CN215831667U - Device for discharging methane in bridge pile foundation construction - Google Patents
Device for discharging methane in bridge pile foundation construction Download PDFInfo
- Publication number
- CN215831667U CN215831667U CN202121489416.6U CN202121489416U CN215831667U CN 215831667 U CN215831667 U CN 215831667U CN 202121489416 U CN202121489416 U CN 202121489416U CN 215831667 U CN215831667 U CN 215831667U
- Authority
- CN
- China
- Prior art keywords
- exhaust pipe
- pile foundation
- methane
- construction
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a device for discharging methane in bridge pile foundation construction, and belongs to the technical field of municipal engineering pile foundation construction. The device for discharging the methane in the bridge pile foundation construction comprises an exhaust pipe, protective geotextile, an explosion-proof valve, a pressure gauge and a flow meter; the length of the exhaust pipe is larger than the depth from a methane-containing stratum to the ground, the bottom end of the exhaust pipe is provided with an exhaust hole, the outer side of the exhaust pipe where the exhaust hole is arranged is wrapped with protective geotextile, the top end of the exhaust pipe is provided with a three-way pipe, the connecting end of the three-way pipe and the exhaust pipe is provided with an explosion-proof valve, and the other two ends are respectively provided with a pressure gauge and a flow meter. The utility model has wide application range, simple process, simple and convenient construction and low economic cost, and can effectively remove methane in the stratum, thereby improving the construction stratum environment of the bridge pile foundation and providing safety and quality guarantee for the construction of the pile foundation.
Description
Technical Field
The utility model belongs to the technical field of municipal engineering pile foundation construction, and particularly relates to a device for discharging methane in bridge pile foundation construction.
Background
In the special mulberry-based polder landform in the south of Hangjia lake plain, the multi-region stratum of the landform has methane distribution, and if the methane is not properly treated in the construction of a bridge pile foundation, the problems of fire, liquefaction of shallow sandy soil, bottom collapse and the like are easily caused, the pile body quality is reduced, the pile forming is difficult, the bearing capacity of the pile foundation is reduced, and the hole collapse is easily caused by the existing methane cavity.
Therefore, it is necessary to provide a device for discharging biogas during bridge pile foundation construction, which effectively removes biogas in the formation, thereby improving the construction formation environment of the bridge pile foundation and providing safety and quality assurance for the construction of the pile foundation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for discharging methane in bridge pile foundation construction, which has the advantages of wide application range, simple process, simplicity and convenience in construction, low economic cost and capability of effectively discharging the methane in the stratum, thereby improving the construction stratum environment of the bridge pile foundation and providing safety and quality guarantee for the construction of the pile foundation.
In order to realize the purpose, the utility model is realized by the following technical scheme:
the utility model provides a device for discharging methane in bridge pile foundation construction, which comprises an exhaust pipe 1, protective geotextile 2, an explosion-proof valve 3, a pressure gauge 4, a flow meter 5 and a three-way pipe 6, wherein the protective geotextile is arranged at the top of the exhaust pipe; the length of the exhaust pipe 1 is larger than the depth from a methane-containing stratum 7 to the ground, an exhaust hole 8 is formed in the bottom end of the exhaust pipe 1, protective geotextile 2 wraps the outer side of the exhaust pipe 1 where the exhaust hole 8 is formed, a three-way pipe 6 is installed at the top end of the exhaust pipe 1, an explosion-proof valve 3 is installed at the connecting end of the three-way pipe 6 and the exhaust pipe 1, and a pressure gauge 4 and a flow meter 5 are installed at the other two ends of the explosion-proof valve respectively.
As preselection, the exhaust holes 8 are uniformly arranged in a quincunx shape along the circumference of the exhaust pipe 1.
The utility model has the beneficial effects that:
the utility model aims at the problems that the stratum has methane phenomenon and the stratum methane influences pile formation of the pile foundation, solves the problems that fire, liquefaction of shallow sandy soil, bottom collapse and the like are easy to generate if the methane is not properly treated in the construction of the bridge pile foundation, also reduces the quality of the pile body, is difficult to form the pile, reduces the bearing capacity of the pile foundation and easily causes hole collapse due to existing methane cavities, has wide application range, simple process, simple and convenient construction and low economic cost, can effectively remove the methane in the stratum, thereby improving the construction stratum environment of the bridge pile foundation and providing safety and quality guarantee for the construction of the pile foundation.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure, 1-exhaust pipe, 2-protective geotextile, 3-explosion-proof valve, 4-pressure gauge, 5-flow meter, 6-three-way pipe, 7-stratum containing methane, 8-vent hole and 9-sealing mortar.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in fig. 1, the device for discharging methane in bridge pile foundation construction comprises an exhaust pipe 1, protective geotextile 2, an explosion-proof valve 3, a pressure gauge 4, a flow meter 5 and a three-way pipe 6; the length of the exhaust pipe 1 is larger than the depth from the methane-containing stratum 7 to the ground, the bottom end of the exhaust pipe is arranged in the methane-containing stratum 7, the bottom end of the exhaust pipe 1 is provided with exhaust holes 8, the exhaust holes 8 are uniformly arranged along the circumference of the exhaust pipe 1 in a quincunx shape, the outer side of the exhaust pipe 1 where the exhaust holes 8 are arranged is wrapped with protective geotextile 2 to prevent sludge from entering the exhaust pipe 1 along the exhaust holes 8, the top end of the exhaust pipe 1 is provided with a three-way pipe 6, the connecting end of the three-way pipe 6 and the exhaust pipe 1 is provided with an explosion-proof valve 3, the other two ends are respectively provided with a pressure gauge 4 and a flow meter 5 to timely monitor the pressure and the flow of methane in the exhaust pipe 1, and the exhaust pipe 1 is prevented from bursting while methane is discharged.
The working process of the utility model is as follows:
when the geological drilling rig is used, after field leveling is finished, a geological drilling rig is used for drilling, slurry generated in the drilling process is pumped out to a slurry pool by a slurry pump, and after drilling is finished, the geological drilling rig moves to the next point for continuous drilling; after drilling is finished, installing an exhaust pipe 1, inserting one section of an exhaust hole 8 at the bottom end of the exhaust pipe 1 into a methane-containing stratum 7, wrapping protective geotextile 2 outside the exhaust pipe 1 where the exhaust hole 8 is arranged, preventing sludge from entering the exhaust pipe 1 along the exhaust hole 8, and plugging and fixing a hole opening by using sealing mortar 9 after the exhaust pipe 1 is inserted to a preset depth; the biogas discharged by the exhaust pipe 1 is treated in a high-level discharge mode, and the exhaust pipe 1 is higher than the ground and the water surface by more than 2.0 m.
The utility model aims at the problems that the stratum has methane phenomenon and the stratum methane influences pile formation of the pile foundation, solves the problems that fire, liquefaction of shallow sandy soil, bottom collapse and the like are easy to generate if the methane is not properly treated in the construction of the bridge pile foundation, also reduces the quality of the pile body, is difficult to form the pile, reduces the bearing capacity of the pile foundation and easily causes hole collapse due to existing methane cavities, has wide application range, simple process, simple and convenient construction and low economic cost, can effectively remove the methane in the stratum, thereby improving the construction stratum environment of the bridge pile foundation and providing safety and quality guarantee for the construction of the pile foundation.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the utility model, and that, although the utility model has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the utility model as defined by the appended claims.
Claims (2)
1. The utility model provides a device that is used for bridge pile foundation construction marsh gas to discharge which characterized in that: the device for discharging the methane in the bridge pile foundation construction comprises an exhaust pipe (1), protective geotextile (2), an explosion-proof valve (3), a pressure gauge (4), a flow meter (5) and a three-way pipe (6); the length of the exhaust pipe (1) is larger than the depth from a methane-containing stratum (7) to the ground, an exhaust hole (8) is formed in the bottom end of the exhaust pipe (1), protective geotextile (2) wraps the outer side of the exhaust pipe (1) where the exhaust hole (8) is formed, a three-way pipe (6) is installed on the top end of the exhaust pipe (1), an explosion-proof valve (3) is installed at the connecting end of the three-way pipe (6) and the exhaust pipe (1), and a pressure gauge (4) and a flow meter (5) are installed at the other two ends of the three-way pipe respectively.
2. The device for discharging the biogas in the bridge pile foundation construction according to claim 1, wherein: the exhaust holes (8) are uniformly arranged in a quincunx shape along the circumference of the exhaust pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121489416.6U CN215831667U (en) | 2021-07-02 | 2021-07-02 | Device for discharging methane in bridge pile foundation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121489416.6U CN215831667U (en) | 2021-07-02 | 2021-07-02 | Device for discharging methane in bridge pile foundation construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215831667U true CN215831667U (en) | 2022-02-15 |
Family
ID=80191109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121489416.6U Active CN215831667U (en) | 2021-07-02 | 2021-07-02 | Device for discharging methane in bridge pile foundation construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215831667U (en) |
-
2021
- 2021-07-02 CN CN202121489416.6U patent/CN215831667U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021109144A1 (en) | Modular intelligent dado cast-in-place pile and construction process therefor | |
| CN205296175U (en) | High pressure -bearing depth of water excavation supporting stock structure | |
| CN203256729U (en) | Larson steel sheet pile containment device for open caisson construction | |
| CN202644538U (en) | A grouting device used for a water-rich quicksand stratum | |
| CN201704688U (en) | Double sleeve for cast-in-situ bored pile capable of isolating pile-earth contact | |
| CN206887949U (en) | A kind of assembled pressure-adjustable enlarging anchor rod structure | |
| CN215831667U (en) | Device for discharging methane in bridge pile foundation construction | |
| CN206802552U (en) | A kind of non-excavation type push pipe | |
| CN204941551U (en) | A kind of subway station of Curve Pipe Jacking supporting and protection structure enlarging shield-tunneling construction | |
| CN101768982B (en) | Method and device for eliminating water burst,shifting sand danger of underground building curtain | |
| CN206233204U (en) | Buried pressure steel pipe contact grouting hole sealing structure | |
| CN212561582U (en) | Precipitation inclined shaft in deep foundation pit | |
| CN210975737U (en) | Reservoir dam body culvert pipe transformation structure | |
| CN106593528A (en) | Air pressure fracturing high stress blocking method for large deformation of tunnel and device thereof | |
| CN210238512U (en) | Concrete high dam full dam storehouse surface-free consolidation grouting structure | |
| CN207794115U (en) | A kind of recyclable water sealing structure of foundation pit freezing supporting | |
| CN111851548A (en) | Dewatering inclined shaft in deep foundation pit and construction method thereof | |
| CN106869189B (en) | Device for inhibiting scouring of ocean building pile foundation seabed | |
| CN213116339U (en) | Wall-penetrating water stop structure for mechanical pipe-jacking circular working well opening | |
| CN220057970U (en) | Slurry stopping device for steel pipe inlet operation | |
| CN221236714U (en) | Ultra-deep shield originating end reinforcing structure of micro-pressure-bearing water soft soil stratum adjacent existing line | |
| CN220667564U (en) | Cave door reinforcing structure with jacking pipe penetrating through micro confined aquifer | |
| CN217758711U (en) | Water stop occluded steel pipe pile | |
| CN221348824U (en) | Slip-tongue type reversible grouting pipe device | |
| CN203463786U (en) | Waterstop ring for sludge-water balanced pipe jacking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |