CN216765973U - Sinking construction device for bottom on-site construction of upper assembled underground building - Google Patents

Abstract

The utility model discloses a sinking construction device for an upper assembly type underground building for bottom on-site construction, 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, and consists of end sections positioned at two ends and a middle section positioned in the middle; the construction device comprises an excavating device, a hanging device positioned at the top of a building, a pouring device and an assembling device, wherein the excavating device excavates rock soil at the bottom of the bottom plate, the excavating device comprises a chain cutter and a driving device, and the driving device is arranged above the bottom plate; 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 comprises a bottom and an assembled upper part, wherein the bottom is constructed on site in a segmented mode according to the length direction on the ground through a pouring device, the assembly device is used for completing segmented assembly of the upper part in the length direction above the bottom, the hanging device is used for enabling the building to be in a hanging state, a driving device is started, and chain cutters at the bottom of a bottom plate dig rock soil.

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 an upper assembly type underground building in bottom field construction.

Background

The existing large-scale underground building is constructed by an open cut method commonly used, the open cut method needs to firstly open a foundation pit for supporting, then the underground building is poured or assembled in the foundation pit, the bottom rock soil is excavated by adopting a chain cutter at present, the whole sinking technical scheme is adopted, and a sinking construction device without a hanging device has the following defects because the load of the underground building is too heavy: the inclination and the deviation are easy to generate, a deviation rectifying device is needed to be additionally arranged when the device sinks, and once 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 rate of descent is difficult to control; the feed amount of the bottom chain cutter is in an out-of-control state, so that the cutter is easily damaged.

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 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 underground building comprises an outer wall, a top plate, a bottom plate and a construction device, and consists of end sections positioned at two ends and a middle section positioned in the middle, wherein the outer wall comprises longitudinal walls and transverse walls, the end sections comprise the transverse walls positioned at the end parts and two longitudinal walls positioned at two sides, and the middle section comprises the longitudinal walls positioned at two sides; the construction device comprises an excavating device, a hanging device, a pouring device and an assembling device, wherein the hanging device is positioned at the top of a building; the driving device is arranged 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 comprises a bottom and an assembled upper portion, wherein the bottom is cast on the ground in a segmented mode according to the length direction through a casting device, the assembly device is used for completing segmented assembly of the upper portion in the length direction above the bottom, the building is in a suspended state through a hanging device, a driving device is started, chain cutters at the bottom of a bottom plate excavate rock soil, the excavated rock soil is brought to the upper portion through the chain cutters running from bottom to top, sinking operation of the building is achieved, the building sinks to a set depth, the chain cutters are extracted, and subsequent construction is completed until all construction of the building is completed.

The assembly quality include tensioning equipment, upper portion includes a plurality of medium plate modules, roof module, side wall module and headwall module, and the vertical length of establishing medium plate module and roof module does, then the vertical length of side wall module is a plurality of, and the building passes through construction equipment according to length direction and divides the segmentation to sink on ground step by step.

The hole includes an entrance blade plate through which rock and soil such as cobblestones or boulders larger than a gap between the hole and the bottom plate chain cutter are crushed when the bottom plate chain cutter carries the rock and soil.

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.

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.

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.

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.

The building comprises end sections, middle sections and interfaces connected between the adjacent middle sections, wherein the interfaces comprise a first-sinking wide interface and a second-sinking narrow interface, the wide interfaces and the narrow interfaces are respectively positioned at the left end and the right end of the adjacent two sections, each end section comprises an end structure body and an end interface positioned at one end, and the middle section comprises a left interface, a middle structure body and a right interface; the excavating device comprises an interface excavating device, the interface excavating device comprises a wide interface excavating device and a narrow interface excavating device, the wide interface excavating device excavates rock soil at the bottom of a wide interface, the narrow interface excavating device excavates rock soil at the bottom of a narrow interface, a chain cutter in the wide interface excavating device envelopes a wide interface, and a chain cutter in the narrow interface excavating device envelopes a narrow interface.

The interface comprises a bottomless plate interface, a bottomless wide interface of the bottomless plate interface comprises a U-shaped narrow outer wall and a vertical outer wall, the vertical outer wall comprises a vertical groove, the wide interface excavating device comprises a U-shaped narrow outer wall chain cutter and a vertical outer wall chain cutter, the U-shaped narrow outer wall chain cutter excavates rock soil at the bottom of the U-shaped narrow outer wall, and the vertical outer wall chain cutter excavates rock soil at the bottom of the vertical outer wall; the bottomless narrow connector without the bottom plate connector comprises a U-shaped outer wall, the U-shaped outer wall comprises a U-shaped boss, the narrow connector excavating device comprises a U-shaped outer wall chain cutter, rock soil at the bottom of the U-shaped outer wall is excavated by the U-shaped outer wall chain cutter, and the U-shaped boss which sinks later is embedded in the vertical groove which sinks earlier.

The interface comprises a bottom plate interface, the bottom plate wide interface with the bottom plate interface comprises a U-shaped wide outer wall, the inner side of the U-shaped wide outer wall comprises a U-shaped groove, the wide interface excavating device comprises a U-shaped wide outer wall chain cutter, and rock soil at the bottom of the U-shaped wide outer wall is excavated by the U-shaped wide outer wall chain cutter; the bottom-closed narrow connector with the bottom plate connector comprises a U-shaped wall, the U-shaped wall comprises a boss, the bottom-closed narrow connector excavating device comprises a U-shaped outer wall chain cutter, rock soil at the bottom of the U-shaped wall is excavated by the U-shaped outer wall chain cutter, and the boss which sinks later is embedded in the U-shaped groove which sinks earlier.

In conclusion, the chain cutter adopting the excavating device circulates at the bottom of the building, the chain cutter does not need to run to the top, and the chain cutter has the following advantages: 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 sectional construction in the height direction is required, the section is sunk completely without disconnecting the chain cutter and removing the driving device.

According to the utility model, the bottom component is cast in situ, so that the strength and integrity of the bottom structure are improved, the upper part adopts an assembly structure, the construction speed of building ground construction is improved, and the environment of a construction site can be improved through modular assembly construction.

The utility model adopts the hanging device, the dead weight of the underground building is balanced by the hanging device, and the utility model has the following advantages: 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 structural diagram of construction in which a middle section 11 sinks by excavating bottom rock soil through an excavating device 5 and controlling the descending speed through a hanging device 3-1, and is also a schematic structural diagram in which an end section 4 and the middle section 11 positioned in the middle are connected into a whole through a connector 9;

fig. 2 is a schematic structural diagram of the building 1 constructed in sections in the length direction, wherein the end part 4 is constructed first, and then the middle section 11 is constructed in sequence, and the middle section 11 can be constructed first during specific construction, and the interface is designed correspondingly;

FIG. 3 is a schematic view of the chain knife 7 enveloping the bottom plate 1-2 through the hole 2X-1;

FIG. 4 is a schematic structural view of the pouring device 3-2 for constructing the bottom 1A;

FIG. 5 is a side wall module 1BC and an end wall module 1BD are hoisted by a hanging device 3-1, and are all connected and fixed by a bolt and nut pair;

fig. 6 is a schematic structural diagram of the hanging device 3-1 in which all the middle plate modules 1BA are in a hanging state and steel strands are inserted, and the tensioning device 6-1 adopts a tensioning method to tension and anchor the steel strands and 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 of all roof modules 1BB being suspended by the suspending device 3-1, and through which steel strands are inserted, tensioned and anchored;

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 view of the chain 7-1 of the chain knife 7 being a ring chain, and the knife 7-2 being mounted on the link plate 7-3;

fig. 12 is a schematic structural view of the strip-shaped chain blade 8, and is also a schematic structural view of the strip-shaped chain blade 8 adopting a roller chain as a chain;

FIG. 13 is a schematic structural diagram of a bottomless wide port 91-1 having a bottomless board port 91 at the left end and a bottomless narrow port 91-2 having a bottomless board port 91 at the right end of the middle section 11;

FIG. 14 is a schematic structural diagram of the end segment 4 and the intermediate segment 11 and the adjacent intermediate segment 11 connected together by the interface 9, and is also a schematic structural diagram of the narrow interface 9-2 of the backward sinking inserted into the wide interface 9-1 of the forward sinking;

FIG. 15 is a schematic structural view of a U-shaped narrow outer wall chain cutter 7-511Y excavating the bottom rock soil of the U-shaped narrow outer wall 91-1-1 and a vertical outer wall chain cutter 7-511X excavating the bottom rock soil of the vertical outer wall 91-1-2;

FIG. 16 is a schematic structural diagram of U-shaped wide outer wall chain cutter 7-521Y excavating the bottom rock soil of the U-shaped wide outer wall 92-1-1 and U-shaped outer wall chain cutter 7-512Y excavating the bottom rock soil of the U-shaped wall 92-2-1;

FIG. 1 is a building; 1A is a bottom; 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 an outer wall; 2X is a vertical wall; 2X-1 is a hole which is positioned above the bottom plate 1-2 and staggered up and down; 2X1 is lower vertical wall; 2X2 is upper vertical wall; 2Y is a transverse wall; 1-1 is a top plate; 1-2 is a base plate; 2X-1 is a hole, and the inlet comprises a blade plate 2X-1-1 and an inclined plane 2X-1-2; 2X-1-1 is a blade plate; 2X-1-2 is a bevel; 3 is a construction device; 3-1 is a hanging device; 3-1A is a steel strand lifting jack; 3-2, a pouring device; 4 is that the end section 4 is an end section comprising an end structure 4-1 and an end interface 4-2 at one end; 5 is an excavating device; 5-1 is a driving device; 51 is an interface excavation means; 512 is a narrow interface excavating device; 9-2 is a narrow interface; 511 is a wide interface digging device; 9-1 is a digging wide interface; 6 is an assembling device; 6-1 is a tensioning device; 7 is a chain knife, comprising a chain 7-1 and a knife 7-2 arranged on the chain 7-1; 8 is a strip chain cutter; 8-1 is a front-end head knife; 8-1-1 is a long knife; 8-2 is a middle knife; 8-2-1 is a short knife; 8-3 is a scraper at the tail end; 9 is an interface, including a first sinking wide interface 9-1 and a second sinking narrow interface 9-2; 91 is a bottomless interface; 91-1 is a bottomless wide interface, comprising a U-shaped narrow outer wall 91-1-1 and a vertical outer wall 91-1-2; 91-1-1 is a U-shaped narrow outer wall; 91-1-2 is a vertical outer wall, comprising a vertical groove 91-1-2-1; 91-1-2-1 is a vertical groove; 91-2 is a bottomless narrow interface; 91-2-1 is a U-shaped outer wall; comprises a U-shaped boss 91-2-1-1; a U-shaped boss 91-2-1-1; 511 is a wide-interface excavating device, which comprises U-shaped narrow outer wall chain blades 7-511Y and vertical outer wall chain blades 7-511X which are perpendicular to each other; 7-511Y is a U-shaped narrow outer wall chain cutter; 7-511X is a vertical wall chain cutter; 7-512Y is a U-shaped outer wall chain cutter; 92 is a backplane interface; 92-1 is a wide interface with a bottom, comprising a U-shaped wide outer wall 92-1-1; 92-1-1 is a U-shaped wide outer wall; 92-1-1-1 is a U-shaped groove; 92-2 is a bottomed narrow interface; 92-2-1 is a U-shaped wall; 92-2-1-1 is a boss; 7-521Y is a U-shaped wide outer wall chain cutter; 11 is a middle section and comprises a left connector 11-1, a middle structural body 11-2 and a right connector 11-3; 11-1 is a left interface; 11-2 is an intermediate structure; 11-3 is the right interface.

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

Referring to fig. 1 to 16, in the embodiment of the present invention, an underground building 1 includes an outer wall 2, a top plate 1-1, a bottom plate 1-2, and a construction device 3, and is composed of end sections 4 located at two ends and a middle section 11 located in the middle, the outer wall 2 includes longitudinal walls 2X and transverse walls 2Y, the end sections 4 include one transverse wall 2Y located at an end and two longitudinal walls 2X located at two sides, and the middle section 11 includes longitudinal walls 2X located at two sides; the construction device 3 comprises an excavating device 5, a hanging device 3-1 positioned at the top of the building 1, a pouring device 3-2 and an assembling device 6, wherein the excavating device 5 excavates rock soil at the bottom of the bottom plate 1-2, the excavating device 5 comprises a chain cutter 7 and a driving device 5-1, and the chain cutter 7 comprises a chain 7-1 and a cutter 7-2 arranged on the chain 7-1; the driving device 5-1 is arranged above the bottom plate 1-2; the vertical wall 2X comprises a hole 2X-1 which is positioned above the bottom plate 1-2 and staggered up and down, the chain cutter 7 envelopes the bottom plate 1-2 through the hole 2X-1, the vertical wall 2X comprises a lower vertical wall 2X1 positioned below the hole 2X-1 and an upper vertical wall 2X2 positioned above the hole 2X-1, and the thickness of the upper vertical wall 2X2 is less than or equal to the sum of the thickness of the lower vertical wall 2X1 and the thickness of the chain cutter 7; the building 1 comprises a bottom 1A and an assembled upper portion 1B which are constructed on site, the bottom 1A is cast on the ground in a segmented mode in the length direction through a casting device 3-2, segmented assembly in the length direction of the upper portion 1B is completed above the bottom 1A through an assembly device 6, the building 1 is in a suspension state through a hanging device 3-1, a driving device 5-1 is started, chain cutters 7 at the bottoms of bottom plates 1-2 excavate rock soil, the excavated rock soil is brought to the upper portion through the chain cutters 7 which run from bottom to top, sinking operation of the building 1 is achieved, the building 1 sinks to a set depth, and the chain cutters 7 are pulled out to complete subsequent construction until all construction of the building 1 is completed.

It should be noted that: the excavating device is provided with a hydraulic flushing device inside the building 1, the chain cutter 7 is separated from rock soil through densely distributed pipelines and spray heads, and then the hydraulic unearthing device discharges a mud-water mixture to a sedimentation tank on the ground for mud-water separation, so that water can be reused.

Assembly quality 6 include tensioning equipment 6-1, upper portion 1B includes a plurality of medium plate module 1BA, roof module 1BB, side wall module 1BC and headwall module 1BD, it is A to establish the longitudinal length of medium plate module 1BA and roof module 1BB, then the longitudinal length of side wall module 1BC is a plurality of A, building 1 passes through construction equipment 3 according to length direction and works on ground section by section, the subdivision sinks, every section building 1 is as follows in direction of height's main construction step:

1) completing construction of the bottom 1A of the section by a pouring device 3-2;

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 3 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 middle plate modules 1BA in the section are in a suspended state through a hanging device 3-1, the middle plate modules 1BA are connected into a whole through a tensioning device 6-1 by adopting a tensioning method, the middle plate module 1BA is placed at the tops of a side wall module 1BC and an end wall module 1BD at the bottom layer, and the tops of the side wall module 1BC and the end wall module 1BD at the bottom layer are connected into a whole with the bottom of the middle plate module 1BA through a bolt and nut pair;

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

6) all the top plate modules 1BB of the section are in a suspended state through the hanging device 3-1, the top plate modules 1BB are connected into a whole through the tensioning device 6-1 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 end wall modules 1BD are connected with the bottom of the top plate modules 1BB into a whole through bolt and nut pairs, and therefore the assembly of the building 1 is completed;

7) the hanging device 3-1 enables the building 1 to be in a hanging state, the building 1 is made to sink through the digging device 5, and the chain cutter 7 is pulled out to be grouted until all construction is completed.

It should be noted that: the bottom 1A comprises a cast-in-place bottom plate, a bottommost layer and a steel structure bottom; the middle plate module 1BA and the top plate module 1BB can also be connected by adopting a bolt and nut pair without using a stretching method.

The hole 2X-1 includes an entrance blade plate 2X-1-1, which is crushed by the entrance blade plate 2X-1-1 when the bottom plate chain cutter 72 carries rock soil such as cobblestones or boulders larger than a gap between the hole 2X-1 and the bottom plate chain cutter 72.

When the building 1 is sunk to a predetermined depth and the frictional force of groundwater against the building 1 and soil and earth against the building 1 is equal to the self weight of the building 1 including the excavating device 5, the building 1 is in a critical state, and by adding weight to the building 1, for example, by pouring water into the building 1, the building 1 is always in a suspended state during the sinking process.

It should be noted that the hole 2X-1 can be set at a specific height, which makes the bottom of the building 1 generate buoyancy during the sinking process; the building 1 can sink in sections in the height direction.

The chain cutter 7 comprises chain plates 7-3, the chain plates 7-3 are arranged on a chain 7-1, the cutters 7-2 are arranged on the chain plates 7-3, the chain cutter 7 consists of a plurality of groups of tapered strip chain cutters 8, the cutters 7-2 in the strip chain cutters 8 comprise a head cutter 8-1 positioned at the front end, a middle cutter 8-2 positioned in the middle and a scraper 8-3 positioned at the tail end, the head cutter 8-1 comprises a long cutter 8-1-1, the middle cutter 8-2 comprises two short cutters 8-2-1, the height of the scraper 8-3 is slightly lower than that of the head cutter 8-1 and the middle cutter 8-2, the head cutter 8-1 and the middle cutter 8-2 excavate rock soil, and the excavated rock soil is brought to the front by the scraper 8-3; the width of each group of chain knives is B, the pitch of the chain is T, n middle knives 8-2 are arranged, the length of each short knife 8-2-1 is a, the length of each long knife 8-1-1 is 2a, B =2n +1a, and the length of each group of strip-shaped chain knives 8 is equal to n +2T, so that the length of the upper knife 7-2 of each chain plate 7-3 is equal.

The hanging device 3-1 comprises a steel strand lifting jack 3-1A, the steel strand lifting jack 3-1A synchronously and slowly lifts, the steel strand lifting jack 3-1A adopts a core-penetrating structure hydraulic lifter as a lifting machine tool, wedge-shaped anchors at two ends of the hydraulic lifter have a one-way self-locking function, when the anchors work tightly, the steel strands can be automatically locked, when the anchors do not work loose, the steel strands are released, the steel strands can move up and down, the building 1 can be ensured to integrally and synchronously sink in a hanging state, and due to the huge dead weight of the steel strands, the steel strands are difficult to deviate, and other deviation rectifying devices are not required to be arranged.

When the chain cutter 7 excavates the rock soil, different geological conditions are met by controlling the descending speed of the hanging device 3-1, when the cutter 7-2 is worn, the cutter is replaced in the building, and when cobblestones and boulders meet, the cutters 7-2 are used for scraping the cobblestones and the boulders at an extremely slow descending speed.

The building 1 comprises an end section 4, a middle section 11 and interfaces 9 connected between the adjacent middle sections 11, wherein the interfaces 9 comprise a first-sinking wide interface 9-1 and a second-sinking narrow interface 9-2, the wide interface 9-1 and the narrow interface 9-2 are respectively positioned at the left end and the right end of the adjacent two sections, the end section 4 comprises an end structure body 4-1 and an end interface 4-2 positioned at one end, and the middle section 11 comprises a left interface 11-1, a middle structure body 11-2 and a right interface 11-3; the excavating device 5 comprises an interface excavating device 51, the interface excavating device 51 comprises a wide interface excavating device 511 and a narrow interface excavating device 512, the wide interface excavating device 511 excavates rock soil at the bottom of a wide interface 9-1, the narrow interface excavating device 512 excavates rock soil at the bottom of a narrow interface 9-2, a chain cutter 7 in the wide interface excavating device 511 envelopes the wide interface 9-1, and a chain cutter 7 in the narrow interface excavating device 512 envelopes the narrow interface 9-2.

The specification is as follows: when the end section 4 sinks first, the end interface 4-2 is a wide interface 9-1, and when the end section 4 sinks later, the end interface 4-2 is a narrow interface 9-2; the left interface 11-1 and the right interface 11-3 of the middle section 11 of the first sinking are both wide interfaces 9-1, the left interface 11-1 and the right interface 11-3 of the middle section 11 of the last sinking are both narrow interfaces 9-2, the other one is a wide interface 9-1, and the other one is a narrow interface 9-2; the wide or narrow port 9-1, 9-2 in the upper portion 1B may also be integral in the height direction.

The interface 9 comprises a bottomless board interface 91, a bottomless wide interface 91-1 of the bottomless board interface 91 comprises a U-shaped narrow outer wall 91-1-1 and a vertical outer wall 91-1-2, the vertical outer wall 91-1-2 comprises a vertical groove 91-1-2-1, the wide interface excavating device 511 comprises a U-shaped narrow outer wall chain cutter 7-511Y and a vertical outer wall chain cutter 7-511X, the U-shaped narrow outer wall chain cutter 7-511Y excavates rock soil at the bottom of the U-shaped narrow outer wall 91-1-1, and the vertical outer wall chain cutter 7-511X excavates rock soil at the bottom of the vertical outer wall 91-1-2; the bottomless narrow connector 91-2 without the bottom plate connector 91 comprises a U-shaped outer wall 91-2-1, the U-shaped outer wall 91-2-1 comprises a U-shaped boss 91-2-1-1, the narrow connector excavating device 512 comprises a U-shaped outer wall chain cutter 7-512Y, rock soil at the bottom of the U-shaped outer wall 91-2-1 is excavated by the U-shaped outer wall chain cutter 7-512Y, and the rear sunken U-shaped boss 91-2-1-1 is embedded in the first sunken vertical groove 91-1-2-1.

It should be noted that: the U-shaped narrow outer wall 91-1-1, the vertical outer wall 91-1-2 and the U-shaped outer wall 91-2-1 are components of the outer wall 2; when the bottom surface of the lower longitudinal wall 2X1 is lower than the U-shaped narrow outer wall 91-1-1, the lower longitudinal wall 2X1 is provided with a through hole 7-3 of the U-shaped outer wall chain cutter 7-511Y, and when the bottom surface of the lower longitudinal wall 2X1 is higher than the U-shaped outer wall 91-1-1, the U-shaped outer wall 91-1-1 is provided with a through hole 7-3 of the longitudinal wall chain cutter 71X.

The interface 9 comprises a bottom plate interface 92, a bottom wide interface 92-1 of the bottom plate interface 92 comprises a U-shaped wide outer wall 92-1-1, the inner side of the U-shaped wide outer wall 92-1-1 comprises a U-shaped groove 92-1-1, a wide interface excavating device 511 comprises a U-shaped wide outer wall chain cutter 7-521Y, and the U-shaped wide outer wall chain cutter 7-521Y excavates rock soil at the bottom of the U-shaped wide outer wall 92-1-1; the narrow interface 92-2 with the bottom of the bottom plate interface 92 comprises a U-shaped wall 92-2-1, the U-shaped wall 92-2-1 comprises a boss 92-2-1-1, the narrow interface excavating device 512 comprises a U-shaped outer wall chain cutter 7-512Y, the U-shaped outer wall chain cutter 7-512Y excavates rock soil at the bottom of the U-shaped wall 92-2-1, and the boss 92-2-1-1 sinking backwards is embedded in the U-shaped groove 92-1-1-1 sinking forwards.

It should be noted that: the U-shaped wide outer wall 92-1-1 and the U-shaped wall 92-2-1 are components of the outer wall 2.

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 upper assembly type underground building constructed on site at the bottom is characterized in that the underground building (1) comprises an outer wall (2), a top plate (1-1), a bottom plate (1-2) and a construction device (3) and consists of end sections (4) positioned at two ends and a middle section (11) positioned in the middle, the outer wall (2) comprises longitudinal walls (2X) and transverse walls (2Y), the end sections (4) comprise the transverse walls (2Y) positioned at the end parts and the two longitudinal walls (2X) positioned at two sides, and the middle section (11) comprises the longitudinal walls (2X) positioned at two sides; the construction device (3) comprises an excavating device (5), a hanging device (3-1) positioned at the top of the building (1), a pouring device (3-2) and an assembling device (6), wherein the excavating device (5) excavates rock soil at the bottom of the bottom plate (1-2), the excavating device (5) comprises a chain cutter (7) and a driving device (5-1), and the chain cutter (7) comprises a chain (7-1) and a cutter (7-2) arranged on the chain (7-1); the driving device (5-1) is arranged above the bottom plate (1-2); the vertical wall (2X) comprises holes (2X-1) which are positioned above the bottom plate (1-2) and staggered up and down, the chain cutter (7) envelopes the bottom plate (1-2) through the holes (2X-1), the vertical wall (2X) comprises a lower vertical wall (2X 1) positioned below the holes (2X-1) and an upper vertical wall (2X 2) positioned above the holes (2X-1), and the thickness of the upper vertical wall (2X 2) is smaller than or equal to the sum of the thicknesses of the lower vertical wall (2X 1) and the chain cutter (7); the building (1) comprises a bottom (1A) and an assembled upper portion (1B) which are constructed on site, the bottom (1A) is cast in sections on the ground according to the length direction through a casting device (3-2), section assembly of the upper portion (1B) in the length direction is completed above the bottom (1A) through an assembly device (6), and the building (1) is in a suspension state through a hanging device (3-1).

2. The sinking construction equipment of claim 1, wherein the assembly means (6) comprises a tension means (6-1), the upper part (1B) comprises a plurality of middle plate modules (1 BA), a top plate module (1 BB), a side wall module (1 BC) and an end wall module (1 BD), the longitudinal length of the middle plate modules (1 BA) and the top plate module (1 BB) is a, the longitudinal length of the side wall module (1 BC) is a plurality of a, and the building (1) sinks segment by segment on the ground through the construction means (3) according to the length direction.

3. A sinking construction unit for constructing an upper fabricated underground structure at the bottom site according to claim 2, wherein the hole (2X-1) includes an entrance blade plate (2X-1-1) which crushes the rock soil larger than a gap between the hole (2X-1) and the floor chain cutter (72) by the entrance blade plate (2X-1-1) when the floor chain cutter (72) carries the rock soil.

4. The sinking construction unit for the upper fabricated underground building constructed at the bottom of the site according to claim 3, wherein the building (1) is sunk to a predetermined depth, and is in a critical state when buoyancy of groundwater to the building (1) and friction of rock soil to the building (1) are equal to the self weight of the building (1) including the excavating means (5), and the building (1) is always in a suspended state during the sinking by applying weight to the building (1).

5. A sinking construction device for bottom-on-site construction of an upper fabricated underground building according to claim 4, characterized in that the chain knives (7) comprise chain plates (7-3), the chain plates (7-3) are mounted on the chain (7-1), the knives (7-2) are mounted on the chain plates (7-3), the chain knives (7) are composed of a plurality of groups of tapered strip chain knives (8), the knives (7-2) of the strip chain knives (8) comprise a head knife (8-1) at the front end, a middle knife (8-2) at the middle and a scraping knife (8-3) at the tail end, the head knife (8-1) comprises a long knife (8-1-1), the middle knife (8-2) comprises two short knives (8-2-1), and the scraping knife (8-3) is slightly lower than the head knife (8-1) and the middle knife (8-2) And the height, the head cutter (8-1) and the middle cutter (8-2) excavate the rock soil, and the scraper (8-3) brings the excavated rock soil to the front.

6. The sinking construction unit for the upper fabricated underground building for the bottom in situ construction as claimed in claim 5, wherein the hanging means (3-1) comprises a plurality of twisted wire elevating jacks (3-1A), the plurality of twisted wire elevating jacks (3-1A) are synchronously and slowly elevated, and the building (1) is sunk in a suspended state and hardly deviated due to its own great self weight.

7. A sinking construction unit for bottom-in-place construction of an upper fabricated underground structure according to claim 6, wherein the chain cutter (7) is adapted to meet different geological conditions by controlling a descending speed of the hanger (3-1) when excavating the soil, and is replaced inside the structure (1) when the cutter (7-2) is worn.

8. The sinking construction unit for the upper assembled underground building for the bottom field construction as claimed in claim 7, wherein the building (1) comprises an end section (4) and a middle section (11) and an interface (9) connected between the adjacent middle sections (11), the interface (9) comprises a first sinking wide interface (9-1) and a second sinking narrow interface (9-2), the wide interface (9-1) and the narrow interface (9-2) are respectively positioned at the left end and the right end of the adjacent two sections, the end section (4) comprises an end structure (4-1) and an end interface (4-2) positioned at one end, and the middle section (11) comprises a left interface (11-1), a middle structure (11-2) and a right interface (11-3); the excavating device (5) comprises an interface excavating device (51), the interface excavating device (51) comprises a wide interface excavating device (511) and a narrow interface excavating device (512), the wide interface excavating device (511) excavates rock soil at the bottom of a wide interface (9-1), the narrow interface excavating device (512) excavates rock soil at the bottom of a narrow interface (9-2), a chain cutter (7) in the wide interface excavating device (511) envelopes the wide interface (9-1), and a chain cutter (7) in the narrow interface excavating device (512) envelopes the narrow interface (9-2).

9. The sinking construction device for bottom-in-place construction of the upper fabricated underground building according to claim 8, the connector (9) is characterized by comprising a bottomless plate connector (91), a bottomless wide connector (91-1) without the bottomless plate connector (91) comprises a U-shaped narrow outer wall (91-1-1) and a vertical outer wall (91-1-2), the vertical outer wall (91-1-2) comprises a vertical groove (91-1-2-1), a wide connector excavating device (511) comprises a U-shaped narrow outer wall chain cutter (7-511Y) and a vertical outer wall chain cutter (7-511X), the U-shaped narrow outer wall chain cutter (7-511Y) excavates rock soil at the bottom of the U-shaped narrow outer wall (91-1-1), and the vertical outer wall chain cutter (7-511X) excavates rock soil at the bottom of the vertical outer wall (91-1-2); the bottomless narrow connector (91-2) of the bottomless plate connector (91) comprises a U-shaped outer wall (91-2-1), the U-shaped outer wall (91-2-1) comprises a U-shaped boss (91-2-1-1), the narrow connector excavating device (512) comprises a U-shaped outer wall chain cutter (7-512Y), rock soil at the bottom of the U-shaped outer wall (91-2-1) is excavated by the U-shaped outer wall chain cutter (7-512Y), and the U-shaped boss (91-2-1-1) which sinks later is embedded in the vertical groove (91-1-2-1) which sinks earlier.

10. The sinking construction device for the upper fabricated underground building in the bottom field according to claim 9, wherein the interface (9) comprises a bottom plate interface (92), the bottom wide interface (92-1) of the bottom plate interface (92) comprises a U-shaped wide outer wall (92-1-1), the inner side of the U-shaped wide outer wall (92-1-1) comprises a U-shaped groove (92-1-1-1), the wide interface excavating device (511) comprises a U-shaped wide outer wall chain cutter (7-521Y), and the U-shaped wide outer wall chain cutter (7-521Y) excavates the rock soil at the bottom of the U-shaped wide outer wall (92-1-1); the narrow interface (92-2) with the bottom plate interface (92) comprises a U-shaped wall (92-2-1), the U-shaped wall (92-2-1) comprises a boss (92-2-1-1), the narrow interface excavating device (512) comprises a U-shaped outer wall chain cutter (7-512Y), the U-shaped outer wall chain cutter (7-512Y) excavates rock soil at the bottom of the U-shaped wall (92-2-1), and the boss (92-2-1-1) which sinks later is embedded in the U-shaped groove (92-1-1-1) which sinks first.

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