CN216765974U - Sinking construction device for bottom on-site construction of upper assembled underground building - Google Patents

Abstract

The utility model discloses a sinking construction device of an upper assembly type underground building for bottom on-site construction, which relates to the technical field of underground building construction, the construction device of the building comprises a chain cutter digging device, a hanging device, a pouring device and an assembly device, the building comprises a bottom and an upper assembly type on-site construction, the bottom is poured on the ground in sections through the pouring device, the assembly of the upper part is completed above the bottom part through an assembly device, the chain cutter excavating device comprises a chain cutter and a chain cutter driving device, the chain cutter comprises a chain and a cutter arranged on the chain, the chain cutter is transversely or longitudinally enveloped at the outer side of the cross section of the building, the chain cutter driving device is started when the building is in a suspended state through the hanging device, the chain cutter at the bottom of the building excavates rock soil, and the chain cutter running from bottom to top brings the excavated rock soil to the top, so that sinking construction of the building is realized.

Description

Sinking construction device for bottom on-site construction of upper 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 constructing an upper assembly type underground building on the bottom site.

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 bottom rock soil, the whole sinking technical scheme, and the sinking construction device without a hanging device has the following defects because the self load of an 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 bottom field construction of top-mounted underground structures to solve the above problems.

Disclosure of Invention

In view of the problems in the prior art, it is an object of the present invention to provide a sinking construction apparatus for bottom-in-place construction of an upper 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 construction device of the underground building comprises a chain cutter excavating device, a hanging device, a pouring device and an assembling device, the building comprises a bottom and an assembled upper portion which are constructed on site, the bottom is poured on the ground in a segmented mode through the pouring device, the assembling of the upper portion is completed above the bottom through the assembling device, the chain cutter excavating device comprises a chain cutter and a chain cutter driving device, the chain cutter comprises a chain and a cutter installed on the chain, the chain cutter is transversely or longitudinally enveloped outside the cross section of the building, the building is in a hanging state through the hanging device, the chain cutter driving device is started, the chain cutter at the bottom of the building excavates rock soil, the excavated rock soil is brought to the upper portion through the chain cutter which runs from bottom to top, and the sinking construction of the building is achieved.

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

As a further scheme of the utility model: the building comprises an outer wall with a chain cutter side, the outer wall comprises a lower wall and an upper wall, the lower wall comprises a vertical chain cutter hole, the chain cutter hole comprises an entrance oblique conical surface, the chain cutter wraps the building through the hole, and the thickness of the lower wall is greater than the sum of the thickness of the upper wall and the thickness of the chain cutter; when the chain cutter carries rock soil larger than the gap between the lower hole and the chain cutter, the rock soil is crushed through the inclined conical surface of the inlet.

As a further scheme of the utility model: the hanging device comprises steel strand lifting jacks, and the steel strand lifting jacks synchronously and slowly lift.

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 chain cutter digging 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 knife comprises a chain plate, the chain plate is arranged on the chain, and the knife is arranged on the chain plate.

As a further scheme of the utility model: the chain cutter comprises a plurality of groups of tapered strip chain cutters, the cutters in the strip chain cutters comprise head cutters positioned at the front ends, middle cutters positioned in the middle and scraping plates positioned at the tail ends, the head cutters comprise long cutters, the middle cutters comprise two short cutters, the height of the scraping plates is slightly lower than that of the head cutters and the middle cutters, the head cutters and the middle cutters excavate rock soil, and the excavated rock soil is brought to the front by the scraping plates.

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 building is characterized in that after the bottom of the building sinks to a set depth, the building is assembled with the upper part, wherein the upper part comprises a lower section, a middle section and an upper section, and after the lower section sinks to the set depth, the building is assembled with the middle section; and after the middle section sinks to the set depth, assembling the upper section, and finally completing the section-by-section sinking of the building.

As a further scheme of the utility model: the building sinks section by section, two ends of the building in the middle section comprise a wide end and a narrow section, and the narrow section sinking backwards is embedded in the wide end.

In conclusion, according to the technical scheme, the strength and the integrity of the bottom structure are improved by casting the bottom component in situ, the upper part adopts the assembly type structure, the construction speed of building ground construction is improved, and the environment of a construction site can be improved by modular assembly construction.

This technical scheme 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 smaller, the tension of the chain is smaller, 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 structural diagram of a building 1 cast in sections on the ground in a length direction through a casting device 23, wherein the casting device 23 adopts traditional concrete pumping equipment to convey concrete and adopts formwork support in the form of slip forms or fixed formworks and the like;

fig. 2 is a schematic structural view of a construction apparatus 2 for sinking a section of a building 1 that has been cast;

fig. 3 is a schematic structural diagram of the chain cutter 3 of the chain cutter excavating device 21 wrapped at the bottom and the side of the building 1, the chain cutter 3 positioned at the bottom of the building 1 excavates rock soil, and the building 1 and the chain cutter excavating device 21 sink together with the hanging assistance of the hanging device 22;

fig. 4 is a schematic view of the construction of the bottom 1A by the pouring device 23;

FIG. 5 is a side wall module 1BC and an end wall module 1BD which are hoisted by a hoisting device 22 and are all connected and fixed by a bolt and nut pair;

fig. 6 is a schematic structural diagram illustrating that the hanging device 22 hangs all the middle plate modules 1BA and inserts steel strands, and the tensioning device 241 tensions and anchors the steel strands by using a tensioning method to connect the middle plate modules 1BA into a whole;

fig. 7 is a schematic structural diagram of the middle plate module 1BA, the side wall module 1BC and the end wall module 1BD integrally connected by bolts and nuts;

fig. 8 is a schematic structural view showing that all roof modules 1BB are suspended by the suspending device 22, and the steel strands are inserted and tensioned for anchoring;

fig. 9 is a schematic structural view of the side wall module 1BC and the end wall module 1BD at the bottom layer and the bottom of the top plate module 1BB integrally connected by a bolt-nut pair;

fig. 10 is a schematic view of a part i of fig. 9 enlarged, in which a middle plate module 1BA covers a side wall module 1BC at the bottom layer, and is fixedly connected by a bolt and nut pair, and a concave-convex embedded interface is arranged in the middle to increase the connection strength and the waterproof effect;

fig. 11 is a schematic structural view of the chain 31 of the chain knife 3 being a ring chain, and is also a schematic structural view of the knife 32 being mounted on the link plate 33;

fig. 12 is a schematic structural view of the strip-shaped chain cutter 5;

fig. 13 is a schematic structural view of the bottom 1A after pouring, the chain cutter excavating device 21 is reinstalled on the bottom 1A after the lower section 1B1 and the middle section 1B2 are installed on the bottom 1A, and the rock soil at the bottom of the building 1 is excavated and is sunk in sections;

fig. 14 is a schematic structural diagram of the chain cutter excavating device 21 being removed after the middle section 1B2 is sunk to the position, the bottom upper section 1B3 is continuously installed on the middle section 1B2, then the chain cutter excavating device 21 is restarted, the chain cutter driving device 211 is started, the chain cutter 3 excavates the rock soil at the bottom, and the main structure of the section of the building begins to sink;

figure 15 is a schematic view of the structure of both ends of building 1 including wide end 7 and narrow section 8 in the middle section;

FIG. 1 is a building; 11 is an outer wall; 1A is a bottom; 1B is an upper portion comprising a lower section 1B1, a middle section 1B2, and an upper section 1B 3; 1B1 is the lower section; 1B2 is the middle section; 1B3 is the upper section; 1B is the upper part; 1BA is a middle plate module; 1BB is a ceiling module; 1BC is a sidewall module; 1BD is a headwall module; 2 is a construction device; 21 is a chain cutter excavating device; 211 is a chain cutter drive; 22 is a hanging device; 23 is a casting device; 24 is an assembly device; 241 is a tensioning device; 3 is a chain cutter; 31 is a chain; 32 is a knife; 33 is a link plate; 4 is a steel strand lifting jack; 5 is a strip chain cutter; 51 is a head knife; 52 is an intermediate knife; 521 is a short knife; 53 is a squeegee; and 6 is an internal structure.

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 construction apparatus 2 of a building 1 located underground includes a chain cutter excavating apparatus 21, a hanging apparatus 22, a casting apparatus 23 and an assembling apparatus 24, the building 1 includes a bottom portion 1A constructed on site and an assembled upper portion 1B, the bottom portion 1A is cast in sections on the ground through the casting apparatus 23, the assembling apparatus 24 is used to assemble the upper portion 1B above the bottom portion 1A, the chain cutter excavating apparatus 21 includes a chain cutter 3 and a chain cutter driving apparatus 211, the chain cutter 3 includes a chain 31 and a cutter 32 mounted on the chain 31, the chain cutter 3 is transversely or longitudinally wrapped at the outer side of the cross section of the building 1, the hanging apparatus 22 is used to suspend the building 1, the chain cutter driving apparatus 211 is started, the chain cutter 3 at the bottom of the building 1 excavates rock soil, the excavated rock soil is brought to the upper side by the chain cutter 3 operating from bottom to top, the sinking construction of the building 1 is realized.

As shown in fig. 4 to 9, the assembling device 24 includes a tensioning device 241, the upper portion 1B includes a plurality of middle plate modules 1BA, a top plate module 1BB, a side wall module 1BC and an end wall module 1BD, and the main construction steps of the building 1 in the height direction are as follows:

1) the construction of the bottom 1A is completed through the pouring device 23;

2) the side wall modules 1BC at the bottom layer, the end wall modules 1BD, the side wall modules 1BC and the end wall modules 1BD are connected into a whole by a construction device 2 through bolt and nut pairs;

3) the bottom 1A and the side wall module 1BC and the bottom 1A and the end wall module 1BD are connected into a whole by bolt and nut pairs or welding;

4) all the middle plate modules 1BA are in a suspended state through the hanging device 22, the middle plate modules 1BA are connected into a whole through the tensioning device 241 by adopting a tensioning method, the middle plate modules 1BA are placed at the tops of the side wall modules 1BC and the end wall modules 1BD at the bottom layer, and the tops of the side wall modules 1BC and the end wall modules 1BD at the bottom layer and the bottom of the middle plate module 1BA are connected into a whole through bolt and nut pairs;

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

6) all the top plate modules 1BB are in a hanging state through the hanging device 22, the top plate modules 1BB are connected into a whole through the tensioning device 241 by adopting a tensioning method, the top plate modules 1BB are placed at the tops of the top layer side wall modules 1BC and the end wall modules 1BD, the tops of the top layer side wall modules 1BC and the top of the end wall modules 1BD are connected into a whole with the bottoms of the top plate modules 1BB through bolt and nut pairs, and therefore the assembly of the building 1 is completed.

It should be noted that: the middle plate module 1BA and the top plate module 1BB can also be coupled by a bolt and nut pair without using a stretching method.

Hanging device 22 include steel strand wires lifting jack 4, steel strand wires lifting jack 4 goes up and down slowly in step, steel strand wires lifting jack 4 adopts cross core formula structure hydraulic pressure lifting mechanism as 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 automatic locking steel strand wires, when the ground tackle is out of work pine, release the steel strand wires, the steel strand wires can move about 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.

The building 1 is sunk to a set depth, and is in a critical state when the buoyancy of groundwater 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 chain cutter digging device 21, and the building 1 is always in a suspended state in the sinking process by adding weight to the building 1, for example, pouring water into the building 1.

The chain knife 3 comprises a chain plate 33, the chain plate 33 is arranged on the chain 31, and the knife 32 is arranged on the chain plate 33; the chain cutter 3 comprises a plurality of groups of conical strip chain cutters 5, the cutters 32 in the strip chain cutters 5 comprise a head cutter 51 positioned at the front end, a middle cutter 52 positioned in the middle and a scraper 53 positioned at the tail end, the head cutter 51 comprises a long cutter 511, the middle cutter 52 comprises two short cutters 521, the height of the scraper 53 is slightly lower than that of the head cutter 51 and the middle cutter 52, the head cutter 51 and the middle cutter 52 excavate the rock soil, and the scraper 53 brings the excavated rock soil to the front.

It should be noted that: assuming that the width of each group of chain cutters is B, the pitch of the chain is T, n middle cutters 52 are provided, and the length of the short cutter 521 is a, the length of the long cutter 511 is 2a, B = (2 n + 1) a, and the length of each group of strip-shaped chain cutters 5 is equal to (n + 2) T, so that the lengths of the cutters 32 for cutting rock soil on each chain plate 33 can be equal.

When the chain cutter 3 excavates rock soil, different geological conditions are met by controlling the descending speed of the hanging device 22, and when the cutter 32 is worn, the cutter is replaced at the top.

It should be noted that: when encountering the cobblestones and the boulders, the cobblestones and the boulders are scraped with the knives 32 by an extremely slow descending speed.

The building 1 comprises an internal structure 6, the construction method of the building 1 comprises a construction A method, a construction B method and a construction C method, the construction A method is used for constructing the internal structure 6 after sinking is completed, the construction B method is used for implementing sinking after the construction of the internal structure 6 is completed, the construction C method is used for completing the construction of part of the internal structure 6, and after the implementation of sinking in place, the construction of all the internal structures 6 is completed.

The building 1 is characterized in that after the bottom part 1A sinks to a set depth, the upper part 1B is assembled, the upper part 1B comprises a lower section 1B1, a middle section 1B2 and an upper section 1B3, and after the lower section 1B1 sinks to the set depth, the middle section 1B2 is assembled; after the middle section 1B2 sinks to a set depth, assembling the upper section 1B3, and finally completing the section-by-section sinking of the building 1; the building 1 may be constructed by directly assembling the upper part 1B after the bottom part 1A is poured and cured, and then sinking.

The building 1 sinks section by section, two ends of the building 1 in the middle section comprise a wide end 7 and a narrow section 8, and the narrow section 8 sinking backwards is embedded in the wide end 7.

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, the components are connected in an integral mode, can be mechanically connected, can be indirectly connected through an intermediate medium, and the specific meaning of the terms in the utility model can be understood through specific conditions.

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 (8)

1. A sinking construction device for an upper-part assembled underground building in bottom site construction is characterized in that a construction device (2) of an underground building (1) comprises a chain cutter digging device (21), a hanging device (22), a pouring device (23) and an assembling device (24), the building (1) comprises a bottom (1A) in site construction and an upper part (1B) in assembled type, the bottom (1A) is poured on the ground in sections through the pouring device (23), the upper part (1B) is assembled above the bottom part (1A) through an assembling device (24), the chain cutter digging device (21) comprises a chain cutter (3) and a chain cutter driving device (211), the chain cutter (3) comprises a chain (31) and a cutter (32) arranged on the chain (31), the chain cutter (3) is transversely enveloped at the outer side of the section of the building (1), the building (1) is suspended by means of a suspension device (22).

2. A sinking construction unit for bottom-in-place construction of an upper-assembled underground building according to claim 1, c h a r a c t e r i z e d in that the assembly means (24) comprises tensioning means (241), and that the upper part (1B) comprises a number of middle plate modules (1 BA), top plate modules (1 BB), side wall modules (1 BC) and end wall modules (1 BD).

3. A sinking construction unit for constructing an upper assembled underground building at the bottom in situ according to claim 2, wherein the suspending means (22) comprises a steel strand elevating jack (4), and the plurality of steel strand elevating jacks (4) are synchronously and slowly elevated.

4. The sinking construction equipment for the upper assembled underground building constructed at the bottom of the field according to claim 3, wherein the building (1) is sunk to a predetermined depth, and is in a critical state when the buoyancy of the underground water to the building (1) and the friction of the ground to the building (1) are equal to the self weight of the building (1) including the cutter chain excavating device (21), and the building (1) is always in a suspended state during the sinking process by adding weight to the building (1).

5. A sinking construction unit for bottom-loading underground constructions in situ according to claim 4, wherein the cutter chain (3) comprises a chain plate (33), the chain plate (33) being mounted on the chain (31) and the cutter (32) being mounted on the chain plate (33).

6. A sinking construction unit for a top-loading underground building for bottom-in-place construction according to claim 5, wherein the chain cutter (3) comprises a plurality of sets of tapered chain cutters (5), the cutters (32) of the chain cutters (5) comprise a head cutter (51) at a front end, a middle cutter (52) at a middle end and a scraper (53) at a rear end, the head cutter (51) comprises a long cutter (511), the middle cutter (52) comprises two short cutters (521), the scraper (53) has a height slightly lower than the heights of the head cutter (51) and the middle cutter (52), the head cutter (51) and the middle cutter (52) excavate the ground, and the scraper (53) brings the excavated ground to the front.

7. A sinking construction unit for bottom-in-place construction of an upper-fabricated underground structure according to claim 6, wherein the chain cutter (3) is adapted to meet different geological conditions by controlling a descending speed of the hanger (22) when excavating the soil, and is replaced at the top when the cutter (32) is worn.

8. A sinking construction unit for bottom-in-place construction of an underground structure of the top-loading type according to claim 7, wherein the structure (1) is sunk section by section, both ends of the structure (1) in the middle section comprise a wide end (7) and a narrow end (8), and the narrow end (8) sunk backward is embedded in the wide end (7).

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