A soft soil deep foundation pit earthwork excavation transmission device and transmission method thereof

Abstract

The present invention discloses a soft soil deep foundation pit earthwork excavation transmission equipment and a transmission method thereof, which relates to the field of deep foundation pit construction, including a bottom plate, a side guard, a conveyor belt and a collection bin, the side of the bottom plate is installed with a positioning baffle and a fixing frame, the interior of the bottom plate includes a first connecting plate, a connecting rod, an extrusion plate, and the first connecting plate is installed at the bottom end of the bottom plate, the connecting rod is provided with multiple groups, the extrusion plate is installed below the connecting rod, and a plug rod is installed on the side of the positioning baffle, and the positioning baffle is connected to the bottom plate by the plug rod. The present invention can support the excavator through the bottom plate during the excavation process, and extrude the soft soil through the bottom plate, and trim the soil at the bottom end of the deep foundation pit, thereby effectively preventing the excavator and other mobile equipment from getting stuck inside the deep foundation pit, reducing the leveling process of the bottom end of the deep foundation pit when the equipment is operating, and improving the use efficiency.

Description

Technical Field

[0001] The invention relates to the field of foundation pit construction, and in particular to a soft soil deep foundation pit earthwork excavation transmission device and a transmission method thereof. Background Art

[0002] A deep foundation pit refers to a deep foundation pit excavated during the construction process for the purpose of constructing an underground structure or underground space. Its depth is generally more than 5 meters, and because a support system is required to prevent the foundation pit from collapsing, the design and construction of a deep foundation pit is often more complex and challenging, especially in some soil environments. Due to soil composition, moisture content and other reasons, the soil is soft, and when the excavation equipment moves in the foundation pit, it will squeeze and deform the soil. Excessively deformed soil will make it difficult for the excavation equipment to move, and even cause the soil to collapse. Therefore, appropriate equipment is needed to excavate and transport the soft soil deep foundation pit.

[0003] The prior art, such as a method for excavating and transporting earthwork in a soft soil deep foundation pit disclosed in China Publication No. CN117144925A, includes: S1, mechanical arrangement: arranging the construction position of the crawler wheel bucket excavator, setting up the belt conveyor, arranging the earthwork compression and filling device and the flushing device through comprehensive planning of the foundation pit support, the construction sequence of the foundation pit bottom plate, and the walking route of the muck truck;

[0004] S2. Earthwork excavation: crawler wheel bucket excavator excavates earthwork, while ordinary excavators excavate earthwork at the corners of the foundation pit and at places with complex foundation pit support structures. The earthwork is transferred to the centralized loading area in front of the crawler wheel bucket excavator by an inverted vehicle;

[0005] S3. Earthwork transmission: Earthwork is continuously transported to the belt conveyor through the conveyor belt installed on the crawler wheel bucket excavator. As the excavation depth of the foundation pit increases, the belt conveyor needs to be adjusted and erected as a high-angle belt conveyor.

[0006] S4, earth compression: the earth enters the compression chamber and is compacted by the hydraulic roller structure;

[0007] S5. Earth filling: When the earth is compacted and reaches the loading capacity of the dump truck bucket, the bottom plate of the compression chamber is opened and the earth enters the dump truck;

[0008] S6. Washing the vehicle: After loading is completed, the washing device automatically starts to wash the vehicle. After the washing is completed, the muck truck drives out;

[0009] S7, guiding vehicles to enter: after the earthwork is compressed again, guide the rear vehicle to enter under the compression and filling device, and repeat steps S5 and S6.

[0010] The prior art, such as the Chinese patent number CN118292456A, discloses a method for excavating the vertical side of a deep pit foundation, comprising:

[0011] Retaining plates are installed at intervals on the vertical sides of the deep pit foundation close to the bottom of the foundation pit. The vertical sides of the deep pit foundation at the intervals between the retaining plates are for excavation, and the vertical sides of the deep pit foundation blocked by the retaining plates are for the earth to be excavated.

[0012] A sunken slag pit is excavated at the bottom of the foundation pit below the excavated earthwork. The slag pits are multiple and spaced apart. There are spacers between the slag pits, so that one bottom of the excavated earthwork and the earthwork to be excavated corresponds to two slag pits.

[0013] The forklift drives the bucket to dig in the digging direction.

[0014] In the above method, although a supporting structure is used to shield the soil during soil excavation, the ground soil at the bottom of the deep foundation pit is still relatively soft. When the excavation equipment moves, the ground will sink, making it inconvenient to move the subsequent excavation equipment. Secondly, during the excavation process, although a supporting structure is used to limit the outer wall of the soil layer, the supporting structure will block the excavation equipment from excavating the soil. Summary of the invention

[0015] Based on this, the purpose of the present invention is to provide a soft soil deep foundation pit earth excavation transmission equipment and a transmission method thereof, so as to solve the technical problem that the ground surface is relatively soft and easily blocked during the excavation process.

[0016] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a soft soil deep foundation pit earthwork excavation and transmission equipment, including a base plate, side guards, a conveyor belt and a collection bin, the base plate is provided with a positioning baffle and a fixing frame on the side close to the deep foundation pit excavation position, the base plate includes a first connecting plate, a connecting rod and an extrusion plate inside, the first connecting plate is installed at the bottom end of the base plate, the connecting rod is provided with multiple groups, the extrusion plate is installed below the connecting rod, the side of the positioning baffle is provided with a plug rod, the positioning baffle is connected to the base plate by the plug rod, the top of the positioning baffle is provided with multiple groups of limit hanging rings and a group of slide grooves, the fixing frame is provided with a plurality of limit hanging rings and a group of slide grooves, and the fixing frame is provided with a plurality of limit hanging rings and a plurality of slide grooves. The slide trough is slidably connected with the positioning baffle, and a baffle, a support rod and a positioning rod are installed on the side of the fixed frame. A plurality of groups of spring rods are installed on the back of the baffle, and the baffle is slidably connected with the fixed frame through the spring rod. A slide plate is installed at the bottom end of the support rod, and the fixed frame is installed above the slide plate. The slide plate is slidably connected with the slide trough, and a lever is installed on the back of the fixed frame. A transportation structure is installed inside the deep foundation pit to transport soil, the bottom end of the conveyor belt is located inside the deep foundation pit, the top end of the conveyor belt is located outside the deep foundation pit, the collecting bin is located below the top end of the conveyor belt, and an extrusion device is installed inside the collecting bin for extruding soil.

[0017] By adopting the above technical solution, the gravity of the excavator can be buffered by the bottom plate to reduce the sinking of the excavator. Then, the soft soil can be squeezed by the bottom plate to level the ground at the bottom of the deep foundation pit, thereby improving the use effect.

[0018] The present invention is further configured such that an empty slot is provided inside the first connecting plate, the insertion rod is inserted into the first connecting plate through the empty slot, a plurality of groups of insertion holes are provided on the inner wall of the insertion rod, a fixing rod is installed inside the insertion hole, and the insertion hole is snap-connected with the first connecting plate through the fixing rod.

[0019] As a preferred embodiment, it is convenient to connect the bottom plate with the positioning baffle, thereby improving the connection effect.

[0020] The present invention is further configured such that the limit hanging ring is located on the side of the slide, and the top of the slide protrudes and the middle is recessed, a pin is installed at the bottom end of the positioning baffle, the pin is engaged with the ground, and a plurality of drainage grooves are provided on the inner wall of the slide.

[0021] As a preferred embodiment, the positioning baffle can be conveniently moved by a limiting hanging ring, the limiting baffle can be fixed by a pin, and the drainage groove can drain the accumulated water.

[0022] The present invention is further configured such that the outer wall of the fixing frame is provided with a plurality of sets of rings, the spring rod is slidably connected to the fixing frame via the rings, a plurality of sets of positioning rods are provided between the support rods, and the positioning rods limit the baffle.

[0023] As a preferred embodiment, the baffle is moved by a spring rod to reduce the impact force when there is soil impact.

[0024] The present invention is further configured such that cleaning plates are provided on both sides of the slide plate, the cleaning plates are inclined metal structures, and the top ends of the cleaning plates are located outside the slide grooves.

[0025] As a preferred embodiment, it is convenient to clean and scrape away impurities through the cleaning plate when the slide plate moves.

[0026] The present invention is further configured such that a second connecting plate is connected to a side surface of the shifting rod, the shifting rod is fixed between the fixing frames via the second connecting plate, and the shifting rod is a structure that is small at the top and large at the bottom.

[0027] As a preferred embodiment, it is convenient for the bucket to adjust the fixed frame.

[0028] The present invention is further configured as follows: support legs are installed on both sides of the collecting bin, the collecting bin is installed on the ground through the support legs, a clamp is installed inside the collecting bin, a plurality of groups of first driving cylinders are installed on the inner wall of the collecting bin, the output end of the first driving cylinder is fixedly connected to the clamp, and the clamp is vertically arranged, a discharge plate is installed at the bottom end of the collecting bin, a second driving cylinder is installed at the bottom end of the discharge plate, an end of the second driving cylinder is rotatably connected to the collecting bin, and the second driving cylinder drives the discharge plate to unfold.

[0029] Preferably, the soil is clamped and squeezed by a clamping plate collecting bin, and after squeezing, a discharge plate is opened by a second driving cylinder to discharge the squeezed soil.

[0030] The present invention is further configured such that the side guard is a solid structure, and the side guard limits the edge of the deep foundation pit.

[0031] As a preferred embodiment, the stability of the deep foundation pit can be improved.

[0032] The present invention is further configured such that the side guard is a hollow structure with an opening at the top, and a transport structure is installed inside the side guard, the transport structure includes an upper conveyor belt and a lower conveyor belt, the upper conveyor belt is flush with the excavation direction, the lower conveyor belt is perpendicular to the excavation direction, and the lower conveyor belt is located below the collecting bin, and the upper conveyor belt is located above the lower conveyor belt.

[0033] As a preferred embodiment, the excavated soil can be easily transported.

[0034] The present invention is further configured as a method for excavating and transmitting earthwork in a soft soil deep foundation pit, comprising the following steps:

[0035] Step 1: The excavator enters the deep foundation pit, and then places the bottom plate at the edge of the deep foundation pit. The bucket teeth of the excavator bucket are inserted into the limit hanging ring. The bottom plate is moved to the bottom of the deep foundation pit by the bucket, and the excavator drives the bottom plate to move to the construction position. The bottom plate is attached to the side of the construction facade, and then the bucket is separated from the limit hanging ring, and the fixed frame is aligned with the construction facade.

[0036] Step 2: The excavator moves to the top of the bottom plate, and squeezes the soil at the bottom of the deep foundation pit through the bottom plate. The bucket fits with the lever, and the bucket pulls the lever to move. The lever drives the fixed frame to move, so that the position of the fixed frame is adjusted. The fixed frame can be moved to a position that has not been excavated. The soil is excavated through the bucket. As the excavator moves and constructs on the bottom plate, the soft soil will be squeezed and compressed as a whole to make the soft soil on the ground compact;

[0037] Step 3: The soil is transported to the conveyor belt, which is started to drive the soil into the collection bin and collect the soil by gravity. When a large amount of soil is accumulated in the collection bin, the first driving cylinder is started to push the clamping plate to squeeze and compress the soil, and then the second driving cylinder is started to open the discharge plate, and then the first driving cylinder is started to open the clamping plate, and the soil falls downward and falls into the collection vehicle, thereby achieving soil compaction and improving soil transportation efficiency.

[0038] Step 4: After the soil on the construction facade on the side of the fixed frame is excavated, the excavator pushes and adjusts the fixed frame through the hopper to expose the partially blocked construction facade to the outside, and the excavator moves so that the hopper can align with the exposed construction facade. The excavator continues to excavate the exposed soil, and the cycle is repeated. After the outer wall of the excavable soil on the construction facade is excavated, the fixed frame moves to the edge of the positioning baffle. At this time, the excavator moves the fixed frame through the hopper to move the fixed frame to the other direction of the positioning baffle, exposing the remaining construction facade to the outside, so that the excavator can fully excavate the soil;

[0039] Step 5: After the excavation is completed, the excavator comes down from the bottom plate, and then the excavator uses the hopper to pull the bottom plate up from above the soil again through the limit hanging ring. The excavator moves, driving the bottom plate to move to the excavated ground, and places the bottom plate on the soft soil that has just been excavated. Then the excavator continues to move above the bottom plate to continue excavating the subsequent soil.

[0040] In summary, the present invention mainly has the following beneficial effects:

[0041] 1. The present invention can support the excavator through the bottom plate, positioning baffle and fixing frame during the excavation process, and can squeeze the soft soil through the bottom plate to trim the soil at the bottom of the deep foundation pit, thereby effectively preventing the excavator and other mobile equipment from getting stuck inside the deep foundation pit, reducing the leveling process of the bottom of the deep foundation pit during equipment operation, and improving the use efficiency.

[0042] 2. The present invention can collect the soft soil after excavation through the conveyor belt and collecting bin, and continue to push the clamping plate through the first driving cylinder in the collecting bin, so that the clamping plate squeezes and compresses the soil, and then the second driving cylinder is started to open the discharge plate, and the compressed soil is discharged from the collecting bin, thereby compressing the soil and improving the transportation effect of the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a structural schematic diagram of the deep foundation pit earth excavation process of the present invention;

[0044] Figure 2 It is a structural schematic diagram of the bottom plate and the fixing frame of the present invention;

[0045] Figure 3 It is a schematic diagram of the explosion structure of the bottom plate of the present invention;

[0046] Figure 4 It is a structural schematic diagram of the positioning frame of the present invention;

[0047] Figure 5 It is a structural schematic diagram of the fixing frame of the present invention;

[0048] Figure 6 It is a structural schematic diagram of the collection bin of the present invention;

[0049] Figure 7 This is a schematic diagram of the structure of the bottom end of the collecting bin of the present invention;

[0050] Figure 8 is a schematic structural diagram of a second embodiment of the present invention;

[0051] Fig. 9 Schematic diagram of the drainage structure of the second embodiment of the present invention.

[0052] Description of reference numerals:

[0053] 1. Bottom plate; 101. First connecting plate; 102. Connecting rod; 103. Extrusion plate; 2. Positioning baffle; 201. Insertion rod; 2011. Insertion hole; 202. Limiting hanging ring; 2021. Groove; 203. Slide; 204. Pin; 205. Drainage trough; 3. Fixing frame; 301. Baffle; 3011. Spring rod; 302. Support rod; 303. Positioning rod; 304. Slide plate; 3041. Cleaning plate; 305. Ring; 306. Push rod; 3061. Second connecting plate; 4. Side guard; 401. Upper conveyor belt; 402. Lower conveyor belt; 5. Transport belt; 6. Collection bin; 601. Support leg; 602. Clamp; 6021. First driving cylinder; 603. Discharge plate; 6031. Second driving cylinder; 7. Main pipe; 701. Drainage branch pipe. DETAILED DESCRIPTION

[0054] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0055] The following describes an embodiment of the present invention based on its overall structure.

[0056] First embodiment:

[0057] See also Figures 1 to 7, soft soil deep foundation pit earthwork excavation and transmission equipment, including a base plate 1, a side guard 4, a conveyor belt 5 and a collecting bin 6, a positioning baffle 2 and a fixing frame 3 are installed on the side of the base plate 1, the interior of the base plate 1 includes a first connecting plate 101, a connecting rod 102, and an extrusion plate 103, the first connecting plate 101 is installed at the bottom end of the base plate 1, the connecting rod 102 is provided with multiple groups, the extrusion plate 103 is installed below the connecting rod 102, a plug rod 201 is installed on the side of the positioning baffle 2, the positioning baffle 2 is connected to the base plate 1 by the plug rod 201, a plurality of limit hanging rings 202 and a group of slide grooves 203 are installed on the top of the positioning baffle 2, the fixing frame 3 is slidably connected to the positioning baffle 2 through the slide groove 203, and a baffle 301, a support 203 and a support 201 are installed on the side of the fixing frame 3 The support rods 302 and the positioning rods 303, the back of the baffle 301 is equipped with multiple groups of spring rods 3011, the outer wall of the fixing frame 3 is provided with multiple groups of rings 305, the spring rods 3011 are slidably connected with the fixing frame 3 through the rings 305, multiple groups of positioning rods 303 are provided between the support rods 302, the positioning rods 303 limit the baffle 301, the bottom end of the support rods 302 is installed with a slide plate 304, the fixing frame 3 is installed above the slide plate 304, the slide plate 304 is slidably connected with the slide groove 203, and the back of the fixing frame 3 is installed with a lever 306, which can increase the contact area with the soft soil through the bottom plate 1, reduce the sinking of the excavator when the excavator is excavating, and evenly distribute the gravity of the excavator on the soft soil to compact the soft soil.

[0058] Please refer to 1. Figure 6 and Figure 7 The side guard 4 is a solid structure, and the side guard 4 limits the edge of the deep foundation pit. A transport structure is installed inside the deep foundation pit to transport soil. The bottom end of the conveyor belt 5 is located inside the deep foundation pit, and the top end of the conveyor belt 5 is located outside the deep foundation pit. The collecting bin 6 is located below the top end of the conveyor belt 5. An extrusion device is installed inside the collecting bin 6. Support legs 601 are installed on both sides of the collecting bin 6. The collecting bin 6 is installed on the ground through the support legs 601. A splint 602 is installed inside the collecting bin 6. Multiple groups of first driving cylinders 602 are installed on the inner wall of the collecting bin 6. 1. The output end of the first driving cylinder 6021 is fixedly connected to the clamping plate 602, and the clamping plate 602 is vertically arranged. A discharge plate 603 is installed at the bottom end of the collecting bin 6. A second driving cylinder 6031 is installed at the bottom end of the discharge plate 603. The end of the second driving cylinder 6031 is rotatably connected to the collecting bin 6. The second driving cylinder 6031 drives the discharge plate 603 to unfold, which can conveniently squeeze the soft soil. After squeezing, the discharge plate 603 is driven to open by the second driving cylinder 6031 to discharge the compressed soil.

[0059] See also Figures 2 to 4An empty slot is provided inside the first connecting plate 101, and the insertion rod 201 is inserted into the first connecting plate 101 through the empty slot. A plurality of groups of insertion holes 2011 are provided on the inner wall of the insertion rod 201, and a fixing rod is installed inside the insertion hole 2011. The insertion hole 2011 is engaged with the first connecting plate 101 through the fixing rod, so that the positioning baffle 2 can be conveniently connected to the bottom plate 1, and a plurality of groups of insertion holes 2011 are provided, so that the distance between the bottom plate 1 and the positioning baffle 2 can be changed.

[0060] In the above embodiments, please refer to Figures 2 to 4 The limiting hanging ring 202 is located on the side of the slide groove 203, and the top of the slide groove 203 protrudes and the middle is recessed. A pin 204 is installed at the bottom of the positioning baffle 2, and the pin 204 is engaged with the ground. The inner wall of the slide groove 203 is provided with multiple sets of drainage grooves 205, which can facilitate the fixing of the positioning baffle 2.

[0061] In the above embodiments, please refer to Figure 5 A cleaning plate 3041 is provided on both sides of the slide plate 304. The cleaning plate 3041 is an inclined metal structure, and the top of the cleaning plate 3041 is located on the outside of the slide groove 203, which can facilitate cleaning of the inside of the slide groove 203.

[0062] In the above embodiments, please refer to Figure 5 The side of the lever 306 is connected to a second connecting plate 3061, and the lever 306 is fixed between the fixing frames 3 through the second connecting plate 3061. The lever 306 is a structure with a small top and a large bottom, which facilitates the excavator bucket to adjust and move the fixing frame 3 through the bucket teeth.

[0063] Second embodiment:

[0064] See also Figure 7 and Figure 8 This is the second embodiment of the present application, and its specific difference from the first embodiment is that the side guard 4 is a hollow structure with an opening at the top, and a transport structure is installed inside the side guard 4, the transport structure includes an upper conveyor belt 401 and a lower conveyor belt 402, the upper conveyor belt 401 is flush with the excavation direction, the lower conveyor belt 402 is perpendicular to the excavation direction, and the lower conveyor belt 402 is located below the collecting bin 6, and the upper conveyor belt 401 is located above the lower conveyor belt 402, which can facilitate the transportation of soil from the excavator, and there is no need to use additional mobile equipment to move inside the deep foundation pit. The soil is sent into the upper conveyor belt 401 by the excavator, and the upper conveyor belt 401 drives the soil to enter the lower conveyor belt 402, and the lower conveyor belt 402 moves the soil to the vicinity of the collecting bin 6, which can reduce the movement of soil by mobile equipment and improve utilization efficiency.

[0065] In the above embodiments, please refer to Fig. 9A main pipe 7 is also installed inside the soil, and multiple groups of drainage branch pipes 701 are connected to the side of the main pipe 7. The drainage branch pipes 701 are connected to the inside of the edge protection 4. Water can enter the main pipe 7 through the drainage branch pipes 701, thereby discharging the accumulated rainwater.

[0066] When the present invention is performing deep foundation pit operations, the excavator enters the deep foundation pit, and then places the bottom plate 1 at the edge of the deep foundation pit. The bucket teeth of the excavator bucket are inserted into the limiting hanging ring 202, and the bottom plate 1 is moved to the bottom end of the deep foundation pit by the bucket. The bottom plate 1 is driven by the excavator to move to the construction position, so that the bottom plate 1 is attached to the side of the construction facade, and then the bucket is separated from the limiting hanging ring 202, and the fixing frame 3 is aligned with the construction facade. Then the excavator moves, and the excavator moves to the top of the bottom plate 1. The excavator squeezes the soil at the bottom end of the deep foundation pit through the bottom plate 1, thereby increasing the contact area and reducing the excavation. The excavator squeezes the soil to prevent the excavator from sinking into the soil. The bucket fits with the lever 306, and the bucket pulls the lever 306 to move. The lever 306 drives the fixed frame 3 to move, so that the position of the fixed frame 3 is adjusted, and the fixed frame 3 can be moved to a position that has not been excavated. The soil is excavated by the bucket. During the excavation process, the bottom plate 1 can effectively reduce the damage to the soil caused by shaking during the use of the excavator, thereby improving the use effect. As the excavator moves and constructs on the bottom plate 1, the soft soil will be squeezed and compressed as a whole, making the soft soil on the ground compact, thereby reducing the probability of the excavator track being stuck with the soft soil.

[0067] Then, the soil is transported by a mobile device (such as a transport vehicle) to the conveyor belt 5. The conveyor belt 5 is started to drive the soil into the collection bin 6, and the soil is collected by gravity. When a large amount of soil is accumulated in the collection bin 6, the first driving cylinder 6021 is started to push the clamping plate 602 to squeeze and compress the soil. Then, the second driving cylinder 6031 is started to open the discharge plate 603. Then, the first driving cylinder 6021 is started to open the clamping plate 602, and the soil falls downward and falls into the collection vehicle, thereby achieving soil compaction and improving soil transportation efficiency.

[0068] As soil excavation proceeds, after the soil of the construction facade on the side of the fixed frame 3 is excavated, the excavator pushes and adjusts the fixed frame 3 through the hopper to expose the partially blocked construction facade to the outside, and the excavator moves so that the hopper can align with the exposed construction facade. The excavator continues to excavate the exposed soil, and the cycle is repeated in sequence. After the outer wall of the excavable soil of the construction facade is excavated, the fixed frame 3 moves to the edge position of the positioning baffle 2. At this time, the excavator moves the fixed frame 3 through the hopper to move the fixed frame 3 to the other direction of the positioning baffle 2, exposing the remaining construction facade to the outside, which is convenient for the excavator to excavate the soil Carry out sufficient excavation. When the excavation is completed, the excavator comes down from the bottom plate 1, and then the excavator pulls the bottom plate 1 up from above the soil through the hopper again through the limit hanging ring 202. The excavator moves, driving the bottom plate 1 to move to the ground after excavation, and places the bottom plate 1 on the soft soil just excavated. Then the excavator continues to move above the bottom plate 1 and continues to excavate the soil until the soil inside the deep foundation pit is excavated. In this process, not only can the excavator be supported by the bottom plate 1, but the soil at the bottom of the deep foundation pit can also be preliminarily leveled by the excavator, thereby reducing the jamming of mobile equipment in the deep foundation pit and improving the utilization efficiency.

[0069] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A soft soil deep foundation pit earthwork excavation and transmission equipment, comprising a bottom plate (1), a side guard (4), a conveyor belt (5) and a collection bin (6), characterized in that: A positioning baffle (2) and a fixing frame (3) are installed on the side of the bottom plate (1) close to the deep foundation pit excavation position. The bottom plate (1) includes a first connecting plate (101), a connecting rod (102), and an extrusion plate (103). The first connecting plate (101) is installed at the bottom end of the bottom plate (1). The connecting rod (102) is provided with a plurality of groups. The extrusion plate (103) is installed below the connecting rod (102). A plugging rod (201) is installed on the side of the positioning baffle (2). The positioning baffle (2) is connected to the bottom plate (1) by means of an insert rod (201), a plurality of groups of limit hanging rings (202) and a group of slide grooves (203) are installed on the top of the positioning baffle (2), the fixing frame (3) is connected to the positioning baffle (2) by means of the slide grooves (203), a baffle (301), a support rod (302) and a positioning rod (303) are installed on the side of the fixing frame (3), and a plurality of groups of spring rods (3011) are installed on the back of the baffle (301), The baffle (301) is slidably connected to the fixing frame (3) via a spring rod (3011); a plurality of sets of collars (305) are provided on the outer wall of the fixing frame (3); the spring rod (3011) is slidably connected to the fixing frame (3) via the collars (305); a plurality of sets of positioning rods (303) are provided between the support rods (302); the positioning rods (303) limit the position of the baffle (301); a slide plate (304) is installed at the bottom end of the support rod (302); The frame (3) is installed above the slide plate (304), the slide plate (304) is slidably connected to the slide groove (203), a lever (306) is installed on the back of the fixed frame (3), a transport structure is installed inside the deep foundation pit to transport soil, the bottom end of the conveyor belt (5) is located inside the deep foundation pit, the top end of the conveyor belt (5) is located outside the deep foundation pit, the collection bin (6) is located below the top end of the conveyor belt (5), and an extrusion device is installed inside the collection bin (6) for extruding soil; After the fixing frame (3) moves to the edge of the positioning baffle (2), the excavator moves the fixing frame (3) through the hopper, and moves the fixing frame (3) to the other direction of the positioning baffle (2), exposing the remaining construction facade to the outside, so as to facilitate the excavator to fully excavate the soil.

2. The soft soil deep foundation pit earthwork excavation and transmission equipment according to claim 1, characterized in that: The first connecting plate (101) is provided with an empty slot inside, and the insertion rod (201) is inserted into the first connecting plate (101) through the empty slot. The inner wall of the insertion rod (201) is provided with a plurality of groups of insertion holes (2011), and a fixing rod is installed inside the insertion hole (2011), and the insertion hole (2011) is snap-connected with the first connecting plate (101) via the fixing rod.

3. The soft soil deep foundation pit earthwork excavation and transmission equipment according to claim 1, characterized in that: The limiting hanging ring (202) is located on the side of the slide groove (203), and the top of the slide groove (203) is protruding and the middle is recessed. The bottom end of the positioning baffle (2) is installed with a pin (204), and the pin (204) is engaged with the ground. The inner wall of the slide groove (203) is provided with multiple groups of drainage grooves (205).

4. The soft soil deep foundation pit earthwork excavation and transmission equipment according to claim 1, characterized in that: Cleaning plates (3041) are provided on both sides of the slide plate (304). The cleaning plates (3041) are inclined metal structures, and the top ends of the cleaning plates (3041) are located outside the slide groove (203).

5. The soft soil deep foundation pit earthwork excavation and transmission equipment according to claim 1, characterized in that: A second connecting plate (3061) is connected to the side of the shifting rod (306), and the shifting rod (306) is fixed between the fixing frames (3) via the second connecting plate (3061). The shifting rod (306) is a structure that is small at the top and large at the bottom.

6. The soft soil deep foundation pit earthwork excavation and transmission equipment according to claim 1, characterized in that: Support legs (601) are installed on both sides of the collecting bin (6), and the collecting bin (6) is installed on the ground through the support legs (601). A clamping plate (602) is installed inside the collecting bin (6), and multiple groups of first driving cylinders (6021) are installed on the inner wall of the collecting bin (6). The output end of the first driving cylinder (6021) is fixedly connected to the clamping plate (602), and the clamping plate (602) is vertically arranged. A discharge plate (603) is installed at the bottom end of the collecting bin (6), and a second driving cylinder (6031) is installed at the bottom end of the discharge plate (603). The end of the second driving cylinder (6031) is rotatably connected to the collecting bin (6), and the second driving cylinder (6031) drives the discharge plate (603) to unfold.

7. The soft soil deep foundation pit earthwork excavation and transmission equipment according to claim 1, characterized in that: The side guard (4) is a solid structure, and the side guard (4) limits the edge of the deep foundation pit.

8. The soft soil deep foundation pit earthwork excavation and transmission equipment according to claim 1, characterized in that: The side guard (4) is a hollow structure with an opening at the top. A transport structure is installed inside the side guard (4). The transport structure includes an upper conveyor belt (401) and a lower conveyor belt (402). The upper conveyor belt (401) is flush with the excavation direction, and the lower conveyor belt (402) is perpendicular to the excavation direction. The lower conveyor belt (402) is located below the collecting bin (6), and the upper conveyor belt (401) is located above the lower conveyor belt (402).

9. A method for excavating and transmitting earthwork in a soft soil deep foundation pit, characterized in that The process of using the soft soil deep foundation pit earthwork excavation and transmission equipment according to any one of claims 1 to 8 comprises the following steps: Step 1: The excavator enters the deep foundation pit, and then places the bottom plate at the edge of the deep foundation pit. The bucket teeth of the excavator bucket are inserted into the limit hanging ring. The bottom plate is moved to the bottom of the deep foundation pit by the bucket, and the excavator drives the bottom plate to move to the construction position. The bottom plate is attached to the side of the construction facade, and then the bucket is separated from the limit hanging ring, and the fixed frame is aligned with the construction facade. Step 2: The excavator moves to the top of the bottom plate, and squeezes the soil at the bottom of the deep foundation pit through the bottom plate. The bucket fits with the lever, and the bucket pulls the lever to move. The lever drives the fixed frame to move, so that the position of the fixed frame is adjusted. The fixed frame can be moved to a position that has not been excavated. The soil is excavated through the bucket. As the excavator moves and constructs on the bottom plate, the soft soil will be squeezed and compressed as a whole to make the soft soil on the ground compact; Step 3: The soil is transported to the conveyor belt, which is started to drive the soil into the collection bin and collect the soil by gravity. When a large amount of soil is accumulated in the collection bin, the first driving cylinder is started to push the clamping plate to squeeze and compress the soil, and then the second driving cylinder is started to open the discharge plate, and then the first driving cylinder is started to open the clamping plate, and the soil falls downward and falls into the collection vehicle, thereby achieving soil compaction and improving soil transportation efficiency. Step 4: After the soil on the construction facade on the side of the fixed frame is excavated, the excavator pushes and adjusts the fixed frame through the hopper to expose the partially blocked construction facade to the outside, and the excavator moves so that the hopper can align with the exposed construction facade. The excavator continues to excavate the exposed soil, and the cycle is repeated. After the outer wall of the excavable soil on the construction facade is excavated, the fixed frame moves to the edge of the positioning baffle. At this time, the excavator moves the fixed frame through the hopper to move the fixed frame to the other direction of the positioning baffle, exposing the remaining construction facade to the outside, so that the excavator can fully excavate the soil; Step 5: After the excavation is completed, the excavator comes down from the bottom plate, and then the excavator uses the hopper to pull the bottom plate up from above the soil again through the limit hanging ring. The excavator moves, driving the bottom plate to move to the excavated ground, and places the bottom plate on the soft soil that has just been excavated. Then the excavator continues to move above the bottom plate to continue excavating the subsequent soil.

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