CN106284287A - A kind of spherical strong rammer hammer - Google Patents

A kind of spherical strong rammer hammer Download PDF

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Publication number
CN106284287A
CN106284287A CN201610876099.0A CN201610876099A CN106284287A CN 106284287 A CN106284287 A CN 106284287A CN 201610876099 A CN201610876099 A CN 201610876099A CN 106284287 A CN106284287 A CN 106284287A
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CN
China
Prior art keywords
hammer body
hammer
strong rammer
spherical
hammered
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Pending
Application number
CN201610876099.0A
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Chinese (zh)
Inventor
何国富
孙亮富
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Sinopec Engineering Group Co Ltd
Sinopec Shanghai Engineering Co Ltd
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Sinopec Engineering Group Co Ltd
Sinopec Shanghai Engineering Co Ltd
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Application filed by Sinopec Engineering Group Co Ltd, Sinopec Shanghai Engineering Co Ltd filed Critical Sinopec Engineering Group Co Ltd
Priority to CN201610876099.0A priority Critical patent/CN106284287A/en
Publication of CN106284287A publication Critical patent/CN106284287A/en
Pending legal-status Critical Current

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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
    • E02D3/054Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil involving penetration of the soil, e.g. vibroflotation

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention discloses a kind of spherical strong rammer hammer, the hanger (1) being connected with described hammer body (2) top including hammer body (2), described hammer body (2) is spherical, being provided with piezoelectric acceleration sensor (3) and wireless signal transmitter (4) in described hammer body (2), described wireless signal transmitter (4) is connected with described piezoelectric acceleration sensor (3).The spherical strong rammer hammer structure of the present invention is very simple, convenient implements, and compared with other hammer ends, can be prevented effectively from the levelness difference of the hammer end contact soil body and cause the uneven problem of the soil body under tamping pit.

Description

A kind of spherical strong rammer hammer
Technical field
The invention belongs to field of civil engineering, relate to a kind of dynamic consolidation construction facility, particularly relate to the ball of a kind of deep-layer reinforcing Shape strong rammer is hammered into shape.
Background technology
Heavy-tamping method is the most common a kind of basement process reinforcement technique.By loop wheel machine, the hammer ram of certain mass is risen to Certain height, unclamps unhook, and hammer ram freely falls from eminence, produces the die-cut upper table soil body of powerful impact energy and forms tamping pit, The shock wave that impact energy produces, in the soil body, reaches to make the loose soil body closely knit.Existing strong rammer device mainly includes hanging Machine, hanging-break off relations and hammer ram three part, the most especially with hammer ram as key equipment, it directly influences the consolidation effect to the soil body, mesh Front widely used hammer ram form is flat top fuller type.Owing to the hammer end is circular flat bottom, the strong rammer applying in general to shallow soil adds Gu, process the degree of depth and be usually 6-8 rice, the process requirement of most foundation engineering can be met.As the soil of deeper part need to be processed Layer, generally uses cylindrical hammer, and cylindrical hammer is generally accompanied with cheating interior filler, and now heavy-tamping method is by single dynamic consolidation densification It is converted into consolidated compacting and the heavy tamping replacement method of compacted dual function.
Dynamic compaction reinforced foundation generally has an inevitable defect, it is simply that the soil body uniformity after reinforcing is poor.Remove Owing to tamping point can not be covered with whole audience ground, tamping point and objectively existing outside uneven factor between soil between ramming, hammer ram falls ground When table forms tamping pit, hammer ram bottom surface can not land bottom surface entirely simultaneously, and exacerbate in soil stabilization equally is uneven.Because ramming Hammer contacts the moment of the soil body every time after falling, hammer ram bottom surface tilts often, soil around tamping pit face, the lower soil body in hole and tamping pit First body can not reach uniform, and the front tamping pit face caused of once ramming tilts along with second time, third time etc. below repeatedly Ram with position, hole, it is most likely that cause the soil body around whole tamping pit constantly to tilt to the continuous dense extrusion of a direction, this One tilts the reinforcing of ramming caused is partial to so that the soil body around each tamping point the most irregularly causes each to reinforcing inequality Even.Flat hammer ram breaks off relations during falling every time, and hammer ram can not keep the end that main reason is that in hammer ram making of level There is deviation with the mass cg of hammer ram in the face circle centre of form, and the position of suspension centre exists deviation with hammer ram barycenter, additionally falls During wind-force also can have a certain impact.The hammer ram centre of form to be accomplished is completely the same and calm with barycenter with center of gravity, suspension centre State is constructed, and is in fact unrealistic, and what various errors caused ram, and face tilts cannot eliminate.
Those skilled in the art develop the hammer ram bottom hammer ram for arc at present, as patent CN202626967U discloses A kind of circular arc bottom strong rammer hammer, this strong rammer hammer includes hammer body, and the hollow hammer body of described hammer body, its bottom surface is arc surface, at hammer body Have the equally distributed big steam vent of multiple circumference and small de-air hole on arc surface bottom surface, but this circular arc bottom strong rammer hammer is owing to using Cylindrical hollow hammer body, causes the centre of form of hammer ram and center of gravity to there is deviation, and barycenter is higher, be easily caused face of ramming tilt, Ram the problem that dynamics is unstable and the soil body is uneven;Patent CNC202787222U discloses a kind of deep-layer reinforcing rammer, hammer Head is and the hemispherical tup of hammer body equal diameters, and the bottom surface of described hammer body is connected with the disc of hemispherical tup, and The disc center of circle of hemispherical tup is positioned on the centrage of hammer body, but this hammer ram be mainly used as the rammer of deep dynamic compaction inside pile hole fill out and Pore-forming also fills the materials such as element soil, dirt, building waste in hole so that the soil body around each rammer hole is the most irregularly made Becoming each uneven to reinforcing, efficiency of construction is low.
Therefore, there is deviation for the mass cg of hammer ram when hammer ram freely falls in above-mentioned prior art, cause reinforcing After the problem that soil body uniformity is poor, efficiency of construction is low, how to provide one ram stable, consolidation effect is good, construction The deep-layer reinforcing rammer that efficiency is high becomes the technical barrier that people in the art is urgently to be resolved hurrily.
Summary of the invention
For overcoming above-mentioned deficiency of the prior art, the present invention provides one to ram stably, consolidation effect is good, efficiency of construction High spherical strong rammer hammer, this spherical strong rammer hammer can be prevented effectively from the levelness difference of the hammer end contact soil body and cause under tamping pit the soil body not Uniform problem.
The present invention solves above-mentioned technical problem by the following technical solutions:
The first aspect of the invention is to provide a kind of spherical strong rammer hammer, including hammer body 2 and hanging that described hammer body 2 top is connected Ear 1, described hammer body 2 is spherical.
Further, piezoelectric acceleration sensor 3 and wireless signal transmitter 4, described wireless communication it are provided with in described hammer body 2 Number emitter 4 is connected with described piezoelectric acceleration sensor 3.
Further, described hammer body 2 is offered by described hammer body 2 top disc is vertical with the connection of described hanger 1 Screwed hole 5 screw rod 6 threaded engagement that be provided with vertical with hanger 1 bottom surface is connected.
Further, between described hanger 1 and described hammer body 2, it is provided with hemispherical tup 7, hanging down of described hemispherical tup 7 Offering tapped through hole on straight centrage, described hammer body 2 is vertical by described hanger 1 bottom surface with the connection of described hanger 1 The screw rod 6 being provided with is connected through described tapped through hole screwed hole 5 threaded engagement offered vertical with hammer body 2 top disc.
Further, the diameter of described hammer body 2 and described hemispherical tup 7 is than for 1:0.4-0.6.
Further, circular flat horizontal surface 8, the diameter of described hammer body 2 and described circular flat horizontal surface it are set to bottom described hammer body 2 The diameter of 8 is than for 1:0.1-0.2.
Further, bottom described hammer body 2, sphere centre is as starting point, is provided with bottom described hammer body 2 on hemisphere face The air discharge duct 9 being interconnected.
Further, described air discharge duct 9 is rectangular channel, and its width is 1-10mm, and the degree of depth is 0.5-2mm.
Further, with the central shaft of described hammer body 2 as the center of circle, the bottom sphere of described hammer body 2 is provided with annular Protruding 10.
The second aspect of the invention is to provide the application in stiffening basic ground of a kind of described spherical strong rammer hammer.
The present invention uses above technical scheme, compared with prior art, has the following technical effect that
The spherical strong rammer hammer structure of the present invention is very simple, convenient enforcement;With other hammer ends compared with, can be prevented effectively from hammer the end connect The levelness difference of the tactile soil body causes the problem that the soil body under tamping pit is uneven;In the case of hammer ram equal quality, the present invention's is strong Hammer ram material usage is minimum;In the moment of the strong ram contacts soil body, the aeroperformance at the spherical hammer ram hammer end of the present invention is more than flat The end, is hammered into shape;Impulsive force when hammer ram is rammed can be monitored in real time, with according to need by piezoelectric acceleration sensor in being arranged on hammer body The height of drop of hammer ram to be adjusted, controls impulsive force size;Additionally, take detachable hemispherical tup can be effectively improved rammer Hit impact dynamics.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of spherical strong rammer of present invention hammer;
Fig. 2 is the structural representation of the present invention a kind of preferred embodiment spherical strong rammer hammer;
Fig. 3 is the upward view of the spherical strong rammer hammer of a kind of preferred embodiment of the present invention;
In figure: 1-hanger, 2-hammer body, 3-piezoelectric acceleration sensor, 4-wireless signal transmitter, 5-screwed hole, 6-screw rod, 7- Hemispherical tup, 8-circle flat horizontal surface, 9-air discharge duct, 10-annular protrusion.
Detailed description of the invention
Below by specific embodiment, the present invention is carried out detailed and concrete introduction, so that being better understood from the present invention, But following embodiment is not limiting as the scope of the invention.
As it is shown in figure 1, the present embodiment provides a kind of spherical strong rammer hammer, the hanger being connected including hammer body 2 with hammer body 2 top 1, hammer body 2 is spherical.Hammer body 2 and the connection of hanger 1 are by the vertical screwed hole 5 offered of hammer body 2 top disc and hanger 1 time Screw rod 6 threaded engagement that plane perpendicular is provided with connects.Spherical hammer body 2 centre of form used is consistent with center of gravity, and barycenter is relatively low, can be effective Avoid face of ramming to tilt, ram the problem that dynamics is unstable and the soil body is uneven.
Simultaneously for realizing monitoring in real time, controlling ram dynamics and ram effect, it is preferable that be provided with piezoelectricity in hammer body 2 and add Velocity sensor 3 and wireless signal transmitter 4, wireless signal transmitter 4 is connected with piezoelectric acceleration sensor 3;Use piezoelectricity Acceleration transducer 3 can monitor dynamics size when hammer body 2 is rammed in real time, and is sent to control by wireless signal transmitter 4 Ram control system, when ramming dynamics more than the maximum of a certain setting, control to ram control system and send alarm signal and carry Awake operator adjust the height of drop of hammer body 2, ram dynamics to reduce;But when ramming the dynamics minima less than a certain setting Time, control to ram control system and send alarm signal and remind operator to adjust the height of drop of hammer body 2, to improve tamping force Degree.
For improving the consolidation effect of hammer ram, to be more suitable for ground deep-layer reinforcing, it is preferable that between hanger 1 and hammer body 2 Being provided with hemispherical tup 7, the vertical center line of hemispherical tup 7 offers tapped through hole, hammer body 2 with the connection of hanger 1 is The screw rod 6 being vertically provided with by hanger 1 bottom surface is through tapped through hole screwed hole 5 screw thread offered vertical with hammer body 2 top disc It is connected.By installing hemispherical tup 7 additional, thus increase the overall weight of hammer ram so that have on identical height of drop Imitate raising hammer ram rams dynamics, it is achieved the purpose of deep-layer reinforcing.Preferably, hammer body 2 is 1 with the diameter ratio of hemispherical tup 7: 0.4-0.6;It is further preferable that the diameter of hammer body 2 and hemispherical tup 7 is than for 1:0.5.Preferably, circle will be set to bottom hammer body 2 Shape flat horizontal surface 8, the diameter of the diameter of hammer body 2 and circular flat horizontal surface 8 ratio is for 1:0.1-0.2;It is further preferable that the diameter of hammer body 2 With the diameter of circular flat horizontal surface 8 ratio for 1:0.12.
Additionally, for reducing the blast produced in hammer ram dropping process, bottom hammer body 2, sphere centre is as starting point, at hammer body 2 It is provided with, on the hemisphere face of bottom, the air discharge duct 9 being interconnected;Air discharge duct 9 is rectangular channel, and quantity is 4-12, and its width is 1- 10mm, the degree of depth is 0.5-2mm, it is preferable that quantity is 6, and its width is 2-5mm, and the degree of depth is 1-1.5mm, so that blast is timely Discharged by air discharge duct 9.
One aspect of the present embodiment, with the central shaft of hammer body 2 as the center of circle, is provided with ring on the bottom sphere of hammer body 2 Shape projection 10, the impulsive force of hammer ram, when hammer ram lands, effectively can be dispersed on the sphere of hammer body 2, carry by this annular protrusion 10 Soil body uniformity after high foundation stabilization.
Being described in detail the specific embodiment of the present invention above, but it is intended only as example, the present invention does not limit It is formed on particular embodiments described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and Substitute the most all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and Amendment, all should contain within the scope of the invention.

Claims (10)

1. a spherical strong rammer hammer, it is characterised in that include the hanger (1) that hammer body (2) is connected, institute with described hammer body (2) top It is spherical for stating hammer body (2).
Spherical strong rammer the most according to claim 1 is hammered into shape, it is characterised in that is provided with piezoelectric acceleration in described hammer body (2) and passes Sensor (3) and wireless signal transmitter (4), described wireless signal transmitter (4) is with described piezoelectric acceleration sensor (3) even Connect.
Spherical strong rammer the most according to claim 1 is hammered into shape, it is characterised in that described hammer body (2) and the connection of described hanger (1) It is screwed hole (5) screw rod (6) that be provided with vertical with hanger (1) bottom surface vertically offered by described hammer body (2) top disc Threaded engagement connects.
Spherical strong rammer the most according to claim 1 is hammered into shape, it is characterised in that set between described hanger (1) and described hammer body (2) There is hemispherical tup (7), the vertical center line of described hemispherical tup (7) offers tapped through hole, described hammer body (2) and institute Stating the connection of hanger (1) is that the screw rod (6) being vertically provided with by described hanger (1) bottom surface is through described tapped through hole and hammer body (2) screwed hole (5) threaded engagement that top disc is vertically offered connects.
Spherical strong rammer the most according to claim 4 is hammered into shape, it is characterised in that described hammer body (2) and described hemispherical tup (7) Diameter than for 1:0.4-0.6.
Spherical strong rammer the most according to claim 1 is hammered into shape, it is characterised in that described hammer body (2) bottom is set to circular flat horizontal surface (8), the diameter of the diameter of described hammer body (2) and described circular flat horizontal surface (8) ratio is for 1:0.1-0.2.
Spherical strong rammer the most according to claim 1 is hammered into shape, it is characterised in that with described hammer body (2) bottom sphere centre for rising Point, is provided with, on the hemisphere face of described hammer body (2) bottom, the air discharge duct (9) being interconnected.
Spherical strong rammer the most according to claim 7 is hammered into shape, it is characterised in that described air discharge duct (9) is rectangular channel, and its width is 1-10mm, the degree of depth is 0.5-2mm.
Spherical strong rammer the most according to claim 1 is hammered into shape, it is characterised in that with the central shaft of described hammer body (2) as the center of circle, Annular protrusion (10) it is provided with on the bottom sphere of described hammer body (2).
10. the application in stiffening basic ground of the spherical strong rammer hammer as described in any one of claim 1-9.
CN201610876099.0A 2016-10-08 2016-10-08 A kind of spherical strong rammer hammer Pending CN106284287A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107843743A (en) * 2017-09-27 2018-03-27 上海申元岩土工程有限公司 A kind of dynamic consolidation construction collecting method based on impact acceleration
CN112359814A (en) * 2020-11-04 2021-02-12 中信国安建工集团有限公司 Collapsible loess roadbed construction filling compaction equipment and method
CN112376541A (en) * 2020-11-04 2021-02-19 中信国安建工集团有限公司 Vibratory compaction device and vibratory compaction method for backfill area

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KR20100018973A (en) * 2008-08-08 2010-02-18 백승훈 Dynamic compaction system with compaction plate
CN201395789Y (en) * 2009-04-27 2010-02-03 山西省机械施工公司 Mass-adjustable special-shaped replaceable rammer
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CN202787222U (en) * 2012-08-16 2013-03-13 山西省电力公司 Deep stratum reinforcement rammer
CN204456057U (en) * 2015-02-09 2015-07-08 海安县恒益滑动轴承有限公司 A kind of multistage rammer for installing cables groove
RU170995U1 (en) * 2016-12-06 2017-05-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" Rammed foundation

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107843743A (en) * 2017-09-27 2018-03-27 上海申元岩土工程有限公司 A kind of dynamic consolidation construction collecting method based on impact acceleration
CN112359814A (en) * 2020-11-04 2021-02-12 中信国安建工集团有限公司 Collapsible loess roadbed construction filling compaction equipment and method
CN112376541A (en) * 2020-11-04 2021-02-19 中信国安建工集团有限公司 Vibratory compaction device and vibratory compaction method for backfill area

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Application publication date: 20170104