CN101565937B - Day block mixed dike construction method - Google Patents
Day block mixed dike construction method Download PDFInfo
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- CN101565937B CN101565937B CN2009101271762A CN200910127176A CN101565937B CN 101565937 B CN101565937 B CN 101565937B CN 2009101271762 A CN2009101271762 A CN 2009101271762A CN 200910127176 A CN200910127176 A CN 200910127176A CN 101565937 B CN101565937 B CN 101565937B
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Abstract
The invention relates to wave resistant dike construction in the field of water conservancy project, especially discloses a construction method for Chinese character 'ri' combined dike, which uses the'ri' character shaped blocks to construct the dike structure and the surface protection structure. The method specifically includes steps of: (1) construction preparation; (2) flattening the foundati on; (3) installing 'ri' character shaped blocks. The invention uses 'ri' character shaped hollow blocks as both a dike structure or a surface protection structure, having advantages of: (1) dike body section dimension is reduced combining advantage of vertical wave preventing dike; (2) 'ri' character shaped block filling stones are used to substitute the dike core stones, so that number of dike core stones are reduced; (3) number of surface blocks are reduced; (4) the dike body is smooth, beautiful, and is greatly combined with the upper parapet.
Description
Technical field
The invention belongs to the levee construction field in water conservancy project field, relate in particular to a kind of mixing dike job practices that adopts day block as main frame construction.
Background technology
Sloping breakwater adopt barrier board, four jiaos of hollow pots, quadrangular pyramid bodies more and turn round king's word or twist-shaped block as its armour.But as at depth of water larger part, the mole levee body section of several armours is bigger more than adopting, and the jackstone amount is big, and cost is higher.And if only adopted above a kind of armour, will cause the consequence that the mask effect is undesirable or can't carry out the superstructure construction.
Summary of the invention
The purpose of this invention is to provide a kind of levee body cross dimensions that reduces, reduce the dike cardiolith and throw the mixing dike job practices of filling out quantity.
For achieving the above object, the technical solution used in the present invention is, a kind of construction method for Chinese character ' ri ' combined dike, and it adopts day block as levee body structure and ground surface protection structure, specifically comprises the steps:
(1) preparation of construction, it comprises:
A: the precast concrete cushion block,
B: the positioning anchor drum is set with a padding plate rail road in the mole axis outside along the mole axis direction, and
C: carry out settlement observation to determine the pre-allowance of dike cardiolith end face sedimentation;
(2) basis leveling, it comprises:
A: carry out the dike cardiolith and measure and mend the throwing plano-convex,
B: prefabricated concrete pad pad in the axis both sides, and is propped up the track two ends on cushion block, and
C: flatten examination after each construction section leveling finishes;
(3) day block is installed, and it comprises:
A: beyond the inboard design of levee body day block hookup wire, arrange baseline is installed,
B: the construction boats and ships that will be mounted with day block are stayed the position, and
C: laid the mileage control line on initial beyond the block, carry out first examination peace then and measure its installation site, according to the distance of second design attitude to the first examination peace block both sides, position, with second installation in position; Be dependence with second again, lift by crane first and in place with reinstalling behind its pad, the rest may be inferred later on installs.
Preferably, described day block is the precast hollow square of steel and concrete structure, respectively is provided with the hollow hole of " day " font along mole axial direction both sides, and the centre is provided with partition wall, and day block other both sides be provided with the unrestrained hole that disappears.
Preferably, when step (3) day block is installed, adopt GPS to carry out measurement and positioning control, on the day block, GPS is set, measures also four angular coordinates of record block, to day block axis, mileage and elevation control, and check each block position piece day, guarantee that the block frontal line is straight.
Preferably, after day block installation, also should in time carry out the operation of rockfilling in the piece, comprise a: stone dumper is parallel to the dike axis and stays the position, the dike outside is following two mouthful of eight anchor earlier, adopts two hawsers to lie on day block near the dike side, and shipboard increases fender and prevents hull collision day block, and b: jackstone takes advantage of low tide to carry out in the piece, artificial commander, high-front shovel is thrown and is filled out, in the construction, the long-armed block below of as far as possible stretching into of excavator is thrown into piece stone again, avoids piece stone damaged in collision day block inwall corner angle.
Preferably, treat that levee body takes on a certain scale after, directly on mounted day block, build measuring table by laying bricks or stones, use total powerstation to day block install and measure control and check, use total powerstation directly to measure journal offset, mileage and the elevation of four angle points.
The present invention adopts " day " font hollow square not only as the levee body structure but also as a kind of mask form, its advantage is as follows:
(1), reduces the levee body cross dimensions in conjunction with the vertical breakwater advantage;
(2) adopt the instead of part dike cardiolith that rockfills in day block, reduce the throwing of dike cardiolith and fill out quantity;
(3) reduce the armour usage quantity;
(4) make levee body straight, attractive in appearance and well combine with the top breastwork.
Description of drawings
Fig. 1 installs a day block schematic diagram for adopting GPS or total powerstation to carry out measurement and positioning;
Fig. 2 is for being to adopt high-front shovel to carry out the schematic diagram that rockfills in day block;
Fig. 3 is a day block structural representation.
The specific embodiment
Below in conjunction with drawings and the specific embodiments the present invention is done a detailed description.
Arrive shown in Figure 3 as Fig. 1, the preferred embodiments of the present invention disclose a kind of construction method for Chinese character ' ri ' combined dike, and it adopts day block 1 as levee body structure and ground surface protection structure, specifically comprise following three steps: (1) preparation of construction, (2) basis leveling, (3) day block is installed.
Day block of the present invention is the precast hollow square of steel and concrete structure, respectively is provided with the hollow hole 11 of " day " font along mole axial direction both sides, and the centre is provided with partition wall 12, and day block other both sides be provided with the unrestrained hole 13 that disappears.The block bottom also was provided with two hallux toes 14 in preferred day, so that it has bigger floor space, was convenient to fix, and increased the stability when day, block was installed.
Three concrete theing contents are as follows of step of the present invention:
(1) preparation of construction
A, precast concrete cushion block are used for a padding plate rail road.
B, anchor drum are provided with: in mole axis outside 100m, along axis (dike line) direction of mole, every 200m is provided with a pair of positioning anchor drum.Drum weighs down to adopt turns round king's block, disposes corresponding wire rope and floating drum, and by the GPS location, refute loop wheel machine and installs the side.
C, settlement observation: the dike cardiolith is thrown to fill out in the process and is determined the pre-allowance of dike cardiolith end face sedimentation according to observed result.
(2) basis leveling
The leveling scope is respectively widened 0.5m for design day both sides, block bottom surface, the anticipated settlement decision that the leveling elevation is determined according to the settlement observation result.
Before the leveling, carry out the dike cardiolith and measure, if continuous large-area (50m occurs
2More than) absolute altitude is lower than-the following position of 300mm, need mend throwing; If exceed design elevation, remove to lower or leveling scope by the diver.
Adopt prefabricated concrete block as the leveling cushion block, cushion block is positioned at axis both sides 3.0m, the about 6m of spacing arranges one, and cushion block top mark height adds that the leveling orbit altitude is bedding top mark height.Prop up on cushion block at the track two ends, and the track elevation is if be lower than actual elevation, and pad is propped up with the 10mm steel plate in its underpart.Track elevation allowable variation 10mm.
The diver is thick earlier flat before leveling, is higher than the piece stone of scraping and removes in lower or track both sides.During leveling between piece stone the out-of-flatness position fill with two slabstones.The leveling allowable variation is ± 50mm.
The leveling of each construction section finishes, according to section of 2m, day block sideline, centre arrange measuring point, flatten examination.
(3) day block is installed
A, transportation: day block is land to be transported to harbour at precasting yard by 80 tons of automobiles lifting flat cars, and it is defeated from the dull and stereotyped transportation by lighter of boat to hang the ship dress of unloading by 80 tons of wharf apron, and quantity shipped is by supporting capacity and capacity control.Pad 20cm flitch was propped up in the bottom when day, block transported, and should notice in the lifting process preventing that collision from causing corner angle to damage.
B, the laying of installation baseline: at the inboard day block hookup wire 30cm location arrangements installation baseline in addition that designs of levee body.The wiring of employing lining rope, two ends fasten with piece stone.Baseline is laid and must straight and often be checked.
C, construction boats and ships are stayed the position: as shown in Figure 1, adopt 80 tons to hang ship 3 and carry out day block and install, hang sea mule supporting on the ship 4 and help to hang ship and enter construction area, anchor after following two splayeds, by supporting canoe two preceding cables are tethered on the floating drum in addition, stay the position perpendicular to the dike axis direction.
Certainly refute by construction area and slowly hang ship one side by installation the boat flat board side of transportation day block, firmly is tethered in by two hawsers and stays the position on the bollard of refuting installation side.
D, measure control: adopt when installing at first GPS to day block axis, mileage control; After treating that levee body takes on a certain scale, can build measuring table by laying bricks or stones on the block, use total powerstation to measure control and check, guarantee that precision is higher on mounted.
E, installation: 30cm lays the mileage control line beyond starting block, first examination peace, and it can not occupy the adjacent block position.Measure first installation site, the distance according to second design attitude to the first examination peace block both sides, position adopts flitch field fabrication timber wedge.First with examination peace be dependences, prop up the chock wedge with second according to designing and the code requirement installation in position.With second be dependence, lift by crane first, chock wedge is with its installation in position.The rest may be inferred later on.When day, block was installed, should notice preventing the damaged in collision block that the bottom surface must be flat with bedding end face one during installation, prevents to frustrate bad bedding.
Calculate axial length by initial mileage when day block is installed, and every day the block width be 3 meters, determine the average seam width of installing between the block according to the piece number again.Before each installation, measure, find out the actual installation mileage and design the mileage deviation, gradually reduce the mileage deviation, prevent that the mileage deviation from adding up and appearance installation seam size inequality by adjusting the wide method of seam to last piece position was installed last time.
The key point of job practices of the present invention is:
1, measures control
(1) before day block was installed, the 30cm location arrangements was installed baseline beyond the inboard design of levee body day block hookup wire.The wiring of employing lining rope, two ends fasten with piece stone.Baseline is laid and must straight and often be checked.
When (2) day block is installed, adopt GPS to carry out measurement and positioning control.On the day block, GPS is set, measures also four angular coordinates of record block, to day block axis, mileage and elevation control, and check each block position piece day, guarantee that the block frontal line is straight.
(3) treat that levee body takes on a certain scale after, can build measuring table by laying bricks or stones on the block on mounted, use total powerstation that control and check are measured in day block installation, use total powerstation can directly measure journal offset, mileage and the elevation of four angle points, it is easier to operate, and precision is higher.
2, day block protection
(1) transportation protection: a day block is a thin wall construction, for preventing to destroy member, when it lifts by crane transportation, has laid the steelframe of reinforcing supporting role at its end face earlier, uses timber wedge to clench and makes it play the effect of propping up overfill protection day block.
(2) protection of rockfilling in the piece: after day block installation, should in time carry out the operation of rockfilling in the piece, should carry out the protection work of day block in the process of rockfilling.
A, as shown in Figure 2, stone dumper 5 are parallel to the dike axis and stay the position, and the dike outside is following two mouthful of eight anchor earlier, adopt two hawsers to lie on day block near the dike side, and shipboard increases fender and prevents a hull collision day block.
Jackstone takes advantage of low tide to carry out in b, the piece, artificial commander, and high-front shovel 6 is thrown and is filled out.In the construction, excavator long-armed 6 stretches into the block below as far as possible and piece stone 7 is thrown into again, and avoids piece stone damaged in collision day block inwall corner angle.
(3) protect after the installation: after day block installation, should carry out next procedure as early as possible, it is long to prevent that levee body from exposing, and prevents that stormy waves from causing a day block displacement.
The present invention adopts " day " font hollow square not only as the levee body structure but also as a kind of mask form, its advantage is as follows:
(1) in conjunction with the vertical breakwater advantage, reduces the levee body cross dimensions;
(2) adopt the replacement part dike cardiolith that rockfills in day block, reduce dike cardiolith throwing quantity;
(3) reduce the armour usage quantity;
(4) make levee body straight, attractive in appearance and well combine with the top breastwork.
Claims (4)
1. construction method for Chinese character ' ri ' combined dike, it is characterized in that: adopt day block as levee body structure and ground surface protection structure, block was the precast hollow square of steel and concrete structure in described day, respectively be provided with the hollow hole of " day " font along mole axial direction both sides, the centre is provided with partition wall, and day block other both sides be provided with the unrestrained hole that disappears, specifically comprise the steps:
(1) preparation of construction, it comprises:
A: the precast concrete cushion block,
B: the positioning anchor drum is set with a padding plate rail road in the mole axis outside along the mole axis direction, and
C: carry out settlement observation to determine the pre-allowance of dike cardiolith end face sedimentation;
(2) basis leveling, it comprises:
A: carry out the dike cardiolith and measure and mend the throwing plano-convex,
B: prefabricated concrete pad pad in the axis both sides, and is propped up the track two ends on cushion block, and
C: flatten examination after each construction section leveling finishes;
(3) day block is installed, and it comprises:
A: beyond the inboard design of levee body day block hookup wire, arrange baseline is installed,
B: the construction boats and ships that will be mounted with day block are stayed the position, and
C: laid the mileage control line on initial beyond the block, carry out first examination peace then and measure its installation site, according to the distance of second design attitude to the first examination peace block both sides, position, with second installation in position; Be dependence with second again, lift by crane first and in place with reinstalling behind its pad, the rest may be inferred later on installs.
2. construction method for Chinese character ' ri ' combined dike according to claim 1, it is characterized in that, when step (3) day block is installed, adopt GPS to carry out measurement and positioning control, on the day block, GPS is set, measures also four angular coordinates of record block, to day block axis, mileage and elevation control, and check each block position piece day, guarantee that the block frontal line is straight.
3. construction method for Chinese character ' ri ' combined dike according to claim 1, it is characterized in that, after the day block installation, also should in time carry out the operation of rockfilling in the piece, comprise a: stone dumper is parallel to the dike axis and stays the position, the dike outside is following two mouthful of eight anchor earlier, adopt two hawsers to lie on day block near the dike side, shipboard increases fender and prevents hull collision day block, and b: jackstone takes advantage of low tide to carry out in the piece, artificial commander, high-front shovel is thrown and is filled out, in the construction, the long-armed block below of as far as possible stretching into of excavator is thrown into piece stone again, avoids piece stone damaged in collision day block inwall corner angle.
4. construction method for Chinese character ' ri ' combined dike according to claim 2, it is characterized in that, after treating that levee body takes on a certain scale, directly built measuring table by laying bricks or stones on the block on mounted, use total powerstation that control and check are measured in day block installation, use total powerstation directly to measure journal offset, mileage and the elevation of four angle points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101271762A CN101565937B (en) | 2008-04-24 | 2009-03-16 | Day block mixed dike construction method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810104828.6 | 2008-04-24 | ||
| CN200810104828 | 2008-04-24 | ||
| CN2009101271762A CN101565937B (en) | 2008-04-24 | 2009-03-16 | Day block mixed dike construction method |
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| Publication Number | Publication Date |
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| CN101565937A CN101565937A (en) | 2009-10-28 |
| CN101565937B true CN101565937B (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101271762A Active CN101565937B (en) | 2008-04-24 | 2009-03-16 | Day block mixed dike construction method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018508A (en) * | 2014-07-01 | 2014-09-03 | 长江重庆航道工程局 | Stone dumper of high-front shovel and stone-dumping construction method thereof |
| CN105544458B (en) * | 2015-12-30 | 2017-05-31 | 中交第二航务工程局有限公司 | Deep-water slope formula breakwater block stone is installed and reason slope technique |
| CN108797521A (en) * | 2018-09-06 | 2018-11-13 | 中国科学院地理科学与资源研究所 | A kind of Reef in Chinese South Sea ecological bank protection structure based on porous block stone |
| CN112281746A (en) * | 2020-10-20 | 2021-01-29 | 浙江世润建创科技发展有限公司 | Novel flood bank structure and construction method thereof |
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