CN110512609B - Riprap system jacket and construction process thereof - Google Patents
Riprap system jacket and construction process thereof Download PDFInfo
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- CN110512609B CN110512609B CN201910759098.1A CN201910759098A CN110512609B CN 110512609 B CN110512609 B CN 110512609B CN 201910759098 A CN201910759098 A CN 201910759098A CN 110512609 B CN110512609 B CN 110512609B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere
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Abstract
The invention relates to a novel riprap system jacket and a construction process thereof, which are characterized in that: the device comprises a jacket frame, a box beam structure and a bracket structure; the bracket structure is arranged on an integral structure formed by the jacket frame and the box-type beam structure; the concrete construction steps include S1: building a jacket frame; s2: constructing a box girder structure; s3: constructing a bracket structure; s4: integrally assembling; in each stage of the construction process of the riprap system jacket, the shrinkage allowance of welding and releasing and the reversible deformation are considered, prefabrication is carried out strictly according to components, and the control of the key size of assembly is enhanced; the sequence of positioning and welding strictly follows: the step-by-step installation is carried out according to the principle of from bottom to top and from inside to outside; the process has the advantages of convenient welding, high folding precision and capability of improving the welding quality and the working efficiency.
Description
Technical Field
The invention relates to the technical field of ocean engineering and ship construction, in particular to a riprap system jacket and a construction process thereof.
Background
The hong Zhu and Australia bridge is a super engineering which attracts attention in the world, wherein the submarine tunnel engineering has the highest technical difficulty, and the great amount of world is created. Compared with two immersed tube tunnel projects of Danish Erle straits and Korean kettle mountains which also adopt the prior paving method process, the rubble foundation bed of the ocean bottom tunnel of the Hongzhao Australian bridge adopts the prior paving method process, the total workload of rubble throwing and leveling is large, and the total amount of rubble paving is 36.3 ten thousand meters for carrying out the year; the leveling gradient of the gravel foundation bed is changed greatly, and 29 gradients are counted; the water depth is greatly changed, and the water depth of the foundation bed is 8-45 m; the leveling process and the leveling precision of the immersed tube foundation have very high requirements, and the underwater elevation control difficulty is high.
The self-elevating gravel leveling ship is specially designed and built for the implementation of the project and comprises a main ship body, 4 self-elevating pile legs (comprising a hydraulic system), a movable trolley, a follow-up belt conveyor, a fixed belt conveyor, a feeding hopper, a gravel throwing pipe, a gravel throwing leveling head and the like.
As one of the key parts of the self-elevating gravel leveling ship, the construction of the jacket of the riprap system has a plurality of difficulties:
1. most of the jacket structures of the riprap system are truss structures, the structure is dense, the assembly precision requirement is high, and the size welding and the assembly precision required by all stages of processes are particularly high for ensuring the final installation precision.
2. The box beam structure in the jacket of the riprap system has small welding space and large welding amount, is easy to generate larger stress and deformation, needs to be welded strictly according to the welding sequence and the corresponding WPS (wavelet packet service) requirements, selects proper current and voltage and controls the welding speed.
3. Controlling welding deformation: the tool and the jig frame are fully utilized, the reverse deformation is preset, the welding shrinkage allowance is added and released, and a reasonable welding sequence is formulated.
Therefore, the development of a jacket construction technology of a self-elevating gravel leveling ship riprap system, which has the advantages of good construction environment, convenient welding, high manufacturing precision and capability of improving the welding quality and the working efficiency, is urgently needed. Through examination of relevant documents, the technical scheme which is the same as or similar to the technical scheme of the invention is not found.
Disclosure of Invention
The invention aims to solve the technical problem of providing a jacket of a stone throwing system of a self-elevating gravel leveling ship, which has the advantages of good construction environment, convenient welding, high folding precision and capability of improving the welding quality and the working efficiency, and a construction process thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a riprap system jacket which innovation point lies in: the device comprises a jacket frame, a box beam structure and a bracket structure; the bracket structure is arranged on an integral structure formed by the jacket frame and the box-type beam structure;
the jacket frame comprises stern plates, port and starboard plates and end plate frames; the port and starboard plate sheets are vertically arranged on two sides of the stern plate sheet to form a U-shaped structure; the end plate frames are arranged at two ends of the U-shaped structure;
the box-type beam structure comprises a port board box-type structure, a starboard board box-type structure, a bottom box-type structure and a spare part structure; the port box-type structure and the starboard box-type structure are arranged in parallel, and the bottom box-type structure is vertically arranged at the bottom ends of the port box-type structure and the starboard box-type structure to connect the port box-type structure and the starboard box-type structure; the four spare part structures are respectively connected to two ends of the port board box-type structure and two ends of the starboard box-type structure;
the bracket structure comprises an upper bracket and a lower bracket; and the lower bracket is annularly arranged on the circumferential outer contour of the integral structure formed by the jacket frame and the box-type beam structure.
A construction process of a conduit frame of a riprap system has the innovation points that: the concrete construction steps are as follows: including S1: building a jacket frame; s2: constructing a box girder structure; s3: constructing a bracket structure; s4: integrally assembling;
s1: and (3) constructing a jacket framework:
s1.1: dividing the jacket frame into a stern plate, a port and starboard plate and an end plate frame; prefabricating the sheet body assembly on the jacket frame on a straight tool;
s1.2: on the middle assembly tool, the stern sheet is taken as a reference sheet, the middle assembly of the frame is carried out, and after the middle assembly is finished and before welding, a clamping horse is used for firmly welding the stern sheet and the middle assembly tool so as to prevent the sheet from being distorted in the welding process;
s2: constructing a box beam structure:
s2.1: dividing a jacket box-type beam structure into a port box-type structure, a starboard box-type structure, a bottom box-type structure and a spare part structure; prefabricating the parts of the box beam structure of the jacket on a jig frame;
s2.2: positioning the port board box type structure and the starboard box type structure according to the drawing requirements on an assembling station, and fixing by adopting a clamp horse; then positioning and hoisting the bottom box-type beam structure, and finally installing the spare part structure;
s3: and (3) constructing a bracket structure:
s3.1: dividing a bracket structure into an upper bracket and a lower bracket, wherein the upper bracket and the lower bracket are respectively preset into components for standby;
s4: and (3) integral assembly:
s4.1: assembling the jacket structure by taking the manufactured jacket frame as a reference; turning over and hoisting the jacket box-shaped beam structure to a jacket frame for positioning, welding and fixing by adopting an auxiliary support, and welding according to the welding requirement;
s4.2: and after the S4.1 procedure is completed, positioning and installing the lower bracket, and performing positioning welding on the upper bracket when the stone throwing system is assembled.
Further, the manufacturing requirements of the jacket frame plate in the S1.1 are as follows: the integral flatness error is less than or equal to 2mm, and the diagonal error is less than or equal to 2 mm.
Further, the middle group of the S1.2 middle catheter frame needs to satisfy the following requirements: the flatness error of the stern plate is less than or equal to 2mm, and the verticality error of the left and right board plates is less than or equal to 2 mm; after the completion of the middle group, the following requirements are met: the length error is +/-4 mm, the width error is +/-1 mm, and the space diagonal error is +/-2 mm.
Further, the jacket box beam structure in S2.1 needs to meet the following requirements in the assembly prefabrication process: reserving machining allowance of 40mm for all pin holes; the reserved machining allowance for plane machining is 4 mm; the verticality error is +/-1 mm; the length error of the box type structure on the port side and the starboard side is +/-3 mm; the center of the lug plate of the bottom box-type structure is allowed to have an error of +/-1 mm.
Further, the center distance between the port box-type structure and the starboard box-type structure in the S2 is controlled to be +/-2 mm; the verticality error of the bottom box-type structure is +/-1 mm, and the error of the center of the lug plate hole from the horizontal reference plane is +/-2 mm.
Further, the spare part structure in S2.1 controls the installation spacing of the wear-resisting plates within +/-3 mm; the error of verticality is +/-1 mm.
Furthermore, the distance error between the center of the lug hole of the pulley in the box-shaped beam structure in the S2.2 and the center of the trolley on the jacket is +/-2 mm, and the relative horizontal error between the pulley and the jacket is +/-1 mm and the vertical state verticality error.
Furthermore, the distance error between the upper plane of the bracket at the middle lower part of the S4.2 and the center of the trolley on the jacket is +/-1 mm, and the integral flatness error of the bracket at the periphery is +/-1 mm.
The invention has the advantages that:
1) the construction of the jacket of the riprap system comprises the following steps: manufacturing a frame, manufacturing a box beam, manufacturing a bracket, finally integrally assembling, and integrally machining; in each stage of the construction process of the riprap system jacket, the shrinkage allowance of welding and releasing and the reversible deformation are considered, prefabrication is carried out strictly according to components, and the control of the key size of assembly is enhanced; the sequence of positioning and welding strictly follows: the step-by-step installation is carried out according to the principle of from bottom to top and from inside to outside; the process has the advantages of convenient welding, high folding precision and capability of improving the welding quality and the working efficiency.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a jacket frame of a riprap system according to the invention.
Fig. 2 is a structural view of a strake plate of a jacket frame structure of a riprap system according to the present invention.
Fig. 3 is a structural view of a stern plate of the riprap system jacket according to the invention.
Fig. 4 is a perspective view of a box beam structure of a riprap system jacket of the present invention.
Fig. 5 is a schematic view of a positioning upper jig frame of a stern plate.
Fig. 6 is a schematic view of positioning and mounting of the side plates of the ship board.
Fig. 7 is a schematic view of a tire frame on a port and starboard box structure.
FIG. 8 is a schematic view of the alignment of the creel on the bottom box-type structure.
Fig. 9 is a schematic view of the installation of the parts.
Fig. 10 is a view of the creel-on-jacket installation.
Fig. 11 is a view of the installation of the box beam structure in cooperation with the jacket.
Figure 12 shows the lower corbel positioning installation.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
A riprap system jacket as shown in fig. 1 to 4, comprising a jacket frame 1, a box beam structure 2 and a corbel structure; the box-type beam structure 2 is embedded in the jacket frame 1, and the bracket structure is arranged on an integral structure formed by the jacket frame 1 and the box-type beam structure 2.
The jacket frame 1 comprises stern plates 11, port and starboard plates 12 and end plate frames; the port and starboard plate sheets 12 are vertically arranged on two sides of the stern plate sheet 11 to form a U-shaped structure; the end plate frames are arranged at two ends of the U-shaped structure.
The box-type beam structure 2 comprises a port box-type structure 21, a starboard box-type structure 22, a bottom box-type structure 23 and a spare part structure 24; the port box-type structure 21 and the starboard box-type structure 22 are arranged in parallel, and the bottom box-type structure 23 is vertically arranged at the bottom ends of the port box-type structure 21 and the starboard box-type structure 22 to connect the port box-type structure 21 and the starboard box-type structure 22; the spare part structures 24 are four and are respectively connected to the two ends of the port box-type structure 21 and the two ends of the starboard box-type structure 22.
The bracket structure 3 comprises an upper bracket and a lower bracket; the lower bracket is annularly arranged on the circumferential outer contour of the integral structure formed by the jacket frame 1 and the box-type beam structure 2.
As shown in fig. 5 to 12, a construction process of a riprap system jacket comprises the following concrete construction steps: including S1: building a jacket frame; s2: constructing a box girder structure; s3: constructing a bracket structure; s4: integrally assembling;
s1: and (3) constructing a jacket framework:
s1.1: dividing the jacket frame into a stern plate, a port and starboard plate and an end plate frame; prefabricating the sheet body assembly on the jacket frame on a straight tool; the manufacturing requirements of the jacket frame plate are as follows: the integral flatness error is less than or equal to 2mm, and the diagonal error is less than or equal to 2 mm.
S1.2: on the middle assembly tool, the stern sheet is taken as a reference sheet, the middle assembly of the frame is carried out, and after the middle assembly is finished and before welding, a clamping horse is used for firmly welding the stern sheet and the middle assembly tool so as to prevent the sheet from being distorted in the welding process; the middle group of the conduit frame needs to meet the following requirements: the flatness error of the stern plate is less than or equal to 2mm, and the verticality error of the left and right board plates is less than or equal to 2 mm; after the completion of the middle group, the following requirements are met: the length error is +/-4 mm, the width error is +/-1 mm, and the space diagonal error is +/-2 mm.
S2: constructing a box beam structure:
s2.1: dividing a jacket box-type beam structure into a port box-type structure, a starboard box-type structure, a bottom box-type structure and a spare part structure; prefabricating the parts of the box beam structure of the jacket on a jig frame; the jacket box beam structure needs to meet the following requirements in the assembly prefabrication process: reserving machining allowance of 40mm for all pin holes; the reserved machining allowance for plane machining is 4 mm; the verticality error is +/-1 mm; the length error of the box type structure on the port side and the starboard side is +/-3 mm; the allowable error of the center of the ear plate of the bottom box-type structure is +/-1 mm; the mounting space of the wear-resisting plates is controlled within +/-3 mm by the spare part structure; the error of verticality is +/-1 mm.
S2.2: positioning the port board box type structure and the starboard box type structure according to the drawing requirements on an assembling station, and fixing by adopting a clamp horse; then positioning and hoisting the bottom box-type beam structure, and finally installing the spare part structure; the center distance between the port box type structure and the starboard box type structure is controlled to be +/-2 mm; the verticality error of the bottom box-type structure is +/-1 mm, and the error of the distance between the center of the lug plate hole and the horizontal datum plane is +/-2 mm; the distance error between the center of the lug hole of the pulley in the box-shaped beam structure and the center of the trolley on the jacket is +/-2 mm, the relative horizontal error between the pulley and the jacket is +/-1 mm, and the vertical state verticality error is achieved.
S3: and (3) constructing a bracket structure:
s3.1: dividing a bracket structure into an upper bracket and a lower bracket, wherein the upper bracket and the lower bracket are respectively preset into components for standby; the distance error between the upper plane of the lower bracket and the center of the trolley on the jacket is +/-1 mm, and the integral flatness error of the surrounding brackets is +/-1 mm.
S4: and (3) integral assembly:
s4.1: assembling the jacket structure by taking the manufactured jacket frame as a reference; and turning over and hoisting the jacket box-shaped beam structure to the jacket frame for positioning, welding and fixing by adopting an auxiliary support, and welding according to the welding requirement.
S4.2: and after the S4.1 procedure is completed, positioning and installing the lower bracket, and performing positioning welding on the upper bracket when the stone throwing system is assembled.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A riprap system jacket which characterized in that: the device comprises a jacket frame, a box beam structure and a bracket structure; the bracket structure is arranged on an integral structure formed by the jacket frame and the box-type beam structure;
the jacket frame comprises stern plates, port and starboard plates and end plate frames; the port and starboard plate sheets are vertically arranged on two sides of the stern plate sheet to form a U-shaped structure; the end plate frames are arranged at two ends of the U-shaped structure;
the box-type beam structure comprises a port board box-type structure, a starboard board box-type structure, a bottom box-type structure and a spare part structure; the port box-type structure and the starboard box-type structure are arranged in parallel, and the bottom box-type structure is vertically arranged at the bottom ends of the port box-type structure and the starboard box-type structure to connect the port box-type structure and the starboard box-type structure; the four spare part structures are respectively connected to two ends of the port board box-type structure and two ends of the starboard box-type structure;
the bracket structure comprises an upper bracket and a lower bracket; and the lower bracket is annularly arranged on the circumferential outer contour of the integral structure formed by the jacket frame and the box-type beam structure.
2. A process of constructing a jacket of a riprap system of claim 1, wherein: the concrete construction steps are as follows: including S1: building a jacket frame; s2: constructing a box girder structure; s3: constructing a bracket structure; s4: integrally assembling;
s1: and (3) constructing a jacket framework:
s1.1: dividing the jacket frame into a stern plate, a port and starboard plate and an end plate frame; prefabricating the sheet body assembly on the jacket frame on a straight tool;
s1.2: on the middle assembly tool, the stern sheet is taken as a reference sheet, the middle assembly of the frame is carried out, and after the middle assembly is finished and before welding, a clamping horse is used for firmly welding the stern sheet and the middle assembly tool so as to prevent the sheet from being distorted in the welding process;
s2: constructing a box beam structure:
s2.1: dividing a jacket box-type beam structure into a port box-type structure, a starboard box-type structure, a bottom box-type structure and a spare part structure; prefabricating the parts of the box beam structure of the jacket on a jig frame;
s2.2: positioning the port board box type structure and the starboard box type structure according to the drawing requirements on an assembling station, and fixing by adopting a clamp horse; then positioning and hoisting the bottom box-type beam structure, and finally installing the spare part structure;
s3: and (3) constructing a bracket structure:
s3.1: dividing a bracket structure into an upper bracket and a lower bracket, wherein the upper bracket and the lower bracket are respectively preset into components for standby;
s4: and (3) integral assembly:
s4.1: assembling the jacket structure by taking the manufactured jacket frame as a reference; turning over and hoisting the jacket box-shaped beam structure to a jacket frame for positioning, welding and fixing by adopting an auxiliary support, and welding according to the welding requirement;
s4.2: and after the S4.1 procedure is completed, positioning and installing the lower bracket, and performing positioning welding on the upper bracket when the stone throwing system is assembled.
3. A process of construction of a riprap system jacket according to claim 2, wherein: the manufacturing requirements of the jacket frame plate in the S1.1 are as follows: the integral flatness error is less than or equal to 2mm, and the diagonal error is less than or equal to 2 mm.
4. A process of construction of a riprap system jacket according to claim 2, wherein: the S1.2 middle catheter frame needs to meet the following requirements when being assembled in a middle group: the flatness error of the stern plate is less than or equal to 2mm, and the verticality error of the left and right board plates is less than or equal to 2 mm; after the completion of the middle group, the following requirements are met: the length error is +/-4 mm, the width error is +/-1 mm, and the space diagonal error is +/-2 mm.
5. A process of construction of a riprap system jacket according to claim 2, wherein: the jacket box beam structure in the S2.1 needs to meet the following requirements in the assembly prefabrication process: reserving machining allowance of 40mm for all pin holes; the reserved machining allowance for plane machining is 4 mm; the verticality error is +/-1 mm; the length error of the box type structure on the port side and the starboard side is +/-3 mm; the center of the lug plate of the bottom box-type structure is allowed to have an error of +/-1 mm.
6. A process of construction of a riprap system jacket according to claim 2, wherein: the center distance between the middle port box type structure and the middle starboard box type structure of the S2.1 is controlled to be +/-2 mm; the verticality error of the bottom box-type structure is +/-1 mm, and the error of the center of the lug plate hole from the horizontal reference plane is +/-2 mm.
7. A process of construction of a riprap system jacket according to claim 2, wherein: in the S2.1, the mounting space of the wear-resisting plates is controlled within +/-3 mm by the spare part structure; the error of verticality is +/-1 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910759098.1A CN110512609B (en) | 2019-08-16 | 2019-08-16 | Riprap system jacket and construction process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910759098.1A CN110512609B (en) | 2019-08-16 | 2019-08-16 | Riprap system jacket and construction process thereof |
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| CN110512609A CN110512609A (en) | 2019-11-29 |
| CN110512609B true CN110512609B (en) | 2021-05-28 |
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| CN115158584A (en) * | 2022-07-26 | 2022-10-11 | 上海江南长兴造船有限责任公司 | Method for quickly installing support bracket on LNG ship stern shaft section and stern shaft section |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204056240U (en) * | 2014-05-21 | 2014-12-31 | 中铁第五勘察设计院集团有限公司 | Buoyancy tank pile foundation support table |
| CN204370466U (en) * | 2014-12-23 | 2015-06-03 | 广州华申建设工程管理有限公司 | A kind of jacket offshore wind turbine foundation with bracket |
| CN204370469U (en) * | 2014-12-24 | 2015-06-03 | 广州华申建设工程管理有限公司 | A kind of drilled pile long leg jacket offshore wind turbine foundation |
| WO2016124263A1 (en) * | 2015-02-06 | 2016-08-11 | Maritime Offshore Group Gmbh | Offshore foundation structure with gangway and improved boat landing |
| JP2018178662A (en) * | 2017-04-21 | 2018-11-15 | 東京電力ホールディングス株式会社 | Construction method for replacement of steel tower |
| CN209025085U (en) * | 2018-09-14 | 2019-06-25 | 江苏华西村海洋工程服务有限公司 | Jacket pile pipe pitching pile combined console |
-
2019
- 2019-08-16 CN CN201910759098.1A patent/CN110512609B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204056240U (en) * | 2014-05-21 | 2014-12-31 | 中铁第五勘察设计院集团有限公司 | Buoyancy tank pile foundation support table |
| CN204370466U (en) * | 2014-12-23 | 2015-06-03 | 广州华申建设工程管理有限公司 | A kind of jacket offshore wind turbine foundation with bracket |
| CN204370469U (en) * | 2014-12-24 | 2015-06-03 | 广州华申建设工程管理有限公司 | A kind of drilled pile long leg jacket offshore wind turbine foundation |
| WO2016124263A1 (en) * | 2015-02-06 | 2016-08-11 | Maritime Offshore Group Gmbh | Offshore foundation structure with gangway and improved boat landing |
| JP2018178662A (en) * | 2017-04-21 | 2018-11-15 | 東京電力ホールディングス株式会社 | Construction method for replacement of steel tower |
| CN209025085U (en) * | 2018-09-14 | 2019-06-25 | 江苏华西村海洋工程服务有限公司 | Jacket pile pipe pitching pile combined console |
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