CN216765978U - Sinking construction device for assembled underground building - Google Patents

Abstract

The utility model discloses a sinking construction device for an assembled underground building, which relates to the technical field of underground building construction, wherein the underground building comprises an outer wall, a top plate, a bottom plate and a construction device; the longitudinal wall comprises holes which are positioned above the bottom plate and staggered up and down, and the chain cutter is wrapped on the bottom plate through the holes; the building is constructed on the ground in the full length mode through the construction device, the driving device is started when the building is in a suspended state through the hanging device, the chain cutter at the bottom of the bottom plate excavates rock soil, the excavated rock soil is brought to the upper side through the chain cutter running from bottom to top, sinking operation of the building is achieved, the building sinks to the set depth, and the chain cutter is drawn out to complete follow-up construction.

Description

Sinking construction device for assembled underground building

Technical Field

The utility model relates to the technical field of underground building construction, in particular to a sinking construction device for an assembly type underground building.

Background

The existing large-scale underground building is constructed by an open cut method commonly used, the open cut method needs to firstly cut a foundation pit for supporting, then pour or assemble the underground building in the foundation pit, needs to make temporary supporting and precipitation of the foundation pit, and has long construction period and high construction cost; at present, the chain cutter is adopted to excavate the rock soil at the bottom, the whole sinking technical scheme, and the sinking construction device without a hanging device has the following defects because the self load of the underground building is too heavy: the inclination and the deviation are easy to generate, a deviation rectifying device needs to be additionally arranged when the device sinks, and once the deviation is generated, the deviation rectification is difficult to realize; the large load is pressed on the bottom chain cutter, so that the power of the driving device is too large, and the chain cutter is easy to break; the descent speed is difficult to control; the cutter feeding amount of the bottom chain cutter is out of control, so that the cutter is easily damaged; to this end we propose a sinking construction device for a fabricated underground structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, it is an object of the present invention to provide a sinking construction apparatus for a fabricated underground structure, which solves the above-mentioned problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the underground building comprises an outer wall, a top plate, a bottom plate and a construction device, wherein the outer wall comprises a longitudinal wall and a transverse wall, the construction device comprises an assembling device, an excavating device and a hanging device positioned at the top of the building, the excavating device excavates rock soil at the bottom of the bottom plate, the excavating device comprises a chain cutter and a driving device, the chain cutter comprises a chain and a cutter installed on the chain, and the driving device is installed above the bottom plate; the longitudinal wall comprises holes which are positioned above the bottom plate and staggered up and down, the chain cutter envelopes the bottom plate through the holes, the longitudinal wall comprises a lower longitudinal wall positioned below the holes and an upper longitudinal wall positioned above the holes, and the thickness of the upper longitudinal wall is less than or equal to the sum of the thicknesses of the lower longitudinal wall and the chain cutter; the building is constructed on the ground in the full length mode through the construction device, the building is in a suspended state through the hanging device, the driving device is started, the chain cutter at the bottom of the bottom plate excavates rock soil, the excavated rock soil is brought to the upper side by the chain cutter running from bottom to top, sinking operation of the building is achieved, the building sinks to a set depth, the chain cutter is pulled out, and then follow-up construction is completed until all construction of the building is completed.

As a further scheme of the utility model: the assembly device comprises a tensioning device, and the building comprises a plurality of bottom plate modules, a middle plate module, a top plate module, a side wall module and an end wall module.

As a further scheme of the utility model: the holes in the longitudinal wall include inlet blade plates through which rock and soil such as cobblestones or boulders larger than a gap between the holes and the bottom plate chain knives are crushed when the bottom plate chain knives carry the rock and soil.

As a further scheme of the utility model: the building sinks to a set depth, and when the buoyancy of underground water to the building and the friction of rock soil to the building are equal to the dead weight of the building including the excavating device, the building is in a critical state, and the building is always in a suspension state in the sinking process by weighting the building.

As a further scheme of the utility model: the chain sword include the link joint, the link joint is installed on the chain, the sword is installed on the link joint, the chain sword comprises a plurality of groups strip chain sword that is the taper, sword among the strip chain sword is including the head sword that is located the front end, the middle sword that is located the centre and the scraper blade that is located the tail end, the head sword includes a long sword, middle sword includes two short knives, the height that highly is less than head sword and middle sword of scraper blade, head sword and middle sword excavate the ground, the ground that the scraper blade will excavate is taken to the place ahead.

As a further scheme of the utility model: the hanging device comprises steel strand lifting jacks, the steel strand lifting jacks synchronously and slowly lift, and the building sinks under the hanging state and is difficult to deviate due to the huge dead weight of the building.

As a further scheme of the utility model: when the chain cutter is used for excavating rock soil, different geological conditions are met by controlling the descending speed of the hanging device, and when the chain cutter is worn, the chain cutter is replaced inside a building.

As a further scheme of the utility model: when the chain cutter is used for excavating rock and soil, different geological conditions are met by controlling the descending speed of the hanging device, and when the chain cutter is worn, the chain cutter is replaced at the top.

As a further scheme of the utility model: the bottom plate excavating device comprises a hydraulic flushing device and a hydraulic unearthing device, excavated rock soil is separated from the chain cutter through the hydraulic flushing device, and the mud-water mixture separated from the chain cutter is sent out through the hydraulic unearthing device.

As a further scheme of the utility model: the building can be assembled and sunk in a sectional mode in the height direction, and in initial sinking construction of the building, buoyancy is generated through water filling so as to balance the weight of the building in a suspended state.

This technique has adopted excavating gear's chain sword to circulate in the bottom of building, and the chain sword need not move to the top, has following advantage: the top of the hanging device is not provided with an enveloping chain cutter, so that the hanging device can be used for conveniently hanging a building; particularly, when the construction is performed in a sectional manner in the height direction, the construction body can be directly poured on the upper part of the building without disconnecting the chain cutter and dismantling the driving device.

This technique has adopted cable suspension device, and underground building's dead weight is balanced by cable suspension device, has following advantage: because the underground building is extremely heavy and cannot deviate, a deviation rectifying device is not needed; the dead weight of the underground building is not pressed on the chain cutter, so that the power of the driving device is small, the tension of the chain is small, and the chain is not easy to break; the descending speed is controllable; different geological conditions can be adapted by controlling the amount of feed.

Drawings

FIG. 1 is a schematic view of a structure in which a digging implement 5 is installed on a building 1, and a suspending implement 31 provided on the top of the building 1 is connected to the top of the building 1;

fig. 2 is a schematic view of the structure of building 1 after it has been sunk for a while;

fig. 3 is a schematic structural view showing that the chain cutter 7 of the excavating device 5 enters the interior of the building 1 from the bottom plate 12 through the holes 2K which are staggered up and down, the returned chain cutters 7 are staggered one above another in the height direction at adjacent positions, and the pipeline and the electric circuit pass through the staggered space of the upper and lower chain cutters 7 from the upper part to the bottom part;

fig. 4 is a schematic structural diagram of the hanging device 31 hanging all the floor modules 1A, and the steel strand 41A has been threaded in the preformed hole of the floor module 1A;

fig. 5 is a schematic structural diagram of the tensioning device 41 for connecting the bottom plate modules 1A into a whole by adopting a tensioning method;

fig. 6 is a schematic structural view of the floor module 1A resting on the ground by the steel strand lifting jack 31A;

FIG. 7 shows that the assembling device 4 hoists the side wall module 1D and the end wall module 1E through the hanging device 31, and the side wall module 1D and the end wall module 1E are all connected and fixed through a bolt and nut pair;

fig. 8 is a schematic structural diagram of the hanging device 31 in which all the middle plate modules 1B are in a hanging state, and steel strands are inserted and tensioned for anchoring;

fig. 9 is a schematic structural diagram of the middle plate module 1B, the side wall module 1D and the end wall module 1E connected integrally by bolts and nuts;

fig. 10 is a schematic structural view showing that all roof modules 1C are suspended by the suspending device 31, and the steel strands are inserted and tensioned for anchoring;

FIG. 11 is a schematic structural view of the bottom side wall module 1D and the top end wall module 1E integrally connected with the bottom of the top plate module 1C by bolt and nut pairs;

fig. 12 is a schematic view of a part i of fig. 11 enlarged, and is also a schematic view of a structure in which the middle plate module 1B is placed on the bottom-layer side wall module 1D and is fixedly connected through a bolt-nut pair, and a concave-convex embedded interface is arranged in the middle to increase the connection strength and the waterproof effect;

fig. 13 is a schematic view of the structure of the excavating device 5 mounted on the assembled building 1;

fig. 14 is a schematic view of chain knife 7 being an endless chain, and also a schematic view of chain plate 73 mounted on chain 71, and knife 72 mounted on chain plate 73;

fig. 15 is a schematic structural view of the strip-shaped chain cutter 8;

FIG. 1 is a building; 11 is a top plate; 12 is a base plate; 1A is a backplane module; 1B is a middle plate module; 1C is a ceiling module; 1D is a side wall module; 1E is a headwall module; 2 is an outer wall; 2X is a vertical wall; 2K is a well; 2K1 is an entrance blade plate, which is a metal plate arranged above the chain cutter 7 through the hole 2K on the outer wall 2 and is provided with a cutting edge capable of crushing the rock brought by the chain cutter 7; 2X1 is lower vertical wall; 2X2 is upper vertical wall; 2Y is a transverse wall; 3 is a construction device; 4 is an assembly device; 41 is a tensioning device; 41A is a prestressed tension bar or a steel strand; 5 is an excavating device; 51 is a driving device; 521 is a hydraulic flushing device; 522 is a hydraulic unearthing device; 31 is a hanging device; 31A is a steel strand lifting jack; 7 is a chain cutter; 71 is a chain; 72 is a knife; 73 is a link plate; 8 is a strip chain cutter; 81 is a nose knife at the front end; 811 is a long knife; 82 is located in the middle; 821 is a short knife; 83 is a flight at the trailing end.

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, rather than all embodiments, and all other embodiments obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1 to 15, in the embodiment of the present invention, a building 1 includes an outer wall 2, a top plate 11, a bottom plate 12 and a construction device 3, the outer wall 2 includes a longitudinal wall 2X and a transverse wall 2Y, the construction device 3 includes an assembling device 4, an excavating device 5 and a hanging device 31 located at the top of the building 1, the excavating device 5 excavates rock soil at the bottom of the bottom plate 12, the excavating device 5 includes a chain cutter 7 and a driving device 51, the chain cutter 7 includes a chain 71 and a cutter 72 installed on the chain 71, and the driving device 51 is installed above the bottom plate 12; the vertical wall 2X comprises holes 2K which are positioned above the bottom plate 12 and staggered up and down, the chain cutter 7 envelopes the bottom plate 12 through the holes 2K, the vertical wall 2X comprises a lower vertical wall 2X1 positioned below the holes 2K and an upper vertical wall 2X2 positioned above the holes 2K, and the thickness of the upper vertical wall 2X2 is less than or equal to the sum of the thicknesses of the lower vertical wall 2X1 and the chain cutter 7; the building 1 is constructed on the ground in a full-length mode through the construction device 3, the building 1 is in a suspended state through the hanging device 31, the driving device 51 is started, the chain cutter 7 at the bottom of the bottom plate 12 excavates rock soil, the excavated rock soil is brought to the upper portion of the bottom plate 12 through the chain cutter 7 which runs from bottom to top, sinking operation of the building 1 is achieved, the building 1 sinks to a set depth, the chain cutter 7 is pulled out, and subsequent construction is completed until all construction of the building 1 is completed.

It should be noted that: the hole 2K can be set at a specific height, and during sinking, the bottom of the building 1 is made into a pontoon structure, which can generate buoyancy.

The assembling device 4 comprises a tensioning device 41, the building 1 comprises a plurality of bottom plate modules 1A, a middle plate module 1B, a top plate module 1C, a side wall module 1D and an end wall module 1E, and the assembling method mainly comprises the following assembling steps:

1) firstly, all the bottom plate modules 1A are in a suspension state through the hanging device 31, the bottom plate modules 1A are connected into a whole through the tensioning device 41 by adopting a tensioning method, and the bottom plate modules 1A are placed on the ground;

2) then, the side wall modules 1D, the end wall modules 1E, the side wall modules 1D and the end wall modules 1E, the bottom plate module 1A and the side wall modules 1D, and the bottom plate module 1A and the end wall modules 1E on the bottom layer are connected into a whole by using a bolt and nut pair through an assembling device 4;

3) all the middle plate modules 1B are in a suspended state through the hanging device 31, the middle plate modules 1B are connected into a whole through the tensioning device 41 by adopting a tensioning method, the middle plate modules 1B are placed at the tops of the side wall modules 1D and the end wall modules 1E at the bottom layer, and the tops of the side wall modules 1D and the end wall modules 1E at the bottom layer are connected into a whole with the bottom of the middle plate modules 1B through bolt and nut pairs;

4) completing the construction of all the middle layers except the top plate;

5) all the top plate modules 1C are in a suspended state through the hanging device 31, the top plate modules 1C are connected into a whole through the tensioning device 41 by adopting a tensioning method, the top plate modules 1C are placed at the tops of the top layer side wall modules 1D and the end wall modules 1E, the tops of the bottom layer side wall modules 1D and the end wall modules 1E are connected into a whole with the bottom of the middle plate module 1B through bolt and nut pairs, and therefore the assembly of the building 1 is completed.

It should be noted that: the bottom plate module 1A, the middle plate module 1B and the top plate module 1C can also be connected by bolt and nut pairs without using a stretching method or using a mixture.

The hole 2K in the longitudinal wall 2X comprises an inlet edge plate 2K1, and when the bottom plate chain cutter 7 carries rock soil such as cobblestones or boulders larger than the gap between the hole 2K and the bottom plate chain cutter 7, the rock soil is crushed through the inlet edge plate 2K 1; as shown in fig. 11, the entrance blade plate 2K1 is a metal plate provided above the hole 2K in the outer wall 2 through which the chain cutter 7 passes, and has a cutting edge for crushing the rocks carried by the chain cutter 7.

The building 1 sinks to a set depth, and is in a critical state when the buoyancy of underground water to the building 1 and the friction of rock soil to the building 1 are equal to the self weight of the building 1 including the excavating device 5, and the building 1 is always in a suspended state in the process of sinking by adding weight to the building 1, for example, pouring water into the building 1.

The chain cutter 7 comprises a chain plate 73, the chain plate 73 is arranged on a chain 71, the cutters 72 are arranged on the chain plate 73, the chain cutter 7 consists of a plurality of groups of tapered strip chain cutters 8, the cutters 72 in the strip chain cutters 8 comprise a head cutter 81 positioned at the front end, a middle cutter 82 positioned in the middle and a scraper 83 positioned at the tail end, the head cutter 81 comprises a long cutter 811, the middle cutter 82 comprises two short cutters 821, the height of the scraper 83 is slightly lower than that of the head cutter 81 and the middle cutter 82, the head cutter 81 and the middle cutter 82 excavate rock soil, and the scraper 83 brings the excavated rock soil to the front.

It should be noted that: assuming that the width of each set of chain blades is B, the pitch of the chain is T, n middle blades 82 are provided, and the length of the short blade 821 is a, the length of the long blade 811 is 2a, B = (2n +1) a, and the length of each set of strip-shaped chain blades 8 is equal to (n +2) T, so that the lengths of the upper blades 82 on each link plate 83 are equal.

Hanging device 31 include steel strand wires lifting jack 31A, steel strand wires lifting jack 31A goes up and down slowly in step, steel strand wires lifting jack 31A adopts the hydraulic pressure lifting mechanism of cross-core structure as the elevating gear, the wedge ground tackle at hydraulic pressure lifting mechanism both ends has one-way self-locking effect, when ground tackle work is tight, can lock the steel strand wires automatically, when the ground tackle is out of work pine, release the steel strand wires, the steel strand wires can move from top to bottom, can make building 1 wholly sink in step under the suspension state, because its self huge dead weight, be difficult to produce the skew, need not set up other deviation correcting device.

When the chain cutter 7 excavates rock soil, different geological conditions are satisfied by controlling the descending speed of the hanging device 31, and when the cutter 72 is worn, the cutter is replaced in the building 1.

It should be noted that: when encountering the cobblestones and the boulders, the cobblestones and the boulders are scraped with the knives 72 by an extremely slow descending speed.

When the chain cutter 7 excavates rock soil, different geological conditions are met by controlling the descending speed of the hanging device 31, and when the cutter 72 is worn, the cutter is replaced at the top.

As shown in fig. 13, the excavating device 52 comprises a hydraulic flushing device 521 and a hydraulic unearthing device 522, excavated rock soil is separated from the chain cutter 7 by the hydraulic flushing device 521, and the muddy water mixture separated from the chain cutter 7 is sent out by the hydraulic unearthing device 522.

The building 1 can be assembled and sunk in a sectional mode in the height direction, and the building 1 generates buoyancy by filling water in the initial sinking construction so as to balance the weight of the building 1 in a suspended state.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the convenience of description of the present invention and for simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the present invention should not be construed as being limited thereto, and it should be noted that the terms "mounted" and "connected" should be interpreted broadly, for example, as being able to be fixedly connected, detachably connected, or integrally formed, mechanically connected or indirectly connected through an intermediate, and the specific meaning of the terms in the utility model can be understood through specific situations.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A sinking construction device for an assembly type underground building is characterized in that the underground building (1) comprises an outer wall (2), a top plate (11), a bottom plate (12) and a construction device (3), the outer wall (2) comprises a longitudinal wall (2X) and a transverse wall (2Y), the construction device (3) comprises an assembly device (4), an excavating device (5) and a hanging device (31) positioned at the top of the building (1), the excavating device (5) excavates rock soil at the bottom of the bottom plate (12), the excavating device (5) comprises a chain cutter (7) and a driving device (51), the chain cutter (7) comprises a chain (71) and a cutter (72) arranged on the chain (71), and the driving device (51) is arranged above the bottom plate (12); the longitudinal wall (2X) comprises holes (2K) which are positioned above the bottom plate (12) and staggered up and down, the chain cutter (7) envelopes the bottom plate (12) through the holes (2K), the longitudinal wall (2X) comprises a lower longitudinal wall (2X 1) positioned below the holes (2K) and an upper longitudinal wall (2X 2) positioned above the holes (2K), and the thickness of the upper longitudinal wall (2X 2) is smaller than or equal to the sum of the thicknesses of the lower longitudinal wall (2X 1) and the chain cutter (7); the building (1) is constructed by installing the construction device (3) on the whole length of the ground, and the building (1) is suspended by the hanging device (31).

2. A sinking construction unit for an assembly type underground building according to claim 1, wherein the assembly means (4) comprises a tension means (41), and the building (1) comprises a plurality of floor modules (1A), a middle plate module (1B), a roof module (1C), a side wall module (1D) and an end wall module (1E).

3. A sinking construction unit for an assembled underground structure according to claim 2, wherein the hole (2K) in the longitudinal wall (2X) comprises an inlet blade plate (2K 1) which is crushed by the inlet blade plate (2K 1) when the bottom plate cutter chain (7) carries rock soil larger than a gap between the hole (2K) and the bottom plate cutter chain (7).

4. A sinking construction unit for an assembled underground structure according to claim 3, wherein the structure (1) is sunk to a predetermined depth, and is in a critical state when buoyancy of underground water to the structure (1) and friction of rock soil to the structure (1) are equal to the self weight of the structure (1) including the excavating unit (5), and the structure (1) is always in a suspended state during sinking by applying weight to the structure (1).

5. A sinking construction unit for an assembled underground building according to claim 4, wherein the chain cutters (7) comprise chain plates (73), the chain plates (73) are mounted on the chain (71), the cutters (72) are mounted on the chain plates (73), the chain cutters (7) are composed of a plurality of sets of tapered strip chain cutters (8), the cutters (72) of the strip chain cutters (8) comprise head cutters (81) at the front end, middle cutters (82) at the middle end and scrapers (83) at the rear end, the head cutters (81) comprise a long cutter (811), the middle cutters (82) comprise two short cutters (821), the scrapers (83) have a height slightly lower than the height of the head cutters (81) and the middle cutters (82), the head cutters (81) and the middle cutters (82) excavate, and the scrapers (83) bring excavated rock to the front.

6. A sinking construction unit for an assembly type underground building according to claim 5, wherein the suspending means (31) comprises a plurality of wire elevating jacks (31A), a plurality of the wire elevating jacks (31A) are synchronously and slowly elevated, and the building (1) is sunk in a suspended state, and is hardly deviated due to its own weight.

7. A sinking construction unit for a fabricated underground structure according to claim 6, wherein the chain cutter (7) is adapted to satisfy different geological conditions by controlling a descending speed of the hanger (31) when excavating the soil, and is replaced inside the structure (1) when the cutter (72) is worn.

8. A sinking construction unit for an assembled underground structure according to claim 7, wherein the chain cutter (7) is adapted to meet different geological conditions by controlling a descending speed of the hanger (31) when excavating the soil, and is replaced at the top when the cutter (72) is worn.

9. A sinking construction unit for an assembled underground structure according to claim 8, wherein the excavating means (5) comprises a hydraulic flushing means (521) and a hydraulic unearthing means (522), the excavated soil is separated from the chain cutter (7) by the hydraulic flushing means (521), and the muddy water mixture separated from the chain cutter (7) is discharged by the hydraulic unearthing means (522).

10. The sinking construction equipment for the fabricated underground building as claimed in claim 8, wherein the building (1) can be assembled and sunk in a height direction in stages, and the building (1) is constructed in an initial sinking stage by generating buoyancy by filling water to balance the weight of the building (1) itself in a suspended state.

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