CN113846673A - Sinking construction device for assembled underground building - Google Patents

Abstract

The invention 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 construction device consists of end sections and middle sections which are positioned at two ends, the construction device comprises an excavating device, a hanging device and an assembling device which are positioned at the top of the building, the driving device comprises an outer wall driving device and a bottom plate driving device, the outer wall driving device is arranged above the outer wall, the bottom plate driving device is arranged above the bottom plate, and an outer wall chain cutter is enveloped with the outer wall from the top of the sinking part of the building; the longitudinal wall comprises an upper hole and a lower hole, wherein the upper hole and the lower hole are staggered up and down, the upper hole is positioned above the bottom plate, the lower hole is close to the lower part of the bottom plate, and the bottom plate chain cutter envelopes the bottom plate through the upper hole and the lower hole; the building is in a suspended state through the hanging device, the chain cutters at the bottoms of the outer wall and the bottom plate excavate the rock soil, and the chain cutters which run from bottom to top bring the excavated rock soil to the top, so that the sinking operation of the building is realized.

Description

Sinking construction device for assembled underground building

Technical Field

The invention relates to the technical field of underground building construction, in particular to a sinking construction device for an assembled 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 is adopted, and the sinking construction 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 feed amount of the bottom chain cutter is in an out-of-control state, so that the cutter is easily damaged.

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 a fabricated underground structure, which solves the above-mentioned problems in the background art.

In order to achieve the purpose, the invention 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 and an assembling device, wherein the hanging device and the assembling device are positioned at the top of a building; the chain cutter comprises an outer wall chain cutter in the outer wall excavating device and a bottom plate chain cutter in the bottom plate excavating device, the bottom plate chain cutter is transversely arranged and forms an angle with the longitudinal wall chain cutter, the driving device comprises an outer wall driving device and a bottom plate driving device, the outer wall driving device is installed above the outer wall, the bottom plate driving device is installed above the bottom plate, and the outer wall chain cutter is enveloped with the outer wall from the top of a sinking part of the building; the longitudinal wall comprises an upper hole and a lower hole, the upper hole is positioned above the bottom plate, the lower hole is close to the lower part of the bottom plate, the bottom plate chain cutter envelopes the bottom plate through the upper hole and the lower hole, the longitudinal wall comprises a lower longitudinal wall positioned below the bottom plate, a middle longitudinal wall between the upper hole and the lower hole and an upper longitudinal wall above the upper hole, the thickness of the middle longitudinal wall is smaller than or equal to the thickness difference of the lower longitudinal wall minus the thickness of the chain cutter, and the thickness of the upper longitudinal wall is smaller than or equal to the thickness of the lower longitudinal wall; the building is assembled on the ground in sections through a construction device; the building is in a suspended state through the hanging device, the driving device is started, chain cutters at the bottoms of the outer wall and the bottom plate excavate rock soil, the excavated rock soil is brought to the upper side by the chain cutters running from bottom to top, sinking operation of the building is achieved, the building sinks to a set depth, and the chain cutters are drawn out to complete subsequent construction until all construction of the building is completed.

As a further scheme of the invention: the assembly device comprises a tensioning device, 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, and the main assembly steps of the building are as follows:

1) firstly, the section of the bottom plate module is in a suspension state through a hanging device, the bottom plate modules are connected into a whole through a tensioning device by adopting a tensioning method, and the bottom plate module is placed on the ground;

2) then, the side wall modules, the end wall modules, the side wall modules and the end wall modules, the bottom plate modules and the side wall modules, and the bottom plate modules and the end wall modules at the bottom layer are connected into a whole by using bolt and nut pairs through an assembling device;

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

4) finishing the construction of the middle layer of the section except the top plate;

5) the top plate module is in a suspended state through a hanging device, the top plate modules are connected into a whole through a tensioning device by adopting a tensioning method, the top plate modules are placed at the tops of the top side wall module and the end wall module, and the tops of the bottom side wall module and the end wall module are connected into a whole with the bottom of the middle plate module through a bolt and nut pair, so that the assembly of the section of building is completed;

6) the hanging device enables the building to be in a hanging state, the digging device enables the building to finish sinking construction, and the chain cutter is pulled out to be grouted until all construction is finished.

As a further scheme of the invention: the lower hole in the longitudinal wall comprises an inlet blade plate, and when the bottom plate chain cutter carries rock soil larger than the gap between the lower hole and the bottom plate chain cutter, the rock soil is crushed through the inlet blade plate.

As a further scheme of the invention: 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 invention: 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 invention: the hanging device comprises steel strand lifting jacks, the steel strand lifting jacks synchronously and slowly lift, and the building sinks under a hanging state.

As a further scheme of the invention: 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 or inside a building.

As a further scheme of the invention: 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, the wide interface excavating device and the narrow interface excavating device respectively comprise chain cutter excavating devices, 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.

As a further scheme of the invention: 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 interface without the bottom plate interface comprises a U-shaped outer wall, the U-shaped outer wall comprises a U-shaped boss, the narrow interface 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 sinking backwards is embedded in the vertical groove sinking firstly.

As a further scheme of the invention: 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 narrow interface with the bottom of the bottom plate interface comprises a U-shaped wall, the U-shaped wall comprises a boss, the narrow interface 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 sinking backwards is embedded in the vertical groove sinking firstly.

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 invention 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 construction is performed in a sectional manner in the height direction, the assembly operation can be directly performed on the upper part of the building without disconnecting the chain cutter and removing the driving device.

The scheme of the invention adopts the hanging device, the dead weight of the underground building is balanced by the hanging device, and the invention 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 view of the left end section 4 which is sunk in place, and the middle section 11 starts sinking construction with the aid of the digging device 5 and the hanging device 3-1 positioned at the top of the building 1, and is also a schematic structural view of the narrow joint 9-2 of the middle section 11 which is sunk later being inserted into the wide joint 9-1 of the end section 4 which is sunk earlier;

FIG. 2 is a schematic structural diagram of the structure that after the outer wall excavating device 51 and the bottom plate excavating device 52 are installed, the hanging device 3-1 hangs the building 1 from the top, and under the driving of the driving device 6-1, the chain cutter 7 at the bottom of the building 1 excavates rock soil at the bottom, and the building 1 slowly sinks;

FIG. 3 is a schematic view of the structure of the lower hole 2X-2 in the vertical wall 2X at the entrance of the bottom plate chain cutter 72, the side surface of the lower vertical wall 2X1 is provided with an entrance blade plate 2X-2-1, and the lower vertical wall 2X1 can support the entrance blade plate 2X-2-1 to bear the working load;

FIG. 4 is a schematic structural diagram of a floor module 1A hoisted by four sets of steel strand lifting jacks 3-1A of each two sets of hanging devices 3-1, wherein the hanging devices 3-1 are provided with traveling wheels to move longitudinally on a portal frame;

FIG. 5 is a schematic structural diagram of a tensioning device 3-2-1 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 placed on the ground by the strand elevating jacks 3-1A;

FIG. 7 is a side wall module 1D and an end wall module 1E which are hoisted by the assembling device 4 through the hanging device 3-1 and are all connected and fixed by a bolt and nut pair;

fig. 8 is a schematic structural view of the hanging device 3-1, in which all the middle plate modules 1B are in a hanging state, and steel strands are inserted, tensioned and anchored;

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 3-1, and are inserted with steel strands for tension 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 link plate 7-3 mounted on chain 7-1 and knife 7-2 mounted on link plate 7-3;

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

FIG. 16 is a schematic view of the structure in which the U-shaped projection 91-2-1-1, which sinks later, is embedded in the vertical groove 91-1-2-1, which sinks earlier;

FIG. 17 is a schematic structural diagram of a U-shaped narrow outer wall chain cutter 7-531Y excavating rock soil at the bottom of the U-shaped narrow outer wall 91-1-1, a vertical outer wall chain cutter 7-531X excavating rock soil at the bottom of the vertical outer wall 91-1-2, and a longitudinal wall chain cutter 71X excavating rock soil at the bottom of a lower longitudinal wall 2X 1;

FIG. 18 is a schematic diagram of the configuration of the wide interface with bottom 92-1;

FIG. 19 is a schematic structural diagram of the middle section 11 with a wide interface 92-1 at one end and a narrow interface 92-2 at the other end, and a corresponding digging device 531 and a corresponding digging device 532 with a narrow interface respectively installed thereon;

FIG. 1 is a building; 2 is an outer wall; 1-1 is a top plate; 1-2 is a base plate; 2X is a vertical wall; 2X-1 is an upper hole staggered up and down; 2X-2 is a lower hole staggered up and down; 2X1 is lower vertical wall; 2X2 is upper vertical wall; 2Y is a transverse wall; 2X-1 is an upper hole staggered up and down; 2X-2 is a lower hole staggered up and down; 2X-2-1 is an inlet blade plate; 2X1 is lower vertical wall; 2X2 is middle vertical wall; 2X3 is upper vertical wall; 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 an end section comprising an end structure 4-1 and an end interface 4-2 at one end; 4-1 is an end structure; 4-2 is an end interface; 5 is an excavating device; 51 is an outer wall excavating device; 52 is a floor excavation means; 52-1 is a hydraulic flushing device; 52-2 is a hydraulic unearthing device; 53 is an interface digging device; 531 is a wide interface excavating apparatus; 532 is a narrow interface excavating device; 6 is a chain cutter excavating device; 6-1 is a driving device, comprising an outer wall driving device 6-11 and a bottom plate driving device 6-12; 6-11 is an outer wall driving device; 6-12 are bottom plate driving devices; 7 is a chain knife, comprising a chain 7-1 and a knife 7-2 arranged on the chain 7-1; 7-1 is a chain; 7-2 is a knife; 7-3 is a chain plate; 71 is an outer wall chain cutter in the wall excavating device 51; 72 is a floor chain cutter in the floor digging implement 52; 7-531X are vertical outer wall chain cutters; 7-531Y is a U-shaped narrow outer wall chain cutter; 7531Y is a U-shaped wide outer wall chain cutter; 7-532Y is a U-shaped outer wall chain cutter; 7-532Y is a U-shaped outer wall chain cutter; 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; 9-1 is a first sinking wide interface; 9-2 is a narrow interface which sinks backwards; 11 is the middle section; 11-1 is a left interface; 11-2 is an intermediate structure; 11-3 is a right interface; 91 is a bottomless interface; 91-1 is a bottomless wide interface; 91-1-1 is a U-shaped narrow outer wall; 91-1-2 is a vertical exterior wall; 91-1-2-1 is a vertical groove; 91-2 is a bottomless narrow interface; 91-2-1 is a U-shaped outer wall; 91-2-1-1 is a U-shaped boss; 92 is a backplane interface; 92-1 is a wide interface with a bottom; 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.

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 19, 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 and an assembling device 3-2, wherein the hanging device 3-1 and the assembling device 3-2 are positioned at the top of the building 1, the excavating device 5 comprises an outer wall excavating device 51 and a bottom plate excavating device 52, the outer wall excavating device 51 excavates rock soil at the bottom of the outer wall 2, the bottom plate excavating device 52 excavates rock soil at the bottom of the bottom plate 1-2, the outer wall excavating device 51 and the bottom plate excavating device 52 comprise a chain cutter excavating device 6, the chain cutter excavating device 6 comprises a chain cutter 7 and a driving device 6-1, and the chain cutter 7 comprises a chain 7-1 and a cutter 7-2 arranged on the chain 7-1; the chain cutter 7 comprises an outer wall chain cutter 71 in the outer wall excavating device 51 and a bottom plate chain cutter 72 in the bottom plate excavating device 52, the bottom plate chain cutter 72 is transversely arranged and forms an angle of 90 degrees with a longitudinal wall chain cutter 71X, the driving device 6-1 comprises an outer wall driving device 6-11 and a bottom plate driving device 6-12, the outer wall driving device 6-11 is installed above the outer wall 2, the bottom plate driving device 6-12 is installed above the bottom plate 1-2, and the outer wall chain cutter 71 envelopes the outer wall 2 from the top of the sunken part of the building 1; the longitudinal wall 2X comprises an upper hole 2X-1 and a lower hole 2X-2 which are staggered up and down, the upper hole 2X-1 is positioned above the bottom plate 1-2, the lower hole 2X-2 is close to the lower part of the bottom plate 1-2, the bottom plate chain cutter 72 envelopes the bottom plate 1-2 through the upper hole 2X-1 and the lower hole 2X-2, the longitudinal wall 2X comprises a lower longitudinal wall 2X1 positioned below the bottom plate 1-2, a middle longitudinal wall 2X2 between the upper hole 2X-1 and the lower hole 2X-2 and an upper longitudinal wall 2X3 above the upper hole 2X-1, the thickness of the middle longitudinal wall 2X2 is smaller than or equal to the difference of the thickness of the lower longitudinal wall 2X1 and the thickness of the chain cutter 7, and the thickness of the upper longitudinal wall 2X3 is smaller than or equal to the thickness of the lower longitudinal wall 2X 1; the building 1 is assembled on the ground in sections through the construction device 3; the building 1 is in a suspended state through the hanging device 3-1, the driving device 6-1 is started, the chain cutter 7 at the bottom of the outer wall 2 and the bottom plate 1-2 excavates the rock soil, the chain cutter 7 running from bottom to top brings the excavated rock soil to the top, sinking operation of the building 1 is achieved, the building 1 sinks to a set depth, the chain cutter 7 is drawn out, and then follow-up construction is completed until all construction of the building 1 is completed.

It should be noted that: the bottom plate excavating device 52 is provided with a hydraulic flushing device 52-1 inside the building 1, the rock soil is separated from the chain cutter 7 through densely distributed pipelines and spray heads, and the muddy water mixture is discharged to a sedimentation tank on the ground through a hydraulic soil discharging device 52-2 for muddy water separation, so that water can be reused.

As shown in fig. 4 to 11, in this embodiment, an intermediate structure 11-2 of an intermediate section 11 is used as an assembly construction object, the assembly device 3-2 includes a tensioning device 3-2-1, the building 1 includes 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 main assembly steps of the building 1 are as follows:

1) firstly, the section of the bottom plate module 1A is in a suspension state through a hanging device 3-1, the bottom plate modules 1A are connected into a whole through a tensioning device 3-2 by adopting a tensioning method, and the bottom plate module 1A is 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) the middle plate module 1B is in a suspended state through a hanging device 3-1, the middle plate module 1B is connected into a whole through a tensioning device 3-2 by adopting a tensioning method, the middle plate module 1B is placed at the tops of the side wall module 1D and the end wall module 1E at the bottom layer, and the tops of the side wall module 1D and the end wall module 1E at the bottom layer are connected into a whole with the bottom of the middle plate module 1B through a bolt and nut pair;

4) finishing the construction of the middle layer of the section except the top plate;

5) the roof module 1C of the section is in a suspended state through a hanging device 3-1, the roof module 1C is connected into a whole through a tensioning device 3-2 by adopting a tensioning method, the roof module 1C is placed at the tops of the top side wall module 1D and the end wall module 1E, the tops of the bottom side wall module 1D and the end wall module 1E are connected into a whole with the bottom of the middle plate module 1B through a bolt and nut pair, and therefore the assembly of the section of the building 1 is completed;

6) 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 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 of the two.

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

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 chain plates 7-3, the chain plates 7-3 are mounted on a chain 7-1, the cutters 7-2 are mounted on the chain plates 7-3, the chain cutter 7 is composed of a plurality of groups of tapered strip chain cutters 8, the cutters 7-2 in the strip chain cutters 8 comprise head cutters 8-1 located at the front ends, middle cutters 8-2 located in the middles and scraping plates 8-3 located at the tail ends, the head cutters 8-1 comprise long cutters 8-1-1, the middle cutters 8-2 comprise two short cutters 8-2-1, the heights of the scraping plates 8-3 are slightly lower than those of the head cutters 8-1 and the middle cutters 8-2, the head cutters 8-1 and the middle cutters 8-2 dig rock soil, and the scraping plates 8-3 bring the dug rock soil to the front.

It should be noted that: if 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 the short knife 8-2-1 is a, the length of the long knife 8-1-1 is 2a, B = (2 n + 1) a, and the length of each group of strip chain knives 8 is equal to (n + 2) T, 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 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 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 chain cutter 71 on the outer wall is replaced on the top, and the chain cutter 72 on the bottom plate is replaced inside a building.

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 53, the interface excavating device 53 comprises a wide interface excavating device 531 and a narrow interface excavating device 532, the wide interface excavating device 531 excavates rock soil at the bottom of a wide interface 9-1, the narrow interface excavating device 532 excavates rock soil at the bottom of a narrow interface 9-2, the wide interface excavating device 531 and the narrow interface excavating device 532 both comprise a chain cutter excavating device 6, a chain cutter 7 in the wide interface excavating device 531 envelopes the wide interface 9-1, and a chain cutter 7 in the narrow interface excavating device 532 envelopes the narrow interface 9-2.

It should be noted that: 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; when 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, and the other one is a wide interface 9-1 and the other one is a narrow interface 9-2; the wide 9-1 or narrow 9-2 interfaces may also be integral in the height direction.

The interface 9 comprises a bottomless plate interface 91, a bottomless wide interface 91-1 of the bottomless plate 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 531 comprises a U-shaped narrow outer wall chain cutter 7-531Y and a vertical outer wall chain cutter 7-531X, the U-shaped narrow outer wall chain cutter 7-531Y excavates rock soil at the bottom of the U-shaped narrow outer wall 91-1-1, and the vertical outer wall chain cutter 7-531X 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 532 comprises a U-shaped outer wall chain cutter 7-532Y, rock soil at the bottom of the U-shaped outer wall 91-2-1 is excavated by the U-shaped outer wall chain cutter 7-532Y, 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: 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 of the U-shaped narrow outer wall chain cutter 7-531Y, 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 of the longitudinal wall chain cutter 71X; 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.

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 531 comprises a U-shaped wide outer wall chain cutter 7531Y, and the U-shaped wide outer wall chain cutter 7531Y 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 532 comprises a U-shaped outer wall chain cutter 7-532Y, the U-shaped outer wall chain cutter 7-532Y 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 vertical groove 92-1-2-1 sinking forwards.

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 invention 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 (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) and an assembling device (3-2), wherein the hanging device (3-1) and the assembling device (3-2) are positioned at the top of the building (1), the excavating device (5) comprises an outer wall excavating device (51) and a bottom plate excavating device (52), the outer wall excavating device (51) excavates rock soil at the bottom of the outer wall (2), the bottom plate excavating device (52) excavates rock soil at the bottom of the bottom plate (1-2), the outer wall excavating device (51) and the bottom plate excavating device (52) comprise a chain cutter excavating device (6), the chain cutter excavating device (6) comprises a chain cutter (7) and a driving device (6-1), and the chain cutter (7) comprises a chain (7-1) and a cutter (7-2) installed on the chain (7-1); the chain cutter (7) comprises an outer wall chain cutter (71) in the outer wall excavating device (51) and a bottom plate chain cutter (72) in the bottom plate excavating device (52), the bottom plate chain cutter (72) is transversely arranged and forms an angle of 90 degrees with a longitudinal wall chain cutter (71X), the driving device (6-1) comprises an outer wall driving device (6-11) and a bottom plate driving device (6-12), the outer wall driving device (6-11) is installed above the outer wall (2), the bottom plate driving device (6-12) is installed above the bottom plate (1-2), and the top of a sinking part of the outer wall chain cutter (71) from the building (1) is enveloped with the outer wall (2); the longitudinal wall (2X) comprises an upper hole (2X-1) staggered up and down and a lower hole (2X-2) staggered up and down, the upper hole (2X-1) is positioned above the bottom plate (1-2), the lower hole (2X-2) is close to the lower part of the bottom plate (1-2), the bottom plate chain cutter (72) envelopes the bottom plate (1-2) through the upper hole (2X-1) and the lower hole (2X-2), the longitudinal wall (2X) comprises a lower longitudinal wall (2X 1) positioned below the bottom plate (1-2), the thickness of the middle longitudinal wall (2X 2) between the upper hole (2X-1) and the lower hole (2X-2) and the thickness of the upper longitudinal wall (2X 3) above the upper hole (2X-1) are smaller than or equal to the difference between the thicknesses of the chain reducing cutters (7) of the lower longitudinal wall (2X 1), and the thickness of the upper longitudinal wall (2X 3) is smaller than or equal to the thickness of the lower longitudinal wall (2X 1); the building (1) is assembled on the ground in sections through the construction device (3); the building (1) is in a suspended state through the hanging device (3-1), the driving device (6-1) is started, chain cutters (7) at the bottoms of the outer wall (2) and the bottom plate (1-2) excavate rock soil, the excavated rock soil is brought to the upper side by 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, the chain cutters (7) are extracted, and subsequent construction is completed until all construction of the building (1) is completed.

2. A sinking construction unit for an assembled underground building according to claim 1, characterized in that the assembly means (3-2) comprise tensioning means (3-2-1), the building (1) comprises a number of floor modules (1A), middle plate modules (1B), roof modules (1C), side wall modules (1D) and end wall modules (1E), the building (1) is mainly assembled as follows:

1) firstly, the section of the bottom plate module (1A) is in a suspension state through a hanging device (3-1), the bottom plate modules (1A) are connected into a whole through a tensioning device (3-2) by adopting a tensioning method, and the bottom plate module (1A) is placed on the ground;

2) then, connecting the side wall modules (1D) at the bottom layer, 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) into a whole by using a bolt and nut pair through an assembling device (4);

3) the middle plate module (1B) is in a suspended state through a hanging device (3-1), the middle plate module (1B) is connected into a whole through a tensioning device (3-2) by adopting a tensioning method, the middle plate module (1B) is placed at the tops of the side wall module (1D) and the end wall module (1E) at the bottom layer, and the tops of the side wall module (1D) and the end wall module (1E) at the bottom layer are connected into a whole with the bottom of the middle plate module (1B) through a bolt and nut pair;

4) finishing the construction of the middle layer of the section except the top plate;

5) the roof module (1C) is in a suspended state through a hanging device (3-1), the roof module (1C) is connected into a whole through a tensioning device (3-2) by adopting a tensioning method, the roof module (1C) is placed at the tops of the top side wall module (1D) and the end wall module (1E), the tops of the bottom side wall module (1D) and the end wall module (1E) are connected into a whole with the bottom of the middle plate module (1B) through a bolt and nut pair, and therefore the assembly of the section of building (1) is completed;

6) 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.

3. A sinking construction unit for an assembled underground structure according to claim 2, wherein the lower hole (2X-2) of the longitudinal wall (2X) includes an entrance blade plate (2X-2-1) through which the bottom plate chain cutter (72) crushes rock soil larger than a gap between the lower hole (2X-2) and the bottom plate chain cutter (72) when the bottom plate chain cutter (72) carries the rock soil.

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 device for an assembled underground building according to claim 4, wherein the chain cutters (7) comprise chain plates (7-3), the chain plates (7-3) are mounted on the chain (7-1), the cutters (7-2) are mounted on the chain plates (7-3), the chain cutters (7) are composed of a plurality of groups of tapered strip chain cutters (8), the cutters (7-2) of the strip chain cutters (8) comprise a head cutter (8-1) at the front end, a middle cutter (8-2) at the middle and a scraping blade (8-3) 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 scraping blade (8-3) is slightly lower than the heights of the head cutter (8-1) and the middle cutter (8-2), 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. A sinking construction unit for an assembled underground structure according to claim 5, wherein the suspending means (3-1) comprises a plurality of wire lifting jacks (3-1A), the plurality of wire lifting jacks (3-1A) are synchronously and slowly lifted, and the structure (1) is sunk in a suspended state.

7. A sinking construction unit for an assembled underground structure according to claim 6, wherein the chain cutter (7) is adapted to meet different geological conditions by controlling the lowering speed of the hanger means (3-1) when excavating the soil, and is replaced at the top or inside the structure (1) when the cutter (7-2) is worn.

8. A sinking construction unit for an assembled underground building according to claim 7, characterized in that 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 (53), the interface excavating device (53) comprises a wide interface excavating device (531) and a narrow interface excavating device (532), the wide interface excavating device (531) excavates rock soil at the bottom of a wide interface (9-1), the narrow interface excavating device (532) excavates rock soil at the bottom of a narrow interface (9-2), the wide interface excavating device (531) and the narrow interface excavating device (532) both comprise chain cutter excavating devices (6), a chain cutter (7) in the wide interface excavating device (531) envelops the wide interface (9-1), and a chain cutter (7) in the narrow interface excavating device (532) envelops the narrow interface (9-2).

9. A sinking construction unit for an assembled underground structure according to claim 8, wherein the port (9) comprises a bottomless port (91), a bottomless wide port (91-1) of the bottomless port (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 port excavating device (531) comprises a U-shaped narrow outer wall link cutter (7-531Y) and a vertical outer wall link cutter (7-531X), the U-shaped narrow outer wall link cutter (7-531Y) excavates the rock soil at the bottom of the U-shaped narrow outer wall (91-1-1), and the vertical outer wall link cutter (7-531X) excavates the 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 (532) comprises a U-shaped outer wall chain cutter (7-532Y), rock soil at the bottom of the U-shaped outer wall (91-2-1) is excavated by the U-shaped outer wall chain cutter (7-532Y), 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. A sinking construction unit for an assembled underground building according to claim 9, wherein the interface (9) comprises a bottom plate interface (92), the bottom wide interface (92-1) with 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 unit (531) comprises a U-shaped wide outer wall chain cutter (7531Y), and the U-shaped wide outer wall chain cutter (7531Y) excavates 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 (532) comprises a U-shaped outer wall chain cutter (7-532Y), the U-shaped outer wall chain cutter (7-532Y) 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 vertical groove (92-1-2-1) which sinks first.

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