CN115721974B - Slurry circulation preparation grouting system behind shield muck wall - Google Patents
Slurry circulation preparation grouting system behind shield muck wall Download PDFInfo
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- CN115721974B CN115721974B CN202310042524.6A CN202310042524A CN115721974B CN 115721974 B CN115721974 B CN 115721974B CN 202310042524 A CN202310042524 A CN 202310042524A CN 115721974 B CN115721974 B CN 115721974B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a slurry circulation preparation grouting system behind a shield muck wall, which belongs to the field of shield equipment, and is characterized in that the shield muck is discharged into a standby slurry tank through a slag discharge pipeline, wherein the standby slurry tank comprises a tank body, a liquid inlet pipe, a central pipe, a rotating disk and a power part; the liquid inlet pipe is communicated with a slag discharge pipeline; the central pipe is vertically fixed on the inner bottom surface of the tank body, and the top end and the bottom end of the central pipe are made of a screen; the rotating disc is in an inverted frustum shape, the inner side face of the bottom end of the rotating disc is in rotating and sealing connection with the outer side face of the central tube, and the upper side of the rotating connection position of the central tube is provided with a screen; the outer side surface of the top edge of the rotating disc is meshed with a gear driven by a motor of the power part, and the power part drives the rotating disc to rotate, so that block bodies which do not enter the central tube are thrown out of the rotating disc; the middle part of the central pipe is provided with a booster pump which pressurizes slurry entering the central pipe, so that the slurry enters the tank body from the bottom end of the central pipe. The system can directly make the muck discharged by the shield into required slurry to complete shield grouting operation in a matching way.
Description
Technical Field
The invention relates to shield construction slurry preparation and grouting equipment, in particular to a device for preparing directly-usable slurry from broken slag soil.
Background
In the existing grouting operation, cement, fly ash, medium sand, soil and water are mixed to prepare grouting slurry through slurry preparation equipment, and the grouting slurry is added behind the wall of the duct piece.
In the prior art, slurry is longitudinally filled into a slurry tank, and a lower liquid flow flows upwards to ensure that the slurry has a relatively stable partition in the longitudinal direction. The equipment can not be used for on-site treatment of the residue soil slurry, and the slurry still needs to be stacked and stored for standby in a large area after being discharged. Therefore, if qualified slurry treatment is completed in the residue soil discharging process, the slurry is matched with grouting to work synchronously, so that the storage and stacking of a large amount of residue soil are reduced, and the construction difficulty and the management difficulty of a construction site are reduced.
Disclosure of Invention
The embodiment of the application provides a slurry circulation preparation slip casting system behind shield constructs dregs wall, has solved among the prior art a large amount of piles of dregs, and the construction is big with the management degree of difficulty, has realized the effect that the thick liquid is directly made to the dregs.
The embodiment of the application provides a slurry circulation preparation grouting system behind shield residual soil wall, which comprises a slag discharging pipeline and a slurry preparation tank, wherein the shield residual soil is discharged into the slurry preparation tank through the slag discharging pipeline, and the slurry preparation tank comprises a tank body, a liquid inlet pipe, a central pipe, a rotating disk and a power part;
the tank body is used for containing slurry;
the liquid inlet pipe is communicated with a slag discharge pipeline;
the central pipe is vertically fixed on the inner bottom surface of the tank body, and the top end and the bottom end of the central pipe are made of a screen;
the rotating disc is in an inverted frustum shape, the inner side face of the bottom end of the rotating disc is in rotating and sealing connection with the outer side face of the central tube, and the upper side of the rotating connection position of the central tube is provided with a screen;
the outer side face of the top edge of the rotating disc is meshed with a gear driven by a motor of the power part, and the power part drives the rotating disc to rotate, so that block bodies which do not enter the central tube are thrown out of the rotating disc;
the middle part of the central pipe is provided with a booster pump which pressurizes slurry entering the central pipe, so that the slurry enters the tank body from the bottom end of the central pipe.
The tank body is characterized by further comprising a separation net, wherein the separation net is positioned at the middle lower part of the tank body, and the periphery of the separation net is fixedly connected with the inner wall of the tank body; the central pipe penetrates through the separation net;
a floating ball is arranged between the separation net and the bottom of the tank, and the floating ball is a plastic hollow ball with density lower than that of water; the floating ball floats on the lower side surface of the separation net and is accumulated downwards; the volume ratio of the floating ball to the space at the lower side of the separation net is 1/4-3/4.
Furthermore, the diameter of the floating ball is 5-15 cm.
Furthermore, the bottom end of the floating ball at the lowest part is higher than the upper end of the screen at the bottom end of the central pipe by the accumulation amount of the floating balls.
Further, the stock preparation tank also comprises an air pump, and the air pump pumps air to the bottom of the tank body through an air inlet pipe; the air inlet pipe is provided with through holes which are uniformly distributed, and the diameter of each through hole is not more than 2mm.
Furthermore, a material mixing ball is placed in the space above the separation net, and the material mixing ball comprises a ball body and an air entraining rod;
the diameter of the sphere is not more than 5cm; the length of the air entraining rod is not more than 3cm; the length of the feather rod is not more than 5mm; the number of the feather rods on each air entraining rod is not less than 10, and the distance between every two adjacent feather rods in the length direction of the air entraining rods is not more than 3mm; the empty end of the feather rod points to the ball body, and the included angle between the feather rod and the air-inducing rod is 15-45 degrees.
Furthermore, the material mixing ball also comprises an eccentric block and a gas storage cover; the eccentric block is positioned in the sphere, so that the gravity center of the sphere deviates from the sphere center and deviates to the position of the eccentric block;
the gas storage cover is a spherical shell with the diameter larger than that of the sphere, is concentric with the sphere and is fixed on the gas guide rod; the opening of the gas storage cover is circular, and the line connecting the center of gravity and the center of the sphere passes through the center of the opening of the gas storage cover; the opening of the gas storage cover is positioned at the middle lower part of the sphere.
The slurry feeding device further comprises a feeding assembly, wherein the feeding assembly comprises a hose and a slurry feeding part, the hose is positioned in the tank body, and one end of the hose is communicated with the discharge pipe;
the other end of the hose is fixed with the pulp inlet part;
advance thick liquid portion including buoyancy portion, the density of buoyancy portion can be adjusted or change as required, makes buoyancy portion drive the feed inlet of hose float in the thick liquid height scope of required density.
Further, the slurry inlet part comprises a floating block, a slurry inlet, an inner pipe and a connecting pipe;
the floating block is cylindrical, the inner part of the floating block is hollow, two ends of the floating block are opened to form a slurry inlet, the inner pipe is coaxially and rotatably connected with the cylindrical hole in the floating block, the center of the inner pipe is communicated with a connecting pipe, and the connecting pipe is communicated with the hose;
the floating block is the buoyancy part.
Further, the slurry inlet part comprises a floating ring, a feeding ring, a pull rope, a drawing ring and a liquid mixing pump;
the floating ring is communicated with a liquid adjusting pipe, the liquid adjusting pipe is communicated with a liquid adjusting pump, and the liquid adjusting pump injects liquid and extracts liquid into the floating ring through the liquid adjusting pipe, so that the gravity of the floating ball is adjusted, and the upper and lower positions of the floating block in the slurry are adjusted; the floating ring is the buoyancy part;
the feeding ring is fixedly connected with the floating ring through a pull rope; the inner side surface of the feeding ring is provided with a plurality of feeding holes, the feeding ring is communicated with a material guiding ring fixed outside the tank body through a hose, and the material guiding ring is communicated with a discharging pipe.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: in the floating process of the slurry in the tank body, the upwelling rates of water and clay sand and stone particles in the slurry are different, and layers with different densities are formed in the longitudinal direction, and the density of the slurry during slurry discharge can be adjusted by adjusting the slurry inlet supercharging pressure; large pieces of material can be removed by the rotating disc.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the apparatus with mixing balls;
FIG. 3 is a schematic view of a mixing ball structure;
FIG. 4 is a schematic structural view of a mixing ball with an eccentric block and a gas storage cover;
FIG. 5 is a schematic view of a first feed assembly;
FIG. 6 is a schematic diagram of the present invention with a second feed assembly.
In the figure, a stock preparation tank 100, a tank body 110, a liquid inlet pipe 120, a central pipe 130, a booster pump 131, a rotary disc 140, a power part 150, an air pump 160, an air inlet pipe 161, a separation net 170 and a discharge pipe 181;
the floating ball 200, the mixing ball 300, the ball body 310, the air guide rod 320, the feather rod 321, the eccentric block 330 and the air storage cover 340;
the feeding assembly 600, the hose 610, the slurry inlet 620, the floating block 621, the slurry inlet 622, the inner pipe 623 and the connecting pipe 624; a floating ring 625, a feed ring 626, a pull rope 627; the feeding ring 630, the liquid mixing pump 640 and the liquid mixing pipe 641.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The on-site slurry treatment process comprises the following steps: discharging and stacking dregs, screening the dregs, selecting soil particles with proper particle size for pulping, mixing cement and other components, and then performing grouting operation. Where the discharge and screening of the muck requires a large amount of land. Based on this, after the dregs are conveyed to the ground operation field, the dregs are quickly processed to directly prepare the required slurry, and then area stacking and screening operations are not needed, so that the space and time are saved, and the construction and management difficulty is reduced. The slurry can be used for preparing synchronous slurry with components such as cement, a polyphenyl propylene solution and the like, and is injected into the wall of the segment.
Example one
As shown in fig. 1, a grouting system for circularly preparing slurry behind shield residual soil wall, comprising a slag discharge pipeline and a slurry preparation tank 100, wherein the slag discharge pipeline discharges shield residual soil into the slurry preparation tank 100,
the slurry preparation tank 100 comprises a tank body 110, a liquid inlet pipe 120, a central pipe 130, a rotating disc 140 and a power part 150;
the tank body 110 is used for containing slurry;
the liquid inlet pipe 120 is communicated with a slag discharge pipeline;
the central pipe 130 is vertically fixed on the inner bottom surface of the tank body 110, and the top end and the bottom end of the central pipe 130 are made of a screen;
the rotating disc 140 is in an inverted frustum shape, the inner side surface of the bottom end of the rotating disc is in rotating and sealing connection with the outer side surface of the central tube 130, and the upper side of the rotating connection position of the central tube 130 is provided with a screen;
the outer side surface of the top edge of the rotating disc 140 is meshed with a gear driven by a motor of the power part 150, and the power part 150 drives the rotating disc 140 to rotate, so that blocks which do not enter the central tube 130 are thrown out of the rotating disc;
the central pipe 130 is provided with a booster pump in the middle thereof for pressurizing the slurry entering the central pipe 130, so that the slurry enters the tank body 110 from the bottom end of the central pipe 130.
In actual use, the slurry flows onto the rotating discs 140 and is flushed into the tank 110 by the pressurisation of the central tube 130. The rotating disc 140 rotates to throw out the filtered mass from the top of the central tube 130. The blocks are large lumps of mud and stones.
Into the tank 110, and the liquid flows upward under the restriction of the tank. The large broken stone and dregs sink due to density, and are pushed into the stone discharging groove 131 by the rotating rod 151 to be discharged. In the slurry floating process in the tank body, the upwelling speed of water and clay sand particles in the slurry is different, different density layering is formed in the longitudinal direction, and the slurry density during slurry discharge can be adjusted by adjusting the pressure of the pressurized slurry.
In order to stabilize the flowing direction and speed of the slurry in the longitudinal range, the flowing of the slurry entering the tank body needs to be limited, a separation net 170 is added, the separation net 170 is positioned at the middle lower part of the tank body 110, and the periphery of the separation net 170 is fixedly connected with the inner wall of the tank body 110;
a floating ball 200 is arranged between the separation net 170 and the bottom of the tank, and the floating ball 200 is a plastic hollow ball with density lower than that of water; the slurry of the floating ball 200 floats on the lower side of the separation net 170 and is accumulated downwards; the volume ratio of the floating ball 200 to the space under the separation net 170 is 1/4-3/4. The diameter of the floating ball 200 is 5-15 cm. The bottom end of the floating ball at the lowest part is higher than the highest point of the liquid outlet position at the bottom end of the central tube by the accumulation amount of the floating ball 200.
The floating ball 200 has three functions: 1. the impact of the slurry is buffered to enable the slurry to flow upwards, larger particles are contacted with the floating ball, and the floating ball are extruded and transposed to buffer the impact of the slurry and enable the slurry to flow upwards stably; 2. the slurry rotational flow is reduced, the floating ball buffers the horizontal flow of the slurry, the circumferential flow of the slurry is limited, the slurry integrally moves longitudinally, and the rotational flow is reduced; 3. keep apart the bold dregs upstream, the floater is piled up, forms the passageway of thick liquid upstream between the floater, and control floater size and accumulation volume can adjust the biggest upstream diameter of cubic material in the restriction thick liquid, and bold earth just can enter into upper space again after the thick liquid strikes, improves the thick liquid homogeneity.
Example two
In order to further stabilize the slurry upward flow direction and effectively control the slurry upward flow rate, a further improvement is that the slurry preparation tank 100 shown in fig. 2 further comprises an air pump 160, and the air pump 160 pumps air into the tank body 110 through an air inlet pipe 161; the air inlet pipe 161 is provided with through holes which are uniformly distributed, and the diameter of each through hole is not more than 2mm.
Of course, the air inlet tube 161 may be an annular tube to uniformly fill the slurry with air bubbles.
The bubbles form in the slurry for three reasons: 1. including rubble and clay in the slurry, separate fast in the limited jar body 110 in space to let the clay granule can come up to the design height fast, the degree of difficulty is great. After the bubbles are flushed, the bubbles have small diameters and high floating speed, can accelerate the floating of viscosity particles, and is convenient for extracting the required slurry in a proper area; 2. the bubbles float up quickly to guide the flow direction and longitudinal flow of the slurry forcibly, thereby avoiding the slurry from generating turbulence in the tank body and being beneficial to slurry layering; 3. the bubbles carrying clay particles float upwards, the longitudinal heights of a slurry suspension area and an expansion area formed by the self-upward flow of liquid in the prior art can be changed, and the diameter of the bubbles and the initial rate of entering slurry can be adjusted by adjusting the air inflow, the air flow rate and the aperture of a through hole of an air inlet pipe; because clay particles float upwards together with the bubbles, the required clay state can be concentrated in a certain area under the influence of the diameter and the floating rate of the bubbles, the physical and chemical states of the slurry can be conveniently controlled, and the quality is more accurate; therefore, under the condition that the space where the shield machine is located is limited, the required slurry can be obtained more effectively and rapidly. Essentially adding a means of controlling the quality of the slurry.
EXAMPLE III
The effect of the clay granule is attached to bubble come-up in the embodiment two, and the control degree of difficulty is great, because the bubble can combine at the come-up in-process, forms the bleb, can reduce and disturb the effect of attaching to the clay removal. Therefore, the addition of the material mixing balls 300 and the cooperation of the bubbles can ensure that the longitudinal partition of the slurry is more stable. As shown in fig. 3-4.
The material mixing ball 300 comprises a ball body 310 and air introducing rods 320, the air introducing rods 320 are uniformly distributed on the surface of the ball body 310, the axes of the air introducing rods 320 are vertical to the surface of the ball body 310, the air introducing rods 320 are uniformly fixed with feather rods 321, the included angle between the feather rods 321 and the axes of the air introducing rods 320 is 15-45 degrees, and the spare ends of the feather rods 321 point to the ball body 310;
the material mixing ball 300 can be suspended in the slurry or has a density larger than that of the slurry, but the material mixing ball 300 can float up by itself after air bubbles are adhered to the air guide rod 320.
The diameter of the sphere 310 is no greater than 5cm; the length of the air guide rod 320 is not more than 3cm; the length of the feather rod 321 is not more than 5mm; the number of the feather rods on each air guide rod 320 is not less than 10, and the distance between every two adjacent feather rods in the length direction of the air guide rods is not more than 3mm.
In order to stably float the mixing ball 300, the structure of the ball body is further improved. As shown in fig. 3.
The mixing ball 300 further comprises an eccentric block 330 and a gas storage cover 340; the eccentric block 330 is positioned in the sphere 310, so that the center of gravity of the sphere deviates from the center of the sphere and deviates to the position of the eccentric block;
the gas storage cover 340 is a spherical shell with a diameter larger than that of the sphere 310, the gas storage cover 340 is concentric with the sphere, and the gas storage cover 340 is fixed on the gas guiding rod 320; the opening of the gas storage cover 340 is circular, and the line connecting the center of gravity and the center of sphere 310 passes through the center of the opening of the gas storage cover 340; the air storage cover 340 is opened at the middle lower part of the sphere 310.
The air bubbles move up along the air entraining rod and enter the air storage cover 340, so that the material mixing ball 300 floats up. The size of the material mixing ball is fixed, and when the gas amount reaches the floating requirement, the floating rate is in a controllable range. Therefore, compared with the air bubbles, the clay particles are more favorable to be attached to form the clay slurry with specific density in a specific area. The controllability is stronger, and during actual operation, it is only enough to control mainly air input and mix the material ball quantity.
Example four
In order to accurately extract the slurry with the required density, a device for extracting the slurry is further improved. As shown in fig. 2-6.
The slurry feeding device further comprises a feeding assembly 600, wherein the feeding assembly comprises a hose 610 and a slurry feeding part 620, the hose 610 is located in the tank body 110, and one end of the hose 610 is communicated with a liquid outlet;
the other end of the hose 610 is fixed with the pulp inlet part 620;
the slurry inlet part 620 comprises a buoyancy part, and the density of the buoyancy part can be adjusted or replaced as required, so that the buoyancy part drives the feed port of the hose 610 to float in the slurry height range with required density.
Therefore, slurry with required density can be accurately pumped, and grouting quality is convenient to control.
One implementation way is as follows: the slurry inlet part 620 comprises a floating block 621, a slurry inlet 622, an inner pipe 623 and a connecting pipe 624;
the floating block 621 is cylindrical, the inner part of the floating block is hollow, two ends of the floating block are opened to form a slurry inlet 622, the inner tube 623 is coaxially and rotatably connected with the cylindrical hole in the floating block, the center of the inner tube 623 is communicated with the connecting tube 624, and the connecting tube is communicated with the hose 610. As shown in fig. 4-5.
In a second implementation manner, the floating ring 625 is communicated with a liquid adjusting pipe 641, the liquid adjusting pipe 641 is communicated with a liquid adjusting pump 640, and the liquid adjusting pump 640 injects liquid into the floating ring 625 and extracts the liquid through the liquid adjusting pipe 641, so as to adjust the gravity of the floating ball 625, and further adjust the up-down height position of the floating ball in the grout;
the feeding ring 626 is fixedly connected with the floating ring 625 through a pull rope 627; the inner side surface of the feeding ring 626 is provided with a plurality of feeding holes, the feeding ring 626 is communicated with a material guiding ring 630 fixed outside the tank body 110 through a hose 610, and the material guiding ring 630 is communicated with a material discharging pipe 181.
The pumped slurry enters the transition tank 400, and negative pressure is formed in the transition tank 400 by the negative pressure pump 500, so that bubbles in the slurry are broken and discharged. And the negative pressure vacuum degree is adjusted according to the actual condition of the slurry.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A slurry circulation preparation grouting system behind shield slag soil wall comprises a slag discharge pipeline and a slurry preparation tank (100), wherein the slag discharge pipeline discharges shield slag soil into the slurry preparation tank (100),
the slurry preparation tank (100) comprises a tank body (110), a liquid inlet pipe (120), a central pipe (130), a rotating disc (140) and a power part (150);
the tank body (110) is used for containing slurry;
the liquid inlet pipe (120) is communicated with a slag discharge pipeline;
the central pipe (130) is vertically fixed on the inner bottom surface of the tank body (110), and the top end and the bottom end of the central pipe (130) are made of a screen;
the rotating disc (140) is in an inverted frustum shape, the inner side face of the bottom end of the rotating disc is in rotating and sealing connection with the outer side face of the central tube (130), and the upper side of the rotating connection position of the central tube (130) is provided with a screen;
the outer side face of the top edge of the rotating disc (140) is meshed with a gear driven by a motor of the power part (150), and the power part (150) drives the rotating disc (140) to rotate, so that blocks which do not enter the central tube (130) are thrown out of the rotating disc;
the middle part of the central pipe (130) is provided with a booster pump, and the slurry entering the central pipe (130) is pressurized to enter the tank body (110) from the bottom end of the central pipe (130).
2. The shield-tunneling-slurry-wall-behind-slurry circulating preparation and grouting system according to claim 1, further comprising a separation net (170), wherein the separation net (170) is positioned at the middle lower part of the tank body (110), and the periphery of the separation net (170) is fixedly connected with the inner wall of the tank body (110); the central pipe (130) passes through the separation net (170);
a floating ball (200) is arranged between the separation net (170) and the bottom of the tank, and the floating ball (200) is a plastic hollow ball with density lower than that of water; the floating ball (200) floats on the lower side surface of the separation net (170) and is accumulated downwards; the volume ratio of the floating ball (200) to the space at the lower side of the separation net (170) is 1/4-3/4.
3. The system for preparing and grouting slurry for the shield residual soil wall back circulation of the shield according to claim 2, characterized in that the diameter of the floating ball (200) is 5-15 cm.
4. The shield residual soil wall rear slurry circulation preparation grouting system according to claim 2, characterized in that the floating balls (200) are piled up in such an amount that the bottom ends of the lowest floating balls are higher than the upper ends of the screens at the bottom ends of the central pipes (130).
5. The shield-tunneling-slurry-wall rear-slurry circulating preparation grouting system according to claim 2, characterized in that the slurry preparation tank (100) further comprises an air pump (160), and the air pump (160) pumps air to the bottom of the tank body (110) through an air inlet pipe (161); the air inlet pipe (161) is provided with through holes which are uniformly distributed, and the diameter of each through hole is not more than 2mm.
6. The system for preparing and grouting the shield residual soil wall post-slurry circulation of the claim 2 is characterized in that a material mixing ball (300) is placed in a space above the separation net (170), and the material mixing ball comprises a ball body (310) and an air entraining rod (320);
the diameter of the sphere (310) is not more than 5cm; the length of the air guide rod (320) is not more than 3cm; the length of the feather rod (321) is not more than 5mm; the number of the feather rods on each air guide rod (320) is not less than 10, and the distance between every two adjacent feather rods in the length direction of the air guide rods is not more than 3mm; the empty end of the feather rod points to the sphere (310), and the included angle between the feather rod and the air entraining rod (320) is 15-45 degrees.
7. The system for preparing and grouting slurry behind the shield muck wall in a circulating way according to claim 6, wherein the material mixing ball (300) further comprises an eccentric block (330) and a gas storage cover (340); the eccentric block (330) is positioned in the sphere (310), so that the gravity center of the sphere deviates from the sphere center and deviates to the position of the eccentric block;
the gas storage cover (340) is a spherical shell with the diameter larger than that of the sphere (310), the gas storage cover (340) is concentric with the sphere, and the gas storage cover (340) is fixed on the gas guide rod (320); the opening of the gas storage cover (340) is circular, and the line connecting the center of gravity and the center of sphere of the sphere (310) passes through the center of the circle of the opening of the gas storage cover (340); the opening of the air storage cover (340) is positioned at the middle lower part of the sphere (310).
8. The system for preparing and grouting slurry for the shield residual soil wall after circulation of slurry is characterized by further comprising a feeding assembly (600), wherein the feeding assembly comprises a hose (610) and a slurry inlet part (620), the hose (610) is positioned in the tank body (110), and one end of the hose (610) is communicated with the discharge pipe (181);
the other end of the hose (610) is fixed with the pulp inlet part (620);
advance thick liquid portion (620) including buoyancy portion, the density of buoyancy portion can be adjusted as required or change, makes the buoyancy portion drive the feed inlet of hose (610) float in the thick liquid height scope of required density.
9. The shield-driven slurry circulation preparation grouting system behind the slag-soil wall as recited in claim 8, characterized in that the slurry inlet part (620) comprises a floating block (621), a slurry inlet (622), an inner pipe (623) and a connecting pipe (624);
the floating block (621) is cylindrical, the inside of the floating block is hollow, two ends of the floating block are opened to form a pulp inlet (622), the inner pipe (623) is coaxially and rotatably connected with the cylindrical hole in the floating block, the center of the inner pipe (623) is communicated with a connecting pipe (624), and the connecting pipe is communicated with the hose (610);
the floating block (621) is the buoyancy part.
10. The shield-tunneling-slurry-wall-behind-slurry circulation preparation and grouting system according to claim 8, characterized in that,
the slurry inlet part (620) comprises a floating ring (625), a feeding ring (626), a pull rope (627), a material guiding ring (630) and a liquid mixing pump (640);
the floating ring (625) is communicated with a liquid adjusting pipe (641), the liquid adjusting pipe (641) is communicated with a liquid adjusting pump (640), and the liquid adjusting pump (640) injects liquid into the floating ring (625) and extracts the liquid through the liquid adjusting pipe (641), so that the gravity of the floating ball (625) is adjusted, and the upper and lower height positions of the floating block in the slurry are adjusted; the floating ring (625) is the buoyancy part;
the feeding ring (626) is fixedly connected with the floating ring (625) through a pull rope (627); a plurality of feed inlets are formed in the inner side face of the feed ring (626), the feed ring (626) is communicated with a material guide ring (630) fixed outside the tank body (110) through a hose (610), and the material guide ring (630) is communicated with a material discharge pipe (181).
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| CN207122312U (en) * | 2017-09-11 | 2018-03-20 | 北京市常青市政工程有限公司 | Take out slurry filter |
| CN208777993U (en) * | 2018-07-30 | 2019-04-23 | 中国地质大学（武汉） | It is a kind of for simulate earth pressure balanced shield, EPBS construction in soil improvement experimental rig |
| CN109865733A (en) * | 2019-03-07 | 2019-06-11 | 湖南大学 | A kind of system and method for shield dregs in-situ processing and recycling |
| CN110242326A (en) * | 2019-06-17 | 2019-09-17 | 中交第三公路工程局有限公司 | The grouting device of tunnel mud |
| CN110252778A (en) * | 2019-07-18 | 2019-09-20 | 深圳市洪桦环保科技有限公司 | Shield landwaste recycling and reusing system and method |
| CN215549768U (en) * | 2021-09-01 | 2022-01-18 | 河南晟德公路工程建设有限公司 | Grouting device for bridge construction |
| CN216026109U (en) * | 2021-08-16 | 2022-03-15 | 中铁十八局集团有限公司 | Tunnel shield constructs construction dregs screening plant |
| CN114439494A (en) * | 2022-02-28 | 2022-05-06 | 中电建十一局工程有限公司 | A mud-water separation recycle system for slurry shield constructs |
| CN114474404A (en) * | 2022-01-05 | 2022-05-13 | 中铁第四勘察设计院集团有限公司 | System and method for preparing grouting material by using shield muck |
| CN216726012U (en) * | 2021-11-04 | 2022-06-14 | 济南重工集团有限公司 | Shield constructs quick-witted bentonite thick liquid filter equipment |
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2023
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| CN101219560A (en) * | 2008-01-15 | 2008-07-16 | 山东金塔建设有限公司 | Serum pulping method and pulping equipment |
| CN101270576A (en) * | 2008-03-25 | 2008-09-24 | 广厦建设集团有限责任公司 | Secondary segmenting slip casting method for miniature pile |
| CN207122312U (en) * | 2017-09-11 | 2018-03-20 | 北京市常青市政工程有限公司 | Take out slurry filter |
| CN208777993U (en) * | 2018-07-30 | 2019-04-23 | 中国地质大学（武汉） | It is a kind of for simulate earth pressure balanced shield, EPBS construction in soil improvement experimental rig |
| CN109865733A (en) * | 2019-03-07 | 2019-06-11 | 湖南大学 | A kind of system and method for shield dregs in-situ processing and recycling |
| CN110242326A (en) * | 2019-06-17 | 2019-09-17 | 中交第三公路工程局有限公司 | The grouting device of tunnel mud |
| CN110252778A (en) * | 2019-07-18 | 2019-09-20 | 深圳市洪桦环保科技有限公司 | Shield landwaste recycling and reusing system and method |
| CN216026109U (en) * | 2021-08-16 | 2022-03-15 | 中铁十八局集团有限公司 | Tunnel shield constructs construction dregs screening plant |
| CN215549768U (en) * | 2021-09-01 | 2022-01-18 | 河南晟德公路工程建设有限公司 | Grouting device for bridge construction |
| CN216726012U (en) * | 2021-11-04 | 2022-06-14 | 济南重工集团有限公司 | Shield constructs quick-witted bentonite thick liquid filter equipment |
| CN114474404A (en) * | 2022-01-05 | 2022-05-13 | 中铁第四勘察设计院集团有限公司 | System and method for preparing grouting material by using shield muck |
| CN114439494A (en) * | 2022-02-28 | 2022-05-06 | 中电建十一局工程有限公司 | A mud-water separation recycle system for slurry shield constructs |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115721974A (en) | 2023-03-03 |
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