Deep soft soil solidification device

Abstract

The utility model discloses a deep soft soil solidifying device which comprises pulping equipment used for preparing first slurry; the first storage tank and the second storage tank are respectively used for storing an exciting agent and a water absorbent; the feeding device is installed on an excavating arm of mechanical equipment, the feeding device is communicated with the pulping equipment through a mortar conveying hose, and a first mortar conveying opening and a second mortar conveying opening are formed in the feeding device; the first material storage tank and the second material storage tank are communicated with the first ash feeding port and the second ash feeding port through a first hose and a second hose respectively, and the first slurry is conveyed into deep soft soil through a feeding device and is sequentially mixed with an exciting agent and a water absorbent in the conveying process. According to the utility model, the soft soil curing agent can be smoothly injected into the deep soft soil.

Description

Technical Field

[0001] The utility model relates to the technical field of soft soil foundation treatment, and more specifically, to a deep soft soil solidification device. Background Art

[0002] Soft soil stratum solidification refers to the use of certain process methods for soft soil foundations, which uses a curing agent to improve the physical and mechanical properties of the soft soil so that it has better bearing capacity and stability. At present, for deep soft soil solidification construction, the curing agent main agent is first mixed with water and admixtures in a certain ratio to form a first slurry, and then the first slurry, activator and water absorbent are evenly mixed and transported to the deep soft soil through a curing device. However, due to the characteristics of the curing agent main agent, it will quickly react chemically when it comes into contact with the activator, resulting in increased viscosity of the curing agent main agent slurry, poor slurry fluidity, and short initial setting time. It is easy to coagulate before being injected into the deep soft soil, causing pipe blockage and making it impossible to smoothly transport the soft soil curing agent into the deep soft soil. Therefore, it is urgently needed to provide a deep soft soil solidification device to smoothly inject the soft soil curing agent into the deep soft soil. Summary of the Invention

[0003] Another object of the present invention is to provide a deep soft soil solidification device, which can smoothly inject soft soil solidifying agent into the deep soft soil.

[0004] In order to achieve these purposes and other advantages according to the present invention, a deep soft soil solidification device is provided, comprising:

[0005] a pulping device for preparing a first slurry;

[0006] The first storage tank and the second storage tank are used to store the stimulator and the water absorbent respectively;

[0007] A feeding device is installed on the excavation arm of the mechanical equipment. The feeding device is connected to the pulping equipment through a slurry delivery hose. The feeding device is provided with a first ash delivery port and a second ash delivery port. The first storage tank and the second storage tank are respectively connected to the first ash delivery port and the second ash delivery port through a first hose and a second hose. The first slurry is transported to the deep soft soil through the feeding device and is mixed with the activator and the water absorbent in sequence during the transportation process.

[0008] Preferably, the pulping equipment includes a pulping tank, a third storage tank, a fourth storage tank and a water tank, the third storage tank is used to store the main curing agent, the fourth storage tank is used to store the additive, the third storage tank, the fourth storage tank and the water tank are all connected to the pulping tank, and a stirring shaft is provided in the pulping tank.

[0009] Preferably, the third material storage tank and the fourth material storage tank are connected to the pulping tank via a first material conveyor and a second material conveyor respectively.

[0010] Preferably, the feeding device comprises:

[0011] A material conveying bucket is fixedly arranged at the end of the excavating arm of the mechanical equipment, a spiral shaft is installed in the interior of the material conveying bucket along its axial direction, a feed port is opened at the upper part of the material conveying bucket, and a discharge port is opened at the lower part, the feed port is connected to the slurry delivery hose, the first ash delivery port and the second ash delivery port are opened on the side wall of the material conveying bucket, and the second ash delivery port is arranged near the discharge port;

[0012] A stirring head is installed at the bottom of the material conveying barrel. A grouting pipe is embedded in the stirring head. The grouting pipe is connected to the discharge port. The soft soil curing agent in the material conveying barrel is injected into the deep soft soil through the grouting pipe. The stirring head is used to stir the soft soil curing agent and the deep soft soil.

[0013] Preferably, the discharge end of any hose is fixedly connected to the corresponding ash delivery port, and a sliding assembly is installed at any ash delivery port, and the sliding assembly includes:

[0014] Two slide rails are symmetrically installed on both sides of the ash delivery port, and a cover plate is slidably provided on the slide rails. The top of the cover plate is provided with an arc-shaped groove, and the hose is located in the arc-shaped groove. There is a gap between the inner side wall of the cover plate and the outer side wall of the material delivery barrel, which is used to accommodate the hose;

[0015] A take-up wheel is installed on the top of the material conveying cylinder, the take-up wheel is connected to the top of the cover plate through a steel wire rope, and the take-up wheel drives the cover plate to slide on the slide rail through the steel wire rope;

[0016] Two return springs are symmetrically mounted on both sides of the top of the cover plate, one end of each return spring is connected to the cover plate, and the other end is connected to the outer wall of the material conveying barrel;

[0017] When the return spring is in an extended state, the inner wall of the arc groove contacts the outer wall of the hose, and the hose is connected to the ash delivery port; when the take-up wheel is driven to reel in the wire rope and squeeze the return spring to drive the cover plate to move up, the hose is stuck in the gap between the cover plate and the material conveying barrel, and the hose is not connected to the ash delivery port.

[0018] Preferably, the distance between the first ash delivery port and the discharge port is 0.4-0.6 m.

[0019] The present invention includes at least the following beneficial effects: based on the characteristics of the main curing agent, the present invention uses a feeding device to transport the first slurry into the soft soil. During the transportation of the first slurry, the activator and the water absorbent are respectively transported to the feeding device through the first ash delivery port and the second ash delivery port in sequence to mix with the first slurry, delaying the mixing time of the first slurry, the activator and the water absorbent, thereby achieving the purpose of injecting the slurry into the deep soft soil before initial setting, and avoiding the phenomenon of pipe blockage.

[0020] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the layout structure of a pulping device according to one embodiment of the present utility model;

[0022] Figure 2 This is a schematic structural diagram of the feeding device of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the cover plate and the return spring of the utility model;

[0024] Figure 4 This is a schematic diagram of the installation position of the feeding device of the utility model;

[0025] 1. Mechanical equipment, 101. Excavating arm, 2. Pulping equipment, 201. Pulping tank, 202. Third storage tank, 203. Fourth storage tank, 204. First storage tank, 205. Second storage tank, 206. First material conveyor, 207. Second material conveyor, 208. Water tank, 209. Agitator shaft, 2010. Slurry hose, 2011. First hose, 2012. Second hose, 3. Feeding device, 301. Material conveying barrel, 302. Screw shaft, 303. First ash delivery port, 304. Second ash delivery port, 305. Agitator head, 306. Feed port, 4. Cover plate, 401. Arc groove, 402. Take-up wheel, 403. Wire rope, 404. Return spring. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] It should be noted that, in the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1-4 As shown, the utility model provides a deep soft soil solidification device, comprising:

[0029] a pulping device 2 for preparing a first pulp;

[0030] The first storage tank 204 and the second storage tank 205 are used to store the stimulator and the water absorbent respectively;

[0031] The feeding device 3 is installed on the excavating arm 101 of the mechanical equipment 1. The feeding device 3 is connected to the pulping equipment 2 through the slurry delivery hose 2010. The feeding device 3 is provided with a first ash delivery port 303 and a second ash delivery port 304. The first storage tank 204 and the second storage tank 205 are respectively connected to the first ash delivery port 303 and the second ash delivery port 304 through the first hose 2011 and the second hose 2012. The first slurry is transported to the deep soft soil through the feeding device 3 and is mixed with the activator and the water absorbent in sequence during the transportation process.

[0032] In the above technical solution, if Figure 1 、 Figure 2As shown, the first slurry, the activator and the water absorbent enter the feeding device 3 through the slurry delivery hose 2010, the first hose 2011 and the second hose 2012 respectively; the process of using the deep soft soil solidification device of the present invention to transport the curing agent is as follows: the feeding device 3 is driven by the excavation arm to penetrate into the deep soft soil, and the first slurry is first transported to the feeding device 3, and then transported to the deep soft soil through the feeding device 3. In the process of transporting the first slurry to the soft soil, the timing of transporting the activator and the water absorbent to the feeding device 3 is controlled to achieve the purpose of delaying the mixing of the curing agent main agent with the activator and the water absorbent. The first slurry is first mixed with the activator in the feeding device 3. Mixing, stimulating its activity through the stimulator, at the same time, because the admixture can prolong the initial setting time of the slurry after the curing agent main agent and the stimulator are mixed, the slurry will not coagulate immediately, and the extended initial setting time is used to provide time for the soft soil curing agent to be injected into the deep soft soil, and the soft soil curing agent is injected into the deep soft soil before the slurry coagulates. Compared with the traditional method of mixing the various components of the soft soil curing agent and then transporting it, the utility model mixes it with the stimulator and the water absorbent separately during the transportation of the first slurry, shortening the reaction time of the curing agent main agent and the stimulator, and using the initial setting time extended by the admixture to smoothly inject the soft soil curing agent into the deep soft soil without causing pipe blockage. Figure 4 As shown, the feeding device 3 is installed on the excavating arm 101 of the mechanical equipment 1. The existing equipment on the construction site can be used to improve it so that the equipment can be used for deep soft soil solidification without the need for additional new equipment, and the equipment cost is low.

[0033] In another technical solution, the pulping equipment 2 includes a pulping tank 201, a third storage tank 202, a fourth storage tank 203 and a water tank 208, wherein the third storage tank 202 is used to store the main curing agent, and the fourth storage tank 203 is used to store the admixture. The third storage tank 202, the fourth storage tank 203 and the water tank 208 are all connected to the pulping tank 201, and a stirring shaft 209 is provided in the pulping tank 201;

[0034] The third storage tank 202 and the fourth storage tank 203 are connected to the pulping tank 2 through a first material conveyor 206 and a second material conveyor 207 respectively.

[0035] In this technical solution, if Figure 1 As shown, the curing agent main agent stored in the third storage tank 202, the additive stored in the fourth storage tank 203, and the water stored in the water tank 208 are sequentially fed into the slurry tank 201 according to the ratio through the first material conveyor 206, the second material conveyor 207 and the water pipe, and are mixed and stirred by the stirring shaft 209 to obtain the first slurry.

[0036] In another technical solution, the feeding device 3 includes:

[0037] The material conveying barrel 301 is fixedly arranged at the end of the excavating arm 101 of the mechanical equipment 1. A screw shaft 302 is installed axially inside the material conveying barrel 301. A feed port 306 is provided at the upper portion of the material conveying barrel 301, and a discharge port is provided at the lower portion. The feed port 306 is communicated with the slurry delivery hose 2010. The first ash delivery port 303 and the second ash delivery port 304 are provided on the side wall of the material conveying barrel 301, and the second ash delivery port 304 is provided near the discharge port.

[0038] The stirring head 305 is installed at the bottom of the material conveying barrel 301. A grouting pipe is embedded in the stirring head 305. The grouting pipe is connected to the discharge port. The soft soil curing agent in the material conveying barrel 301 is injected into the deep soft soil through the grouting pipe. The stirring head 305 is used to stir the soft soil curing agent and the deep soft soil.

[0039] In this technical solution, if Figure 2 、 Figure 4 As shown, the feeding device 3 is composed of a material conveying barrel 301 and a screw shaft 302. The screw shaft 302 is used to transport and mix the materials entering the material conveying barrel 301. The screw shaft 302 is driven to rotate by a motor. The connection part between the excavating arm 101 and the material conveying barrel 301 has a mounting groove for accommodating the motor. The process of conveying slurry by the feeding device 3 is as follows: the first slurry enters the material conveying barrel 301 through the slurry conveying hose 2010 and the feed port 306, and is transported toward the discharge port through the screw shaft 302. During the transportation process, the activator enters the material conveying barrel 301 through the first hose 2011 and the first ash delivery port 303 and is connected to the first slurry. After the slurry is mixed, it continues to be transported under the action of the spiral shaft 302. Then the water absorbent enters the material conveying barrel 301 through the second hose 2012 and the second ash delivery port 304, is mixed with the first slurry and the activator, and is injected into the deep soft soil through the discharge port and the grouting pipe. At the same time, the stirring head 305 at the bottom of the material conveying barrel 301 stirs it with the deep soft soil, thereby achieving the solidification treatment of the deep soft soil; the spiral shaft 302 conveys materials with the same working principle as the screw conveyor; in order to avoid the shaking of the slurry hose 2010, the first hose 2011 and the second hose 2012 during the construction process and causing interference to the construction, they can be tied to the excavation arm 101 through fixings.

[0040] In another technical solution, the discharge end of any hose is fixedly connected to the corresponding ash delivery port, and a sliding assembly is installed at any ash delivery port, and the sliding assembly includes:

[0041] Two slide rails are symmetrically installed on both sides of the ash delivery port. A cover plate 4 is slidably provided on the slide rails. An arc-shaped groove 401 is provided on the top of the cover plate 4. The hose is located in the arc-shaped groove 401. There is a gap between the inner side wall of the cover plate 4 and the outer side wall of the material delivery barrel 301, which is used to accommodate the hose.

[0042] A take-up wheel 402 is mounted on the top of the material conveying cylinder. The take-up wheel 402 is connected to the top of the cover plate 4 via a steel wire rope 403. The take-up wheel 402 drives the cover plate 4 to slide on the slide rail via the steel wire rope 403.

[0043] Two return springs 404 are symmetrically mounted on both sides of the top of the cover plate 4 , with one end of each return spring 404 connected to the cover plate 4 and the other end connected to the outer wall of the material delivery barrel 301 ;

[0044] When the return spring 404 is in an extended state, the inner wall of the arc groove 401 contacts the outer wall of the hose, and the hose is connected to the ash delivery port; when the driving wheel 402 reels in the wire rope 403 and squeezes the return spring 404 to drive the cover plate 4 to move upward, the hose is stuck in the gap between the cover plate 4 and the material conveying barrel 301, and the hose is not connected to the ash delivery port.

[0045] In this technical solution, if Figure 2 , the sliding assembly is used to realize the closing and opening of the ash delivery port, thereby controlling the timing of putting the activator and the water absorbent into the material delivery barrel 301. Specifically: in the initial state, the wire rope 403 on any take-up wheel 402 is in a tightened state. At this time, the return spring 404 is compressed, and the discharge end of the hose is squeezed into the gap between the cover plate 4 and the material delivery barrel 301. The ash delivery ports are all in a closed state, and the first slurry enters the material delivery barrel 301 and is transported toward the discharge port. When it is transported to the vicinity of the first ash delivery port 303, the corresponding take-up wheel 402 is controlled to relax the wire rope 403, and the return spring 404 is in an extended state. Under the action of the return spring 404, the cover plate 4 moves down to the inner side wall of the arc groove 401 and contacts the first hose 2011 but does not squeeze the first hose 2011. Figure 3As shown, at this time, the first ash delivery port 303 is connected to the discharge end of the first hose 2011, the stimulator enters the material delivery barrel 301 and mixes with the first slurry. When the mixed slurry is delivered to the vicinity of the second ash delivery port 304, the cover plate 4 at the second ash delivery port 304 is controlled to move downward by the corresponding take-up wheel 402, wire rope 403 and return spring 404, and the second ash delivery port 304 is connected to the second hose 2012, and the water absorbent is added to the material delivery barrel 301; the sliding component is used to control the timing of opening the corresponding ash delivery port, thereby controlling the mixing time of the first slurry, the stimulator and the water absorbent, which can avoid the stimulator and the water absorbent from mixing. The water agent is added to the material conveying barrel 301 in advance, causing the first slurry to react with the stimulator and the water absorbent in advance, and coagulating before being injected into the deep soft soil, causing pipe blockage. At the same time, it can also avoid the stimulator and the water absorbent being added to the material conveying barrel 301 too late, so that the stimulator and the first slurry are not yet reacted before being conveyed into the soft soil, affecting the solidification effect; the timing of material input is controlled by the sliding component, the structure is simple, and the manufacturing cost is low; the take-up wheel 402 can use an electric take-up drum, which is connected to the control unit to realize automatic control; the installation position of the take-up wheel 402 and the installation position of the motor do not interfere with each other.

[0046] In another technical solution, the distance between the first ash delivery port 303 and the discharge port is 0.4-0.6 m.

[0047] In this technical solution, after multiple tests by construction personnel, the distance between the setting position of the first ash delivery port 303 and the discharge port is controlled between 0.4 and 0.6 m, which can ensure that the activator and the first slurry do not coagulate before being injected into the deep soft soil, and the hydration reaction is sufficient to ensure the solidification effect.

[0048] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A deep soft soil solidification device, characterized in that: include: a pulping device for preparing a first slurry; The first storage tank and the second storage tank are used to store the stimulator and the water absorbent respectively; A feeding device is installed on the excavation arm of the mechanical equipment. The feeding device is connected to the pulping equipment through a slurry delivery hose. A first ash delivery port and a second ash delivery port are provided on the feeding device. The first storage tank and the second storage tank are connected to the first ash delivery port and the second ash delivery port respectively through a first hose and a second hose. The first slurry is transported to the deep soft soil through the feeding device and is mixed with the activator and the water absorbent in sequence during the transportation process.

2. The deep soft soil solidification device according to claim 1, characterized in that: The pulping equipment includes a pulping tank, a third storage tank, a fourth storage tank and a water tank. The third storage tank is used to store the main curing agent, and the fourth storage tank is used to store the additive. The third storage tank, the fourth storage tank and the water tank are all connected to the pulping tank, and a stirring shaft is provided in the pulping tank.

3. The deep soft soil solidification device according to claim 2, characterized in that: The third material storage tank and the fourth material storage tank are communicated with the pulping tank via a first material conveyor and a second material conveyor, respectively.

4. The deep soft soil solidification device according to claim 1, characterized in that: The feeding device comprises: A material conveying bucket is fixedly arranged at the end of the excavating arm of the mechanical equipment, a spiral shaft is installed in the interior of the material conveying bucket along its axial direction, a feed port is opened at the upper part of the material conveying bucket, and a discharge port is opened at the lower part, the feed port is connected to the slurry delivery hose, the first ash delivery port and the second ash delivery port are opened on the side wall of the material conveying bucket, and the second ash delivery port is arranged near the discharge port; A stirring head is installed at the bottom of the material conveying barrel. A grouting pipe is embedded in the stirring head. The grouting pipe is connected to the discharge port. The soft soil curing agent in the material conveying barrel is injected into the deep soft soil through the grouting pipe. The stirring head is used to stir the soft soil curing agent and the deep soft soil.

5. The deep soft soil solidification device according to claim 4, characterized in that: The discharge end of any hose is fixedly connected to the corresponding ash delivery port, and a sliding assembly is installed at any ash delivery port, and the sliding assembly includes: Two slide rails are symmetrically installed on both sides of the ash delivery port, and a cover plate is slidably provided on the slide rails. The top of the cover plate is provided with an arc-shaped groove, and the hose is located in the arc-shaped groove. There is a gap between the inner side wall of the cover plate and the outer side wall of the material delivery barrel, which is used to accommodate the hose; A take-up wheel is installed on the top of the material conveying barrel, the take-up wheel is connected to the top of the cover plate through a steel wire rope, and the take-up wheel drives the cover plate to slide on the slide rail through the steel wire rope; Two return springs are symmetrically mounted on both sides of the top of the cover plate, one end of each return spring is connected to the cover plate, and the other end is connected to the outer wall of the material conveying barrel; When the return spring is in an extended state, the inner wall of the arc groove contacts the outer wall of the hose, and the hose is connected to the ash delivery port; when the take-up wheel is driven to reel in the wire rope and squeeze the return spring to drive the cover plate to move up, the hose is stuck in the gap between the cover plate and the material conveying barrel, and the hose is not connected to the ash delivery port.

6. The deep soft soil solidification device according to claim 4, characterized in that: The distance between the first ash delivery port and the discharge port is 0.4-0.6 m.

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