CN114808913B - Dynamic compaction mechanical rapid energy level changing mechanism and construction method thereof - Google Patents
Dynamic compaction mechanical rapid energy level changing mechanism and construction method thereof Download PDFInfo
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- CN114808913B CN114808913B CN202210379820.0A CN202210379820A CN114808913B CN 114808913 B CN114808913 B CN 114808913B CN 202210379820 A CN202210379820 A CN 202210379820A CN 114808913 B CN114808913 B CN 114808913B
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- 238000005056 compaction Methods 0.000 title claims abstract description 47
- 238000010276 construction Methods 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 230000008859 change Effects 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000003973 paint Substances 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract description 4
- 230000007306 turnover Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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- 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)
- Road Paving Machines (AREA)
Abstract
The invention discloses a quick energy level changing mechanism of a dynamic compaction machine and a construction method thereof, the mechanism comprises a pull rope and a connecting lug plate, the top end of the pull rope is fixedly connected with a unhooking device, the bottom end of the pull rope is fixed on the connecting lug plate through a first rope sleeve arranged at the tail end of a rope body, the lower section of the rope body is provided with a plurality of second rope sleeves according to the designed interval, the length of the rope body between the first rope sleeve and each second rope sleeve is matched with the difference value of the drop distance of a rammer corresponding to the energy level change of ramming energy, the connecting lug plate is fixedly arranged on a frame of the dynamic compaction machine, and the connecting lug plate is also provided with a rope fastener for hanging or releasing the second rope sleeves. The invention has simple structure, simple operation, strong practicability and low modification cost, can be used in a turnover way, can quickly adjust the drop distance of the rammer by arranging the second rope sleeve and the rope fastener, and only needs to perform the sleeving and picking of the second rope sleeve at the rope fastener when the ramming energy is adjusted, thereby greatly improving the stability and the safety of energy level conversion, ensuring the construction safety and achieving the purposes of reducing cost, improving quality and increasing efficiency.
Description
Technical Field
The invention relates to the technical field of dynamic compaction construction, in particular to a dynamic compaction mechanical rapid energy level changing mechanism and a construction method thereof.
Background
With the rapid development of the building industry, the situation that the soil condition is high-viscosity silty clay is inevitably encountered in the dynamic compaction replacement construction of foundation treatment, for the soil condition, the bearing capacity requirement of the foundation cannot be met by the conventional dynamic compaction replacement construction method, and the variable-energy-level dynamic compaction construction needs to be carried out at each dynamic compaction point to ensure the replacement pier body depth. If the energy level conversion is considered, the conventional dynamic compaction machine needs to calculate the steel wire ropes with different lengths according to the required tamping energy, and the steel wire ropes are fixed on the frame of the dynamic compaction machine by using iron wires in the construction process.
Disclosure of Invention
The invention aims to provide a quick energy level changing mechanism of a dynamic compaction machine and a construction method thereof, which aim to solve the technical problems in the background technology.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the utility model provides a quick variable energy level mechanism of dynamic compaction machinery which characterized in that: including stay cord and connection otic placode, the stay cord top links to each other with the detacher is fixed, and the first rope sling that its bottom set up through the rope body end is fixed on connecting the otic placode, and its rope body hypomere is provided with a plurality of second rope sling according to the design interval, and the rope body length between first rope sling and each second rope sling and the rammer that corresponding rammer ability level change corresponds fall apart from the difference value phase-match, it sets up in the dynamic compaction machine frame to connect the otic placode fixed, and still is provided with the cable loop that is used for articulating or releasing the second rope sling on connecting the otic placode.
Preferably, the first rope sling and the second rope sling are formed by folding partial rope bodies of the stay ropes in half, the head of the folded section of the rope bodies forms a lantern ring of the first rope sling or the second rope sling, and the neck of the folded section of the rope bodies is fixedly connected through a plurality of steel wire rope clamps arranged side by side.
Preferably, in order to avoid the rope sling from tripping, the first rope sling or the second rope sling is at least provided with four steel wire rope clamps.
Preferably, for the life of extension connection otic placode, prevent that the rope fastening is unexpected hooks the second fag end, the connection otic placode includes the first otic placode of being connected with first fag end and the second otic placode of being connected with the second fag end, and the correspondence of second otic placode sets up in the top of first otic placode.
Preferably, for the convenience second noose cup joint in the release, the cable loop is including the couple, the couple is fixed on connecting the otic placode through the shackle, and the opening part of its gib head has the bullet tongue of sealing through the torsional spring is articulated to prevent that the second noose is unexpected to unhook.
Preferably, in order to prevent the tail end of the pulling rope from tripping, an arched safety bend is arranged on the pulling rope between the two steel wire rope clamps arranged on the outermost side of the tail end of the first rope sleeve.
Preferably, in order to conveniently identify and distinguish the second rope sling corresponding to each tamping energy level, paint with different colors is respectively coated on the outer side of each second rope sling.
In addition, the invention also provides a construction method of the quick energy level changing mechanism of the dynamic compaction machine, which comprises the following steps:
firstly, determining the tamping energy level required by dynamic compaction construction and the tamping times corresponding to each tamping energy level according to a ground survey report provided by a survey unit and by combining a field trial compaction result;
step two, arranging a second rope sleeve at the corresponding position of the pull rope according to the tamping energy level determined in the step one, and arranging a rope buckle on the connecting lug plate;
thirdly, performing tamping construction according to the tamping energy level and the tamping times determined in the first step, and filling replacement materials into the tamping pits in time, wherein a second rope sleeve does not need to be sleeved at the rope fastener during construction of the maximum tamping energy level, and the second rope sleeve at the corresponding position needs to be sleeved on the rope fastener during construction of the other tamping energy levels;
and step four, after the dynamic compaction construction of the current point location is finished, moving the dynamic compaction machine to other point locations, and repeating the operation of the step three until the dynamic compaction construction of all the point locations is finished.
Compared with the prior art, the invention has the beneficial effects that: the invention has simple structure, simple operation, strong practicability and low modification cost, can be used repeatedly, can quickly adjust the drop distance of the rammer by arranging the second rope sling and the rope fastener, realizes the quick conversion of different ramming energy levels, effectively shortens the time difference introduced by the adjustment mode of calculating the length of the steel wire rope and binding iron wires in the construction process of the dynamic compaction machine, only needs to sleeve and pick the second rope sling at the rope fastener when adjusting the ramming energy, and ensures the stability and safety of energy level conversion, thereby achieving the purposes of reducing cost, improving quality and improving efficiency.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only, and not by way of limitation, and in which:
FIG. 1 is a schematic structural diagram of a dynamic compaction mechanical rapid energy level changing mechanism in an embodiment of the present invention at a compaction energy level corresponding to 7000KN · M;
FIG. 2 is a schematic structural diagram of a dynamic compaction mechanical rapid energy level changing mechanism at a compaction energy level corresponding to 6000 KN.M in an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a dynamic compaction mechanical rapid energy level changing mechanism at a compaction energy level corresponding to 5000 KN.M in an embodiment of the invention;
FIG. 4 is a schematic view of the structure of FIG. 1 at the location of the attachment ears;
FIG. 5 is a schematic view of the structure of FIG. 2 at the location of the attachment ears;
FIG. 6 is a schematic view of the structure of FIG. 3 at the location of the attachment ears;
FIG. 7 is a schematic structural diagram of a second rope socket of the dynamic compaction mechanical rapid energy level changing mechanism in the embodiment of the invention;
FIG. 8 is a schematic structural diagram of a shackle of a dynamic compaction mechanical rapid energy level change mechanism in an embodiment of the invention;
fig. 9 is a schematic structural diagram of a hook of a dynamic compaction mechanical rapid energy level changing mechanism in the embodiment of the invention.
Reference numerals: 1-a frame, 2-an arm support, 3-a lifting mechanism, 4-a lifting steel wire rope, 5-a detacher, 6-a rammer, 7-a pull rope, 8-a first rope sleeve, 9-a second rope sleeve, 10-a first lug plate, 11-a second lug plate, 12-a shackle, 13-a hook and 14-a steel wire rope clamp.
Detailed Description
Hereinafter, embodiments of a dynamic compaction mechanical rapid energy level changing mechanism and a construction method thereof according to the present invention will be described with reference to the accompanying drawings. The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other embodiments that are obvious based on the disclosure of the claims and the specification herein, including those that employ any obvious substitutions and modifications to the embodiments described herein.
In the description of the present invention, it should be noted that the terms "top", "bottom", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The drawings accompanying this specification are for the purpose of illustrating the concepts of the invention and are not necessarily to scale, the drawings being schematic representations of the shapes of the parts and their interrelationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention. Preferred embodiments of the present invention are described in further detail below with reference to FIGS. 1-9:
as shown in fig. 1-6, the present invention preferably relates to a dynamic compaction mechanical rapid energy level changing mechanism, which comprises a connecting ear plate and a pull rope 7, wherein the connecting ear plate comprises a first ear plate 10 and a second ear plate 11 which are welded and fixed on a dynamic compaction machine frame 1 from bottom to top, the pull rope 7 is made of 1 # 20 steel wire rope, has no burr, broken wire and broken strand, the top end thereof is fixedly connected with a unhooking device 5, the bottom end thereof is fixed on the first ear plate 10 through a first rope sleeve 8 arranged at the tail end of a rope body, the lower section of the rope body is provided with two second rope sleeves 9 according to a designed interval, the outer sides of the two second rope sleeves 9 are respectively coated with paints with different colors, and the length of the rope body between the first rope sling 8 and the two second rope slings 9 is matched with the drop distance difference value of the rammer 6 corresponding to the change of the ramming energy level, in the embodiment, the ramming energy level corresponding to the first rope sling 9 is 7000 KN.M, the drop distance of the rammer 6 is 21M, the outer side of the second rope sling 9 arranged below is coated with red paint, the corresponding ramming energy level is 6000 KN.M, the drop distance of the rammer 6 is 18M, the outer side of the second rope sling 9 arranged above is coated with green paint, the corresponding ramming energy level is 5000 KN.M, and the drop distance of the rammer 6 is 15M;
as shown in fig. 7, in order to prevent the rope sling from tripping, the first rope sling 8 and the second rope sling 9 are formed by folding a part of a rope body of a pull rope 7 in half, the head of the folded section of the rope body forms a loop of the first rope sling 8 or the second rope sling 9, the neck of the folded section of the rope body is fixedly connected with a plurality of steel wire rope clamps 14 arranged side by side, the steel wire rope clamps 14 adopt 20-size steel wire rope clamps 14, and the steel wire rope clamps 14 for equipment are arranged according to the number of 3+1 to ensure that the fixation is firm, wherein an arched safety bend is arranged on the pull rope 7 between the two steel wire rope clamps 14 arranged on the outermost side of the tail end of the first rope sling 8;
as shown in fig. 8-9, in order to facilitate the hooking or releasing of the second rope sling 9, the rope fastener includes a hook 13, the hook 13 is fixed on the second ear plate 11 through a shackle 12, and the opening of the hook head is hinged with a sealing spring tongue through a torsion spring.
In addition, the invention also provides a construction method of the quick energy level changing mechanism of the dynamic compaction machine, which comprises the following steps:
firstly, determining the tamping energy level required by dynamic compaction construction and the tamping times corresponding to each tamping energy level according to a ground survey report provided by a survey unit and by combining a field trial tamping result;
step two, arranging a second rope sleeve 9 at a position corresponding to the pull rope 7 according to the tamping energy level determined in the step one, and arranging a shackle 12 and a hook 13 on a second ear plate 11;
thirdly, performing ramming construction according to the ramming energy level and ramming frequency determined in the first step and filling replacement materials into the ramming pits in time, wherein a second rope sleeve 9 does not need to be sleeved at the rope fastener during the maximum ramming energy level corresponding to 7000 KN.M, the second rope sleeves 9 at corresponding positions need to be sequentially hung on the hook head of the hook 13 during the ramming energy level construction corresponding to 6000 KN.M and 5000 KN.M, during specific construction, the length of the pull rope 7 is adjusted and fixed according to the current ramming energy level, then the hook head at the bottom of the detacher 5 hooks the rammer 6, and the hoisting steel wire rope 4 is wound along the arm support 2 under the driving of the hoisting mechanism 3, when the rammer 6 is lifted to a preset height, the pull rope 7 is straightened, the detacher 5 is opened, the rammer 6 is lowered to a ramming point to tamp the foundation in a free-falling state, then the rammer 6 is lifted up again to repeatedly ram and timely fill, the timing of filling needs to be combined with the data feedback of field ramming, the predicted filling depth is subtracted according to the site elevation before each point is dynamically rammed, and a soil layer with the thickness of 200mm is reserved to prevent the rammer 6 from penetrating through a hard shell layer during dynamic ramming construction, when the ramming amount after each ramming is greater than the value, filling needs to be carried out, and when the ramming amount of the last two continuous strokes is less than or equal to 300mm and the accumulated forklift feeding reaches 20 shovels, the rammer can be stopped;
and step four, after the dynamic compaction construction of the current point location is finished, moving the dynamic compaction machine to other point locations, and repeating the operation of the step three until the dynamic compaction construction of all the point locations is finished.
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, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a quick variable energy level mechanism of dynamic compaction machinery which characterized in that: including stay cord (7) and connection otic placode, stay cord (7) top links to each other with detacher (5) is fixed, and first noose (8) that its bottom set up through the rope end are fixed on connecting the otic placode, and its rope hypomere is provided with a plurality of second noose (9) according to the design interval, and rope length between first noose (8) and each second noose (9) and corresponding rammer (6) that the rammer can the energy level change correspond fall apart from the difference phase-match, it sets up on strong rammer frame (1) to connect the otic placode is fixed, and still is provided with the rope fastening who is used for articulating or releasing second noose (9) on the connection otic placode.
2. The dynamic mechanical rapid energy level changing mechanism according to claim 1, characterized in that: first fag end (8) and second fag end (9) all form through local fag end fifty percent discount of stay cord (7), and the head of fag end fifty percent discount section forms the lantern ring of first fag end (8) or second fag end (9), and the neck of fag end fifty percent discount section links to each other fixedly through wire rope card (14) that a plurality of set up side by side.
3. The dynamic compaction mechanical rapid energy level changing mechanism according to claim 2, wherein: the first rope sling (8) or the second rope sling (9) is at least provided with four steel wire rope clamps (14).
4. The dynamic compaction mechanical rapid energy level changing mechanism according to claim 1, wherein: the connection ear plate comprises a first ear plate (10) connected with the first rope sling (8) and a second ear plate (11) connected with the second rope sling (9), and the second ear plate (11) is correspondingly arranged above the first ear plate (10).
5. The dynamic mechanical rapid energy level changing mechanism according to claim 1, characterized in that: the rope fastener comprises a hook (13), the hook (13) is fixed on the connecting lug plate through a shackle (12), and the opening of the hook head is hinged with a sealing spring tongue through a torsional spring.
6. The dynamic mechanical rapid energy level changing mechanism according to claim 3, characterized in that: an arched safety bend is arranged on the pull rope (7) between the two steel wire rope clamps (14) arranged on the outermost side of the tail end of the first rope sleeve (8).
7. The dynamic mechanical rapid energy level changing mechanism according to claim 1, characterized in that: the outer sides of the second rope sleeves (9) are respectively coated with paint with different colors.
8. A construction method for use in the construction process of a dynamic compaction mechanical rapid energy level changing mechanism as claimed in any one of claims 1 to 7, which is characterized by comprising the following steps:
firstly, determining the tamping energy level required by dynamic compaction construction and the tamping times corresponding to each tamping energy level according to a ground survey report provided by a survey unit and by combining a field trial tamping result;
step two, arranging a second rope sleeve (9) at a position corresponding to the pull rope (7) according to the tamping energy level determined in the step one, and arranging a rope buckle on the connecting lug plate;
thirdly, performing tamping construction according to the tamping energy level and the tamping times determined in the first step, and filling replacement materials into the tamping pits in time, wherein a second rope sleeve (9) does not need to be sleeved at the rope buckle during construction of the maximum tamping energy level, and the second rope sleeve (9) at the corresponding position needs to be sleeved on the rope buckle during construction of the rest tamping energy levels;
and step four, after the dynamic compaction construction of the current point location is finished, moving the dynamic compaction machine to other point locations, and repeating the operation of the step three until the dynamic compaction construction of all the point locations is finished.
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000144704A (en) * | 1998-11-13 | 2000-05-26 | Jdc Corp | Dynamic consolidation method and dynamic consolidation device |
CN202247839U (en) * | 2011-06-30 | 2012-05-30 | 江苏上骐集团有限公司 | Rammer unhooking dynamic compactor |
CN204454405U (en) * | 2015-02-10 | 2015-07-08 | 中化岩土工程股份有限公司 | Dynamic compaction machinery steel wire braking |
CN110775848A (en) * | 2019-11-12 | 2020-02-11 | 湖南博邦重工有限公司 | Winch and dynamic compaction machine |
CN110862039A (en) * | 2019-11-12 | 2020-03-06 | 湖南博邦重工有限公司 | Dynamic compaction machine control system |
CN111747332A (en) * | 2020-07-07 | 2020-10-09 | 辽宁抚挖重工机械股份有限公司 | Hydraulic pressure rammer double-winch device |
-
2022
- 2022-04-12 CN CN202210379820.0A patent/CN114808913B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000144704A (en) * | 1998-11-13 | 2000-05-26 | Jdc Corp | Dynamic consolidation method and dynamic consolidation device |
CN202247839U (en) * | 2011-06-30 | 2012-05-30 | 江苏上骐集团有限公司 | Rammer unhooking dynamic compactor |
CN204454405U (en) * | 2015-02-10 | 2015-07-08 | 中化岩土工程股份有限公司 | Dynamic compaction machinery steel wire braking |
CN110775848A (en) * | 2019-11-12 | 2020-02-11 | 湖南博邦重工有限公司 | Winch and dynamic compaction machine |
CN110862039A (en) * | 2019-11-12 | 2020-03-06 | 湖南博邦重工有限公司 | Dynamic compaction machine control system |
CN111747332A (en) * | 2020-07-07 | 2020-10-09 | 辽宁抚挖重工机械股份有限公司 | Hydraulic pressure rammer double-winch device |
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