CN214173813U

CN214173813U - Sealed type impervious wall seepage-proofing inspection device

Info

Publication number: CN214173813U
Application number: CN202120046657.7U
Authority: CN
Inventors: 郑铭雁; 林海宏; 郑少琼; 陈玉涵; 陈灏
Original assignee: Shenzhen Wanmeng Jian Ke Group Co ltd
Current assignee: Shenzhen Wanmeng Jian Ke Group Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-09-10
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a closed cut-off wall seepage prevention inspection device, which comprises a base, the bottom both sides of base all have the push wheel through the hub connection, the four corners department of base all is equipped with the jacking structure, be connected with the push rod between the one end outer wall both sides of base, and the integrative welding of the other end outer wall of base has the support, the inner wall of support is pegged graft perpendicularly has the rack post, and the outer wall sliding connection of rack post has the crane, the tip outer wall fixedly connected with drilling motor of crane. The utility model discloses integrated radar monitoring structure can accomplish drilling detection and radar monitoring and both combine, can detect the prevention of seepage nature, continuity and the intensity of cut-off wall, makes three kinds of detection operations of the same equipment instrument completion of detection of cut-off wall, and is more convenient, improves cut-off wall detection efficiency.

Description

Sealed type impervious wall seepage-proofing inspection device

Technical Field

The utility model relates to a cut-off wall check-out set technical field especially relates to a closed cut-off wall seepage prevention inspection device.

Background

The impervious wall is a continuous earth wall which is built in a loose and permeable layer or an earth-rock dam (weir) and plays a role in seepage prevention. The impervious wall is formed by drilling round holes or directly digging slotted holes by using a special machine tool, pouring concrete, backfilling clay or other impervious materials and the like in the holes or installing precast concrete components.

The anti-seepage treatment technology of the dam body mostly adopts the anti-seepage wall, the construction quality of the anti-seepage wall is not easy to control, the quality defects such as fracture, discontinuity, joint bifurcation, looseness, holes and the like are easy to occur, the anti-seepage wall has the characteristics of concealment and the like, and the quality detection of the uniform continuity, the wall strength, the permeability coefficient and the like of the anti-seepage wall is very important and has certain technical difficulty.

The existing inspection is monitored by excavation inspection, radar monitoring, a surrounding well method, a drilling method, an ultrasonic method and other methods, but a plurality of inspection tools are matched, and the equipment is large and inconvenient to use and detect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a closed type impervious wall seepage-proofing inspection device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a closed cut-off wall seepage prevention inspection device, includes the base, the bottom both sides of base all have the pushing wheel through the hub connection, the four corners department of base all is equipped with jacking structure, be connected with the push rod between the one end outer wall both sides of base, and the integrative welding of the other end outer wall of base has the support, the inner wall of support is pegged graft perpendicularly has the rack post, and the outer wall sliding connection of rack post has the crane, the tip outer wall fixedly connected with drilling motor of crane, and the output shaft chain of drilling motor has the sampling bore section of thick bamboo, the top outer wall of base is close to the one end fixedly connected with geological radar of push rod, and the top outer wall fixedly connected with display screen of push rod, pass through electric connection between geological radar and the display screen.

As a further scheme of the utility model, the jacking structure includes hydraulic cylinder, damping spring and bearing plate, hydraulic cylinder's piston rod one end and the outer wall middle part of bearing plate are connected, damping spring's inner wall cup joints on hydraulic cylinder's piston rod one end outer wall, and is connected between damping spring's outer wall and the outer wall of bearing plate.

As a further scheme of the utility model, one side outer wall fixedly connected with elevator motor of crane, and elevator motor's output shaft has the drive ratchet, the outer wall transmission meshing of drive ratchet is connected on the outer wall of rack post.

As a further scheme of the utility model, the sampling bores a section of thick bamboo and includes shaft coupling, barrel and trompil tooth, and the one end of barrel passes through screw thread fixed connection on the outer wall of shaft coupling, trompil tooth equidistance annular distributes on the other end outer edge of barrel.

As a further proposal of the utility model, the exhaust hole is arranged at one side of the junction of the shaft coupling and the cylinder body.

As a further proposal, the middle part of the outer wall of the bottom end of the lifting frame is connected with a locking buckle through a shaft, and the end joint of the locking buckle is arranged on the outer wall of the driving ratchet wheel.

As a further scheme of the utility model, drilling motor, elevator motor, hydraulic cylinder and geological radar all are connected with the switch, and the switch is connected with microprocessor through the wire.

The utility model has the advantages that:

1. the inspection device can be used in methods such as radar monitoring, a surrounding well method and a drilling method, drilling sampling is mainly adopted, a sampler is also needed for auxiliary sampling in the existing geological machine sampling, and the sampling drill cylinder can be used for carrying out threaded disassembly and assembly on the end part of the drill cylinder, so that the whole sampling can be conveniently taken out, and the method is more effective and accurate;

2. the inspection device further integrates a radar monitoring structure, can complete combination of drilling detection and radar monitoring, can detect the seepage resistance, continuity and strength of the impervious wall, enables the same equipment and instrument for detecting the impervious wall to complete three kinds of detection operations, is more convenient and faster, and improves the detection efficiency of the impervious wall.

Drawings

Fig. 1 is a schematic perspective view of a closed type impervious wall seepage-proofing inspection device provided by the utility model;

FIG. 2 is a schematic view of a side view cross-section of a sampling drill cylinder of the closed type impervious wall seepage-proofing inspection device of the present invention;

fig. 3 is a schematic view of the lifting structure of the anti-seepage inspection device for the closed type anti-seepage wall.

In the figure: 1. a base; 2. a lifting hydraulic cylinder; 3. a geological radar; 4. a push rod; 5. a display screen; 6. a lifting motor; 7. a rack post; 8. a drilling motor; 9. a lifting frame; 10. sampling a drill cylinder; 11. a push wheel; 12. a support plate; 13. an exhaust hole; 14. a coupling; 15. opening hole teeth; 16. driving the ratchet wheel; 17. and (4) locking the buckle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a closed type impervious wall impervious inspection device comprises a base 1, two sides of the bottom end of the base 1 are respectively connected with a push wheel 11 through a shaft, four corners of the base 1 are respectively provided with a jacking structure, a push rod 4 is connected between two sides of the outer wall of one end of the base 1, a support is integrally welded on the outer wall of the other end of the base 1, a rack column 7 is vertically inserted into the inner wall of the support, the outer wall of the rack column 7 is connected with a lifting frame 9 in a sliding manner, the outer wall of the end part of the lifting frame 9 is fixedly connected with a drilling motor 8, an output shaft of the drilling motor 8 is connected with a sampling drill barrel 10, one end of the outer wall of the top part of the base 1, which is close to the push rod 4, is fixedly connected with a geological radar 3, a display screen 5 is fixedly connected with the outer wall of the top end of the push rod 4, the geological radar 3 is electrically connected with the display screen 5, the jacking structure comprises a lifting hydraulic cylinder 2, a damping spring and a bearing plate 12, one end of a piston rod of the lifting hydraulic cylinder 2 is connected with the middle part of the outer wall of the supporting plate 12, the inner wall of a damping spring is sleeved on the outer wall of one end of the piston rod of the lifting hydraulic cylinder 2, the outer wall of the damping spring is connected with the outer wall of the supporting plate 12, the outer wall of one side of the lifting frame 9 is fixedly connected with a lifting motor 6, an output shaft of the lifting motor 6 is connected with a driving ratchet wheel 16, the outer wall of the driving ratchet wheel 16 is connected with the outer wall of the rack column 7 in a transmission and meshing manner, a sampling drill barrel 10 comprises a coupler 14, a barrel body and opening teeth 15, one end of the barrel body is fixedly connected with the outer wall of the coupler 14 through threads, the opening teeth 15 are annularly distributed on the outer wall of the other end of the barrel body at equal intervals, one side of the joint of the coupler 14 and the barrel body is provided with an exhaust hole 13, the middle part of the outer wall of the bottom end of the lifting frame 9 is connected with a locking buckle 17 through a shaft, and the end part of the locking buckle 17 is clamped on the outer wall of the driving ratchet wheel 16, drilling motor 8, elevator motor 6, hydraulic cylinder 2 and geological radar 3 all are connected with the switch, and the switch is connected with microprocessor through the wire.

The working principle of the closed type impervious wall seepage-proofing inspection device is as follows:

the integral performance of the impervious wall is detected in the following three aspects.

Permeability detection of diaphragm wall

A. Each unit project of the impervious wall can be provided with 1 inspection hole.

B. The hole positions of the inspection holes are preferably arranged at the lap joint of two adjacent high-spraying coagulants on the central line of the wall body, and the holes are preferably drilled in sections from top to bottom, cored and subjected to static water pressure water test.

C. The drilling inspection is preferably performed after the high spray slurry ends 28 d.

D. The construction sequence is as follows: the sampling drill cylinder 10 in the device is used for drilling a detection position, the diameter 2R of a drilled hole is 110mm, the drilling depth is preferably 2-4m higher than a designed water head, a slurry retaining wall is forbidden to be used during drilling, and the sampling drill cylinder 10 is opened after drilling to detect the dry volume weight of a core sample; after drilling to a preset depth, cleaning and washing holes by using a drilling machine; after the hole is washed, a sleeve is put into the hole and the pipe orifice is led out of the ground by about 0.5m, the sleeve is sealed by an expansion water stop strip between the inner part of the hole and the hole wall, the lower part of the sleeve to the hole bottom can be regarded as a water seepage test section L, the water column in the pipe can be regarded as a water head height S, before the test is started, water is filled into the hole to the pipe orifice, a water filling container is controlled to continuously fill water into the pipe, the water level in the test tube is always flush with the pipe orifice, water is filled and recorded step by step after the water level in the pipe is stable, the water filling time and the water filling quantity Q are generally and continuously filled for 3 hours, and each time period is 30 minutes.

The permeability coefficient of the impervious wall is calculated by the following formula:

k＝(0.366Q/L/S)*2L/t

wherein k is the permeability coefficient in cm³S; l is the length of the test segment in m; q is the average value of the stable water injection quantity and is in cm³(ii) a S is the height of a water head in the pipe, and the unit is m; r is the borehole radius in mm.

Continuity detection of impervious wall

And (3) after the construction is finished for 28d, detecting the continuity of the impervious wall body in the direction and the vertical depth by adopting the nondestructive technology of the geological radar 3.

Third, strength detection of seepage-proof wall stone-binding body

After the construction is finished for 28d, the strength of the stone-bonded body of the impervious wall body is required to be tested, the drilling motor 8 is utilized to drive the sampling drill cylinder 10 to arrange the inspection holes at the cross contact positions of the impervious wall between the inspection sections, and samples are taken from the upper part, the middle part and the lower part of the inspection holes to carry out the unconfined compressive strength test.

The sampling process comprises the steps of supporting a supporting plate 12 by using lifting hydraulic cylinders 2 on four sides, jacking an integral base 1, driving a driving ratchet wheel 16 to rotate by using a lifting motor 6, meshing the driving ratchet wheel with the outer wall of a rack post 7 to drive an integral lifting frame 9 to upgrade, driving a sampling drill cylinder 10 to rotate by using a drilling motor 8, rotating a cutting sampling area by using a bottom hole-opening tooth 15, reversely rotating after sampling, taking out the sampling drill cylinder 10, and integrally taking out a sampling layer body by using separation between the cylinder body and a coupler 14.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "first", "second", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The closed type impervious wall impervious inspection device comprises a base (1) and is characterized in that two sides of the bottom end of the base (1) are respectively connected with a push wheel (11) through a shaft, four corners of the base (1) are respectively provided with a jacking structure, a push rod (4) is connected between two sides of the outer wall of one end of the base (1), a support is integrally welded on the outer wall of the other end of the base (1), a rack column (7) is vertically inserted into the inner wall of the support, the outer wall of the rack column (7) is connected with a lifting frame (9) in a sliding manner, the outer wall of the end part of the lifting frame (9) is fixedly connected with a drilling motor (8), an output shaft of the drilling motor (8) is connected with a sampling drill barrel (10) in a linked manner, one end, close to the push rod (4), of the outer wall of the top part of the base (1) is fixedly connected with a geological radar (3), and the outer wall of the top end of the push rod (4) is fixedly connected with a display screen (5), the geological radar (3) is electrically connected with the display screen (5).

2. The impervious inspection device of the closed impervious wall of claim 1, characterized in that the jacking structure comprises a lifting hydraulic cylinder (2), a damping spring and a supporting plate (12), one end of a piston rod of the lifting hydraulic cylinder (2) is connected with the middle part of the outer wall of the supporting plate (12), the inner wall of the damping spring is sleeved on the outer wall of one end of the piston rod of the lifting hydraulic cylinder (2), and the outer wall of the damping spring is connected with the outer wall of the supporting plate (12).

3. The seepage-proofing inspection device for the closed type impervious wall according to claim 1, wherein the outer wall of one side of the lifting frame (9) is fixedly connected with a lifting motor (6), the output shaft of the lifting motor (6) is connected with a driving ratchet wheel (16), and the outer wall of the driving ratchet wheel (16) is in transmission engagement connection with the outer wall of the rack column (7).

4. The impervious inspection device of the closed impervious wall of claim 1, characterized in that the sampling drill cylinder (10) comprises a coupler (14), a cylinder body and open-hole teeth (15), one end of the cylinder body is fixedly connected to the outer wall of the coupler (14) through threads, and the open-hole teeth (15) are annularly distributed on the outer edge of the other end of the cylinder body at equal intervals.

5. The impervious inspection device of the closed impervious wall as claimed in claim 4, wherein a vent hole (13) is formed at one side of the joint of the coupling (14) and the barrel.

6. The seepage-proofing inspection device for the closed seepage-proofing wall according to claim 1, wherein the middle part of the outer wall of the bottom end of the lifting frame (9) is connected with a locking buckle (17) through a shaft, and the end part of the locking buckle (17) is clamped on the outer wall of the driving ratchet wheel (16).

7. The impervious inspection device of the enclosed impervious wall as claimed in claim 1, wherein the drilling motor (8), the lifting motor (6), the lifting hydraulic cylinder (2) and the geological radar (3) are all connected with switches, and the switches are connected with a microprocessor through wires.