CN219343270U

CN219343270U - Dewatering well construction device

Info

Publication number: CN219343270U
Application number: CN202320365906.8U
Authority: CN
Inventors: 许建清; 黄小红; 黄璜; 王志平; 徐略; 赖旭俊; 何涛; 李骥
Original assignee: Guangdong Liang Liang Construction Engineering Co ltd
Current assignee: Guangdong Liang Liang Construction Engineering Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-07-14
Anticipated expiration: 2033-02-28

Abstract

The application relates to the technical field of precipitation well, discloses a precipitation well construction equipment, including auxiliary sleeve and downcomer, the auxiliary sleeve outer wall is provided with a plurality of horizontal scale grooves, and each horizontal scale groove equidistance sets up, and downcomer sliding connection is in auxiliary sleeve's inner wall, and auxiliary sleeve perpendicular to sump pit's bottom, auxiliary sleeve's one end insert well drilling, for traditional precipitation well construction, the device of this application can measure the degree of depth of well drilling before the downcomer to in time adjust the degree of depth of well drilling, thereby reduced the engineering volume of precipitation well construction.

Description

Dewatering well construction device

Technical Field

The application belongs to the technical field of dewatering wells, and particularly relates to a dewatering well construction device.

Background

In the prior art, in order to drain groundwater in the construction process of a dewatering well and reduce the possibility of damage of the groundwater to a basement bottom plate structure, drilling holes are often required to be drilled at the bottom of a water collecting well of the basement; in the drilling process, a drilling machine is required to be used for punching a preset point, and then a series of projects such as slurry replacement, water descending pipe, well pipe inclination adjustment, filter material filling, well flushing by a well flushing pump, well drilling depth measurement, capping and the like are carried out on the punched hole, so that a precipitation well is finally built, wherein if the measured well drilling depth does not meet the specified requirement, the projects are required to be re-executed.

Accordingly, the inventors considered that the amount of work for existing precipitation well construction is large in the above-described related art.

Disclosure of Invention

In order to reduce the engineering volume of precipitation well construction, this application provides a precipitation well construction equipment.

The technical problem to be solved in the application is realized by adopting the following technical scheme:

the utility model provides a precipitation well construction equipment, includes auxiliary sleeve and downcomer, the auxiliary sleeve outer wall is provided with a plurality of horizontal scale grooves, and each horizontal scale groove equidistance sets up, downcomer sliding connection is in auxiliary sleeve's inner wall, auxiliary sleeve perpendicular to the bottom of sump pit, auxiliary sleeve's one end inserts the well drilling.

Through the technical scheme, the water reducing pipe is used as a well pipe of the well drilling, plays a role in supporting the side wall of the well drilling and guiding groundwater to flow out of the water collecting well; the auxiliary sleeve is used for assisting the downcomer to be inserted into the well; after the drilling is drilled out, the auxiliary sleeve is perpendicular to the bottom of the water collecting well and is inserted into the drilling well, engineering personnel observe a horizontal scale groove on the outer wall of the auxiliary sleeve, and the drilling well depth is measured; if the drilling depth is insufficient, a drilling machine can be used for continuously punching the bottom of the water collecting well, when the drilling depth reaches a preset value, a constructor inserts a water reducing pipe into the auxiliary sleeve and washes the well by using a well washing pump, and finally the auxiliary sleeve is pulled out from the bottom of the water collecting well, so that the effect of recycling the auxiliary sleeve is realized; compared with the traditional drilling construction, the device can measure the drilling depth before the water pipe descends, and timely adjust the drilling depth, so that the engineering quantity for reducing the construction of the precipitation well is reduced.

Optionally, one end of the auxiliary sleeve, which is far away from the bottom of the water collecting well, is fixedly connected with a hoisting ring.

Through above-mentioned technical scheme, the one end fixedly connected with lifting ring of the bottom of collecting pit is kept away from to auxiliary sleeve, and constructor can use lifting device to hoist auxiliary sleeve to the preset position to dewatering well construction is convenient for.

Optionally, the one end fixedly connected with that the auxiliary sleeve kept away from the hoist and mount ring keeps off the soil pipe, the envelope body that keeps off the soil pipe is the inverted round platform body, the minimum bore that keeps off the soil pipe is greater than the external diameter of downcomer.

According to the technical scheme, the soil retaining pipe is fixedly connected to one end, far away from the lifting ring, of the auxiliary sleeve, the enveloping body of the soil retaining pipe is in the shape of the inverted circular truncated cone, when the auxiliary sleeve is inserted into the well drilling, flowing soil at the bottom of the water collecting well can obstruct the auxiliary sleeve from being inserted into the deep part of the well drilling, the stress area of the bottom of the auxiliary sleeve is reduced by the soil retaining pipe, the pressure intensity of the inserted well drilling is improved, and therefore the auxiliary sleeve is convenient to be inserted into the well drilling; the minimum caliber of the soil blocking pipe is larger than the outer diameter of the water falling pipe, so that the auxiliary sleeve is conveniently pulled out from the bottom of the water collecting well.

Optionally, the inner wall of the auxiliary sleeve is provided with a drainage groove.

Through above-mentioned technical scheme, when the downcomer inserts in auxiliary sleeve, the downcomer can extrude the drainage groove with water and the flow soil in the auxiliary sleeve, has reduced the water and the flow soil in the auxiliary sleeve and has hindered the possibility that the downcomer inserts auxiliary sleeve.

Optionally, a plurality of grab handles are fixedly connected to the lifting ring.

Through above-mentioned technical scheme, a plurality of grab handles do benefit to constructor adjustment auxiliary sleeve's gradient, make auxiliary sleeve perpendicular to the bottom of sump pit all the time to make the downcomer also perpendicular to the bottom of sump pit, reduce the downcomer and lead to the possibility that drainage effect is not good because of being non-perpendicular to sump pit bottom.

Optionally, after the auxiliary sleeve is taken out from the bottom of the water collecting well, one end of the downcomer away from the bottom of the water collecting well is sleeved with a limit sleeve, and the bottom end of the limit sleeve is fixedly connected to the bottom of the water collecting well.

Through above-mentioned technical scheme, after auxiliary sleeve is taken out from the sump pit bottom, still need fix the downcomer, reduce the downcomer and receive the soil layer of flowing of sump pit bottom and influence and incline the possibility, limit sleeve cover is established in the one end that the sump pit bottom was exposed to limit sleeve's bottom fixed connection in the bottom of sump pit to play the effect of restriction sump pit for the bottom motion of sump pit.

Optionally, the one end that auxiliary sleeve kept away from the hoist and mount ring fixedly connected with bulldozing awl, a plurality of water slots have been seted up to the lateral wall of bulldozing awl.

Through the technical scheme, the bulldozer is used for reducing the stress area of the bottom of the auxiliary sleeve, improving the pressure for inserting the auxiliary sleeve into the well, facilitating the auxiliary sleeve to be inserted into the well, and a plurality of water outlet slits formed on the side wall of the bulldozer are used for guiding water and flowing soil in the downcomer to flow out of the downcomer; in this scheme, auxiliary sleeve plays the effect of restriction downcomer motion relative to the bottom of sump pit simultaneously, and auxiliary sleeve need not to be taken out from the bottom of sump pit.

Optionally, the auxiliary sleeve is made of galvanized steel.

Through above-mentioned technical scheme, auxiliary sleeve is made by galvanized steel, has better anticorrosive and structural strength is higher.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the downcomer serves as a well pipe of the well, plays a role in supporting the side wall of the well and guiding groundwater to flow out of the water collecting well; the auxiliary sleeve is used for assisting the downcomer to be inserted into the well; after the drilling is drilled out, the auxiliary sleeve is perpendicular to the bottom of the water collecting well and is inserted into the drilling well, engineering personnel observe a horizontal scale groove on the outer wall of the auxiliary sleeve, and the drilling well depth is measured; if the drilling depth is insufficient, a drilling machine can be used for continuously punching the bottom of the water collecting well, when the drilling depth reaches a preset value, a constructor inserts a water reducing pipe into the auxiliary sleeve and washes the well by using a well washing pump, and finally the auxiliary sleeve is pulled out from the bottom of the water collecting well, so that the effect of recycling the auxiliary sleeve is realized; compared with the traditional drilling construction, the device can measure the drilling depth before the water pipe descends, and timely adjust the drilling depth, so that the engineering quantity for reducing the construction of the precipitation well is reduced.

2. One end fixedly connected with lifting ring of the bottom of auxiliary sleeve keeping away from the sump pit, constructor can use lifting device to hoist auxiliary sleeve to the preset position to the construction of precipitation well of being convenient for.

3. The soil retaining pipe is fixedly connected to one end of the auxiliary sleeve, which is far away from the lifting ring, and the enveloping body of the soil retaining pipe is in an inverted circular truncated cone shape, when the auxiliary sleeve is inserted into the well drilling, the bottom soil flowing of the water collecting well can obstruct the auxiliary sleeve from being inserted into the well drilling deep, the stress area of the bottom of the auxiliary sleeve is reduced, the pressure intensity of the inserted well drilling is improved, and therefore the auxiliary sleeve is convenient to be inserted into the well drilling; the minimum caliber of the soil blocking pipe is larger than the outer diameter of the water falling pipe, so that the auxiliary sleeve is conveniently pulled out from the bottom of the water collecting well.

Drawings

FIG. 1 is a schematic view of a dewatering well construction device connected with a water collecting well in an embodiment of the application;

FIG. 2 is a cross-sectional view of A-A of FIG. 1;

FIG. 3 is a schematic structural view of a dewatering well construction device according to an embodiment of the present disclosure;

FIG. 4 is a cross-sectional view of a dewatering well construction apparatus according to an embodiment of the present application;

FIG. 5 is a schematic view of an auxiliary sleeve according to a first embodiment of the present disclosure;

FIG. 6 is a schematic view of a downcomer connected water collection well according to an embodiment of the present application;

fig. 7 is a front view of a dewatering well construction apparatus according to a second embodiment of the present application.

Reference numerals illustrate:

100. a water collection well; 101. a flowing soil layer; 200. drilling a well; 300. a well washing pump; 400. an underground water layer; 1. an auxiliary sleeve; 11. a horizontal scale groove; 12. a hoisting ring; 13. a soil blocking pipe; 14. drainage grooves; 15. a grab handle; 16. a bulldozing cone; 17. a water outlet seam; 2. a downcomer; 3. and a limit sleeve.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

The embodiment of the application discloses a precipitation well construction device for reduce precipitation well construction's engineering volume.

Example 1

Referring to fig. 1 and 2, a dewatering well construction device comprises an auxiliary sleeve 1 and a dewatering pipe 2, wherein the dewatering pipe 2 is a DN200 pipeline in the example, and has strong corrosion resistance, and the dewatering pipe 2 is used for guiding water in a water collecting well 100 to flow into an underground water layer 400 and draining accumulated water in the water collecting well 100; the auxiliary sleeve 1 is used for assisting the insertion of the downcomer 2 into the pre-drilled well 200; the auxiliary sleeve 1 is made of galvanized steel, has good corrosion resistance and high structural strength; the auxiliary sleeve 1 is perpendicular to the bottom of the water collecting well 100, one end of the auxiliary sleeve 1 is inserted into a preset well drilling 200 at the bottom of the water collecting well 100, the water reducing pipe 2 is connected to the auxiliary sleeve 1 in a sliding manner, a constructor washes the inside of the water reducing pipe 2 by using the well washing pump 300, and after well washing is finished, the auxiliary sleeve 1 can be pulled out from the bottom of the water collecting well 100, so that the effect of recycling the auxiliary sleeve 1 is realized; the auxiliary sleeve 1 outer wall is provided with a plurality of horizontal scale grooves 11, each horizontal scale groove 11 equidistance sets up, constructor inserts auxiliary sleeve 1 back of well drilling 200, can directly measure the degree of depth of well drilling 200 through horizontal scale groove 11, if the degree of depth of well drilling 200 is not enough, constructor uses rig (not shown in the figure) to punch towards the depths of well drilling 200, when the degree of depth of well drilling 200 has reached the predetermined value, constructor inserts downcomer 2 and uses wash pump 300 to wash the well again towards auxiliary sleeve 1 inside, for traditional precipitation well construction, the device of this application can measure the actual degree of depth of well drilling 200 before downcomer 2 to in time adjust the actual degree of depth of well drilling 200, reduced the engineering volume of well drilling 200 construction, reduced because of the likelihood of the repetition construction of well drilling 200 degree of depth is not enough.

Preferably, each horizontal scale groove 11 is marked with a corresponding depth marking, further facilitating the construction personnel to measure the actual depth of the well 200 prior to the downcomer 2.

Referring to fig. 2 and 3, a hoisting ring 12 is fixedly connected to one end of the auxiliary sleeve 1, which is far away from the bottom of the water collection well 100, and after a constructor drills out the well 200 toward the bottom of the water collection well 100, the constructor can hoist the auxiliary sleeve 1 into the well 200 through the hoisting ring 12 by using hoisting equipment, thereby improving convenience of construction; the hoisting ring 12 is fixedly connected with a plurality of grab handles 15, the auxiliary sleeve 1 is hoisted into the well 200, constructors are also required to adjust the inclination of the auxiliary sleeve 1, so that the auxiliary sleeve 1 is always vertical to the bottom of the water collecting well 100, in particular, the constructors can judge whether the auxiliary sleeve 1 is vertical to the bottom of the water collecting well 100 through the horizontal scale grooves 11, when the constructors hold the grab handles 15, so that the horizontal scale grooves 11 are parallel to the bottom of the water collecting well 100, the auxiliary sleeve 1 is vertical to the bottom of the water collecting well 100 at this time, compared with the traditional construction mode, the process of measuring verticality by using a horizontal measuring instrument is omitted, and the engineering quantity of dewatering well construction is further reduced; when the auxiliary sleeve 1 is perpendicular to the bottom of the water collection well 100, the water falling pipe 2 which is subsequently inserted into the auxiliary sleeve 1 is also perpendicular to the bottom of the water collection well 100, thereby reducing the possibility that the water falling pipe 2 is not perpendicular to the bottom of the water collection well 100 to cause poor water drainage effect, and reducing the possibility that the water falling pipe 2 falls down and sinks into the flowing soil layer 101 due to inclination of the water falling pipe 2 relative to the bottom of the water collection well 100 after the auxiliary sleeve 1 is withdrawn from the bottom of the water collection well 100.

Referring to fig. 2 and 4, a soil retaining pipe 13 is fixedly connected to one end of the auxiliary sleeve 1 far away from the lifting ring 12, an enveloping body of the soil retaining pipe 13 is in an inverted truncated cone shape, when the auxiliary sleeve 1 is inserted into the well 200, flowing soil in the flowing soil layer 101 collapses to block the well 200, the auxiliary sleeve is prevented from being inserted into the deep part of the well 200, the soil retaining pipe 13 reduces the stress area of the bottom of the auxiliary sleeve 1, and the pressure intensity of the auxiliary sleeve 1 inserted into the well 200 is improved, so that the auxiliary sleeve 1 is convenient to be inserted into the well 200; the minimum diameter of the earth blocking pipe 13 is larger than the outer diameter of the downcomer 2, reducing the possibility of carrying the downcomer 2 out of the auxiliary sleeve 1 when it is withdrawn from the bottom of the well 100.

Referring to fig. 4 and 5, the inner wall of the auxiliary sleeve 1 is further provided with a plurality of drainage grooves 14, and when the downcomer 2 is slidably inserted into the auxiliary sleeve 1, the drainage grooves 14 can guide water and flowing soil extruded by the downcomer 2 to the outside of the auxiliary sleeve 1, thereby reducing the possibility that the water and the flowing soil in the auxiliary sleeve 1 prevent the downcomer 2 from being inserted into the auxiliary sleeve 1; preferably, after the auxiliary sleeve 1 is inserted into the downcomer 2, constructors clean the flowing soil in the drainage groove 14 and then inject lubricating liquid, so that the separation difficulty of the auxiliary sleeve 1 and the downcomer 2 can be reduced.

Referring to fig. 6, after the auxiliary sleeve 1 is withdrawn from the bottom of the water collection well 100, concrete is timely injected into the gap between the well 200 and the downcomer 2 to improve the stability of the downcomer 2 and reduce the possibility of movement of the downcomer 2 relative to the bottom of the water collection well 100; at this time, the one end cover that the downcomer 2 kept away from the bottom of sump pit 100 is equipped with stop sleeve 3, and stop sleeve's 3 bottom fixed connection is in the bottom of sump pit 100, reduces the possibility that downcomer 2 inclines because of being influenced by the soil layer 101 that flows of sump pit 100 bottom, further reduces the possibility that downcomer 2 moves for the bottom of sump pit 100.

The implementation principle of this embodiment is as follows:

the constructor uses the rig to beat the well drilling 200 towards the bottom of the water collecting well 100, use the hoisting equipment to hoist the auxiliary sleeve 1 into the well drilling 200 through the hoisting ring 12, the constructor holds the grab handle 15, adjust the inclination of the auxiliary sleeve 1 relative to the bottom of the water collecting well 100, make the auxiliary sleeve 1 vertically insert into the well drilling 200, observe the horizontal scale groove 11 of the auxiliary sleeve 1 at the same time in this process, measure the actual depth of the well drilling 200 at this moment, when the depth of the well drilling 200 is insufficient, use the rig to deepen the well drilling 200 in time, insert the auxiliary sleeve 1 into the well drilling 200 of suitable depth, then insert the downcomer 2 into the auxiliary sleeve 1, use the well washing pump 300 to wash out the flowing soil and the blocking object in the downcomer 2, after the well washing, hoist the auxiliary sleeve 1 out, fill concrete towards the space between the well drilling 200 and the downcomer 2, finally set up the limit sleeve 3 at one end of the downcomer 2 far away from the well drilling 200 for sealing, make the well completion.

Example two

On the basis of the first embodiment, referring to fig. 7, one end of the auxiliary sleeve 1, which is far away from the lifting ring 12, is fixedly connected with a bulldozer 16, and the bulldozer 16 is used for reducing the bearing area of the bottom of the auxiliary sleeve 1, so that compared with the first embodiment, the pressure for inserting the auxiliary sleeve 1 into the well 200 is further improved, and the auxiliary sleeve 1 is more convenient to insert into the well 200; the side wall of the bulldozing cone 16 is provided with a plurality of water outlet slits 17, and the water outlet slits 17 are used for guiding water and flowing soil in the water fall pipe 2 to flow out of the water fall pipe 2; in this embodiment, the auxiliary sleeve 1 also plays a role of limiting the movement of the precipitation pipe 2 relative to the bottom of the water collection well 100, and the auxiliary sleeve 1 does not need to be pulled out from the bottom of the water collection well 100, so that compared with the first embodiment, the step of filling the gap between the well 200 and the precipitation pipe 2 with concrete is omitted, and the engineering amount of the precipitation well construction is further reduced.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a precipitation well construction equipment which characterized in that: including auxiliary sleeve (1) and downcomer (2), auxiliary sleeve (1) outer wall is provided with a plurality of horizontal scale groove (11), and each horizontal scale groove (11) equidistance sets up, downcomer (2) sliding connection is in auxiliary sleeve (1)'s inner wall, auxiliary sleeve (1) perpendicular to the bottom of sump pit (100), drilling (200) are inserted to auxiliary sleeve (1)'s one end.

2. A dewatering well construction apparatus according to claim 1, wherein: one end of the auxiliary sleeve (1) far away from the bottom of the water collecting well (100) is fixedly connected with a hoisting ring (12).

3. A dewatering well construction apparatus according to claim 2, wherein: one end of the auxiliary sleeve (1) far away from the lifting ring (12) is fixedly connected with a soil retaining pipe (13), an enveloping body of the soil retaining pipe (13) is an inverted truncated cone, and the minimum caliber of the soil retaining pipe (13) is larger than the outer diameter of the water reducing pipe (2).

4. A dewatering well construction apparatus according to claim 1, wherein: the inner wall of the auxiliary sleeve (1) is provided with a drainage groove (14).

5. A dewatering well construction apparatus according to claim 2, wherein: a plurality of grab handles (15) are fixedly connected to the lifting ring (12).

6. A dewatering well construction apparatus according to claim 1, wherein: after the auxiliary sleeve (1) is pulled out from the bottom of the water collecting well (100), one end of the water falling pipe (2) away from the bottom of the water collecting well (100) is sleeved with the limit sleeve (3), and the bottom end of the limit sleeve (3) is fixedly connected to the bottom of the water collecting well (100).

7. A dewatering well construction apparatus according to claim 2, wherein: one end of the auxiliary sleeve (1) far away from the lifting ring (12) is fixedly connected with a bulldozing cone (16), and a plurality of water outlet slits (17) are formed in the side wall of the bulldozing cone (16).

8. A dewatering well construction apparatus according to claim 1, wherein: the auxiliary sleeve (1) is made of galvanized steel.