CN214460985U - Percolate pumping and draining small-caliber well structure capable of monitoring pile deformation - Google Patents
Percolate pumping and draining small-caliber well structure capable of monitoring pile deformation Download PDFInfo
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- CN214460985U CN214460985U CN202023022645.5U CN202023022645U CN214460985U CN 214460985 U CN214460985 U CN 214460985U CN 202023022645 U CN202023022645 U CN 202023022645U CN 214460985 U CN214460985 U CN 214460985U
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Abstract
The utility model provides a filtration liquid pump drainage small-bore well structure that can pile body deformation monitoring. The small-caliber vertical shaft structure consists of a percolate pumping and draining device (comprising galvanized steel pipes with no holes at the lower section, no holes at the middle section and no holes at the upper section, a hose, a double-layer nylon net, a water outlet pipe, a compressed air pipe), a prism and an optical fiber inclination measuring sensor. Two adjacent sections of galvanized steel pipes are connected through a hose, a flange is arranged at the pipe orifice of the galvanized steel pipe without the hole at the upper section, and the bottom of the prism is connected with a screw on the flange. And the optical fiber inclination measuring sensor is inserted into the square groove on the inner wall of the galvanized steel pipe after the galvanized steel pipe is laid.
Description
Technical Field
The utility model relates to a landfill leachate pump drainage small-bore shaft structure who has configured optical fiber sensor and prism in order to carry out the monitoring of pile body deformation.
Background
Due to the limitations of early process and capital, China has a large number of old landfills with incomplete anti-seepage, anti-fouling and isolation facilities. Domestic garbage in China has the characteristic of high water content, and because the landfill sites lack effective rain and sewage diversion systems and drainage guide systems are easy to be silted up and the like, higher leachate water level is formed in the pile body, so that the risk of leachate leakage pollution is increased, and the stability of the pile body is greatly reduced.
In order to ensure the safe operation of the refuse landfill and the pollution control problem, the water level of the percolate needs to be reduced and controlled. The shaft pumping drainage dewatering technology is widely applied to landfill sites with failure of the original drainage guide system. Because of the installation requirement of the submersible pump in the well, a large-caliber vertical shaft with the diameter of more than 400mm is mostly adopted at present. During operation, the fabric and plastic in the trash can block the submersible pump, and therefore frequent maintenance of the submersible pump is required, which greatly reduces pumping efficiency. Meanwhile, theoretical analysis and engineering practice results show that: when the vertical shaft is used for pumping and discharging the percolate in the landfill, the contribution of the increase of the radius of the shaft to the production flow is not obvious (for example, the diameter of the shaft is increased by one time, the flow is increased by about 10 percent, the diameter of the shaft is increased by 10 times, and the flow is only increased by about 40 percent). In summary, when a large-diameter shaft is used, construction costs are greatly increased due to a large drilling diameter and frequent maintenance, and it is difficult to exert the advantages of the large-diameter shaft even if the diameter of the shaft is increased.
Due to the rapid increase of the yield of the municipal solid waste, most landfill sites are in an overload operation state, the actual daily average landfill amount is far higher than the originally designed landfill amount, the landfill capacity and the landfill height are far higher than expected, and the landfill pressure is huge. Influenced by garbage loading, percolate water level harmony and the like, the landfill has the risk of partial and overall slippage. The instability and damage of the landfill site can cause a large amount of leakage of percolate, directly pollute the surrounding ground and underground water systems and even cause casualties. Therefore, stable safety monitoring of the landfill during operation is very important.
Disclosure of Invention
An object of the utility model is to overcome not enough among the current landfill yard heap body deformation monitoring and the pump drainage shaft technique, provide a landfill yard filtration liquid pump drainage small-bore shaft structure who has set up optic fibre deviational survey sensor and prism, the small-bore well can pump drainage landfill yard filtration liquid, still has the function of monitoring landfill yard rubbish heap body deep deformation, surface deformation simultaneously.
In order to achieve the above object, the present invention provides the following technical solutions:
a percolate pumping and draining small-caliber well structure capable of monitoring the deformation of a pile body is arranged in a landfill and is characterized by comprising a main body structure, a percolate pumping and draining device and a settlement monitoring device, wherein the main body structure is arranged in a small-caliber vertical well;
the main structure is a well pipe formed by sequentially splicing an upper-section galvanized steel pipe (7), a middle-section galvanized steel pipe (8), a lower-section galvanized steel pipe (11) and a connecting hose (12), wherein the upper-section galvanized steel pipe (7) is not provided with a hole, a through hole is formed in the whole section of cylindrical surface of the middle-section galvanized steel pipe (8), and the lower-section galvanized steel pipe (11) is not provided with a hole; a flange (6) is arranged at the pipe orifice of the upper segment galvanized steel pipe (7), and double layers of nylon nets (9) are coated outside the middle segment galvanized steel pipe (8) and the lower segment galvanized steel pipe (11);
the percolate pumping and draining device comprises a water outlet pipe (4), a compressed air pipe (1), a water outlet hose (2) and an air compressor; a water outlet pipe (4) and a compressed air pipe (1) are arranged in a galvanized steel pipe hole of the main body structure, the compressed air pipe (1) is connected out of an air compressor, passes through a flange (6) at the pipe orifice of an upper-section galvanized steel pipe (7) and penetrates through the whole water outlet pipe (4); the pipe orifice of the water outlet pipe (4) is connected with the water outlet hose (2), and the water outlet hose (2) is connected with an external water drainage pipe through the reducing tee (3);
the settlement monitoring device comprises a prism (5), a total station and an optical fiber inclination measuring sensor (14): the bottom of the prism (5) is connected with the flange (6), the total station is stabilized on the ground surface and the total station is used as measuring equipment to be aligned with the prism (5) and is used for measuring horizontal displacement and vertical settlement of the ground surface; the optical fiber inclination measuring sensor (14) is inserted into the inner wall square groove (13) of the galvanized steel pipe.
In the vertical shaft, cleaned broken stones (10) are adopted to fill the gap between the vertical shaft hole and the galvanized steel pipe, so that the permeability coefficient of the periphery of the shaft wall is improved.
The utility model provides a small-bore shaft structure mainly used percolate the too high landfill yard of water level in the rubbish heap body appear the region that the side slope slided, the diameter scope of small-bore is 100 supplyes with medicine 200 mm.
The utility model discloses in merging filtration liquid water level control in-process with the monitoring technology, in pump drainage landfill filtration liquid, the deep deformation and the surface displacement of monitoring rubbish heap body and subside, can manage the pollution risk of filtration liquid and the stable safety of the guarantee rubbish heap body better. The method can guide the landfill, can also early warn the potential safety hazard of the landfill site, and can eliminate the potential safety hazard of the garbage pile body by taking the measures of stable control and slippage treatment of the landfill site in time. The utility model discloses a popularization and application will compensate at present that internal work in the aspect of the on-the-spot monitoring about rubbish heap body unstability case is lacked relatively, lacks the accumulation of monitoring data, strides out one step earlier for the following trade forms reliable monitoring system.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) the small-caliber vertical shaft has reasonable structure, short construction period, good economy and convenient implementation of anti-clogging maintenance;
(2) the compressed air is uniformly conveyed by the compressor, so that the later operation is convenient and the operation cost is low;
(3) the utility model discloses in merging filtration liquid water level control in-process with the monitoring technology, in pump drainage landfill filtration liquid, the monitoring rubbish heap body warp, can control the pollution risk of filtration liquid better and ensure the stable safety of rubbish heap body.
Description of the drawings:
fig. 1 is a structure diagram of a small-bore shaft provided by the utility model.
Fig. 2 is a sectional view of fig. 1 through 1.
Fig. 3 is a schematic view of the galvanized steel pipe orifice flange provided by the utility model.
Description of the reference numerals
1 is a compressed air pipe;
2 is a water outlet hose;
3 is an opposite tee joint;
4 is a water outlet pipe;
5 is a prism;
6 is a flange;
7 is an upper segment galvanized steel pipe;
8 is a middle galvanized steel pipe;
9 is a double-layer nylon net;
10 washing the crushed stone;
11 is a lower segment galvanized steel pipe;
12 is a connecting hose;
13 is a square groove on the inner wall of the galvanized pipe;
and 14, a fiber optic inclinometer sensor.
Detailed Description
The technical solution of the small-bore shaft structure for drainage of leachate in a landfill site provided with the optical fiber inclinometer sensor and the prism according to the present invention will be further described with reference to the following specific embodiments and accompanying drawings. The advantages and features of the present invention will become more apparent in conjunction with the following description.
It should be noted that the embodiments of the present invention have better practicability, and are not intended to limit the present invention in any form. The technical features or the combinations of the technical features described in the embodiments of the present invention should not be considered as isolated, and they may be combined with each other to achieve a better technical effect. The scope of the preferred embodiments of the present invention may also include other implementations, and this should be understood by those skilled in the art to which the embodiments of the present invention pertain.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
The drawings of the utility model all adopt the very simplified form and all use the non-accurate proportion, only used for convenience, clearly assist the explanation the purpose of the embodiment of the utility model, not the limit condition that the utility model can be implemented. The modification of any structure, the change of the proportional relationship or the adjustment of the size should fall within the scope covered by the technical content of the present invention without affecting the effect of the present invention and the purpose achieved. And the same reference numerals appearing in the drawings of the present invention denote the same features or components, which can be applied to different embodiments.
Design one
As shown in fig. 1, fig. 2 and fig. 3, the utility model provides a landfill leachate drainage small-bore shaft structure provided with an optical fiber inclination measuring sensor and a prism, for example but not limited, the diameter of the small-bore shaft structure is 160mm as an embodiment, the small-bore shaft structure is arranged in a landfill, and comprises a main body structure, a leachate drainage device and a settlement monitoring device, wherein the main body structure is arranged in the small-bore shaft;
the main structure is a well pipe formed by sequentially splicing an upper-section galvanized steel pipe (7), a middle-section galvanized steel pipe (8), a lower-section galvanized steel pipe (11) and a connecting hose (12) so as to allow a certain displacement and a certain corner at a joint. Wherein, the upper segment galvanized steel pipe (7) is not provided with a hole, the whole section of the cylindrical surface of the middle segment galvanized steel pipe (8) is provided with a through hole, and the lower segment galvanized steel pipe (11) is not provided with a hole. The upper segment galvanized steel pipe (7) is provided with a flange (6), and the middle segment galvanized steel pipe (8) and the lower segment galvanized steel pipe (11) are coated with double-layer nylon nets (9). The well pipe is mainly made of galvanized steel pipes, so that the rigidity of the well is increased as much as possible, the well pipe is prevented from being bent and losing efficacy in a short time, and the service life of the drainage well is prolonged. Lower segment galvanized steel pipe (11) and middle section galvanized steel pipe (8) all coat with double-deck nylon wire netting (9) outward, prevent that fine particle material from adhering to the drainage shaft wall of a well, influencing the working property of drainage shaft.
The percolate pumping and draining device comprises a water outlet pipe (4), a compressed air pipe (1), a water outlet hose (2) and an air compressor; a water outlet pipe (4) and a compressed air pipe (1) are arranged in a galvanized steel pipe hole of the main body structure, the compressed air pipe (1) is connected out from an air compressor (not shown in the figure), passes through a flange (6) at the pipe orifice of the upper-section galvanized steel pipe (7) and penetrates through the whole water outlet pipe (4); the pipe orifice of the water outlet pipe (4) is connected with the water outlet hose (2), and the water outlet hose (2) is connected with an external drain pipe (not shown in the figure) through the reducing tee (3). The water-vapor mixture in the drainage well is flushed out by high-pressure gas and guided into a drainage pipe network.
The settlement monitoring device comprises a prism (5), a total station and an optical fiber inclination measuring sensor (14): the bottom of the prism (5) is connected with a screw on the flange (6), so that the prism (5) is fixed with a measured object (namely a tube well main body structure), the total station is stabilized at a certain position on the ground surface, and the total station is used as measuring equipment to be aligned with the prism (5) and used for measuring horizontal displacement and vertical settlement of the ground surface; the optical fiber inclination measuring sensor (14) is inserted into the inner wall square groove (13) of the galvanized steel pipe after the galvanized steel pipe is laid, the vertical displacement of the main monitoring structure in the small-caliber shaft can be used for monitoring the deep displacement, and the ground surface displacement and the vertical displacement are combined to monitor the sedimentation deformation inside the pile body. At present, in the prior art, the field settlement monitoring of the landfill site mainly utilizes a level gauge to carry out surface settlement but cannot monitor the settlement deformation in the pile body. In the prior art, a common method for monitoring the sedimentation deformation inside a pile body is to bury an inclinometer pipe, but the inclination of the inclinometer pipe is large in the landfill site, the deformation is large, the displacement and the blockage of the inclinometer pipe are easily caused, and the inclinometer pipe cannot be stably used for a long time.
In the vertical shaft, cleaned broken stones (10) are adopted to fill the gap between the vertical shaft hole and the galvanized steel pipe, so that the permeability coefficient of the periphery of the shaft wall is improved.
Second, the construction process
The construction process of the small-caliber vertical shaft comprises the following steps: pore-forming construction, well-forming construction, pipeline arrangement in a well and prism arrangement.
And (3) pore-forming construction: the construction adopts a rotary drilling method, the drilling machine is positioned according to the construction sequence, and the drill bit is aligned to the well point position in the vertical state. The diameter of the drill used for construction is changed according to different depths.
And (3) well completion construction: the process mainly comprises the embedding construction of the galvanized steel pipe. The upper galvanized steel pipe (7), the middle galvanized steel pipe (8) and the lower galvanized steel pipe (11) are sequentially installed from bottom to top, and every two galvanized steel pipes are spliced by a connecting hose to form a shaft. In order to effectively seep the percolate around the well wall into the well, a circular hole is formed in the wall of the middle-section galvanized steel pipe (8), and the opening rate is 3%. In order to prevent the galvanized steel pipe from being blocked by substances generated by biochemical degradation of garbage, the outer side of the steel pipe is wrapped with a double-layer nylon net (9). The bottom end of the lower galvanized steel pipe (11) is welded and sealed, so that the phenomenon that the service life of the pumping well is influenced due to the fact that garbage is blocked in a suction pipe is avoided. The cleaned broken stone (10) is adopted to fill the gap between the drill hole and the galvanized steel pipe, so that the permeability coefficient of the periphery of the well wall is improved.
Arranging pipelines in the well: after the filling construction is finished, the optical fiber inclination measuring sensor (14) is inserted into the square groove (13) on the inner wall of the galvanized steel pipe, the water outlet pipe (4) is inserted into the galvanized steel pipe, and the length of the water outlet pipe (4) is equal to that of the galvanized steel pipe. Outside ligature compressed air pipe (1) of outlet pipe (4), and in compressed air pipe (1) was around the admission pipe from the bottom of drain pipe (4), reuse screw was connected outlet pipe (4) and flange (6), and outlet pipe (4) of drainage well are connected to outside drain pipe through going out water hose (2) and opposite sex tee bend (3).
And (3) arranging prisms: the bottom of the prism (5) is connected with the screw on the flange (6).
Third, the working mode
After construction, compressed air can be connected, percolate is pumped out, the prism (5) is matched with the total station to measure the deformation of the earth surface, and the optical fiber inclination measuring sensor (14) is used for measuring the deep horizontal displacement of the garbage pile body.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention in any way. Any changes or modifications of the above-described embodiments, which may be made by those skilled in the art based on the above-described disclosure, should be considered as equivalent effective embodiments, and all fall within the scope of the protection of the present invention.
Claims (2)
1. A percolate pumping and draining small-caliber well structure capable of monitoring the deformation of a pile body is arranged in a landfill and is characterized by comprising a main body structure, a percolate pumping and draining device and a settlement monitoring device, wherein the main body structure is arranged in a small-caliber vertical well;
the main structure is a well pipe formed by sequentially splicing an upper-section galvanized steel pipe (7), a middle-section galvanized steel pipe (8), a lower-section galvanized steel pipe (11) and a connecting hose (12), wherein the upper-section galvanized steel pipe (7) is not provided with a hole, a through hole is formed in the whole section of cylindrical surface of the middle-section galvanized steel pipe (8), and the lower-section galvanized steel pipe (11) is not provided with a hole; a flange (6) is arranged at the pipe orifice of the upper segment galvanized steel pipe (7), and double layers of nylon nets (9) are coated outside the middle segment galvanized steel pipe (8) and the lower segment galvanized steel pipe (11);
the percolate pumping and draining device comprises a water outlet pipe (4), a compressed air pipe (1), a water outlet hose (2) and an air compressor; a water outlet pipe (4) and a compressed air pipe (1) are arranged in a galvanized steel pipe hole of the main body structure, the compressed air pipe (1) is connected out of an air compressor, passes through a flange (6) at the pipe orifice of an upper-section galvanized steel pipe (7) and penetrates through the whole water outlet pipe (4); the pipe orifice of the water outlet pipe (4) is connected with the water outlet hose (2), and the water outlet hose (2) is connected with an external water drainage pipe through the reducing tee (3);
the settlement monitoring device comprises a prism (5), a total station and an optical fiber inclination measuring sensor (14): the bottom of the prism (5) is connected with the flange (6), the total station is stabilized on the ground surface and the total station is used as measuring equipment to be aligned with the prism (5) and is used for measuring horizontal displacement and vertical settlement of the ground surface; the optical fiber inclination measuring sensor (14) is inserted into the inner wall square groove (13) of the galvanized steel pipe.
2. The leachate pumping and drainage small bore well structure capable of monitoring the deformation of the heap according to claim 1, characterized in that in the vertical well, the gap between the drilled vertical well hole and the galvanized steel pipe is filled with cleaned crushed stone (10) to increase the permeability coefficient of the periphery of the well wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023022645.5U CN214460985U (en) | 2020-12-15 | 2020-12-15 | Percolate pumping and draining small-caliber well structure capable of monitoring pile deformation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023022645.5U CN214460985U (en) | 2020-12-15 | 2020-12-15 | Percolate pumping and draining small-caliber well structure capable of monitoring pile deformation |
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| Publication Number | Publication Date |
|---|---|
| CN214460985U true CN214460985U (en) | 2021-10-22 |
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| CN202023022645.5U Active CN214460985U (en) | 2020-12-15 | 2020-12-15 | Percolate pumping and draining small-caliber well structure capable of monitoring pile deformation |
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