CN108951739B - Method for pulling out cutting body of chain saw box of ditch type cement soil wall cutting equipment after being buried - Google Patents
Method for pulling out cutting body of chain saw box of ditch type cement soil wall cutting equipment after being buried Download PDFInfo
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- CN108951739B CN108951739B CN201810739042.5A CN201810739042A CN108951739B CN 108951739 B CN108951739 B CN 108951739B CN 201810739042 A CN201810739042 A CN 201810739042A CN 108951739 B CN108951739 B CN 108951739B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
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Abstract
The invention discloses a method for pulling a chain saw box cutting body of a channel type cement soil wall cutting device after being buried, and aims to provide a method for pulling a chain saw box cutting body buried in cement soil after being buried, which can smoothly lift and salvage the chain saw box cutting body to the ground. It comprises the following steps in sequence: firstly, after a chain saw box cutting body is buried, a cutter chain is kept to rotate once after every set time t1 hours; secondly, at least one cutting tool row on the tool chain above the ground surface is disassembled within the time when the tool chain stops rotating, and then the disassembled cutting tool row is reversely installed on the tool chain, so that a cracking device is formed on the tool chain; thirdly, the channel type cement soil wall cutting equipment drives the cutter chain to rotate for at least one circle; fourthly, lengthening the connecting cutter bar; and fifthly, returning to the third step, and completely or partially separating the chain saw box cutting body from the cement soil.
Description
Technical Field
The invention relates to the field of trench cutting cement soil walls, in particular to a pulling method for a chain saw box cutting body of trench cutting cement soil wall equipment after the chain saw box cutting body is buried.
Background
The construction field adopts a channel type cutting cement soil continuous wall (TRD), which is an advanced technology for retaining soil and stopping water in an underground space of a building and performing enclosure construction on the underground space. The ditch type cement-soil wall cutting equipment comprises a host and a chain saw box cutting body, wherein the chain saw box cutting body comprises a cutter stand column, a cutter chain arranged on the cutter stand column and a detachable cutting knife row arranged on the cutter chain. The cutter upright column is composed of a plurality of chain saw boxes which are sequentially connected from top to bottom, and two adjacent chain saw boxes are connected through bolts. The cutter chain is an annular chain and surrounds the chain saw box cutting body, and passes through the chain wheels at the top and the bottom of the cutter upright post, the main machine drives the chain wheel at the top of the cutter upright post to rotate, and further drives the cutter chain to rotate in the forward direction or the reverse direction, so that the soil body cutting and stirring effects are achieved.
Cutting the chain saw box cutting body to a designed and appointed stratum in the vertical direction, then transversely cutting foundation soil, and injecting cement paste or other curing liquid to form a continuous cement soil water stop wall body with the same thickness (finishing enclosing and blocking underground water on the side surface); after the wall body is inserted into the section steel or other hard metal rod pieces, the cement-soil underground continuous wall can stop water and retain soil.
When the channel type cutting cement soil continuous wall is constructed in a sand-gravel layer, the sand-gravel layer in the stratum is loose and is often positioned below the top interface of underground water, and the stratum is a high-water-content stratum, so that the collapse of the sand-gravel layer is often generated in the construction, and the fault of a chain saw box cutting body is buried. For example, during construction, if a well-defined amount of bentonite is not incorporated into the cut formation or slurry interruption occurs during the agitation of the water-jet slurry, collapse of the gravel bed of sand and gravel can easily occur, burying the chain saw box cutters.
When the length of the chain saw box cutting body reaches dozens of meters, even under the condition that the longest chain saw box cutting body reaches 60 meters at present, the chain saw box cutting body is buried in a sand gravel layer, and the chain saw box cutting body is very difficult to pull up; especially, in the process of spraying cement slurry, collapse occurs, after the chain saw box is buried, the strength of the cement soil is enhanced along with the time, the adhesion between the cement soil and the chain saw box is enhanced, even if a hundreds of tons of hydraulic jacks are matched with a large-tonnage crawler crane, the chain saw box cutting body cannot be pulled out, and as a result, the loss of millions of elements is caused, and measures are needed to be taken to remedy the area.
Disclosure of Invention
The invention aims to provide a pulling method for a chain saw box cutting body of a ditch type cement wall cutting device which can smoothly lift and salvage the chain saw box cutting body buried in cement soil to the ground after the chain saw box cutting body is buried.
The technical scheme of the invention is as follows:
the utility model provides a draw method after chain saw case cutting member is buried of ditch formula cutting cement soil wall equipment, chain saw case cutting member includes the cutter stand, install cutter chain on the cutter stand and the detachable cutting tool row that sets up on the cutter chain, the cutting tool row includes sword row bottom plate, two at least tool bits and with the tool bit one-to-one connect the tool bit with the connection cutter arbor of sword row bottom plate, draw method after the chain saw case cutting member of ditch formula cutting cement soil wall equipment is buried includes the following step in proper order:
firstly, after a cutting body of a chain saw box is buried, the cutter chain is kept to rotate once every set time t1 hours, and the cutter chain is prevented from being solidified by cement soil;
the second, in cutter chain stall time, will be located at least one cutting knife row dismantlement on the cutter chain of earth's surface top, then, on the cutter chain was installed in the cutting knife row reversal that will dismantle to form on the cutter chain and explain the device, form and explain the cutting knife row of device: the cutter head, the connecting cutter bars and the cutter chain are positioned on the same side of the cutter row bottom plate, and the cutter upright post is positioned between any two adjacent connecting cutter bars;
thirdly, the ditch type cement wall cutting equipment drives the cutter chain to rotate for at least one circle, and the cutter chain drives the cracking device to synchronously rotate around the chain saw box cutting body to cut the cement soil, so that an annular groove is formed between the chain saw box cutting body and the cement soil;
fourthly, cutting off the cutter head on the connecting cutter bar in the cutter row of the cracking device, lengthening the connecting cutter bar, and welding a section of lengthened cutter bar at the end part of the connecting cutter bar to form a new connecting cutter bar; then, welding the cut cutter head to the end part of a new connecting cutter rod;
and fifthly, returning to the third step, and completely or partially separating the chain saw box cutting body from the cement soil or the soil layer.
According to the pulling method for the buried chain saw box cutting body of the channel type cement wall cutting equipment, the chain saw box cutting body is completely or partially separated from the cement soil or the soil layer, so that the chain saw box cutting body buried in the cement soil or the soil layer is smoothly lifted and salvaged to the ground, and the economic loss caused by the fact that the chain saw box cutting body is buried in the cement soil or the soil layer is avoided.
Preferably, the method further comprises the following steps: sixth, the chainsaw case cutting body is hoisted by a crane.
Preferably, in the sixth step, the chain saw box cutting body is lifted by the crane at one time.
Preferably, the tool upright column is composed of a plurality of chain saw cases which are sequentially connected from top to bottom, two adjacent chain saw cases are connected through bolts, and in the sixth step, when the crane lifts the chain saw case cutting body in an intermittent lifting mode, the intermittent lifting mode is as follows: when one of the chain saw boxes is lifted out of the ground, the crane stops working, then the chain saw box lifted out of the ground is disassembled, and the disassembled chain saw box is moved away by the crane; this is repeated until the entire chainsaw case cutting body is lifted out of the ground.
This scheme is favorable to promoting the chain saw case cutting body out of ground.
Preferably, the length of the lengthened cutter rod is less than or equal to 10 cm.
The invention has the beneficial effects that: the chain saw box cutting body buried in the cement soil or the soil layer can be smoothly lifted and salvaged to the ground, and the economic loss caused by the fact that the chain saw box cutting body is buried in the cement soil or the soil layer is avoided.
Drawings
Fig. 1 is a schematic structural view of a chain saw case cutter of the trench type cement wall cutting apparatus of the present invention in an actual construction process.
Fig. 2 is a schematic cross-sectional view taken along line a-a in fig. 1.
Fig. 3 is a schematic sectional view of a chainsaw case cutter in an actual construction process according to a method for pulling up a chainsaw case cutter of a trench type cement wall cutting apparatus of the present invention after the chainsaw case cutter is buried.
Fig. 4 is a second sectional view schematically showing the structure of the chainsaw case cutter in the actual construction process according to the pulling-up method of the chainsaw case cutter of the trench type cement wall cutting apparatus of the present invention after being buried.
Fig. 5 is a third sectional view schematically showing the structure of the chainsaw case cutter in the actual construction process of the pulling-up method after the chainsaw case cutter of the trench type cement wall cutting apparatus of the present invention is buried.
In the figure:
chainsaw case cutter 1:
a cutter column 1.1 and a chain saw box 1.11;
a cutter chain 1.2;
1.3 of a cutting tool row, 1.31 of a tool row bottom plate, 1.32 of a tool bit, 1.33 of a connecting tool bar and 1.331 of a lengthened tool bar;
the cracking device 2.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
as shown in fig. 1, a method for pulling up a chain saw case cutting body of a trench type cement wall cutting apparatus, which includes a main body and a chain saw case cutting body 1, is buried. The channel type cement soil wall cutting equipment belongs to the prior art. The chain saw case cutting body includes cutter stand 1.1, install cutter chain 1.2 and the detachable cutting knife row 1.3 that sets up on the cutter chain on the cutter stand. The cutter chain is an endless chain that runs around the cutting body of the chain saw box and over the sprockets at the top and bottom of the cutter post. The main machine drives the chain wheel at the top of the cutter upright post to rotate, and further drives the cutter chain to rotate in the forward direction or the reverse direction, so that the soil body cutting and stirring effects are achieved.
As shown in fig. 1 and 2, the cutter post is composed of a plurality of chain saw cases 1.11 connected in sequence from top to bottom, and two adjacent chain saw cases are connected by bolts. The cutting knife row comprises a knife row bottom plate 1.31, at least two knife heads 1.32 and connecting knife rods 1.33 which correspond to the knife heads one by one and are connected with the knife heads and the knife row bottom plate. The cutting knife row is installed on the knife chain through the knife row bottom plate and connected with the knife chain through bolts. In this embodiment, two cutter heads are provided for the same cutting blade row.
As shown in fig. 1 and 2, during normal operation of the chainsaw case cutter: the cutter head and the connecting cutter bar and the cutter chain are positioned on two opposite sides of the cutter row bottom plate.
The pulling method of the buried chain saw box cutting body of the ditch type cement soil wall cutting equipment sequentially comprises the following steps:
first, after the chain saw case cutting body is buried, the cutter chain is held to rotate once every set time t1 hours, and the cutter chain is prevented from being solidified by the soil cement, and in the present embodiment, the set time t1 hours takes a value of 2 hours. The cutter chain is driven to rotate by the main machine.
Secondly, at least one cutting tool row on the tool chain above the ground surface is disassembled within the time when the tool chain stops rotating;
next, as shown in fig. 3, the disassembled cutting knife row is reversely mounted on the knife chain, so that the cracking device 2 is formed on the knife chain, and in the cutting knife row 1.3 of the cracking device: the cutter head, the connecting cutter bars and the cutter chain are positioned on the same side of the cutter row bottom plate, and the cutter upright post 1.1 is positioned between any two adjacent connecting cutter bars 1.33. In this embodiment, the tool post is located between the two connecting tool bars.
Thirdly, the trench type cement wall cutting equipment drives the cutter chain to rotate for one circle or more, the cutter chain drives the cracking device to synchronously rotate around the chain saw box cutting body to cut the cement soil, and therefore an annular groove is formed between the chain saw box cutting body and the cement soil.
Fourthly, as shown in fig. 4, the cutter head on the connecting cutter bar in the cutter row of the cracking device is cut off, and then the connecting cutter bar is lengthened, namely a section of lengthened cutter bar 1.331 is welded at the end part of the connecting cutter bar to form a new connecting cutter bar 1.33; the cut-off cutting head is then welded to the end of a new connecting cutter bar.
The length of the lengthening cutter bar is less than or equal to 10 cm, and in this embodiment, the length of the lengthening cutter bar is equal to 10 cm.
And fifthly, returning to the third step, and circulating in such a way until the chain saw box cutting body is completely or partially separated from the cemented soil or soil layer. As shown in fig. 5, when the length of the new connecting cutter bar is greater than or equal to 50% of the width D of the chain saw box, the trench type cement wall cutting device drives the cutter chain to rotate for one or more circles, and the cutter chain drives the cracking device to synchronously rotate around the chain saw box cutting body to cut the cement, so that the chain saw box cutting body can be completely separated from the cement or soil layer.
Sixth, the chainsaw case cutting body is hoisted by a crane. The main machine is separated from the chainsaw case cutter before the chainsaw case cutter is lifted by the crane.
In the sixth step, the chain saw box cutting body is lifted by the crane in the following two ways:
in the first mode, the chain saw box cutting body is hoisted by the crane at one time.
And in the second mode, when the crane lifts the chain saw box cutting body in an intermittent lifting mode, the intermittent lifting mode is as follows: when one of the chain saw boxes is lifted out of the ground, the crane stops working, then the chain saw box lifted out of the ground is disassembled, and the disassembled chain saw box is moved away by the crane; this is repeated until the entire chainsaw case cutting body is lifted out of the ground.
According to the pulling method for the buried chain saw box cutting body of the ditch type cement wall cutting equipment, the cutting tool row of the equipment is reversely mounted on the tool chain, so that a cracking device is formed on the tool chain; then, the cracking device is driven to rotate by the cutter chain, so that the chain saw box cutting body is gradually separated from the cement soil or the soil layer, and after the chain saw box cutting body is completely separated from the cement soil or the soil layer, the chain saw box cutting body buried in the cement soil can be smoothly lifted and salvaged to the ground, and the economic loss caused by the fact that the chain saw box cutting body is buried in the cement soil or the soil layer is avoided.
Claims (4)
1. The utility model provides a method of pulling out after chain saw case cutting element is buried of ditch formula cutting cement soil wall equipment, chain saw case cutting element includes the cutter stand, installs cutter chain and the detachable cutting tool row that sets up on the cutter chain on the cutter stand, and the cutting tool row includes sword row bottom plate, two at least tool bits and with the tool bit one-to-one connect the cutter arbor of being connected tool bit and sword row bottom plate, characterized by includes following step in proper order:
firstly, after a cutting body of a chain saw box is buried, the cutter chain is kept to rotate once every set time t1 hours, and the cutter chain is prevented from being solidified by cement soil;
the second, in cutter chain stall time, will be located at least one cutting knife row dismantlement on the cutter chain of earth's surface top, then, on the cutter chain was installed in the cutting knife row reversal that will dismantle to form on the cutter chain and explain the device, form and explain the cutting knife row of device: the cutter head, the connecting cutter bars and the cutter chain are positioned on the same side of the cutter row bottom plate, and the cutter upright post is positioned between any two adjacent connecting cutter bars;
thirdly, the ditch type cement wall cutting equipment drives the cutter chain to rotate for at least one circle, and the cutter chain drives the cracking device to synchronously rotate around the chain saw box cutting body to cut the cement soil, so that an annular groove is formed between the chain saw box cutting body and the cement soil;
fourthly, cutting off the cutter head on the connecting cutter bar in the cutter row of the cracking device, lengthening the connecting cutter bar, and welding a section of lengthened cutter bar at the end part of the connecting cutter bar to form a new connecting cutter bar; then, welding the cut cutter head to the end part of a new connecting cutter rod;
fifthly, returning to the third step, and completely or partially separating the chain saw box cutting body from the cement soil;
sixth, the chainsaw case cutting body is hoisted by a crane.
2. The method for pulling up a chainsaw box cutting body of a trench type cement wall cutting apparatus according to claim 1, wherein in the sixth step, the chainsaw box cutting body is lifted up by a crane at one time.
3. The method for pulling up the cutting body of the chain saw case of the apparatus for cutting a cement wall in a trench according to claim 1, wherein the cutter post is composed of a plurality of chain saw cases connected in sequence from top to bottom, adjacent two chain saw cases are connected by bolts,
in the sixth step, when the crane lifts the chain saw box cutting body in an intermittent lifting mode, the intermittent lifting mode is as follows: when one of the chain saw boxes is lifted out of the ground, the crane stops working, then the chain saw box lifted out of the ground is disassembled, and the disassembled chain saw box is moved away by the crane; this is repeated until the entire chainsaw case cutting body is lifted out of the ground.
4. The method for pulling up a cutting body of a chain saw box of a trench type cement wall cutting apparatus according to claim 1, wherein the length of the extension blade is 10 cm or less.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810739042.5A CN108951739B (en) | 2018-07-06 | 2018-07-06 | Method for pulling out cutting body of chain saw box of ditch type cement soil wall cutting equipment after being buried |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810739042.5A CN108951739B (en) | 2018-07-06 | 2018-07-06 | Method for pulling out cutting body of chain saw box of ditch type cement soil wall cutting equipment after being buried |
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| CN108951739A CN108951739A (en) | 2018-12-07 |
| CN108951739B true CN108951739B (en) | 2020-06-05 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07217359A (en) * | 1994-01-31 | 1995-08-15 | Asahi Chem Ind Co Ltd | Mud scraper |
| JPH09125451A (en) * | 1995-11-01 | 1997-05-13 | Ohbayashi Corp | Excavation and agitation of ground |
| CN101285313A (en) * | 2008-05-26 | 2008-10-15 | 武汉京冶地基基础工程有限责任公司 | Refloatation method for underground diaphragm wall device |
| CN105113976B (en) * | 2015-07-21 | 2017-10-03 | 河南省公路工程局集团有限公司 | Wire brush bit convolution rig and solve burying, fall bore, the method for bit freezing |
| CN108035392A (en) * | 2017-12-05 | 2018-05-15 | 浙江吉通地空建筑科技有限公司 | The chain saw of canal formula cutting cement soil continuous wall cutting equipment falls stop device |
| CN108071128A (en) * | 2018-01-10 | 2018-05-25 | 上海智平基础工程有限公司 | A kind of chain saw type cutting box and its application in ultra-deep TRD engineering methods |
-
2018
- 2018-07-06 CN CN201810739042.5A patent/CN108951739B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07217359A (en) * | 1994-01-31 | 1995-08-15 | Asahi Chem Ind Co Ltd | Mud scraper |
| JPH09125451A (en) * | 1995-11-01 | 1997-05-13 | Ohbayashi Corp | Excavation and agitation of ground |
| CN101285313A (en) * | 2008-05-26 | 2008-10-15 | 武汉京冶地基基础工程有限责任公司 | Refloatation method for underground diaphragm wall device |
| CN105113976B (en) * | 2015-07-21 | 2017-10-03 | 河南省公路工程局集团有限公司 | Wire brush bit convolution rig and solve burying, fall bore, the method for bit freezing |
| CN108035392A (en) * | 2017-12-05 | 2018-05-15 | 浙江吉通地空建筑科技有限公司 | The chain saw of canal formula cutting cement soil continuous wall cutting equipment falls stop device |
| CN108071128A (en) * | 2018-01-10 | 2018-05-25 | 上海智平基础工程有限公司 | A kind of chain saw type cutting box and its application in ultra-deep TRD engineering methods |
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