CN110565619B - Foundation tamping device for civil engineering - Google Patents

Foundation tamping device for civil engineering Download PDF

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Publication number
CN110565619B
CN110565619B CN201910875037.1A CN201910875037A CN110565619B CN 110565619 B CN110565619 B CN 110565619B CN 201910875037 A CN201910875037 A CN 201910875037A CN 110565619 B CN110565619 B CN 110565619B
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China
Prior art keywords
tamping
hole
sleeve
ramming
frame
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CN201910875037.1A
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CN110565619A (en
Inventor
段玮玮
李强
黄柱
曹露
马惠彪
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Zhejiang Ocean University ZJOU
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Zhejiang Ocean University ZJOU
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/046Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/046Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/054Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil involving penetration of the soil, e.g. vibroflotation
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/08Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02Placing by driving
    • E02D7/06Power-driven drivers
    • E02D7/08Drop drivers with free-falling hammer
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02Placing by driving
    • E02D7/06Power-driven drivers
    • E02D7/14Components for drivers inasmuch as not specially for a specific driver construction
    • E02D7/16Scaffolds or supports for drivers

Abstract

The invention discloses a foundation tamping device for civil engineering, which belongs to the technical field of ground foundation reinforcement and comprises: the frame, the supporting shoe is fixed in the frame upper end, the rotatable gyro wheel of fixedly connected with on the supporting shoe, the subassembly of ramming, the frame displacement from top to bottom relatively, the subassembly of ramming is connected with the rope body, pulling/releasing through the rope body makes the subassembly of ramming displace from top to bottom in the vertical direction, the rope body passes the frame and is connected with gyro wheel 12 cooperation, first sleeve pipe, locate the hole bottom surface in the hole that the subassembly of ramming tamped the formation, first sleeve pipe upper end mouth of pipe surface is parallel with the hole bottom surface in the hole that the subassembly of ramming tamped the formation, consolidate the subassembly, lay in the hole that the subassembly of ramming tamped the formation, and lay at the vertical direction interval, the interval department separates through the packing. The invention effectively carries out foundation stabilization work on the tamping area and prevents the settlement of the soil layer of the soil body underlying layer.

Description

Foundation tamping device for civil engineering
Technical Field
The invention belongs to the technical field of land foundation reinforcement, and particularly relates to a foundation tamping device for civil engineering.
Background
At present, in a building place, before a house is built, the ground needs to be tamped, a tamping vehicle has to be used at the moment, the general tamping vehicle drives a turntable through an engine and then drives a connection tamping weight block to move upwards, when the tamping weight block moves upwards to the highest point, the control action of the turntable on the tamping weight block is disconnected, at the moment, the tamping weight block falls under the action of gravity, so that the ground is tamped, and during actual work, the tamping mode possibly causes the settlement of a soil layer below a reinforced soil body.
Disclosure of Invention
The invention aims to provide a foundation tamping device for civil engineering, which can effectively perform foundation stabilization work on a tamping area and prevent a soil layer of a soil lower lying layer from settling.
The technical scheme adopted by the invention for realizing the purpose is as follows: a foundation-tamping device for civil engineering, comprising:
a machine frame, a plurality of guide rails and a plurality of guide rails,
a supporting block fixed at the upper end of the frame, a rotatable roller fixedly connected to the supporting block,
the tamping component can move up and down relative to the frame, the tamping component is connected with the rope body, the tamping component can move up and down in the vertical direction by pulling/releasing the rope body, the rope body passes through the frame to be connected with the roller in a matching way,
the first sleeve is arranged on the hole bottom surface of the hole formed by the tamping of the tamping component, the surface of the pipe orifice at the upper end of the first sleeve is parallel to the hole bottom surface of the hole formed by the tamping of the tamping component,
and the reinforcing component is laid in the hole formed by tamping of the tamping component and is laid at intervals in the vertical direction, and the intervals are separated by the packing layer.
The invention controls the retraction of the rope body by controlling the forward and reverse rotation of the winding mechanism, realizes the control of the height position of the tamping component, utilizes the gravity of the tamping component to form a vertical impact load with relatively high energy on the tamped ground in the tamping process, uses the tamping component to hammer the first sleeve into the ground when the ground is tamped to a certain depth layer, utilizes the upper soil layer of the tamping surface of the first sleeve to play a supporting role, ensures that the impact load of the tamping component impacts downwards in the same vertical direction each time through the first sleeve, utilizes the tubular structure to ensure that the impact force forms a circumferential shape to diffuse outwards to act on the soil body around the first sleeve when the impact force is transmitted to the first sleeve, enhances the penetrating capability of the load force in the soil body in the tamping process, can obtain more uniform compactness in a larger depth range, and simultaneously enhances the connection tightness between a tamping area and the soil body nearby by continuously laying the reinforcing component in a hole formed by tamping, the foundation is reinforced by the filler layer to deal with the possible soil body sinking.
Optionally, the tamping assembly comprises a counterweight cylinder connected with the rope body, the bottom surface of the counterweight cylinder is fixedly connected with the tamping plate, the spring part is sleeved outside the counterweight cylinder, and the bottom end of the spring part is fixedly connected with the tamping plate. The invention selects the tamping plate arranged at the bottom of the counterweight cylinder so that the counterweight cylinder drives the tamping plate to accelerate and compact the ground from a static state every time of tamping, and the spring part is sleeved outside the counterweight column body, so that the counterweight column body utilizes the spring to store energy in the upward pulling process, the downward acceleration speed of the tamping plate is further increased, compared with the existing hydraulic tamping mode, the peak value of the acting force of the tamping component is small, because the spring part releases energy during downward tamping, the contact time between the action of the tamping plate and the ground is relatively prolonged, the action of the tamping plate is soft, the problem of shearing and damaging the soil body is not easy to occur, and have the function of preventing raise dust, splashing, adopt counter weight cylinder bottom to set up the cooperation spring part of ramming board, obtain the effort that the ramming produced again stronger through-force and even in the soil layer, the soil layer surface is difficult for forming the top layer induration simultaneously.
Optionally, the frame is provided with a limiting plate for limiting the upward movement distance of the spring part of the tamping assembly, and the limiting plate is provided with a through hole for the counterweight column to pass through. The limiting plate plays a limiting role in spring parts on the tamping assembly, specifically, in the upward movement process of the rope pulling counterweight cylinder, the tamping plate is utilized to move the spring parts to move upwards, the spring parts are limited by controlling the through hole aperture on the limiting plate, and then the spring parts are compressed to store energy, after the rope is loosened, the spring parts release energy, the downward acceleration speed of the tamping plate is further increased, and the tamping plate is driven to accelerate and compact the ground under a static state.
Optionally, the tamping surface of the tamping plate is rectangular, and the shape of the through hole in the limiting plate corresponds to the shape of the counterweight column. The counterweight cylinder is cylindrical, and the compaction plate is limited by setting the shape of the through hole in the limiting plate and the shape of the compaction plate so as to control the compression ratio of the spring part between the compaction plate and the limiting plate, obtain larger spring energy release and enlarge the downward acceleration of the compaction plate.
Optionally, the solid post of pegging graft in first sleeve inside, the solid post is the metal cylinder, improves the supporting role of first sleeve through set up the solid post of metal in first sleeve inside to utilize the solid post to prevent ramming subassembly downward impact force to the diffusion of first sleeve inside direction, be used for guaranteeing that the impact force forms the circumference form and outwards spreads the soil body that acts on around the first sleeve, the penetration ability of the loading force in the soil body of reinforcing ramming in-process.
Optionally, an inner groove is arranged around the outer wall of the first sleeve, the inner groove is Z-shaped, the upper and lower parallel groove bodies of the inner groove are arranged in parallel with the axis of the first sleeve, the connection tightness between the first sleeve and the surrounding soil body is enhanced by arranging the inner groove on the outer wall of the first sleeve, the inner grooves are utilized to ensure the verticality of the first sleeve in the process of pressing the first sleeve downwards into the soil body, and further the inner grooves are arranged to be Z-shaped in order to continuously reduce the pore ratio when the soil body is stressed in the process of tamping the soil body, the soil body of first sleeve pipe outer wall can guide to the inner groovy in to its extrusion force and along with the soil body produces impact deformation and follow the interior recess of Z and move down, guide upper portion soil body deformation downwards around the first sleeve pipe to with the downward transmission of impact load, strengthen the closely knit degree of the soil layer of first sleeve pipe bottom.
Optionally, the reinforcing component comprises at least two connecting main boards arranged in parallel, the corresponding side faces between the connecting main boards are connected through connecting strips, the connecting strips are perpendicular to the connecting main boards, the connecting strips are arranged in a manner of being arranged, the outer side faces of the connecting main boards are connected with fastening strips arranged in a manner of being arranged, and the fastening strips are inserted into the hole wall of the hole body formed by tamping of the tamping component in an inclined state. Utilize the reinforcement subassembly to lay in the cavity of ramming formation in layers and connect the soil body outside the region of ramming through the fastening strip, make the tamping force of ramming regional soil body at the tamping in-process spread, enlarge the range of ramming, and through the mode of laying the packing layer between the reinforcement subassembly come the regional soil layer compactness of further promotion ramming formation, arrange the setting through connecting the strip body and make and have the hole between it, this mode is favorable to consolidating the zonulae occludens between the packing layer about the subassembly, make the soil body granule in the packing layer of upper and lower floor of reinforcement subassembly be close to closely knit, the soil body consolidation, improve rammed soil body connection structure and mechanical properties.
Optionally, the reinforcing component is separated by the packing layer in the vertical direction, the packing layer on the upper portion of the reinforcing component is tamped by the tamping component and then is placed, and the reinforcing component and the packing layer are sequentially placed until the packing layer is filled to the ground height. The hole that forms the tamping through the mode that sets up the packing layer forms the packing to be favorable to carrying out the layering setting with the reinforcement subassembly, improve the compactness of being connected of the soil layer of tamping soil layer rather than near not co-altitude layer, improve the bearing capacity of tamping soil layer.
Optionally, be equipped with the soundproof cotton who is used for reducing the noise of ramming in the frame, reduce the noise that the ramming produced to alleviate the influence to the surrounding environment, choose soundproof cotton simultaneously still to be favorable to the dust absorption.
Compared with the prior art, the invention has the beneficial effects that: the invention controls the retraction of the rope body by controlling the forward and reverse rotation of the winding mechanism, realizes the control of the height position of the tamping component, utilizes the gravity of the tamping component to form a vertical impact load with relatively high energy on the tamped ground in the tamping process, uses the tamping component to hammer the first sleeve into the ground when the ground is tamped to a certain depth layer, utilizes the upper soil layer of the tamping surface of the first sleeve to play a supporting role, ensures that the impact load of the tamping component impacts downwards in the same vertical direction each time through the first sleeve, utilizes the tubular structure to ensure that the impact force forms a circumferential shape to diffuse outwards to act on the soil body around the first sleeve when the impact force is transmitted to the first sleeve, enhances the penetrating capability of the load force in the soil body in the tamping process, can obtain more uniform compactness in a larger depth range, and simultaneously enhances the connection tightness between a tamping area and the soil body nearby by continuously laying the reinforcing component in a hole formed by tamping, to cope with the situation of soil subsidence which may occur.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic illustration of a tamping assembly hammering a first casing and a solid post;
FIG. 2 is a schematic illustration of peening of a laid packing layer by a tamper assembly;
FIG. 3 is a schematic view of the ramming assembly hammering the packing layer at an elevation above ground;
FIG. 4 is a schematic view of a tamper assembly;
FIG. 5 is a schematic ground view after tamping is complete;
FIG. 6 is a schematic view of a reinforcement assembly construction;
FIG. 7 is a front view of the first sleeve;
FIG. 8 is a graph of the results of measuring ground settlement after each tamping in example 4;
fig. 9 is a graph of the soil compaction degree measured at different tamping times in example 4.
Description of reference numerals: 10-a frame; 11-a support block; 12-a roller; 13-a limiting plate; 14-soundproof cotton; 20-a rope body; 30-a tamper assembly; 31-a counterweight cylinder; 32-a spring member; 33-compacting the board; 40-a first sleeve; 401 — inner grooves; 41-solid column; 50-a filler layer; 60-a reinforcement component; 61-connecting the bars; 62-connecting the main board; 63-fastening strips.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1 to 7, a foundation-tamping device for civil engineering, comprising:
the frame 10 is provided with a plurality of supporting frames,
a supporting block 11, the supporting block 11 is fixed on the upper end of the frame 10, the supporting block 11 is fixedly connected with a rotatable roller 12,
the tamping assembly 30 can move up and down relative to the frame 10, the tamping assembly 30 is connected with the rope body 20, the tamping assembly 30 moves up and down in the vertical direction through pulling/releasing the rope body 20, the rope body 20 penetrates through the frame 10 to be matched and connected with the roller 12,
a first sleeve 40 which is arranged on the hole bottom surface of the hole formed by the tamping component 30 in a tamping mode, the surface of the pipe orifice at the upper end of the first sleeve 40 is parallel to the hole bottom surface of the hole formed by the tamping component 30 in a tamping mode,
and reinforcing elements 60 which are laid in the holes formed by the tamping elements 30 and are vertically spaced apart by the layer of packing 50.
The invention controls the retraction of the rope body 20 by controlling the forward and reverse rotation of the winding mechanism, realizes the control of the height position of the tamping component 30, utilizes the gravity of the tamping component 30 to form a vertical impact load with relatively high energy on the tamped ground in the tamping process, utilizes the tamping component 30 to hammer the first sleeve 40 into the ground when the ground is tamped to a certain depth layer, utilizes the first sleeve 40 to tamp the upper soil layer of the surface to play a supporting role, ensures the impact load of the tamping component 30 to impact downwards in the same vertical direction each time through the first sleeve 40, utilizes the tubular structure to form a circumferential shape to diffuse outwards to act on the soil around the first sleeve 40 when the impact force is transmitted to the first sleeve 40, enhances the penetrating capability of the load force in the soil body in the tamping process, and can obtain more uniform compactness in a large range of a larger depth, meanwhile, the connection tightness between the tamping area and the soil body nearby is enhanced by continuously laying the reinforcing components 60 in the holes formed by tamping so as to deal with the possible soil body sinking condition, and the integral foundation bearing capacity is enhanced by the packing layer 50.
The tamping assembly 30 comprises a counterweight column body 31 connected with the rope body 20, a tamping plate 33 is fixedly connected with the bottom surface of the counterweight column body 31, a spring element 32 is sleeved outside the counterweight column body 31, and the bottom end of the spring element 32 is fixedly connected with the tamping plate 33. The invention selects the tamping plate 33 arranged at the bottom of the counterweight cylinder 31 so that the counterweight cylinder 31 drives the tamping plate 33 to accelerate and compact the ground from a static state each time of tamping, and the spring part 32 is sleeved outside the counterweight cylinder 31 so that the counterweight cylinder 31 utilizes the spring to store energy in the process of pulling up, thereby further expanding the downward acceleration speed of the tamping plate 33, compared with the existing hydraulic tamping mode, the acting force peak value of the tamping component 30 of the invention is small, because the spring part 32 releases energy in downward tamping, the contact time of the tamping plate 33 and the ground is relatively prolonged, the action of the tamping plate 33 is softer, the problem of shearing and damaging the soil body is not easy to generate, and the invention has the functions of preventing dust raising and splashing, the tamping plate 33 arranged at the bottom of the counterweight cylinder 31 is matched with the spring part 32, the acting force generated by tamping is obtained, and the strong penetrating power and the soil layer are uniform, meanwhile, the surface of the soil layer is not easy to form surface hardbanding.
The frame 10 is provided with a limiting plate 13 for limiting the upward movement distance of the spring member 32 of the tamper assembly 30, and the limiting plate 13 is provided with a through hole for passing the weight cylinder 31. Play limiting displacement through limiting plate 13 to the spring part 32 on the subassembly 30 that tamps, specifically, at the rope 20 pulling counter weight cylinder 31 rebound in-process, utilize tamping plate 33 to drive spring part 32 rebound, through the passage of the control restriction spring part 32 in the through-hole aperture on the limiting plate 13, and then spring part 32 compression energy storage, after the rope 20 loosens, spring part 32 energy release further enlarges the downward acceleration rate of tamping plate 33, orders about tamping plate 33 by the compaction ground that accelerates under the static state.
The tamping plate 33 has a rectangular tamping surface, and the shape of the through hole formed in the limiting plate 13 corresponds to the shape of the counterweight cylinder 31. The counterweight column 31 is cylindrical, and the compaction plate 33 is limited by setting the shape of the through hole on the limit plate 13 and the shape of the compaction plate 33 so as to control the compression ratio of the spring part 32 between the compaction plate 33 and the limit plate 13, obtain larger spring energy release and enlarge the downward acceleration of the compaction plate 33.
Inside grafting solid post 41 of first sleeve pipe 40, solid post 41 is the metal cylinder, improves the supporting role of first sleeve pipe 40 through set up metal solid post 41 inside first sleeve pipe 40 to utilize solid post 41 to prevent ramming subassembly 30 downward impact force to the inside direction diffusion of first sleeve pipe 40, be used for guaranteeing that the impact force forms the soil body around the circumference form outward diffusion effect on first sleeve pipe 40, the penetration ability of the loading force in the reinforcing ramming process in the soil body.
An inner groove 401 is arranged around the outer wall of the first sleeve 40, the inner groove 401 is Z-shaped, the upper and lower parallel groove bodies of the inner groove 401 are arranged in parallel with the axis of the first sleeve 40, the connection tightness of the first sleeve 40 and the surrounding soil body is enhanced by arranging the inner groove 401 on the outer wall of the first sleeve 40, the inner groove 401 is used to ensure the verticality of the first sleeve 40 in the process of pressing the first sleeve 40 down into the soil body, and further, the inner groove is arranged to be Z-shaped in order to continuously reduce the pore ratio when the soil body is stressed in the process of tamping the soil body, the soil body of the outer wall of the first sleeve 40 can be guided into the inner groove 401 to extrude towards the extrusion force, and the soil body generates impact deformation along with the soil body and moves downwards along the inner groove 401 in the Z line, so that the soil body on the upper part around the first sleeve 41 is guided to deform downwards, impact load is transmitted downwards, and the compactness of the soil layer at the bottom of the first sleeve 40 is enhanced.
The reinforcing component 60 comprises at least two connecting main boards 62 arranged in parallel, corresponding sides between the connecting main boards 62 are connected through connecting strip-shaped bodies 61, the connecting strip-shaped bodies 61 are perpendicular to the connecting main boards 62, the connecting strip-shaped bodies 61 are arranged in a manner of being arranged, the outer side faces of the connecting main boards 62 are connected with fastening strips 63 arranged in a manner of being arranged, and the fastening strips 63 are inserted into hole walls of hole bodies formed by tamping of the tamping component 30 in an inclined state. Utilize reinforcement subassembly 60 to lay in the cavity of ramming formation in layers and connect the soil body outside the region of ramming through fastening strip 63, make the tamping force of the regional soil body of ramming in the tamping in-process spread, enlarge the range of ramming, and through the mode of laying packing layer 50 between reinforcement subassembly 60 come the regional soil layer compactness of further promotion ramming formation, through arranging connection strip body 61 and setting up and make it have the hole between it, this mode is favorable to consolidating the zonulae occludens between the packing layer 50 about subassembly 60, make the soil body granule in the packing layer 50 of upper and lower floor of reinforcement subassembly 60 be close to closely knit, the soil body concreties, improve rammed soil body connection structure and mechanical properties.
The reinforcing members 60 are vertically separated by the packing layer 50, and the upper portion of the packing layer 50 of the reinforcing members 60 is compacted by the compacting member 30 and then the reinforcing members 60 are placed, so that the reinforcing members 60 and the packing layer 50 are sequentially placed until the packing layer 50 is filled to the ground level. The holes formed by tamping are filled by the mode of arranging the packing layer 50, the reinforcing component 60 is arranged in a layered mode, the connection tightness of the tamped soil layer and the soil layers of the nearby layers with different heights is improved, and the bearing capacity of the tamped soil layer is improved.
The sound insulation cotton 14 for reducing tamping noise is arranged on the machine frame 10, so that the noise generated by tamping is reduced, the influence on the surrounding environment is reduced, and the sound insulation cotton is also favorable for dust collection.
Example 2:
when the foundation tamping device for civil engineering works actually:
s10: selecting a tamping area, installing the frame 10 in a tamping foundation area, fixing the frame 10, installing a winding mechanism near the frame 10, and connecting the winding mechanism with the rope body 20 for winding/unwinding the rope body 20 to realize the conversion of the upper and lower height positions of the tamping assembly 30.
S20: the foundation tamping work is carried out on the tamping area by controlling the retracting and releasing control tamping component 30 of the winding mechanism until a rectangular hole formed by tamping appears on the tamping ground, the tamping compactness is measured, and the first sleeve pipe 40 and the solid column 41 are sequentially pressed into the hole formed by tamping.
S30: the reinforcing component 60 is placed on the upper portion of the first sleeve 40, the reinforcing component 60 is arranged in surface contact with the first sleeve 40, the fastening strips 63 are inserted into the hole wall of the hole body formed by tamping through the tamping component 30 in an inclined state, then the packing layer 50 is laid for tamping, and then the reinforcing component 60 and the packing layer 50 are placed for tamping until the packing layer 50 is filled to the ground level.
S40: the fill 50 is tamped to a level above the ground level until it is flush with the ground.
Example 3:
in the embodiment, the foundation tamping device for civil engineering is used for tamping an initial soil layer, the particle size range of the soil layer is 6-16 mm, the density is 2310Kg/m3, the ground settlement is measured after each tamping in the tamping operation, as shown in figure 8, meanwhile, the soil layer compaction degree under different tamping times is measured, as shown in figure 9, through tests, the soil layer compacted by the foundation tamping device for civil engineering disclosed by the invention quickly reaches the standard in a few times, the foundation reinforcing operation is effectively carried out on a tamping area, and the settlement of a soil layer under a soil body is prevented.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims (5)

1. A foundation-tamping device for civil engineering, comprising:
a machine frame, a plurality of guide rails and a plurality of guide rails,
the supporting block is fixed at the upper end of the frame, a rotatable roller is fixedly connected to the supporting block,
the tamping component can move up and down relative to the frame, the tamping component is connected with the rope body, the tamping component can move up and down in the vertical direction by pulling/releasing the rope body, the rope body passes through the frame and is connected with the roller in a matching way,
the first sleeve is arranged on the hole bottom surface of the hole formed by the tamping of the tamping component, the surface of the pipe orifice at the upper end of the first sleeve is parallel to the hole bottom surface of the hole formed by the tamping of the tamping component,
the reinforcing components are laid in the holes formed by tamping of the tamping components and are laid at intervals in the vertical direction, and the intervals are separated by a filler layer;
an inner groove is formed in the outer wall of the first sleeve in a surrounding mode, the inner groove is Z-shaped, and an upper groove body and a lower groove body of the inner groove are parallel to the axis of the first sleeve;
the reinforcing assembly comprises at least two connecting main boards which are arranged in parallel, corresponding side surfaces between the connecting main boards are connected through connecting strip-shaped bodies, the connecting strip-shaped bodies and the connecting main boards are arranged vertically, the connecting strip-shaped bodies are arranged in an arrangement mode, the outer side surfaces of the connecting main boards are connected with fastening strips arranged in an arrangement mode, and the fastening strips are inserted into the hole wall of the hole body formed by tamping of the tamping assembly in an inclined state;
the reinforcing components are separated by the packing layer in the vertical direction, the packing layer on the upper part of the reinforcing components is tamped by the tamping component and then is placed, and the reinforcing components and the packing layer are sequentially placed in this way until the packing layer is filled to the ground height;
and the sound insulation cotton for reducing tamping noise is arranged on the rack.
2. The foundation tamping device for civil engineering according to claim 1, characterized in that: the tamping assembly comprises a counterweight cylinder connected with the rope body, the bottom surface of the counterweight cylinder is fixedly connected with the tamping plate, the spring part is sleeved outside the counterweight cylinder, and the bottom end of the spring part is fixedly connected with the tamping plate.
3. The foundation tamping device for civil engineering according to claim 2, characterized in that: the frame is provided with a limiting plate used for limiting the spring part of the tamping assembly to move upwards, and the limiting plate is provided with a through hole for the counterweight column to pass through.
4. The foundation tamping device for civil engineering according to claim 3, characterized in that: the tamping surface of the tamping plate is rectangular, and the shape of the through hole in the limiting plate corresponds to that of the counterweight cylinder.
5. The foundation tamping device for civil engineering according to claim 1, characterized in that: and a solid column is inserted into the first sleeve, and the solid column is a metal column.
CN201910875037.1A 2019-09-17 2019-09-17 Foundation tamping device for civil engineering Active CN110565619B (en)

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CN110565619B true CN110565619B (en) 2021-04-23

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CN209368603U (en) * 2018-11-30 2019-09-10 沈阳建筑大学 Waste rubber tire crushed stone-concrete combined pile foundation

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