CN115012422B - Supporting structure convenient to assemble and used for foundation pit construction and operation method - Google Patents

Abstract

The invention discloses a supporting structure for foundation pit construction and an operation method thereof, which are convenient to assemble.

Description

Supporting structure convenient to assemble and used for foundation pit construction and operation method

Technical Field

The invention relates to the technical field of foundation pit support for house construction, in particular to a support structure for foundation pit construction, which is convenient to assemble.

Background

The foundation pit is an important foundation engineering in building construction, wherein foundation pit supporting work can ensure the stability of soil mass around the foundation pit, can also simultaneously meet the requirement that basement construction has enough space, is the necessary condition of earth excavation and basement construction, and in addition, foundation pit supporting work can also ensure that facilities such as adjacent buildings around the foundation pit and underground pipelines are not damaged during foundation pit supporting and basement construction, thereby providing precondition guarantee for ensuring the follow-up normal safe construction of the foundation pit.

The defects of the existing foundation pit supporting equipment are as follows:

1. patent document CN108005089a discloses a foundation pit supporting structure, "including foundation pit and the shore that is located the foundation pit periphery, the position around the foundation pit and near the shore is provided with the buffer table that the cross-section is trapezoidal, the buffer table is less than the shore and is provided with the buffer ditch that is the trapezoidal setting of inversion between buffer table and the shore, erect the reinforced structure that the cross-section is the U-shaped setting of inversion between buffer ditch and the foundation pit bottom surface. According to the foundation pit supporting structure, the reinforced structure is arranged to enable the edge of the foundation pit to be firmer, so that the collapse risk is reduced, the supporting structure cannot fully utilize the space outside the top of the foundation pit when in use, the earthwork during excavation of the foundation pit is far away when in need of transferring, and the subsequent backfilling and earthwork treatment cost is improved;

2. patent document CN109972625B discloses a deep foundation pit supporting structure, "comprising a side plate, a bottom plate, a supporting rod, supporting bases, a first inserting anchor rod, a second inserting anchor rod and a fixed anchor rod, wherein the two supporting bases are respectively hinged to two sides of the supporting rod, the two supporting bases are respectively fixedly installed on the side plate and the bottom plate, mounting holes are formed in the side plate and the bottom plate, the first inserting anchor rod and the second inserting anchor rod comprise hollow bodies, threaded rods, driving plates and a plurality of inserting plates which are in sliding connection with the circumferential side wall of the driving plates, sliding grooves which are in one-to-one correspondence with the inserting plates are formed in the circumferential side wall of the bodies, the inserting plates are respectively in sliding insertion connection with the sliding grooves through the driving plates, and the first inserting anchor rod and the second inserting anchor rod are respectively installed on the side plate and the bottom plate; the deep foundation pit is supported through the structure, the purposes of improving the construction quality, the firmness degree of the supporting structure and the stability of the deep foundation pit are achieved, and the foundation pit supporting structure cannot be assembled effectively, conveniently and stably for a large-span foundation pit when in use, so that the use area and the use length of the foundation pit supporting structure are limited when in use;

3. patent document CN107794931B discloses a foundation pit supporting structure, "including the supporting plate with cavity, the upside intercommunication of supporting plate has the vacuum pump, the side of supporting plate is equipped with the supporting tube of inserting in the soil, the supporting tube is linked together with the cavity and is equipped with the hole that absorbs water on the pipe wall of supporting tube. The supporting plate is used for supporting the side wall of a foundation pit, the supporting structure is reinforced through the supporting pipe, after the supporting pipe is inserted into soil, the vacuum pump is used for pumping air, so that water in the soil flows into the supporting pipe under negative pressure, the water in the supporting pipe enters a cavity of the supporting plate, the pressure of the soil on the supporting plate is reduced, the side wall of the foundation pit is not easy to collapse, the supporting structure cannot intercept water bodies when pumping water, sediment mixed in the water bodies is extracted, the soil structure is influenced, the stability is stable, in addition, the specific treatment cannot be adopted for the actual condition of water quantity in the drainage process, and the drainage maintenance in the foundation pit is difficult to meet under the condition that the water quantity is large in unit time and the single drainage power is constant, such as heavy rain, emergency rain and the like;

4. patent document CN110593273B discloses a foundation pit supporting structure, "comprising a plurality of base plates, a plurality of top plates arranged on top of a soil nailing wall, a retaining plate arranged between the top plates and the base plates, and anchor rods arranged on the retaining plate; a plurality of roof and base plate one-to-one, adjacent two roof contact each other, adjacent two base plates contact each other, be provided with a set of backplate between corresponding roof and the base plate, a plurality of base plates in the same group are arranged along vertical direction and adjacent two base plates contact each other, one side that adjacent two sets of backplate are close to each other contacts each other, after the soil nail wall is built, directly install a plurality of base plates, roof and backplate on the soil nail wall can, need not to carry out the pouring of pile group, make supporting construction build rapidly, can play quick effect "of supporting, but this foundation ditch supporting construction is used for realizing foundation ditch maintenance through the use of soil nail wall only when using, fail to realize the on-the-spot solution of inside soil body when deep basal pit excavates, bring unnecessary trouble for follow-up foundation ditch backfill.

Disclosure of Invention

The invention aims to provide a supporting structure for foundation pit construction, which is convenient to assemble, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a foundation ditch construction is with supporting construction convenient to equipment, includes support baffle, lower support baffle and assembly, the inside of assembly contains two sets of channel-section steel that arrange in opposite directions, the inside gomphosis of channel-section steel is installed and is supported the baffle, the surface lower extreme of going up the support baffle has lower support baffle through bolted connection, the inside of going up the support baffle is equipped with logical groove, the diapire of leading to the groove is equipped with the recess, the inside gomphosis of recess is connected with the support axle bed, the bounding wall is installed at the top of support axle bed;

the bottom of the coaming is connected with a motor through a bolt, the motor is positioned on one side of the supporting shaft seat, the output end of the motor is connected with an electric telescopic rod, the tail end of the electric telescopic rod is connected with a screw rod, and the bottom of the screw rod is connected with an inserting block;

the soil storage device is characterized in that a drain pipe penetrates through one side surface of the lower supporting baffle, a water storage tank is connected with one end, far away from the lower supporting baffle, of the drain pipe in a jogged mode, and a soil storage tank is arranged on one side surface, far away from the lower supporting baffle, of the water storage tank.

Preferably, the inner wall of the channel steel is provided with a jogging groove, a first filling strip is mounted in the jogging groove in a jogging mode, an inwards-sunken sliding groove is formed in the surface of one side, away from the jogging groove, of the first filling strip, a second filling strip is mounted in the jogging mode in the sliding groove, and the surface of one side, away from the sliding groove, of the second filling strip is connected with the surface of the other group of the first filling strip in a laminating mode.

Preferably, the inside of lower support baffle is hollow structure, one side surface that the storage water tank was kept away from to lower support baffle runs through and installs geotechnique's cloth layer, the reinforcing frame is installed to the inside gomphosis of lower support baffle, and reinforcing frame is located one side that geotechnique's cloth layer is close to the storage water tank, the liquid level inductor is installed to the inner wall of lower support baffle, the liquid level inductor is located one side that reinforcing frame is close to the storage water tank, and the horizontal distance between liquid level inductor and the reinforcing frame is less than the horizontal distance between reinforcing frame and the geotechnique's cloth layer, one side surface that the drain pipe was installed to lower support baffle runs through and is equipped with the outlet, and the outlet is located the side top of drain pipe.

Preferably, the crosspiece that arranges from top to bottom is installed to the inner wall of soil storage box, and the width of crosspiece is less than the width of soil storage box, every group the top slidable mounting of crosspiece has the extension drawer, the below the width of extension drawer is greater than the top extend the drawer, extend one side surface mounting that the drawer kept away from the storage water tank has annular handle, the blend stop is installed at the top of extension drawer, and the blend stop is located the inside of soil storage box, the bottom of soil storage box runs through and installs row material pipe, and the surface mounting of row material pipe has the electronic valve.

Preferably, the cross-section of storage water tank is trapezoidal, the storage water tank is kept away from the one side surface of lower support baffle and is equipped with the interface, and interface and drain pipe gomphosis are connected, the top of storage water tank is equipped with the delivery port, and the inside threaded connection of delivery port has the sealing plug, the storage water tank is kept away from the lower extreme of one side surface of lower support baffle and is installed the connection bottom plate through the screw.

Preferably, the height of the through groove is greater than that of the coaming, a stop block is installed in the upper supporting baffle in a penetrating mode, a limiting block is installed at the bottom of the stop block, a lifting handle is installed at the top of the stop block, and the lifting handle is located above the upper supporting baffle.

Preferably, the top of soil storage case is equipped with the filling mouth, the inside through connection of filling mouth has hollow feed plate, the toper fill is installed at the top of feed plate.

Preferably, the method comprises the following working steps:

s1, before the supporting structure is used for providing foundation pit supporting operation for a deep foundation pit, two groups of upper supporting baffles are respectively embedded and connected into the inside of a channel steel, then a proper number of first filling strips and second filling strips are selected according to the specific horizontal distance between the upper supporting baffles and the inner wall of an embedded groove, the horizontal distance between the upper supporting baffles and the embedded groove is filled through splicing, and then a closed structure is formed among the channel steel, the upper supporting baffles and the embedded groove so as to fill soil blocks, and the connecting and embedding effects between the upper supporting baffles and the channel steel with different specifications are enhanced;

s2, a shallow pit with a proper depth is dug in advance on the outer side of a foundation pit according to the size of the enclosing plate, necessary installation space is provided for the subsequent placement of a motor and an electric telescopic rod, one end of the enclosing plate is inserted into the through groove in a penetrating mode, then a supporting shaft seat is buckled in a groove, one end of the enclosing plate with the motor is located on the outer side of the foundation pit, then the motor is started to rotate positively so as to drive a screw rod to rotate, the screw rod continues to drill holes downwards in the pre-dug shallow pit, and the connection effect between the screw rod and the shallow pit is enhanced;

s3, continuing to excavate the foundation pit by using an excavator, laying the excavated soil blocks on the surface of the coaming circumferentially arranged around the foundation pit, playing a role of dispersing earthwork, simultaneously realizing the nearby placement of earthwork, pulling the lifting handle upwards to lift the stop block when backfilling the earthwork, so that the vertical distance between the coaming and the through groove is exposed, and then lifting one end of the coaming by starting the electric telescopic rod, wherein the soil blocks on the surface of the coaming under the action of the supporting shaft seat fall into the foundation pit along the vertical distance between the coaming and the through groove under the action of gravity;

s4, continuously excavating a foundation pit downwards to form a deep foundation pit, connecting a lower supporting baffle to the lower part of the upper supporting baffle through bolts for supporting treatment of the foundation pit for continuing the upper supporting baffle, detecting the rising speed of groundwater penetrating through a geotechnical cloth layer in the lower supporting baffle through a liquid level sensor for ensuring the safety of the foundation pit when the foundation pit encounters emergency rainfall or stormy weather, selecting a water storage tank with corresponding specification, jogging and connecting a water outlet with a water drain pipe, then plugging the water pipe into the lower supporting baffle through the water outlet for pumping, and temporarily collecting water in the soil wall of the foundation pit through the connection of the water storage tank when the power of a drainage pump is smaller than the rising speed of the water level so as to facilitate subsequent pumping and drainage to cope with drainage waterlogging hazard caused by emergency rainfall or stormy rain;

s5, in the process, the machine is positioned in the foundation pit to carry out the earth excavation operation, in order to reduce the earth transfer pressure and the cost, the excavated earth is injected into the soil storage box through the conical hopper, and the expansion drawer is pulled to the limit through the annular handle, so that the surface of the expansion drawer and the surface of the soil storage box form a stepped structure, the upper and lower access of subsequent operators are facilitated, the self gravity of the supporting structure can be effectively improved, the resisting effect of the supporting structure is enhanced, the on-site backfilling can be realized when the foundation pit is backfilled later, and the earth transfer cost is reduced;

s6, after excavation of the foundation pit is finished, the supporting structure is required to be dismantled, at the moment, the connection relation between the connecting bottom plate and the ground of the foundation pit is firstly relieved, then a group of embedded and connected first filling strips and second filling strips are combined and transversely moved, so that the channel steel, the upper supporting baffle and the soil blocks filled in the embedded grooves can be transferred, the upper supporting baffle and the channel steel are in a loose state, at the moment, the upper supporting baffle and the lower supporting baffle are hoisted and lifted through hoisting equipment, and further, the supporting structure is convenient to assemble and disassemble.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the coaming, the electric telescopic rod and the supporting shaft seat are arranged, when the foundation pit is required to be backfilled, the stop block is pulled upwards through the lifting handle to expose the gap, the electric telescopic rod is started to lift one end of the coaming, and at the moment, soil blocks laid on the surface of the coaming during excavation of the foundation pit can fall back into the foundation pit through the gap, so that the foundation pit is backfilled nearby.

2. According to the invention, the assembly is arranged, the two groups of upper supporting baffles are respectively embedded and connected into the channel steel, then, a proper number of first filling strips and second filling strips are selected according to the specific horizontal distance between the upper supporting baffles and the inner wall of the embedded groove, the horizontal distance between the upper supporting baffles and the embedded groove is filled by splicing, and then, a closed structure is formed among the channel steel, the upper supporting baffles and the embedded groove, so that soil blocks are filled, and the connection embedded effect between the upper supporting baffles and the channel steel with different specifications is enhanced.

3. According to the invention, the lower supporting baffle and the water storage tank are arranged, so that the rising speed of the liquid level in the lower supporting baffle is detected through the liquid level sensor when the emergency rainfall weather or the stormwater weather is met, and then the water storage tank with a proper volume is used, at the moment, the water drainage pipe is plugged into the interior of the plug-in port, and then the connecting bottom plate is arranged and positioned on the bottom wall of the foundation pit through the screw, thereby realizing the transit storage of the water body, and further playing the role of slowing down the damage of waterlogging when more water pumps cannot be called in a short time.

4. According to the invention, the soil storage box is arranged, foundation pit excavation operation is continuously carried out after the water storage box is arranged, the excavated earthwork is injected into the soil storage box, and the surface of the expansion drawer and the surface of the soil storage box form a stepped structure through the annular handle, so that the upper and lower access of subsequent operators into the pit is facilitated, the self gravity of the supporting structure can be effectively promoted, the resisting effect of the supporting structure is enhanced, the foundation pit can be discharged back into the foundation pit through the discharge pipe during subsequent backfilling of the foundation pit, on-site backfilling is realized, and the cost of earth transfer is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the upper support baffle and assembly mounting structure of the present invention;

FIG. 3 is a schematic view of the installation structure of the water storage tank and the soil storage tank of the present invention;

FIG. 4 is a schematic view of the soil box and fill port mounting structure of the present invention;

FIG. 5 is a schematic cross-sectional view of an upper support baffle and coaming of the present invention;

FIG. 6 is a schematic view of the motor, motor telescoping rod, screw rod and insert block mounting structure of the present invention;

FIG. 7 is a schematic view of the structure of FIG. 5 at A according to the present invention;

FIG. 8 is a schematic view of the installation structure of the water storage tank of the present invention;

FIG. 9 is a schematic view of the internal mounting structure of the lower support baffle of the present invention;

FIG. 10 is a schematic view of the lower support baffle mounting structure of the present invention;

FIG. 11 is a schematic view of an assembly mounting structure of the present invention.

In the figure: 1. an upper supporting baffle; 101. a through groove; 102. a lifting handle; 103. a stop block; 104. a groove; 2. coaming plate; 201. a supporting shaft seat; 202. a motor; 203. an electric telescopic rod; 204. a screw rod; 205. inserting blocks; 3. a soil storage tank; 301. a crosspiece; 302. expanding the drawer; 303. a barrier strip; 304. an annular handle; 305. a discharge pipe; 4. a lower supporting baffle; 401. geotechnical cloth layer; 402. a reinforcing frame; 403. a water outlet; 404. a drain pipe; 405. a liquid level sensor; 5. a water storage tank; 501. an interface; 502. a connecting bottom plate; 503. a water outlet; 6. an assembly; 601. channel steel; 602. a fitting groove; 603. a first filling bar; 604. a second filling strip; 7. a filling port; 701. a feed plate; 702. and a conical hopper.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1, 5, 6 and 7, an embodiment of the present invention is provided: the utility model provides a foundation ditch construction is with supporting construction convenient to equipment, including last supporting baffle 1 and bounding wall 2, the inside of assembly 6 contains two sets of channel-section steel 601 that arrange in opposite directions, the inside gomphosis of channel-section steel 601 is installed and is strutted baffle 1, the surface lower extreme of going up supporting baffle 1 has down supporting baffle 4 through bolted connection, the inside of going up supporting baffle 1 is equipped with logical groove 101, the diapire of logical groove 101 is equipped with recess 104, the inside gomphosis of recess 104 is connected with support axle bed 201, bounding wall 2 is installed at the top of support axle bed 201;

the bottom of the coaming 2 is connected with a motor 202 through bolts, the motor 202 is positioned on one side of a supporting shaft seat 201, the output end of the motor 202 is connected with an electric telescopic rod 203, the tail end of the electric telescopic rod 203 is connected with a screw rod 204, and the bottom of the screw rod 204 is connected with an inserting block 205;

the height of the through groove 101 is greater than that of the coaming 2, a stop block 103 is installed in the upper supporting baffle 1 in a penetrating mode, a limiting block is installed at the bottom of the stop block 103, a lifting handle 102 is installed at the top of the stop block 103, and the lifting handle 102 is located above the upper supporting baffle 1.

Specifically, the gap between the coaming 2 and the top wall of the through groove 101 can be intercepted by the stop block 103, so that soil blocks paved on the surface of the coaming 2 are prevented from falling into the foundation pit through the gap, and normal construction of the foundation pit is affected;

providing a connecting space for buckling and lapping between the supporting shaft seat 201 and the through groove 101 through the groove 104, so that one end of the subsequent coaming 2 can be lifted, and the coaming 2 can backfill soil blocks laid on the surface into the foundation pit;

when the foundation pit is required to be backfilled, the stop block 103 is firstly pulled upwards through the lifting handle 102, a gap between the coaming 2 and the top wall of the through groove 101 is exposed, the electric telescopic rod 203 is started to lift one end of the coaming 2, at the moment, soil blocks paved on the surface of the coaming 2 during foundation pit excavation fall back into the foundation pit through the gap, so that the foundation pit nearby backfilling treatment is realized, in addition, earthwork during foundation pit excavation is paved on the surface of the coaming 2, and the stability of the coaming 2 paved on the surface of a soil layer outside the top of the foundation pit can be enhanced through gravity pressurization of the soil blocks;

before the coaming 2 needs to be placed, the motor 202 is placed into a pre-dug shallow pit, the plugging positioning treatment is realized by utilizing the plug 205, then the motor 202 is started, the motor is enabled to rotate forward, the screw rod 204 is driven to rotate, the drilling treatment is realized, the connection depth of the inside of the residual soil layer of the screw rod 204 is enhanced, the connection stability of the coaming 2 is further enhanced, when the coaming 2 needs to be detached after the backfilling of the soil block on the surface of the coaming 2 is finished, the motor 202 is rotated reversely, the coaming 2 is pulled up, and the convenient detachment between the coaming 2 and the soil layer can be realized.

Example two

Referring to fig. 1, 2 and 11, an embodiment of the present invention provides: the utility model provides a foundation ditch construction is with supporting construction convenient to equipment, includes supporting baffle 1 and assembly 6, and the inner wall of channel-section steel 601 is equipped with gomphosis groove 602, and the inside gomphosis of gomphosis groove 602 is installed and is filled the strip 603 No. one, and one side surface that gomphosis groove 602 was kept away from to filling the strip 603 is equipped with the spout of inwards sunk, and No. two filling strips 604 are installed to the inside gomphosis of spout, and No. two filling strips 604 are kept away from one side surface and another group of one surface laminating of filling strip 603 of spout and are connected.

Specifically, two groups of upper supporting baffles 1 are respectively connected into the channel steel 601 in a jogged manner, then according to the specific horizontal distance between the upper supporting baffles 1 and the inner wall of the jogging groove 602, a proper number of first filling strips 603 and second filling strips 604 are selected, the horizontal distance between the upper supporting baffles 1 and the jogging groove 602 is filled through splicing, and then a closed structure is formed among the channel steel 601, the upper supporting baffles 1 and the jogging groove 602 so as to fill soil blocks, the connection jogging effect between the upper supporting baffles 1 and the channel steel 601 in different specifications is enhanced, and when the supporting structure is dismounted subsequently, one group of first filling strips 603 and second filling strips 604 are required to be combined and horizontally moved, so that the soil blocks filled in the channel steel 601, the upper supporting baffles 1 and the jogging groove 602 can be transferred, the upper supporting baffles 1 and the channel steel 601 are in a loose state, and at the moment, the upper supporting baffles 1 and the lower supporting baffles 4 are lifted through lifting equipment, and the convenient dismounting of the supporting structure is realized.

Example III

Referring to fig. 1, 8, 9 and 10, an embodiment of the present invention is provided: the utility model provides a foundation ditch construction is with supporting construction convenient to equipment, including last supporting baffle 1 and lower supporting baffle 4, the inside of lower supporting baffle 4 is hollow structure, the geotechnique layer 401 is installed in the surface penetration of one side of lower supporting baffle 4 away from storage water tank 5, reinforcing frame 402 is installed to the inside gomphosis of lower supporting baffle 4, and reinforcing frame 402 is located geotechnique layer 401 and is close to storage water tank 5's one side, liquid level sensor 405 is installed to the inner wall of lower supporting baffle 4, liquid level sensor 405 is located reinforcing frame 402 and is close to storage water tank 5's one side, and the horizontal distance between liquid level sensor 405 and the reinforcing frame 402 is less than the horizontal distance between reinforcing frame 402 and geotechnique layer 401, the side surface penetration of lower supporting baffle 4 installs drain pipe 404 is equipped with outlet 403, and outlet 403 is located the side top of drain pipe 404;

the drain pipe 404 is installed to one side surface penetration of lower support baffle 4, and drain pipe 404 is kept away from the one end gomphosis of lower support baffle 4 and is connected with storage water tank 5, and storage water tank 5's cross-section is trapezoidal, and storage water tank 5 is kept away from one side surface of lower support baffle 4 and is equipped with interface 501, and interface 501 and drain pipe 404 gomphosis are connected, and the top of storage water tank 5 is equipped with delivery port 503, and the inside threaded connection of delivery port 503 has the sealing plug, and the lower extreme that one side surface was kept away from to lower support baffle 4 to storage water tank 5 is installed connecting plate 502 through the screw.

Specifically, after the lower supporting baffle 4 and the upper supporting baffle 1 are connected through bolts, in order to reduce the influence of deep foundation pit soil wall water seepage on the foundation pit, internal drainage treatment is needed, then a water pipe connected with a drainage pump is plugged into the inside of the drainage outlet 403, the water seepage of the foundation pit soil wall can be filtered through the geotechnical cloth layer 401 with reinforced support resistance by the reinforced frame 402, further water and soil loss is reduced, when the emergency rainfall weather or stormwater weather is met, the rising speed of the water level in the lower supporting baffle 4 is faster, the rising speed of the internal liquid level in the lower supporting baffle 4 under the condition of connecting the drainage pump can be detected through the liquid level sensor 405, and further the water storage tank 5 with a proper volume can be conveniently adjusted, so that the water storage tank 5 with a larger specification can be selected or more drainage pumps can be called when the rising speed is faster, at this moment, the drainage pipe 404 is plugged into the inside of the plug interface 501, then the connecting bottom plate 502 is installed and positioned at the bottom wall of the foundation pit through screws, the transfer storage of a plurality of rows of water bodies is realized, and the effect of slowing down the water logging is achieved when the water storage is unable to be called in a short time;

because the position of the drain pipe 404 is located below the side of the drain port 403, the water in the lower supporting baffle 4 can not overflow while the drain pump works normally, and the drain pressure in the foundation pit is reduced;

after the storm is over or after the additional drainage pump is in place, the water pipe plug can be plugged into the water inlet 503 to realize delayed drainage or parallel drainage, so that the internal drainage protection of the foundation pit is enhanced.

Example IV

Referring to fig. 1, 3 and 4, an embodiment of the present invention is provided: the utility model provides a foundation ditch construction is with supporting construction convenient to equipment, including last supporting baffle 1 and storage box 3, one side surface mounting that storage box 5 kept away from lower supporting baffle 4 has storage box 3, the crosspiece 301 of arranging from top to bottom is installed to the inner wall of storage box 3, and the width of crosspiece 301 is less than the width of storage box 3, the top slidable mounting of every group crosspiece 301 has and expands drawer 302, the width of lower side expands drawer 302 is greater than the top and expands drawer 302, one side surface mounting that expands drawer 302 kept away from storage box 5 has annular handle 304, the blend stop 303 is installed at the top of expanding drawer 302, and the blend stop 303 is located the inside of storage box 3, the bottom of storage box 3 runs through and installs row material pipe 305, and row material pipe 305's surface mounting has the electronic valve.

The top of the soil storage tank 3 is provided with a filling opening 7, a hollow feeding plate 701 is connected in a penetrating manner in the filling opening 7, and a conical hopper 702 is arranged at the top of the feeding plate 701.

Specifically, the excavation operation of the foundation pit is continued after the water storage tank 5 is installed, in order to reduce the pressure and cost of earth transfer, the excavated earth is injected into the soil storage tank 3 through the conical hopper 702 and the feeding plate 701, and the expansion drawer 302 is pulled to the limit through the annular handle 304, so that the surface of the expansion drawer 302 and the surface of the soil storage tank 3 form a stepped structure, the pit entering and the pit entering are convenient for the subsequent operators, the self gravity of the supporting structure can be effectively promoted, the resisting effect of the supporting structure is enhanced, the electronic valve can be opened when the foundation pit is backfilled later, the earth in the soil storage tank 3 can be discharged back into the foundation pit through the discharge pipe 305, the on-site backfilling is realized, and the cost of earth transfer is reduced;

the installation of the barrier strips 303 can reduce the possibility that the expansion drawer 302 stretches out of the interior of the soil storage box 3, so that an effective storage structure is formed, and in addition, the installation of the crosspiece 301 can facilitate the sliding installation of the expansion drawer 302 and provide support for providing a smooth filling channel after the expansion drawer 302 stretches.

After the filling is finished, in order to reduce the interference of rainwater on soil blocks in the soil storage box 3, the wood plate can be placed on the surface of the filling opening 7, so that a corresponding shielding effect is achieved.

Working principle: before the foundation pit supporting structure is used for providing foundation pit supporting operation for a deep foundation pit, two groups of upper supporting baffles 1 are respectively embedded and connected into the inside of a channel steel 601, then a proper number of first filling strips 603 and second filling strips 604 are selected according to the specific horizontal distance between the upper supporting baffles 1 and the inner wall of an embedded groove 602, the horizontal distance between the upper supporting baffles 1 and the embedded groove 602 is filled through splicing, and then a closed structure is formed among the channel steel 601, the upper supporting baffles 1 and the embedded groove 602 so as to fill soil blocks, and the connecting and embedding effects between the upper supporting baffles 1 and the channel steel 601 in different specifications are enhanced;

a shallow pit with proper depth is dug in advance on the outer side of a foundation pit according to the size of the coaming 2, necessary installation space is provided for the subsequent placement of the motor 202 and the electric telescopic rod 203, then one end of the coaming 2 is inserted into the through groove 101 in a penetrating way, then the supporting shaft seat 201 is buckled in the groove 104, one end of the coaming 2 with the motor 202 is positioned on the outer side of the foundation pit, then the motor 202 is started to rotate positively so as to drive the screw rod 204 to rotate, the screw rod 204 continues to drill downwards in the pre-dug shallow pit, and the connection effect between the screw rod 204 and the shallow pit is enhanced;

then, the excavator is utilized to continue the foundation pit excavation operation, the excavated soil blocks are paved on the surface of the coaming 2 circumferentially arranged around the foundation pit, the close placement of earthwork can be realized while the earthwork dispersion function is achieved, the lifting handle 102 is pulled upwards during the subsequent backfilling of the earthwork, the stop block 103 is lifted, so that the vertical distance between the coaming 2 and the through groove 101 is exposed, then one end of the coaming 2 can be lifted by starting the electric telescopic rod 203, and under the action of the supporting shaft seat 201, the soil blocks on the surface of the coaming 2 fall into the foundation pit through the vertical distance between the coaming 2 and the through groove 101 under the action of gravity and then along the surface of the upper supporting baffle 1;

the foundation pit excavation is continuously carried out downwards so as to form a deep foundation pit, the lower supporting baffle 4 is connected to the lower part of the upper supporting baffle 1 through bolts for continuing the foundation pit supporting treatment of the upper supporting baffle 1, when the emergency rainfall or the stormy weather is met during construction, the water draining operation is required to be carried out for ensuring the safety of the foundation pit, the water storage tank 5 with corresponding specification is selected for detecting the rising speed of the ground water permeated through the geotechnical cloth layer 401 in the lower supporting baffle 4 through the liquid level sensor 405, the water outlet 503 is connected with the water draining pipe 404 in a jogged manner, then the water pipe is plugged into the lower supporting baffle 4 through the water outlet 403 for pumping, and when the power of the water draining pump is lower than the rising speed of the water level, the water in the soil wall of the foundation pit can be collected temporarily through the connection of the water storage tank 5 so as to facilitate the subsequent pumping and draining to cope with the drainage waterlogging hazard caused by the emergency rainfall or the stormy weather;

in the process, the machine is positioned in the foundation pit to carry out the earth digging operation, in order to reduce the earth transfer pressure and cost, the excavated earth is injected into the soil storage box 3 through the conical hopper 702, and the expansion drawer 302 is pulled to the limit through the annular handle 304, so that the surface of the expansion drawer 302 and the surface of the soil storage box 3 form a stepped structure, the upper and lower entrance and the pit entry of subsequent operators are convenient, the self gravity of the supporting structure can be effectively promoted, the resisting effect of the supporting structure is enhanced, the on-site backfilling can be realized during the subsequent backfilling of the foundation pit, and the earth transfer cost is reduced;

after the excavation of the foundation pit is finished, the supporting structure needs to be dismantled, at the moment, the connection relation between the connecting bottom plate 502 and the ground of the foundation pit is firstly relieved, then a group of first filling strips 603 and second filling strips 604 which are connected in a jogged mode are combined and transversely moved, so that the channel steel 601, the upper supporting baffle 1 and the soil blocks filled in the jogged grooves 602 can be transferred, the upper supporting baffle 1 and the channel steel 601 are in a loose state, at the moment, the upper supporting baffle 1 and the lower supporting baffle 4 are hoisted and lifted through hoisting equipment, and further, the supporting structure is convenient to assemble and disassemble.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a foundation ditch construction is with supporting construction convenient to equipment, its characterized in that includes upper supporting baffle, lower supporting baffle and assembly, the inside of assembly contains two sets of channel-section steel that arrange in opposite directions, the inside gomphosis of channel-section steel is installed and is supported the baffle, the surface lower extreme of going up the supporting baffle has lower supporting baffle through bolted connection, the inside of going up the supporting baffle is equipped with logical groove, the diapire of logical groove is equipped with the recess, the inside gomphosis of recess is connected with the support axle bed, the bounding wall is installed at the top of support axle bed;

the bottom of the coaming is connected with a motor through a bolt, the motor is positioned on one side of the supporting shaft seat, the output end of the motor is connected with an electric telescopic rod, the tail end of the electric telescopic rod is connected with a screw rod, and the bottom of the screw rod is connected with an inserting block;

a drain pipe penetrates through the surface of one side of the lower supporting baffle, a water storage tank is connected with one end of the drain pipe, which is far away from the lower supporting baffle, in a jogged manner, and a soil storage tank is arranged on the surface of one side of the water storage tank, which is far away from the lower supporting baffle;

the height of logical groove is greater than the height of bounding wall, go up the inside of supporting baffle and run through and install the dog, and the stopper is installed to the bottom of dog, the lifting handle is installed at the top of dog, and lifting handle is located the top of last supporting baffle.

2. The foundation pit construction supporting structure convenient to assemble according to claim 1, wherein an embedded groove is formed in the inner wall of the channel steel, a first filling bar is embedded in the embedded groove, an inwards-sunken sliding groove is formed in the surface of one side, away from the embedded groove, of the first filling bar, a second filling bar is embedded in the sliding groove, and the surface of one side, away from the sliding groove, of the second filling bar is in fit connection with the surface of the other group of the first filling bars.

3. The supporting structure for foundation pit construction convenient to assemble according to claim 2, wherein the inside of the lower supporting baffle is of a hollow structure, a geotechnical cloth layer is installed on one side surface of the lower supporting baffle far away from the water storage tank in a penetrating manner, a reinforcing frame is installed in an embedded manner in the lower supporting baffle, the reinforcing frame is located on one side of the geotechnical cloth layer close to the water storage tank, a liquid level sensor is installed on the inner wall of the lower supporting baffle, the liquid level sensor is located on one side of the reinforcing frame close to the water storage tank, the horizontal distance between the liquid level sensor and the reinforcing frame is smaller than the horizontal distance between the reinforcing frame and the geotechnical cloth layer, a water outlet is formed in the surface of one side of the lower supporting baffle, where the water outlet is installed in a penetrating manner, and the water outlet is located above the side of the water outlet.

4. The foundation pit construction supporting structure convenient to assemble according to claim 3, wherein a crosspiece which is arranged up and down is arranged on the inner wall of the soil storage box, the width of the crosspiece is smaller than that of the soil storage box, an expansion drawer is slidably arranged at the top of each crosspiece, the width of the expansion drawer below is larger than that of the expansion drawer above, an annular handle is arranged on the surface of one side, far away from the water storage box, of the expansion drawer, a barrier strip is arranged at the top of the expansion drawer and is positioned in the soil storage box, a discharge pipe is arranged at the bottom of the soil storage box in a penetrating mode, and an electronic valve is arranged on the surface of the discharge pipe.

5. The foundation pit construction supporting structure convenient to assemble according to claim 4, wherein the section of the water storage tank is trapezoid, an inserting port is formed in the surface of one side, far away from the lower supporting baffle, of the water storage tank, the inserting port is connected with the drain pipe in an embedded mode, a water outlet is formed in the top of the water storage tank, a sealing plug is connected with the inner thread of the water outlet, and a connecting bottom plate is mounted at the lower end of the surface of one side, far away from the lower supporting baffle, of the water storage tank through screws.

6. The foundation pit construction supporting structure convenient to assemble according to claim 5, wherein a filling opening is formed in the top of the soil storage box, a hollow feeding plate is connected to the inside of the filling opening in a penetrating manner, and a conical hopper is mounted on the top of the feeding plate.

7. A method of operating a foundation pit construction support structure according to claim 6 for ease of assembly, the method comprising the steps of:

s1, before the supporting structure is used for providing foundation pit supporting operation for a deep foundation pit, two groups of upper supporting baffles are respectively embedded and connected into the inside of a channel steel, then a proper number of first filling strips and second filling strips are selected according to the specific horizontal distance between the upper supporting baffles and the inner wall of an embedded groove, the horizontal distance between the upper supporting baffles and the embedded groove is filled through splicing, and then a closed structure is formed among the channel steel, the upper supporting baffles and the embedded groove so as to fill soil blocks, and the connecting and embedding effects between the upper supporting baffles and the channel steel with different specifications are enhanced;

s2, a shallow pit with a proper depth is dug in advance on the outer side of a foundation pit according to the size of the enclosing plate, necessary installation space is provided for the subsequent placement of a motor and an electric telescopic rod, one end of the enclosing plate is inserted into the through groove in a penetrating mode, then a supporting shaft seat is buckled in a groove, one end of the enclosing plate with the motor is located on the outer side of the foundation pit, then the motor is started to rotate positively so as to drive a screw rod to rotate, the screw rod continues to drill holes downwards in the pre-dug shallow pit, and the connection effect between the screw rod and the shallow pit is enhanced;

s3, continuing to excavate the foundation pit by using an excavator, laying the excavated soil blocks on the surface of the coaming circumferentially arranged around the foundation pit, playing a role of dispersing earthwork, simultaneously realizing the nearby placement of earthwork, pulling the lifting handle upwards to lift the stop block when backfilling the earthwork, so that the vertical distance between the coaming and the through groove is exposed, and then lifting one end of the coaming by starting the electric telescopic rod, wherein the soil blocks on the surface of the coaming under the action of the supporting shaft seat fall into the foundation pit along the vertical distance between the coaming and the through groove under the action of gravity;

s4, continuously excavating a foundation pit downwards to form a deep foundation pit, connecting a lower supporting baffle to the lower part of the upper supporting baffle through bolts for supporting treatment of the foundation pit for continuing the upper supporting baffle, detecting the rising speed of groundwater penetrating through a geotechnical cloth layer in the lower supporting baffle through a liquid level sensor for ensuring the safety of the foundation pit when the foundation pit encounters emergency rainfall or stormy weather, selecting a water storage tank with corresponding specification, jogging and connecting a water outlet with a water drain pipe, then plugging the water pipe into the lower supporting baffle through the water outlet for pumping, and temporarily collecting water in the soil wall of the foundation pit through the connection of the water storage tank when the power of a drainage pump is smaller than the rising speed of the water level so as to facilitate subsequent pumping and drainage to cope with drainage waterlogging hazard caused by emergency rainfall or stormy rain;

s5, in the process, the machine is positioned in the foundation pit to carry out the earth excavation operation, in order to reduce the earth transfer pressure and the cost, the excavated earth is injected into the soil storage box through the conical hopper, and the expansion drawer is pulled to the limit through the annular handle, so that the surface of the expansion drawer and the surface of the soil storage box form a stepped structure, the upper and lower access of subsequent operators are facilitated, the self gravity of the supporting structure can be effectively improved, the resisting effect of the supporting structure is enhanced, the on-site backfilling can be realized when the foundation pit is backfilled later, and the earth transfer cost is reduced;

s6, after excavation of the foundation pit is finished, the supporting structure is required to be dismantled, at the moment, the connection relation between the connecting bottom plate and the ground of the foundation pit is firstly relieved, then a group of embedded and connected first filling strips and second filling strips are combined and transversely moved, so that the channel steel, the upper supporting baffle and the soil blocks filled in the embedded grooves can be transferred, the upper supporting baffle and the channel steel are in a loose state, at the moment, the upper supporting baffle and the lower supporting baffle are hoisted and lifted through hoisting equipment, and further, the supporting structure is convenient to assemble and disassemble.