CN113863371A - Sinking construction device for bottom on-site construction of upper assembled underground building - Google Patents

Abstract

The invention discloses a sinking construction device for an upper assembly type underground building constructed on site at the bottom, 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 end sections comprise a transverse wall positioned at the end part and two longitudinal walls positioned at two sides, and the middle section comprises longitudinal walls positioned at two sides; 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 comprises an outer wall excavating device and a bottom plate excavating device, the outer wall excavating device excavates rock soil at the bottom of an outer wall, the bottom plate excavating device excavates rock soil at the bottom of a bottom plate, the outer wall excavating device and the bottom plate excavating device comprise chain cutter excavating devices, the chain cutter excavating devices comprise chain cutters and driving devices, the outer wall driving devices are installed above the outer wall, the bottom plate driving devices are installed above the bottom plate, and the outer wall chain cutters are wrapped on the outer wall at the top of a sinking part of the building.

Description

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

Technical Field

The invention relates to the technical field of underground building construction, in particular to a sinking construction device for constructing an upper assembly type underground building on the bottom site.

Background

The existing large-scale underground building is constructed by an open cut method commonly used, the open cut method needs to firstly cut a foundation pit for supporting, then pour or assemble the underground building in the foundation pit, needs to make temporary supporting and precipitation of the foundation pit, and has long construction period and high construction cost; at present, the chain cutter is adopted to excavate 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 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 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, a pouring device and an assembling device, wherein the hanging device is 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 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 hanging device is used for enabling the building to be in a hanging state, the driving device is started, chain cutters at the bottoms of the outer wall and the bottom plate excavate the rock soil, the chain cutters running from bottom to top are used for bringing the excavated rock soil to the top, sinking operation of the building is achieved, the building sinks to a set depth, the chain cutters are pulled out, and then follow-up construction is completed until all construction of the building is completed.

As a further scheme of the invention: 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 longitudinal length of establishing medium plate module and roof module does, then the longitudinal length of side wall module is a plurality of, the building passes through construction equipment according to length direction and divides the segmentation worker on ground one by one, the subdivision sinks, every section building is as follows at direction of height's main construction step:

1) completing construction of the bottom of the section by a pouring device;

2) connecting the side wall modules of the bottom layer, the end wall modules and the side wall modules and the end wall modules into a whole by using a bolt and nut pair through a construction device;

3) connecting the bottom and the side wall module and the bottom and the end wall module into a whole by using a bolt and nut pair or welding;

4) all the middle plate modules of the section are 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 into a whole with the bottom of the middle plate modules through bolt and nut pairs;

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

6) all the top plate modules of the section are 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 modules and the end wall modules, and the tops of the top side wall modules and the end wall modules and the bottoms of the top plate modules are connected into a whole through bolt and nut pairs, so that the assembly of the building is completed;

7) 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.

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

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

Drawings

FIG. 1 is a schematic view of the construction where the right end section 4 has been lowered into position and the middle section 11 has been lowered with the aid of the digging device 5 and the hanging device 3-1 on top of the building 1 to start the construction, and also a schematic view of the narrow joint 9-2 of the rear-lowered middle section 11 being inserted into the wide joint 9-1 of the front-lowered end section 4;

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 ensure that the lower vertical wall can bear the working load;

FIG. 4 is a schematic view of the casting device 3-2 casting the bottom 1A in situ;

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, which hangs all the middle plate modules 1BA and inserts steel strands, and the tensioning device 3-3-1 adopts a tensioning method to tension and anchor the steel strands and connects 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 in a suspended state by the suspending device 3-1, and through which steel strands are inserted to tension and anchor, and is also a schematic partial structural view of the intermediate structure 11-2;

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 coupled by a bolt and nut pair, and is also a schematic sectional view of the intermediate structure 11-2; (ii) a

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 cutter 8, and is also a schematic structural view of the strip-shaped chain cutter 8 using a roller chain as a chain;

FIG. 13 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. 14 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. 15 is a schematic diagram of the configuration of the wide interface with bottom 92-1;

FIG. 16 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. 17 is a schematic structural diagram of the first sinking intermediate section 11 with both the left port 11-1 and the right port 11-3 being wide ports 9-1;

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; 3-3 is an assembly device; 3-3-1 is a tensioning 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; 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; 71X is a stringer; 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; 12 is the internal structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 17, 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 both 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 both sides, and the middle section 11 includes longitudinal walls 2X located at both 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 3-3, wherein 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 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 according to the length direction through a casting device 3-2, segmented assembly of the upper portion 1B in the length direction is completed above the bottom 1A through an assembly device 3-3, the building 1 is in a suspension state through a hanging device 3-1, a driving device 6-1 is started, chain cutters 7 at the bottoms of an outer wall 2 and a bottom plate 1-2 dig rock soil, the dug 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.

The specification is as follows: the bottom plate excavating device 52 is provided with a hydraulic flushing device inside the building 1, the rock soil is separated from the chain cutter 7 through densely distributed pipelines and spray heads, and then the mud-water mixture is discharged to a sedimentation tank on the ground through the hydraulic unearthing device for mud-water separation, so that water can be reused.

As shown in fig. 5 to 10, an intermediate structure 11-2 of an intermediate section 11 is used as an assembly construction object, an assembly apparatus 3-3 includes a tensioning apparatus 3-3-1, an upper portion 1B includes a plurality of intermediate plate modules 1BA, a top plate module 1BB, a side wall module 1BC and an end wall module 1BD, the longitudinal lengths of the intermediate plate modules 1BA and the top plate module 1BB are set to a, the longitudinal length of the side wall module 1BC is set to a plurality of a, the building 1 is constructed on the ground section by section through the construction apparatus 3 in the length direction, and sinks section by section, and the main construction steps of each section of the building 1 in the height direction are as follows:

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 3-3-1 by adopting a tensioning method, the middle plate modules 1BA are placed at the tops of the side wall modules 1BC and the end wall modules 1BD at the bottom layer, and the tops of the side wall modules 1BC and the end wall modules 1BD at the bottom layer are connected into a whole with the bottom of the middle plate modules 1BA through bolt and nut pairs;

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

6) all the top plate modules 1BB 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 3-3-1 by adopting a tensioning method, the top plate modules 1BB are placed at the tops of the top side wall modules 1BC and the end wall modules 1BD, the tops of the top side wall modules 1BC and the end wall modules 1BD of the top layer and the bottoms of the top plate modules 1BB are connected 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.

As shown in FIG. 3, the lower hole 2X-2 in the vertical wall 2X includes an entrance blade plate 2X-2-1, which is crushed by the entrance blade plate 2X-2-1 when the bottom plate chain cutter 72 carries rock soil such as cobblestones or boulders larger than the gap between the lower hole 2X-2 and the bottom plate chain cutter 72.

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 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 rock soil, different geological conditions are met by controlling the descending speed of the hanging device 3-1, and when the cutter 7-2 is worn, the cutter is replaced at the top or inside the building 1; when encountering cobblestones and boulders, the cobblestones and boulders are scraped with the knives 7-2 by 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 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: if the end section 4 sinks first, the end interface 4-2 is a wide interface 9-1, and if the end section 4 sinks later, the end interface 4-2 is a narrow interface 9-2; as shown in fig. 17, the left interface 11-1 and the right interface 11-3 of the middle section 11 of the first sink 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 sink 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 or narrow seam 9-1, 9-2 in the upper part 1B 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: 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 through holes of the U-shaped outer wall chain knives 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 through holes of the longitudinal wall chain knives 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 531 comprises a U-shaped wide outer wall chain cutter 7-531Y, and the U-shaped wide outer wall chain cutter 7-531Y 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 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 (3-3), wherein 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) comprises a bottom (1A) and an assembled upper part (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), the assembly device (3-3) completes the sectional assembly of the upper part (1B) in the length direction above the bottom part (1A), 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. The sinking construction equipment for bottom field construction of upper fabricated underground building according to claim 1, wherein the said assembly equipment (3-3) comprises tension equipment (3-3-1), the upper part (1B) comprises several middle plate modules (1 BA), roof module (1 BB), side wall modules (1 BC) and end wall modules (1 BD), the longitudinal length of middle plate module (1 BA) and roof module (1 BB) is a, the longitudinal length of side wall module (1 BC) is a plurality of a, the building (1) is divided into segments by segments on the ground through construction equipment (3) according to the length direction, the segments are sunk, the main construction steps of each segment of building (1) in the height direction are as follows:

1) the construction of the bottom (1A) of the section is completed through a pouring device (3-2);

2) the side wall modules (1 BC) at the bottom layer, the end wall modules (1 BD) and the side wall modules (1 BC) and the end wall modules (1 BD) are connected into a whole by a construction device (3) through bolt and nut pairs;

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

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

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

6) all the top plate modules (1 BB) of the section are in a suspended state through a hanging device (3-1), the top plate modules (1 BB) are connected into a whole through a tensioning device (3-3-1) by adopting a tensioning method, the top plate modules (1 BB) are placed at the tops of the top layer side wall modules (1 BC) and the end wall modules (1 BD), the tops of the top layer side wall modules (1 BC) and the end wall modules (1 BD) are connected into a whole with the bottom of the top plate modules (1 BB) through bolt and nut pairs, and therefore the building (1) is assembled;

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.

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

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) The height, head cutter (8-1) and 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 according to claim 5, wherein the hanging means (3-1) comprises a plurality of strand elevating jacks (3-1A), the plurality of strand elevating jacks (3-1A) are synchronously and slowly elevated, and the building (1) is sunk in a suspended state.

7. A sinking construction unit for bottom-loading underground structure in situ according to claim 6, wherein the chain cutter (7) is adapted to meet different geological conditions by controlling the lowering speed of the hanger (3-1) when excavating the soil, and is replaced in the top or inside of 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 (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. The sinking construction device for bottom-in-place construction of the upper fabricated underground building according to claim 8, the connector is characterized in that the connector (9) comprises 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), the wide connector 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) 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. The sinking construction device for the upper fabricated underground building to be constructed at the bottom site according to claim 9, wherein the port (9) comprises a bottom plate port (92), the bottom wide port (92-1) of the bottom plate port (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 port excavating device (531) comprises a U-shaped wide outer wall chain cutter (7-531Y), and the U-shaped wide outer wall chain cutter (7-531Y) 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 (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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