五一贺词-解放军军事经济学院

船坞(台)大合拢搭载工艺
Final Erection Craft

文件号：QBJMS-01H1313-09 船坞(台)大合拢搭载工艺

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一、适用范围 Range of application
本工艺主要适用于在倾斜船台进行大合拢建造的钢质全焊接船舶；
This craft is applied to all-welding steel ships in inclined building berth
本工艺主要包含了合拢前分段技术要求以及分段吊装程序工艺。
This craft includes block technical requirement before assembly and block lifting
procedure.
二、工艺内容Content:
1、大合拢前的场地准备：Site preparation before final erection:
1.1船体分段大合拢通常在船台或船坞上进行，对船台场地应进行必要的打扫和清理。
Block erection usually is conducted on berth or dock, the ground should be clean.
1.2船台中心线 处勘划船体中心线的船台地面扁钢条应除锈，涂防锈漆，所勘划船中心线肋
位站号应明显、永久、精确。 Ship berth flat steel bar of hull center line need rust
removal, painting antirust paint. Frame number on ship center line should be
obvious, permanent and accurate.
1.3在船台一侧设置永久性标杆并涂上油漆，在 标杆上设置分段水平检验标志，该标志要求
醒目，在船台合拢区域内不得有妨碍激光寻标的任何物件。S et a permanent benchmark
on one side of berth and being painted. Set block level testing mark on benchmark,
this testing mark should be striking. Anything in berth erection area obstruct
laser marking is not permitted.
1.4船台定位肋骨线，根据排楞图中滑落机的位置，定出船体在船台上的布置位置，用 40mm×40mm肋位样条在船体基线一定高度位置，定出船台面中心线肋位号标志，该标志应明
显、永久 、精确。Locate frame line. According location of slide machine, find
arrangement location of hull on berth, and mark the berth center frame number,
and this mark should be obvious, permanent and accurate.
2、大合拢前分段技术要求：Block technical requirement before final erection;
2.1进行大合拢的分段 作为中间产品，必须是经中合拢检验合格的分段产品，其分段的建造
精度符合CSQS。进行船台大合拢 预装的预埋件，必须根据生产计划及托盘表的要求按时
送到大合拢指定地点。As semi- finished product, final erection blocks must be
qualified after middle erection, of which building accuracy must accord to CSQS.
The embedded part for berth erection preassembly must be sent to erection place

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in time according to production plan and requirement of tray table.
3大合拢分段合拢要点：Key point of final erection blocks
3.1分段合拢时以定位分段为基准，然后向艏、艉方向发展的舯塔 式建造方案。为此定位分
段上船台前两端余量割净，按焊接型式要求两端开出坡口。In block erection, with the
base block as reference, building fore and aft, which is middle tower building
scheme, is adopted. Clean margin of both ends of base blocks before they are
carried to berth. Open groove at both base block ends according to welding types.
3.2主船体其 它各分段其拼接端的余量上船台套割，其另一端自由端在上船台前割去余量，
开出焊接坡口。艏楼、甲板 室分段下端余量上船台合拢时套割。The joint side margin
of each other blocks should be cut off before erection. And margin of the other
free end should cut off before erection and open the welding groove. The margin
of lower part of forecastle and deck house should be cut during the erection.
3.3船体双层底企口上侧余量△▲50mm，用企口接缝线＋10mm作为上口线激光划线，然后割
去余量。For double bottom, the margin of upper side is △▲50mm, use groove seam
line ＋10mm as upper edge line laser mark, then cut off the margin.
3.4分段两端构件尽可能一刀切，为保证分段的强度和构件的完整性，纵向构件碰到横舱壁
时，构件 应延伸到舱壁，环形大接缝尽量在同一平面内。To ensure the block strength
and integrity of components, cut the components of both block ends with one cut
as possible. When longitudinal component encounter the transverse bulkhead,
component should be extended to bulkhead, and big ring joint should be at same
level as possible.
3.5为保证底部双层底分段长 度和减少舷侧分段与双层底分段的肋位的错位现象，在双层底
分段的大合拢接口处的肋位，船台定位考虑 环缝焊接收缩量后，装配误差应控制在
+3~-0mm之内。To ensure block length of double bottom and reduce the frame number
dislocation of double bottom, error of assembly on erection joint frame number
of double bottom should be within +3~-0mm, considering the shrinkage of circular
seam welding.
3.6为使上层建筑吊装时，肋位误差尽可能小，主船体大合拢接口肋位误差控制在±5mm之内。
To reduce frame number error as possible when lifting the superstructure, control
the frame joint error of hull erection within ±5mm
3.7舷侧分段下口外板50mm 纵舱壁20mm余量按标杆修正定位水线＋10mm，再放公差＋12mm,

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划线后再割去下端余量。
3.8 对于双壳体的船舶，考虑内壳的精度，纵向舱口围板焊在舷侧分段甲板上，该甲板不伸
出纵舱壁和纵向舱口围板，左右相应舷侧分段应在平台上事先在分段艏艉上端用方形横
撑过桥固定，同时 亦可在船台上分别定位后,加固方形横撑过桥。As for double shell
ship, considering accuracy of inner shell, longitudinal hatch coaming should be
welded to decks of shipside block. The deck could not extend out of longitudinal
bulkhead and longitudinal hatch coaming. Relevant shipside blocks PS should be
fixed on platform with square gap bridge in advance. Also,locate
3.9根据图纸要求加放大合拢分段反变形值，本厂惯例 艉部0、-10、-15mm，艏部-5、-5、-10mm。
Add deformation value of erection block as drawings requirement, usually
deformation value of stern is 0、-10、-15mm,and that of bow is -5、-5、-10mm.
3. 10对箱型结构双层底分段环缝的焊接，一定要在前后或后方已拼2～3只分段，并在其中
分段上加固体 重物压载后才可进行。For circular seam welding of box structure
double bottom block, it is necessary that there have been 2 or 3 jointed block
fore or aft and solid heavy things to be ballasted on blocks.
3.11所有分段大合拢环缝附近的横向构件角焊缝在分段建造中均应焊妥。为使大合 拢环缝接
口光顺，减少凹凸不平现象，在大合拢环缝附近，最好在强构件处，用火工进行反变形
加工，一般将板边向外烘烤10~20mm左右，并在双层底横向环缝离实肋板若大于等于
400mm自 由端,则在舭部离环缝50mm处，做假舭肘板,用一8×300,余料拼成，直至分段
大合拢定位前拆 去。Transverse component angle welding seam near erection circular
seam should be welded well for all blocks. To make joint of erection circular
seam fair and reduce uneven part, near erection circular seam, take deformation
process with hot work. Generally bake the plate edge about10~20mm,and if distance
between double bottom transverse circular seam and solid floor is equal or greater
than 400mm free end, then make a virtual bilge bracket 50mm away from bilge. The
virtual bilge bracket is made of 8×300 margin. Remove the virtual bilge bracket
before positioned erection.
3.12分段在大接缝处的纵桁及纵向构件不包括舱壁250—500 mm内不焊接，应待大合拢拼接
后再焊接。Longitudinal girder and longitudinal component except 250-500mm of
bulkhead are not welded until erection assembly.
3.13艉轴管一般在艉立分段上预装,因而艉立分段上船台安装应以轴系粗拉线与主机座相对

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位置为基准，船台定位。在船台大合 拢时应及时测量轴系中心线的变形偏移并及时控制。
Stern tubes usually preassemble on stern vertical block, so installation of berth
should be on base of relative location of shaft rough line and ER foundation,
then position the berth. When erect the berth, excursion of shaft center line
should be measured in time and taken under control.
3.14大合拢环缝的十字焊缝分段装配定位时先矫直，内侧焊缝焊接结束后,外 侧焊缝应采用
先将纵向焊缝进行碳刨，使纵向焊缝保持光顺后进行焊接，然后碳刨环缝，焊接横向大合拢环缝。When block is being assembled, cross welding seam of erection circular
seam should be adjusted. After finishing welding inner side seam, carbon gouging
should be taken to longitudinal welding seam in order that longitudinal welding
seam keeps fair, then carbon gouge the circular seam and weld the transverse
erection circular welding seam.
3.15若舷侧分段上端舱口围板顶板处有高强度钢构件的，一般考虑舱口围板顶板的面板在大
合拢时 焊接,并严格按照高强度钢的焊接工艺进行。If there is high strength steel
component on top plate of hatch coaming on shipside block, generally the face
plate of hatch coaming is welded in erection and it takes in accordance with
welding procedure of high strength steel.
3.16凡二次除锈分段，在大接缝处端接缝及构件端部、船台散装 件处的焊缝区域不油漆，并
用胶带保护。For all secondary rust removal block, welding zones of end seam, end of
component, berth stuff are not painted and protected with adhesive tape.


3.17各分段装配定位后,分段间的船台散装构件按托盘表应装妥。
After each block assembly positioning, berth bulk between blocks should installed
well according to tray table.
3.18根据建造进度，凡已构成密闭区域处可以进行密性试验，密性试验技术要求详见 相关船
舶全船密性试验图。According to building schedule, tightness test can be taken
to enclosed area. Technical requirement of tightness test see in tightness test
drawing of relative ship.
4、拉轴线条件:Condition of pulling axis:
4.1机舱前端横舱壁向艉主船体焊接、火工、密性试验结束。
Welding from transverse bulkhead in front of engine to stern part of hull, hot

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work,then finish the tightness test.
4.2带缆桩、导缆器等系泊设备定位焊接火工结束。Positioning welding of mooring
equipment, such as bollard and fairlead completed.
5、勘划水尺、水线、载重线条件: Condition of water depth mark, water line and load
line.
5.1全船主体焊接结束，上建分段定位安装结束。Welding of main hull completed,
positioning assembly of superstructure block completed.
5.2 船体基线挠度连续三次测量值趋向稳定Three times continuous measuring value of
hull base deflection tend to be stable.
6、船舶下水前船台最少工作量:Reduce workload of berth before launching.
6.1下水前，主要船体结构、水下工作及预制预装工作结束。Before launching, preassembly
of main hull structure, underwater work, prefabrication and preassembly completed.
7、船体建造误差及验收项目 Shipbuilding error and check project:
船 长 ship length ±L1000 mm 船 宽ship width ±B1000mm
型 深 moulded depth ＋2D1000mm
船底基线龙骨挠曲度 keel deflection of bottom base line ±25 mm
船底中心线偏移 shift to bottom center line ± 5 mm
上 翘 raise 艏bow ±30 mm 艉 stern ±20 mm 大接头肋距framespace
of big joint ±10 mm
8、各类型分段合拢时吊装程序：Lifting procedure of various blocks in erection
8.1底部分段的吊装程序 Lifting procedure of bottom block
8.1.1将分段吊上船台(同时包括定位分 段在内)，分段上船台前,应按工艺要求切割余量,无
余量上船台,减少大合拢修割工作量.Lift the block onto berth（including position
block），To reduce erection modified cutting, the block should cut off margin
according to craft requirement and block should be lifted to berth without any
margin.
8.1.2吊线锤使分段定位肋骨线对准船台上相应肋骨线 Align the positioning frame line
on block to relevant frame line on berth with plumb bob.
8.1.3吊线锤使分段中心线对准船台中心线Align the center line on block to center line
on berth with plumb bob.
8.1.4用水平管(或激光经纬仪)校验船底基线高度,使之与相应的船底基线高度相符合,并使分段纵倾度与龙骨斜度相一致,注意由船台坡度而产生的读数差.

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Use leveling pipe (or laser theodolite) to check height of bottom base line to make
it coincide with height of relevant bottom base line, and coincide block trim
to keel inclination. Pay attention to differential reading caused by berth
gradient.
8.1.5用水平管校验分段横向状态,使之左右保持水平.Use leveling pipe to check
transverse condition of block to keep it horizontal left and right.
8.1.6划出并切除余量,并与相邻分段对接.Mark and cut off margin, and jointed
neighbouring blocks.
8.1.7固定分段位置,以待焊接.Fix block position to wait for welding.
8.1.8底部分段合拢精度要求:Erection accuracy requirement of bottom block.
中心线偏差<2mm Center line offset is less than 2mm
左右水平偏差±4mm Left- and-right level
船底中心线艏艉高度与基线偏差±2mm Fore and aft height of bottom center line
and base line ±2mm
肋骨检验线前后位置偏差<± and forth of frame inspection line <±4mm
8.2舷侧平面分段的吊装:Hoisting of side level block
8.2.1将分段吊上船台，根据具体船舶分段划分图要求，需要 割除的余量，应当切割完毕，
但舷顶列板上缘应于分段两端300~400mm不割，以便相邻分段对接 后，修齐上口线。Lift
the block on the slipway and cut the allowance which need to be cut according
to the block division plan, but top of sheer strake should not be cut on the both
ends of the block 300~400mm so as to touch up the edge line after the block
connection.
8.2.2使分段定位肋骨线对准底部分段相应的定位肋骨线.Make the block locating frame
line aim at the opposite locating frame line at bottom
8.2.3用水平管(或激光经纬仪 )使分段纵倾度与基线相一致,并使水线高度符合标杆上的相应
高度。Use the horizontal pipe(or laser theodolite)to make the block trim reconcile
with the base line and make the water line height fit the height of pole.
8.2.4在分段两端的肋骨线和甲板边线相交处吊线锤检验其型宽。Hang a plumb bob at the
connection of frame line and deck edge line to test its molded breadth.
8.2.5划出并割除分段下缘的余量Line out and cut the allowance at block underneath.
8.2.6固定分段，以待焊接。Fix the block for welding

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8.2.7舷侧平面分段合拢精度控制:Side level block folding accuracy control
前后水平<=3mm Back and forth <=3mm
水线高度±4mm Water line height ±4mm
8.3甲板平面分段的吊装:Deck level block hoisting
8.3 .1将分段吊上船台，根据具体船舶分段划分图要求，需要割除的余量，应当切割完毕。
Lift the block on the slipway and cut the allowance which need to be cut according
to the block division plan.
8.3.2使分段上横梁定位线对准舷侧分段同号肋骨定位线。Make the upper beam locating
line aim at the ship side same number block frame locating line.
8.3.3吊线锤 (或激光经纬仪)使分段中心线对准内底上的船体中心线。Plumb bob (or laser
theodolite)make the block center line aim at the hull center line of inner bottom.
8.3.4根据舷侧对准甲板边线。According to the side, aim at the deck edge line.
8.3.5利用水平软管检验梁拱。Use level hose to test the camber.
8.3.6固定分段，以等焊接。Fix the block for welding
8.3.7甲板平面分段合拢精度控制:Deck level block folding accuracy control
甲板中心线与船底中心偏差<3mm Deck center line and
bottom center line
甲板宽度B±0.05%B Deck breadth B±0.05%B
肋骨检验线前后位置偏差±5mm Back and forth of frame
testing line ±5mm
8.4艏立体分段的安装:Fore tridimensional block installation
8.4.1将分段吊上船台，根据具体船舶分段划分图要求，需要割除的余 量，应当切割完毕。
Lift the block on the slipway and cut the allowance which need to be cut according
to the block division plan
8.4.2吊线锤使分段中间定位 肋骨线、首端点分别对准船台上的相应肋骨线及首端点位置，
两者相矛盾时，一般以首端点作为定位依据 。Plumb bob(or laser theodolite)make the
block center locating frame line and head point respectively aim at frame and
the head point on the slipway. If conflict, generally use head point as locating
poisition.
8.4.3吊线锤 (或激光经纬仪)使分段中心线对准内底上的船体中心线。Plumb bob (or laser
theodolite)make the block center line aim at the hull center line of inner bottom.

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8.4.4吊线锤 (或激光经纬仪 )校验基线，并使之与高度标杆上相应的高度符合，并使分段的
纵向倾斜度与基线坡度相一致Plumb bob(or laser theodolite)tests the base line and
make it as same as the height pole and make the block trim as same as the base
line gradient.
8.4.5用水平软管(或激光经纬仪)校验艏端点高度，使之与高度标杆上的 首端点高相符合；
也可以用钢卷尺根据线型图上首端点距基线的垂直距离直接量取，但读数要考虑因基线
坡度而修正的数值。高度定位时，还需考虑基线的反变形值。Use level hose (or laser
theodolite)to test the height of fore head point and make it as same as the height
pole. We can also use the steel tap to measure the vertical distance between fore
head point and the base line in the body line plan directly. But the revised number
due to the base line gradient should be considered. The deformation value of base
line should also be considered when locating the height.
8.4.6用水平软管在甲板面上校验分段的横向状态，使之左右保持水平。Use the level hose
on the deck level to test block's transverse condition and keep it in balance.
8.4.7割除余量，并与相邻分段对接。Cut off the allowance and connect it with adjacent
block.
8.4.8固定分段，以等焊接。Fix the block for welding
8.4.9艏立体分段的安装精度要求: Fore tridimensional block installation accuracy
demands
中心线偏差(上下) <3mm Center line deviation (up and down) <3mm
甲板左右水平±5mm Deck right and left level deviation ±5mm
船底中心处艏艉端高度与基线偏差±5mm Fore and aft height at bottom center and
base line deviation ±5mm
肋骨检验线与船台中心线偏差±5mm Frame test line and slipway center line
deviation ±5mm
艏柱中心线与船台中心线偏差<5mm Stem center line and slipway center line
deviation <5mm
8.5艉立体分段的安装:Aft tridimensional block installation
8.5.1将分段吊上船台 ，根据具体船舶分段划分图要求，需要割除的余量，应当切割完毕。
Lift the block on the slipway and cut the allowance which need to be cut according
to the block division plan

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8.5.2吊 线锤使分段中间定位肋骨线、尾端点、舵杆中心分别对准船台上的相应标记，分段
前后位置，定位肋骨线 、舵杆中心线与尾端点的位置相矛盾时，一般以舵杆中心线为定
位依据。Plumb bob make the frame line in the middle of block 、the end point and
rudderstock center aim at the mark on the slipway separately. When front and back
position of block、locating frame line and rudderstock conflict with the end
point ,generally use the rudderstock center line as the locating basis.
8.5.3吊线锤 (或激光经纬仪)使分段中心线对准内底上的船体中心线。Plumb bob (or laser
theodolite)make the block center line aim at the hull center line of inner bottom.
8.5.4用水平 软管(或激光经纬仪)校验基线，轴中心线高度，使之与高度标杆上相应的高度
相符合，分段的纵倾度与 基线坡度相一致。Plumb bob(or laser theodolite)tests the
base line and make it as same as the height pole and make the block trim as same
as the base line gradient.
8.5.5用水平软管(或激光经纬仪)校验艉端点高度， 使之与高度标杆上的尾端点高相符合；
也可以用钢卷尺根据线型图上尾端点距基线的垂直距离直接量取， 但读数要考虑因基线
坡度而修正的数值。高度定位时，当尾端点、轴中心线与基线高度相矛盾时，一般以 轴
中心线高度为定位依据，其余作参考。Use level hose (or laser theodolite)to test
the height of fore head point and make it as same as the height pole. We can also
use the steel tap to measure the vertical distance between end point and the base
line in the body line plan directly. But the revised number due to the base line
gradient should be considered. When locating the height, if the end point and
axis center line conflict with the base line height ,usually use the axis center
line as locating basis and the others are used as reference.
8.5.6用水平软管在甲板面上校验分段的横向状态，使之左右保持水平。Use the level hose
on the deck level to test block's transverse condition and keep it in balance.
8.5.7割除余量，并与相邻分段对接，但要放焊接收缩余量3~5mm。Cut off the allowance and
connect it with adjacent block, but it need to leave welding shrinkage allowance
3~5mm.
8.5.8固定分段，以等焊接。Fix the block for welding
8.5.9艉立体分段的安装精度要求: Aft tridimensional block installation demands
中心线偏差(上下) <3mm center line deviation (up and down)

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<3mm
甲板左右水平±5mm deck right and left level ±5mm
船底中心处艏艉端高度与基线偏差±5mm Fore and aft height
at bottom center and base line deviation ±5mm
肋骨检验线与船台中心线偏差±5mm Frame test line and slipway center line
deviation ±5mm
艉柱中心线与船台中心线偏差<5mm Stem center line and
slipway center line deviation <5mm
8.6舱壁平面分段的安装:bulkhead level block installation
8.6.1将分段吊上船台。Lift the block to the slipway
8.6.2使舱壁下缘对准底部（或甲板、平台）分段上的中心线。Make the bulkhead lower aim
at the center line on the bottom(or deck、plate)
8.6.3吊线锤使舱壁中心线对准底部（或甲板、平台）分段上的中心线。The plumb bob makes
the bulkhead center line aim at the center line on the bottom(or deck、plate)
8.6.4使舱壁与基线面垂直，并用线锤或斜度样板检验。Make bulkhead and base line level
be vertical and test with plumb bob or slope model.
8.6.5用水平管校验舱壁上的水线，使之保持水平。Use horizontal pipe to test water line
on the bulkhead and keep it in balance.
8.6.6用水平管确定舱壁上的水线位置，使之与标杆上要求的水线高度相一致。Use
horizontal pipe to determine the water line position on the bulkhead ,m make the water
line height fit the height of pole.
8.6.7上述位置的高度差即为余量，在舱壁上划出并割除。Above mentioned position's
height differences are allowance; line out and cut off them on the bulkhead.
8.6.8固定舱壁，以等焊接。Fix the bulkhead for welding.
8.6.9舱壁平面分段的安装精度:Bulkhead horizontal block installation accuracy
control
中心线偏差<2mm Center line deviation <2mm
左右水平偏差±3mm Right and left horizontal deviation ±
3mm
垂直度±4mm vertical value ±4mm

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8.7上层建筑分段的安装:Superstructure block installation
8.7.1将分段吊上船台。Lift the block to the slipway
8.7.2将分段两舷外围壁定位肋骨线与甲板面上所划的肋骨线相对准。Make locating frame
line of double side bulkhead aim at the frame line lined out on the deck.
8.7.3吊线锤 (或激光经纬仪)使分段上甲板中心线及两端外围壁中心与甲板面上所划的中心
线相对准。Plumb bob (or laser theodolite)make the deck center line of block and
double ends bulkhead center aim at the frame line lined out on the deck.
8.7.4 用水平软管(或激光经纬仪)校验分段的纵倾度与基线坡度相一致基线（也可用甲板中
高检查，）分段前 后、左右端壁水线检查线在同一平面上。Use horizontal hose(or laser
theodolite) to test that the base line of the block's trim and base line slope
(also can be used in deck height testing) and all around water line test line
are on the same level.
8.7. 5根据图纸尺寸垂直量取检查水线到甲板面上的距离，大于定值者减去分段与甲板面上
的距离，大于定值 者减去分段与甲板间的空隙和定值之和即为余量，划后割除。
Vertically measure the distance between testing water line and deck level
according to the drawing size.
8.7.6固定分段，以等焊接。Fix the block for welding
8.7.7上层建筑分段的安装精度: Superstructure block installation accuracy
船中心线与甲板中心线偏差<2mm Hull center line and deck
center line deviation <2mm
左右水平±4mm right and left level ±4mm
分段高度±5mm block height ±5mm
围壁安装位置偏差±3mm Trunk installation position
deviation ±3mm
8.8.主机座分段的安装:Installation of main engine foundation block
8.8.1用水平管或激光经纬仪测量基线、轴线高度。Use horizontal pipe or laser theodolite
to measure base line 、axis height.
8.8.2修正基线。fix line
8.8.3用钢丝或其它方法拉出轴线。Pull out the axis with steel wire or other solutions
8.8.4调整基座中心，使之与轴线在同一垂直面内。Adjust the foundation center to place

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it and axis in the same vertical level.
8.8.5用水平尺和角度样板校验基座 面板倾斜度，使其横向保持水平，纵倾度与轴线斜度，
使其横向保持水平，纵倾度与轴线斜度相同。Us e horizontal ruler and angle template
to test the trim of the foundation plate and keep the transverse in balance and
make the trim same as axis slope.
8.8.6用直尺校验基座面板与轴线间的垂直距离，其差值即为余量，划线后割除。Use ruler
to test the distance between foundation plate and axis; the d-value is allowance,
mark out and cut it off.
8.8.7固定分段，以等焊接。Fix the block for welding
8.9.舱口围板的安装:Installation of hatch coaming
8.9.1用激光经纬仪划出舱口围板中心线、纵围板、前后端围板的安装位置线。Use laser
theodolite to draw the installation position line of hatch coaming center line、
longitudinal coaming and front-and-back end coaming.
8.9.2吊舱口围板上船台。Lift the coaming to the slipway
8.9.3吊线锤使前后端围板中心线对准底部舱口中心线，且垂直于基线面。Plumb bob makes
the front-and-back end coaming aim at bottom hatch center line and perpendicular to
the base line level.
8.9.4吊线锤使两舷纵围板，对准安装位置 线，调整纵倾度使之与船底基线纵倾度相一致，
且垂直于基线面。The laser theodolite make the double side longitudinal coaming
aim at the installation position line; adjust longitudinal trim and make it same
as bottom base line longitudinal trim.
8.9.5用水平管校验前后端围板，两舷纵围板的水平面板使之在同一平面内。Use the
horizontal pipe to test the front-and-back coaming and horizontal plate of double
sides longitudinal coaming and make them in the same level
8.9.6量取水平面板至甲板面和内底板面的实际高度，减去施工图纸上理论型值，所得 差值
即为余量，若甲板面和内底板面高度相矛盾时，一般以内底板面为定位依据。Measure the
actual height between horizontal panels and the deck and inner bottom plate;
minus the theoretical value and the d-value is allowance. If the deck height
conflicts with the inner bottom plate height ,generally take the inner bottom
plate.

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8.9.7固定分段，以等焊接。Settled Block waiting for welding
8.9.8舱口围板装配,要求方正其对角线误差不大于10mm。Hatch coaming assemble demands
the diagonal error doesn't greater than 10mm.