CN113136876A - Construction method of pipe trench - Google Patents
Construction method of pipe trench Download PDFInfo
- Publication number
- CN113136876A CN113136876A CN202110294492.XA CN202110294492A CN113136876A CN 113136876 A CN113136876 A CN 113136876A CN 202110294492 A CN202110294492 A CN 202110294492A CN 113136876 A CN113136876 A CN 113136876A
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- Prior art keywords
- trench
- pipe trench
- pipe
- reinforcement cage
- brick
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- 238000010276 construction Methods 0.000 title claims abstract description 57
- 239000011449 brick Substances 0.000 claims abstract description 53
- 238000000465 moulding Methods 0.000 claims abstract description 44
- 230000002787 reinforcement Effects 0.000 claims abstract description 41
- 239000002689 soil Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 9
- 238000009415 formwork Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 210000002219 extraembryonic membrane Anatomy 0.000 description 4
- 210000004379 membrane Anatomy 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
- E02D17/083—Shoring struts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a construction method of a pipe trench, which comprises the following steps: excavating earthwork at a position where a pipe ditch is to be formed to form a groove, and pouring concrete at the bottom of the groove to form a cushion layer; building and forming two opposite brick moulding beds on the top surfaces of the cushion layers, wherein a set distance is formed between the two brick moulding beds and the two brick moulding beds are arranged along the length direction of the groove, and the tops of the brick moulding beds are flush with the ground; backfilling the soil between the brick moulding bed and the side wall of the groove; binding a reinforcement cage between the two brick moulding beds, and attaching the reinforcement cage to build a template; concrete is poured between the brick moulding bed and the template and on the top of the ground, so that a pipe ditch with a U-shaped section is formed between the template and the brick moulding bed, the reinforcement cage is embedded in the pipe ditch, and a bottom plate is formed on the top of the ground. The invention solves the technical problems of difficult pipe ditch backfill and high cost, and improves the construction efficiency and the construction quality of the pipe ditch.
Description
Technical Field
The invention relates to the technical field of pipe ditch construction, in particular to a pipe ditch construction method.
Background
Along with the development of society and engineering technology, more and more large-scale buildings with ultra-large volume come into existence, pipe ditches are more and more used in engineering, and in the traditional pipe ditch construction, in order to stabilize the templates of the pipe ditches and prevent soil materials from collapsing when the pipe ditches are formed by pouring concrete, large-area earthwork excavation is needed, so that the amount of backfilled soil materials after the pipe ditch construction is large, and time and labor are consumed; in traditional trench work progress, because soil layer environment's difference, the roughness and the degree of depth of trench are difficult to control, and concreting forms the trench in-process, and the template receives the influence of the soil material that sinks to produce and warp, causes trench shaping back lateral wall thickness to differ, and the crooked scheduling problem of trench lateral wall leads to the trench to need doing over again, the extravagant cost.
Disclosure of Invention
In view of the above situation, the invention provides a pipe trench construction method, which solves the technical problems of difficult backfilling and poor pipe trench forming quality in pipe trench construction, improves the pipe trench construction efficiency, and saves the construction cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
a construction method of a pipe trench comprises the following steps:
excavating earthwork at a position where the pipe trench is to be formed to form a trench, and pouring concrete at the bottom of the trench to form a cushion layer;
building and forming two opposite brick moulding beds on the top surfaces of the cushion layers, wherein a set distance is formed between the two brick moulding beds and the two brick moulding beds are arranged along the length direction of the groove, and the tops of the brick moulding beds are flush with the ground;
backfilling earth materials between the brick moulding bed film and the side wall of the groove;
binding a reinforcement cage between the two brick bed films, and attaching the reinforcement cage to a construction template;
concrete is integrally poured between the brick molding bed and the template and on the top of the ground so as to form the pipe trench with a U-shaped section between the template and the brick molding bed, the reinforcement cage is embedded in the pipe trench, and a bottom plate is formed on the top of the ground.
The construction method of the pipe trench is further improved in that the excavation of earth to form the trench further comprises: drawing a side line at the position of the ground corresponding to the pipe trench to be formed, and carrying out downward slope excavation at the side line to form the groove with the trapezoidal section.
The construction method of the pipe trench is further improved in that the vertical section of the reinforcement cage is U-shaped, and the template is attached to the inner wall of the reinforcement cage and arranged opposite to the brick moulding bed.
The construction method of the pipe trench is further improved in that the method further comprises the following steps: and arranging a top support part between the two opposite templates so that the templates are attached to the reinforcement cage.
The construction method of the pipe ditch is further improved in that the top support part comprises a sleeve and a screw rod screwed with the sleeve; and the length of the overlapped part of the sleeve and the screw is changed by screwing the screw, so that the two ends of the top support part are abutted against the template.
The construction method of the pipe trench is further improved in that battens are filled between the top support piece and the template.
The construction method of the pipe trench is further improved in that the set interval is equal to the width of the pipe trench.
The construction method of the pipe trench is further improved in that a plurality of grooves are arranged at intervals.
The construction method of the pipe trench is further improved in that the top of the backfill soil is flush with the top of the brick moulding bed.
According to the construction method of the pipe trench, the cushion layer is poured at the bottom of the trench in advance, and the flatness and the depth of the cushion layer are controlled, so that the levelness of the reinforcement cage of the pipe trench is conveniently controlled subsequently, the construction of a template is convenient, and the operation avoids the problem that the foundation is easily damaged when the reinforcement cage is directly bound on the tamped foundation in the traditional technology, so that the levelness of the reinforcement cage is influenced, and the subsequent forming quality of the pipe trench is prevented from being influenced; in addition, the brick moulding bed is arranged on the cushion layer, so that the influence of earthwork collapse or falling of earth materials on the construction of the pipe trench is avoided in the construction process of the pipe trench, and the brick moulding bed can also position the reinforcement cage, so that the construction efficiency and the construction quality are improved.
Drawings
Fig. 1 is a side sectional view of concrete to be cast in the method for constructing a pipe trench according to the present invention.
Fig. 2 is a side view of the pipe trench after the completion of the cast of the cushion layer in the construction method of the pipe trench according to the present invention.
FIG. 3 is a side view of the pipe trench after the completion of the laying of the green sheets.
Fig. 4 is a side sectional view of the pipe trench and the floor after the pouring is completed in the pipe trench construction method according to the present invention.
FIG. 5 is a plan view of the pipe trench after completion of the construction according to the method of the present invention.
The correspondence of reference numerals to components is as follows: the concrete floor tile comprises earthwork 1, a bottom plate 11, a groove 2, a cushion layer 21, a pipe ditch 22, a brick moulding bed 3, a template 4, a batten 41, a steel pipe 42, a reinforcing rib 43, a top support 5, a screw 51 and a sleeve 52.
Detailed Description
To facilitate an understanding of the present invention, the following description is made in conjunction with the accompanying drawings and examples.
Referring to fig. 1 to 3, the present invention provides a pipe trench construction method, including the following steps: excavating earthwork 1 at a position where a pipe trench 22 is to be formed to form a trench 2, and pouring concrete at the bottom of the trench 2 to form a cushion layer 21; two opposite brick moulding beds 3 are formed on the top surface of the cushion layer 21 in a building mode, a set distance is reserved between the two brick moulding beds 3 and arranged along the length direction of the groove 2, and the tops of the brick moulding beds 3 are flush with the ground; backfilling the soil between the brick moulding bed film 3 and the side wall of the groove 2; binding a reinforcement cage between the two brick moulding beds 3, and attaching the reinforcement cage to build a template 4; concrete is poured between the brick moulding bed 3 and the template 4 and on the top of the ground to form a pipe ditch 22 with a U-shaped section between the template 4 and the brick moulding bed 3, a reinforcement cage is embedded in the pipe ditch 22, and a bottom plate 11 is formed on the top of the ground.
According to the construction method of the pipe trench, the earthwork trench 2 is firstly excavated downwards, an operation foundation is provided for the subsequent construction of the pipe trench 22, the cushion layer 21 is poured at the bottom of the trench 2, and the bottom of the trench 2 is further hardened, so that the construction of the reinforcement cage of the pipe trench 22 is facilitated, the damage of the reinforcement to the bottom of the trench 2 when the reinforcement cage is directly constructed is prevented, the construction quality of the pipe trench 22 is influenced, in addition, the levelness control is performed on the bottom of the trench 2 in advance, so that the levelness adjustment while the reinforcement cage is constructed in the traditional construction is avoided, and the construction speed is improved; relative the brick fetal membrane 3 of establishing on bed course 21, prevented the soil material landing of earthwork 1 to cause the influence to the construction of trench 22, these two brick fetal membranes 3 provide the benchmark in the reinforcement in addition, and this brick fetal membrane 3 can be as the template that is close to 2 lateral walls of slot, has solved the problem that the template that is close to the slot lateral part is difficult to the location in traditional construction.
Preferably, the set spacing is equal to the width of the trench 22 and the top of the backfill is flush with the top of the membrane 3.
As shown in fig. 2, a preferred embodiment of the pipe trench construction method of the present invention further includes: and drawing a side line at the position corresponding to the pipe ditch 22 to be formed on the ground, and downwards sloping and excavating at the side line to form the groove 2 with a trapezoidal section.
Preferably, as shown in fig. 1, the bottom plate 11 is formed on the upper portion of the ground outside the pipe trench, and the bottom plate 11 hardens the ground on both sides of the pipe trench 22, so as to further prevent the soil on both sides of the pipe trench from falling into the pipe trench, which affects the laying of the subsequent pipes, and also prevent the soil on both sides of the pipe trench from collapsing or soil from running off, which causes the subsequent pipe trench 22 to incline, which affects the construction quality of the pipe trench 22.
Preferably, a plan is drawn according to the position of the pipeline to be laid, and the edges of the trench 2 are drawn on the ground in lime according to the plan.
Further, when the cushion layer 21 is formed by pouring, the method further includes: plain soil is paved on the bottom surface of the groove 2, the plain soil is tamped, concrete is poured on the top of the plain soil to form a cushion layer 21, and the plain soil can effectively improve the original soil quality of the earthwork 1, so that the construction quality of the pipe trench 22 is ensured to a greater extent, and the influence of loose soil quality and large soil particles on the flatness of the formed pipe trench 22 and the collapse of the pipe trench are prevented.
Specifically, the vertical cross-section of steel reinforcement cage is the U type, laminates template 4 in steel reinforcement cage's inner wall and sets up with brick fetal membrane 3 relatively, and the template is not pasted to steel reinforcement cage's inboard bottom, and the condition of pouring of the observation concrete that this kind of mode was convenient for implement prevents because steel reinforcement cage's bottom overlength, and the concrete has not been paved the bottom and has hardened, and the bottom leads to doing over again owing to being difficult to detect.
Further, as shown in fig. 1, the method further includes: and a top support part 5 is arranged between the two opposite templates 4, so that the templates 4 are attached to the reinforcement cage.
Specifically, the top support 5 includes a sleeve 52 and a screw 51 screwed to the sleeve 52, and the length of the overlapped portion of the sleeve 52 and the screw 51 is changed by screwing the screw 51, so that the two ends of the top support 5 abut against the formwork 4.
Preferably, the battens 41 are filled between the top support 5 and the formwork 4; after the formwork 4 is attached to the reinforcement cage 22, a plurality of steel pipes 42 are fixed to the formwork 4 through battens 41 in the height direction of the formwork, and then reinforcing ribs 43 made of double steel pipes are fixed to the steel pipes 42 in the horizontal direction.
Preferably, the top support 5 abuts against the reinforcing ribs 43; the U-shaped support 5 is pressed between the two templates which are close to each other, the end of the screw 51 far away from the sleeve 52 is pressed against the template on one side, and then the sleeve 52 is screwed, so that the end of the sleeve 52 far away from the screw 51 moves in the direction of approaching the other template, and the U-shaped support 5 is pressed between the templates.
Preferably, as shown in fig. 2, the top surface of the cushion layer 21 is horizontal, the width of the cushion layer 21 is larger than the width of the pipe trench 22, the width of the poured cushion layer 21 is 1600mm, and the height is 100 mm.
Preferably, as shown in fig. 3, the distance between two brick membranes 3 is equal to the width of the pipe trench 22, the building height of the brick membranes 3 is 950mm, and the brick membranes 3 are built by a plurality of autoclaved aerated blocks, wherein the size of the autoclaved aerated blocks is generally 600mm x 200mm x 250mm (length x width x height), and the width, height and length of the autoclaved aerated blocks can be properly adjusted according to the size of the pipe trench and the production condition of a manufacturer.
Preferably, the soil is the soil when the trench 2 is dug, and the operation can prevent the repeated soil transportation and improve the construction efficiency.
Preferably, as shown in fig. 4, the trench 22 has a trench sidewall thickness of 200mm and a trench bottom thickness of 1050mm, a trench bottom thickness of 300mm, a trench sidewall spacing of 800mm, and a bottom 11 thickness of 300mm and a trench length of 2000 mm.
Specifically, as shown in fig. 5, a plurality of the pipe trenches 22 are arranged at intervals, and the bottom plate 11 connects two adjacent pipe trenches 22.
The concrete implementation case of the construction method of the pipe trench is that the side line of the trench 2 is drawn on the ground by lime, the trench 2 with a trapezoidal section is formed by downward sloping and excavating earthwork in the trench 2, plain soil is laid and tamped at the bottom of the trench, concrete is poured at the top of the plain soil to form a cushion layer 21, the top surface of the cushion layer 21 is opposite to a masonry brick moulding bed 3, a set distance is reserved between the two brick moulding beds 3 and is arranged along the length direction of the trench 2, and the top of the brick moulding bed 3 is flush with the top of the trench 2; backfilling the soil between the brick moulding bed film 3 and the side wall of the groove 2, wherein the top of the soil is flush with the top of the brick moulding bed film 3; binding a reinforcement cage between the two brick moulding bed films 3, attaching the reinforcement cage to a reinforcement cage building template 4, and abutting against the template 4 through a jacking piece 5 so as to attach the template 4 to the reinforcement cage; concrete is poured on the tops of the grooves 2 and the cushion layer 21, so that pipe ditches 22 with U-shaped cross sections are formed between the templates 4 and the brick moulding beds 3, reinforcement cages are embedded in the pipe ditches 22, and bottom plates 11 are formed on the tops of the ground.
The construction method of the pipe trench solves the technical problems of difficult backfilling and high cost of the pipe trench, and improves the construction efficiency and the construction quality of the pipe trench; in addition, the cushion layer 21 is poured before the bottom of the trench 2, and the levelness of the cushion layer 21 is controlled, so that the installation accuracy of the reinforcement cage 22 is improved, and the construction quality of the pipe trench is improved; according to the invention, the brick moulding bed 3 is arranged on the cushion layer, so that the influence of earthwork on the side wall of the pipe trench on the construction of the pipe trench due to earthwork collapse or soil material slip in the construction process of the pipe trench is prevented, and in addition, the brick moulding bed can also effectively improve the efficiency of binding the reinforcement cage, and is convenient for positioning the reinforcement cage, thereby improving the construction efficiency and the construction quality.
While the present invention has been described in detail and with reference to the accompanying drawings and examples, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A construction method of a pipe trench is characterized by comprising the following steps:
excavating earthwork at a position where the pipe trench is to be formed to form a trench, and pouring concrete at the bottom of the trench to form a cushion layer;
building and forming two opposite brick moulding beds on the top surfaces of the cushion layers, wherein a set distance is formed between the two brick moulding beds and the two brick moulding beds are arranged along the length direction of the groove, and the tops of the brick moulding beds are flush with the ground;
backfilling earth materials between the brick moulding bed film and the side wall of the groove;
binding a reinforcement cage between the two brick bed films, and attaching the reinforcement cage to a construction template;
concrete is integrally poured between the brick molding bed and the template and on the top of the ground, so that the pipe trench with the U-shaped section is formed between the template and the brick molding bed, the reinforcement cage is embedded in the pipe trench, and a bottom plate is formed on the top of the ground.
2. The method of constructing a pipe trench according to claim 1, wherein excavating earth to form the trench further comprises:
drawing a side line at the position of the ground corresponding to the pipe trench to be formed, and carrying out downward slope excavation at the side line to form the groove with the trapezoidal section.
3. The pipe trench construction method according to claim 1, wherein the step of casting the cushion layer further comprises:
and paving plain soil on the bottom surface of the groove, tamping the plain soil, and pouring concrete on the top of the plain soil to form the cushion layer.
4. The method for constructing a pipe trench as claimed in claim 1, wherein the reinforcement cage has a U-shaped vertical cross-section, and the form is attached to the inner wall of the reinforcement cage and disposed opposite to the brick molding.
5. The method of constructing a pipe trench according to claim 4, further comprising:
and arranging a top support part between the two opposite templates so that the templates are attached to the reinforcement cage.
6. The method as claimed in claim 5, wherein the top supporting member comprises a sleeve and a screw engaged with the sleeve;
and the length of the overlapped part of the sleeve and the screw is changed by screwing the screw, so that the two ends of the top support part are abutted against the template.
7. The method of constructing a pipe trench according to claim 5, wherein a batten is filled between the top-supporting member and the formwork.
8. The method of constructing a pipe trench according to claim 1, wherein the set pitch is equal to a width of the pipe trench.
9. The method of constructing a pipe trench according to claim 1, wherein the trench is provided with a plurality of grooves at intervals.
10. The method of constructing a trench as claimed in claim 1, wherein the top of the backfill material is flush with the top of the membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110294492.XA CN113136876A (en) | 2021-03-19 | 2021-03-19 | Construction method of pipe trench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110294492.XA CN113136876A (en) | 2021-03-19 | 2021-03-19 | Construction method of pipe trench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113136876A true CN113136876A (en) | 2021-07-20 |
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ID=76811518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110294492.XA Pending CN113136876A (en) | 2021-03-19 | 2021-03-19 | Construction method of pipe trench |
Country Status (1)
| Country | Link |
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| CN (1) | CN113136876A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267557A (en) * | 2020-10-20 | 2021-01-26 | 中国十九冶集团有限公司 | Construction method of underground baffle plate supporting structure |
| CN113931200A (en) * | 2021-10-28 | 2022-01-14 | 中国十七冶集团有限公司 | Construction device for construction site groove and using method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289866A (en) * | 2007-04-16 | 2008-10-22 | 上海市第七建筑有限公司 | Construction method for precasting concrete moulding bed in local pit of base pit engineering under soft foundation |
| CN103290871A (en) * | 2013-06-26 | 2013-09-11 | 中建六局土木工程有限公司 | Guide ditch construction method |
| CN204531392U (en) * | 2015-01-21 | 2015-08-05 | 中兴建设有限公司 | A kind of fast disassembly type template supporting device for beam slab span centre |
| CN211447004U (en) * | 2019-11-08 | 2020-09-08 | 中国建筑第八工程局有限公司 | Reinforced GRC plate and pipe ditch foundation formwork system combining same |
-
2021
- 2021-03-19 CN CN202110294492.XA patent/CN113136876A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289866A (en) * | 2007-04-16 | 2008-10-22 | 上海市第七建筑有限公司 | Construction method for precasting concrete moulding bed in local pit of base pit engineering under soft foundation |
| CN103290871A (en) * | 2013-06-26 | 2013-09-11 | 中建六局土木工程有限公司 | Guide ditch construction method |
| CN204531392U (en) * | 2015-01-21 | 2015-08-05 | 中兴建设有限公司 | A kind of fast disassembly type template supporting device for beam slab span centre |
| CN211447004U (en) * | 2019-11-08 | 2020-09-08 | 中国建筑第八工程局有限公司 | Reinforced GRC plate and pipe ditch foundation formwork system combining same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267557A (en) * | 2020-10-20 | 2021-01-26 | 中国十九冶集团有限公司 | Construction method of underground baffle plate supporting structure |
| CN112267557B (en) * | 2020-10-20 | 2022-08-09 | 中国十九冶集团有限公司 | Construction method of underground baffle plate supporting structure |
| CN113931200A (en) * | 2021-10-28 | 2022-01-14 | 中国十七冶集团有限公司 | Construction device for construction site groove and using method |
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Application publication date: 20210720 |