WO2021218078A1

WO2021218078A1 - Construction method for foundation pit earthwork transportation and crushing

Info

Publication number: WO2021218078A1
Application number: PCT/CN2020/123775
Authority: WO
Inventors: 陈小慧; 王志权; 雷斌; 李波; 张立学; 刘治军; 曾家明; 高子建
Original assignee: 深圳市工勘岩土集团有限公司
Priority date: 2020-04-30
Filing date: 2020-10-26
Publication date: 2021-11-04
Also published as: CN111549846A; CN111549846B

Abstract

The present invention relates to the technical field of foundation pit earthwork transportation and crushing methods. Disclosed is a construction method for foundation pit earthwork transportation and crushing, comprising the following construction steps: providing a first horizontal conveying structure at the bottom of a foundation pit, and dropping the earthwork excavated by an excavator directly into the first horizontal conveying structure; conveying the earthwork to a feed hopper of a crusher by means of the first horizontal conveying structure, so that the crusher crushes the earthwork into an earth-rock mixture; providing multiple inclined conveyor belts on a side of the foundation pit, a discharge port of the crusher being configured above the inclined conveyor belts, the multiple inclined conveyor belts being fixedly arranged on the inner side wall of the foundation pit, and the multiple inclined conveyor belts being arranged in sequence and extending to the top of the foundation pit; and conveying the earth and rock mixture to the top of the foundation pit by means of the inclined conveyor belts and then to a storage space for storage by means of a fourth inclined conveyor belt. The present method has the advantages of small space occupation, less interference by support structures in the foundation pit, and high transportation efficiency.

Description

Construction method for foundation pit earthwork transportation and crushing treatment

Technical field

The patent of the invention relates to the technical field of crushers, in particular to a construction method for foundation pit earthwork transportation and crushing treatment.

Background technique

Earth excavation is the most important process from the early stage of the project to the construction process. Especially the deep foundation pit excavation is an important step to ensure the progress of the construction period and the safety of the construction.

In recent years, with the development of underground space, more and more building construction has expanded underground. How to coordinate the safety and efficiency of deep foundation pit excavation is an important topic.

At the same time, with the continuous improvement of safety and environmental protection requirements, the traditional step relay excavation and horse track excavation have been unable to meet the construction requirements due to untimely support erection and large areas of exposed earth.

technical problem

In the prior art, the electric grab is unearthed vertically. During the process of excavation, transportation and earthwork, if there are many adjacent buildings around the foundation pit and the distance to the foundation pit is close, the resistance to deformation of the foundation pit is poor. , The construction site is narrow and construction will be very difficult. Therefore, there is a problem of low efficiency in the process of transporting and crushing the earthwork of the foundation pit.

Technical solutions

The purpose of the present invention is to provide a construction method for foundation pit earthwork transportation and crushing treatment, aiming to solve the problem of low efficiency in the process of transportation and crushing of foundation pit earthwork in the prior art.

The present invention is realized in this way. A construction method for foundation pit earthwork transportation and crushing treatment includes the following construction steps:

S1, excavate the earth at the bottom of the foundation pit with an excavator;

S2. Arrange a first horizontal transmission structure at the bottom of the foundation pit;

S2. The earthwork excavated by the excavator is directly dropped into the input end of the first horizontal transmission structure;

S3. The output end of the first horizontal transmission structure is connected to the feed hopper of the crusher, the earthwork is conveyed to the feed hopper of the crusher through the first horizontal transmission structure, and the crusher treats the earthwork Crushing, and crushing the earthwork into earth and stone materials;

S4. A plurality of inclined conveyor belts are arranged on the side of the foundation pit, the discharge port of the crusher is arranged above the inclined conveyor belt, and the plurality of inclined conveyor belts are fixedly arranged on the inner side wall of the foundation pit, A plurality of the inclined conveyor belts are arranged in sequence and extend to the top of the foundation pit;

S5. The earth and rock materials transferred to the top of the foundation pit via the inclined conveyor belt are transferred to the storage yard for centralized stacking via the fourth inclined conveyor belt;

S6. Use the counterattack mobile crushing station to further crush and screen the earth and stone materials, and then mechanically process them into silt, coarse sand, gravel sand and gravel for subsequent use;

The first horizontal transmission structure is a roller conveyor, a first horizontal conveyor belt is arranged directly below the first horizontal transmission structure, and the inclined conveyor belt extends toward the output end of the first horizontal conveyor belt to form an extension, so The output end of the first horizontal conveyor belt is arranged below the extension; the inclined conveyor belt includes at least a first inclined conveyor belt, a second inclined conveyor belt, and a third inclined conveyor belt, the first inclined conveyor belt, the second inclined conveyor belt, and The third inclined conveyor belt is arranged in sequence from the bottom to the top of the foundation pit.

Further, the first inclined conveyor belt has the extended section, the input end of the first inclined conveyor belt is arranged below the discharge hopper of the crusher, and the extended section is arranged above the first horizontal conveyor belt , The output end of the first inclined conveyor belt is placed above the input end of the second inclined conveyor belt, the output end of the second inclined conveyor belt is placed above the input end of the third inclined conveyor belt, and the third inclined conveyor belt The output end of the conveyor belt is placed above the fourth inclined conveyor belt.

Further, a discharging baffle is provided at the output end of the first horizontal conveyor belt, the middle of the discharging baffle has a feeding passage, and the discharging baffle includes a feeding end and a discharging end. The feeding end has a feeding opening, the discharging end has a discharging opening, the feeding end of the discharging baffle is fixedly connected to the output end of the first horizontal conveyor belt, and is placed below the output end, The discharge end of the discharge baffle extends to directly above the extension section; both sides of the inner side wall of the extension section are provided with externally expanded guard plates, and the height of the guard plate is higher than that of the first The height of the side wall of the horizontal conveyor belt, and the discharge end of the discharge baffle is placed on the inner side of the protective plate.

Further, the length of the first horizontal conveyor belt is greater than the length of the first horizontal transmission structure, and the width of the first horizontal conveyor belt is greater than the width of the first horizontal transmission structure.

Further, in step S4, a supporting structure is built on the inner side wall of the foundation pit, the supporting structure includes a plurality of supporting beams, and the supporting beam is drilled and implanted on the inner side wall of the foundation pit , One end of the supporting beam is embedded in the inner side wall of the foundation pit, and the other end of the supporting beam is placed inside the foundation pit and arranged in a vacant state; a plurality of the supporting beams are arranged along the foundation pit. The bottom to top direction of the slabs rises sequentially, and the inclined conveyor belt is fixedly arranged on the upper surface of the supporting beam.

Further, the support beam includes a plurality of horizontal support beams and a plurality of inclined support beams, the front end of the horizontal support beam is embedded in the inner side wall of the foundation pit, and the rear end of the horizontal support beam is horizontally vacant. , The inclined support beam is arranged directly below the horizontal support beam, and the front end of the inclined support beam is embedded in the inner side wall of the foundation pit, and the rear end of the inclined support beam faces the horizontal support beam It extends upwards obliquely in the direction of, and abuts against the rear end of the horizontal support beam, and the inclined conveyor belt is fixedly arranged on the upper surface of the horizontal support beam.

Further, a supporting beam is built in the middle of the side wall of the foundation pit, a supporting platform is provided on the supporting beam, and a pair of reinforcing beams are vertically extended on the supporting platform. The lower surface of the inclined conveyor belt is fixedly connected.

Further, a vibrator is provided on the first horizontal transmission structure.

Further, the inclination angle of the inclined conveyor belt is set to 30°.

Beneficial effect

Compared with the prior art, the present invention provides a construction method for foundation pit earthwork transportation and crushing treatment. The earthwork in the foundation pit is transferred to the feed hopper of the crusher through a first horizontal transmission structure, and the earthwork passes through the crusher. After being crushed, it becomes soil and rock materials with smaller particles, which are then transported to the top of the foundation pit by a conveyor belt fixedly arranged on the side wall of the foundation pit. Furthermore, the impact mobile crushing station is used to further crush and separate the soil and rock materials. The sieve is mechanically processed into silt, coarse sand, gravel sand, crushed stone, etc. for subsequent reuse. At the same time, it realizes the automatic paste transportation of the earth in the foundation pit, because there is no need for transportation vehicles and the vertical mechanical grab Lifting, so it has the advantages of small space occupation, not easy to be interfered by the supporting structure in the foundation pit, and high transportation efficiency.

Description of the drawings

Figure 1 is a schematic diagram of the construction process of a construction method for foundation pit earthwork transportation and crushing treatment provided by the present invention;

Figure 2 is a perspective schematic view of a construction method for foundation pit earthwork transportation and crushing treatment provided by the present invention;

Figure 3 is a schematic front view of a supporting beam of a construction method for foundation pit earthwork transportation and crushing treatment provided by the present invention;

4 is a perspective schematic view of the supporting beams of a construction method for soil transportation and crushing treatment of a foundation pit provided by the present invention in cooperation with the side walls of the foundation pit;

Figure 5 is a perspective schematic view of a crusher for a construction method for foundation pit earthwork transportation and crushing treatment provided by the present invention;

Fig. 6 is a three-dimensional schematic diagram of the feed structure of the crusher of a construction method for foundation pit earthwork transportation and crushing treatment provided by the present invention.

The best mode of the present invention

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not used to limit the present invention.

The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

The same or similar reference numerals in the drawings of this embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms "upper", "lower", "left", "right", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation, therefore, the terms describing the positional relationship in the drawings are only used for exemplary description, and cannot be understood as a limitation of the patent. For those of ordinary skill in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

1 to 6 show a preferred embodiment of the present invention.

A construction method for foundation pit earthwork transportation and crushing treatment includes the following construction steps:

S1, excavate the earth 220 at the bottom of the foundation pit 300 by an excavator;

S2. Arrange a first horizontal transmission structure 210 at the bottom of the foundation pit 300;

S2, directly drop the earthwork 220 excavated by the excavator into the input end of the first horizontal transmission structure 210;

S3. The output end of the first horizontal transmission structure 210 is connected to the feed hopper of the crusher 310, the earthwork 220 is transferred to the feed hopper of the crusher 310 through the first horizontal transmission structure 210, and the crusher 310 crushes the earthwork 220. And crush the earth 220 into earth and rock materials 221;

S4. A plurality of inclined conveyor belts 240 are arranged on the side of the foundation pit 300. The discharge port of the crusher 310 is arranged above the inclined conveyor belt 240. The plurality of inclined conveyor belts 240 are fixedly arranged on the inner side wall of the foundation pit 300. The inclined conveyor belt 240 is arranged in sequence and extends to the top of the foundation pit 300;

S5. The soil and rock materials 221 transferred to the top of the foundation pit 300 via the inclined conveyor belt 240, and then transferred to the storage yard 280 via the fourth inclined conveyor belt 250 for centralized stacking;

S6. At the storage yard 280, use the counterattack mobile crushing station to further crush and siev the earth and stone materials 221, and process them into silt, coarse sand, gravel sand, and gravel for subsequent use;

The first horizontal conveying structure 210 is a roller conveyor. A first horizontal conveying belt 230 is arranged directly under the first horizontal conveying structure 210. The inclined conveying belt 240 extends toward the output end of the first horizontal conveying belt 230 to form an extension 247. The output end of the conveyor belt 230 is arranged above the extension 247; the inclined conveyor belt 240 includes at least a first inclined conveyor belt 240, a second inclined conveyor belt 240, and a third inclined conveyor belt 240. The first inclined conveyor belt 240, the second inclined conveyor belt 240, and the third inclined conveyor belt 240 The inclined conveyor belt 240 is arranged in sequence from the bottom to the top of the foundation pit.

The above-mentioned construction method for the transportation and crushing of the earthwork 220 of the foundation pit 300 is provided. The earthwork 220 in the foundation pit 300 is transferred to the feed hopper of the crusher 310 through the first horizontal transfer structure 210, and the earthwork 220 passes through the crusher 310. After being crushed, the soil and stone materials 221 with smaller particles are transferred to the top of the foundation pit 300 through a conveyor belt fixedly arranged on the side walls of the foundation pit 300, and then the soil and stone materials 221 are further crushed by a counterattack mobile crushing station. , Sieving, and mechanical processing into silt, coarse sand, gravel sand, crushed stone, etc. for subsequent reuse. At the same time, the automatic transportation of the earth 220 in the foundation pit 300 is realized, because it does not require transportation vehicles and adopts The mechanical grab is lifted vertically, so it has the advantages of small space occupation, not easy to be interfered by the supporting structure in the foundation pit 300, and high transportation efficiency.

The above construction steps also have the following advantages: Compared with the traditional way of transporting the soil of the foundation pit 300 out of 220, the construction method provided in this application adopts the method of conveying belt transportation to transport the soil of the foundation pit 300 out, and there is no need to reserve during the excavation process. After excavated ramps, the excavated earth 220 and stone are crushed by the crusher 310, and are directly transported to the off-site storage yard 280 through the fourth inclined conveyor belt 250 for stacking. It can be transported along with the excavation, and the transport of the excavated excavation is not affected by time. Restrictions, the efficiency of excavation has been effectively improved.

Furthermore, the conveyor belt used in the present invention is a flexible member. By setting up multi-level conversion, the transportation slope is more applicable. The first horizontal transmission structure 210, the inclined conveyor belt 240, and the fourth inclined conveyor belt 250 are used for loading and discharging. The facilities can be arranged in any location, which is very convenient and the transportation distance is not limited.

In addition, at the storage yard 280, the crusher 310 is used to build a crushing station to sort and screen waste materials such as earthwork 220, and process various required grading materials, which can be used for municipal road base, cushion and foundation pit 300 return grooves Construction use such as backfilling greatly improves the use value of 300 soil in the foundation pit, and the recycling of resources is conducive to green construction.

Compared with the existing construction, the safety performance of this scheme is also greatly improved. The belt conveyor is used to transport the earthwork 220 of the foundation pit 300, which reduces the number of large-scale mechanical equipment in the foundation pit 300 and prevents mechanical equipment from affecting the foundation. The collision of various supporting components in the pit 300 effectively avoids the occurrence of various safety accidents.

The earthwork 220 of the foundation pit 300 is transported out of the conveyor belt. The belt conveyor has a large conveying capacity, low energy consumption, simple structure, and easy maintenance. The method is not only more efficient, but also requires a lower number of personnel and machinery, which greatly saves the cost.

The usability is wide, that is to say, as for the transportation structure to provide a smaller transmission space, the earthwork 220 can be transported and crushed, and after the transportation is completed, the first horizontal transmission structure 210 and the inclined conveyor belt can be 240. The first horizontal conveyor belt 230 and the crusher 310 are disassembled to realize reuse. Moreover, after dismantling the above devices, compared with the traditional construction method, since there is no excavation ramp reserved, there is no need to reprocess the excavation ramp. Facilitate the follow-up cleaning work.

Specifically, the first horizontal conveying structure 210 is a roller conveyor, and a first horizontal conveying belt 230 is provided directly under the first horizontal conveying structure 210. The inclined conveying belt 240 extends toward the output end of the first horizontal conveying belt 230 to form an extension. The output end of the first horizontal conveyor belt 230 is arranged above the extension section.

Roller conveyors and roller conveyors are easy to connect and filter. Multiple roller lines and other conveying equipment or special machines can be used to form a complex logistics conveying system to complete various process needs. Accumulating rollers can be used to achieve material accumulation and conveying. The conveyor has a simple structure, high reliability, and convenient use and maintenance.

In addition, there is a gap between the adjacent rollers, so that during transportation, the earth 220 with smaller particles can fall down through the gap between the two rollers under the action of gravity, and is set directly under the roller conveyor. There is a first horizontal conveyor belt 230. In this way, the first horizontal conveyor belt 230 can store the earthwork 220 that has fallen from the first horizontal transmission structure 210. At the same time, the output end of the first horizontal conveyor belt 230 is arranged above the extension section. A horizontal conveyor belt 230 transports the stored earthwork 220 to the inclined conveyor belt 240 to realize the transportation of the earthwork 220.

The advantage of this is that the earthwork 220 with a smaller particle size is screened out and transported to the inclined conveyor belt 240 through the first horizontal conveyor belt 230. The earthwork 220 with a larger particle size is crushed by the crusher 310 and then falls to the inclined conveyor belt. On the conveyor belt 240, unnecessary crushing work is avoided, on the one hand, the cost of the earthwork 220 is saved, and on the other hand, the amount of crushing of the earthwork 220 is reduced, thereby improving the transportation efficiency of the earthwork 220.

Specifically, the distance between two adjacent rollers of the roller conveyor is adjustable. By adjusting the distance between the rollers, the effect of the particle size of the earthwork 220 controlled and screened is achieved.

Further, the size of the drum is also adjustable.

Furthermore, in order to further accurately screen the particle size of the earthwork 220, a filter screen is laid on the transmission surface of the roller conveyor. The mesh size of the filter screen is consistent with the required particle size of the earthwork 220 to be filtered. During the operation of the roller conveyor, the earthwork 220 that meets the screening conditions falls from the mesh of the filter screen onto the first horizontal conveyor belt 230.

The inclined conveyor belt 240 includes at least a first inclined conveyor belt 240, a second inclined conveyor belt 240, and a third inclined conveyor belt 240. The first inclined conveyor belt 240, the second inclined conveyor belt 240, and the third inclined conveyor belt 240 are in sequence from the bottom to the top of the foundation pit 300 Arrangement; the first inclined conveyor belt 240 has an extension section 247, the input end of the first inclined conveyor belt 240 is arranged below the discharge hopper of the crusher 310, the extension section 247 is arranged below the first horizontal conveyor belt 230, the first inclined conveyor belt 240 The output end is placed above the input end of the second inclined conveyor belt 240, the output end of the second inclined conveyor belt 240 is placed above the input end of the third inclined conveyor belt 240, and the output end of the third inclined conveyor belt 240 is placed above the fourth inclined conveyor belt 250. Above.

A discharge baffle 260 is provided at the output end of the first horizontal conveyor belt 230. The middle of the discharge baffle 260 has a feeding passage. The discharge baffle 260 includes a feed end and a discharge end, and the feed end has a feed opening. , The discharge end has a discharge opening, the discharge end of the discharge baffle 260 is fixedly connected to the output end of the first horizontal conveyor belt 230 and is placed below the output end, and the discharge end of the discharge baffle 260 extends to the extension section 247 is directly above; both sides of the inner side wall of the extension 247 are provided with expanded guards, the height of the guards is higher than the height of the side walls of the first horizontal conveyor 230, and the discharge end of the discharge baffle 260 is placed The arrangement of the discharge baffle 260 and the protective plate on the inner side of the protective plate can effectively prevent the earthwork 220 from being scattered outside the extension section during the transportation of the earthwork 220.

Similarly, a discharge baffle 260 and a guard plate are also provided between the head and tail of the first inclined conveyor belt 240, the second inclined conveyor belt 240, and the third inclined conveyor belt 240 to ensure that the earthwork 220 falls smoothly into the next inclined conveyor belt 240. middle.

The length of the first horizontal conveyor belt 230 is greater than the length of the first horizontal transmission structure 210, and the width of the first horizontal conveyor belt 230 is greater than the width of the first horizontal transmission structure 210. In this way, the first horizontal conveyor belt 230 has a larger storage area, which can avoid The earth 220 is sprinkled inside the foundation pit 300 during the falling process.

In step S4, a support structure 241 is built on the inner side wall of the foundation pit 300. The support structure 241 includes a plurality of support beams. The inner side wall of the foundation pit 300 is drilled and implanted with support beams. One end of the support beam is embedded in the In the inner side wall of the foundation pit 300, the other end of the support beam is placed inside the foundation pit 300 and is arranged vacantly; a plurality of support beams rise in sequence from the bottom to the top of the foundation pit 300, and the inclined conveyor belt 240 is fixedly arranged on the support On the upper surface of the beam.

The supporting beams include a plurality of horizontal supporting beams 2411 and a plurality of inclined supporting beams 2412. The front end of the horizontal supporting beam 2411 is embedded in the inner side wall of the foundation pit 300, the rear end of the horizontal supporting beam 2411 is horizontally vacant, and the inclined supporting beam 2412 is arranged. It is directly below the horizontal support beam 2411, and the front end of the inclined support beam 2412 is embedded in the inner side wall of the foundation pit 300. The rear end abuts against each other, and the inclined conveyor belt 240 is fixedly arranged on the upper surface of the horizontal support beam 2411.

That is, the above-mentioned supporting structure 241 has at least three groups, and each group is composed of a plurality of supporting beams, and each group of supporting structures 241 is respectively opposite to the first inclined conveyor belt 240, the second inclined conveyor belt 240, and the third inclined conveyor belt 240. Correspondingly, to support the first inclined conveyor belt 240, the second inclined conveyor belt 240, and the third inclined conveyor belt 240.

In order to further improve the stability of the support for the inclined conveyor belt 240, a supporting beam is built in the middle of the side wall of the foundation pit 300, a supporting platform is provided on the supporting beam, and a pair of reinforcing beams 249 are vertically extended on the supporting platform to strengthen The top of the beam 249 is fixedly connected to the lower surface of the inclined conveyor belt 240, that is to say, the inclined conveyor belt 240 is supported by the original supporting structure 241 in the foundation pit 300, and the stable system supporting the inclined conveyor belt 240 is improved while improving the stability of the support for the inclined conveyor belt 240. , Which has the effect of reducing construction costs.

A vibrator is provided on the first horizontal transmission structure 210. When the first horizontal transmission structure 210 transports the earthwork 220, the vibrator vibrates, and the earthwork 220 is vibrated during the advancement process, so that the earthwork 220 with a smaller particle size can be transported from the drum. The plane fell down.

Preferably, the inclination angle of the inclined conveyor belt 240 is set to 30°, which can not only realize the optimal conveying speed, but also avoid the slipping of the conveyed stones caused by the excessive inclination angle.

In another embodiment, the inclination angle of the inclined conveyor belt 240 and the length of the inclined conveyor belt 240 are adjustable, so as to meet the application in foundation pits 300 of different sizes and different depths.

By setting the feed structure 100 at the feed opening of the crusher 310, and the vibrator 80 is provided below the feed structure 100, when materials need to be processed, only the materials need to be placed in the feed structure 100. Then the vibrator 80 is activated. During the vibration, the materials in the feeding structure 100 sequentially fall into the feeding port, so that the parts of the material enter the crushing chamber 50, and the automatic feeding can be realized without the need for special personnel to control. , Has a strong practicality.

A pull rod 47 is provided under the push rod 42, and the pull rod 47 is fixedly connected to the movable pressing plate 40. In this way, the pull rod 47 and the push rod 42 cooperate to realize the reciprocating swing of the movable pressing plate 40.

The push rod 42 is a part of the air cylinder 43, and the air cylinder 43 drives the push rod 42 to reciprocate by hydraulic or pneumatic means.

The feeding structure 100 includes a feeding trough 101. The feeding trough 101 is arranged obliquely downward from the rear end to the front end of the feeding structure 100. In this way, under the action of gravity, it is more convenient for the material to slide and fall toward the feed inlet. It falls in the crushing cavity 50, which is convenient for subsequent crushing operations.

In order to further facilitate the entry of materials into the crushing chamber 50, the feed trough 101 has a feed section 102 facing the feed opening. The width is set to gradually increase, and the feeding section 102 is more open, which facilitates the sliding of the material.

Further, along the direction from the rear end to the front end of the feeding structure 100, the groove bottom of the feeding section 102 is arranged obliquely downward, and the inclination angle of the groove bottom of the feeding section 102 is greater than the inclination angle of the groove bottom of the feeding groove 101, This further facilitates the falling of materials that slide to the vicinity of the feeding section 102.

The rear end of the feeding trough 101 is closed, the front end of the feeding trough 101 is open, and the front end opening of the feeding trough 101 is connected with the feeding port, which facilitates the storage of materials.

Of course, the rear end of the feed tank 101 can also be opened, and a conveyor belt is provided at the rear end of the feed tank 101. The material can be directly conveyed into the feed tank 101 via the conveyor belt, and the material is divided by the vibration of the vibrator 80. The batch is placed in the crushing cavity 50 to realize fully automatic control of materials.

There is an adjustment structure 90 below the vibrator 80, which can adjust the height of the vibrator 80. The adjustment structure 90 can be threaded, spliced, hydraulic, etc., and only needs to be able to adjust the height of the vibrator 80. The basic role can be.

Through the above adjustment structure 90, the height of the vibrator 80 is adjusted. Since the front end of the feed structure 100 is hingedly arranged with the bracket 70, when the vibrator 80 raises the rear end of the feed structure 100, the feed structure 100 The increase of the inclination angle makes it easier for the material to fall, thus realizing the control of the feeding speed.

The feed structure 100 has a bottom end surface arranged toward the vibrator 80, and the bottom end surface has a recessed groove, and the vibrating shaft 81 of the vibrator 80 is placed in the recessed groove. In this way, the direct cooperation between the vibrator 80 and the feed structure 100 is more stable. Dislocation and tilt are not easy to occur during vibration.

Limiting posts are provided on both sides of the feeding structure 100. When the vibrator 80 drives the feeding structure 100 to vibrate, the limiting posts can limit the horizontal position of the feeding structure 100, and further avoid the misalignment of the feeding structure 100. Occurrence of tilt.

A buffer structure is provided in the recessed groove. When the vibrator 80 reciprocates, the vibrating shaft 81 of the vibrator 80 abuts against the buffer structure, which can play the role of buffering and damping.

The buffer structure can be a rubber pad or any other material that can play a buffering role.

The bracket 70 is provided with a fixed column 71 which extends vertically above the body 20. The upper end of the fixed column 71 is fixedly connected with a telescopic member 72, and the other end of the telescopic member 72 is fixedly connected with the rear end of the feeding structure 100, The telescopic member 72 is in a pre-tensioned state. In this way, during the vibration of the vibrator 80, it plays a role of limiting the position of the feeding structure 100 during the swinging process, and on the other hand, it can also play a continuous role in the feeding structure 100. The process of traction and swing up and down is lighter and less labor-saving, reducing operating costs.

The telescopic member 72 is a spring column, and may also be a material with telescopic characteristics such as a telescopic rod or a rubber band.

The bottom of the feeding trough 101 is roughly arranged, which can avoid unnecessary slipping of the material in the feeding trough 101 and reduce the error of the feeding amount during the feeding process.

The above descriptions are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection of the present invention. Within range.

Claims

A construction method for foundation pit earthwork transportation and crushing treatment is characterized in that it comprises the following construction steps:

S1, excavate the earth at the bottom of the foundation pit with an excavator;

S2. Arrange a first horizontal transmission structure at the bottom of the foundation pit;

S2. The earthwork excavated by the excavator is directly dropped into the input end of the first horizontal transmission structure;

S3. The output end of the first horizontal transmission structure is connected to the feed hopper of the crusher, the earthwork is conveyed to the feed hopper of the crusher through the first horizontal transmission structure, and the crusher treats the earthwork Crushing, and crushing the earthwork into earth and stone materials;

S4. A plurality of inclined conveyor belts are arranged on the side of the foundation pit, the discharge port of the crusher is arranged above the inclined conveyor belt, and the plurality of inclined conveyor belts are fixedly arranged on the inner side wall of the foundation pit, A plurality of the inclined conveyor belts are arranged in sequence and extend to the top of the foundation pit;

S5. The soil and rock materials transferred to the top of the foundation pit via the inclined conveyor belt are transferred to the storage yard for centralized storage via the fourth inclined conveyor belt;

S6. Use the counterattack mobile crushing station to further crush and siev the earth and stone materials at the storage yard, and process them into silt, coarse sand, gravel sand, and gravel for subsequent use;

The first horizontal transmission structure is a roller conveyor, a first horizontal conveyor belt is arranged directly below the first horizontal transmission structure, and the inclined conveyor belt extends toward the output end of the first horizontal conveyor belt to form an extension, so The output end of the first horizontal conveyor belt is arranged above the extension; the inclined conveyor belt includes at least a first inclined conveyor belt, a second inclined conveyor belt, and a third inclined conveyor belt, the first inclined conveyor belt, the second inclined conveyor belt, and The third inclined conveyor belt is arranged in sequence from the bottom to the top of the foundation pit.
The construction method of foundation pit earthwork transportation and crushing treatment according to claim 1, wherein the first inclined conveyor belt has the extension section, and the input end of the first inclined conveyor belt is arranged at the crushing Under the discharge hopper of the machine, the extension section is arranged below the first horizontal conveyor belt, the output end of the first inclined conveyor belt is placed above the input end of the second inclined conveyor belt, and the second inclined conveyor belt The output end of is placed above the input end of the third inclined conveyor belt, and the output end of the third inclined conveyor belt is placed above the fourth inclined conveyor belt.
The construction method of foundation pit earthwork transportation and crushing treatment according to claim 2, wherein a discharge baffle is provided at the output end of the first horizontal conveyor belt, and the middle part of the discharge baffle There is a feeding passage, the discharge baffle includes a feed end and a discharge end, the feed end has a feed opening, the discharge end has a discharge opening, and the feed end of the discharge baffle is connected to The output end of the first horizontal conveyor belt is fixedly connected and placed below the output end, the discharge end of the discharge baffle extends to directly above the extension section; two inner side walls of the extension section The side is provided with an expanded guard plate, the height of the guard plate is higher than the height of the side wall of the first horizontal conveyor belt, and the discharge end of the discharge baffle is placed on the inner side of the guard plate.
The construction method of foundation pit earthwork transportation and crushing treatment according to claim 2, wherein the length of the first horizontal conveyor belt is greater than the length of the first horizontal transmission structure, and the length of the first horizontal conveyor belt The width is greater than the width of the first horizontal transmission structure.
A construction method for foundation pit soil transportation and crushing treatment according to claim 2, characterized in that, in step S4, a supporting structure is built on the inner side wall of the foundation pit, and the supporting structure includes multiple A support beam is drilled on the inner side wall of the foundation pit to implant the support beam, one end of the support beam is embedded in the inner side wall of the foundation pit, and the other end of the support beam is placed in the The inside of the foundation pit is arranged vacantly; a plurality of the support beams rise in sequence from the bottom to the top of the foundation pit, and the inclined conveyor belt is fixedly arranged on the upper surface of the support beam.
A construction method for foundation pit earthwork transportation and crushing treatment according to claim 5, wherein the supporting beam comprises a plurality of horizontal supporting beams and a plurality of inclined supporting beams, and the front end of the horizontal supporting beam is embedded in In the inner side wall of the foundation pit, the rear end of the horizontal support beam is horizontally vacant, the inclined support beam is arranged directly below the horizontal support beam, and the front end of the inclined support beam is embedded in the In the inner side wall of the foundation pit, the rear end of the inclined support beam extends obliquely upward in the direction of the horizontal support beam, and abuts against the rear end of the horizontal support beam, and the inclined conveyor belt is fixedly arranged at the horizontal support beam. Support the upper surface of the beam.
A construction method for foundation pit soil transportation and crushing treatment according to any one of claims 1 to 6, characterized in that a supporting beam is built in the middle of the side wall of the foundation pit, and a supporting beam is arranged on the supporting beam There is a supporting platform on which a pair of reinforcing beams extend vertically, and the top of the reinforcing beam is fixedly connected with the lower surface of the inclined conveyor belt.
The construction method of foundation pit earthwork transportation and crushing treatment according to any one of claims 1 to 6, characterized in that a vibrator is provided on the first horizontal transmission structure.
The construction method of foundation pit earthwork transportation and crushing treatment according to any one of claims 1 to 6, characterized in that the inclination angle of the inclined conveyor belt is set to 30°.