CN216765971U - Sinking construction device for cast-in-place underground building - Google Patents

Abstract

The utility model discloses a sinking construction device for a cast-in-place underground building, which relates to the technical field of underground building construction, wherein the building comprises an outer wall, a top plate, a bottom plate and a construction device, and consists of end sections positioned at two ends and a middle section positioned in the middle; the construction device comprises an excavating device, a hanging device and a pouring device, wherein the hanging device and the pouring device are positioned at the top of a building; the longitudinal wall comprises an upper hole and a lower hole, wherein the upper hole is staggered up and down, the upper hole is located above the bottom plate, the lower hole is close to the lower portion of the bottom plate, the bottom plate chain cutter envelopes the bottom plate through the upper hole and the lower hole, and the longitudinal wall comprises a lower longitudinal wall located 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.

Description

Sinking construction device for cast-in-place underground building

Technical Field

The utility model relates to the technical field of underground building construction, in particular to a sinking construction device for a cast-in-place underground building.

Background

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

SUMMERY OF THE UTILITY MODEL

The present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a sinking construction apparatus for a cast-in-place type underground structure, which solves the above problems occurring in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the underground building comprises an outer wall, a top plate, a bottom plate and a construction device, and consists of end sections positioned at two ends and a middle section positioned in the middle, wherein the outer wall comprises longitudinal walls and transverse walls, the end sections comprise the transverse walls positioned at the end parts and two longitudinal walls positioned at two sides, and the middle section comprises the longitudinal walls positioned at two sides; the construction device comprises an excavating device, a hanging device and a pouring device, wherein the hanging device and the pouring device are positioned at the top of a building; the chain cutter comprises an outer wall chain cutter in an outer wall excavating device and a bottom plate chain cutter in a bottom plate excavating device, the bottom plate chain cutter is transversely arranged and forms a degree 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, the outer wall chain cutter is enveloped with the outer wall from the top of the sinking part of the building, and the bottom plate chain cutter is enveloped with the bottom plate; the longitudinal wall comprises an upper hole and a lower hole, the upper hole is 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, the chain cutter of the bottom plate 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 difference of the thickness of the chain cutter of the lower longitudinal wall, and the thickness of the upper longitudinal wall is smaller than or equal to the thickness of the lower longitudinal wall; the building is poured on the ground in a segmented mode in the length direction through the pouring device, 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 dig the rock soil, the chain cutters running from bottom to top bring the dug rock soil to the top, sinking operation of the building is achieved, the building sinks to a set depth, the chain cutters are drawn out, follow-up construction is completed, and the whole construction of the building is completed.

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

As a further scheme of the utility model: the chain knife comprises a chain plate, the chain plate is arranged on the chain, and the knife is arranged on the chain plate.

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

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

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

As a further scheme of the utility model: 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 later is embedded in the U-shaped groove sinking earlier.

In conclusion, the chain cutter adopting the excavating device circulates at the bottom of the building, the chain cutter does not need to run to the top, and the utility model 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 utility model adopts the hanging device, the dead weight of the underground building is balanced by the hanging device, and the utility model has the following advantages: because the underground building is extremely heavy and cannot deviate, a deviation rectifying device is not needed; the dead weight of the underground building is not pressed on the chain cutter, so that the power of the driving device is small, the tension of the chain is small, and the chain is not easy to break; the descending speed is controllable; different geological conditions can be adapted by controlling the amount of feed.

Drawings

FIG. 1 is a schematic view of the end section 4 on the right side and one of the middle sections 11 having been lowered into position, the other middle section 11 starting to be lowered with the aid of the digging device 5 and the hanging device 3-1 on top of the building 1, and also a schematic view of the narrow joint 9-2 of the later lowered middle section 11 being inserted into the wide joint 9-1 of the earlier lowered middle section 11;

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 structural diagram of a pouring device 3-2 for completing the segmental pouring of the building 1 in the length direction on the ground;

FIG. 5 is a schematic view of the structure in which link plate 7-3 of chain knife 7 is mounted on chain 7-1, and knife 7-2 is mounted on link plate 7-3;

FIG. 6 is a schematic structural view of a tapered strip-shaped chain cutter 8;

FIG. 7 is a schematic view of the structure of the rear sinking U-shaped projection 91-2-1-1 embedded in the front sinking vertical groove 91-1-2-1;

FIG. 8 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. 9 is a schematic diagram of the configuration of the wide interface with bottom 92-1;

FIG. 10 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. 11 is a schematic structural diagram of the first sinking middle section 11 with the left port 11-1 and the right port 11-3 both 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; 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; the chain cutter 7 comprises a chain 7-1 and a cutter 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 11, 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 and a pouring device 3-2, the hanging device 3-1 and the pouring 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, the outer wall chain cutter 71 envelopes the outer wall 2 from the top of the sunken part of the building 1, and the bottom plate chain cutter 72 envelopes the bottom plate 1-2; 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 between the thicknesses of the lower longitudinal wall 2X1 and 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 poured on the ground in sections according to the length direction through the pouring device 3-2, the hanging device 3-1 enables the building 1 to be in a hanging state, the driving device 6-1 is started, chain cutters 7 at the bottoms of the outer wall 2 and the bottom plate 1-2 dig the rock soil, the chain cutters 7 running from bottom to top bring the dug rock soil to the 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.

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. 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 larger than a 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 groundwater to the building 1 and the friction of rock soil to the building 1 are equal to the self weight of the building 1 including the excavating device 5, and the building 1 is always in a suspension state in the sinking process by weighting the building 1; the upper hole 2X-1 can be set at a specific height, so that the bottom of the building 1 generates buoyancy in the sinking process; the building 1 can sink in sections in the height direction.

As shown in fig. 5, the chain knife 7 includes a link plate 7-3, the link plate 7-3 is mounted on the chain 7-1, and the knife 7-2 is mounted on the link plate 7-3.

As shown in fig. 6, the chain cutter 7 comprises 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 positioned at the front ends, middle cutters 8-2 positioned in the middle and scrapers 8-3 positioned 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 height of the scrapers 8-3 is slightly lower than that of the head cutters 8-1 and the middle cutters 8-2, the head cutters 8-1 and the middle cutters 8-2 excavate rock soil, and the scrapers 8-3 bring the excavated rock soil to the front; 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 effect, when the anchors work tightly, the steel strands can be automatically locked, when the anchors do not work and 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 generate deviation, 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 inside or at the top of 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. 11, 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 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 a through hole of the U-shaped outer wall chain cutter, 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 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 U-shaped groove 92-1-1-1 sinking forwards.

In the description of the present application, 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, and are only for convenience of description and 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, should not be taken as limiting, and it should be noted that the terms "mounted" and "connected" are intended to be broadly construed, and include, for example, either fixed or removable connections, or integrally formed, mechanically connected, or indirectly connected through an intermediate medium, and the specific meaning of the terms in the present application 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 a cast-in-place 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 a pouring device (3-2), wherein the hanging device (3-1) is located 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), the outer wall chain cutter (71) envelopes the outer wall (2) from the top of a sinking part of the building (1), and the bottom plate chain cutter (72) envelopes the bottom plate (1-2); 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 middle longitudinal wall (2X 2) between the upper hole (2X-1) and the lower hole (2X-2) and the upper longitudinal wall (2X 3) above the upper hole (2X-1), the thickness of the middle longitudinal wall (2X 2) is smaller than or equal to the difference between the thicknesses of the chain cutter (7) and 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 cast in sections on the ground along the length direction through the casting device (3-2), and the building (1) is in a suspension state through the hanging device (3-1).

2. A sinking construction unit for a cast-in-place type underground structure according to claim 1, wherein the lower hole (2X-2) of the longitudinal wall (2X) comprises an entrance blade plate (2X-2-1) through which the bottom plate cutter chain (72) crushes when it carries soil greater than a gap between the lower hole (2X-2) and the bottom plate cutter chain (72).

3. A sinking construction unit for a cast-in-place underground building according to claim 2, wherein the building (1) is sunk to a predetermined depth, and is in a critical state when buoyancy of underground water 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 sinking by applying weight to the building (1).

4. A sinking construction unit for a cast-in-place underground structure according to claim 3, wherein the link cutter (7) comprises a link plate (7-3), the link plate (7-3) is installed on the chain (7-1), and the cutter (7-2) is installed on the link plate (7-3).

5. A sinking construction unit for a cast-in-place underground building according to claim 4, wherein the chain cutter (7) comprises a plurality of sets of tapered strip chain cutters (8), wherein the cutter (7-2) of the strip chain cutters (8) comprises a head cutter (8-1) at the front end, the middle cutter (8-2) is positioned in the middle, the scraper (8-3) is positioned at the tail end, the head cutter (8-1) comprises a long cutter (8-1-1), the middle cutter (8-2) comprises two short cutters (8-2-1), the height of the scraper (8-3) is slightly lower than that of the head cutter (8-1) and the middle cutter (8-2), the head cutter (8-1) and the middle cutter (8-2) excavate rock soil, and the scraper (8-3) brings the excavated rock soil to the front.

6. A sinking construction unit for a cast-in-place underground building according to claim 5, wherein the suspending means (3-1) comprises a plurality of steel strand lifting jacks (3-1A), the plurality of steel strand lifting jacks (3-1A) are synchronously and slowly lifted, and the building (1) is sunk in a suspended state.

7. A sinking construction unit for a cast-in-place underground building 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 inside or on top of the building (1) when the cutter (7-2) is worn.

8. A sinking construction unit for a cast-in-place 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 a cast-in-place 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 device for a cast-in-place underground building according to claim 9, wherein the port (9) comprises a bottom plate port (92), the bottom wide port (92-1) with 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 digging device (531) comprises a U-shaped wide outer wall chain cutter (7531Y), and the U-shaped wide outer wall chain cutter (7531Y) digs 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 U-shaped groove (92-1-1-1) which sinks first.

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