CN110984199A - Progressive direct-pressure water intake pipe well sealing structure and construction method thereof - Google Patents
Progressive direct-pressure water intake pipe well sealing structure and construction method thereof Download PDFInfo
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- CN110984199A CN110984199A CN201911350325.1A CN201911350325A CN110984199A CN 110984199 A CN110984199 A CN 110984199A CN 201911350325 A CN201911350325 A CN 201911350325A CN 110984199 A CN110984199 A CN 110984199A
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- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
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- E02D19/10—Restraining of underground water by lowering level of ground water
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Abstract
The invention relates to a progressive direct-pressure water intake pipe well sealing structure and a construction method thereof, wherein the progressive direct-pressure water intake pipe well sealing structure comprises a bottom conical head, a push rod, a pipe sealing and a top sealing plate group; the bottom cone head is divided into an upper cone ring body and a lower cone head which are nested with each other; the upper cone ring body is fixed with the step-by-step direct-pressure water taking pipe at the upper part of the upper cone ring body, an inner cone slope for abutting against the embedded part of the lower cone head is arranged on the periphery of a through opening at the lower end of the upper cone ring body, a cone slope reinforcing rib is configured on the inner cone slope, an inner cone slope abutting rib is arranged on the upper periphery of the lower cone head, and an annular pressing edge is further arranged at the upper part of the lower cone head; a supporting plate is arranged above the lower conical head, and a supporting rod of the supporting plate is arranged between the supporting plate and the lower conical head; the lower extreme of push rod can be contradicted on the thrust plate, and the upper end of push rod is connected with the lower extreme of tube packing, and top shutoff group board includes load basic unit's platform, conversion platform board and terminates the shrouding. The invention mainly designs the bottom cone head into a separable structure, thereby solving the problems that the progressive direct-pressure water taking pipe is directly used as a sealing pipe, the cost is higher, and the repeated use cannot be realized.
Description
Technical Field
The invention relates to the field of buildings, in particular to a progressive direct-pressure water intake pipe well sealing structure and a construction method thereof.
Background
Before the earth excavation, a water pumping facility in the earth is required to be arranged in advance so as to meet the requirement of earth excavation after precipitation. At present, mechanical pore-forming is adopted for water taking wells in most soils, and then a filter layer is put in an outer ring of the water taking well, so that the diameter of the pipe well is large, the formation of the filter layer is difficult to control, the well washing needs to be carried out before the initial filtration is formed, the cost is high, and the use time is long. Therefore, related technicians in the field develop a water taking pipe which is gradually pressed into a soil body, the water taking pipe is called a gradual-advancing direct-pressure water taking pipe for short, a conical head is arranged at the lower end of the gradual-advancing direct-pressure water taking pipe, and a pipe pressing component is arranged at the upper end of the gradual-advancing direct-pressure water taking pipe. However, such water intake pipes are usually high in manufacturing cost, and in the later stage of construction of some underground structures, a small amount of seeper which seeps downwards still needs to be extracted within a long period of time in the project, the water intake pipes are directly used as pipe sealing, so that the water intake pipes cannot be taken out for reuse, and the cost waste is large. For this reason, improvement of the overall structure of the progressive direct-pressure water intake pipe is required.
Disclosure of Invention
In view of the defects of the prior art, the invention provides a progressive straight-pressure water intake pipe well sealing structure and a construction method thereof, wherein a bottom cone head is designed into a separable structure, so that the problems that a progressive straight-pressure water intake pipe is directly used as a sealing pipe, the cost is high, and the progressive straight-pressure water intake pipe cannot be reused are solved.
The technical scheme of the invention is as follows: a sealing structure of a progressive direct-pressure water intake pipe well comprises a bottom conical head, a push rod, a sealing pipe and a top sealing group plate.
The bottom cone head is divided into an upper cone ring body and a lower cone head which is nested at the lower part of the upper cone ring body.
The upper cone ring body is fixed with the progressive direct-pressure water taking pipe on the upper portion of the upper cone ring body, an inner cone slope used for abutting against the lower cone head embedding portion is arranged on the peripheral portion of an opening at the lower end of the upper cone ring body, a cone slope reinforcing rib is configured on the inner cone slope, an inner cone slope abutting rib is arranged on the upper peripheral portion of the lower cone head, and an annular pressing edge is further arranged on the upper portion of the lower cone head.
The upper portion of conical head is provided with the thrust plate down, be provided with thrust plate branch between thrust plate and the lower conical head.
And the upper end of the recovery rope is hung on the operation platform of the top plugging group plate.
The lower extreme of push rod can be contradicted on the thrust plate, the upper end of push rod is connected with the lower extreme of sealing the pipe, but the equipment of sealing the pipe festival forms, the lower festival of sealing the pipe is the load and filters the festival, the upper segment of sealing the pipe is the section of fetching water.
The top plugging combined plate comprises a bearing base layer platform, wherein a back shifting well hole which is beneficial to forward and direct-pressure water taking pipes to be pulled back upwards is formed in the bearing base layer platform, and bolts or nut barrels are embedded in the bearing base layer platform according to the combination holes of the conversion platform plate.
The conversion platform board week portion is provided with and is used for the preformed hole with pre-buried bolt or nut section of thick bamboo matching on the bearing basic unit platform, offer the sealed pipe mounting hole that is used for wearing to establish sealed pipe on the conversion platform board, the side of sealed pipe mounting hole is provided with throws the material hole.
The conversion platform is also preset with a connection embedded part of a termination sealing plate, and the termination sealing plate is used for sealing the pipe sealing mounting hole and the feeding hole after pumping water.
Preferably, the lower conical head is a whole integrated conical tip structure or a multi-lobe combined conical tip structure.
Preferably, a plurality of guide rings are sleeved on the outer side of the push rod, and the guide rings can enable the inner side wall of the gradual-advancing direct-pressure water taking pipe to slide up and down.
Preferably, the upper section and the lower section of the sealing pipe are in screwed butt joint through a pipe sleeve.
The construction method of the progressive straight-pressure water intake pipe well closed structure comprises the following steps:
(1) constructing a bearing base platform, and pressing a gradual-advancing direct-pressure water intake pipe into a soil body on the lower side of the bearing base platform on the bearing base platform;
(2) after the water taking operation is finished, the water taking pipe is pulled back upwards and gradually enters the direct-pressure water taking pipe;
(3) back-dialing the gradually advancing direct-pressure water taking pipe to the planned depth, and suspending back-dialing; the lower cone head on the bottom cone head is pushed out downwards from the upper cone ring body through the push rod, so that the lower cone head is separated, and the bottom cone head forms a lower end through opening, thereby facilitating the integral back-pull of the gradual-in direct-pressure water taking pipe;
(4) the straight pressure water taking pipe is rapidly and continuously pulled back upwards, and the lower conical head is pulled upwards through the recovery rope;
(5) installing a subsequent pumping pipe in the seal pipe, wherein the seal pipe is movably connected on the conversion platform plate;
(6) filling redundant space in the backfilling well along with subsequent pumping;
(7) and judging that the residual water in the well meets the requirements, and implementing a final sealing plate. .
The invention has the beneficial effects that: the invention mainly designs the bottom cone head into a separable structure, thereby solving the problems that the progressive direct-pressure water taking pipe is directly used as a sealing pipe, the cost is higher, and the repeated use cannot be realized.
Drawings
FIG. 1 is a schematic structural diagram of a progressive straight-pressure water intake well sealing structure in an embodiment.
FIG. 2 is a schematic structural diagram of the upper cone ring body and the lower cone head in a separated state in the embodiment.
In the figure: 1, a bottom cone head 2, a push rod 3, a pipe sealing 4, a top plugging plate set 5 and a gradual straight-pressure water taking pipe;
1.1-upper cone ring body 1.11-opening 1.12-interior taper slope 1.2-lower cone head 1.21-interior taper slope conflict rib 1.22-annular pressure edge 1.23-thrust plate 1.24-thrust plate branch 1.25-recovery rope 3.1-bearing filter section 3.2-water intake section 4.1-bearing basic platform 4.2-dial back well hole 4.3-conversion platform plate 4.4-seal pipe mounting hole 4.5-feeding hole 4.6-end shrouding.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
As shown in fig. 1 and 2, the progressive straight-pressure water intake pipe well sealing structure of the invention comprises a bottom conical head 1, a push rod 2, a pipe sealing 3 and a top sealing group plate 4;
the bottom cone head 1 is a bottom cone pressing body of the gradual-advancing direct-pressure water taking pipe 5, the bottom cone head 1 is divided into an upper cone ring body 1.1 and a lower cone head 1.2 embedded at the lower part of the upper cone ring body 1.1, and when the lower cone head 1.2 is pushed downwards, the lower cone head 1.2 can be separated downwards from the upper cone ring body 1.1.
The upper cone ring body 1.1 is fixed with a lattice filter-embedded water storage pipe body of the gradual-feeding direct-pressure water taking pipe 5, the lattice filter-embedded water storage pipe body comprises a lattice cylindrical frame body, and the lattice cylindrical frame body is embedded with a filter box to form the cylinder wall of the lattice cylindrical frame body, so that the lattice cylindrical frame body forms a cylinder body capable of filtering and storing water. The lattice type filter-embedded box water storage pipe body can be formed by connecting a plurality of sections of lattice type filter-embedded box water storage pipe sections in series.
The separable lower cone head can be formed by separating a lower cone tip part which is larger than the vertical projection surface of the push rod 2, the sealing pipe 3 and the water pumping pump head of the lower cone head, and the combination surface of the lower cone head 1.2 and the upper cone ring body 1.1 can be circular or polygonal.
The periphery of the through hole 1.11 at the lower end of the upper cone ring body 1.1 is provided with an inner cone slope 1.12 which is used for abutting against the embedded part of the lower cone head 1.2, and the inner cone slope 1.12 is provided with a cone slope reinforcing rib to play a role in reinforcing the bearing force of the inner cone slope. The upper peripheral part of the lower conical head 1.2 is provided with an inner conical slope abutting rib 1.21 so as to enlarge the contact surface between the lower conical head and increase the pressure bearing transmission capacity when the lower conical head is pressed into a soil body.
The upper part of the lower cone head 1.2 is also provided with an annular pressing edge 1.22 which is larger than a through hole 1.11 at the lower end of the upper cone ring body 1.1.
The lower conical head 1.2 can be a whole integrated conical tip structure or a conical tip structure combined by multiple lobes.
The upper portion of the lower cone head 1.2 is provided with a supporting plate 1.23, a supporting plate supporting rod 1.24 is arranged between the supporting plate 1.23 and the lower cone head 1.2, and the periphery of the supporting plate 1.23 is smaller than a lower end through opening 1.11 of the upper cone ring body 1.1.
Set up at the suitable position of thrust plate 1.23 or lower conical head 1.2 and retrieve rope 1.25, retrieve rope 1.25 at least two, when the lower conical head is the awl point structure of bivalve combination, guarantee that each bivalve part is connected with two at least and retrieve the rope, retrieve the upper end of rope 1.25 and upwards extend to hang on the operation platform of top shutoff group board.
The lower extreme of push rod 2 can be contradicted on thrust plate 1.23, the upper end of push rod 2 is connected with the lower extreme of tube 3.
The push rod 2 comprises a vertical rod and connecting rings arranged at the upper end and the lower end of the vertical rod, the push rod 2 can be formed by assembling a plurality of sections of push rod sections, a plurality of guide rings are sleeved on the outer side of the push rod 2, and the guide rings can enable the inner side wall of the gradual-advancing direct-pressure water taking pipe to slide up and down.
The internal diameter of the seal pipe 3 should be greater than the pump head of drawing water to the follow-up pump suction pipe of installation in the seal pipe 3 that can be followed, the seal pipe 3 can be assembled by the festival, the lower festival of the seal pipe 3 is the load and filters festival 3.1, the upper festival of the seal pipe 3 is the water intaking section 3.2, the upper and lower festival of the seal pipe 3 is through the spiro union butt joint of pipe sleeve.
The top plugging group plate 4 comprises a bearing base layer platform 4.1 which is provided with plugging structures at the periphery of a gradual-advancing direct-pressure water intake pipe according to a plan, a back-shifting well hole 4.2 which is larger than the gradual-advancing direct-pressure water intake pipe is arranged on the bearing base layer platform 4.1, and a pre-embedded bolt or a nut barrel which is used for installing a conversion platform plate 4.3 is arranged on the bearing base layer platform 4.1, namely the bearing base layer platform 4.1 is provided with a pre-embedded bolt or a nut barrel which is combined with a hole according to the conversion platform plate 4.3.
The conversion platform plate 4.3 is of a plate-type structure with bearing capacity, can be a metal plate or a reinforced concrete plate, has an area larger than a back-shifting well hole 4.2 on a bearing base platform, is matched with the bearing base platform in shape, is provided with a preformed hole for being matched with a pre-buried bolt or a nut barrel on the bearing base platform in the peripheral part, is provided with a pipe sealing mounting hole 4.4 for penetrating a sealing pipe on the conversion platform plate 4.3, is provided with a feeding hole 4.5 at the side of the pipe sealing mounting hole, and meets the requirement of the pipe sealing penetrating.
A pipe sealing union cap is arranged on the conversion platform 4.3, the outer diameter of the pipe sealing union cap is larger than the pipe sealing mounting hole, and a connecting embedded part for terminating the sealing plate is also preset on the conversion platform 4.3.
The terminating seal plate 4.6 is used for drawing out the pump-loading water-pumping pipe after the final water pumping is finished, assembling the terminating seal plate in due time, wherein the terminating seal plate can seal the pipe-sealing mounting hole and the feeding hole, the terminating seal plate is fixed on the conversion platform by adopting a bolt connecting piece, and a waterproof pad is additionally arranged during sealing; or the terminal closing plate is welded on the conversion platform.
The construction method of the progressive straight-pressure water intake pipe well closed structure comprises the following steps:
(1) constructing a bearing base platform, and pressing a gradual-advancing direct-pressure water intake pipe into a soil body on the lower side of the bearing base platform on the bearing base platform;
(2) after the water taking operation is finished, the water taking pipe is pulled back upwards and gradually enters the direct-pressure water taking pipe;
(3) back-dialing the gradually advancing direct-pressure water taking pipe to the planned depth, and suspending back-dialing; the lower cone head on the bottom cone head is pushed out downwards from the upper cone ring body through the push rod, so that the lower cone head is separated, and a lower end through opening is formed in the bottom cone head, and the integral back-pulling of the gradual-in direct-pressure water taking pipe is facilitated;
(4) the straight pressure water taking pipe is rapidly and continuously pulled back upwards, and the lower conical head is pulled upwards through the recovery rope;
(5) installing a subsequent pumping pipe in the seal pipe, wherein the seal pipe is movably connected on the conversion platform plate; or a sealing tube reserved for the push rod at the lower part is intercepted;
(7) filling redundant space in the backfilling well along with subsequent pumping;
(8) and judging that the residual water in the well meets the requirements, and implementing a final sealing plate.
It should be noted that, when performing step (1), the construction of the blocking bearing base layer combined with the structure is performed in advance, and the blocking operation is performed as far as possible by using prefabricated parts, which is short in time.
The direct-pressure facility of the gradual-advancing direct-pressure water taking pipe is replaced by a lifting and back-drawing facility, a push rod is arranged, part of components influencing back-drawing are removed, a pumping pipe is arranged in a central suspension mode, and a suspension structure can be quickly replaced without influencing lateral movement of a pipe well.
The pumping pipe can be changed in height rapidly, so that the pipe joint can move outwards laterally.
The invention is implemented after planning the position, the time and the lower depth of the pipe sealing in advance according to the actual requirements.
The invention has strong pertinence, and only individual pipe sealing requirements are planned in the implementation of a plurality of progressive vertical pressure water taking wells. The whole operation process of improving the progressive direct-pressure water taking well is implemented.
The invention is matched with a progressive direct-pressure water taking pipe well, and is an important additional part in the system when the requirement of pipe sealing is met. The purpose of sealing the pipe is the later stage of underground structure construction, still need extract a small amount of ponding that oozes in a long period of time to guarantee that the construction is normally gone on.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The utility model provides a progressive straight-pressing water intake pipe well seal structure which characterized in that: comprises a bottom conical head, a push rod, a sealing pipe and a top sealing plate;
the bottom cone head is divided into an upper cone ring body and a lower cone head which is nested at the lower part of the upper cone ring body;
the upper cone ring body is fixed with the step-by-step direct-pressure water taking pipe at the upper part of the upper cone ring body, an inner cone slope used for abutting against the embedded part of the lower cone head is arranged on the periphery of a through opening at the lower end of the upper cone ring body, a cone slope reinforcing rib is configured on the inner cone slope, an inner cone slope abutting rib is arranged on the upper periphery of the lower cone head, and an annular pressing edge is further arranged at the upper part of the lower cone head;
a supporting plate is arranged above the lower conical head, and a supporting rod of the supporting plate is arranged between the supporting plate and the lower conical head;
a recovery rope is connected to the thrust plate or the lower conical head, and the upper end of the recovery rope is hung on the operation platform of the top plugging group plate;
the lower end of the push rod can be abutted against the resisting plate, the upper end of the push rod is connected with the lower end of the sealing pipe, the sealing pipe can be assembled in a segmented manner, the lower section of the sealing pipe is a bearing filtering section, the upper section of the sealing pipe is a water taking section,
the top plugging combined plate comprises a bearing base layer platform, wherein a pull-back well hole which is beneficial to pulling in and pulling out a direct-pressure water taking pipe upwards is formed in the bearing base layer platform, and a bolt or a nut barrel is embedded in the bearing base layer platform according to a combination hole of a conversion platform plate;
the periphery of the conversion platform plate is provided with a preformed hole which is matched with a pre-buried bolt or a nut barrel on the bearing base layer platform, the conversion platform plate is provided with a pipe sealing mounting hole for penetrating a sealing pipe, a feeding hole is arranged at the side of the pipe sealing mounting hole,
the conversion platform is also preset with a connection embedded part of a termination sealing plate, and the termination sealing plate is used for sealing the pipe sealing mounting hole and the feeding hole after pumping water.
2. The progressive direct pressure water intake well closure formation of claim 1, wherein: the lower conical head is of an integral conical tip structure or a conical tip structure combined by multiple lobes.
3. The progressive direct pressure water intake well closure formation of claim 1, wherein: the outer side of the push rod is sleeved with a plurality of guide rings, and the guide rings can enable the inner side wall of the progressive direct-pressure water taking pipe to slide up and down.
4. The progressive direct pressure water intake well closure formation of claim 1, wherein: the upper section and the lower section of the sealing pipe are in screwed butt joint through a pipe sleeve.
5. A method of constructing a progressive straight-pressure water intake well shut-off structure according to claim 1, comprising the steps of:
(1) constructing a bearing base platform, and pressing a gradual-advancing direct-pressure water intake pipe into a soil body on the lower side of the bearing base platform on the bearing base platform;
(2) after the water taking operation is finished, the water taking pipe is pulled back upwards and gradually enters the direct-pressure water taking pipe;
(3) back-dialing the gradually advancing direct-pressure water taking pipe to the planned depth, and suspending back-dialing; the lower cone head on the bottom cone head is pushed out downwards from the upper cone ring body through the push rod, so that the lower cone head is separated, and the bottom cone head forms a lower end through opening, thereby facilitating the integral back-pull of the gradual-in direct-pressure water taking pipe;
(4) the straight pressure water taking pipe is rapidly and continuously pulled back upwards, and the lower conical head is pulled upwards through the recovery rope;
(5) installing a subsequent pumping pipe in the seal pipe, wherein the seal pipe is movably connected on the conversion platform plate;
(6) filling redundant space in the backfilling well along with subsequent pumping;
(7) and judging that the residual water in the well meets the requirements, and implementing a final sealing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911350325.1A CN110984199B (en) | 2019-12-24 | 2019-12-24 | Progressive direct-pressure water intake pipe well sealing structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911350325.1A CN110984199B (en) | 2019-12-24 | 2019-12-24 | Progressive direct-pressure water intake pipe well sealing structure and construction method thereof |
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| CN110984199A true CN110984199A (en) | 2020-04-10 |
| CN110984199B CN110984199B (en) | 2021-03-12 |
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| CN110130378A (en) * | 2019-05-14 | 2019-08-16 | 长江水利委员会长江科学院 | A kind of novel implanted relief well decompression drainage system and method |
| CN110284547A (en) * | 2019-05-13 | 2019-09-27 | 中国华冶科工集团有限公司 | The construction method of intake pipe |
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2019
- 2019-12-24 CN CN201911350325.1A patent/CN110984199B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011256671A (en) * | 2010-06-11 | 2011-12-22 | Ohbayashi Corp | Pumping unit, soft ground improvement method, ground excavation method, contaminated soil purification method and recharge method |
| CN203569575U (en) * | 2013-09-18 | 2014-04-30 | 上海岩土工程勘察设计研究院有限公司 | Plastic blind ditch pipe sandless precipitation well |
| CN203939037U (en) * | 2014-07-01 | 2014-11-12 | 中建八局第三建设有限公司 | A kind of plugging dewatering well device |
| CN206052748U (en) * | 2016-08-29 | 2017-03-29 | 中国建筑第八工程局有限公司 | The quick well-sealing device of dewatering well hydraulic pressure |
| CN107268646A (en) * | 2017-08-04 | 2017-10-20 | 北京建工土木工程有限公司 | A kind of high hydraulic pressure well-covering device for dewatering well and its construction method |
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| CN110984199B (en) | 2021-03-12 |
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