurality of stirring blades,

one end of the stirring shaft is closed, and the other end of the stirring shaft is connected with a cement slurry pumping pipe through a thrust bearing.

2. The stirring type underwater crack repairing and seepage preventing device is characterized in that a protective shell (6) is arranged outside the stirring shaft, and the bottom end and the front end of the protective shell are open;

the two ends of the stirring shaft are fixed with the end shafts on the two sides of the protective shell, and the motor is arranged at the top of the protective shell and is linked with the stirring shaft to rotate through the transmission chain.

3. The stirring type underwater crack repairing and seepage preventing device as claimed in claim 1, wherein the other end of the supporting rod is fixed on a ship body, and the control device drives a motor through a cable inside the supporting rod; the top end of the cement slurry pumping pipe is connected with a cement slurry pump arranged in the ship body.

4. The stirred underwater crack repair seepage control device according to claim 1, wherein the stirring blades (2) are arranged coaxially with the stirring shaft.

5. The stirring type underwater crack repairing and seepage preventing device as claimed in claim 1, wherein the length of the stirring blade (2) is 15-30 cm, and the connection mode with the annular protrusion comprises the following steps: inward installation, outward installation and staggered installation.

6. The stirring type underwater crack repairing and seepage preventing device as claimed in claim 1, wherein the stirring shaft has an inner diameter of 5-10 cm, an outer diameter of 6-15 cm and an axial length of 2-4 m.

7. The stirring type underwater crack repairing and seepage preventing device as claimed in claim 1, wherein the diameter of the guniting hole is 1-2 cm.

8. The stirring type underwater crack repairing and seepage preventing device as claimed in claim 1, wherein the ring width of the annular bulge is 3-8 cm, the thickness of the annular bulge is 0.5-1 cm, and the distance between the annular bulge and the annular bulge is 20-40 cm.

9. The construction method of the stirring type underwater crack repairing seepage-proofing device according to claim 1, characterized by comprising the following steps:

positioning according to the leakage detection result in advance, and driving the ship body to the top of the leakage position at the water bottom;

slowly lowering the stirring shaft through the support rod to stop the stirring shaft in front of the leakage position, and applying pressure to the stirring shaft to make the stirring shaft enter the surface soil body;

pumping cement slurry, and simultaneously starting a motor to link a stirring shaft to rotate, so that a stirring blade rotates at a preset speed, and fully mixing the cement slurry discharged from a slurry spraying hole with a soil body;

and starting the ship body to move forwards along the crack direction, and solidifying the mixture of the cement paste and the soil body gathered at the leakage position to form the anti-seepage reinforcing layer.

Technical Field

The invention relates to a crack repairing and seepage preventing device, in particular to a stirring type underwater crack repairing and seepage preventing device and a construction method thereof, and belongs to the technical field of civil engineering.

Background

As rivers and reservoirs are numerous in China and are just a large country for hydraulic engineering construction, underwater sludge layers are influenced by various factors such as water flow scouring and water level change along with the lapse of time, and cracks are inevitably formed in the using process. Meanwhile, many old tailings ponds also have leakage problems, seriously harm the environment and cause underground pollution.

Currently, for the leakage treatment of underwater cracks, submerged grouting or large-volume clay throwing-in to form a clay paving layer is mostly adopted. The former has high requirements on construction technicians and is high in danger; the latter needs to throw a large amount of clay into the water bottom, and the engineering quantity is large.

The two-phase balance is not a good method for solving underwater cracks, and a new technical processing scheme with convenient and safe construction, low cost and small engineering quantity is urgently needed.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide the stirring type underwater crack repairing and seepage preventing device which is convenient to construct and safe to operate.

In order to achieve the above object, the present invention adopts the following technical solutions:

a stirring type underwater crack repairing seepage-proofing device comprises a stirring shaft and a supporting rod;

the stirring shaft is horizontally arranged at the bottom of the supporting rod and is driven by the motor to rotate;

the stirring shaft is a hollow shaft, the wall of the shaft is provided with a plurality of guniting holes, and the outer wall of the shaft is provided with a plurality of annular bulges (3); the annular bulge is used for fixing a plurality of stirring blades,

one end of the stirring shaft is closed, and the other end of the stirring shaft is connected with a cement slurry pumping pipe through a thrust bearing.

A protective shell is arranged outside the stirring shaft, and the bottom end and the front end of the protective shell are open;

the two ends of the stirring shaft are fixed with the end shafts on the two sides of the protective shell, and the motor is arranged at the top of the protective shell and is linked with the stirring shaft to rotate through the transmission chain.

The other end of the supporting rod is fixed on the ship body, and the control device drives the motor through a cable in the supporting rod; the top end of the cement slurry pumping pipe is connected with a cement slurry pump arranged in the ship body.

The stirring blades and the stirring shaft are arranged in the same axial direction.

Above-mentioned stirring vane's length 15 ~ 30cm, with annular bellied connected mode include: inward installation, outward installation and staggered installation.

The stirring shaft has an inner diameter of 5-10 cm, an outer diameter of 6-15 cm and an axial length of 2-4 m.

The diameter of the guniting hole is 1-2 cm.

The ring width of the annular bulges is 3-8 cm, the thickness is 0.5-1 cm, and the distance is 20-40 cm.

The construction method of the stirring type underwater crack repairing and seepage preventing device comprises the following steps:

s1, positioning of the anti-seepage device: positioning according to the leakage detection result in advance, and driving the ship body to the top of the leakage position at the water bottom;

s2, slowly lowering the horizontal stirring shaft through the supporting rod to stop the horizontal stirring shaft in front of the leakage position, and applying pressure to the horizontal stirring shaft to enable the horizontal stirring shaft to enter the surface soil body;

s3, spraying and stirring: pumping cement slurry, and simultaneously starting a motor to link a stirring shaft to rotate, so that a stirring blade rotates at a certain speed, and cement slurry discharged from a slurry spraying hole is fully mixed with a soil body;

and S4, starting the ship body, slowly moving forwards along the crack direction, and slowly solidifying the mixture of the cement slurry and the soil body gathered at the leakage position to form an anti-seepage reinforcing layer.

The invention has the advantages that:

the stirring type underwater crack repairing and seepage preventing device combines the advantages of a rotary cultivator rotor, adopts a mode of mixing cement slurry pumped and clay at the bottom of water to prepare a repairing material, can flexibly assemble the rotating blades in combination with the actual underwater leakage condition, adopts various modes of inward installation, outward installation, staggered installation and the like, and enables the mixture of the cement slurry and a soil body to be inwardly polymerized and dispersed or evenly distributed to two sides. The method solves the repair problem of underwater crack leakage, has small work amount and simple operation, does not need operators to repair the cracks by diving, reduces the requirements on technical personnel and improves the construction safety of the operators; the method is suitable for a series of underwater leakage repair of reservoirs, lakes, riverways, old ponds, tail reservoir mines and the like, and has strong practicability and wide applicability.

Drawings

Fig. 1 is a schematic structural diagram of an agitation type underwater crack repair seepage-proofing device of the invention.

Fig. 2 is a schematic structural view of the stirring shaft of the present invention.

The designations in the drawings have the following meanings: 1. stirring shaft, 2, stirring vane, 3, annular protrusion, 4, cement slurry conveying pipe, 5, switching port, 6, protective shell, 7, bracing piece, 8, hull, 9, motor, 10, drive chain.

Detailed Description

The invention is described in detail below with reference to the figures and the embodiments.

A stirring type underwater crack repairing seepage-proofing device comprises a stirring shaft assembly, a transmission assembly and a cement slurry pumping pipe 4.

The main body of the stirring shaft assembly is a stirring shaft 1, the inner cavity of the stirring shaft is hollow, one end of the stirring shaft is closed, and the other end of the stirring shaft is open; the open end is connected with a transfer port 5 through a thrust bearing and is connected with the bottom end of a cement slurry pumping pipe 4 through the transfer port 5. When the stirring shaft 1 rotates, the thrust bearing makes the adapter port 5 and the cement slurry pumping pipe 4 relatively static. Preferably, the thrust bearing is built into the port of the adapter port 5.

The stirring shaft 1 has an inner diameter of 5-10 cm, an outer diameter of 6-15 cm and an axial length of 2-4 m. A plurality of slurry spraying holes with the diameter of 1-2 cm are uniformly distributed on the shaft wall of the stirring shaft; welding a plurality of rings of annular bulges 3 with the width of 3-8 cm and the thickness of 0.5-1 cm on the outer wall of the stirring shaft at axial intervals of 20-40 cm; a plurality of stirring blades 2 with the length of 15-30 cm are fixed with the annular bulge 3 through bolts. Preferably, the stirring blades 2 are arranged in parallel with the stirring shaft 1 along the axial direction of the stirring shaft 1; and the annular bulge 3 can be connected by adopting inward installation, outward installation, staggered installation and other modes according to actual needs.

The stirring shaft 1 is also provided with a protective shell 6, the two ends of the protective shell are fixed with end shafts on the two sides of the protective shell, and the motor is arranged at the top of the protective shell and is linked with the stirring shaft to rotate through a transmission chain. The bottom end of the supporting rod is fixed with the protective shell, the top end of the supporting rod is fixed with the ship body through the movable shaft, the control device is arranged in the ship body, the motor is driven through a cable in the supporting rod, and meanwhile power is supplied to the motor; the bottom end and the front end, i.e., the front side in the axial direction, of the shield shell 6 are open. The soil body is convenient to be brought into from the front end, the cement paste and the soil body are fully mixed in the protective shell 6, the mixture is discharged from the bottom end, and the mixture is laid along the leakage position.

The top end of the cement slurry pumping pipe 4 is connected with a cement slurry pump arranged in the ship body 8.

The construction method comprises the following steps:

s1, positioning of the anti-seepage device: positioning according to the leakage detection result in advance, and opening the ship body 8 to the top of the leakage position at the water bottom;

s2, slowly lowering the horizontal stirring shaft 1 through the supporting rod 7 to stop at the front of the leakage position, and applying pressure to the horizontal stirring shaft to make the horizontal stirring shaft enter the surface soil body;

s3, spraying and stirring: pumping cement slurry, starting a motor to link the stirring shaft 1 to rotate, enabling the stirring blade 2 to rotate at a certain speed, and fully mixing cement slurry discharged from a slurry spraying hole with a soil body;

s4, starting the ship body 8, slowly moving forward along the crack direction, and slowly solidifying the mixture of the cement slurry and the soil mass gathered at the leakage position to form an anti-seepage reinforcing layer.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.