Green dam breaking device and method

Abstract

The application discloses a green dam dismantling device and method, which comprises a pipeline, a hole sealing component, a pressurizing component and a power supply component. The pipeline comprises a pipe body, a conveying pipe, a wire and a filling material. The wire is provided with an electrode at the tail end. A hole is drilled on the dam body, and the pipeline is installed in the hole. The pressurizing component is connected with the hole through the conveying pipe, and fluid is injected into the hole through the conveying pipe, so that the dam body is cracked by the pressure of the fluid. The power supply component is connected with the electrode through the wire, and the power supply component supplies power to the electrode. The fluid flows into the cracks of the dam body, and the electrification of the fluid can accelerate the corrosion of the dam body, so that the dam body loses the cementation performance and the integrity of the dam body is damaged. The green dam dismantling device has the advantages of small dismantling risk, no need of dense hole distribution, no noise and dust pollution, and safety and high efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dam removal, in particular to a green dam removal device and method. BACKGROUND

[0002] The dam removal of a reservoir is actually a process of destroying the integrity of the dam and changing it into a non-integral body, i.e. a disintegration process. A mortar dam is a dam formed by masonry of stones with cementing material (mainly cement mortar), which has the advantages of mature design method, strong terrain adaptability, and easy-to-obtain dam building material, and is widely used in China. At present, the removal of a mortar dam mainly has the methods of blasting removal and mechanical removal, among which the blasting removal is most widely used due to its low cost and high efficiency. However, the blasting removal has the disadvantages of high risk, easy induction of earthquake, flying stone hazard, large noise, shock wave, dust pollution, and toxic gas hazard, which puts forward high requirements for the application conditions. The mechanical removal has the advantages of simplicity and convenience, but has the disadvantages of low work efficiency, large noise, and dust pollution. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a green dam removal method with small risk, no noise and dust pollution.

[0004] The present application also proposes a green dam removal device using the green dam removal method.

[0005] The green dam removal method according to the first aspect of the present application comprises the following steps:

[0006] Drilling: drilling holes in the dam body to drill a plurality of channels;

[0007] Installation: installing a pipe in the channel to close the channel;

[0008] Pressurization: injecting a fluid into the channel through the pipe to crack the dam body;

[0009] Electrification: applying a constant voltage to the fluid to accelerate the corrosion of the dam body;

[0010] Removal: removing the corroded dam body.

[0011] The green dam removal method according to the first aspect of the present application has at least the following beneficial effects: the green dam removal method of the present application cracks the dam body by drilling holes in the dam body, injecting a fluid into the channels, and using the pressure of the fluid, and accelerates the corrosion of the dam body by electrification, so as to make the dam body lose the cementing property and destroy the integrity of the dam body. The green dam removal method of the present application has small risk, no need for dense hole distribution, no noise and dust pollution, and is safe and efficient.

[0012] In some embodiments, in the drilling step, after drilling the plurality of holes, the method further comprises:

[0013] cleaning: cleaning the plurality of holes drilled.

[0014] In some embodiments, in the closing step, when closing the holes, the method further comprises:

[0015] closing: closing the hole openings of the holes using a hole closing component.

[0016] In some embodiments, in the pressurizing step, the fluid is deionized water.

[0017] In some embodiments, the pipe comprises a pipe body, a delivery pipe, a wire, and a filler, an electrode is arranged at the end of the wire, the delivery pipe and the wire are arranged in the pipe body, and the filler is arranged between the delivery pipe and the wire.

[0018] In some embodiments, in the energizing step, the constant voltage is not less than 60V.

[0019] A green dam removing device according to a second aspect of the embodiments of the present application comprises:

[0020] a pipe, a plurality of pipes are arranged in the holes of the dam body, the pipe comprises a pipe body, a delivery pipe, a wire, and a filler, an electrode is arranged at the end of the wire, the delivery pipe and the wire are arranged in the pipe body, and the filler is arranged between the delivery pipe and the wire;

[0021] a hole closing component for closing the holes;

[0022] a pressurizing component, the pressurizing component is provided with a storage cavity for storing a fluid, and the pressurizing component is connected to the holes through the delivery pipe;

[0023] a power supply component, the power supply component is connected to the electrode through the wire.

[0024] According to the green dam demolishing device of the second aspect of the present application, at least the following advantages are achieved: the green dam demolishing device of the present application comprises a pipeline, a hole sealing component, a pressurizing component and a power supply component, the pipeline comprises a pipe body, a conveying pipe, a wire and a filler, the wire is provided with an electrode at the end thereof, a hole is drilled on the dam body, the pipeline is installed in the hole, the pressurizing component is connected with the hole through the conveying pipe, fluid is injected into the hole through the conveying pipe, and the dam body is cracked by the pressure of the fluid; the power supply component is connected with the electrode through the wire, and the power supply component supplies power to the electrode, the fluid flows into the cracks of the dam body, and the power supply of the fluid can accelerate the corrosion of the dam body, so that the dam body loses the cementation performance and the integrity of the dam body is destroyed. The green dam demolishing device of the present application has the advantages of small dam demolishing risk, no need of dense hole arrangement, no noise and no dust pollution, and is safe and efficient.

[0025] In some embodiments, the pressurizing component comprises a pressurizing pump and a water tank with the storage cavity, the water tank is connected with the pressurizing pump, and the pressurizing pump is connected with the conveying pipe.

[0026] In some embodiments, the pipe body is made of PVC material, and the filler is made of steel material.

[0027] In some embodiments, the hole sealing component is a hydraulic packer.

[0028] Additional aspects and advantages of the present application will be made apparent from the following description, which, taken in conjunction with the accompanying drawings, that will be part hereof. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0030] Figure 1 is a structural schematic diagram of a green dam demolishing device according to an embodiment of the present application;

[0031] Figure 2 is Figure 1 is a structural schematic diagram of a pipeline shown;

[0032] Figure 3 is a flow chart of a green dam demolishing method according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which examples of the embodiments are shown, and the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0034] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, inside, outside, etc., are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0035] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this invention, unless otherwise explicitly defined, terms such as setting, installing, connecting, assembling, and cooperating should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0037] The following reference Figures 1 to 3 This invention describes a green dam removal device and a green dam removal method according to embodiments of the present invention.

[0038] The green dam dismantling device of this invention, such as Figures 1 to 2 As shown, the system includes a pipe 100, a sealing component 200, a pressurizing component, and a power supply component 400. The pipe 100 is installed within the ducts of the dam body. The pipe 100 includes a pipe body 110, a delivery pipe 120, a conductor 130, and filler material 140. An electrode 150 is installed at the end of the conductor 130. The delivery pipe 120 and the conductor 130 are located within the pipe body 110, and the filler material 140 is located between the delivery pipe 120 and the conductor 130. Multiple pipes 100 are installed within the ducts of the dam body; specifically, four pipes 100 are installed within four ducts of the dam body to facilitate pressurization and power supply to the dam. The arrangement of four ducts and four pipes 100 allows for thorough and rapid dismantling of the dam body without the need for dense perforation, resulting in high dismantling efficiency. After drilling multiple holes in the dam body, pipe 100 is installed inside the holes, and the hole opening is sealed with sealing component 200 to ensure the safety and stability of pipe 100 inside the holes and to ensure the normal operation of subsequent pressurization and power supply.

[0039] The pressurizing component is provided with a storage cavity, a fluid is arranged in the storage cavity, the pressurizing component is connected with the hole channel through the conveying pipe 120, the fluid is injected into the hole channel through the conveying pipe 120 of the pipe 100, so that the dam body is cracked. The dry masonry dam is a dam formed by masonry of stones by cementing material (mainly cement mortar), the strength of the cement mortar is lower than that of the stones, so the cement mortar is cracked before the stones. When the pressure of the fluid exceeds the tensile strength of the cement mortar, the cement mortar is cracked and cracked, the fluid flows into the newly generated crack and accumulates in the crack, when the fluid pressure in the crack exceeds the critical pressure of crack expansion, the crack continues to expand along the cement mortar, and the gradual cracking of the dam body is realized. At the same time, since the cement mortar is easy to be corroded, when the crack expands, the cement mortar at the crack boundary will be corroded, so that the strength of the dam body is reduced, and the dam body is convenient for subsequent demolition.

[0040] The power supply component 400 is connected with the electrode 150 through the wire 130, the power supply component 400 can supply power to the fluid through the wire 130 and the electrode 150, under the action of the fluid, the cement mortar at the crack boundary is corroded, the power supply component 400 applies a constant voltage to the fluid, and the external electric field accelerates the diffusion speed of Ca 2+ , thereby accelerating the dissolution of calcium hydroxide and the decalcification of C-S-H gel, and further realizing the accelerated corrosion of the cement mortar. After corrosion, the composition of the cement mortar hydration product changes, the calcium hydroxide is greatly reduced, other hydration products such as calcium silicate are also decomposed, the calcium content is greatly reduced, the Ca / Si ratio is greatly reduced, the hydration product density gradually reduces, the gel group becomes dispersed and small, and the gelation effect is gradually lost, and then the dry masonry dam is demolished.

[0041] The green dam demolition device of the application comprises a pipe 100, a hole sealing component 200, a pressurizing component and a power supply component 400, a hole channel is drilled on the dam body, the pipe 100 is installed in the hole channel, the pressurizing component is connected with the hole channel through the conveying pipe 120, the fluid is injected into the hole channel through the conveying pipe 120, and the dam body is cracked through the pressure of the fluid; the power supply component 400 is connected with the electrode 150 through the wire 130, the power supply component 400 supplies power to the electrode 150, the fluid flows into the crack of the dam body, and the power supply of the fluid can accelerate the corrosion of the dam body, so that the dam body loses the cementation performance and the integrity of the dam body is damaged. The green dam demolition device has the advantages of small demolition risk, no need of dense hole arrangement, no noise and dust pollution, safety and high efficiency.

[0042] In some embodiments, the pressurizing component comprises a pressurizing pump 320 and a water tank 310 having a storage cavity, the water tank 310 is connected with the pressurizing pump 320, and the pressurizing pump 320 is connected with the delivery pipe 120. The pressurizing component comprises the water tank 310 and the pressurizing pump 320, the water tank 310 is formed with a storage cavity, fluid is stored in the storage cavity, the water tank 310 is connected with the pressurizing pump 320, the pressurizing pump 320 is connected with the delivery pipe 120, the pressurizing pump 320 can pressurize the fluid in the water tank 310, the pressurized fluid is delivered into the hole through the delivery pipe 120, the pressure of the pressurized fluid exceeds the tensile strength of the cement mortar, and the cement mortar in the dam body can be cracked to improve the dam removal efficiency.

[0043] In some embodiments, the pipe body 110 is made of PVC material, and the filler 140 is made of steel material. The PVC material has the advantages of waterproof and slip resistance, light self-weight, good corrosion resistance, strong wear resistance, high pressure resistance, and convenient processing. Using the PVC material as the material of the pipe body 110 can fully utilize the characteristics of the PVC material, such as waterproof and slip resistance, wear resistance, pressure resistance, and corrosion resistance, to protect the structure in the pipe body 110 and keep the pipeline 100 stable during the dam removal process. The filler 140 is made of steel material and arranged between the wire 130 and the delivery pipe 120, and filled in the pipe body 110, which can strengthen the strength of the pipe body 110 and keep the wire 130 and the delivery pipe 120 stable in the pipe body 110, thereby improving the performance of the pipeline 100.

[0044] In some embodiments, the hole sealing component 200 is a hydraulic packer. The hydraulic packer is used to seal the hole, specifically, after the hydraulic packer reaches the designed depth, the oil pipe is pressurized, the high-pressure liquid acts on the inner cavity of the rubber sleeve through the internal pressure transmission aperture, and the rubber sleeve expands to seal the hole under the throttling pressure difference. When the oil pressure is released and the oil jacket pressure is balanced, the rubber sleeve is contracted to the original state by the self-rebound force to realize unsealing, and the hydraulic packer can be recycled to realize the repeated use of the hydraulic packer.

[0045] The present application provides a green dam removal method with small risk, no noise and dust pollution.

[0046] According to the green dam removal method of the first aspect of the present application, as shown in Figure 3 , the method comprises the following steps:

[0047] S1 drilling: drilling holes in the dam body to form a plurality of holes. Specifically, the hole position is designed according to the structural characteristics of the dam body, and the dam body is drilled according to the designed hole position to form a plurality of holes.

[0048] S2 installation: install the pipe 100 in the hole, and seal the hole. Specifically, the pipe 100 is installed in the hole of the dam body to facilitate the completion of the pressurization and energization of the dam body. After the installation of the pipe 100, the hole is sealed to protect the pipe 100 in the hole.

[0049] S3 pressurization: inject fluid into the hole through the pipe 100 to crack the dam body. Specifically, the fluid is injected into the hole through the pipe 100, and the pressure of the fluid exceeds the tensile strength of the cement mortar, the cement mortar cracks and cracks, the fluid rushes into the newly generated cracks and accumulates in the cracks, when the fluid pressure in the cracks exceeds the critical pressure of crack propagation, the cracks continue to expand along the cement mortar, and the gradual cracking of the dam body is realized. In some embodiments, the fluid is deionized water, which is more conducive to the dissolution of the cement mortar, facilitating cracking and corrosion.

[0050] S4 energization: apply a constant voltage to the fluid to accelerate the corrosion of the dam body. Specifically, under the action of the fluid, the cement mortar at the crack boundary will corrode, a constant voltage is applied to the fluid, and the external electric field accelerates the diffusion speed of Ca 2+ in the pore solution inside the cement mortar, thereby accelerating the dissolution of calcium hydroxide and the decalcification of C-S-H gel, and further realizing the accelerated corrosion of the cement mortar. After corrosion, the composition of the cement mortar hydration product changes, the amount of calcium hydroxide decreases greatly, other hydration products such as calcium silicate also decompose, the calcium content decreases greatly, the Ca / Si ratio decreases greatly, the hydration product density gradually decreases, the gel group becomes dispersed and small, and gradually loses the cementing effect, so as to facilitate subsequent removal. In some embodiments, the value of the constant voltage is not less than 60V.

[0051] S5: remove the corroded dam body. Specifically, the strength of the corroded dam body is low, and the dam body can be removed by prying. The removed dam body waste is loaded and transported to achieve the removal of the dam body.

[0052] The green dam removal method of the present application cracks the dam body by drilling holes on the dam body, injecting fluid into the hole, and using the pressure of the fluid to crack the dam body, and uses electricity to accelerate the corrosion of the dam body, so as to make the dam body lose the cementing property and destroy the integrity of the dam body. The green dam removal method of the present application is safe and efficient with small risk, no need for intensive hole distribution, no noise and dust pollution.

[0053] In some embodiments, in the drilling step, after drilling a plurality of holes, the plurality of drilled holes are cleaned. Cleaning the hole can remove various impurities in the hole, facilitating the subsequent installation of the pipe 100 and the injection of the fluid, making the dam removal safer and more stable.

[0054] In some embodiments, in the installation step, the hole is closed by using the hole sealing component 200 to close the hole of the hole. The hole sealing component 200 is arranged as a hydraulic packer. Specifically, after the hydraulic packer is lowered to the designed depth, the inside of the hydraulic packer is pressurized from the inside of the oil pipe. The high-pressure liquid acts on the inner cavity of the rubber tube through the internal pressure transmission aperture. Under the action of the throttle pressure difference, the rubber tube expands to close the hole. When the oil pressure is released and the oil jacket pressure is balanced, the rubber tube is contracted to the original state by the resilience of the rubber tube to realize the unsealing. The hydraulic packer can be recycled to realize the repeated use of the hydraulic packer.

[0055] In some embodiments, the pipe 100 includes a pipe body 110, a delivery pipe 120, a wire 130, and a filler 140. The wire 130 is provided with an electrode 150 at the end thereof. The delivery pipe 120 and the wire 130 are arranged in the pipe body 110. The filler 140 is arranged between the delivery pipe 120 and the wire 130. The pipe 100 is installed in the hole. The delivery pipe 120 is arranged in the pipe body 110. The fluid is injected into the hole through the delivery pipe 120. The dam body is cracked by the pressure of the fluid. The wire 130 is arranged in the pipe body 110. The electrode 150 is powered through the wire 130. The electrically conductive fluid can accelerate the corrosion of the dam body, so that the dam body loses the cementation performance and the integrity of the dam body is damaged. The filler 140 is filled in the pipe body 110. The strength of the pipe body 110 is enhanced. The wire 130 and the delivery pipe 120 are kept stable in the pipe body 110. The performance of the pipe 100 is improved.

[0056] The embodiments of the application are described in detail above with reference to the drawings, but the application is not limited to the above-described embodiments. Within the scope of the knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the application.

Claims

1. A green dam dismantling method, characterized in that, Includes the following steps: Drilling: Drilling holes in the dam body to create multiple channels; Installation: Install the pipe in the duct and seal the duct; Pressurization: Injecting fluid through the pipe into the duct to cause the dam body to crack; Electrolysis: Applying a constant voltage to the fluid accelerates the corrosion of the dam body; Demolition: The corroded dam body is dismantled.

2. The green dam dismantling method according to claim 1, characterized in that, In the drilling step, after drilling multiple channels, the process further includes: Hole cleaning: Cleaning the drilled channels.

3. The green dam removal method according to claim 1, characterized in that, In the installation step, when sealing the channel, the method further includes: The opening of the channel is sealed using a sealing component.

4. The green dam dismantling method according to claim 1, characterized in that, In the pressurization step, the fluid is set as deionized water.

5. The green dam removal method according to claim 1, characterized in that, The pipeline includes a pipe body, a delivery pipe, a wire, and a filler. An electrode is provided at the end of the wire. The delivery pipe and the wire are disposed within the pipe body, and the filler is disposed between the delivery pipe and the wire.

6. The green dam removal method according to claim 1, characterized in that, During the energizing step, the value of the constant voltage is not less than 60V.

7. A green dam dismantling device, used in the green dam dismantling method according to any one of claims 1 to 6, characterized in that, include: The pipeline includes multiple pipelines installed within ducts in the dam body. Each pipeline comprises a pipe body, a delivery pipe, a conductor, and filler material. An electrode is installed at the end of the conductor. The delivery pipe and the conductor are installed within the pipe body, and the filler material is installed between the delivery pipe and the conductor. A sealing component for sealing the channel; A pressurizing component, wherein the pressurizing component is provided with a storage chamber for storing fluid, and the pressurizing component is connected to the channel through the delivery pipe; A power supply component, which is connected to the electrode via the wire.

8. The green dam dismantling device according to claim 7, characterized in that, The pressurizing component includes a pressurizing pump and a water tank having the storage chamber, the water tank being connected to the pressurizing pump, and the pressurizing pump being connected to the delivery pipe.

9. The green dam dismantling device according to claim 7, characterized in that, The pipe body is made of PVC, and the filler is made of steel.

10. The green dam dismantling device according to claim 7, characterized in that, The sealing component is configured as a hydraulic packer.

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