CN111549846B - Construction method for foundation pit earthwork transportation and crushing treatment - Google Patents
Construction method for foundation pit earthwork transportation and crushing treatment Download PDFInfo
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- CN111549846B CN111549846B CN202010366407.1A CN202010366407A CN111549846B CN 111549846 B CN111549846 B CN 111549846B CN 202010366407 A CN202010366407 A CN 202010366407A CN 111549846 B CN111549846 B CN 111549846B
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- foundation pit
- conveyor belt
- inclined conveyor
- earthwork
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/22—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising a series of co-operating units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
Abstract
The invention relates to the technical field of foundation pit earthwork transportation and crushing methods, and discloses a construction method for foundation pit earthwork transportation and crushing treatment, which comprises the following construction steps: arranging a first horizontal transmission structure at the bottom of the foundation pit, and directly dropping the earthwork excavated by the excavator into the first horizontal transmission structure; the earthwork is conveyed into a feed hopper of a crusher through a first horizontal conveying structure, and the crusher crushes the earthwork and crushes the earthwork into earthwork material; the side part of the foundation pit is provided with a plurality of inclined conveyor belts, a discharge port of the crusher is arranged above the inclined conveyor belts, the inclined conveyor belts are fixedly arranged on the inner side wall of the foundation pit, and the inclined conveyor belts are sequentially arranged and extend to the top of the foundation pit; the soil and stone materials transmitted to the top of the foundation pit through the inclined conveyor belt are transmitted to a yard through the fourth inclined conveyor belt to be stacked in a concentrated mode, and the conveying device has the advantages of being small in occupied space, not prone to being interfered by a supporting structure in the foundation pit and high in conveying efficiency.
Description
Technical Field
The invention relates to the technical field of crushers, in particular to a construction method for foundation pit earthwork transportation and crushing treatment.
Background
The earth excavation is the most important process from the initial stage of engineering to the construction process, and particularly, the earth excavation of a deep foundation pit is an important step for ensuring the construction period progress and the construction safety.
In recent years, along with the development of underground space, building construction is more and more expanded towards the underground, and how to achieve the overall arrangement of the safety and efficiency of deep foundation pit excavation is an important subject.
Meanwhile, with the continuous improvement of safety and environmental protection requirements, the traditional step relay excavation and berm excavation cannot meet the construction requirements due to the fact that the support frames are not arranged timely and large-area earthwork is exposed.
Among the prior art, electric grab bucket unearths perpendicularly, excavates, transports and carries out broken in-process to the earthwork, if the adjacent building of foundation ditch periphery is many and when near apart from the foundation ditch, it is poor to the bearing capacity of resisting of foundation ditch deformation, and the construction site is narrow and small, and the construction will be very difficult, consequently at the transportation and the broken in-process to the foundation ditch earthwork, has the problem that efficiency is lower.
Disclosure of Invention
The invention aims to provide a construction method for transporting and crushing foundation pit earthwork, and aims to solve the problem of low efficiency in the process of transporting and crushing foundation pit earthwork in the prior art.
The invention is realized in this way, a construction method for transporting and crushing earthwork of a foundation pit comprises the following construction steps:
s1, excavating the earthwork at the bottom of the foundation pit by an excavator;
s2, arranging a first horizontal transmission structure at the bottom of the foundation pit;
s2, directly dropping the earthwork excavated by the excavator into the input end of the first horizontal transmission structure;
s3, connecting the output end of the first horizontal transmission structure with a feed hopper of a crusher, conveying the earthwork into the feed hopper of the crusher through the first horizontal transmission structure, crushing the earthwork by the crusher, and crushing the earthwork into an earthwork material;
s4, arranging a plurality of inclined conveyor belts at the edge of the foundation pit, arranging a discharge port of the crusher above the inclined conveyor belts, fixedly arranging the inclined conveyor belts on the inner side wall of the foundation pit, and sequentially arranging and extending the inclined conveyor belts to the top of the foundation pit;
s5, conveying the soil and stone materials to the top of the foundation pit through the inclined conveyor belt, and conveying the soil and stone materials to a yard through a fourth inclined conveyor belt for centralized stacking;
s6, further crushing and screening the soil and stone materials in a storage yard by using a counterattack type mobile crushing station, and mechanically processing the soil and stone materials into silt, coarse sand, gravel sand and broken stone for subsequent utilization;
the first horizontal conveying structure is a roller conveyor, a first horizontal conveying belt is arranged right below the first horizontal conveying structure, the inclined conveying belt extends towards the direction of the output end of the first horizontal conveying belt to form an extension section, and the output end of the first horizontal conveying belt is arranged below the extension section; the inclined conveyor belt at least comprises a first inclined conveyor belt, a second inclined conveyor belt and a third inclined conveyor belt, and the first inclined conveyor belt, the second inclined conveyor belt and the third inclined conveyor belt are sequentially arranged from the bottom to the top of the foundation pit.
Further, the first inclined conveyor belt has the extension section, an input end of the first inclined conveyor belt is arranged below a discharge hopper of the crusher, the extension section is arranged above the first horizontal conveyor belt, an output end of the first inclined conveyor belt is arranged above an input end of the second inclined conveyor belt, an output end of the second inclined conveyor belt is arranged above an input end of the third inclined conveyor belt, and an output end of the third inclined conveyor belt is arranged above the fourth inclined conveyor belt.
Further, an unloading baffle is arranged at the output end of the first horizontal conveyor belt, a feeding passage is arranged in the middle of the unloading baffle, the unloading baffle comprises a feeding end and a discharging end, the feeding end is provided with a feeding opening, the discharging end is provided with a discharging opening, the feeding end of the unloading baffle is fixedly connected with the output end of the first horizontal conveyor belt and is arranged below the output end, and the discharging end of the unloading baffle extends to the position right above the extension section; the two sides of the inner side wall of the extension section are provided with outward-expanded guard plates, the height of each guard plate is higher than that of the side wall of the first horizontal conveying belt, and the discharge ends of the discharge baffles are arranged on the inner sides of the guard plates.
Further, the length of the first horizontal conveyor belt is greater than the length of the first horizontal conveying structure, and the width of the first horizontal conveyor belt is greater than the width of the first horizontal conveying structure.
Further, in step S4, building a supporting structure on the inner side wall of the foundation pit, where the supporting structure includes a plurality of supporting beams, drilling holes in the inner side wall of the foundation pit, and implanting the supporting beams, where one end of each supporting beam is embedded in the inner side wall of the foundation pit, and the other end of each supporting beam is placed inside the foundation pit and is in a vacant arrangement; the supporting beams ascend in sequence along the direction from the bottom to the top of the foundation pit, and the inclined conveyor belt is fixedly arranged on the upper surfaces of the supporting beams.
Further, the supporting beam includes a plurality of horizontal supporting beams and a plurality of slope supporting beam, horizontal supporting beam's front end embedding is in the inside wall of foundation ditch, horizontal supporting beam's rear end is horizontal vacant arranging, slope supporting beam arranges under horizontal supporting beam, just slope supporting beam's front end embedding is in the inside wall of foundation ditch, slope supporting beam's rear end upwards extends towards horizontal supporting beam's direction slope, and with horizontal supporting beam's rear end butt, the slope conveyer belt is fixed to be arranged on horizontal supporting beam's upper surface.
Furthermore, a supporting beam is built in the middle of the side wall of the foundation pit, a supporting platform is arranged on the supporting beam, a reinforcing beam vertically extends on the supporting platform, and the top of the reinforcing beam is fixedly connected with the lower surface of the inclined conveyor belt.
Further, a vibrator is disposed on the first horizontal transfer structure.
Further, the inclination angle of the inclined conveyor belt is set to 30 °.
Compared with the prior art, the construction method for transporting and crushing the earthwork of the foundation pit provided by the invention has the advantages that the earthwork in the foundation pit is transmitted into a feed hopper of a crusher through a first horizontal transmission structure, the earthwork is crushed by the crusher to become an earthwork material with smaller particles, and then is transmitted to the top of the foundation pit through a conveyor belt fixedly arranged on the side wall of the foundation pit, further, the earthwork material is further crushed and sieved by a counterattack type movable crushing station, and is mechanically processed into silt, coarse sand, gravel, broken stone and the like so as to be conveniently recycled, meanwhile, the automatic pasting transportation of the earthwork in the foundation pit is realized, and as a transport vehicle and a mechanical grab bucket are not needed for vertical hoisting, the construction method has the advantages of small occupied space, difficulty in being interfered by a supporting structure in the foundation pit and high transportation efficiency.
Drawings
FIG. 1 is a schematic construction flow diagram of a construction method for transporting and crushing earthwork of a foundation pit according to the present invention;
FIG. 2 is a schematic perspective view of a construction method for transporting and crushing earthwork of a foundation pit according to the present invention;
FIG. 3 is a schematic front view of a support beam for the construction method of transporting and crushing earthwork of a foundation pit according to the present invention;
FIG. 4 is a schematic perspective view of a supporting beam and a side wall of a foundation pit in a construction method for earthwork transportation and crushing treatment of the foundation pit according to the present invention;
FIG. 5 is a schematic perspective view of a crusher for a construction method of transporting and crushing earthwork of a foundation pit according to the present invention;
fig. 6 is a schematic perspective view of a feeding structure of a crusher for a construction method of transporting and crushing earthwork of a foundation pit according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1 to 6, preferred embodiments of the present invention are shown.
A construction method for transporting and crushing earthwork of a foundation pit comprises the following construction steps:
s1, excavating the earthwork 220 at the bottom of the foundation pit 300 through an excavator;
s2, arranging a first horizontal transmission structure 210 at the bottom of the foundation pit 300;
s2, directly dropping 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 with the feed hopper of the crusher 310, the earthwork 220 is conveyed into the feed hopper of the crusher 310 through the first horizontal transmission structure 210, the crusher 310 crushes the earthwork 220, and the earthwork 220 is crushed into an earthwork material 221;
s4, arranging a plurality of inclined conveyor belts 240 at the edge of the foundation pit 300, arranging a discharge port of the crusher 310 above the inclined conveyor belts 240, fixedly arranging the inclined conveyor belts 240 on the inner side wall of the foundation pit 300, and sequentially arranging and extending the inclined conveyor belts 240 to the top of the foundation pit 300;
s5, conveying the soil and stone material 221 to the top of the foundation pit 300 through the inclined conveyor belt 240, and conveying the soil and stone material to a yard 280 through a fourth inclined conveyor belt 250 for centralized stacking;
s6, further crushing and screening the soil and stone material 221 in a storage yard 280 by using a counterattack type mobile crushing station, and mechanically processing the crushed material into powder sand, coarse sand, gravel sand and broken stone for subsequent utilization;
the first horizontal transmission structure 210 is a roller conveyor, a first horizontal conveyor belt 230 is arranged right below the first horizontal transmission structure 210, an inclined conveyor belt 240 extends towards the output end of the first horizontal conveyor belt 230 to form an extension section 247, and the output end of the first horizontal conveyor belt 230 is arranged above the extension section 247; the inclined conveyor belts 240 include at least a first inclined conveyor belt 240, a second inclined conveyor belt 240, and a third inclined conveyor belt 240, and the first inclined conveyor belt 240, the second inclined conveyor belt 240, and the third inclined conveyor belt 240 are sequentially arranged from the bottom to the top of the foundation pit.
The construction method for transporting and crushing the earthwork 220 in the foundation pit 300 includes the steps of transporting the earthwork 220 in the foundation pit 300 into a feed hopper of a crusher 310 through a first horizontal transport structure 210, crushing the earthwork 220 into a small-particle earthwork material 221 through the crusher 310, then transporting the small-particle earthwork material 221 to the top of the foundation pit 300 through a conveyor belt fixedly arranged on the side wall of the foundation pit 300, further crushing and screening the small-particle earthwork material 221 through a reaction type mobile crushing station, and mechanically processing the small-particle earthwork material into silt, coarse sand, gravel and the like so as to facilitate subsequent reuse.
In the above-mentioned construction step, still have the following advantage: compare in traditional foundation ditch 300 earthwork 220 outward transport mode, the construction method that this application provided adopts the mode of conveyer belt transportation to transport foundation ditch 300 soil outward, need not to reserve out the soil ramp among the excavation process, and the earthwork 220 of excavation, the stone side after the breaker 310 is broken, directly transport to the yard 280 outside the place through fourth slope conveyer belt 250 and stack, can realize transporting along with digging, and its conveying unearthed does not receive the restriction of time in addition, unearthed efficiency obtains effectively promoting.
Moreover, the conveyor belt used in the invention is a flexible member, and has strong applicability to conveying and transporting slopes by setting multi-stage conversion, and the loading and discharging facilities of the first horizontal conveying structure 210, the inclined conveyor belt 240 and the fourth inclined conveyor belt 250 can be arranged at any position, so that the invention is very convenient and the transporting distance is not limited.
In addition, a crushing station is built in the yard 280 by using a crusher 310, waste materials such as earthwork 220 and the like are sorted and screened, and various required graded materials are processed and processed, so that the method can be used for construction such as municipal road base layer, cushion layer, foundation pit 300 back groove backfill and the like, the utilization value of the foundation pit 300 soil is greatly improved, and resource recycling is beneficial to green and environment-friendly construction.
Compare in current construction, this scheme also has very big promotion on the security, takes belt conveyor to carry out outward transport processing to foundation ditch 300 earthwork 220, has reduced large-scale mechanical equipment quantity in the foundation ditch 300, prevents mechanical equipment to all kinds of supporting member's in the foundation ditch 300 collision, has effectively avoided the emergence of all kinds of incident.
The foundation pit 300 earthwork 220 is transported outside by the conveyor belt, the conveyor belt has large conveying capacity, low energy consumption and simple structure, is convenient to maintain, and compared with the traditional modes of reserving an earthwork ramp, vertically lifting a mechanical grab bucket and the like, the mode has the advantages of higher efficiency, lower quantity of required personnel and machinery and great cost saving.
The usability is wider, that is, as for providing a smaller transmission space for the conveying structure, the transportation and the crushing of the earthwork 220 can be realized, and after the transportation is completed, the first horizontal conveying structure 210, the inclined conveyor belt 240, the first horizontal conveyor belt 230 and the crusher 310 can be disassembled, so that the reutilization is realized, and compared with the traditional construction method, after the device is disassembled, no soil ramp is reserved, so that the retreatment of the soil ramp is not needed, and the subsequent bottom clearing work is convenient.
Specifically, the first horizontal transfer structure 210 is a roller conveyor, a first horizontal conveyor belt 230 is disposed directly below the first horizontal transfer structure 210, an inclined conveyor belt 240 extends toward an output end of the first horizontal conveyor belt 230 to form an extended section, and the output end of the first horizontal conveyor belt 230 is disposed above the extended section.
Roller conveyor easily links up between the roller conveyor and filters, and complicated logistics conveying system is constituteed to many roller lines and other conveying equipment or special plane, accomplishes many-sided technological needs, can adopt long-pending cylinder realization material pile up the transport, roller conveyor simple structure, and the reliability is high, uses and maintains the convenience.
In addition, a gap is formed between the adjacent rollers, so that the earthwork 220 with smaller particles can fall down through the gap between the two rollers under the action of gravity in the transportation process, the first horizontal conveyor belt 230 is arranged right below the roller conveyor, so that the earthwork 220 falling down from the first horizontal conveying structure 210 can be accommodated by the first horizontal conveyor belt 230, meanwhile, the output end of the first horizontal conveyor belt 230 is arranged above the extension section, and the first horizontal conveyor belt 230 conveys the accommodated earthwork 220 to the inclined conveyor belt 240 again, so that the transportation of the earthwork 220 is realized.
The benefits of this are: the earthwork 220 with small particle size is screened out and is conveyed to the inclined conveyor belt 240 through the first horizontal conveyor belt 230, and the earthwork 220 with large particle size drops onto the inclined conveyor belt 240 after being crushed by the crusher 310, so that the crushing work is avoided, the cost of the earthwork 220 is saved on one hand, and on the other hand, the crushing amount 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, and the effect of controlling the particle size of the screened earthwork 220 is achieved by adjusting the distance between the rollers.
Further, the size of the drum is also adjustable.
Furthermore, in order to further refine the screening of the particle size of the earthwork 220, a filter screen is laid on the conveying surface of the drum conveyor, and the size of the mesh of the filter screen is consistent with the required particle size of the filtered earthwork 220, so that the earthwork 220 meeting the screening condition falls from the mesh of the filter screen onto the first horizontal conveyor belt 230 during the operation of the drum conveyor.
The inclined conveyor belts 240 at least comprise a first inclined conveyor belt 240, a second inclined conveyor belt 240 and a third inclined conveyor belt 240, and the first inclined conveyor belt 240, the second inclined conveyor belt 240 and the third inclined conveyor belt 240 are sequentially arranged from the bottom to the top of the foundation pit 300; the first inclined conveyor 240 has an extension 247, the input end of the first inclined conveyor 240 is disposed below the discharge hopper of the crusher 310, the extension 247 is disposed below the first horizontal conveyor 230, the output end of the first inclined conveyor 240 is disposed above the input end of the second inclined conveyor 240, the output end of the second inclined conveyor 240 is disposed above the input end of the third inclined conveyor 240, and the output end of the third inclined conveyor 240 is disposed above the fourth inclined conveyor 250.
A discharging baffle 260 is arranged at the output end of the first horizontal conveyor belt 230, a feeding passage is arranged in the middle of the discharging baffle 260, the discharging baffle 260 comprises a feeding end and a discharging end, the feeding end is provided with a feeding opening, the discharging end is provided with a discharging opening, the feeding end of the discharging baffle 260 is fixedly connected with the output end of the first horizontal conveyor belt 230 and is arranged below the output end, and the discharging end of the discharging baffle 260 extends to be right above the extension section 247; the both sides of the inside wall of extension section 247 are provided with the backplate that expands outward, and the height of backplate is higher than the height of the lateral wall of first horizontal conveyor 230, and the inboard of backplate is arranged in to the discharge end of baffle 260 of unloading, and the setting of baffle 260 and backplate of unloading can effectively avoid earthwork 220 in the transportation, and earthwork 220 loses the outside of extending the section.
Similarly, a discharge baffle 260 and a guard plate are also provided between the first inclined conveyor belt 240, the second inclined conveyor belt 240 and the third inclined conveyor belt 240, so as to ensure that the earthwork 220 smoothly falls into the next inclined conveyor belt 240.
The length of the first horizontal conveyor belt 230 is greater than the length of the first horizontal conveying structure 210, and the width of the first horizontal conveyor belt 230 is greater than the width of the first horizontal conveying structure 210, so that the first horizontal conveyor belt 230 has a larger accommodating area, and the earthwork 220 can be prevented from being scattered inside the foundation pit 300 in the falling process.
In step S4, building a supporting structure 241 on the inner side wall of the foundation pit 300, where the supporting structure 241 includes a plurality of supporting beams, drilling holes on the inner side wall of the foundation pit 300, and implanting the supporting beams, where one end of each supporting beam is embedded in the inner side wall of the foundation pit 300, and the other end of each supporting beam is disposed inside the foundation pit 300 and is in a vacant arrangement; a plurality of support beams ascend sequentially in a bottom-to-top direction of the foundation pit 300, and an inclined conveyor 240 is fixedly disposed on the upper surfaces of the support beams.
The support beam comprises a plurality of horizontal support beams 2411 and a plurality of inclined support beams 2412, the front ends of the horizontal support beams 2411 are embedded in the inner side wall of the foundation pit 300, the rear ends of the horizontal support beams 2411 are horizontally arranged in an empty mode, the inclined support beams 2412 are arranged right below the horizontal support beams 2411, the front ends of the inclined support beams 2412 are embedded in the inner side wall of the foundation pit 300, the rear ends of the inclined support beams 2412 extend upwards in an inclined mode towards the direction of the horizontal support beams 2411 and abut against the rear ends of the horizontal support beams 2411, and the inclined conveyor belt 240 is fixedly arranged on the upper surface of the horizontal support beams 2411.
That is, the supporting structure 241 has at least three groups, each group is composed of a plurality of supporting beams, and each group of supporting structure 241 corresponds to the first inclined conveyor belt 240, the second inclined conveyor belt 240 and the third inclined conveyor belt 240 respectively, so as 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 supporting 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 arranged on the supporting beam, a pair of reinforcing beams 249 vertically extends on the supporting platform, the top of each reinforcing beam 249 is fixedly connected with the lower surface of the inclined conveyor belt 240, that is, the inclined conveyor belt 240 is supported by means of an original supporting structure 241 in the foundation pit 300, and the effect of reducing the construction cost is achieved while the stable system of supporting the inclined conveyor belt 240 is improved.
The first horizontal transfer structure 210 is provided with a vibrator, and the vibrator vibrates during the first horizontal transfer structure 210 transports the earthwork 220, and the earthwork 220 is vibrated during the advancing process, so that the earthwork 220 with smaller particle size can fall off from the roller conveyor.
Preferably, the inclined angle of the inclined conveyor 240 is set to 30 °, so that not only can the optimum conveying speed be realized, but also the falling of the conveyed stone material caused by the excessively large inclined angle can be avoided.
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 requirements in foundation pits 300 with different sizes and different depths.
Through the feed inlet department at breaker 310 sets up feeding structure 100, be provided with vibrator 80 in the below of feeding structure 100, add man-hour as required to the material like this, only need arrange the material in feeding structure 100, then start vibrator 80, at the vibration in-process, material in the feeding structure 100 falls in the feed inlet according to the preface, thereby the realization makes the subsection of material get into broken chamber 50, need not special personnel and controls, can realize automatic feed, have very strong practicality.
A pull rod 47 is arranged below the push rod 42, and the pull rod 47 is fixedly connected with the movable pressure plate 40, so that the pull rod 47 is matched with the push rod 42 to realize the reciprocating swing of the movable pressure plate 40.
The push rod 42 is a part of a cylinder 43, and the cylinder 43 drives the push rod 42 to reciprocate by means of hydraulic pressure or pneumatic pressure.
In order to further facilitate the material to enter the crushing cavity 50, the feeding chute 101 has a feeding section 102 facing the feeding port, and the width of the feeding chute 101 in the feeding section 102 is gradually increased along the direction from the rear end to the front end of the feeding structure 100, so that the feeding section 102 is wider and the material can slide down conveniently.
Further, along the direction from the rear end to the front end of the feeding structure 100, the bottom of the feeding section 102 is arranged obliquely downwards, and the inclination angle of the bottom of the feeding section 102 is larger than that of the bottom of the feeding chute 101, so that the material sliding to the vicinity of the feeding section 102 can fall down conveniently.
The rear end of the feeding chute 101 is closed, the front end of the feeding chute 101 is open, and the front end of the feeding chute 101 is communicated with the feeding hole, so that the materials can be conveniently stored.
Of course, the rear end of the feeding chute 101 may be opened, a conveyor belt is disposed at the rear end of the feeding chute 101, the material may be directly conveyed into the feeding chute 101 via the conveyor belt, and the material is placed into the crushing cavity 50 in batches by the vibration of the vibrator 80, so as to realize full-automatic control of the material.
The adjusting structure 90 is arranged below the vibrator 80, the height of the vibrator 80 can be adjusted by the adjusting structure 90, and the adjusting structure 90 can be in a threaded rotation mode, a splicing mode, a hydraulic mode and the like, and only the basic function of adjusting the height of the vibrator 80 can be achieved.
Through the above-mentioned adjusting structure 90, adjust the height of vibrator 80, because the front end of feeding structure 100 is articulated with support 70 and arranges, like this, when vibrator 80 pushes up the rear end of feeding structure 100, the inclination of feeding structure 100 increases, the dropping of the material of being more convenient for to the realization is to feed speed's control.
The feeding structure 100 has a bottom end face arranged towards the vibrator 80, a concave groove is formed in the bottom end face, and the vibration shaft 81 of the vibrator 80 is arranged in the concave groove, so that the vibrator 80 is more stably matched with the feeding structure 100 directly, and dislocation and inclination are not easy to occur in the vibration process.
Be provided with spacing post in the both sides of feed structure 100, drive the in-process of feed structure 100 vibration at vibrator 80, spacing post can restrict the position of feed structure 100 horizontal direction, further avoids feed structure 100 to take place the emergence of the condition of dislocation, slope.
The concave groove is internally provided with a buffer structure, and when the vibrator 80 vibrates in a reciprocating manner, the vibration shaft 81 of the vibrator 80 is abutted against the buffer structure, so that the effects of buffering and shock absorption can be achieved.
The buffer structure can be a rubber pad or any other material capable of playing a buffer role.
Be provided with fixed column 71 on support 70, fixed column 71 vertically extends to the top of organism 20, the upper end fixedly connected with extensible member 72 of fixed column 71, the other end of extensible member 72 and the rear end fixed connection of feed structure 100, extensible member 72 is the state of prestretching, and like this, in vibrator 80 vibration in-process, play the spacing effect of feed structure 100 swing in-process on the one hand, and on the other hand, can also play and draw feed structure 100 continuously, and the in-process of luffing motion is more merrily and lightheartedly, laborsaving, reduction operating cost.
The extensible member 72 is a spring column, and may be a material having an extensible property such as an extensible rod or a rubber band.
The bottom of the feeding chute 101 is arranged roughly, so that unnecessary sliding of materials in the feeding chute 101 can be avoided, and errors of feeding amount in the feeding process are reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A construction method for transporting and crushing earthwork of a foundation pit is characterized by comprising the following construction steps:
s1, excavating the earthwork at the bottom of the foundation pit by an excavator;
s2, arranging a first horizontal transmission structure at the bottom of the foundation pit;
s2, directly dropping the earthwork excavated by the excavator into the input end of the first horizontal transmission structure;
s3, connecting the output end of the first horizontal transmission structure with a feed hopper of a crusher, conveying the earthwork into the feed hopper of the crusher through the first horizontal transmission structure, crushing the earthwork by the crusher, and crushing the earthwork into an earthwork material;
s4, arranging a plurality of inclined conveyor belts at the edge of the foundation pit, arranging a discharge port of the crusher above the inclined conveyor belts, fixedly arranging the inclined conveyor belts on the inner side wall of the foundation pit, and sequentially arranging and extending the inclined conveyor belts to the top of the foundation pit;
s5, conveying the soil and stone materials to the top of the foundation pit through the inclined conveyor belt, and conveying the soil and stone materials to a yard through a fourth inclined conveyor belt for centralized stacking;
s6, further crushing and screening the soil and stone materials in a storage yard by using a counterattack type mobile crushing station, and mechanically processing the soil and stone materials into silt, coarse sand, gravel sand and broken stone for subsequent utilization;
the first horizontal conveying structure is a roller conveyor, a first horizontal conveying belt is arranged right below the first horizontal conveying structure, the inclined conveying belt extends towards the direction of the output end of the first horizontal conveying belt to form an extension section, and the output end of the first horizontal conveying belt is arranged above the extension section; the inclined conveyor belts at least comprise a first inclined conveyor belt, a second inclined conveyor belt and a third inclined conveyor belt, and the first inclined conveyor belt, the second inclined conveyor belt and the third inclined conveyor belt are sequentially arranged from the bottom to the top of the foundation pit;
the first inclined conveyor belt has the extension section, the input end of the first inclined conveyor belt is arranged below the discharge hopper of the crusher, the extension section is arranged below the first horizontal conveyor belt, the output end of the first inclined conveyor belt is arranged above the input end of the second inclined conveyor belt, the output end of the second inclined conveyor belt is arranged above the input end of the third inclined conveyor belt, and the output end of the third inclined conveyor belt is arranged above the fourth inclined conveyor belt;
a vibrator is arranged on the first horizontal transmission structure;
and a filter screen is paved on the transmission surface of the roller conveyor, and the size of the mesh of the filter screen is consistent with the particle size of the required filtered earthwork.
2. The construction method for transporting and crushing the earthwork of the foundation pit according to claim 1, wherein a discharge baffle is arranged at the output end of the first horizontal conveyor belt, a feeding passage is arranged in the middle of the discharge baffle, the discharge baffle comprises a feeding end and a discharging end, the feeding end is provided with a feeding opening, the discharging end is provided with a discharging opening, the feeding end of the discharge baffle is fixedly connected with the output end of the first horizontal conveyor belt and is arranged below the output end, and the discharging end of the discharge baffle extends to be right above the extension section; the two sides of the inner side wall of the extension section are provided with outward-expanded guard plates, the height of each guard plate is higher than that of the side wall of the first horizontal conveying belt, and the discharge ends of the discharge baffles are arranged on the inner sides of the guard plates.
3. The foundation pit earthwork transportation and crushing treatment construction method according to claim 1, wherein the length of the first horizontal conveyor belt is greater than the length of the first horizontal transfer structure, and the width of the first horizontal conveyor belt is greater than the width of the first horizontal transfer structure.
4. The method of claim 1, wherein in step S4, a supporting structure is constructed on the inner side wall of the foundation pit, the supporting structure comprises a plurality of supporting beams, the supporting beams are drilled and implanted on the inner side wall of the foundation pit, one end of each supporting beam is embedded in the inner side wall of the foundation pit, and the other end of each supporting beam is arranged inside the foundation pit and is arranged in an empty position; the supporting beams ascend in sequence along the direction from the bottom to the top of the foundation pit, and the inclined conveyor belt is fixedly arranged on the upper surfaces of the supporting beams.
5. A method as claimed in claim 4, wherein the support beams include a plurality of horizontal support beams and a plurality of inclined support beams, the front ends of the horizontal support beams are embedded in the inner side walls of the foundation pit, the rear ends of the horizontal support beams are horizontally disposed in a vacant position, the inclined support beams are disposed right below the horizontal support beams, the front ends of the inclined support beams are embedded in the inner side walls of the foundation pit, the rear ends of the inclined support beams extend obliquely upward toward the horizontal support beams and abut against the rear ends of the horizontal support beams, and the inclined conveyor belts are fixedly disposed on the upper surfaces of the horizontal support beams.
6. A construction method for transporting and crushing earthwork of a foundation pit according to any one of claims 1 to 5, wherein a supporting beam is built at the middle part of the side wall of the foundation pit, a supporting platform is arranged on the supporting beam, a reinforcing beam is vertically extended on the supporting platform, and the top of the reinforcing beam is fixedly connected with the lower surface of the inclined conveyor belt.
7. A method of performing foundation pit earthwork transport and crushing treatment according to any one of claims 1 to 5, wherein an inclination angle of the inclined conveyor belt is set to 30 °.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010366407.1A CN111549846B (en) | 2020-04-30 | 2020-04-30 | Construction method for foundation pit earthwork transportation and crushing treatment |
| PCT/CN2020/123775 WO2021218078A1 (en) | 2020-04-30 | 2020-10-26 | Construction method for foundation pit earthwork transportation and crushing |
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| CN202010366407.1A CN111549846B (en) | 2020-04-30 | 2020-04-30 | Construction method for foundation pit earthwork transportation and crushing treatment |
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| CN111549846B true CN111549846B (en) | 2021-09-24 |
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| CN111549846B (en) * | 2020-04-30 | 2021-09-24 | 深圳市工勘岩土集团有限公司 | Construction method for foundation pit earthwork transportation and crushing treatment |
| CN112854230B (en) * | 2021-01-09 | 2024-03-15 | 湖南省城乡建设勘测院有限公司 | Construction method of deep foundation pit and conveying device of soil for deep foundation pit |
| CN113882386A (en) * | 2021-11-02 | 2022-01-04 | 山东振盛建设工程有限公司 | High slope earth and stone excavation protection method |
| CN114718074A (en) * | 2022-02-18 | 2022-07-08 | 中交上海航道局有限公司 | Excavation method for foundation pit in soft soil stratum |
| CN115404874B (en) * | 2022-07-31 | 2023-11-03 | 山西恒昱建设工程有限公司 | Building deep foundation pit structure convenient to prevent foundation pit edge soil accumulation |
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| WO2021218078A1 (en) | 2021-11-04 |
| CN111549846A (en) | 2020-08-18 |
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