CN112431161A - Underwater dredging construction process - Google Patents
Underwater dredging construction process Download PDFInfo
- Publication number
- CN112431161A CN112431161A CN202011255812.2A CN202011255812A CN112431161A CN 112431161 A CN112431161 A CN 112431161A CN 202011255812 A CN202011255812 A CN 202011255812A CN 112431161 A CN112431161 A CN 112431161A
- Authority
- CN
- China
- Prior art keywords
- temporary support
- sludge
- construction process
- dredging
- storage box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 239000010802 sludge Substances 0.000 claims abstract description 35
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 22
- 238000013461 design Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000002689 soil Substances 0.000 claims description 8
- 238000009412 basement excavation Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000002803 fossil fuel Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 244000035744 Hura crepitans Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
- E02B3/023—Removing sediments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/005—Equipment for conveying or separating excavated material conveying material from the underwater bottom
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The application discloses a construction technology for underwater dredging, which relates to the field of hydraulic engineering, and the technical scheme is characterized by comprising the following steps: the method comprises the following steps: setting a guide mark; step two: positioning a ship; step three: setting a temporary support; step four: arranging a sludge conveying device; step five: dredging; step six: cleaning sludge; step seven: and (6) measuring and accepting. The method has the advantages of reducing the use of the barge and meeting the requirement of environmental protection.
Description
Technical Field
The application relates to the field of hydraulic engineering, in particular to an underwater dredging construction process.
Background
Dredging engineering has been ancient, and as time goes on, dredging tools have evolved from ancient artificial tools to now being replaced by machines, such as dredger and the like. With the economic development and the social progress, the development of dredging technical equipment faces the requirements of energy conservation and environmental protection. In the traditional dredging construction, a dredger and a hopper barge are fixed through cables, the dredger grabs earthwork and the like of a riverbed into the hopper barge according to requirements, after the hopper barge is fully loaded, the cables are untied, the hopper barge is hauled to a specified area by a tugboat to discard slag, and then the hopper barge is hauled to the dredger for circular operation. However, the dredging method requires the reciprocating motion of the hopper barge to transport excavated earth, so that the large use of fossil fuels can not be avoided, and the requirement of environmental protection is not facilitated.
Disclosure of Invention
Aiming at the defects in the prior art, the underwater dredging construction process is provided, the use of a mud barge can be reduced, and the environment-friendly requirement is met.
In order to achieve the purpose, the application provides the following technical scheme: an underwater dredging construction process is characterized in that: the method comprises the following steps:
the method comprises the following steps: setting a guide mark, lofting by using a GPS according to design data, calculating parameters from a known point coverage point provided by design in advance, and setting the guide mark through a ship position displayed on software;
step two: positioning a ship, namely positioning the dredger by putting down a positioning pile at a place where the water is shallow and the soil is soft;
step three: arranging a temporary support, namely arranging a temporary support 1 combined by steel pipe latticed columns in water;
step four: and arranging a sludge conveying device. Arranging a sludge conveying device on the temporary support 1, and conveying the earthwork sludge dug out by the dredger by the sludge conveying device;
step five: dredging, namely firstly dredging one side of the river, which is not provided with the temporary support 1, dismantling the temporary support 1 on the other side after the side is dredged, installing the temporary support on one side after the side is dredged, and then dredging one side, which is provided with the temporary support before;
step six: cleaning sludge; the grab bucket dredger continuously loads excavated soil into the sludge transportation device, and the sludge earthwork is transported to the bank side through the sludge transportation device;
step seven: and measuring and accepting, organizing, measuring and evaluating after a section of river channel dredging is finished, if a certain part is found not to meet the design elevation requirement, carrying out re-excavation, and if the section self-test meets the design requirement, reporting application subsection project acceptance.
By adopting the technical scheme, in the same dredging process, the excavated earth sludge is accumulated in the sludge transportation device and is transported by the sludge transportation device, so that the use of a mud barge is reduced, the use of fossil fuel is reduced, and the requirement of environmental protection is met.
The application is further configured to: the sludge conveying device comprises a temporary support, a storage box arranged on the temporary support, a support frame arranged on the temporary support and a conveying belt arranged on the support frame; the material storage box is close to one side of the support frame and is provided with a material outlet.
Through adopting above-mentioned technical scheme, the storage case keeps in the earthwork silt, and the earthwork silt that enters into the storage incasement enters into the conveyer belt through the discharge gate on, enters into the bank through the transportation of conveyer belt, clears up at the staff through the bank.
The application is further configured to: the material storage box is characterized in that a rotating shaft driven by a motor to rotate is rotatably connected to the position of a discharge port of the material storage box, and a plurality of material shifting plates are uniformly fixed on the rotating shaft along the circumferential direction of the rotating shaft.
Through adopting above-mentioned technical scheme, the flitch is stirred the earthwork silt in the storage case for the earthwork silt in the storage case leaves from the storage case more easily, improves the ejection of compact effect of earthwork silt.
The application is further configured to: and a surrounding retaining shell surrounding the kick-out plate is fixed at the edge of the discharge port.
Through adopting above-mentioned technical scheme, enclose and keep off the shell and can block splashing that the switch-plate produced at switch-plate pivoted in-process, reduce splashing of earthwork silt.
The application is further configured to: the bottom of the storage box is obliquely arranged and is close to one end, which is low in the inclined plane, of the discharge hole.
Through adopting above-mentioned technical scheme, the position department that the earthwork silt that enters into in the storage case can slide in the discharge gate under the effect of gravity for the more easy ejection of compact from the discharge gate of earthwork silt.
The application is further configured to: the support frame includes coupling unit, rotates the roller of connection in coupling unit, fixes the inserted block in coupling unit one end both sides, fixes at the connecting block of coupling unit other end both sides and fixes the fixed block in the coupling unit bottom, set up on the connecting block and supply inserted block male slot, set up the spread groove the same with interim support cross-section on the fixed block.
By adopting the technical scheme, the distance from the center line of the river channel to the bank is uncertain, and different length requirements can be met by splicing the connecting units.
The application is further configured to: the both sides of fixed block are fixed with the fixed plate, have seted up rectangular hole on the fixed plate, and the downthehole connecting bolt who has worn and the linkage unit threaded connection of rectangular.
By adopting the technical scheme, in the process of installing the connecting unit, the connecting bolt is not screwed tightly, so that the fixed block can keep a sliding state, and the error of the temporary support can be balanced conveniently; and after all the connecting units are installed, screwing the connecting bolts to fix the fixing blocks.
The application is further configured to: the support frame sets up in the slope, and is close to the one end of discharge gate for the one end that the inclined plane is low.
Through adopting above-mentioned technical scheme, the support frame that the slope set up for the earthwork silt that is located on the support frame can remove under the auxiliary action of gravity, the ejection of compact of the earthwork silt of being convenient for.
To sum up, the beneficial technical effect of this application does:
1. in the dredging process, the excavated soil silt is accumulated in the silt transportation device, and the excavated soil silt is transported by the silt transportation device, so that the use of a mud barge is reduced, the use of fossil fuels is reduced, and the requirement of environmental protection is met;
2. the storage box temporarily stores the earthwork sludge, the earthwork sludge entering the storage box enters the conveying belt through the discharge port, enters the bank through the conveying of the conveying belt, and is cleaned by workers on the bank;
3. the switch plate stirs the earthwork silt in the storage box, so that the earthwork silt in the storage box can leave from the storage box more easily, and the discharging effect of the earthwork silt is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a sludge transporting device;
FIG. 2 is a schematic structural view of a material storage box;
FIG. 3 is a schematic view of the support frame;
fig. 4 is a physical diagram embodying a fixed block.
In the figure: 1. a temporary support; 2. a material storage box; 21. a discharge port; 22. a surrounding baffle shell; 23. a kick-out plate; 231. a rotating shaft; 24. a connecting plate; 3. a support frame; 31. a connection unit; 311. a bevel; 32. a roll shaft; 33. inserting a block; 34. connecting blocks; 341. a slot; 35. a fixed block; 351. connecting grooves; 352. a fixing plate; 353. a strip hole; 354. a connecting bolt; 4. and (4) a conveyor belt.
Detailed Description
The present application is described in further detail below with reference to the attached figures.
Example (b): an underwater dredging construction process comprises the following steps:
the method comprises the following steps: and setting a guide mark. And according to the design data, lofting by using a GPS. And resolving parameters to known point-coverage points provided by the design in advance, and setting a guide mark through the ship position displayed on the software.
Step two: and (5) positioning the ship. The dredger is positioned by putting down the positioning piles at the place where the water is shallow and the soil is soft. The used dredger is of a non-self-propelled type, the dredger is towed to the position about 200m of the upstream of a construction area by a towing wheel during positioning, a proper bolt anchor point is searched by the bank side on one side of the dredging area, the dredger accurately reaches the construction area by retracting a main anchor, a side anchor and a tail anchor according to the indication of a bank guide mark or the guidance of a GPS (global positioning system), and positioning is completed. Generally throwing an anchor once, moving forwards by 40-50m and transversely moving by 3 times of the width of the ship.
Step three: and (5) setting a temporary support. Each underwater temporary support is formed by combining steel pipe latticed columns. Each group of lattice columns is a lattice composed of phi 600 x 8 mm-phi 800 x 10mm steel pipes and No. 16 channel steel. The upper part of the support lattice is supported by I-steel and steel box distribution beams, and a falling frame sand box body is arranged at the bottom of the reinforcing chord of the Bailey beam in the lattice. The upper part of the I-steel and steel box body distribution beam is provided with a 45-number I-steel small column cap, an arch rib lower edge plate and a wedge-shaped steel cushion block for supporting the arch rib.
Step four: and arranging a sludge conveying device. The sludge conveying device is arranged on the temporary support 1, and the sludge conveying device conveys the sludge dug by the dredger, so that the use of a mud barge is reduced. The sludge transporting devices are multiple in number and are all arranged on one side of the center line of the river.
Referring to fig. 1, the device comprises a temporary support 1, a storage box 2 placed on the temporary support 1, a support frame 3 placed on the temporary support 1, and a conveyor belt 4 arranged on the support frame 3.
Referring to fig. 2, a discharge port 21, a surrounding retaining shell 22 fixed on the discharge port 21, a material-shifting plate 23 disposed at the position of the discharge port 21 of the storage tank 2, and a connecting plate 24 fixed at the bottom end of the storage tank 2 are disposed on one side (close to the supporting frame 3) of the storage tank 2. The enclosure shell 22 is arranged around the material stirring plate 23, and can block splashing of materials caused by the material stirring plate 23. The bottom end of the storage box 2 is inclined, and the discharge port 21 is the lower end of the inclined plane.
The position of the discharge hole of the material storage box 2 is rotationally connected with a rotating shaft 231 driven by a motor to rotate, the number of the material poking plates 23 is a plurality, and the material poking plates are uniformly fixed on the rotating shaft 231 along the circumferential direction of the rotating shaft 231. The kick-out plate 23 can take out the sludge in the storage tank 2 from the position of the discharge port 21, thereby increasing the discharging effect of the storage tank 2.
The number of the connecting plates 24 is four, and the cross section is L-shaped. The four connecting plates 24 together form a square with the same section as the temporary support 1, and the temporary support 1 is inserted into the middle of the square for fixing the storage box 2. The connecting plate 24 can be screwed with bolts to increase the fixing effect on the material storage box 2.
Referring to fig. 3 and 4, the supporting frame 3 includes a connection unit 31, a roller shaft 32 rotatably connected in the connection unit 31, insertion blocks 33 fixed at both sides of one end of the connection unit 31, connection blocks 34 fixed at both sides of the other end of the connection unit 31, and a fixing block 35 connected at the bottom end of the connection unit 31.
The connecting unit 31 is integrally arranged in an inclined manner, and one end of the connecting unit close to the material storage box 2 is the end with a high inclined surface. Inclined surfaces 311 are fixed to both sides of the connection unit 31 such that the opening of the top end of the connection unit 31 is larger than the opening of the bottom end. The number of the roller shafts 32 is plural, and the roller shafts 32 are arranged in parallel inside the connection unit 31, and the axial direction of the roller shafts 32 is parallel to the longitudinal direction of the connection unit 31. One end of the roller shaft 32 may be provided as a motor that powers the roller shaft 32.
A slot 341 is formed in one side of the connection block 34 away from the connection unit 31, and the slot 341 can be used for inserting the insertion block 33; the insertion block 33 of one connection unit 31 is inserted into the insertion groove 341 of another connection unit 31, and the connection of two adjacent connection units 31 is completed. The conveyor belt 4 is disposed around the roller shaft 32, and the width of the conveyor belt 4 is the same as that of the connecting unit 31.
The fixing block 35 is provided with a connecting groove 351, and the connecting groove 351 has the same section as that of the temporary support 1. Fixing plates 352 are fixed to both sides of the fixing block 35, a long hole 353 is formed in the fixing plate 352, and a connecting bolt 354 threadedly connected to the connecting unit 31 is inserted into the long hole 353. The fixing block 35 is coupled to the coupling unit 31 by a coupling bolt 354.
Before installation, the distance between the temporary stands 1 and the height of the temporary stands 1 at different positions (for example, the height is lower as the shore side is closer) are calculated from the length and the inclination angle of the connection unit 31, and the temporary stands 1 are installed. After the temporary support 1 is installed, the storage box 2 and the support frame 3 are installed on the temporary support. During the installation of the connection unit 31, the connection bolt 354 is not tightened, so that the fixed block 35 can maintain a sliding state to balance the error of the temporary support 1; after all the connection units 31 are installed, the connection bolts 354 are tightened to fix the fixing block 35. Finally, the conveyor belt 4 is wound on the roller 32, and the installation of the sludge transporting device is completed.
Step five: and (4) dredging. The construction adopts partition, layering and strip construction, strips are formed according to the width of the grab dredger, the strips are overlapped by 1m, and the partition length is determined according to the length of the anchor cable for shifting the dredger. The dredging is carried out by adopting fan-shaped excavation, the distance between the lower grab buckets is controlled, and the bucket width of 1/3 is generally overlapped. The excavation of the side slope is based on the side slope of the design drawing, the side slope adopts stepped excavation, and the control is carried out according to the principle of 'over-under over under and over under balance', so as to meet the requirement of designing the side slope. The advancing distance of the dredger is about one bucket width each time, and the lower bucket distance needs to be overlapped by 1/4-1/3 grab bucket widths.
During dredging, firstly dredging one side of the river, on which the temporary support 1 is not arranged, removing the temporary support 1 on the other side after the side dredging is finished, installing the temporary support on the side after the side dredging is finished, and then dredging the side on which the temporary support is arranged.
Step six: and (4) cleaning the sludge. The grab excavator continuously loads excavated soil into the storage box 2, and sludge entering the storage box 2 falls onto the conveyor belt 4 from the discharge port 21 under the driving of the stirring plate 23 and enters the bank side under the transportation of the conveyor belt 4. And then transported to the airing field by the staff on the bank.
Step seven: and (6) measuring and accepting. After one section of river channel dredging is finished, organization measurement and map evaluation are carried out, and if a certain part is found not to meet the design elevation requirement, the dredging is carried out again. If the river reach self-test meets the design requirements, reporting the application to a subsection project acceptance.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An underwater dredging construction process is characterized in that: the method comprises the following steps:
the method comprises the following steps: setting a guide mark, lofting by using a GPS according to design data, calculating parameters from a known point coverage point provided by design in advance, and setting the guide mark through a ship position displayed on software;
step two: positioning a ship, namely positioning the dredger by putting down a positioning pile at a place where the water is shallow and the soil is soft;
step three: arranging a temporary support, namely arranging a temporary support 1 combined by steel pipe latticed columns in water;
step four: arranging a sludge conveying device;
arranging a sludge conveying device on the temporary support 1, and conveying the earthwork sludge dug out by the dredger by the sludge conveying device;
step five: dredging, namely firstly dredging one side of the river, which is not provided with the temporary support 1, dismantling the temporary support 1 on the other side after the side is dredged, installing the temporary support on one side after the side is dredged, and then dredging one side, which is provided with the temporary support before;
step six: cleaning sludge; the grab bucket dredger continuously loads excavated soil into the sludge transportation device, and the sludge earthwork is transported to the bank side through the sludge transportation device;
step seven: and measuring and accepting, organizing, measuring and evaluating after a section of river channel dredging is finished, if a certain part is found not to meet the design elevation requirement, carrying out re-excavation, and if the section self-test meets the design requirement, reporting application subsection project acceptance.
2. The underwater dredging construction process according to claim 1, wherein: the sludge conveying device comprises a temporary support (1), a storage box (2) placed on the temporary support (1), a support frame (3) placed on the temporary support (1) and a conveying belt (4) arranged on the support frame (3); a discharge hole (21) is arranged at one side of the storage box (2) close to the support frame (3).
3. The underwater dredging construction process according to claim 2, wherein: the rotary material storage box is characterized in that a rotary shaft (231) driven to rotate by a motor is rotatably connected to the position of a discharge hole of the material storage box (2), and a plurality of material shifting plates (23) are uniformly fixed on the rotary shaft (231) along the circumferential direction of the rotary shaft (231).
4. The underwater dredging construction process according to claim 3, wherein: and a surrounding retaining shell (22) surrounding the material shifting plate (23) is fixed at the edge of the material outlet (21).
5. The underwater dredging construction process according to claim 2, wherein: the bottom end inside the material storage box (2) is obliquely arranged and is close to one end, with a low inclined surface, of the material outlet (21).
6. The underwater dredging construction process according to claim 2, wherein: support frame (3) include coupling unit (31), rotate roller (32) of connection in coupling unit (31), fix inserted block (33) in coupling unit (31) one end both sides, fix connecting block (34) in coupling unit (31) other end both sides and fix fixed block (35) in coupling unit (31) bottom, offer on connecting block (34) and supply inserted block (33) male slot (341), offer on fixed block (35) and have connected groove (351) the same with interim support (1) cross-section.
7. The underwater dredging construction process according to claim 6, wherein: fixing plates (352) are fixed on two sides of the fixing block (35), a long hole (353) is formed in each fixing plate (352), and a connecting bolt (354) in threaded connection with the connecting unit (31) penetrates through each long hole (353).
8. The underwater dredging construction process according to claim 2, wherein: the support frame (3) is obliquely arranged, and one end close to the discharge hole (21) is the end with a low inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011255812.2A CN112431161A (en) | 2020-11-11 | 2020-11-11 | Underwater dredging construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011255812.2A CN112431161A (en) | 2020-11-11 | 2020-11-11 | Underwater dredging construction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112431161A true CN112431161A (en) | 2021-03-02 |
Family
ID=74699761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011255812.2A Pending CN112431161A (en) | 2020-11-11 | 2020-11-11 | Underwater dredging construction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112431161A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2492403A2 (en) * | 2011-02-22 | 2012-08-29 | Purgotec OY | Method and apparatus for purging sludge from the bottom of a water area |
| CN107859330A (en) * | 2017-10-26 | 2018-03-30 | 浙江园冶生态建设有限公司 | A kind of earthwork lifting operation construction method of heavy construction roof garden |
| CN208136999U (en) * | 2018-05-05 | 2018-11-23 | 深圳市蛇口招商港湾工程有限公司 | A kind of mud transportation system |
| CN110280166A (en) * | 2019-08-02 | 2019-09-27 | 马鞍山英维爱生态科技有限公司 | A kind of discharging device of highway asphalt mixture |
| CN213682277U (en) * | 2020-11-11 | 2021-07-13 | 中铁二十五局集团第五工程有限公司 | Silt transporting device |
-
2020
- 2020-11-11 CN CN202011255812.2A patent/CN112431161A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2492403A2 (en) * | 2011-02-22 | 2012-08-29 | Purgotec OY | Method and apparatus for purging sludge from the bottom of a water area |
| CN107859330A (en) * | 2017-10-26 | 2018-03-30 | 浙江园冶生态建设有限公司 | A kind of earthwork lifting operation construction method of heavy construction roof garden |
| CN208136999U (en) * | 2018-05-05 | 2018-11-23 | 深圳市蛇口招商港湾工程有限公司 | A kind of mud transportation system |
| CN110280166A (en) * | 2019-08-02 | 2019-09-27 | 马鞍山英维爱生态科技有限公司 | A kind of discharging device of highway asphalt mixture |
| CN213682277U (en) * | 2020-11-11 | 2021-07-13 | 中铁二十五局集团第五工程有限公司 | Silt transporting device |
Non-Patent Citations (1)
| Title |
|---|
| 李慧等: "建造师便携手册-市政、公路、水利水电卷", vol. 1, 30 April 2016, 辽宁科学技术出版社, pages: 130 - 133 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105672195B (en) | Suction Dredging Construction engineering method is twisted under a kind of urban ecology urban river water | |
| CN112502777B (en) | Method for treating tunnel inrush roof collapse and door closing | |
| CN101315139B (en) | Immersed pipe construction technique of river crossing pipe | |
| CN109797749B (en) | Underwater foundation pit construction device and construction method | |
| CN102605697A (en) | Sand dredger filling construction method of soft soil foundation embankment | |
| CN112431161A (en) | Underwater dredging construction process | |
| CN213682277U (en) | Silt transporting device | |
| CN111364413A (en) | Construction process of outfitting wharf | |
| CN107642065B (en) | construction process for dredging, blowing and filling sand bags | |
| CN210288280U (en) | Open type cofferdam-free coral sand island reef reclamation system | |
| CN109680647A (en) | A kind of Construction at ports technique convenient for later maintenance | |
| CN209023077U (en) | Digging machine over-water construction assembly flow shop platform | |
| CN115419074B (en) | Crawler-type soil conveying and excavating method for ultra-deep foundation pit | |
| CN222845829U (en) | A high slope chute device for reconstruction and expansion | |
| CN119041460A (en) | Land Gao Jiangyan foundation construction method under complex geological environment | |
| Hines et al. | Powerful Upgrade | |
| Ivantsov | Technical Progress in Construction of Main Gas Pipelines for the Unified Gas Supply System of the USSR | |
| CN118704385A (en) | Dredging construction system | |
| Grice et al. | Design and construction of the Thames Barrier Cofferdams. | |
| Naidu et al. | Strategy for Upgrading E and F Appleton Dock, Melbourne, Australia | |
| Geddes et al. | THE CLYDE DRY DOCK PROJECT, GREENOCK. | |
| IRWIN CHILDS et al. | REDCAR ORE TERMINAL. | |
| CARTER et al. | GRAND COULEE DAM | |
| CN119981108A (en) | A double-row steel sheet pile cofferdam construction method | |
| CN118704401A (en) | Construction technology of dredging and filling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |