CN204940330U - A kind of pipeline foundation - Google Patents
A kind of pipeline foundation Download PDFInfo
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- CN204940330U CN204940330U CN201520662490.1U CN201520662490U CN204940330U CN 204940330 U CN204940330 U CN 204940330U CN 201520662490 U CN201520662490 U CN 201520662490U CN 204940330 U CN204940330 U CN 204940330U
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- base
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- chute
- shaped seat
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Abstract
The utility model relates to pipeline construction equipment technical field, particularly relates to a kind of pipeline foundation; Comprise foot mat, the flat base of precast concrete, top bed course and pipeline, wherein, foot mat comprises one slag blanket, and top bed course comprises a hardcore bed and a medium-sand seam; The flat base of precast concrete comprises prefabricated base, symmetrically arranged two arc-shaped seats and two limit bases, the top of base is provided with the chute of two ends perforate, the top of arc-shaped seat is provided with cambered surface, and the bottom of arc-shaped seat relative sliding and two cambered surfaces in chute are oppositely arranged; Base is provided with the anchoring piece for spacing arc-shaped seat relative sliding position, the middle part of base and two ends are also provided with the fixture for being fixed on by base on foot mat, are provided with interlaced transverse reinforcement and longitudinal reinforcement in base; Pipeline foundation of the present utility model and construction method thereof, can directly in-site installation, save flat base curing time, easy construction safety, execution conditions are not high to environmental requirement, the duration is not long.
Description
Technical field
The utility model relates to pipeline construction equipment technical field, particularly relates to a kind of pipeline foundation.
Background technology
Pipeline foundation is a requisite part in pipe installation process, and in China, gutter, blow-off pipe caliber mostly are 0.2-2 rice, and wherein maximum caliber can reach 3 meters, and minimum pipe can reach 0.1 meter, and material is mainly concrete reinforced pipe and pvc pipe.Multiselect concrete reinforced pipe in current engineering, gutter, blow-off pipe are before burying underground, generally need lay the C15 plain concrete cushion layer of 100 millimeters thick or the hardcore bed of 200-300 millimeters thick bottom the pipe trench met design requirement, after bed course intensity reaches installation requirement, assembling reinforcement on bed course, installation form, flat base made by joints cement concrete, and the flat base of precast concrete need carry out maintenance, after its intensity reaches 85%, can stripping, draining, blow-off line are installed.
As can be seen here, the flat base of existing concrete needs first to lay bed course before installing, and then the flat base of cast-in-site, bed course intensity needs to reach some strength after laying, usually, need wait for more than three hours, and need maintenance after the cast-in-place note of flat base, curing time is usually more than three days, extend the Pipe installing duration, waste manpower and materials.
In addition, because different engineering geological condition is different, soft foundation, underground water or other reasons can cause pipe trench to need precipitation process usually, and flat base construction risk is larger.
Above-mentioned existing concrete duct basis, in use, still has inconvenience and defect, is urgently further improved.How to found a kind of easy construction, can directly pipe laying, safe and reliable new precast concrete pipeline basis, tool is of great significance.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model be to provide a kind of can directly in-site installation, save the pipeline foundation that flat base curing time, easy construction safety, execution conditions are not high to environmental requirement, the duration is not grown.
The utility model first aspect provides a kind of pipeline foundation, comprise foot mat, the flat base of precast concrete, top bed course and the pipeline laid successively from low to high, wherein, described foot mat comprises one slag blanket, and described top bed course comprises a hardcore bed and a medium-sand seam;
The flat base of described precast concrete comprises prefabricated base, symmetrically arranged two arc-shaped seats and two limit bases, the top of described base is provided with the chute of two ends perforate, the top of described arc-shaped seat is provided with cambered surface, and the bottom of described arc-shaped seat relative sliding and two cambered surfaces in described chute are oppositely arranged;
Described base is provided with the anchoring piece for spacing described arc-shaped seat relative sliding position, the middle part of described base and two ends are also provided with the fixture for being fixed on by base on foot mat, are provided with interlaced transverse reinforcement and longitudinal reinforcement in described base.
Further, the bottom width of described chute is greater than top width.
Further, described chute comprises the sliding tray being positioned at middle part and the stopper slot being positioned at sliding tray two bottom sides.
Further, described transverse reinforcement to be embedded in base and to parallel with chute direction, and described transverse reinforcement is multiple; Described longitudinal reinforcement is U-shaped and is weldingly fixed on the transverse reinforcement of base both sides.
Further, the end face of described road slag blanket is embedded with direction earthwork grille.
Further, during bearing capacity of foundation soil fak >=80kPa, the thickness of described road slag blanket is less than or equal to 5cm; During bearing capacity of foundation soil 55≤fak < 80kPa, the thickness of described road slag blanket is greater than 5cm and is less than or equal to 50cm; During bearing capacity of foundation soil fak < 55kPa, the thickness of described road slag blanket is greater than 50cm.
Further, the thickness of described hardcore bed and medium-sand seam is not less than 10cm and 5cm respectively.
The utility model second aspect provides a kind of construction method of above-mentioned pipeline foundation, comprises following step:
S1, size according to pipeline to be installed, selected the adaptive flat base of precast concrete, be slidably connected on base by arc-shaped seat, and fixed by anchoring piece;
S2, slope excavation pit can be put to projected depth, foundation ditch inspect for acceptance qualified after, lay foot mat;
S3, flat for the precast concrete made base is positioned on the foot mat in pipe trench;
S4, by fixture, base is fixed on foot mat;
S5, on the flat base of precast concrete lay top bed course;
S6, by Pipe installing on the flat base of precast concrete, more namely backfill completes the installation work of pipeline foundation in tube seat.
Further, described step S2 comprises the detection to bearing capacity bottom foundation ditch, and during bearing capacity of foundation soil fak >=80kPa, the thickness of described road slag blanket is less than or equal to 5cm; During bearing capacity of foundation soil 55≤fak < 80kPa, the thickness of described road slag blanket is greater than 5cm and is less than or equal to 50cm; During bearing capacity of foundation soil fak < 55kPa, the thickness of described road slag blanket is greater than 50cm.
Further, in described step S2, as bearing capacity of foundation soil fak < 55kPa, bury direction earthwork grille underground at the end face of road slag blanket.
By such scheme, the utility model at least has the following advantages: can directly in-site installation, save flat base curing time, easy construction safety, execution conditions are not high to environmental requirement, the duration is not long.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of manual, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the structural representation of the flat base of precast concrete in the utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
Embodiment 1
See Fig. 1 and Fig. 2, a kind of pipeline foundation of the utility model one preferred embodiment, comprises foot mat 1, the flat base 2 of precast concrete, top bed course 3 and the pipeline 4 laid successively from low to high, wherein, foot mat 1 comprises one slag blanket, and top bed course 3 comprises hardcore bed 31 and a medium-sand seam 32; The flat base of precast concrete 2 comprises prefabricated base 21, symmetrically arranged two arc-shaped seats 22 and two limit bases 23, the top of base 21 is provided with the chute 24 of two ends perforate, the top of arc-shaped seat 22 is provided with cambered surface, and the bottom of arc-shaped seat relative sliding and two cambered surfaces in chute 24 are oppositely arranged; Base 21 is provided with the anchoring piece 25 for spacing arc-shaped seat relative sliding position, the middle part of base 21 and two ends are also provided with the fixture 26 for being fixed on by base on foot mat, are provided with interlaced transverse reinforcement 27 and longitudinal reinforcement 28 in base 21.
Operating principle of the present utility model is: by arranging the foot mat of different-thickness, adapts to the foundation ditch ground of different bearer power, and as bearing capacity of foundation soil fak >=80kPa, the thickness of road slag blanket is less than or equal to 5cm; During bearing capacity of foundation soil 55≤fak < 80kPa, the thickness of road slag blanket is greater than 5cm and is less than or equal to 50cm; During bearing capacity of foundation soil fak < 55kPa, the thickness of road slag blanket is greater than 50cm; Meanwhile, according to the difference of bearing capacity, the thickness of corresponding adjustment hardcore bed and medium-sand seam, but should 10cm and 5cm be not less than respectively.Road slag blanket is arranged side by side the flat base of multiple precast concrete along piping laying direction, plays the effect of firm ground.Because the size of pipeline is different, the size of the flat base of precast concrete becomes a larger difficult problem, and plays stable, to level up effect base by arranging in the utility model, and arranges slidably arc-shaped seat thereon and can address this problem; With a pair arc-shaped seat, by regulating spacing each other, the Pipe installing of sizes can be adapted to, when line size is larger, tune up the spacing of arc-shaped seat, when line size is less, the spacing of the arc-shaped seat that furthers; Being fixed the position of arc-shaped seat by anchoring piece, by contact top, limit base further face pressure arc-shaped seat, and between limit base and foundation pit side-wall, then realizing fixing limit base by filling hardcore bed.
In order to prevent arc-shaped seat from rolling, the bottom width of chute is greater than top width, mutually pushes up pressure, realize spacing bottom such arc-shaped seat with chute inwall.It should be noted that chute can adopt various shape, such as trapezoidal, circular etc., comparatively simply, chute comprises the sliding tray being positioned at middle part and the stopper slot being positioned at sliding tray two bottom sides.
In order to strengthen the architectural characteristic of base, transverse reinforcement to be embedded in base and to parallel with chute direction, and transverse reinforcement 27 is multiple; Longitudinal reinforcement 28 is U-shaped and is weldingly fixed on the transverse reinforcement 27 of base both sides.
In order to strengthen the stability bottom foundation ditch further, the end face of road slag blanket is embedded with direction earthwork grille.
Embodiment 2
The construction method of a kind of above-mentioned pipeline foundation of the utility model one preferred embodiment, comprises following step:
S1, size according to pipeline to be installed, selected the adaptive flat base of precast concrete, be slidably connected on base by arc-shaped seat, and fixed by anchoring piece;
S2, slope excavation pit can be put to projected depth, foundation ditch inspect for acceptance qualified after, lay foot mat;
S3, flat for the precast concrete made base is positioned on the foot mat in pipe trench;
S4, by fixture, base is fixed on foot mat;
S5, on the flat base of precast concrete lay top bed course;
S6, by Pipe installing on the flat base of precast concrete, more namely backfill completes the installation work of pipeline foundation in tube seat.
Wherein, the concrete processing method of the flat base of precast concrete is: precast pedestal, assembling reinforcement on pedestal, branching standing template, described template is preferably the set shaped steel formwork of high strength, builds C25 cement concrete in template, vibrate with vibrator, to concrete frost boiling no longer overflows bubble.In precast concrete flat base upper cover layer of plastic film, maintenance reaches 20Mpa to concrete strength.The direct machine-shaping of the flat base of precast concrete of the utility model design, directly can be transported to pipe trench and install, and without the need to installing bed course, save installation procedure and engineering time.
Wherein, step S2 comprises the detection to bearing capacity bottom foundation ditch, and during bearing capacity of foundation soil fak >=80kPa, the thickness of road slag blanket is less than or equal to 5cm; During bearing capacity of foundation soil 55≤fak < 80kPa, the thickness of road slag blanket is greater than 5cm and is less than or equal to 50cm; During bearing capacity of foundation soil fak < 55kPa, the thickness of road slag blanket is greater than 50cm.
In step S2, as bearing capacity of foundation soil fak < 55kPa, bury direction earthwork grille underground at the end face of road slag blanket.
The above is only preferred embodiment of the present utility model; be not limited to the utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (7)
1. a pipeline foundation, is characterized in that: comprise foot mat, the flat base of precast concrete, top bed course and the pipeline laid successively from low to high, wherein, described foot mat comprises one slag blanket, and described top bed course comprises a hardcore bed and a medium-sand seam;
The flat base of described precast concrete comprises prefabricated base, symmetrically arranged two arc-shaped seats and two limit bases, the top of described base is provided with the chute of two ends perforate, the top of described arc-shaped seat is provided with cambered surface, and the bottom of described arc-shaped seat relative sliding and two cambered surfaces in described chute are oppositely arranged;
Described base is provided with the anchoring piece for spacing described arc-shaped seat relative sliding position, the middle part of described base and two ends are also provided with the fixture for being fixed on by base on foot mat, are provided with interlaced transverse reinforcement and longitudinal reinforcement in described base.
2. pipeline foundation according to claim 1, is characterized in that: the bottom width of described chute is greater than top width.
3. pipeline foundation according to claim 2, is characterized in that: described chute comprises the sliding tray being positioned at middle part and the stopper slot being positioned at sliding tray two bottom sides.
4. pipeline foundation according to claim 1, is characterized in that: described transverse reinforcement to be embedded in base and to parallel with chute direction, and described transverse reinforcement is multiple; Described longitudinal reinforcement is U-shaped and is weldingly fixed on the transverse reinforcement of base both sides.
5. pipeline foundation according to claim 1, is characterized in that: the end face of described road slag blanket is embedded with direction earthwork grille.
6. pipeline foundation according to claim 1, is characterized in that: during bearing capacity of foundation soil fak >=80kPa, and the thickness of described road slag blanket is less than or equal to 5cm; During bearing capacity of foundation soil 55≤fak < 80kPa, the thickness of described road slag blanket is greater than 5cm and is less than or equal to 50cm; During bearing capacity of foundation soil fak < 55kPa, the thickness of described road slag blanket is greater than 50cm.
7. pipeline foundation according to claim 1, is characterized in that: the thickness of described hardcore bed and medium-sand seam is not less than 10cm and 5cm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662490.1U CN204940330U (en) | 2015-08-28 | 2015-08-28 | A kind of pipeline foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520662490.1U CN204940330U (en) | 2015-08-28 | 2015-08-28 | A kind of pipeline foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204940330U true CN204940330U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520662490.1U Withdrawn - After Issue CN204940330U (en) | 2015-08-28 | 2015-08-28 | A kind of pipeline foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204940330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089069A (en) * | 2015-08-28 | 2015-11-25 | 苏州同尚工程设计咨询有限公司 | Pipeline foundation and construction method thereof |
| CN107061867A (en) * | 2017-04-14 | 2017-08-18 | 宣城市政建设集团有限公司 | A kind of reinforced concrete drainage pipe is rested the head on pipe |
-
2015
- 2015-08-28 CN CN201520662490.1U patent/CN204940330U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089069A (en) * | 2015-08-28 | 2015-11-25 | 苏州同尚工程设计咨询有限公司 | Pipeline foundation and construction method thereof |
| CN107061867A (en) * | 2017-04-14 | 2017-08-18 | 宣城市政建设集团有限公司 | A kind of reinforced concrete drainage pipe is rested the head on pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20170510 |
|
| AV01 | Patent right actively abandoned |