CN111424646A - Steel pipe pile with stressometer and manufacturing method thereof - Google Patents
Steel pipe pile with stressometer and manufacturing method thereof Download PDFInfo
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- CN111424646A CN111424646A CN202010243396.8A CN202010243396A CN111424646A CN 111424646 A CN111424646 A CN 111424646A CN 202010243396 A CN202010243396 A CN 202010243396A CN 111424646 A CN111424646 A CN 111424646A
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- pipe pile
- steel pipe
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- angle iron
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
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- 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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- 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)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a steel pipe pile with a stress meter and a manufacturing method thereof, wherein the steel pipe pile comprises a vertically arranged steel pipe pile and a plurality of stress measuring mechanisms positioned in an inner cavity of the steel pipe pile, and the lower end of the steel pipe pile is used for vertically inserting and driving soil or rock; each stress measuring mechanism comprises angle iron which is vertically arranged, the direction of the angle iron is the same as that of the steel pipe pile, the angle iron and the inner wall of the steel pipe pile are mutually welded and form a containing cavity with the inner wall of the steel plate pile, the containing cavity is used for placing a stress meter, and the stress meter is used for measuring the stress state of the steel pipe pile in the soil layer; according to the invention, the stress meter is completely wrapped between the angle iron and the steel pipe pile by arranging the angle iron, so that the stress meter is prevented from being damaged; by arranging the fan-shaped pieces, the problem that sand enters the accommodating cavity to damage the stress gauge and the lead thereof when the steel pipe pile is driven into a soil layer can be avoided; polyurethane is filled in the accommodating cavity, so that the impact force on the stress meter during the inserting and driving of the steel pipe pile is greatly relieved; the invention can effectively protect the safety of the stress meter.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the field of foundation pit construction, and particularly relates to a steel pipe pile with a stress meter and a manufacturing method thereof.
[ background of the invention ]
The strain gauge is a sensor which is arranged on the steel structure of a hydraulic structure or other buildings for a long time, measures the strain amount when the stress of the steel structure changes, and can synchronously measure the temperature of the arrangement point.
In recent years, with the rapid development of economy in China, the construction of foundation pit support structures by a large number of steel pipe piles is increased day by day, and the steel pipe piles need to be subjected to stress monitoring in the foundation pit construction process. At present, the steel pipe pile construction mainly adopts an insertion driving method, the existing steel pipe pile needs to be provided with a stress meter independently, and the stress meter is easy to damage the stress meter or a lead in the insertion driving process of the steel pipe pile, so that the stress state of the steel pipe pile can not be measured in the excavation process of a foundation pit, the follow-up construction can not be guided, and the safety condition of the foundation pit can not be confirmed.
[ summary of the invention ]
The invention aims to provide a steel pipe pile with a stress meter and a manufacturing method thereof, and aims to solve the problems that the stress meter needs to be placed independently and is easy to damage in the inserting and driving process of the steel pipe pile.
The invention adopts the following technical scheme: a steel pipe pile with a stress meter comprises a vertically arranged steel pipe pile and a plurality of stress measuring mechanisms positioned in an inner cavity of the steel pipe pile, wherein the lower end of the steel pipe pile is used for vertically inserting and driving soil or rock;
each stress measurement mechanism includes the angle bar of vertical setting, and the trend of angle bar is the same with the trend of steel-pipe pile, and angle bar and steel-pipe pile inner wall are welded each other to enclose with the steel sheet pile inner wall and hold the cavity, hold the cavity and be used for placing the stressometer, the stressometer is used for measuring the stress state that the steel-pipe pile is in the soil horizon.
Furthermore, the angle iron is composed of strip steels with two mutually vertical sides, two long sides of the two strip steels are mutually connected integrally, the other two long sides are two edges, four short sides of the two strip steels are respectively two upper edges corresponding to the upper end of the steel pipe pile and two lower edges corresponding to the lower end of the steel pipe pile, and the two lower edges are welded with fan-shaped pieces;
the fanning strip is fan-shaped and slope setting, and the three limit of fanning strip is segmental arc and two straightway respectively, and the segmental arc of fanning strip is used for with steel-pipe pile inner wall welding, two straightways be used for with two lower edge welds of angle bar, the fanning strip be used for forming an upper portion open-ended cavity that holds with angle bar and inner wall mutually supporting, hold the cavity and be used for placing the stressmeter.
Furthermore, the stress measuring mechanisms are arranged in a straight line shape and sequentially comprise a first stress measuring mechanism, a second stress measuring mechanism, an n-1 stress measuring mechanism and an n-stress measuring mechanism from bottom to top, angle irons of the first stress measuring mechanism and angle irons of the second stress measuring mechanism are welded and communicated, and angle irons of the n-1 stress measuring mechanism and angle irons of the n-stress measuring mechanism are welded and communicated.
Further, fan-shaped pieces are welded on two lower edges of the angle iron of the first stress measuring mechanism.
Further, the containing cavity is filled with polyurethane.
A method for manufacturing a steel pipe pile with a stress meter comprises the following steps:
marking the position of the steel pipe pile where the stress gauge needs to be installed,
welding two ends of the stress gauge on the inner wall of the steel pipe pile,
the ribbed slab of the steel pipe pile is provided with a through hole,
the angle iron is sleeved on the periphery of the stress meter by penetrating through the through hole,
the lead of the stress meter is penetrated out from the angle iron and tied at the upper end of the steel pipe pile,
the fan-shaped sheets are welded at the two lower edges of the angle iron,
polyurethane is filled into the accommodating cavity,
and inserting the steel pipe pile provided with the stress gauge into the soil layer.
The invention has the beneficial effects that: the stress meter is completely wrapped between the angle iron and the steel pipe pile by arranging the angle iron, so that the stress meter is prevented from being damaged; by arranging the fan-shaped pieces, the problem that sand enters the accommodating cavity to damage the stress gauge and the lead thereof when the steel pipe pile is driven into a soil layer can be avoided; polyurethane is filled in the accommodating cavity, so that the impact force on the stress meter during the inserting and driving of the steel pipe pile is greatly relieved; the invention can effectively protect the safety of the stress meter and provide a guidance basis for the subsequent construction process.
[ description of the drawings ]
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the angle iron structure of the present invention.
Wherein: 1. steel pipe piles; 2. a stress measuring mechanism; 3. angle iron; 4. a receiving cavity; 5. a stress meter; 6. a fan-shaped sheet; 7. a rib plate; 8. a polyurethane; 9. an edge; 10. an upper edge; 11. and (4) a lower edge.
[ detailed description ] embodiments
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention discloses a steel pipe pile with a stress meter, which comprises a vertically arranged steel pipe pile 1 and a plurality of stress measuring mechanisms 2 positioned in an inner cavity of the steel pipe pile 1, wherein the upper end and the lower end are respectively arranged at two ends of the steel pipe pile 1, and the lower end of the steel pipe pile 1 is used for vertically inserting soil or rocks; each stress measurement mechanism 2 includes the angle bar 3 of vertical setting, and the trend of angle bar 3 is the same with the trend of steel-pipe pile 1, and angle bar 3 welds each other with 1 inner walls of steel-pipe pile to enclose into semi-enclosed and hold cavity 4 with the steel sheet pile inner wall, hold cavity 4 and be used for placing stressometer 5, and stressometer 5 is used for measuring the stress state that steel-pipe pile 1 is in the soil horizon.
The upper end of steel-pipe pile 1 is used for constantly exerting force downwards through shaking the hammer for the lower extreme of steel-pipe pile 1 slowly inserts the soil layer and carries out foundation ditch enclosure, and steel-pipe pile 1 needs to detect its stress state in follow-up work progress, consequently need place stressometer 5 in steel-pipe pile 1, and after placing stressometer 5, steel-pipe pile 1 is when constantly atress inserts downwards, sand must can get into 1 inner chamber of steel-pipe pile, and the sand that gets into 1 inner chamber of steel-pipe pile will produce the impact force to stressometer 5, and then damage stressometer 5 and wire, protect stressometer 5 after setting up angle iron 3, avoid sand to produce the impact and damage to stressometer 5.
As shown in fig. 3, the angle iron 3 is composed of long steel strips with two perpendicular sides, two long sides of the two long steel strips are integrally connected with each other, the other two long sides are two edges, four short sides of the two long steel strips are respectively two upper edges 10 corresponding to the upper end of the steel pipe pile 1 and two lower edges 11 corresponding to the lower end of the steel pipe pile 1, and the two lower edges 11 are welded with the fan-shaped pieces 6; the segmental fan 6 is fan-shaped and slope setting, the three limit of segmental fan 6 is segmental arc and two straightway respectively, segmental arc 6 be used for with 1 inner wall welding of steel-pipe pile, two straightways are used for along 11 weldings with two of angle bar 3, segmental fan 6 is used for forming an upper portion open-ended cavity 4 that holds with angle bar 3 and inner wall mutually supporting, it is used for placing stressometer 5 to hold cavity 4, segmental fan 6 is steel or iron system, segmental fan 6 slopes to set up, inclination is 45.
If not set up fan-shaped piece 6, because at the in-process that steel-pipe pile 1 was inserted and is beaten, sand and soil can get into 1 inner chamber of steel-pipe pile, consequently must can strike 5 production of stress gauge, sand and soil can get into through the lower extreme opening of angle bar 3 and hold cavity 4, and then strike 5 production of stress gauge to holding in the cavity 4, damage even, consequently can block dust entering through setting up fan-shaped piece 6 and hold cavity 4, avoid dust to produce damage and destruction to stress gauge 5. The fan-shaped pieces 6 are arranged at 45 degrees, so that the impact force can be reduced.
The stress measuring mechanisms 2 can be arranged randomly or in a straight shape, the length of the steel pipe pile 1 is about 30m generally, the diameter of the steel pipe pile is about 1.2m generally, and therefore the stress state of each part of the steel pipe pile 1 can affect the safety condition of the whole foundation pit, if the stress measuring mechanisms 2 are arranged randomly in a scattered mode, the stress state of each inner wall of the steel pipe pile 1 can be detected, if the stress measuring mechanisms 2 are arranged in a straight shape, construction is convenient, and materials and cost can be saved.
If the stress measuring mechanisms 2 are arranged in a straight line, the stress measuring mechanisms 2 are a first stress measuring mechanism, a second stress measuring mechanism, an n-1 th stress measuring mechanism and an n-th stress measuring mechanism from bottom to top in sequence, an upper edge 10 of an angle iron 3 of the first stress measuring mechanism and a lower edge 11 of an angle iron 3 of the second stress measuring mechanism are welded and communicated with each other, an upper edge 10 of the angle iron 3 of the n-1 th stress measuring mechanism and a lower edge 11 of the angle iron 3 of the n-1 th stress measuring mechanism are welded and communicated with each other, and the angle irons 3 of the adjacent stress measuring mechanisms 2 are welded with each other. So arranged, the segments 6 only need to be welded to the two lower edges 11 of the angle bars 3 of the first stress measuring means.
When setting up to a style of calligraphy and arranging, just can only weld fan-shaped piece 6 at two lower edges 11 of first stress measurement mechanism's angle bar 3, and do not weld fan-shaped piece 6 at two lower edges 11 of other stress measurement mechanism 2's angle bar 3, and weld the both ends of adjacent stress measurement mechanism 2's angle bar 3 each other and communicate each other, can practice thrift the engineering time like this, can also practice thrift the cost, and reached the requirement of test steel-pipe pile 1 stress state, after setting up like this, a plurality of stress measurement mechanism 2 just become to arrange for vertical style of calligraphy.
Because holding cavity 4 and placing stressmeter 5, consequently, can not receive the impact of dust in holding cavity 4, but at the in-process that steel-pipe pile 1 was inserted downwards and is beaten, still can produce certain impact to stressmeter 5 in holding cavity 4, consequently through holding cavity 4 intussuseption and being filled with polyurethane 8, polyurethane 8 can absorb the impact force of production, just so avoid the impact force to the damage of stressmeter 5, and polyurethane 8 can also wrap up stressmeter 5, avoid stressmeter 5 and its wire to receive the damage.
Because install the stressmeter 5 in the stress measurement mechanism 2, the wire of stressmeter 5 needs to be connected with external equipment, and the stress state of each position of steel-pipe pile 1 is different, consequently need all set up stressmeter 5 along 10 its inner walls from bottom to top at steel-pipe pile 1 inner wall, just so can carry out abundant measurement to the stress state of steel-pipe pile 1, guarantee the safety of foundation ditch, firstly, guarantee that measured data is more accurate, it is more perfect, secondly, guarantee that the wire is convenient to be connected with external equipment.
The manufacturing method of the invention comprises the following steps:
step 1: the steel pipe pile 1 is marked at the position where the stress gauge 5 is required to be installed, and the steel pipe pile may be arranged at will or in a straight line shape, and the position where the steel pipe pile is required to be installed is marked by a marker pen.
Step 2: and welding two ends of the stress gauge 5 on the inner wall of the steel pipe pile 1, namely welding two ends of the stress gauge 5 at the marked positions.
And step 3: the through hole is vertically formed in the rib plate 7 of the steel pipe pile 1, and the rib plate 7 of the steel pipe pile 1 is arranged along the cross section of the steel pipe pile 1, so that the rib plate 7 can block the angle iron 3, holes are formed in the position, through which the angle iron 3 needs to penetrate, of the rib plate 7, and continuity and integrity of vertical arrangement of the angle iron 3 are guaranteed.
And 4, step 4: the angle iron 3 penetrates through the through hole and is sleeved on the periphery of the stress meter 5, then two edges 9 of the angle iron 3 are welded with the inner wall of the steel pipe pile 1, so that the angle iron 3 and the inner wall of the steel pipe pile 1 form a containing cavity 4, and the stress meter 5 is located in the containing cavity 4.
And 5: the lead of the stress meter 5 penetrates out of the angle iron 3 and is tied at the upper end of the steel pipe pile 1, and at the moment, the lead of the stress meter 5 needs to be arranged safely along the trend of the angle iron 3, so that external equipment can be connected conveniently.
Step 6: two lower edges 11 welding fanning strip 6 of angle bar, with the inner wall mutual welding of fanning strip 6's segmental arc and steel-pipe pile 1, with two straightway of fanning strip 6 and two lower edges 11 mutual welding of angle bar 3 for hold 4 upper portion openings of cavity, all around with the bottom is whole to be sealed, avoid dust to get into and hold cavity 4.
And 7: the housing cavity 4 is filled with polyurethane 8.
And 8: and inserting the steel pipe pile 1 provided with the stress gauge 5 into a soil layer. And (3) completing the inserting and driving of the steel pipe pile 1, measuring the stress meter 5 of the steel pipe pile 1 after the inserting and driving is completed, confirming the integrity of the stress meter 5, and fixing the lead so as to be used next time.
Claims (6)
1. The steel pipe pile with the stress meter is characterized by comprising a vertically arranged steel pipe pile (1) and a plurality of stress measuring mechanisms (2) positioned in an inner cavity of the steel pipe pile (1), wherein the lower end of the steel pipe pile (1) is used for vertically inserting and driving soil or rocks;
each stress measuring mechanism (2) comprises a vertically arranged angle iron (3), the direction of the angle iron (3) is the same as that of the steel pipe pile (1), the angle iron (3) is welded with the inner wall of the steel pipe pile (1) and forms a containing cavity (4) with the inner wall of the steel plate pile, the containing cavity (4) is used for placing a stress meter (5), and the stress meter (5) is used for measuring the stress state of the steel pipe pile (1) in a soil layer.
2. The steel pipe pile with the stress meter as claimed in claim 1, wherein the angle iron (3) is composed of long steel bars with two perpendicular sides, two long sides of the two long steel bars are integrally connected with each other, the other two long sides are two edges, four short sides of the two long steel bars are respectively two upper edges (10) corresponding to the upper end of the steel pipe pile (1) and two lower edges (11) corresponding to the lower end of the steel pipe pile (1), and the two lower edges (11) are welded with fan-shaped pieces (6);
the utility model discloses a steel pipe pile, including fan-shaped piece, fan-shaped piece (6) are fan-shaped and slope setting, the three limit of fan-shaped piece (6) is segmental and two straightway respectively, the segmental arc of fan-shaped piece (6) be used for with steel-pipe pile (1) inner wall welding, two straightways be used for with two lower edges (11) welding of angle bar (3), fan-shaped piece (6) are used for forming an upper portion open-ended and hold cavity (4) with angle bar (3) and inner wall mutually support, it is used for placing stress meter (5) to hold cavity (4).
3. The steel pipe pile with the stress meter as claimed in claim 2, wherein the stress measuring mechanisms (2) are arranged in a straight line shape, and are a first stress measuring mechanism, a second stress measuring mechanism, an n-1 stress measuring mechanism and an n-stress measuring mechanism from bottom to top, wherein the angle iron of the first stress measuring mechanism and the angle iron of the second stress measuring mechanism are welded and communicated, and the angle iron of the n-1 stress measuring mechanism and the angle iron of the n-stress measuring mechanism are welded and communicated.
4. A steel pipe pile carrying a stress gauge according to claim 3, characterised in that the two lower edges (11) of the angle iron (3) of the first stress measuring means are welded with segments (6).
5. A steel pipe pile carrying a stress gauge according to any one of claims 1-4, characterised in that the receiving cavity (4) is filled with polyurethane (8).
6. A method for manufacturing a steel pipe pile with a stress gauge is characterized by comprising the following steps:
marking the position of the steel pipe pile (1) where the stress meter (5) needs to be installed,
welding two ends of the stress gauge (5) on the inner wall of the steel pipe pile (1),
a through hole is arranged on a ribbed slab (7) of the steel pipe pile (1),
the angle iron (3) penetrates through the through hole and is sleeved on the periphery of the stress meter (5),
the lead of the stress gauge (5) penetrates out of the angle iron (3) and is tied at the upper end of the steel pipe pile (1),
the two lower edges (11) of the angle iron (3) are welded with fan-shaped sheets (6),
polyurethane (8) is filled into the accommodating cavity (4),
and inserting the steel pipe pile (1) provided with the stress meter (5) into the soil layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243396.8A CN111424646A (en) | 2020-03-31 | 2020-03-31 | Steel pipe pile with stressometer and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010243396.8A CN111424646A (en) | 2020-03-31 | 2020-03-31 | Steel pipe pile with stressometer and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111424646A true CN111424646A (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010243396.8A Pending CN111424646A (en) | 2020-03-31 | 2020-03-31 | Steel pipe pile with stressometer and manufacturing method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001295270A (en) * | 2000-04-12 | 2001-10-26 | Kokudo Kiso:Kk | Pile and burying method thereof |
| CN202610849U (en) * | 2012-04-09 | 2012-12-19 | 上海勘测设计研究院 | Installation structure with offshore large-diameter steel pipe pile body strain gauges |
| CN104374331A (en) * | 2014-11-18 | 2015-02-25 | 河海大学 | Optical fiber testing method for monitoring SMW construction method inward inserted H type steel deformation |
| CN205530401U (en) * | 2016-03-29 | 2016-08-31 | 中交四航局第二工程有限公司 | Inlay rock steel pipe pile hammer and hit detecting system that process stake point warp |
| CN207331780U (en) * | 2017-08-02 | 2018-05-08 | 中交四航工程研究院有限公司 | A kind of great diameter and long steel pipe pile side friction detection device |
-
2020
- 2020-03-31 CN CN202010243396.8A patent/CN111424646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001295270A (en) * | 2000-04-12 | 2001-10-26 | Kokudo Kiso:Kk | Pile and burying method thereof |
| CN202610849U (en) * | 2012-04-09 | 2012-12-19 | 上海勘测设计研究院 | Installation structure with offshore large-diameter steel pipe pile body strain gauges |
| CN104374331A (en) * | 2014-11-18 | 2015-02-25 | 河海大学 | Optical fiber testing method for monitoring SMW construction method inward inserted H type steel deformation |
| CN205530401U (en) * | 2016-03-29 | 2016-08-31 | 中交四航局第二工程有限公司 | Inlay rock steel pipe pile hammer and hit detecting system that process stake point warp |
| CN207331780U (en) * | 2017-08-02 | 2018-05-08 | 中交四航工程研究院有限公司 | A kind of great diameter and long steel pipe pile side friction detection device |
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Application publication date: 20200717 |