CN110295634B - GNSS monitoring device convenient for field installation and construction method thereof - Google Patents

GNSS monitoring device convenient for field installation and construction method thereof Download PDF

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Publication number
CN110295634B
CN110295634B CN201910752647.2A CN201910752647A CN110295634B CN 110295634 B CN110295634 B CN 110295634B CN 201910752647 A CN201910752647 A CN 201910752647A CN 110295634 B CN110295634 B CN 110295634B
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China
Prior art keywords
straight rod
functional straight
concrete pile
foundation pit
pvc sleeve
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CN201910752647.2A
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CN110295634A (en
Inventor
唐锡彬
徐静
张雷
程伟
崔健
胡红兵
刘永
杨建华
王得洪
董鹏
杨乾
高元
任文龙
王宏胜
王建成
赵乐
何林
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PowerChina Guizhou Electric Power Engineering Co Ltd
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PowerChina Guizhou Electric Power Engineering Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D33/00Testing foundations or foundation structures
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (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)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a GNSS monitoring device convenient for field installation and a construction method thereof, belonging to the technical field of deformation monitoring in the field of engineering measurement; the foundation pit comprises an underground concrete pile arranged in the foundation pit; a functional straight rod perpendicular to the inner bottom surface of the foundation pit is arranged on the underground concrete pile; one end of the functional straight rod passes through the upper top surface of the underground concrete pile and is vertically upwards arranged, and the other end of the functional straight rod is arranged at the lower side of the underground concrete pile and is attached to the inner bottom surface of the foundation pit; a PVC sleeve is surrounded on the outer side of the functional straight rod; the lower bottom of the PVC sleeve is arranged at the upper end of the underground concrete pile, and an overground concrete pile is arranged between the inner side of the PVC sleeve and the outer wall of the functional straight rod; the top end of the functional straight rod is also provided with the GNSS receiver, so that the problems that the current GNSS observation pier structure needs more material modules and the construction method is complex are solved, the components are all of a standard structure, an installation template is not required to be manufactured on site, the working time is saved, and the working efficiency is improved; the device also has the advantages of simple structure, convenient construction and the like.

Description

GNSS monitoring device convenient for field installation and construction method thereof
Technical Field
The invention relates to the technical field of deformation monitoring in the field of engineering measurement, in particular to a GNSS monitoring device convenient for field installation and a construction method thereof.
Background
GNSS monitoring devices are commonly used for monitoring landslide, debris flow, side slopes, foundation pits and other places, and are disclosed in patent document with publication number 208001181U and publication date 20181023: as shown in the 'GNSS monitoring solar power supply structure', most of the traditional GNSS monitoring devices use building engineering means to form concrete observation piers by digging foundation, arranging a preset casting cage body and casting concrete into the cage body from the later stage, wherein the engineering means need more materials and are required to use devices such as templates, reinforcement cage nets, forced centering observation discs and the like; the operation means is complicated; this is a problem faced at present.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the GNSS monitoring device convenient to install in the open air and the construction method thereof are provided, so that the problems that the current GNSS observation pier structure needs more material modules and the operation means is complex are solved.
In order to solve the problems, the invention provides the following technical scheme:
a GNSS monitoring device convenient for field installation comprises an underground concrete pile arranged in a foundation pit; a functional straight rod perpendicular to the inner bottom surface of the foundation pit is arranged on the underground concrete pile; one end of the functional straight rod passes through the upper top surface of the underground concrete pile and is vertically upwards arranged, and the other end of the functional straight rod is arranged at the lower side of the underground concrete pile and is attached to the inner bottom surface of the foundation pit; a PVC sleeve is surrounded on the outer side of the functional straight rod; the lower bottom of the PVC sleeve is arranged at the upper end of the underground concrete pile, and an overground concrete pile is arranged between the inner side of the PVC sleeve and the outer wall of the functional straight rod; the top end of the functional straight rod is also provided with a GNSS receiver.
Preferably, an external thread section is arranged at the top end of the functional straight rod, and the GNSS receiver is arranged on the functional straight rod through the external thread section.
Preferably, a supporting flat plate is arranged at the lower bottom of the functional straight rod; one side end face of the supporting flat plate is attached to the inner bottom face of the foundation pit, and a reinforcing rib is further arranged between the upper top end face of the supporting flat plate and the functional straight rod.
Preferably, a plurality of reinforcing rods are arranged in the PVC sleeve; the both ends of stiffener pass the lateral wall setting of PVC sheathed tube respectively, and fix on the function straight-bar at the middle part of stiffener.
Furthermore, a guide ring is sleeved on the functional straight rod; the side wall of the guide ring is provided with a guide hole with the size matched with the reinforcing rod; the reinforcing rod is arranged on the guide ring through the guide hole.
Further, a sealing ring is arranged at the position where the reinforcing rod passes through the PVC sleeve.
A construction method of a GNSS monitoring device convenient for field installation comprises the following steps
S1, excavating a foundation pit at a device site;
s2, placing the functional straight rod in the middle position in the foundation pit, and enabling the bottom end of the supporting flat plate on the functional straight rod to be attached to the inner bottom surface of the foundation pit;
s3, pouring underground concrete piles into the foundation pit;
s4, sleeving a PVC sleeve on the outer side of the functional straight rod before the underground concrete pile is completely solidified;
s5, using a reinforcing rod to sequentially pass through the guide holes on the PVC sleeve and the guide ring so as to fix the functional straight rod and the PVC sleeve;
s6, performing S6; pouring overground concrete piles into the PVC sleeve;
s7: the GNSS receiver is mounted to the upper top end of the functional straight rod through the external thread section.
Preferably, in the step S6, a protective sleeve is sleeved on the external thread section at the top end of the functional straight rod; and taking down the protective sleeve after the above-ground concrete pile is poured.
The invention has the beneficial effects that:
the invention improves on the basis of the mechanism of the traditional GNSS observation pier, replaces the reinforcement cage of the observation pier in the power transmission process with a functional straight rod to be used as a device for directly bearing the GNSS receiver, cancels the GNSS forced centering observation disc, and simultaneously uses the PVC sleeve to replace the template to pour the ground concrete pile; therefore, the problems that the current GNSS observation pier structure needs more material modules and the construction method is complex are effectively solved; on the other hand, the invention has a standard structure, does not need to manufacture and install templates on site, saves working time and improves working efficiency; steel and stirrups are saved, and the middle plate is forcedly used; the device also has the advantages of simple structure, convenient construction and the like.
Drawings
FIG. 1 is a schematic view of the structure of the present invention in an embodiment;
FIG. 2 is a cross-sectional view taken along the direction A of FIG. 1 with the ground concrete pile removed;
reference numerals illustrate: 1. underground concrete pile 2, functional straight rod 3, PVC sleeve pipe, 4, ground concrete pile 5, GNSS receiver, 6, guide ring, 21, external screw thread section, 22, support flat board, 23, strengthening rib, 31, strengthening rod, 61, guiding hole.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples:
examples:
referring to fig. 1, the present embodiment provides a GNSS monitoring apparatus for facilitating field installation, which includes an underground concrete pile 1 disposed in a foundation pit; a functional straight rod 2 perpendicular to the inner bottom surface of the foundation pit is arranged on the underground concrete pile 1; one end of the functional straight rod 2 passes through the upper top surface of the underground concrete pile 1 and is vertically upwards arranged, and the other end of the functional straight rod is arranged at the lower side of the underground concrete pile 1 and is attached to the inner bottom surface of the foundation pit; a PVC sleeve 3 is surrounded on the outer side of the functional straight rod 2; the lower bottom of the PVC sleeve 3 is arranged at the upper end of the underground concrete device 1, and an overground concrete pile 4 is arranged between the inner side of the PVC sleeve 3 and the outer wall of the functional straight rod 2; the top end of the functional straight rod 2 is also provided with a GNSS receiver 5. In the embodiment, the shape of the excavated foundation pit is a square structure with the depth of 1.2m and the side length of 1m, and the functional straight rod 2 is a reinforcing steel bar with the total length of 2.5 m; the PVC sleeve 3 has a structure with the outer diameter of 35cm and the length of 1.5 m.
An external thread section 21 is arranged at the top end of the functional straight rod 2, the GNSS receiver 5 is arranged on the functional straight rod 2 through the external thread section 21, in the embodiment, the length of the external thread section 21 is 20cm, and the GNSS receiver 5 is connected with threads to be convenient for later maintenance and replacement.
A supporting flat plate 22 is arranged at the lower bottom of the functional straight rod 2; one side end surface of the supporting flat plate 22 is attached to the inner bottom surface of the foundation pit, and a reinforcing rib 23 is further arranged between the upper top end surface of the supporting flat plate 22 and the functional straight rod 2. In the embodiment, the supporting flat plate 22 is a steel plate with the side length of 30cm and the thickness of 1cm, and the reinforcing ribs 23 are of angle steel structures; the support flat plate 22 and the reinforcing ribs 23 are welded and installed on the functional straight rod 2, and the purpose of using the support flat plate 22 and the reinforcing ribs 23 is to improve the stability of the functional straight rod 1 in a foundation pit; thereby facilitating the casting of the underground concrete pile 1.
A plurality of reinforcing rods 31 are arranged in the PVC sleeve 3; both ends of the reinforcing rod 31 are respectively arranged through the side walls of the PVC sleeve 3, and are fixed on the functional straight rod 2 in the middle of the reinforcing rod 31. The reinforcing rod 31 is arranged to be beneficial to ensuring the relative position between the PVC sleeve 3 and the functional straight rod 2 and preventing relative movement between the PVC sleeve 3 and the functional straight rod from occurring, so that the pouring of the overground concrete pile 4 fails.
A guide ring 6 is sleeved on the functional straight rod 3; a guide hole 61 with the size matched with the reinforcing rod 31 is formed in the side wall of the guide ring 6; the reinforcing rod 31 is mounted on the guide ring 6 through the guide hole 61.
A sealing ring is also provided at the location where the reinforcing rod 31 passes through the PVC casing 3, in this embodiment the sealing ring is not shown in the drawings, but the use of a sealing ring is advantageous in preventing the concrete slurry from escaping from the perforated location.
The embodiment also discloses a construction method of the GNSS monitoring device convenient for field installation, which comprises the following steps:
s1, excavating a foundation pit at a device site;
s2, placing the functional straight rod 2 in the middle position in the foundation pit, and enabling the bottom end of the supporting flat plate 22 on the functional straight rod 2 to be attached to the inner bottom surface of the foundation pit;
s3, pouring an underground concrete pile 1 into the foundation pit;
s4, before the underground concrete pile 1 is completely solidified, sleeving the PVC sleeve 3 on the outer side of the functional straight rod 2;
s5, using the reinforcing rod 31 to sequentially pass through the guide holes 61 on the PVC sleeve 3 and the guide ring 6 so as to fix the functional straight rod 2 and the PVC sleeve 3;
s6, performing S6; pouring an overground concrete pile 4 into the PVC sleeve 3;
s7: the GNSS receiver 5 is mounted to the upper top end of the functional straight bar 2 by means of an external threaded section 21.
In S6, a protective sleeve is sleeved on the external thread section 21 at the upper top end of the functional straight rod 2; and taking down the protective sleeve after the overground concrete pile 4 is poured. The protective sleeve is able to protect the male threaded section 21 from contamination by concrete grout in casting the ground concrete pile 4.

Claims (6)

1. The GNSS monitoring device convenient for field installation comprises an underground concrete pile (1) arranged in a foundation pit; the method is characterized in that: a functional straight rod (2) perpendicular to the inner bottom surface of the foundation pit is arranged on the underground concrete pile (1); one end of the functional straight rod (2) passes through the upper top surface of the underground concrete pile (1) to be vertically upwards arranged, and the other end of the functional straight rod is arranged at the lower side of the underground concrete pile (1) and is attached to the inner bottom surface of the foundation pit; a PVC sleeve (3) is surrounded on the outer side of the functional straight rod (2); the lower bottom of the PVC sleeve (3) is arranged at the upper end of the underground concrete pile (1), and an above-ground concrete pile (4) is arranged between the inner side of the PVC sleeve (3) and the outer wall of the functional straight rod (2); the top end of the functional straight rod (2) is also provided with a GNSS receiver (5); the construction method of the monitoring device comprises the following steps:
s1, excavating a foundation pit at a device site;
s2, placing the functional straight rod (2) in the middle position in the foundation pit, and enabling the bottom end of the upper supporting flat plate (22) of the functional straight rod (2) to be attached to the inner bottom surface of the foundation pit;
s3, pouring an underground concrete pile (1) into the foundation pit;
s4, before the underground concrete pile (1) is completely solidified, sleeving the PVC sleeve (3) on the outer side of the functional straight rod (2);
s5, using a reinforcing rod (31) to sequentially penetrate through the PVC sleeve (3) and the guide holes (61) on the guide ring (6) so as to fix the functional straight rod (2) and the PVC sleeve (3);
s6, performing S6; pouring an overground concrete pile (4) into the PVC sleeve (3); in the S6, a protective sleeve is sleeved on an external thread section (21) at the upper top end of the functional straight rod (2); taking down the protective sleeve after the overground concrete pile (4) is poured;
s7: the GNSS receiver (5) is mounted on the upper top end of the functional straight rod (2) through the external thread section (21).
2. The GNSS monitoring device for facilitating field installation of claim 1, wherein: an external thread section (21) is arranged at the top end of the functional straight rod (2), and the GNSS receiver (5) is arranged on the functional straight rod (2) through the external thread section (21).
3. The GNSS monitoring device for facilitating field installation of claim 1, wherein: a supporting flat plate (22) is arranged at the lower bottom of the functional straight rod (2); one side end surface of the supporting flat plate (22) is attached to the inner bottom surface of the foundation pit, and a reinforcing rib (23) is further arranged between the upper top end surface of the supporting flat plate (22) and the functional straight rod (2).
4. The GNSS monitoring device for facilitating field installation of claim 1, wherein: a plurality of reinforcing rods (31) are arranged in the PVC sleeve (3); the two ends of the reinforcing rod (31) respectively penetrate through the side wall of the PVC sleeve (3), and the middle part of the reinforcing rod (31) is fixed on the functional straight rod (2).
5. The GNSS monitoring device of claim 4 for facilitating field installation, wherein: a guide ring (6) is sleeved on the functional straight rod (2); a guide hole (61) with the size matched with the reinforcing rod (31) is formed in the side wall of the guide ring (6); the reinforcing rod (31) is mounted on the guide ring (6) through the guide hole (61).
6. The GNSS monitoring device of claim 4 for facilitating field installation, wherein: a sealing ring is also arranged at the position where the reinforcing rod (31) passes through the PVC sleeve (3).
CN201910752647.2A 2019-08-15 2019-08-15 GNSS monitoring device convenient for field installation and construction method thereof Active CN110295634B (en)

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Application Number Priority Date Filing Date Title
CN201910752647.2A CN110295634B (en) 2019-08-15 2019-08-15 GNSS monitoring device convenient for field installation and construction method thereof

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Application Number Priority Date Filing Date Title
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CN110295634B true CN110295634B (en) 2024-04-02

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08177044A (en) * 1994-12-21 1996-07-09 Ando Corp Constructing method of cast-in-place concrete pile and form device for molding pile head used for constructing method
CN103076010A (en) * 2013-01-25 2013-05-01 天津二十冶建设有限公司 Fabrication method of forced centering observation pillar for precision engineering measurement and observation pillar
CN202925575U (en) * 2012-11-07 2013-05-08 深圳市工勘岩土工程有限公司 Pre-buried structure for core-drilling detection of foundation pile
CN106703086A (en) * 2015-08-08 2017-05-24 南京科博空间信息科技有限公司 Online security monitoring system for foundation pit
CN207907854U (en) * 2018-01-12 2018-09-25 中建六局土木工程有限公司 A kind of monitoring device for Underground Construction
CN110042844A (en) * 2019-04-09 2019-07-23 中铁时代建筑设计院有限公司 A kind of construction method of cast-in-place major diameter foundation pit support pipe pile
CN210712983U (en) * 2019-08-15 2020-06-09 中国南方电网有限责任公司超高压输电公司贵阳局 GNSS monitoring devices convenient to open-air installation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08177044A (en) * 1994-12-21 1996-07-09 Ando Corp Constructing method of cast-in-place concrete pile and form device for molding pile head used for constructing method
CN202925575U (en) * 2012-11-07 2013-05-08 深圳市工勘岩土工程有限公司 Pre-buried structure for core-drilling detection of foundation pile
CN103076010A (en) * 2013-01-25 2013-05-01 天津二十冶建设有限公司 Fabrication method of forced centering observation pillar for precision engineering measurement and observation pillar
CN106703086A (en) * 2015-08-08 2017-05-24 南京科博空间信息科技有限公司 Online security monitoring system for foundation pit
CN207907854U (en) * 2018-01-12 2018-09-25 中建六局土木工程有限公司 A kind of monitoring device for Underground Construction
CN110042844A (en) * 2019-04-09 2019-07-23 中铁时代建筑设计院有限公司 A kind of construction method of cast-in-place major diameter foundation pit support pipe pile
CN210712983U (en) * 2019-08-15 2020-06-09 中国南方电网有限责任公司超高压输电公司贵阳局 GNSS monitoring devices convenient to open-air installation

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