KR101961766B1 - Apparatus for measuring Underground inclination and water level - Google Patents

Abstract

The present invention relates to an apparatus to measure an underground inclination and water level, capable of measuring the underground inclination and water level in one bored hole without boring each bored hole for measuring the underground inclination and the underground water level. According to the present invention, the apparatus to measure underground inclination and water level comprises a plurality of measurement pipes receiving an inclination or water level sensor therein to measure the underground inclination or water level, and a filter pipe assembled at the bottom of the measurement pipe to prevent soil from flowing in the measurement pipe and smoothly receive groundwater. The filter pipe comprises: an inner pipe connected to the measurement pipe and having a plurality of protruding strips longitudinally formed on an outer circumferential surface; an outer pipe to cover the outside of the inner pipe; and a plurality of filter modules inserted into a strip groove of the protruding strips adjacent to each other between the inner and outer pipes to be able to be ridden. Accordingly, provided are effects of facilitating assembly of the filter pipe installed to the measurement pipe and measurement of the apparatus, smoothly supplying water into the measurement pipe, and facilitating manufacturing of the measurement apparatus and exchange of a suitable filter due to modularization of a filter of the filter pipe.

Description

[0001] Apparatus for measuring underground inclination and water level [0002]

The present invention relates to an apparatus for measuring ground slope and groundwater level, and more particularly, to an apparatus for measuring ground slope and groundwater level in a perforation hole without having to form respective perforation holes for measuring ground slope and groundwater level To an underground slope and groundwater level measuring device.

In general, an underground slope gauge measures the position, direction, size and velocity of horizontal or vertical displacement of soil particles due to other effects such as excavation and embankment cavitation and groundwater displacement, This type of underground inclinometer is used as a measure for determining the degree of safety of a structure and a tentative structure. In the case where a foundation work such as an apartment or a high-rise building is carried out, A perforated and inclined gauge is buried at a predetermined distance (for example, 30 m intervals) at a depth of 50 m / 100 m. A sensor-type probe connected with the cable along the inclined gauge is inserted into the ground It is necessary to measure whether or not the slope tube that is settled by the settlement is deformed.

In addition, the groundwater hierarchy measures changes in the groundwater level in order to perform the above foundation work, and examines the factors that increase the load by comparing with the water level applied to the design. The groundwater level is measured at a predetermined interval (for example, at intervals of 30 m) around the construction site of the building to measure the groundwater level. A water level meter having a hole at a depth of 50 m / 100 m is buried and a water level meter having a hole at the bottom is buried. Then, a tape measure type probe is inserted through the embedded water level meter and then the water level of the probe is measured.

However, since the underground slope and the groundwater level are used to measure the ground slope and the groundwater level as described above, there has been a complication in the construction of the ground hole and the measurement pipe according to the installation, , The drilling of the ground, and the installation of the measuring pipe have been excessively required. In addition, there has been a serious problem that the air is delayed due to the construction of the building as well as the measuring period according to the troublesome construction process.

In order to solve such a problem, there is provided a measuring pipe having a double pipe-type pipe having a filter in the base pipe, so that it is not necessary to form the respective perforation holes for measuring the ground inclination and the groundwater level, Korean Patent No. 1177459 and Korean Patent No. 1833026 disclose measurement devices capable of simultaneously measuring the groundwater level.

Korean Registered Patent No. 1177459 (registered on Aug. 21, 2012)

Korean Registered Patent No. 1833026 (Registered on Feb. 21, 2018)

The object of the present invention is to provide a method and a device for assembling a filter tube provided in a measuring pipe for measuring a ground slope and a groundwater level together, facilitating measurement of the device, preventing clogging of the device, And to provide the above measuring device.

In order to achieve the above object, an apparatus for measuring ground slope and groundwater level according to the present invention includes a plurality of measurement pipes for receiving an inclination sensor or a water level sensor therein and measuring underground slope or underground water level, The filter tube includes an inner tube connected to the measuring tube and having a plurality of protruding strips formed on the outer surface of the circumference in the longitudinal direction, And a plurality of filter modules slidably inserted into a groove of a protruding band adjacent between the inner tube and the outer tube.

The filter module includes a pair of upright band plates slidably inserted into the band groove and formed on both sides thereof, an arc band plate of an elastic material connecting the pair of upright band plates by a circular arc, and a plate-shaped filter member connecting the arc band plate to the upright band plate .

The plate-shaped filter member includes an inner filter member covering the inside of the arc strip and an outer filter member covering the outer side of the arc strip, and the inner filter member and the outer filter member are members having different filter capacities.

On the inner surface of the inner tube, a fine filtration filter tube having a finer filtration capacity than the filter module can be inserted.

The apparatus for measuring ground slope and groundwater level according to the present invention has the effect of facilitating the assembling of the filter tube provided in the measuring pipe and the measurement of the device, preventing the clogging of the pipe, and facilitating the inflow of water into the measuring pipe.

Further, by modulating the filter of the filter tube, there is an effect that fabrication of the measuring device and easy replacement of the filter are facilitated.

1 is a perspective view of a main body of an underground slope and groundwater level measuring apparatus according to an embodiment of the present invention.
2 is an exploded perspective view of the body of FIG.
Figure 3 is a cross-sectional view of the filter tubular portion in Figure 1;
Fig. 4 is a perspective view of the filter tube of Fig. 3; Fig.
5 is a cross-sectional view taken along the line AA in Fig.
Fig. 6 is a perspective view of the filter module of Figs. 4 and 5. Fig.
FIG. 7 is an explanatory view of a modification for inserting the filter module of FIG. 6 into the groove.
8 is a cross-sectional view taken along line BB in Fig.
9 is a cross-sectional view showing an end portion of a main body of an underground slope and groundwater level measuring apparatus according to another embodiment of the present invention.
10 is a view showing a state in which the main body of the underground slope and groundwater level measuring apparatus according to the embodiment of the present invention is installed in the perforation hole to measure the ground slope.
11 is a view showing a state in which a probe is guided and inserted into the inside of an underground slope and groundwater level measuring apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

FIG. 1 is a perspective view of a main body of an underground slope and groundwater level measuring apparatus according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the main body of FIG.

An apparatus for measuring ground slope and groundwater level according to an embodiment of the present invention is an apparatus for measuring ground slope and groundwater level together. The apparatus includes a main body installed in a perforation hole, and a probe probe) to measure ground slope and groundwater level. 1 and 2, the main body 10 includes a plurality of measurement tubes 110, a first connector 120, a filter tube 130, a second connector 140, an upper finishing cap 150, And a lower finishing cap (160).

The measuring pipe 110 has a structure in which three measuring pipes 111, 112 and 113 are connected by two first connecting ports 120 in the present embodiment, and is formed as a circular pipe having an inner perforated pipe. The uppermost measuring pipe 111 is a pipe which is removed for backing up to a certain depth from the ground when the main body is closed. A plurality of guide grooves 110a are formed on the inner circumferential surface of the measuring pipe 110 in the height direction and a plurality of mounting protrusions 110b are formed on the outer circumferential surface of the measuring pipe 110 in the height direction. The measuring pipe 110 is made of a synthetic resin material, and is preferably made of ABS (Arcylonitrile Butadiene Styrene) so as to prevent the tube from being bent by earth pressure and to prevent corrosion in the ground.

The guide groove 110a is a groove for guiding the probe P when inserting a probe P for measuring an underground gradient or groundwater level into the measurement tube 110 (see FIG. 11). The guide grooves 110a are formed in the circumferential inner surface of the measurement tube 110 to a depth at which the probe is inserted, Further, the guide groove 110a is fitted with a spring roller R when a probe is inserted together with a cable equipped with a tilt sensor capable of measuring a tilt in one direction or two directions, (Refer to Fig. 11). Although four guide grooves 110a are formed in this embodiment, four or more guide grooves 110a may be formed. When four or more guide grooves 110a are formed, it is possible to measure the inclination of the ground with respect to more directions than the four directions, and to more finely measure the earth pressure and the displacement of the ground. Based on this, .

The mounting protrusion 110b is formed on the inner circumferential surface of the measuring tube 110 at a position corresponding to the guide groove 110a, but may be formed at another position.

The first connection port 120 is a joint member for connecting the adjacent measurement pipe 110. The engagement protrusion 121 protrudes in the middle of the first connection port 120 and the mounting projection 110b is inserted The fitting groove 122 is formed. A guide groove 121a for guiding the spring roller R of the probe P is formed in the engagement protrusion 121 of the first connection port 120. [ The first connection port 120 is similar to the second connection port 140 described later. The first connection port is preferably made of a synthetic resin material such as an ABS material.

FIG. 3 is a cross-sectional view of the filter tube portion in FIG. 1, FIG. 4 is a perspective view of the filter tube of FIG. 3, FIG.

3 to 6, the filter tube 130 is assembled to the lower end of the measuring pipe 110 by the second connecting pipe 140 to prevent the inflow of the groundwater into the measuring pipe 110, And includes an inner tube 131, an outer tube 132, and a filter module 133.

The inner pipe 131 is connected to the lowermost measuring pipe 113 by the second connecting port 120 and a plurality of protruding bands 131a are formed on the outer circumference of the circumference in the longitudinal direction. Four protruding strips 131a are formed at intervals of 90 degrees. Strip grooves 131b are formed on both sides of the protruding strips 131a along the longitudinal direction. The upright strip plate of the filter module 133 is inserted into the groove 131b. A plurality of inner water holes 131c through which the water flows into the filter module 133 through the outer pipe 132 are formed in the middle portion of the inner pipe 131. A guide groove 131d for guiding the spring roller R of the probe P is formed on the inner surface of the inner tube 131 at the position of the protrusion 131a. The inner tube 131 is preferably made of a synthetic resin material such as an ABS material.

The outer pipe 132 surrounds the outer surface of the inner pipe 131 and protects the filter module 133. The outer pipe 132 has a plurality of outer water holes 132c communicating with the inner water holes 131c, (132a). The inner tube 132 is preferably made of synthetic resin such as ABS.

The filter module 133 is slidably inserted into the groove 131b of the protruding band 131a adjacent to the inner pipe 131 and the outer pipe 132 and is slidably inserted into the groove 131b. A pair of upright strips 133a and 133b standing on both sides and an arc strip 133c of an elastic material connecting the pair of strips 133a and 133b by an arc and a pair of upright strips 133a and 133b covering the arc strip 133c, 133b, respectively. The filter module 133 is deformed by the arc band plate 133c of the elastic material when the upright band plates 133a and 133b on both sides are pressed as shown in Figure 7 so that the filter module 133 is directly bent between the protrusion bands 131a 131b.

The plate-shaped filter member includes an inner filter member 133d that covers the inside of the arc strip and an outer filter member 133e that covers the outer side of the arc strip 133c. The inner filter member 133d and the outer filter member 133e Are different from each other in the filter capability. That is, the inner filter member 133d may be a nonwoven fabric that is a filter sheet, and the outer filter member 133e may be a filtering sponge. It is preferable that the inner filter member 133d is made of a mesh capable of dicing a finer material than the outer filter member 133e.

The filter module 133 modulates the filter of the filter tube 130 to facilitate fabrication of the measurement device and suitable filter replacement. The upright strips 133a and 133b may be adhered or attached to the outer surface of the inner tube 131 without being caught in the grooves 131b.

8 is a cross-sectional view taken along the line B-B in Fig.

As shown in FIG. 8, the second connection port 140 is a joint member for connecting the measuring pipe 113 at the lower end to the filter pipe body 130, and the measuring pipe 113 and the filter pipe body An annular stopping hook 141 is formed to protrude from both sides of the inner tube 131. A guide groove 141a for guiding a spring roller of a probe inserted when measuring an underground gradient or a groundwater level is formed on the inner surface of the stopping jaw 141. The second connection hole 140 is made of a synthetic resin material such as an ABS material .

The upper finishing cap 150 is a member for preventing foreign matter such as soil from flowing into the measuring pipe, and is a member that is mounted on the upper end of the connected measuring pipe 110 and closes the opened upper surface. The inner peripheral surface of the upper finishing cap 150 is formed with a stripe to be coupled to the mounting protrusion 110b of the uppermost measuring pipe 110. [

The lower finishing cap 160 is disposed at the lower end of the filter tube 130 and has a cylindrical shape and a lower end clogged member in the same shape as the upper finishing cap 150. The inner peripheral surface of the lower finishing cap 160 is formed with a groove to be coupled to a protruding band of the inner tube of the filter tube 130.

9, on the inner surface of the inner tube 131 of the filter tube 130, a fine filtration filter tube 134 having a finer filtration capability than the filter module 133 is inserted to increase the filter efficiency And the lower finishing cap may be an inverted conical lower finishing cap 160 '. The lower end cap 160 'having an inverted conical shape is formed with a slime at a lower portion of the perforation hole. This slime is easily pinched and firmly embedded in the lower end cap 160' There is an effect that it is not generated.

The underground slope and groundwater level measuring apparatus according to the present invention constructed as described above is installed as shown in FIG. 10 to measure underground slope and groundwater level.

As shown in the drawing, a perforation hole H is formed in the ground, a perforated casing 20 is installed in the perforation hole H, and then the main body 10 of the measuring device is inserted into the perforated casing 20 do. Between the perforated casing (20) and the main body (10), sand or bentonite which helps to infiltrate groundwater or mitigate impact is filled. In this case, the perforated casing 20 is lifted up to a certain height while filling the sand, and at the end, the perforated casing 20 is completely removed and grout is performed between the perforated hole H and the main body 10 with a cement mortar Not shown).

Then, a probe P for measuring the ground slope or the groundwater level is inserted into the measuring pipe 110 of the main body using the cable drum D to set the initial value. When the initial value is set, Ground slope and groundwater level can be measured repeatedly.

On the other hand, when basic construction and construction work of a building requiring measurement of underground slope and groundwater level is completed, sand and the like should be filled in the installed body 10. In this case, the uppermost measuring pipe 111 of the measuring pipe 110 is removed and filled with mortar on the sand.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate the understanding of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

10: main body 20: perforated casing
110: measuring pipe 120: first connecting port
130: Filter tube 131: Inner tube
132: outer tube 133: filter module
134: Microfiltration filter tube 140: Second connector
141:
150: upper finishing cap 160: lower finishing cap
D: Cable drum H: Perforation hole
P: Probe R: Spring roller

Claims (5)

A plurality of measurement tubes for receiving an inclination sensor and a water level sensor therein for measuring an underground water level or an underground water level, a filter installed at the lower end of the measurement pipe to prevent the inflow of the water into the measurement pipe, Comprising a tubular body,
The filter tube
An inner tube connected to the measuring tube and having a plurality of protruding bands formed on an outer surface of the circumferential surface in the longitudinal direction,
An outer tube enclosing the outside of the inner tube,
And a plurality of filter modules slidably inserted into a groove of the protruding band adjacent between the inner tube and the outer tube,
Wherein a microfiltration filter tube having a finer filtration capability than the filter module is inserted into the inner surface of the inner tube. The method according to claim 1,
The filter module
A pair of upright strips slidably inserted into the groove,
An arc strip of an elastic material for connecting the pair of upright strips with an arc,
And a plate-shaped filter member covering the arc strip and connecting the upright strip. 3. The method of claim 2,
The plate-shaped filter member
An inner filter member covering the inside of the arc strip;
And an outer filter member covering an outer side of the arc strip. delete The method of claim 3,
Wherein the inner filter member and the outer filter member are members having different filter capacities.

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