CN113235630B - Pneumatic dewatering method and dewatering device thereof - Google Patents
Pneumatic dewatering method and dewatering device thereof Download PDFInfo
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- CN113235630B CN113235630B CN202110511335.XA CN202110511335A CN113235630B CN 113235630 B CN113235630 B CN 113235630B CN 202110511335 A CN202110511335 A CN 202110511335A CN 113235630 B CN113235630 B CN 113235630B
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- E—FIXED CONSTRUCTIONS
- 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
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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Abstract
The invention discloses a pneumatic precipitation method and a precipitation device thereof, comprising the following steps: 100, arranging a main seepage well in the center of a region to be rainfall; step 200, uniformly arranging at least three satellite infiltration wells around the main infiltration well; and 300, independently performing pneumatic precipitation on the main seepage well and the satellite seepage well. The device comprises a plurality of well pits for forming a main seepage well and a satellite seepage well, wherein a water drawing component which is used for adapting to different diameters of the main seepage well and the satellite seepage well so as to be attached to the side wall of any well pit is arranged in each well pit, and seepage water collected in the water drawing component is pumped out of the well pits through a pneumatic component connected with the water drawing component. The invention ensures the strength of the foundation and improves the dewatering efficiency by matching the plurality of wells; in addition, the invention can be attached to the wells with different sizes to accelerate the absorption of the seepage water of the high-permeability area of the well, and can also support the well structure to prevent the well from collapsing.
Description
Technical Field
The invention relates to the technical field of precipitation engineering, in particular to a pneumatic precipitation method and a precipitation device thereof.
Background
The precipitation engineering refers to excavation of a deep foundation pit in an area with a high underground water level, the underground water inevitably seeps into the foundation pit continuously under the action of pressure difference due to the fact that a water-bearing layer is cut off, if the foundation pit is not subjected to precipitation and drainage work, the foundation pit is soaked, the site construction conditions are poor, the bearing capacity of the foundation is reduced, and phenomena such as sand flowing, piping, slope instability and the like can be caused under the action of hydrodynamic pressure, so that effective precipitation and drainage measures are required to be taken to ensure the construction safety of the foundation pit, and the engineering precipitation is also called.
In the prior art, when the seepage water level in a certain area is reduced, one or more well pits are excavated in the area to be rainfall generally, so that the seepage water is concentrated in the well pits, and the accumulated water in the well pits is pumped out, but the efficiency of pumping the seepage water by one well pit is lower in the scheme, and the firmness of the foundation can be damaged by a plurality of well pits, and even collapse is easily caused.
Disclosure of Invention
The invention aims to provide a pneumatic dewatering method and a dewatering device thereof, and aims to solve the technical problems that in the prior art, one pit has low efficiency of pumping seepage water, and a plurality of pits can destroy the firmness of a foundation and even easily cause collapse.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a pneumatic precipitation method comprising the steps of:
100, arranging a main seepage well in the center of a region to be rainfall;
step 200, uniformly arranging at least three satellite infiltration wells around the main infiltration well;
step 300, independently carrying out pneumatic precipitation on the main penetration well and the satellite penetration well;
wherein the diameter of the satellite infiltration well is smaller than that of the main infiltration well.
As a preferred embodiment of the present invention, the specific operations of step 300 are:
301, uniformly arranging permeation grooves along the side wall of the main permeation well or the satellite permeation well;
302, attaching a permeation collection pipeline to the permeation groove to collect permeation water;
and 303, pressing out the seepage water in the seepage collection pipeline to the outside of the well in a pneumatic mode.
In order to solve the above technical problems, the present invention further provides the following technical solutions:
a water lowering device comprises a plurality of well pits used for forming a main infiltration well and a satellite infiltration well, wherein a water drawing component which is used for adapting to different diameters of the main infiltration well and the satellite infiltration well so as to be attached to the side wall of any one of the well pits is arranged in each well pit, and seepage water collected in the water drawing component is pumped out of the well pits through a pneumatic component connected with the water drawing component.
As a preferable scheme of the present invention, the water drawing assembly includes a suspended support column disposed at the center of the pit, a penetration collection pipe is uniformly disposed around the suspended support column and is configured to slide along a radial direction of the pit until the penetration collection pipe is attached to a sidewall of the pit, and the suspended support column is connected to the penetration collection pipe through a telescopic rod group configured to drive the penetration collection pipe to slide to the sidewall of the pit.
As a preferred scheme of the present invention, the telescopic rod group comprises a first sliding cylinder, one end of which is fixedly connected to the suspended support column, and the other end of the first sliding cylinder is sleeved with one end of a second sliding cylinder in a linear sliding manner, and the other end of the second sliding cylinder is provided with a sealing plate;
the pneumatic assembly comprises a pneumatic cavity which is arranged in the suspended support column and connected with external pneumatic equipment, the pneumatic cavity is communicated with the inner cavity of the first sliding barrel to drive the first sliding barrel and the second sliding barrel to slide relatively, and the sealing plate is connected with the penetration collecting pipeline through a touch locking structure which is used for locking the first sliding barrel and the second sliding barrel when the penetration collecting pipeline slides until the penetration collecting pipeline is attached to the side wall of the well pit.
As a preferred scheme of the present invention, the touch locking structure includes a limit tooth groove formed in the first sliding cylinder, a movable tooth engaged with the limit tooth groove is movably mounted on the second sliding cylinder, at least two sealing sliding rods are linearly slidably mounted on the sealing plate, the sealing sliding rods are fixedly connected to the penetration collection pipeline, a damping hole through which the sealing sliding rods linearly slide is formed in the sealing plate, and the inner cavity of the second sliding cylinder is not communicated with the outside, an anti-false touch elastic member is sleeved on each sealing sliding rod, and two ends of the anti-false touch elastic member are respectively connected to the penetration collection pipeline and the sealing plate;
the device comprises a first sliding barrel, a second sliding barrel, a movable tooth, a limiting hole, a trigger rod, a limiting inclined plate and a limiting device, wherein an installation penetrating groove penetrating through the wall of the second sliding barrel is formed in one end, close to the first sliding barrel, of the second sliding barrel, the movable tooth is installed in the installation penetrating groove in a linear sliding mode through a first elastic reset piece, a locking groove is formed in one side of the movable tooth, a movable block used for clamping the locking groove is installed on one side of the installation penetrating groove in a linear sliding mode through a second elastic reset piece, the trigger rod is installed on the movable block in a linear sliding mode through an installation hole, the limiting hole used for clamping one end of the trigger rod is formed in one side of the installation penetrating groove, the other side of the trigger rod is provided with the action inclined plate used for nesting the sealing sliding rod and extracting the trigger rod from the limiting hole through interaction with the sealing sliding rod.
As a preferable scheme of the invention, a filter screen surface is arranged on one side of the joint surface of the penetration collection pipeline, which is close to the well pit;
the pneumatic assembly further comprises an air pressure cavity arranged on the other side of the penetration collection pipeline, a plurality of rigid sub-plates are fixedly arranged in the inner cavity of the penetration collection pipeline at equal intervals, a first partition plate, a second partition plate and a third partition plate are sequentially arranged on the other side of the inner cavity of the penetration collection pipeline from one side close to the filter screen surface between every two adjacent rigid sub-plates, a water inlet one-way valve is fixedly arranged on the first partition plate, the first partition plate and the third partition plate are fixedly arranged between the adjacent rigid sub-plates, the second partition plate can be linearly and slidably arranged between the adjacent rigid sub-plates, an opening communicated with the air pressure cavity is formed in the third partition plate, the third partition plate is connected with the second partition plate through a deformation pressing elastic piece, and an independent discharge pipe is connected with a space formed among the first partition plate, the second partition plate and the adjacent rigid sub-plates, and a drainage one-way valve is fixedly arranged in the independent discharge pipe.
As a preferable scheme of the present invention, the stiffness coefficient of the deformation pressing elastic member located between different adjacent rigid sub-plates decreases sequentially from top to bottom.
As a preferable scheme of the present invention, the pneumatic chamber is provided with a movable connecting member for communicating with an inner cavity of the second sliding barrel when the sealing plate is attached to the permeate collection pipe.
As a preferable scheme of the present invention, the movable connection member includes a communicating square tube communicatively mounted on the sealing plate, a resistance valve is fixedly mounted in the communicating square tube, the resistance valve is composed of a pair of elastic damping fins abutting against each other to seal the communicating square tube, a damping through hole for nesting the communicating square tube is formed in the pneumatic chamber, and a contact rod for abutting against the elastic damping fins is fixedly mounted in the damping through hole.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the main infiltration well with a larger diameter is arranged, and the satellite infiltration with a smaller diameter is arranged around the main infiltration well, so that the precipitation efficiency is improved by matching a plurality of well pits while the foundation strength is ensured; and the invention not only can accelerate the absorption of the seepage water of the high-permeability area of the well pit by being attached to the well pits with different sizes through the deformation of the structure of the water drawing assembly, but also can be attached to the side wall of the well pit by utilizing the expansion of the structure of the water drawing assembly, thereby supporting the well pit structure and preventing the well pit from collapsing. In (1).
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a top view of an overall structure in an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion B of FIG. 1 according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a pneumatic assembly according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-well pit; 2-a water drawing component; 3-a pneumatic assembly;
21-suspended supporting columns; 22-a permeate collection conduit; 23-a first shuttle; 24-a second shuttle; 25-sealing plate; 26-touching the locking structure; 27-a filter screen surface;
31-a pneumatic chamber; 32-rigid section plates; 33-a first separator; 34-a second separator; 35-a third separator; 36-a water inlet one-way valve; 37-deforming the pressing elastic member; 38-independent drain; 39-a movable connection; 310-a drain check valve;
261-limiting tooth grooves; 262-movable teeth; 263-sealing the sliding rod; 264-false touch prevention elastic parts; 265-installing a through groove; 266-a first resilient return member; 267-a locking groove; 268 — a second resilient return member; 267-a locking groove; 269-movable block; 2610-trigger lever; 2611-effect sloping plate; 2612-limiting pore;
391-connecting square pipes; 392-a resistance valve; 393-damping perforations; 394-contact bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in figure 1, the invention provides a pneumatic precipitation method and a precipitation device thereof: the method comprises the following steps:
100, arranging a main seepage well in the center of a region to be rainfall;
step 200, uniformly arranging at least three satellite infiltration wells around the main infiltration well;
step 300, independently performing pneumatic precipitation on the main seepage well and the satellite seepage well;
wherein the diameter of the satellite infiltration well is smaller than that of the main infiltration well. The specific operation of step 300 is:
301, uniformly arranging permeation grooves along the side wall of the main permeation well or the satellite permeation well;
302, attaching a permeation collection pipeline to the permeation groove to collect permeation water;
303, pressing out the seepage water in the seepage collection pipeline to the outside of the well in a pneumatic mode
According to the invention, the main infiltration well with a larger diameter is arranged, and the satellite infiltration with a smaller diameter is arranged around the main infiltration well, so that the precipitation efficiency is improved by matching the multiple well pits 1 while the foundation strength is ensured, and the contact area between the infiltration area and the infiltration collecting pipeline 22 is increased by the infiltration grooves.
As shown in fig. 1, 2, 3 and 4, the present invention further provides a water lowering device, which includes a plurality of wells 1 for forming a main permeable well and a satellite permeable well, a water drawing assembly 2 is disposed in each well 1 for adapting to different diameters of the main permeable well and the satellite permeable well so as to be attached to a sidewall of any one of the wells 1, and the permeated water collected in the water drawing assembly 2 is pumped out of the well 1 through a pneumatic assembly 3 connected to the water drawing assembly 2.
According to the invention, through the deformation of the structure of the water drawing component 2, the drawing of the seepage water of the high-permeability area of the well pit 1 is accelerated by adhering to the well pits 1 with different sizes, and the opening of the structure of the water drawing component 2 can be utilized to adhere to the side wall of the well pit 1, so that the structure of the well pit 1 is supported, and the well pit 1 is prevented from collapsing.
The water drawing assembly 2 comprises a suspension support column 21 arranged at the center of the well pit 1, permeation collecting pipelines 22 used for sliding along the radial direction of the well pit 1 until being attached to the side wall of the well pit 1 are uniformly arranged around the suspension support column 21, and the suspension support column 21 is connected with the permeation collecting pipelines 22 through telescopic rod groups used for driving the permeation collecting pipelines 22 to slide to the side wall of the well pit 1.
Open through a plurality of infiltration collecting pipe way 22 and close the cooperation, not only supported the lateral wall of pit 1, and can drive infiltration collecting pipe way 22 on the infiltration slot that pit 1 predetermines to increase infiltration soil layer and infiltration collecting pipe way 22's area of contact, thereby faster speed is taken out the infiltration water.
The telescopic rod group comprises a first sliding barrel 23, one end of the first sliding barrel 23 is fixedly connected with the suspended supporting column 21, one end of a second sliding barrel 24 is sleeved at the other end of the first sliding barrel 23 in a linear sliding mode, and a sealing plate 25 is installed at the other end of the second sliding barrel 24; the pneumatic assembly 3 comprises a pneumatic cavity 31 which is arranged in the suspended support column 21 and connected with external pneumatic equipment, the pneumatic cavity 31 is communicated with an inner cavity of the first sliding barrel 23 to drive the first sliding barrel 23 and the second sliding barrel 24 to slide relatively under pneumatic pressure, and the sealing plate 25 is connected with the penetration collection pipeline 22 through a touch locking structure 26 which is used for locking the first sliding barrel 23 and the second sliding barrel 24 when the penetration collection pipeline 22 slides until the penetration collection pipeline is attached to the side wall of the pit 1.
When the air pressure in the pneumatic cavity 31 increases, the air pressure of the combined body formed by the first sliding barrel 23 and the second sliding barrel 24 increases, and the air pressure in the combined body increases, so that the first sliding barrel 23 and the second sliding barrel 24 slide relatively to increase the volume of the inner cavity of the combined body until the penetration collection pipeline 22 is driven to the penetration groove, at this time, the penetration collection pipeline 22 cannot move outwards along with the combined body, so that the penetration collection pipeline 22 remains static, and the second sliding barrel 24 continues to move outwards until the locking structure 26 is touched, so that the first sliding barrel 23 and the second sliding barrel 24 are locked.
The touch locking structure 26 includes a limiting toothed groove 261 arranged in the first sliding barrel 23, a movable tooth 262 clamped into the limiting toothed groove 261 is movably mounted on the second sliding barrel 24, at least two sealing slide rods 263 are linearly slidably mounted on the sealing plate 25, the sealing slide rods 263 are fixedly connected with the penetration collection pipeline 22, a damping hole for the sealing slide rods 263 to linearly slide and preventing the inner cavity of the second sliding barrel 24 from being communicated with the outside is formed in the sealing plate 25, an anti-false-touch elastic member 264 is sleeved on the sealing slide rods 263, and two ends of the anti-false-touch elastic member 264 are respectively connected to the penetration collection pipeline 22 and the sealing plate 25; an installation through groove 265 penetrating the wall of the second sliding barrel 24 is arranged at one end of the second sliding barrel 24 close to the first sliding barrel 23, the movable teeth 262 are linearly slidably mounted in the mounting through-grooves 265 by first elastic restoring members 266, a locking groove 267 is formed at one side of the movable tooth 262, a movable block 269 for engaging with the locking groove 267 is linearly slidably installed at one side of the installation through groove 265 via a second elastic restoring member 268, a trigger bar 2610 is linearly slidably installed on the movable block 269 through an installation hole, a limiting hole 2612 for clamping one end of the trigger bar 2610 is arranged at one side of the mounting through groove 265, an action inclined plate 2613 for nesting the sealing slide rod 263 and pulling the trigger bar 2610 out of the limiting hole 2612 through the interaction with the sealing slide rod 263 is arranged on the other side of the trigger bar 2610.
The locking principle of the touch locking structure 26 is as follows: when the permeate collection pipe 22 is kept still and the second slide 24 continues to move outward, the sealing sliding rod 263 fixedly connected to the permeate collection pipe 22 is also kept still, resulting in relative sliding between the sealing sliding rod 263 and the sealing plate 25, i.e., relative sliding movement, between the sealing slide 263 and the second slide 24, causes the sealing slide 263 to interfere with the ramp plate 2613, as shown in figure 2, when the actuation ramp 2613 interacts with the bottom end of the seal slide 263, the trigger bar 2610 moves inwardly, causing the outer end of the trigger bar 2610 to disengage from the limit hole 2612 and the mounting hole, and is installed so that the movable block 269 is not restricted by the trigger bar 2610, the movable block 269 is automatically snapped into the locking groove 267 by the second elastic reset piece 268, causing the movable tooth 262 to be locked into the mounting through-slot 265, thereby restricting relative sliding between the second spool 24 and the first spool 23.
The significance of indirectly controlling the movable teeth 262 through the movable block 269 is that when the second sliding cylinder 24 and the first sliding cylinder 23 slide relatively, the movable teeth 262 may be located in a relatively flat area in the limiting tooth slot 261, and at this time, the fixed movable teeth 262 cannot play a role in locking the second sliding cylinder 24 and the first sliding cylinder 23, and the movable teeth 262 can be locked at a fixed position through movable clamping of the movable block 269, so that the movable teeth 262 are controlled to be exactly located at an effective position.
Wherein, a filter screen surface 27 is arranged on one side of the joint surface of the penetration collection pipeline 22 close to the well 1; the pneumatic assembly 3 further comprises an air pressure cavity 31 arranged on the other side of the penetration collection pipeline 22, a plurality of rigid sub-plates 32 are fixedly arranged in the inner cavity of the penetration collection pipeline 22 at equal intervals, a first partition plate 33, a second partition plate 34 and a third partition plate 35 are sequentially arranged from one side to the other side of the filter screen surface 27 between every two adjacent rigid sub-plates 32, a water inlet check valve 36 is fixedly arranged on the first partition plate 33, the first partition plate 33 and the third partition plate 35 are fixedly arranged between the adjacent rigid sub-plates 32, the second partition plate 34 can be linearly and slidably arranged between the adjacent rigid sub-plates 32, an opening communicated with the air pressure cavity 31 is formed in the third partition plate 35, the third partition plate 35 is connected with the second partition plate 34 through a deformation pressing elastic piece 37, and the first partition plate 33, An independent discharge pipe 38 is connected to a space formed between the second partition plate 34 and the adjacent four rigid plates 32, and a discharge check valve 310 is fixedly installed in the independent discharge pipe 38. The coefficient of stiffness of the deformation pressing elastic members 37 located between different adjacent rigid sub-plates 32 decreases from top to bottom. The pneumatic chamber 31 is provided with a movable connecting piece 39 which is used for communicating with the inner cavity of the second sliding barrel 24 when the sealing plate 25 is attached to the permeation collection pipeline 22.
When the permeation collection pipeline 22 remains still and the second sliding cartridge 24 continues to move outwards, the sealing plate 25 moves along with the second sliding cartridge 24 until the second sliding cartridge 24 fits onto the permeation collection pipeline 22, at this time, the air pressure cavity 31 is indirectly communicated with the pneumatic cavity 31 through the movable connecting piece 39, when the air pressure cavity 31 changes along with the air pressure of the pneumatic cavity 31, the change of the air pressure in the air pressure cavity 31 will drive the volume between the second partition 34 and the third partition 35 to change along with the change of the volume between the second partition 34 and the third partition 35, the change of the air pressure is a driving force when the volume between the second partition 34 and the third partition 35 changes along with the change of the volume, the deformation pressing elastic piece 37 connected between the second partition 34 and the third partition 35 is used as a resistance to the movement, when the stiffness coefficient of the deformation pressing elastic piece 37 is higher, the movement between the second partition 34 and the third partition 35 is more difficult, resulting in that the volume between the second partition 34 and the third partition 35 changes less, resulting in a smaller amount of water being pressed out.
The significance of the above scheme lies in that, because the seepage volume that permeates water in the well pit 1 is different, the lateral wall seepage volume below general well pit 1 is big more, so this scheme is through carrying out the gradient setting to the size of the stubborn coefficient of strength of the elastic component 37 of exerting pressure to deforming to draw water to each part in a gradient, and then avoid the seepage water to take out the collapse that too much leads to.
The movable connecting piece 39 includes a communicating square pipe 391 which is communicated with and mounted on the sealing plate 25, a resistance valve 392 is fixedly mounted in the communicating square pipe 391, the resistance valve 392 is composed of a pair of elastic damping sheets which are mutually abutted to seal the communicating square pipe 391, a damping perforation 393 which is used for nesting the communicating square pipe 391 is opened on the air pressure chamber 31, and an abutting rod 394 which is used for abutting against the elastic damping sheets is fixedly mounted on the damping perforation 393.
The communication square tube 391 is sleeved into the damping bore 393 such that the resistance rod 394 presses against the resistance valve 392, causing the resistance valve 392 to automatically open for pneumatic communication.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (6)
1. A pneumatic precipitation method, characterized in that: the method comprises the following steps:
100, arranging a main seepage well in the center of a region to be rainfall;
200, uniformly arranging at least three satellite seepage wells around the main seepage well;
step 300, independently performing pneumatic precipitation on the main seepage well and the satellite seepage well;
wherein the diameter of the satellite infiltration well is smaller than that of the main infiltration well;
the specific operation of step 300 is:
301, uniformly arranging permeation grooves along the side wall of the main permeation well or the satellite permeation well;
302, attaching a permeation collection pipeline to the permeation groove to collect permeation water;
303, pressing out the seepage water in the seepage collection pipeline to the outside of the well in a pneumatic mode;
the device comprises a plurality of well pits (1) for forming a main seepage well and a satellite seepage well, wherein water drawing assemblies (2) which are used for adapting to different diameters of the main seepage well and the satellite seepage well so as to be attached to the side wall of any one of the well pits (1) are arranged in the well pits (1), and seepage water collected in the water drawing assemblies (2) is pumped out of the well pits (1) through pneumatic assemblies (3) connected with the water drawing assemblies (2);
the water drawing assembly (2) comprises a suspended support column (21) arranged at the center of the well pit (1), permeation collection pipelines (22) which are used for sliding along the radial direction of the well pit (1) until being attached to the side wall of the well pit (1) are uniformly arranged around the suspended support column (21), and the suspended support column (21) is connected with the permeation collection pipelines (22) through telescopic rod groups which are used for driving the permeation collection pipelines (22) to slide to the side wall of the well pit (1);
the telescopic rod group comprises a first sliding barrel (23) with one end fixedly connected to the suspended support column (21), one end of a second sliding barrel (24) is sleeved at the other end of the first sliding barrel (23) in a linear sliding manner, and a sealing plate (25) is installed at the other end of the second sliding barrel (24);
the pneumatic assembly (3) comprises a pneumatic cavity (31) which is arranged in the suspended support column (21) and connected with external pneumatic equipment, the pneumatic cavity (31) is communicated with an inner cavity of the first sliding barrel (23) to drive the first sliding barrel (23) and the second sliding barrel (24) to slide relative to each other through pneumatic pressure, and the sealing plate (25) is connected with the penetration collection pipeline (22) through a touch locking structure (26) which is used for locking the first sliding barrel (23) and the second sliding barrel (24) when the penetration collection pipeline (22) slides until being attached to the side wall of the pit (1).
2. A pneumatic precipitation method according to claim 1, characterized in that: the touch locking structure (26) comprises a limiting toothed groove (261) arranged in the first sliding barrel (23), a movable tooth (262) clamped into the limiting toothed groove (261) is movably mounted on the second sliding barrel (24), at least two sealing sliding rods (263) are linearly slidably mounted on the sealing plate (25), the sealing sliding rods (263) are fixedly connected with the penetration collection pipeline (22), a damping hole which is used for the sealing sliding rods (263) to linearly slide and does not enable the inner cavity of the second sliding barrel (24) to be communicated with the outside is formed in the sealing plate (25), an anti-false-touch elastic piece (264) is sleeved on the sealing sliding rods (263), and two ends of the anti-false-touch elastic piece (264) are respectively connected to the penetration collection pipeline (22) and the sealing plate (25);
an installation through groove (265) penetrating through the wall of the second sliding barrel (24) is formed in one end, close to the first sliding barrel (23), of the second sliding barrel (24), the movable tooth (262) is linearly slidably installed in the installation through groove (265) through a first elastic reset piece (266), a locking groove (267) is formed in one side of the movable tooth (262), a movable block (269) used for clamping the locking groove (267) is linearly slidably installed on one side of the installation through groove (265) through a second elastic reset piece (268), a trigger rod (2610) is linearly slidably installed on the movable block (269) through an installation hole, a limiting hole (2612) used for clamping one end of the trigger rod (2610) is formed in one side of the installation through groove (265), a sealing slide rod (263) is formed in the other side of the trigger rod (2610) in a nested mode, and the trigger rod (2610) is formed through interaction with the sealing slide rod (263) An operation inclined plate (2611) pulled out from the limiting hole (2612).
3. A pneumatic precipitation method according to claim 2, characterized in that: a filter screen surface (27) is arranged on one side, close to the binding surface of the pit (1), of the permeation collection pipeline (22);
the pneumatic assembly (3) further comprises an air pressure cavity which is arranged on the other side of the permeation collection pipeline (22), a plurality of rigid sub-plates (32) are fixedly arranged in the inner cavity of the permeation collection pipeline (22) at equal intervals, a first partition plate (33), a second partition plate (34) and a third partition plate (35) are sequentially arranged on one side of the filter screen surface (27) from near to between every two adjacent rigid sub-plates (32), a water inlet one-way valve (36) is fixedly arranged on the first partition plate (33), the first partition plate (33) and the third partition plate (35) are fixedly arranged between the adjacent rigid sub-plates (32), the second partition plate (34) can be linearly and slidably arranged between the adjacent rigid sub-plates (32), an opening communicated with the air pressure cavity is formed in the third partition plate (35), and the third partition plate (35) is connected with the second partition plate (34) through a deformation pressure applying elastic piece (37), an independent discharge pipe (38) is connected to a space formed between the first partition plate (33), the second partition plate (34) and the adjacent four rigid partition plates (32), and a discharge check valve (310) is fixedly mounted in the independent discharge pipe (38).
4. A pneumatic precipitation method according to claim 3, wherein: the coefficient of stiffness of the deformation pressing elastic pieces (37) positioned between different adjacent rigid sub-plates (32) is reduced from top to bottom in sequence.
5. A pneumatic precipitation method according to claim 3, wherein: and the air pressure cavity is provided with a movable connecting piece (39) which is used for communicating with the inner cavity of the second sliding barrel (24) when the sealing plate (25) is attached to the permeation collection pipeline (22).
6. A pneumatic precipitation method according to claim 5, characterized in that: the movable connecting piece (39) comprises a communicating square pipe (391) which is communicated and installed on the sealing plate (25), a resistance valve (392) is fixedly installed in the communicating square pipe (391), the resistance valve (392) consists of a pair of elastic damping sheets which are mutually butted to seal the communicating square pipe (391), a damping perforation (393) which is used for nesting the communicating square pipe (391) is arranged on the air pressure cavity, and a butting rod (394) which is used for butting the elastic damping sheets is fixedly installed on the damping perforation (393).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110511335.XA CN113235630B (en) | 2021-05-11 | 2021-05-11 | Pneumatic dewatering method and dewatering device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110511335.XA CN113235630B (en) | 2021-05-11 | 2021-05-11 | Pneumatic dewatering method and dewatering device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113235630A CN113235630A (en) | 2021-08-10 |
| CN113235630B true CN113235630B (en) | 2022-08-23 |
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| CN104947701B (en) * | 2015-07-07 | 2017-04-26 | 冯克俊 | Ground pit rainfall combination deep well device |
| CN105839655B (en) * | 2016-05-12 | 2017-12-26 | 同济大学 | The cleaning base pit dewatering system that a kind of base pit dewatering couples with contaminated site regulation |
| DE202017101779U1 (en) * | 2017-03-28 | 2017-06-02 | Funke Kunststoffe Gmbh | , sedimentation |
| CN109577342B (en) * | 2018-11-15 | 2021-04-06 | 江苏科技大学 | Swift supporting device of circular pit construction |
| CN110552362A (en) * | 2019-09-16 | 2019-12-10 | 中铁十二局集团有限公司 | Foundation pit dewatering construction method of mixed well and light well in confined water stratum |
| CN111827327B (en) * | 2020-07-15 | 2021-09-10 | 浙江恒昌建设有限公司 | Soft soil foundation layered dewatering construction structure and construction method |
| CN212926120U (en) * | 2020-07-31 | 2021-04-09 | 福建省燕城建设工程有限公司 | A drainage device for foundation ditch |
| CN111749244A (en) * | 2020-07-31 | 2020-10-09 | 中信国安建工集团有限公司 | Construction device and construction method for safe construction of underground structure |
| CN212320837U (en) * | 2020-08-01 | 2021-01-08 | 江苏广传建设有限公司 | Monitoring device for dewatering of excavation well point of bearing platform foundation pit |
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