CN111734484B

CN111734484B - A prevention come-up device for underground space construction

Info

Publication number: CN111734484B
Application number: CN202010558052.6A
Authority: CN
Inventors: 蔡岳松; 程军波; 沈逸均; 范银琴; 严邵峰; 李于挺; 邵海斌
Original assignee: Ningbo Construction Jianle Engineerign Co ltd
Current assignee: Ningbo Construction Jianle Engineerign Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-11-05
Anticipated expiration: 2040-06-18
Also published as: CN111734484A

Abstract

The invention discloses a floating upward prevention device for underground space construction, which comprises a water drain pipe, wherein a water stop ring is fixed on the outer side of the water drain pipe, a metal strainer for filling pebbles is fixed on the outer side of the bottom of the water drain pipe, and water filtering holes are formed in the bottom of the water drain pipe.

Description

A prevention come-up device for underground space construction

Technical Field

The invention relates to the technical field of basement construction, in particular to a floating prevention device for underground space construction.

Background

Along with the enlargement of cities, the urbanization process is accelerated, land resources are scarce, underground spaces are continuously developed to meet the living and production requirements of people, and the utilization of underground spaces by a large number of underground buildings (structures) such as high-rise buildings, underground garages, sunken squares, subways, underground malls and the like with basements is continuously developed in the depth direction. In coastal cities with abundant water in underground soil layers, basements float upwards due to the buoyancy of underground water, so that the problem of floating resistance of the basements is increasingly prominent, and the existing technology mainly has the problems.

The existing main solving technology adopts uninterrupted drainage, such as adopting a dewatering well and using a water pump to drain water; the post-cast strip in the underground space is not closed; under special conditions, such as severe weather like typhoon and rainstorm, water is poured into the basement for back pressure to resist buoyancy; the upper part of the underground space is piled in advance, but the construction cannot be reasonably organized during construction, for example, the construction can be carried out after the structure is closed by a normal post-cast strip for 40 days, but the construction period may need 1-2 years because the upper structure and the piling are required to be finished; under the emergency conditions of typhoon, rainstorm and the like, the floating effect is difficult to maintain; unforeseen factors such as power failure cannot guarantee continuous precipitation, floating hidden danger exists, the floating problem of the basement in the construction stage is difficult to solve, and therefore the floating prevention device for underground space construction is provided.

Disclosure of Invention

The invention aims to provide a floating prevention device for underground space construction, which can effectively discharge underground water and prevent floating during basement construction, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a prevent device that floats for underground space construction, includes the outlet conduit, the outlet conduit outside is fixed with the seal ring, the outlet conduit bottom outside is fixed with the metal strainer that is used for adorning the cobble, and the outlet conduit bottom is opened there is the drainage hole.

Preferably, the outlet pipe is including installing the outer tube and adjusting the inner tube, the installation outer tube outside is fixed with the metal strainer, and the installation outer tube outside is fixed with the stone discharging component, adjust in the inner tube inserts and installs the outer tube, and adjust the inner tube bottom and install the elastic component, can be fine through the outlet of realization to groundwater in the soil of outlet pipe, play fine anti floating effect.

Preferably, the installation outer tube includes first outer tube and second outer tube, the first outer tube outside is fixed with the seal ring, and the first outer tube outside is fixed with the metal leakage net, first outer tube bottom is connected with the rotation platform through the bearing rotation, and rotates the platform bottom and be fixed with a plurality of first spliced poles, second outer tube top is fixed with a plurality of first spliced poles, and a plurality of drainage holes evenly open in the second outer tube outside, realizes pre-buried on sump pit department or bottom plate through the installation outer tube, and is fixed with ground.

Preferably, the stone discharging component comprises a spiral blade, the spiral blade is fixed on the outer side of the second outer pipe, a push plate is fixed on the outer side of the spiral blade, the push plate is in contact with the inner wall of the metal leakage net, the pebbles are discharged in a rotating mode through rotation of the spiral blade, and the pebbles are discharged into the adjusting inner pipe through the gap of the first connecting column.

Preferably, adjust the inner tube and include first inner tube and second inner tube, first inner tube top is fixed with the buckle, and the buckle outside is fixed with two locating parts, be fixed with a plurality of second spliced poles between first inner tube and the second inner tube, second inner tube outside cover has the cloth of straining water, and second inner tube bottom is fixed with the installation shell, open in the second inner tube outside has a plurality of spacing grooves, and the corresponding spacing groove of second outer tube inner wall is fixed with a plurality of spacing strips of looks adaptation with it, through taking out of adjusting the inner tube, can realize the discharge change to the cobblestone, improves its sluicing effect.

Preferably, the elastic component includes shell and inner shell, the shell cover is in the inner shell outside, and the shell is located the installation shell, the inner shell is fixed with second outer tube bottom, and installs the spring in the inner shell, the spring both ends contact with shell and inner shell respectively, promote through the elastic component and adjust the inner tube for it can have an axial dislocation with the installation inner tube to adjust the inner tube, thereby makes and adjusts the inner tube and can effectual sluicing drainage with the installation outer tube.

Preferably, the limiting part comprises a connecting plate, the connecting plate is fixed to the outer side of the retaining ring, an L-shaped sliding opening is formed in the connecting plate, a limiting column is inserted in the L-shaped sliding opening in a sliding mode, the limiting column is fixed to the outer wall of the first outer pipe, the adjusting inner pipe is limited through the limiting part, and therefore the adjusting inner pipe is prevented from being separated from the mounting outer pipe.

Preferably, the outer side of the retaining ring is carved with anti-slip lines, and the anti-slip lines improve friction force, so that the personnel can rotate conveniently.

Preferably, a sealing ring 29 is fixed in the first outer pipe 9, so that the sealing effect is improved, and the drainage effect is better.

Compared with the prior art, the invention has the beneficial effects that:

the underground water in the soil is led out and discharged by the pre-buried drain pipes with extremely low construction input cost, so that the anti-floating of the basement in the construction process which is not considered in the design is solved, the later pouring zone of the basement is facilitated to be closed in advance, and the whole construction progress is accelerated;

in the groundwater is drawn forth and is discharged, utilize the installation outer tube and adjust the crisscross mutually supporting of inner tube axial to when satisfying to draw groundwater, can also discharge the interior cobble of metal strainer through the stone discharging subassembly, avoid in the soil impurity more to cause the jam, influence drainage efficiency.

Drawings

FIG. 1 is a schematic view of the overall configuration of the present invention;

FIG. 2 is a partial cross-sectional structural schematic of the present invention;

FIG. 3 is a schematic view of a partial cross-sectional structure of a downcomer according to the present invention;

FIG. 4 is a schematic view of a second outer tube and a second inner tube according to the present invention in partial cross-section;

FIG. 5 is a schematic cross-sectional side view of a spring according to the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 2;

fig. 7 is an enlarged view of fig. 3 at B.

In the figure: 1-a water drain pipe; 2-a water stop ring; 3-a metal screen; 4-water filtration pore; 5, installing an outer pipe; 6-adjusting the inner tube; 7-a stone removal assembly; 8-an elastic member; 9-a first outer tube; 10-a second outer tube; 11-a first connecting column; 12-spiral page; 13-push plate; 14-a first inner tube; 15-a second inner tube; 16-a retaining ring; 17-a limit stop; 18-a second connecting column; 19-water filtering cloth; 20-mounting the housing; 21-a limiting groove; 22-a limit bar; 23-a housing; 24-an inner shell; 25-a spring; 26-a connecting plate; 27-L-shaped sliding port; 28-a limiting column; 29-sealing ring; 30-rotating the platform.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, the upward floating prevention device for underground space construction includes a water drain pipe 1, a water stop ring 2 is fixed on an outer side of the water drain pipe 1, a metal strainer 3 for filling pebbles is fixed on an outer side of a bottom of the water drain pipe 1, and a water filtering hole 4 is formed in a bottom of the water drain pipe 1, and the groundwater is effectively led out by filling the pebbles in the metal strainer 3 and filtering through the water filtering hole 4.

The water drain pipe 1 comprises an installation outer pipe 5 and an adjustment inner pipe 6, wherein the outer side of the installation outer pipe 5 is fixed with the metal screen 3, a stone discharging assembly 7 is fixed on the outer side of the installation outer pipe 5, the adjustment inner pipe 6 is inserted into the installation outer pipe 5, and the bottom of the adjustment inner pipe 6 is provided with an elastic member 8;

the mounting outer pipe 5 comprises a first outer pipe 9 and a second outer pipe 10, the outer side of the first outer pipe 9 is fixed with the water stop ring 2, the outer side of the first outer pipe 9 is fixed with the metal strainer 3, the bottom of the first outer pipe 9 is rotatably connected with a rotating table 30 through a bearing, a plurality of first connecting columns 11 are fixed at the bottom of the rotating table 30, the top of the second outer pipe 10 is fixed with the plurality of first connecting columns 11, and a plurality of water filtering holes 4 are uniformly formed in the outer side of the second outer pipe 10;

the stone discharging component 7 comprises a spiral blade 12, the spiral blade 12 is fixed on the outer side of the second outer pipe 10, a push plate 13 is fixed on the outer side of the spiral blade 12, the push plate 13 is in contact with the inner wall of the metal screen 3, and pebbles in the metal screen 3 are discharged through a first connecting column 11 through the rotation of the spiral blade 12;

the adjusting inner pipe 6 comprises a first inner pipe 14 and a second inner pipe 15, wherein the second inner pipe 15 is a filter screen pipe and can filter water, a retaining ring 16 is fixed at the top of the first inner pipe 14, anti-skid lines are carved on the outer side of the retaining ring 16 to facilitate people to rotate the retaining ring 16, two limiting parts 17 are fixed on the outer side of the retaining ring 16, a plurality of second connecting columns 18 are fixed between the first inner pipe 14 and the second inner pipe 15, a piece of filter cloth 19 is sleeved on the outer side of the second inner pipe 15, a mounting shell 20 is fixed at the bottom of the second inner pipe 15, a plurality of limiting grooves 21 are formed in the outer side of the second inner pipe 15, and a plurality of limiting strips 22 matched with the limiting grooves are fixed on the inner wall of the second outer pipe 10 corresponding to the limiting grooves 21;

a sealing ring 29 is fixed in the first outer pipe 9, so that a sealing effect can be achieved when the installation outer pipe 5 and the adjustment inner pipe 6 are staggered axially;

pebble discharge replacement principle: after the drain pipe is used for a period of time, because impurities in soil are more, the drain pipe can be attached to pebbles in the metal leakage net 3, so that the filtering effect is poor, the water outlet is slow, at the moment, the inner pipe 6 is adjusted by pressing downwards by personnel, the first connecting column 11 corresponds to the second connecting column 18, meanwhile, the limiting strip 22 is clamped with the limiting groove 21, then the inner pipe 6 is adjusted in a rotating mode, the second outer pipe 10 is driven to rotate on the basis of the rotating table 30, the spiral page 12 is driven to rotate, the pebbles in the metal leakage net 3 move towards the first connecting column 11 in a clearance mode, the pebbles in the metal leakage net 3 can be effectively discharged into the second inner pipe 15, then the second inner pipe 15 is taken out, the pebbles are taken out and cleaned, and the underground water is conveniently led out.

The elastic element 8 comprises an outer shell 23 and an inner shell 24, the outer shell 23 is sleeved outside the inner shell 24, the outer shell 23 is positioned in the mounting shell 20, the inner shell 24 is fixed with the bottom of the second outer tube 10, a spring 25 is arranged in the inner shell 24, and two ends of the spring 25 are respectively contacted with the outer shell 23 and the inner shell 24;

the limiting piece 17 comprises a connecting plate 26, the connecting plate 26 is fixed on the outer side of the retaining ring 16, an L-shaped sliding opening 27 is formed in the connecting plate 26, a limiting column 28 is inserted in the L-shaped sliding opening 27 in a sliding mode, and the limiting column 28 is fixed with the outer wall of the first outer pipe 9;

adjusting the limit principle of the inner tube 6: after the cobble discharges, personnel pour clean cobble into in the second inner tube 15 again, and reverse rotation second outer tube 10, make the cobble get into in the metal leaks the net 3, then loose hand again, under the effect of spring 25, promote installation shell 20 and outwards remove, thereby make and adjust inner tube 6 outwards ejecting, and make second spliced pole 18 department and sealing washer 29 contact, make between first inner tube 14 and the second inner tube 15 sealed, do not influence normal drainage, spacing post 28 and L type sliding port 27 joint each other simultaneously, thereby realize spacing to adjusting inner tube 6, avoid it to break away from installation outer tube 5.

In the scheme; when new pebbles are added, the second inner pipe 15 is filled with pebbles or other objects, then the second inner pipe 15 is inserted into the second outer pipe 10, the limiting strip 22 is clamped with the limiting groove 21, then a proper amount of pebbles are poured into the first inner pipe 14, and the rotation is reversed, so that the pebbles in the first inner pipe 14 are discharged through the gaps among the second connecting columns 18 by the spiral leaves 12 and enter the metal screen 3, and the installation of the pebbles is realized.

In the scheme; when the water drain pipe 1 is installed, the water drain pipe 1 can be installed at the lower opening of the side wall of the water collecting well, the water drain pipe 1 with the water stop ring is pre-embedded before concrete pouring, and the water drain pipe 1 with the water stop ring can also be arranged at the bottom plate and is pre-embedded before concrete construction of the bottom plate.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevention come-up device for underground space construction, includes wash-out pipe (1), wash-out pipe (1) outside is fixed with seal ring (2), its characterized in that: the outer side of the bottom of the water drain pipe (1) is fixedly provided with a metal strainer (3) used for containing pebbles, the bottom of the water drain pipe (1) is provided with a water filtering hole (4), the water drain pipe (1) comprises an installation outer pipe (5) and an adjustment inner pipe (6), the outer side of the installation outer pipe (5) is fixed with the metal strainer (3), the outer side of the installation outer pipe (5) is fixedly provided with a stone removing component (7), the adjustment inner pipe (6) is inserted into the installation outer pipe (5), the bottom of the adjustment inner pipe (6) is provided with an elastic component (8), the installation outer pipe (5) comprises a first outer pipe (9) and a second outer pipe (10), the outer side of the first outer pipe (9) is fixed with a water stop ring (2), the outer side of the first outer pipe (9) is fixed with the metal strainer (3), the bottom of the first outer pipe is rotatably connected with a rotating table (30) through a bearing, and the bottom of the rotating table (30) is fixedly provided with a plurality of first connecting columns (11), the top of the second outer pipe (10) is fixed with a plurality of first connecting columns (11), a plurality of water filtering holes (4) are uniformly formed in the outer side of the second outer pipe (10), the stone discharging assembly (7) comprises spiral leaves (12), the spiral leaves (12) are fixed in the outer side of the second outer pipe (10), a push plate (13) is fixed in the outer side of each spiral leaf (12), the push plate (13) is in contact with the inner wall of the metal leakage net (3), the adjusting inner pipe (6) comprises a first inner pipe (14) and a second inner pipe (15), a buckle (16) is fixed at the top of the first inner pipe (14), two limiting parts (17) are fixed in the outer side of the buckle (16), a plurality of second connecting columns (18) are fixed between the first inner pipe (14) and the second inner pipe (15), water filtering cloth (19) is sleeved on the outer side of the second inner pipe (15), and a mounting shell (20) is fixed at the bottom of the second inner pipe (15), a plurality of limiting grooves (21) are formed in the outer side of the second inner pipe (15), and a plurality of limiting strips (22) matched with the limiting grooves (21) are fixed on the inner wall of the second outer pipe (10) correspondingly to the limiting grooves (21).

2. The upward floating prevention device for underground space construction according to claim 1, wherein: elastic component (8) are including shell (23) and inner shell (24), shell (23) cover is in inner shell (24) outside, and shell (23) are located installation shell (20), inner shell (24) are fixed with second outer tube (10) bottom, and install spring (25) in inner shell (24), spring (25) both ends contact with shell (23) and inner shell (24) respectively.

3. The upward floating prevention device for underground space construction according to claim 2, wherein: the limiting piece (17) comprises a connecting plate (26), the connecting plate (26) is fixed to the outer side of the retaining ring (16), an L-shaped sliding opening (27) is formed in the connecting plate (26), a limiting column (28) is inserted into the L-shaped sliding opening (27) in a sliding mode, and the limiting column (28) is fixed to the outer wall of the first outer pipe (9).

4. The upward floating prevention device for underground space construction according to claim 3, wherein: the outer side of the retaining ring (16) is carved with anti-slip lines.

5. The upward floating prevention device for underground space construction according to claim 4, wherein: and a sealing ring (29) is fixed in the first outer pipe (9).