CN106149679A - The construction technology of diaphram wall built by slotter - Google Patents
The construction technology of diaphram wall built by slotter Download PDFInfo
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- CN106149679A CN106149679A CN201510129635.6A CN201510129635A CN106149679A CN 106149679 A CN106149679 A CN 106149679A CN 201510129635 A CN201510129635 A CN 201510129635A CN 106149679 A CN106149679 A CN 106149679A
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Abstract
The invention discloses a kind of slotter and build the construction technology of diaphram wall, comprise the following steps: utilize crane lifting two-wheel flute milling machine to construct phase groove main aperture and a secondary orifices, in hole under first it is positioned when entering a phase groove steel reinforcement cage；The adapter plate between notch and cell wall and pvc pipe is utilized to position.Fluted disc is provided with inclined head tooth, it is possible to cut to the carinate soil formed bottom box cut between two cutting wheels.The present invention utilizes hydraulic pressure two-wheel flute milling machine as special construction of diaphragm wall equipment, there is the advantages such as efficiency height, safety and environmental protection, adaptation stratum geology scope are wide, milling mechanism can stablize lasting feeding work, until whole hole grooving, overall process will not produce bigger impact and vibrations, greatly reduces operation labor intensity.
Description
Technical field
The present invention relates to water conservancy construction technical field, be specifically related to a kind of slotter and build the construction technology of diaphram wall.
Background technology
Diaphragm Wall is a kind of basic engineering construction new technique, it is widely used in all kinds of underground structure, due to the engineering geology of ground and hydrogeologic condition, the function of building, the difference of technical performance of construction machinery, diaphram wall excute a law and plant equipment used is also different.According to construction of diaphragm wall process for many years and effect situation, original construction (kerf method, hydraulic grab, vibroflotation etc.) is only suitable for common hydraulic engineering, is extremely difficult to engineering design requirements in south water to north Engineering Through the Yellow River.
South water to north Engineering Through the Yellow River south bank vertical shaft platform and vertical shaft diaphragm wall engineering, south bank vertical shaft is the intermediate wells wearing yellow shield, it is positioned in Yellow River Main river course, need first filling construction platform after manually retaining and changing its course, then carry out the construction operation of vertical shaft, vertical shaft diaphram wall thickness 1.2m, deep 60.6m, footpath 15m within the walls, external diameter is 17.4m, and its wall degree of depth is the most rare.Vertical shaft top is artificial earth fill, fine sand and sand gravel layer.Vertical shaft middle and lower part is Q2Stratum, lithology is that silt loam asks distribution mutually with paleosol layer, presss from both sides substantial amounts of calcareous concretion.Silt loam and paleosol layer are all in hard plastic shape, and intensity is higher, have micro-～weak water penetration, and engineering geological condition is preferable, but the calcareous concretion of a large amount of distribution can produce harmful effect to construction of diaphragm wall.Silo bottom is Q2With N stratum, Q2Pressed from both sides substantial amounts of calcareous concretion by silt loam and paleosol layer to form；N is mainly clay rock and dauk rock, and above-mentioned formation strength is higher.
Summary of the invention
In order to ensure the smooth construction of vertical shaft during large-scale water conservancy construction, the present invention provides a kind of and takes horizontal multiaxis slewing drilling machine to creep into engineering method to carry out the construction technology of vertical shaft diaphragm wall.
For achieving the above object, adopt the following technical scheme that the construction technology of diaphram wall built by a kind of slotter, comprise the following steps: (1) utilizes crane lifting to grab bucket to ground plane apertures；(2) crane lifting two-wheel flute milling machine two phase groove main apertures separately of construction are utilized；(3) utilizing crane lifting two-wheel flute milling machine to construct a phase groove secondary orifices, this phase groove secondary orifices is between two phase groove main apertures；(4) a phase groove steel reinforcement cage is entered under in a described phase groove main aperture and secondary orifices；(5) utilize pvc pipe that steel reinforcement cage is positioned at phase groove steel reinforcement cage two ends；(6) adapter plate is entered down between notch and the cell wall before a phase groove pours；(7) casting concrete in a phase groove；(8) crane lifting two-wheel flute milling machine construction second phase slotted eye is utilized；(9) second phase groove steel reinforcement cage is entered under in second phase slotted eye；(10) casting concrete in second phase groove.
Described two-wheel flute milling machine includes frame, motor and groove milling wheel, and motor end output shaft is connected by drive mechanism and two symmetrical groove milling wheel rotating shafts respectively, and two groove milling wheels reversely rotate；The power end being provided with slush pump, slush pump and motor in frame is connected with external power supply by cable, and the stock inlet of slush pump is arranged on the upside of two groove milling wheel centers.Being configured with mud circulating system with described two-wheel flute milling machine, the mud comb of the slush pump arranged in two-wheel flute milling machine connects with slurry tank by after desanding device, arranges outlet and connected by slurry supply pump and a phase slotted eye or second phase slotted eye bottom slurry tank；Being arranged above mending slurry pipe at described slurry tank, mend slurry pipe and tonified the slurry pump outlet, tonified the slurry pump entrance and slurry mixer outlet, slurry mixer entrance connects bottom bentonite storage vat, is provided with water pipeline on the upside of slurry mixer.The outer disk installed in groove milling wheel rotating shaft is connected with fluted disc by amortisseur.Being provided with fixing tooth on fluted disc, be additionally provided with inclined head tooth simultaneously, the root of this inclined head tooth is hinged on fluted disc side, and arranges busy inclined head tooth and can deflect and the mechanical guiding device of return, produces deflection when inclined head tooth is positioned at work surface region.Described desanding device includes sandbox, and sandbox is tilted is provided with filter screen, the upside of the filter screen low side Qing Xieing is provided with sand removing hole, connects with slurry tank bottom sandbox.
Described adapter plate is a kind of wedge structure containing adjustment inclined-plane, and its upper port both sides are respectively arranged with the triangle fixing steel plate containing hypotenuse；In the wider side of adapter plate at least provided with two parallel triangle location-plates；Described each triangle location-plate is parallel with adapter plate respectively.
The present invention utilizes hydraulic pressure two-wheel flute milling machine as special construction of diaphragm wall equipment, to have the advantages such as trenching construction efficiency high (high 2～3 times than grab bucket method), hole shape rule (wall body vertical degree can be controlled in less than 3 ‰), safety and environmental protection, adaptation stratum geology scope are wide, this engineering method main innovation point is as follows:
1, the wide accommodation to stratum, can meet the one-tenth slot milling of Different Strata by the milling cutter wheel and mill teeth changing multi-form.
2, efficiency of construction is high, exceeds several times, especially in intensity relatively than traditional grooving construction device efficiency such as grab bucket, impact cycle rigs: ground consisting of hard rock advantage too is the most prominent, becomes groove depth maximum up to 80m, and width can regulate within 1.5m.
3, grooving precision is high, pass rule, and milling wheel is during lasting climb milling, its Cutting trajectory computer display screen tracing display by operating system, the inclination produced or skew utilize X, Y-direction correction plate correct at any time, and its precision controlling is 3 ‰, thus ensures the perpendicularity of groove section.
4, milling wheel cutting slag charge and mud by being arranged on the dredge pump on milling wheel frame and Pipeline transport to mud shaker subsystem, mud after screening repeats again to be back in cutting slot section, forms the most airtight mud circulating system, at high speed, low noise, is particularly suited for urban environment operation.
5, the milling direction of carriage arbor can be adjusted, both can parallel also can vertically main frame operation, construction operation scope is had certain suitability, and is more beneficial for the milling of corner slots section.
6, milling mechanism can stablize lasting feeding work, until whole hole grooving, overall process will not produce bigger impact and vibrations, greatly reduces operation labor intensity.
7, ask, in order to ensure continuous wall groove segment, the overlap joint quality that milling joint connects, have developed special adapter plate and pvc pipe positioner, engineering construction has obtained successful Application.
Applicable cases in practice, slotter construction diaphram wall engineering method has obtained successful Application in the bank Construction of Silo of Engineering Through the Yellow River south, has built together and make diaphragm wall 110m, casting concrete 10100m.According to normal construction speed, one phase a length of 6.69m, degree of depth 60.6m, the diaphragm wall of wide 1.2m, complete in 12 hours can reach grooving requirement, bigger superiority is shown in terms of efficiency of construction and safety and environmental protection, showing according to later stage shaft excavation site inspection situation, the construction of diaphragm wall has reached design requirement.The present invention is building the application in this engineering of the diaphram wall engineering method, more traditional about 4 months engineering method reduction of erection time, saves fund more than 650,000 yuan.Shown by engineering actual analysis, the present invention relative to miscellaneous equipment can more convenient, quick, guarantee both quality and quantity complete construction requirement.
Accompanying drawing explanation
Fig. 1 is construction technology schematic diagram of the present invention；
Fig. 2 is mud circulating system schematic diagram；
Fig. 3 is the partial enlarged drawing of Fig. 2；
Fig. 4 is the partial enlarged drawing of Fig. 3；
Fig. 5 is the side view of Fig. 4；
Fig. 6 is desanding device schematic diagram in Fig. 2；
Fig. 7 is that steel reinforcement cage positions schematic diagram；
Fig. 8 is landing nipple plate schematic diagram；
Fig. 9 is the end view of Fig. 8；
Figure 10 is the side schematic view of Fig. 8.
In figure, label 1 is crane, and 2 is two-wheel flute milling machine, 3 is desanding device, and 4 is slurry tank, and 5 is slurry supply pump, 6 is the boring mud screened out, and 7 is tonified the slurry pump, and 8 is slurry mixer, 9 is bentonite storage vat, and 10 is water pipeline, and 11 is steel reinforcement cage, 12 is pvc pipe, and 13 is adapter plate, and 14 is triangle fixing steel plate, 15 is a phase groove main aperture, and 16 is a phase groove secondary orifices, and 17 is grab bucket.21 is frame, and 22 is motor, and 23 take turns for groove milling, and 24 is slush pump, and 25 is stock inlet, and 26 is mud comb, and 27 is cable, and 28 is breaker plates.31 is sandbox, and 32 is filter screen, and 33 is sand removing hole, and 34 is plasma discharge mouth.231 is rotating shaft, and 232 is amortisseur, and 233 is fixing tooth, and 234 is inclined head tooth.
Detailed description of the invention
Embodiment: the construction technology utilizing slotter to build diaphram wall sees Fig. 1-Figure 10, (1) utilizes crane 1 lifting grab bucket to ground plane apertures；(2) utilize crane 1 to lift two-wheel flute milling machine 2 to construct two phase groove main apertures separately；(3) utilizing crane 1 to lift two-wheel flute milling machine 2 to construct a phase groove secondary orifices, this phase groove secondary orifices is between two phase groove main apertures；(4) a phase groove steel reinforcement cage is entered under in a described phase groove main aperture and secondary orifices；(5) utilize pvc pipe 12 that steel reinforcement cage is positioned at phase groove steel reinforcement cage two ends；(6) adapter plate 13 is entered down between notch and the cell wall before a phase groove pours；(7) casting concrete in a phase groove；(8) utilize crane 1 lift two-wheel flute milling machine 2 construct second phase slotted eye；(9) second phase groove steel reinforcement cage is entered under in second phase slotted eye；(10) casting concrete in second phase groove.
Hydraulic pressure two-wheel flute milling machine 2 is to stratum strong adaptability, mud, sand, gravel, cobble, sand are delayed, limestone all can digging, such as Fig. 4, two-wheel flute milling machine 2 includes frame, motor and groove milling wheel, motor end output shaft is connected by drive mechanism and two symmetrical groove milling wheel rotating shafts respectively, and two groove milling wheels reversely rotate；The power end being provided with slush pump, slush pump and motor in frame is connected with external power supply by cable, and the stock inlet of slush pump is arranged on the upside of two groove milling wheel centers, is respectively arranged with breaker plates on the upside of each groove milling wheel, and groove milling efficiency is high.The roller milling cutter that adapted is special also can creep into the solid rock that comprcssive strength is about 200Mpa, utilize electronics deviational survey reverse circulation drill bit device and guide regulation system, angle adjustable drum rotation milling device to ensure grooving precision, precision may be up to 1 ‰-2 ‰.The outer disk installed in groove milling wheel rotating shaft is connected with fluted disc, substantially without earth shock during trenching construction by amortisseur.
Along with cutting depth increases, in groove, successively supply fresh mud, it is ensured that mud liquid level, technology the to be met requirement of every mud index, make mud play good retaining wall effect, prevent landslip of the sides of the trench, beneficially the discharge of boring mud.Run into attached containing calcareous binder course and slate layer time, slow down Milling Speed, prevent from producing bigger deflection because milling is uneven.When close to bottom land, also should slow down Milling Speed, carefully measure groove depth, prevent from backbreaking and owe to dig.Fig. 2 and Fig. 3 hydraulic pressure slotter reacting cycle and mud circulating system schematic diagram, the mud comb of the slush pump arranged in two-wheel flute milling machine 2 connects with slurry tank 4 by after desanding device 3, arranges outlet and connected with a phase slotted eye or second phase slotted eye by slurry supply pump 5 bottom slurry tank 4；Being arranged above mending slurry pipe at described slurry tank 4, mend slurry pipe and tonified the slurry pump outlet, tonified the slurry pump entrance and slurry mixer outlet, slurry mixer entrance connects bottom bentonite storage vat, is provided with water pipeline on the upside of slurry mixer.Overcome the disturbance to cell wall of the common hydraulic grab by the pumping mode of slagging tap, can preferably keep slurry trench stability.By the slag suction mouth being located in the middle of two cutting teeths of chute forming machine, rely on the suction of centrifugal pump by dregs sucking-off groove section.First, the soil body or rock mass are cut into little fragment by the cutting of cutting wheel, and are allowed to mix mutually with mud, and then the centrifugal pump in machine together extracts fragment and mud solution out box cut, its schematic diagram such as Fig. 2 and Fig. 3.Additionally in view of the feature of vertical shaft diaphragm wall engineering geology, i.e. master stratum is ancient soil and silt loam, chute forming machine is easy to because sticking with paste and boring and reduce grooving efficiency, therefore slag suction mouth two is surveyed and is arranged scraper, the soil stuck with paste on drill bit is disposed by cutting wheel rotary course, thus ensures chute forming machine operation expeditiously.
In order to cut to the carinate soil formed bottom box cut between two cutting wheels, cutting wheel installs inclined head tooth.The root of this inclined head tooth is hinged on fluted disc side, and arranges busy inclined head tooth and can deflect and the mechanical guiding device of return, produces deflection when inclined head tooth is positioned at work surface region.This special inclined head tooth can be flipped up by mechanical guiding device arriving bottom box cut when every time, cuts the carinate soil between two cutting wheels, its form such as Fig. 4 and Fig. 5.
Cutting method: during grooving, hydraulic pressure slotter vertical channel section, blows slowly hydraulic pressure milling chute forming machine cutting wheel sighting target into groove cutting.The soil body or rock mass are cut into the fragment of 70 ~ 80mm or less by the cutting of hydraulic pressure milling chute forming machine cutting wheel, and are allowed to mix mutually with mud, are then together extracted fragment and mud solution out box cut by the centrifugal pump in hydraulic pressure milling chute forming machine.
Groove and connection: groove section connects main employing milling joint style, is aided with adapter plate 13 joint style and constructs, when i.e. carrying out second phase groove trenching construction in the middle of two phase grooves, the part concrete of mill off one phase groove end forms zigzag overlap joint.A phase groove steel reinforcement cage transfer complete after, start lower contact plate 13 before pouring into a mould a phase groove concrete, by the concrete of hydraulic pressure milling mill off one phase slot part, expose fresh roughening concrete surface, it is ensured that one, second phase groove between overlap joint quality.
When using the construction of groove milling method, its grooving precision and the control of perpendicularity, the stability control of cell wall, the indices of fixed wall mud, the process of continuous wall connector, the problems such as lifting of large-scale overweight steel reinforcement cage are all emphasis and the difficult points of this technology.
The milling joint construction of second phase groove can mill away the part concrete of both sides one phase groove section, for guaranteeing will not be milled into the steel reinforcement cage of a phase groove section in second phase groove work progress, on the one hand the steel reinforcement cage of a phase groove section must reserve enough spaces to the edge of second phase groove, on the other hand guarantees that the steel reinforcement cage of a phase groove section is kept in the correct position when hanging process and placing concrete.For ensureing the correct of steel reinforcement cage position, utilize the pvc pipe 12 of diameter 315mm that steel reinforcement cage is positioned in phase groove steel reinforcement cage both sides, before a phase groove pours, additionally under notch, enter adapter plate 13 positioner of a length of 8.0m, such as Fig. 7-Figure 10, after casting concrete every a period of time (i.e. before concrete initial set, general 8 hours) extract adapter plate 13, so can prevent adapter plate 13 from pulling out because of concrete initial set motionless, movable up and down adapter plate 13 once per half an hour in the process, range of activity is in 30cm, prevent concrete stream impact second phase Fig. 6 PVC location and adapter plate 13 construct schematic diagram phase groove construction.In second phase groove section set milling termination process, the space after a former phase notched joint head plate 13 is extracted can ensure hydraulic pressure milling head accurate contraposition during second phase groove perforate, and pvc pipe 12 positioner of bottom can be removed by hydraulic pressure milling easily, will not destroy the integrity of groove section.Whole vertical shaft diaphram wall uses this joint form and associated construction measure extremely successful, in whole work progress, never milling is to steel reinforcement cage, from the point of view of twin spans supersonic reflectoscope testing result and the wall segment situation excavated, within second section liner following body of wall seam all can be maintained at lcm.
Claims (7)
1. a construction technology for diaphram wall built by slotter, it is characterized in that: comprise the following steps: (1) utilizes crane lifting to grab bucket to ground plane apertures；(2) crane lifting two-wheel flute milling machine two phase groove main apertures separately of construction are utilized；(3) utilizing crane lifting two-wheel flute milling machine to construct a phase groove secondary orifices, this phase groove secondary orifices is between two phase groove main apertures；(4) a phase groove steel reinforcement cage is entered under in a described phase groove main aperture and secondary orifices；(5) utilize pvc pipe that steel reinforcement cage is positioned at phase groove steel reinforcement cage two ends；(6) adapter plate is entered down between notch and the cell wall before a phase groove pours；(7) casting concrete in a phase groove；(8) crane lifting two-wheel flute milling machine construction second phase slotted eye is utilized；(9) second phase groove steel reinforcement cage is entered under in second phase slotted eye；(10) casting concrete in second phase groove.
The construction technology of diaphram wall built by slotter the most according to claim 1, it is characterized in that: described two-wheel flute milling machine includes frame, motor and groove milling wheel, motor end output shaft is connected by drive mechanism and two symmetrical groove milling wheel rotating shafts respectively, and two groove milling wheels reversely rotate；The power end being provided with slush pump, slush pump and motor in frame is connected with external power supply by cable, and the stock inlet of slush pump is arranged on the upside of two groove milling wheel centers.
The construction technology of diaphram wall built by slotter the most according to claim 1 and 2, it is characterized in that: be configured with mud circulating system with described two-wheel flute milling machine, the mud comb of the slush pump arranged in two-wheel flute milling machine connects with slurry tank by after desanding device, arranges outlet and connected by slurry supply pump and a phase slotted eye or second phase slotted eye bottom slurry tank；Being arranged above mending slurry pipe at described slurry tank, mend slurry pipe and tonified the slurry pump outlet, tonified the slurry pump entrance and slurry mixer outlet, slurry mixer entrance connects bottom bentonite storage vat, is provided with water pipeline on the upside of slurry mixer.
The construction technology of diaphram wall built by slotter the most according to claim 3, it is characterized in that: the outer disk installed in groove milling wheel rotating shaft is connected with fluted disc by amortisseur.
The construction technology of diaphram wall built by slotter the most according to claim 4, it is characterized in that: on fluted disc, be provided with fixing tooth, it is additionally provided with inclined head tooth simultaneously, the root of this inclined head tooth is hinged on fluted disc side, and busy inclined head tooth is set can deflect and the mechanical guiding device of return, deflection is produced when inclined head tooth is positioned at work surface region.
The construction technology of diaphram wall built by slotter the most according to claim 1, it is characterized in that: described desanding device includes sandbox, and sandbox is tilted is provided with filter screen, the upside of the filter screen low side Qing Xieing is provided with sand removing hole, connects with slurry tank bottom sandbox.
The construction technology of diaphram wall built by slotter the most according to claim 1, it is characterized in that: described adapter plate is a kind of wedge structure containing adjustment inclined-plane, and its upper port both sides are respectively arranged with the triangle fixing steel plate containing hypotenuse；In the wider side of adapter plate at least provided with two parallel triangle location-plates；Described each triangle location-plate is parallel with adapter plate respectively.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106812133A (en) * | 2017-03-19 | 2017-06-09 | 福建永强岩土股份有限公司 | All steel module and cast-in-situ superthin concrete underground impervious wall and its construction method |
| CN109138023A (en) * | 2018-08-21 | 2019-01-04 | 中铁二局集团有限公司 | A kind of continuous wall trench underground method under complex geological condition |
| CN109339032A (en) * | 2018-10-19 | 2019-02-15 | 岩土科技股份有限公司 | The method for carrying out construction of diaphragm wall using twisting sucker head |
| CN110158692A (en) * | 2019-05-23 | 2019-08-23 | 江苏徐工工程机械研究院有限公司 | A kind of milling wheel |
| CN110258518A (en) * | 2019-06-13 | 2019-09-20 | 广州穗岩土木科技股份有限公司 | A kind of underground continuous wall construction method of city-across pipeline |
| CN110409458A (en) * | 2019-07-22 | 2019-11-05 | 武汉一冶建筑安装工程有限责任公司 | Ultra-deep abnormal shape diaphram wall enters rock construction method |
| CN110886335A (en) * | 2019-11-29 | 2020-03-17 | 杭州市市政工程集团有限公司 | Block rock digging and rock entering construction trenching machine |
| CN111173062A (en) * | 2020-01-17 | 2020-05-19 | 中国葛洲坝集团市政工程有限公司 | Construction method for five milling groove sections of benzyl-shaped unit groove of diaphragm wall |
| CN111893989A (en) * | 2020-06-19 | 2020-11-06 | 中交第二航务工程局有限公司 | Underground diaphragm wall multi-groove simultaneous milling construction method based on groove wall reinforcement |
| CN113279442A (en) * | 2021-05-09 | 2021-08-20 | 苏州中车建设工程有限公司 | High-pressure slurry dado construction equipment of underground continuous wall grooving |
| CN113323047A (en) * | 2021-06-01 | 2021-08-31 | 江苏徐工工程机械研究院有限公司 | Milling and deslagging integrated excavation device |
| CN114032883A (en) * | 2021-11-27 | 2022-02-11 | 红安县水电建筑安装公司 | Double-wheel milling anti-seepage wall structure and construction process thereof |
| CN114086618A (en) * | 2022-01-21 | 2022-02-25 | 北京建工土木工程有限公司 | Modularization groove milling device for underground diaphragm wall construction |
| CN114086619A (en) * | 2022-01-21 | 2022-02-25 | 北京建工土木工程有限公司 | Device and method for performing underground diaphragm wall construction by using slot milling machine under low clearance |
| CN115126026A (en) * | 2022-05-11 | 2022-09-30 | 江苏徐工工程机械研究院有限公司 | Milling device of slot milling machine and slot milling machine |
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| CN106812133B (en) * | 2017-03-19 | 2019-05-03 | 福建永强岩土股份有限公司 | All steel module and cast-in-situ superthin concrete underground impervious wall and its construction method |
| CN106812133A (en) * | 2017-03-19 | 2017-06-09 | 福建永强岩土股份有限公司 | All steel module and cast-in-situ superthin concrete underground impervious wall and its construction method |
| CN109138023A (en) * | 2018-08-21 | 2019-01-04 | 中铁二局集团有限公司 | A kind of continuous wall trench underground method under complex geological condition |
| CN109339032A (en) * | 2018-10-19 | 2019-02-15 | 岩土科技股份有限公司 | The method for carrying out construction of diaphragm wall using twisting sucker head |
| CN110158692A (en) * | 2019-05-23 | 2019-08-23 | 江苏徐工工程机械研究院有限公司 | A kind of milling wheel |
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| CN110258518A (en) * | 2019-06-13 | 2019-09-20 | 广州穗岩土木科技股份有限公司 | A kind of underground continuous wall construction method of city-across pipeline |
| CN110409458A (en) * | 2019-07-22 | 2019-11-05 | 武汉一冶建筑安装工程有限责任公司 | Ultra-deep abnormal shape diaphram wall enters rock construction method |
| CN110886335B (en) * | 2019-11-29 | 2023-12-19 | 杭州市市政工程集团有限公司 | Block rock mass digs rock-entering construction grooving machine |
| CN110886335A (en) * | 2019-11-29 | 2020-03-17 | 杭州市市政工程集团有限公司 | Block rock digging and rock entering construction trenching machine |
| CN111173062A (en) * | 2020-01-17 | 2020-05-19 | 中国葛洲坝集团市政工程有限公司 | Construction method for five milling groove sections of benzyl-shaped unit groove of diaphragm wall |
| CN111893989A (en) * | 2020-06-19 | 2020-11-06 | 中交第二航务工程局有限公司 | Underground diaphragm wall multi-groove simultaneous milling construction method based on groove wall reinforcement |
| CN113279442A (en) * | 2021-05-09 | 2021-08-20 | 苏州中车建设工程有限公司 | High-pressure slurry dado construction equipment of underground continuous wall grooving |
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| CN114086618A (en) * | 2022-01-21 | 2022-02-25 | 北京建工土木工程有限公司 | Modularization groove milling device for underground diaphragm wall construction |
| CN114086619A (en) * | 2022-01-21 | 2022-02-25 | 北京建工土木工程有限公司 | Device and method for performing underground diaphragm wall construction by using slot milling machine under low clearance |
| CN114086618B (en) * | 2022-01-21 | 2022-05-10 | 北京建工土木工程有限公司 | Modularization milling flutes device of wall construction is even gone on underground |
| CN115126026A (en) * | 2022-05-11 | 2022-09-30 | 江苏徐工工程机械研究院有限公司 | Milling device of slot milling machine and slot milling machine |
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Application publication date: 20161123 |