CN115324044A - Anti-liquefaction drainage pipe pile connecting device and construction method - Google Patents
Anti-liquefaction drainage pipe pile connecting device and construction method Download PDFInfo
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- CN115324044A CN115324044A CN202210961218.8A CN202210961218A CN115324044A CN 115324044 A CN115324044 A CN 115324044A CN 202210961218 A CN202210961218 A CN 202210961218A CN 115324044 A CN115324044 A CN 115324044A
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 80
- 239000010959 steel Substances 0.000 claims abstract description 80
- 229920003023 plastic Polymers 0.000 claims abstract description 24
- 239000004033 plastic Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 20
- 239000002689 soil Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 3
- 238000011900 installation process Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000011148 porous material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a liquefaction-resistant drainage pipe pile connecting device and a construction method, wherein a first end plate and a second end plate are both annular, the inner diameter and the outer diameter of the first end plate are consistent with those of a pipe pile, and the inner diameter and the outer diameter of a circular steel plate are consistent with those of the pipe pile; the upper part of the first end plate is used for being connected with an upper pipe pile, the lower part of the first end plate is connected with the upper part of the circular steel plate, the upper part of the second end plate is connected with the lower part of the circular steel plate, and the lower part of the second end plate is used for being connected with a lower pipe pile; at least one pulley block is arranged in the circular steel plate, a drainage belt is wound on the pulley block, an arc-shaped channel corresponding to the pulley block is formed in the side wall of the circular steel plate, a guard plate which is matched with the arc-shaped slideway and provided with a through hole is fixed on the outer side wall of the circular steel plate, and one end of the drainage belt penetrates through the arc-shaped channel and the guard plate through hole in sequence and then is fixed through a fixing clamp plate; the problems of belt breakage and belt returning in the installation process of the plastic drainage plate are effectively solved, the drainage capacity of the rigid pile in any direction is improved, the construction period is shortened, and the treatment cost is reduced.
Description
Technical Field
The invention relates to the technical field of foundation treatment, in particular to a liquefaction-resistant drainage pipe pile connecting device and a construction method.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
At present, a large amount of easily-liquefied foundations are distributed in various places, the natural water content of the easily-liquefied foundations is too large, the bearing capacity is low, hyperstatic pore water pressure is easily generated under the action of an earthquake, and the hyperstatic pore water pressure cannot be quickly dissipated, so that the liquefaction and the destruction of the foundations are caused, and the anti-liquefaction treatment of the foundations is a problem to be solved urgently in civil engineering.
In recent years, measures for preventing easy-to-liquefy ground from liquefying are mainly classified into two types from the action mechanism: improving soil properties and improving liquefiable stress-strain conditions. The former method mainly comprises a compacting method, a replacement method, an enclosing method and a grouting stirring method, but the methods are always high in cost; the latter mainly includes a pressurizing method, a drainage method, a reinforcement method, and a pile foundation treatment method, of which the pile foundation treatment method is the most commonly used method. At present, in engineering construction for treating liquefaction of a foundation, existing pile foundations include gravel piles, liquefaction-resistant rigid drainage piles and the like.
The gravel pile is formed by pressing gravel into a formed hole after forming the hole in a soft or liquefiable foundation in a vibration, impact or water flushing mode and the like to form a compact gravel pile body. The reinforcing method is good in reinforcing effect, simple in construction and good in material permeability, but the strength of the gravel pile is low, the effect of improving the bearing capacity of foundation soil is not obvious, the noise is high during construction, the vibration is large, the gravel pile is easy to mix into sand particles of the original bottom layer to cause poor drainage effect, and in order to avoid the failure of a drainage channel, the replacement rate of the gravel pile is high, so that the anti-liquefaction measure is high in cost.
Chinese patent (patent No. CN 201911299915.6) discloses an automatic drainage anti-liquefaction rigid pile with controllable flow rate, which adopts the method that an opening groove is vertically arranged on the side surface of a precast pile, a fixed steel plate is arranged on the opening side of the groove, a permeable hole is arranged on the steel plate, geotextile is arranged on the inner side of the steel plate, a communication device and a water suction pipe are arranged in the groove, and the communication device and the water suction pipe are simultaneously connected with a water suction pump. The defect that the foundation of the rigid pile is damaged due to liquefaction of the foundation caused by incapability of draining of the rigid pile in the prior art is theoretically solved. However, the drainage pile is provided with a groove in the pile body, the integrity and the strength of the pile body are damaged, and the groove is provided, the steel plate is additionally arranged, and other measures can obviously increase the complexity of the pile foundation manufacturing process and the whole pile cost.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the anti-liquefaction drainage pipe pile connecting device and the construction method, which do not damage the integrity and the strength of a rigid pile body; no additional process is added; the plastic drainage plate can be easily and conveniently installed in the piling process, and the problems of belt breakage and belt return in the installation process of the plastic drainage plate are effectively relieved; a plurality of drainage channels can be formed around the outer part of the tubular pile at the same time, so that the drainage capability of the rigid pile in any direction is improved; the foundation treatment effect is improved, the construction period is shortened, and the treatment cost is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a liquefaction-resistant drainage pipe pile connecting device in a first aspect.
A liquefaction-resistant drainage pipe pile connecting device comprises: the device comprises a first end plate, a second end plate, a circular steel plate, a pulley block, a drainage plate, a protection plate and a fixed clamping plate;
the first end plate and the second end plate are both annular, the inner diameter and the outer diameter of the first end plate are consistent with those of the tubular pile, and the inner diameter and the outer diameter of the annular steel plate are consistent with those of the tubular pile;
the upper part of the first end plate is used for being connected with the upper pipe pile, the lower part of the first end plate is connected with the upper part of the circular steel plate, the upper part of the second end plate is connected with the lower part of the circular steel plate, and the lower part of the second end plate is used for being connected with the lower pipe pile;
the inside at least one assembly pulley that is equipped with of ring steel sheet, the winding has the drainage area on the assembly pulley, and the lateral wall of ring steel sheet is opened has the arc passageway that corresponds with the assembly pulley, and the lateral wall of ring steel sheet is fixed with and just opens the backplate that has the through-hole with the cooperation of arc slide, and the one end in drainage area is fixed through solid fixed splint after passing arc passageway and backplate through-hole in proper order.
As an optional implementation manner, the first end plate is pre-embedded at the bottom of the upper pipe pile, and the central axis of the first end plate is overlapped with the central axis of the upper pipe pile; the second end plate is pre-buried on the upper portion of tubular pile down, and the central axis of second end plate and the central axis coincidence of tubular pile down.
As an optional implementation manner, the lower part of the first end plate is provided with at least one first bolt hole, and the first bolt hole is matched with a bolt hole formed in the upper part of the circular steel plate; and the upper part of the second end plate is provided with at least one second bolt hole which is matched with the bolt hole formed in the lower part of the circular steel plate.
As an optional implementation mode, the arc-shaped channels, the guard plates and the pulley blocks are configured in a one-to-one correspondence mode.
As an optional implementation manner, the pulley block includes: support, pulley, bearing and nut, drain bar winding are on the pulley, and the pulley passes through bearing and leg joint and fixes with the nut, support and ring steel board fixed connection.
As an optional realization mode, the pulley block is fixed at a position lower than the horizontal center line in the circular steel plate.
As an optional realization mode, the side face of the outer wall of the circular ring steel plate is fixed by welding through the protection plate.
As an alternative implementation, the drain board is a plastic drain board.
As an optional implementation manner, the fixing clamp plate comprises a first clamp plate and a second clamp plate, a first through groove and a second through groove which are opposite in position are formed in one side, opposite to the first clamp plate, of the first clamp plate, a first protrusion is arranged at the top of the first clamp plate, a second protrusion is arranged at the top of the second clamp plate, the first protrusion and the second protrusion are fixed through bolts, and after the first clamp plate and the second clamp plate are clamped tightly, the first through groove and the second through groove form a first through hole for the drainage plate to pass through.
The invention provides a construction method of the anti-liquefaction drainage pipe pile connecting device in the first aspect.
A construction method of a liquefaction-resistant drainage pipe pile connecting device comprises the following steps:
determining the use position of the tubular pile connecting device and the length of the required plastic drainage plate;
fixedly connecting the circular steel plate with a first end plate pre-embedded in the tubular pile;
winding one end of a plastic drainage plate on the pulley, enabling the reserved plastic drainage plate to reach the top surface of the outer part of the steel plate from the inside of the steel plate along the arc-shaped channel and the protection plate on the circular steel plate, and fixing the plastic drainage plate on the ground by using a fixing clamp plate;
hoisting the upper tubular pile and the tubular pile connecting device to be fixedly connected with the second end plate;
and (3) driving the tubular pile and the connecting device into target soil layers which are easy to liquefy and have different depths by using a pile driver.
Compared with the prior art, the invention has the beneficial effects that:
1. the anti-liquefaction drainage pipe pile connecting device and the construction method do not damage the integrity and the strength of the rigid pile body; the plastic drainage plate installing device has the advantages that no additional process is added, the plastic drainage plate can be easily and conveniently installed in the piling process, and the problems of belt breakage and belt return in the installation process of the plastic drainage plate are effectively relieved.
2. According to the anti-liquefaction drainage pipe pile connecting device and the construction method, a plurality of drainage channels can be formed around the outer part of the pipe pile at the same time, so that the drainage capability of the rigid pile in any direction is improved, pore water in a soil body can be quickly removed, the dissipation rate of excess pore water pressure in the soil body is accelerated, and the integrity and the strength of the rigid pile are not damaged.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic view of an overall structure of a liquefaction-resistant drainage pipe pile connection device provided in embodiment 1 of the present invention.
Fig. 2 is a sectional view of a structure of a liquefaction-resistant drainage pipe pile connection device provided in embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of the arrangement of a plurality of pulley blocks according to embodiment 1 of the present invention.
Fig. 4 is a top view of the fixing splint according to embodiment 1 of the present invention.
Fig. 5 is a front view of the fixing splint according to embodiment 1 of the present invention.
Wherein, 1-upper end plate; 2-circular ring steel plate; 3-a lower end plate; 4-a pulley block; 5-plastic drain board; 6-protection plate; 7-an arc-shaped channel; 8-fixing the splint; 9-a scaffold; 10-a pulley; 11-a bearing; 12-a nut; 13-convex steel plate; 14-bolt.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example 1:
as shown in fig. 1 to 5, embodiment 1 of the present invention provides a liquefaction-resistant drainage pipe pile connection device, including: the water drainage plate comprises an upper end plate 1 (namely a first end plate), a circular steel plate 2, a lower end plate 3 (namely a second end plate), a pulley block 4, a plastic drainage plate 5, a protection plate 6 and a fixed clamping plate 8.
The equal level of upper end plate 1 and lower end plate 3 sets up, is the annular, and its material should avoid rustting, and the interior external diameter of upper end plate 1 and lower end plate 3 is unanimous with the interior external diameter of tubular pile, and the bottom surface all is equipped with the bolt hole, and its aperture size is unanimous with the bolt aperture of ring steel sheet 2, and upper end plate 1 and lower end plate 3 need in advance pre-buried in the tubular pile to with ring steel sheet 2 fixed connection, the central axis of end plate during the installation and the coincidence of 2 the central axes of ring steel sheet.
In this embodiment, the inside and outside footpath of ring steel sheet 2 is unanimous with the tubular pile, it should avoid rustting to take place for its material, and the upper and lower bottom surface of ring steel sheet is equipped with the bolt hole, 2 inside can be equipped with a plurality of assembly pulleys 4 as required of ring steel sheet simultaneously, and 2 ring steel sheets need be equipped with a plurality of arc passageways 7 and a plurality of assembly pulley 4 one-to-ones, same ring steel sheet outside side also needs a plurality of guard plates of welding and a plurality of arc passageway one-to-ones, make plastics drain bar from the inside middle and lower position utilization assembly pulley of steel sheet, the light convenient outside top surface of steel sheet that reachs in pore of arc passageway and guard plate, thereby can form a plurality of drainage channel around the tubular pile.
In this embodiment, four pulley blocks are preferably arranged, and it can be understood that, in other embodiments, the number of the pulley blocks may be selected according to specific working conditions, for example, 1 group, 2 groups, 3 groups or more, and those skilled in the art may select according to specific working conditions, which is not described herein again, as long as the one-to-one correspondence between the pulley blocks, the arc-shaped channel and the protection plate is ensured, and is not described herein again.
In this embodiment, the pulley block 4 includes a support 9, a pulley 10, a bearing 11 and a nut 12, the pulley 10 is connected to the support 9 through the bearing 11 and is fixed by the nut 12, so as to form the pulley block 4, and meanwhile, the material of the pulley block 4 should avoid rusting, and the pulley block 4 is fixed at a middle-lower position inside the circular steel plate 2 (i.e., a position below a horizontal center line of the circular steel plate 2) by welding the support 9 in the pulley block 4 to the circular steel plate 2.
In this embodiment, 6 welding of guard plate on 2 outside sides of ring steel sheet, its material should avoid rustting, and its inside is provided with the passageway that corresponds with arc passageway 7, can let drain bar 5 pass through, plays the guard action to drain bar 5 simultaneously, alleviates drain bar 5 and breaks the area problem at the pile driving in-process.
In this embodiment, the winding of plastics drain bar 5 is on pulley 10, reserves drain bar 5 about 1m (the distance here can be selected according to specific operating mode, and is no longer described here) simultaneously, and the drain bar 5 that will reserve reaches steel sheet outside top surface from the inside middle and lower position of steel sheet along the arc passageway 7 on the ring steel sheet 2 and the pore of guard plate 6 to fix subaerial through solid fixed splint 8.
In this embodiment, the fixing splint 8 includes two half-convex steel plates 13 (first half-convex steel plate and second half-convex steel plate) and a bolt 14, the material of the half-convex steel plate 13 should avoid rusting, one side of the first half-convex steel plate opposite to the second half-convex steel plate is provided with a first through groove and a second through groove which are opposite in position, the top of the first half-convex steel plate is provided with a first protrusion, the top of the second half-convex steel plate is provided with a second protrusion, the first protrusion and the second protrusion pass through the bolt fixing, the first half-convex steel plate and the second half-convex steel plate clamp tightly, the first through groove and the second through groove form a first through hole for the drainage plate to pass through, during use, the bolt 14 is screwed tightly to enable the two steel plates 13 to clamp the plastic drainage plate 5, and therefore the plastic drainage plate 5 is fixed on the ground.
Example 2:
the embodiment 2 of the invention provides a construction method of a liquefaction-resistant drainage pipe pile connecting device for an easily liquefied foundation, which comprises the following steps of:
s1: finding out the distribution of liquefied soil layers in an application area, and determining the use position of the tubular pile connecting device and the length of the required plastic drainage plate 5 according to the depth distribution of the liquefied soil layers;
s2: fixedly connecting the circular steel plate 2 with an upper end plate 1 pre-embedded in the tubular pile, and ensuring that the central axis of the upper end plate 1 is superposed with the central axis of the circular steel plate 2;
s3: the plastic drainage plate is wound on the pulley 10, and the drainage plate 5 which is reserved for about 1m reaches the top surface of the outer part of the steel plate from the middle lower position in the steel plate along the arc-shaped channel 7 on the circular steel plate 2 and the pore channel of the protection plate 6 and is fixed on the ground through the fixing clamp plate 8.
S4: hoisting the tubular pile and the circular steel plate 2 to be fixedly connected with the lower end plate 3, and ensuring that the central axis of the lower end plate 3 is coincided with the central axis of the circular steel plate 2;
s5: and finally, driving the tubular pile and the connecting device into target soil layers which are easy to liquefy and have different depths by equipment such as a pile driver and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an anti liquefaction drainage tubular pile connecting device which characterized in that:
the method comprises the following steps: the device comprises a first end plate, a second end plate, a circular steel plate, a pulley block, a drainage plate, a protection plate and a fixed clamping plate;
the first end plate and the second end plate are both annular, the inner diameter and the outer diameter of the first end plate are consistent with those of the tubular pile, and the inner diameter and the outer diameter of the annular steel plate are consistent with those of the tubular pile;
the upper part of the first end plate is used for being connected with an upper pipe pile, the lower part of the first end plate is connected with the upper part of the circular steel plate, the upper part of the second end plate is connected with the lower part of the circular steel plate, and the lower part of the second end plate is used for being connected with a lower pipe pile;
the inside at least one assembly pulley that is equipped with of ring steel sheet, the winding has the drainage area on the assembly pulley, and the lateral wall of ring steel sheet is opened has the arc passageway that corresponds with the assembly pulley, and the lateral wall of ring steel sheet is fixed with and just opens the backplate that has the through-hole with the cooperation of arc slide, and the one end in drainage area is fixed through solid fixed splint after passing arc passageway and backplate through-hole in proper order.
2. The anti-liquefaction drain pipe pile connecting device of claim 1, wherein:
the first end plate is embedded at the bottom of the upper pipe pile, and the central axis of the first end plate is superposed with the central axis of the upper pipe pile; the second end plate is pre-buried on the upper portion of lower tubular pile, and the central axis of second end plate and the central axis coincidence of lower tubular pile.
3. The anti-liquefaction drain pipe pile connecting device of claim 1, wherein:
the lower part of the first end plate is provided with at least one first bolt hole which is matched with a bolt hole formed in the upper part of the circular steel plate; and the upper part of the second end plate is provided with at least one second bolt hole which is matched with the bolt hole formed in the lower part of the circular steel plate.
4. The anti-liquefaction drain pipe pile connecting device of claim 1, wherein:
the arc-shaped channels, the guard plates and the pulley blocks are correspondingly arranged one by one.
5. The anti-liquefaction drain pipe pile connecting device of claim 1, wherein:
the pulley block includes: the drainage plate is wound on the pulley, the pulley is connected with the support through the bearing and fixed through the nut, and the support is fixedly connected with the circular steel plate.
6. The anti-liquefaction drain pipe pile connecting device of claim 1, wherein:
the pulley block is fixed at a position close to the horizontal center line in the circular steel plate.
7. The anti-liquefaction drain pipe pile connecting device of claim 1, wherein:
the side face of the outer wall of the circular steel plate is fixedly welded by the protection plate.
8. The anti-liquefaction drain pipe pile connecting device of claim 1, wherein:
the drain board is a plastic drain board.
9. The anti-liquefaction drain pipe pile connecting device of any one of claims 1-8, wherein:
the fixed splint comprises a first splint and a second splint, one side of the first splint opposite to the second splint is provided with a first through groove and a second through groove which are opposite in position, the top of the first splint is provided with a first protrusion, the top of the second splint is provided with a second protrusion, the first protrusion and the second protrusion are fixed through bolts, and after the first splint and the second splint are clamped tightly, the first through groove and the second through groove form a first through hole for the drainage plate to pass through.
10. The construction method of the anti-liquefaction drainage pipe pile connecting device of any one of claims 1-9, characterized by comprising the following steps:
determining the use position of the tubular pile connecting device and the length of the required plastic drainage plate;
fixedly connecting the circular steel plate with a first end plate pre-embedded in the tubular pile;
winding one end of a plastic drainage plate on the pulley, enabling the reserved plastic drainage plate to reach the top surface of the outer part of the steel plate from the inside of the steel plate along the arc-shaped channel and the protection plate on the circular steel plate, and fixing the plastic drainage plate on the ground by using a fixing clamp plate;
hoisting the upper tubular pile and the tubular pile connecting device to be fixedly connected with the second end plate;
and (3) driving the tubular pile and the connecting device into target soil layers which are easy to liquefy and have different depths by using a pile driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210961218.8A CN115324044B (en) | 2022-08-11 | 2022-08-11 | Anti-liquefaction drainage pipe pile connecting device and construction method |
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| CN202210961218.8A CN115324044B (en) | 2022-08-11 | 2022-08-11 | Anti-liquefaction drainage pipe pile connecting device and construction method |
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| CN115324044A true CN115324044A (en) | 2022-11-11 |
| CN115324044B CN115324044B (en) | 2024-03-15 |
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| CN212742505U (en) * | 2020-07-01 | 2021-03-19 | 中冶集团武汉勘察研究院有限公司 | Device for eliminating belt return in plastic drainage plate setting process |
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| CN115324044B (en) | 2024-03-15 |
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