CN210086205U

CN210086205U - Groundwater monitoring well suitable for weak soil area

Info

Publication number: CN210086205U
Application number: CN201920233603.4U
Authority: CN
Inventors: 陈华艳; 林莹; 卢健; 刘越生; 刘孙谋; 林鑫; 罗才松
Original assignee: FUJIAN HUARONG CONSTRUCTION GROUP Co Ltd
Current assignee: FUJIAN HUARONG CONSTRUCTION GROUP Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2020-02-18
Anticipated expiration: 2029-02-22

Abstract

The utility model provides a groundwater monitoring well suitable for soft soil area, which comprises an inner pipe, an outer pipe and a filter layer, wherein the inner pipe is sleeved in the outer pipe and has a space at intervals, and the filter layer is fixed in the space between the inner pipe and the outer pipe; the inner tube with all bore on the wall of outer tube and get a plurality of infiltration hole, just the bottom of outer tube is sealed. The underground water monitoring well of the utility model is provided with the inner pipe, the outer pipe and the filter layer, on one hand, the strength and rigidity of the outer pipe and the inner pipe can be fully utilized, and the outer force is directly pressed into the soft soil, thereby avoiding adopting a drilling machine to drill holes in advance, saving time and labor; on the other hand, the effect of the geotextile on separation and filtration is fully utilized, so that the geotextile is not influenced by the surrounding sandy soil, and the monitoring is more accurate.

Description

Groundwater monitoring well suitable for weak soil area

[ technical field ] A method for producing a semiconductor device

The utility model relates to a monitoring well specifically indicates a novel monitoring well that is applicable to soft soil area monitoring ground water level, quality of water.

[ background of the invention ]

During the monitoring of the change process of the groundwater level, the water temperature and the water quality, the monitoring is completed through a monitoring well, the construction method of the monitoring well is similar to that of a conventional well, a monitoring instrument is placed in the well after completion of the well, and a water sample is collected at regular time and is transported back to a laboratory or is directly tested and analyzed in the monitoring well. At present, most monitoring wells are drilled in soil, PVC pipelines with holes are placed, and sandy soil is used for backfilling and compacting between the drilled holes and the PVC pipelines. However, there are several problems with this approach: firstly, in a soft soil area, due to the lower soil strength, the pore-forming is difficult; secondly, the sandy soil is heavy and needs to be transported by vehicles, and the sandy soil can be transported for a long distance in a region lacking in sandy soil; thirdly, the sand needs to be cleaned by purified water in advance, and the cleaning work is time-consuming and labor-consuming; fourthly, some fine sand particles can enter the pipeline through the holes on the PVC pipeline, so that monitoring is influenced. In view of this, the utility model discloses to the above-mentioned defect deep research of present monitoring well, tunnel to have the present case to produce.

[ Utility model ] content

The to-be-solved technical problem of the utility model lies in providing a groundwater monitoring well suitable for weak soil area, need not special pore-forming, also need not to backfill sand, and the monitoring result is more accurate.

The utility model discloses a realize like this: the underground water monitoring well suitable for the soft soil area comprises an inner pipe, an outer pipe and a filter layer, wherein the inner pipe is sleeved in the outer pipe and is spaced by a space, and the filter layer is fixed in the space between the inner pipe and the outer pipe; the inner tube with all bore on the wall of outer tube and get a plurality of infiltration hole, just the bottom of outer tube is sealed.

Furthermore, the filter screen layer is a geotextile layer, so that the material is convenient to obtain, the price is low, the fixation is convenient, the pore size is proper, and the filtering effect is good.

Further, be provided with a plurality of annular grooves on the outer wall of inner tube at interval, geotechnological cloth layer parcel is in on the outer wall of inner tube to it is fixed with the rope ligature, the position of rope ligature just is located the annular groove department of inner tube to guarantee that the rope ligature is stable, and the outer wall of inner tube is still comparatively level and smooth after the rope ligature.

Furthermore, the rope is a nylon rope, and the service life of the rope can be fully guaranteed in a humid environment.

Furthermore, the bottom outer wall of outer tube is the toper structure, can labour saving and time saving when adopting external force directly to impress in the soft soil.

Furthermore, the inner pipe and the outer pipe are fixed through screws, so that the inner pipe and the outer pipe can be fixed relatively.

The utility model has the advantages that: the underground water monitoring well of the utility model is provided with the inner pipe, the outer pipe and the filter layer, on one hand, the strength and rigidity of the outer pipe and the inner pipe can be fully utilized, and the outer force is directly pressed into the soft soil, thereby avoiding adopting a drilling machine to drill holes in advance, saving time and labor; on the other hand, the water level, the water temperature or the water quality condition is directly measured or actually measured from the inside of the pipeline by fully utilizing the filtering function of the geotextile, so that the influence of the surrounding sandy soil is avoided, and the monitoring is more accurate; in addition, the monitoring well is simple in structure and rapid in construction, and provides a new way for underground water monitoring.

[ description of the drawings ]

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is an axial sectional schematic view of the utility model groundwater monitoring well.

[ detailed description ] embodiments

Referring to fig. 1, the groundwater monitoring well suitable for soft soil areas of the present invention includes an inner pipe 1, an outer pipe 2 and a filter layer 3, wherein the inner pipe 1 is sleeved in the outer pipe 2 and has a space therebetween, and the filter layer 3 is fixed in the space between the inner pipe 1 and the outer pipe 2; a plurality of weep holes 12(22) are drilled on the walls of the inner pipe 1 and the outer pipe 2, and the bottom of the outer pipe 2 is sealed.

In a preferred embodiment, the filtering layer 3 is a geotextile layer, which is convenient to obtain materials, low in cost, convenient to fix, appropriate in pore size and good in filtering effect. However, the utility model is not limited to this, as long as can keep apart the material of sand and ability infiltration all can.

For the fixing of geotechnique's cloth layer, can be provided with a plurality of annular grooves 14 on the outer wall of inner tube 1 at interval, geotechnique's cloth layer parcel is in on the outer wall of inner tube 1 to it is fixed with rope 4 ligature, the position of rope 4 ligature just is located the annular groove 14 department of inner tube to guarantee that rope 4 ligature is stable, and the outer wall of inner tube is still comparatively level and smooth after rope 4 ligature, with the resistance when reducing the cover and establishing in outer tube 1. Wherein, the rope 4 is preferably a nylon rope, and the service life can be fully ensured under the humid environment.

In a preferred embodiment, the outer wall of the bottom of the outer pipe 2 is a conical structure 24, and when external force is applied, the external force can be concentrated at the vertex of the conical structure 24, so that the outer pipe can be directly pressed into soft soil, and time and labor can be saved.

The inner tube 1 and the outer tube 2 are fixed by screws 5 to ensure that the inner tube 1 and the outer tube 2 can be fixed relatively, and the fixing mode is simple.

The utility model discloses when specifically realizing, can wrap up geotechnological cloth earlier on the outer wall of inner tube 1 to it is fixed with 4 ligatures of rope, will have geotechnological cloth and rope 4's inner tube 1 again and put into outer tube 2 in, then fix outer tube 2, inner tube 1 and geotechnological cloth together with screw 5. During specific construction, the monitoring well is directly and vertically pressed into soft soil by external force, such as a forklift. The hole is not required to be drilled in advance, and sand and soil are not required to be transported for backfilling.

The utility model discloses have following obvious benefit after implementing:

(1) the strength and rigidity of the outer pipe and the inner pipe are utilized, external force is directly pressed into soft soil, the drilling of a drilling machine in advance is avoided, and time and labor are saved;

(2) the filter effect of the geotextile is fully utilized, so that the underground water is percolated into the pipeline, the soil body is filtered outside the pipeline, and then water is taken from the pipeline or the conditions of water level, water temperature or water quality are directly measured;

(3) in addition, the monitoring well is simple in structure and rapid in construction, and provides a new way for underground water monitoring.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a groundwater monitoring well suitable for soft soil area which characterized in that: the filter comprises an inner pipe, an outer pipe and a filter layer, wherein the inner pipe is sleeved in the outer pipe and is spaced with a space, and the filter layer is fixed in the space between the inner pipe and the outer pipe; the inner tube with all bore on the wall of outer tube and get a plurality of infiltration hole, just the bottom of outer tube is sealed.

2. The groundwater monitoring well suitable for soft soil areas as claimed in claim 1, wherein: the filter layer is a geotextile layer.

3. The groundwater monitoring well suitable for soft soil areas as claimed in claim 2, wherein: the outer wall of the inner pipe is provided with a plurality of annular grooves at intervals, the geotechnical cloth layer is wrapped on the outer wall of the inner pipe and is bound and fixed by ropes, and the binding positions of the ropes are just positioned at the annular grooves of the inner pipe.

4. The groundwater monitoring well suitable for soft soil areas as claimed in claim 3, wherein: the rope is a nylon rope.

5. The groundwater monitoring well suitable for soft soil areas as claimed in claim 1, wherein: the outer wall of the bottom of the outer pipe is of a conical structure.

6. The groundwater monitoring well suitable for soft soil areas as claimed in claim 1, wherein: the inner tube and the outer tube are fixed through screws.