CN212294615U - Grouting device for karst area of foundation pit - Google Patents

Abstract

The utility model discloses a slip casting device for foundation ditch karst district includes: the device comprises a metal net, a water stop plate, a grouting pipe, a water pumping pipe and a one-way communication device; the metal net covers the water outlet of the karst area; the edge of the water stop plate is fixedly connected with the edge of the water outlet of the karst area, the water stop plate does not completely cover the water outlet of the karst area, and the metal net is positioned between the water stop plate and the water outlet of the karst area; the water pumping pipe is used for pumping water in the karst area, and one end of the water pumping pipe penetrates through the metal net and is arranged in the karst area; the side wall of the grouting pipe is provided with a first connecting end with a plurality of internal threads; one end of the one-way communication device is a second connecting end provided with external threads, the second connecting end is connected with the first connecting end thread pair, and the one-way communication device is used for guiding slurry out to the metal net and forming a plugging wall; the utility model discloses can eliminate the risk that foundation ditch karst district gushed water fast, solve in the construction thick liquid be difficult to pour into, karst water suck-back difficult problem, present the shutoff in karst region, practiced thrift the engineering investment, ensured construction safety.

Description

Grouting device for karst area of foundation pit

Technical Field

The utility model relates to a foundation ditch construction slip casting field especially relates to a slip casting device for foundation ditch karst district.

Background

When a karst area foundation pit is excavated, karst water is extremely unevenly distributed and is difficult to detect, water inrush accidents are extremely easy to happen when the foundation pit is excavated, if the specific position and area of the karst water distribution cannot be detected during excavation, and under the condition that effective protection measures are not taken for a water inrush opening, a construction site is often submerged, machines and tools are destroyed, equipment and personnel accidents are caused, the construction period is delayed, and the engineering investment is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a slip casting device for foundation ditch karst district to overcome above-mentioned technical problem.

The utility model provides a slip casting device for foundation ditch karst district, include: the device comprises a metal net, a water stop plate, a grouting pipe, a water pumping pipe and a one-way communication device for leading out slurry;

the metal net covers the water outlet of the karst area; the edge of the water stop plate is fixedly connected with the edge of the karst area water outlet, the water stop plate does not completely cover the karst area water outlet, and the metal mesh is positioned between the water stop plate and the karst area water outlet;

the water pumping pipe is used for pumping water in the karst area, one end of the water pumping pipe penetrates through the metal net, and the other end of the water pumping pipe is arranged in the karst area;

the side wall of the grouting pipe is provided with a first connecting end with a plurality of internal threads;

the one-way communication device end is a second connecting end provided with an external thread, the second connecting end is connected with the first connecting end through a thread pair, and the one-way communication device is used for guiding slurry out of the metal mesh to form a plugging wall.

Further, the one-way communication device includes: an outer member, an inner member, a spring, and a base;

the second connecting end is arranged at one end of the outer member, the outer member is hollow, and the outer member is connected with the base in a sealing mode;

the inner member is arranged in the outer member, one end of the inner member, which is close to the second connecting end, is communicated with the outside, and the other end of the inner member is connected with the base through a spring;

the side walls of the outer member and the inner member are respectively provided with a plurality of first slurry outlets and a plurality of second slurry outlets; the inner member moves towards the base under the pressure of the slurry and compresses the spring at the same time, the plurality of second slurry outlets coincide with the plurality of first slurry outlets, and the slurry flows out.

Further, still include: and the magnet is used for fixing the one-way communication device on the metal net and is fixedly connected with the outer side wall of the one-way communication device.

Further, still include: and a water pumping pipe for pumping out water in the karst area, wherein one end of the water pumping pipe penetrates through the water pumping pipe and is arranged in the karst area.

Further, the inner member outer diameter is equal to the outer member inner diameter.

The other end of the outer component is provided with an external thread; the base is provided with internal threads and is in threaded pair connection with the other end of the outer member.

Further, the space between the first slurry outlets is equal to the space between the second slurry outlets.

The utility model discloses can eliminate the risk that foundation ditch karst district gushed water fast, for current slip casting structure, solved in the construction thick liquid be difficult to pour into, karst water suck-back difficult problem, effectively realized the shutoff in karst region, the construction is effectual to the engineering investment has been practiced thrift, construction safety has been ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of the embodiment of the present invention applied in a foundation pit;

fig. 2 is an enlarged view of a in fig. 1 according to an embodiment of the present invention;

fig. 3 is a perspective view of the embodiment of the present invention shown in fig. 2;

FIG. 4 is a schematic view of the combination of the grouting pipe and the one-way communication device according to the embodiment of the present invention;

FIG. 5 is a schematic structural view of a grouting pipe according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a one-way communication device according to an embodiment of the present invention;

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a slip casting device for foundation ditch karst district, as shown in fig. 1-3, include: the device comprises a metal net 3, a water stop plate 4, a grouting pipe 1 and a one-way communication device 5; the metal net 3 covers a water outlet 7.1 of the karst area 7; the edge of a stainless steel water stop plate 4 is fixedly connected with the edge of a water outlet 7.1 of the karst area 7 through a bolt 8, the water stop plate 4 does not completely cover the water outlet 7.1 of the karst area 7, a gap is reserved between the top edge of the water stop plate and the top of the karst area in order to prevent water in the karst area from flowing out, a grouting pipe 1 and a one-way communication device 5 extend into the karst area, the metal net 3 is positioned between the water stop plate 4 and the water outlet 7.1 of the karst area 7, and the metal net 3 is fixed at the water outlet 7.1 of the karst area 7 through the extrusion of the water stop plate 4;

as shown in fig. 5, one end of the grouting pipe 1 is opened for injecting grout into the interior, and the sidewall of the grouting pipe 1 is provided with a first connection end 1-1 with a plurality of internal threads;

as shown in fig. 6, one end of the one-way communication device 5 is a second connection end 5-1 provided with an external thread, the second connection end 5-1 is connected with the first connection end 1-1 through a thread pair, and the one-way communication device 5 is used for guiding out slurry to the metal mesh 3 to form a plugging wall.

Further, the one-way communication device 5 includes: an outer member 5-2, an inner member 5-3, a spring 5-4 and a base 5-5; the second connecting end 5-1 is arranged at one end of the outer member 5-2, the outer member 5-2 is hollow, and the other end of the outer member 5-2 is provided with an external thread; the base 5-5 is provided with internal threads and is connected with the thread pair at the other end of the outer member 5-2, so that the outer member 5-2 is closed and can be disassembled at the same time, and the inside of the one-way communication device 5 is maintained or the spring 5-4 is replaced; the inner component 5-3 is arranged inside the outer component 5-2, one end of the inner component 5-3 close to the second connecting end 5-1 is communicated with the outside, and the other end of the inner component 5-3 is connected with the base 5-5 through a spring 5-4; the side walls of the outer component 5-2 and the inner component 5-3 are respectively provided with a plurality of first slurry outlets 5-2-1 and a plurality of second slurry outlets 5-3-1; the inner member 5-3 moves towards the base 5-5 under the pressure of the slurry while compressing the spring 5-4, and the plurality of second slurry outlets 5-3-1 coincide with the plurality of first slurry outlets 5-2-1 to allow the slurry to flow out.

Further, still include: a drinking-water pipe 2 for inciting somebody to action the water in the karst district is taken out, 2 one end of drinking-water pipe passes 3 arrange in the karst district.

Specifically, as shown in fig. 4, the outer member 5-2 and the inner member 5-3 are both cylindrical barrel-shaped structures made of stainless steel, grout is injected into the grouting pipe 1, water in a karst region is pumped out through the water pumping pipe 2 so as to avoid affecting the hanging of the grout on the metal mesh 3, the grout flows into six one-way communication devices 5 from six first connection ends 1-1 of the side wall of the grouting pipe 1 respectively, after the inner member 5-3 in the one-way communication devices 5 is subjected to the pressure of the grout, the spring 5-4 is squeezed, and then two second grout outlets 5-3-1 and two first grout outlets 5-2-1 are overlapped, the grout flows out from the first grout outlet 5-2-1 and is rapidly solidified near the metal mesh 3, in order to enable the one-way communication devices 5 to continuously grout at a fixed position, a magnet 9 is fixed on the outer wall of the outer component 5-2, and the magnet 9 is a strong magnet, so that the one-way communication device 5 can be adsorbed on the metal mesh 3; after slurry is hung on one area of the metal net 3, stopping grouting, and at the moment, the inner member 5-3 is extruded by the spring 5-4 to reset; the grouting pipe 3 and the one-way communication device 5 are replaced on the metal net 3, and grouting is only needed until the whole metal net 3 and the adjacent area thereof are filled with slurry, and the slurry is continuously and rapidly solidified to form a blocking wall for blocking a water outlet 7.1 of the karst area 7; because the maximum width of whole device is greater than the maximum width of metal mesh 3, when putting the device into the karst district, can tear the metal mesh open, putting the device into, metal mesh 3 remains the slip casting region less at last and repair other damaged areas with the wire connection, and demolish five one-way intercommunication device 5 wherein, only remain one-way intercommunication device 5 and carry out the slip casting, single one-way intercommunication device 5 can be taken out from the net this moment.

Further, in order to prevent the slurry from flowing out of the gap formed between the inner member 5-3 and the outer member 5-2, which may damage the apparatus, the outer diameter of the inner member 5-3 is equal to the inner diameter of the outer member 5-2.

Furthermore, the first grout outlets 5-2-1 can enable grout to flow out simultaneously, grouting efficiency is improved, and the distance between the first grout outlets 5-2-1 is equal to that between the second grout outlets 5-3-1.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (6)

1. A slip casting device for foundation ditch karst area, its characterized in that includes: the device comprises a metal net (3), a water stop plate (4), a grouting pipe (1), a water pumping pipe (2) and a one-way communication device (5) for leading out slurry;

the metal net (3) covers a water outlet (7.1) of the karst area (7); the edge of the water stop plate (4) is fixedly connected with the edge of a water outlet (7.1) of the karst area (7), the water stop plate (4) does not completely cover the water outlet (7.1) of the karst area (7), and the metal mesh (3) is positioned between the water stop plate (4) and the water outlet (7.1) of the karst area (7);

the water pumping pipe (2) is used for pumping out water in the karst area, and the water pumping pipe (2) penetrates through the metal mesh (3) and is arranged in the karst area;

the side wall of the grouting pipe (1) is provided with a plurality of first connecting ends (1-1);

one end of the one-way communication device (5) is a second connecting end (5-1), the second connecting end (5-1) is connected with the first connecting end (1-1) through a thread pair, and the one-way communication device (5) is used for guiding slurry out of the metal net (3) to form a blocking wall for blocking a water outlet (7.1) of the karst area (7).

2. Device according to claim 1, characterized in that said one-way communication means (5) comprise: an outer member (5-2), an inner member (5-3), a spring (5-4) and a base (5-5);

the second connecting end (5-1) is arranged at one end of the outer component (5-2), the outer component (5-2) is hollow, and the outer component (5-2) is connected with the base (5-5) in a sealing mode;

the inner member (5-3) is arranged inside the outer member (5-2), one end of the inner member (5-3) close to the second connecting end (5-1) is communicated with the outside, and the other end of the inner member (5-3) is connected with the base (5-5) through a spring (5-4);

the side walls of the outer component (5-2) and the inner component (5-3) are respectively provided with a plurality of first slurry outlets (5-2-1) and a plurality of second slurry outlets (5-3-1); the inner member (5-3) moves towards the base (5-5) under the pressure of the slurry while compressing the spring (5-4), and the plurality of second slurry outlets (5-3-1) and the plurality of first slurry outlets (5-2-1) coincide to allow the slurry to flow out.

3. The apparatus of claim 1, further comprising: and the magnet (9) is used for fixing the one-way communication device (5) on the metal net (3), and the magnet (9) is fixedly connected with the outer side wall of the one-way communication device (5).

4. The device according to claim 2, wherein the inner member (5-3) has an outer diameter equal to the outer member (5-2) inner diameter.

5. A device according to claim 2, characterized in that the other end of the outer member (5-2) is provided with an external thread; the base (5-5) is provided with internal threads and is connected with the other end of the outer component (5-2) through a thread pair.

6. The device according to claim 4, characterized in that the pitch of the first plurality of outlets (5-2-1) is equal to the pitch of the second plurality of outlets (5-3-1).

Images