All -round micro - disturbance pressure - control jet grouting device recycling pressure relief overflow mud

Abstract

The application discloses a kind of all-around micro-disturbance pressure control jet grouting device for recycling pressure relief overflow mud, the device includes grouting special pipe and grouting porous pipe, wherein: the grouting special pipe is connected with grouting porous pipe;The pipe wall of the grouting special pipe is provided with pressure sensor, mud injection port and mud recovery port;The inside of the grouting porous pipe is provided with high-pressure mud pipeline, mud recovery pipeline, jet vacuum pipeline, pressure sensing line pipeline, oil pressure drive joint along the axial direction;The high-pressure mud pipeline is sleeved in the inside of mud recovery pipeline, and jet vacuum pipeline, pressure sensing line pipeline, oil pressure drive joint are provided between mud recovery pipeline and grouting porous pipe;The high-pressure mud pipeline and mud recovery pipeline are connected by annular spiral mud conveyor belt.The application can realize the recycling of overflow mud and the release of grouting pressure, and finally realize the micro-disturbance controllable grouting, and the cost performance is high.

Description

Technical Field

[0001] This invention relates to a grouting device, specifically to an all-around micro-disturbance pressure-controlled rotary jet grouting device that recycles pressure-relieved overflow slurry. Background Technology

[0002] With rapid economic development and the continuous emergence of world-renowned construction projects in urban development and transportation planning, new challenges have been posed to engineering construction. Among the various existing construction technologies, grouting technology plays an important role in structural seepage prevention, foundation reinforcement, settlement inhibition, and foundation treatment. Moreover, innovations in construction techniques and the emergence of new equipment and materials have also provided conditions for the development of grouting technology.

[0003] Current grouting devices share a common characteristic: they generate significant soil displacement during construction, leading to ground heave, cracking, and deformation, impacting the surrounding environment and even causing serious damage. Furthermore, the overflow grout often utilizes air lift, draining through the annular gap between the grouting pipe and the undisturbed soil, which is detrimental to environmental protection. Some grouting methods directly employ forced suction devices to forcibly remove the overflow grout, but the high pressure during this process can easily cause the grout to become misshapen, failing to achieve the desired grouting effect. Therefore, there is an urgent need to develop a micro-disturbance, highly controllable grouting device that allows for the recycling of overflow grout. Thus, developing grouting devices based on energy-saving and environmentally friendly principles is of great significance. Summary of the Invention

[0004] To overcome the shortcomings of existing grouting devices in terms of reinforcement effect, sensitivity, and reliability, this invention provides an all-around micro-disturbance controlled pressure jet grouting device that recycles overflow grout. This device relieves grouting pressure by real-time monitoring of the grouting reinforcement pressure and discharging overflow grout, stabilizing the ground pressure and reducing deformation caused by grouting. The overflow grout can be recycled, avoiding pollution of groundwater and soil and impact on the surrounding environment. It boasts numerous performance advantages such as good reinforcement effect, high sensitivity, and high reliability, offering high cost-effectiveness, ease of construction, and long-term durability. It can accurately monitor and release grouting pressure in real time, aligning with energy conservation and environmental protection principles, and has promising application prospects.

[0005] The objective of this invention is achieved through the following technical solution: A comprehensive micro-disturbance pressure-controlled jet grouting device for recycling depressurized overflow grout includes a dedicated grouting pipe and a porous grouting pipe, wherein: The grouting-specific pipe and the grouting multi-hole pipe are connected through connecting bolt holes; The grouting pipe is equipped with a pressure sensor, a mud injection port, and a mud recovery port on its wall. The grouting multi-hole pipe is internally equipped with a high-pressure mud pipeline, a mud recovery pipeline, a jet vacuum pipeline, a pressure sensing line pipeline, and a hydraulic drive joint along the axial direction. The high-pressure mud pipeline is sleeved inside the mud recovery pipeline, and a jet vacuum pipeline, a pressure sensing line pipeline, and a hydraulic drive joint are provided between the mud recovery pipeline and the grouting porous pipe. The high-pressure mud pipeline is connected to the mud injection port and is used for high-pressure mud transportation. The mud recovery pipeline is connected to the mud recovery port for the recovery and reuse of overflowing mud; The jet vacuum pipeline is connected to the mud recovery pipeline, and the overflowing mud is sucked into the mud recovery pipeline through the mud recovery port using the vacuum environment. The pressure sensing conduit is used for the wiring of the pressure sensor. The hydraulic drive connector is connected to the jet vacuum pipeline and is used for power regulation of the vacuum environment; The high-pressure mud pipeline and the mud recycling pipeline are connected by a ring-shaped spiral mud conveyor belt for the recycling and reuse of overflowing mud.

[0006] Compared with the prior art, the present invention has the following advantages: 1. The device of the present invention can realize the recycling of overflow slurry and the release of grouting pressure, and ultimately achieves controllable micro-disturbance in grouting, with high cost performance.

[0007] 2. The device of this invention includes a dedicated grouting pipe and a multi-hole grouting pipe, which are connected by connecting bolts. Long distances can be achieved through multiple sections, facilitating construction and allowing for selective disassembly during installation. It also possesses long-term durability. The grouting pressure is monitored in real-time by a pressure sensor on the dedicated grouting pipe, reflecting real-time changes in the grouting environment with high sensitivity, thus avoiding adverse situations such as deformation caused by excessive pressure during grouting. The slurry is recycled by suctioning a portion of the overflowing slurry through a jet vacuum adjustment near the slurry recovery port, and then conveyed by a transmission device. This avoids forced suction over long distances that could damage the grouting body, resulting in good reinforcement and high reliability. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the grouting pipe of the present invention; Figure 2 This is a cross-sectional view of the grouting porous pipe of the present invention; Figure 3 This is a cross-sectional view of the grouting pipe of the present invention; Figure 4 This is a schematic diagram of the mud conveying device. In the diagram: 1. Grouting pipe, 2. Grouting multi-hole pipe, 101. Pressure sensor, 102. Mud injection nozzle, 103. Mud recovery port, 104. Mud conveyor belt, 201. High-pressure mud pipeline, 202. Mud recovery pipeline, 203. Jet vacuum pipeline, 204. Pressure sensor line pipeline, 205. Hydraulic drive connector, 206. Connecting bolt hole. Detailed Implementation

[0009] The technical solution of the present invention will be further described below with reference to the accompanying drawings, but it is not limited thereto. Any modifications or equivalent substitutions to the technical solution of the present invention that do not depart from the spirit and scope of the technical solution of the present invention should be covered within the protection scope of the present invention.

[0010] This invention provides an omnidirectional micro-disturbance pressure-controlled rotary grouting device for recycling depressurized overflow grout, such as... Figure 1-4 As shown, the device includes a grouting-specific pipe 1 and a grouting porous pipe 2, wherein: The grouting pipe 1 is used for high-pressure injection of grout, recycling of overflowing grout, and real-time monitoring and feedback of pressure during grouting. The grouting porous pipe 2 is used for pressurized conveying of mud, recovery and conveying of overflow mud, laying of pressure sensor lines and hydraulic drive; One end of the grouting multi-hole pipe 2 is sleeved inside the grouting special pipe 1 and connected through the connecting bolt hole 206. Several sections of grouting multi-hole pipe 2 can be set according to the grouting reinforcement depth, and finally connected to the matching grouting and mud recovery device. The grouting special pipe 1 is arranged at the place to be grouted and reinforced, and the grouting multi-hole pipe 2 is arranged in the grouting borehole. The long-distance multi-section connection is easy to construct. It can be disassembled during construction and has long-term durability. The grouting pipe 1 is equipped with a pressure sensor 101, a slurry injection port 102, and a slurry recovery port 103. The pressure sensor 101 is used to monitor and provide feedback on the grouting pressure of the grouting body in real time, which can reflect changes in the grouting environment and has high sensitivity, thereby avoiding adverse situations such as deformation caused by excessive pressure during the grouting process. The slurry injection port 102 is used to achieve 360° rotation to achieve all-round grouting of the pre-reinforced solid, and the grouting range can be adjusted according to the grouting needs. The slurry recovery port 103 can realize the recycling of overflowing slurry and the release of grouting pressure, ultimately achieving controllable micro-disturbance during grouting and high cost-effectiveness. The grouting porous pipe 2 consists of a high-pressure mud pipe 201, a mud recovery pipe 202, a jet vacuum pipe 203, a pressure sensing line pipe 204, a hydraulic drive connector 205, and connecting bolt holes 206. The high-pressure mud pipe 201 is sleeved inside the mud recovery pipe 202. The jet vacuum pipe 203, pressure sensing line pipe 204, and hydraulic drive connector 205 are arranged between the mud recovery pipe 202 and the grouting porous pipe 2. The high-pressure mud pipe 201 is used for high-pressure mud transportation; the mud recovery pipe 202 is used for the recovery and reuse of overflow mud; the jet vacuum pipe 203... 03. The overflowing mud is sucked into the mud recovery pipeline 202 through the mud recovery port 103 using a vacuum environment, avoiding long-distance suction; the pressure sensor line pipeline 204 is used for the wiring of the pressure sensor; the hydraulic drive joint 205 is used for the power adjustment of the vacuum environment; the connecting bolt hole 206 connects the grouting special pipe 1 to the grouting multi-hole pipe 2 and several sections of the grouting multi-hole pipe 2. It is worth noting that the high-pressure mud pipeline 201, mud recovery pipeline 202, jet vacuum pipeline 203 and pressure sensor line pipeline 204 in several grouting multi-hole pipes 2 are interconnected, which can carry out long-distance grouting reinforcement. The high-pressure mud pipeline 201 and the mud recovery pipeline 202 are connected by an annular spiral mud conveyor belt 104 for recycling and reuse of overflowing mud, avoiding long-distance forced suction that could damage the grouting body, resulting in good reinforcement effect and high reliability.

[0011] The aforementioned device achieves 360° all-round jet grouting reinforcement of the area to be reinforced by pressurizing and transporting the grout through the grouting multi-hole pipe to the grouting special pipe. Based on the real-time monitoring and feedback of the grouting pressure of the grouting body by the pressure sensor installed in the grouting special pipe, the oil pressure of the grouting multi-hole pipe is driven to regulate the jet vacuum environment. The overflow grout is then recycled in a controlled manner and the grouting pressure is released through the grout recovery port using a undisturbed conveyor belt.

[0012] In summary, the aforementioned all-around micro-disturbance pressure-controlled jet grouting device, which recycles overflowing grout, avoids pollution of groundwater and soil by overflowing grout and the impact of excessive pressure on the surrounding environment during grouting. It has many performance advantages such as good reinforcement effect, high sensitivity, and high reliability. It is cost-effective, easy to construct, durable, and can accurately monitor and release grouting pressure in real time. It conforms to the concept of energy conservation and environmental protection and has good application prospects.

Claims

1. A comprehensive micro-disturbance pressure-controlled rotary grouting device for recycling depressurized overflow slurry, characterized in that: The device includes a grouting-specific pipe and a grouting-perforated pipe, wherein: One end of the grouting multi-hole pipe is sleeved inside the grouting special pipe, and several sections of grouting multi-hole pipe are set according to the grouting reinforcement depth; The grouting pipe is equipped with a pressure sensor, a mud injection port, and a mud recovery port on its wall. The grouting multi-hole pipe is internally equipped with a high-pressure mud pipeline, a mud recovery pipeline, a jet vacuum pipeline, a pressure sensing line pipeline, and a hydraulic drive joint along the axial direction. The high-pressure mud pipeline is sleeved inside the mud recovery pipeline, and a jet vacuum pipeline, a pressure sensing line pipeline, and a hydraulic drive joint are provided between the mud recovery pipeline and the grouting porous pipe. The high-pressure mud pipeline is connected to the mud injection port and is used for high-pressure mud transportation. The mud recovery pipeline is connected to the mud recovery port for the recovery and reuse of overflowing mud; The jet vacuum pipeline is connected to the mud recovery pipeline, and the overflowing mud is sucked into the mud recovery pipeline through the mud recovery port using the vacuum environment. The pressure sensing conduit is used for the wiring of the pressure sensor. The hydraulic drive connector is connected to the jet vacuum pipeline and is used for power regulation of the vacuum environment; The high-pressure mud pipeline and the mud recycling pipeline are connected by a ring-shaped spiral mud conveyor belt for the recycling and reuse of overflow mud.

2. The all-around micro-disturbance pressure-controlled rotary jet grouting device for recycling depressurized overflow mud according to claim 1, characterized in that: The high-pressure mud pipeline, mud recovery pipeline, jet vacuum pipeline, and pressure sensing line pipeline in the several sections of grouting porous pipe are interconnected.

3. The all-around micro-disturbance pressure-controlled rotary jet grouting device for recycling depressurized overflow slurry according to claim 1, characterized in that: The grouting-specific pipe is placed at the location to be grouted and reinforced, and the grouting multi-hole pipe is placed in the grouting borehole.

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