CN213275283U

CN213275283U - Engineering geology reconnaissance water-pressure test device

Info

Publication number: CN213275283U
Application number: CN202022139147.2U
Authority: CN
Inventors: 刘贵春
Original assignee: Zhongcai Geological Engineering Exploration Academy Co ltd
Current assignee: Zhongcai Geological Engineering Exploration Academy Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-05-25
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a pressurized-water test device for engineering geological exploration, which comprises a support frame and a water injection tank, wherein the top of the support frame is connected with a fixed seat, the inner side of the fixed seat is slidably connected with a pressurized-water outer pipe, the outer side of the pressurized-water outer pipe is provided with a distance scale line, the bottom of the pressurized-water outer pipe is provided with a water injection section, two ends of the water injection section are respectively and hermetically sleeved with a fixed sleeve, the outer side of the fixed sleeve is connected with a sealed air bag ring, the outer side of the sealed air bag ring is provided with a first air bag ring and a second air bag ring side by side, the outer sides of the first air bag ring and the second air bag ring are respectively provided with a fixed ring and a sealing ring, the utility model has the advantages of simple structure, good stability and excellent sealing performance, the accuracy of test results is ensured, the depth of the water injection section in a drill hole, and (4) accurately measuring the pressurized water conditions of different depths of the drilled hole, thereby judging the water permeability of different positions of the rock mass.

Description

Engineering geology reconnaissance water-pressure test device

Technical Field

The utility model relates to an engineering geology reconnaissance technical field specifically is an engineering geology reconnaissance water-pressure test device.

Background

The engineering geological survey is a geological survey research work carried out for finding out geological factors influencing engineering buildings, a water pressing test is an in-situ test for pressing water into a drill hole in a high-pressure mode and calculating and knowing the development condition and water permeability of a rock mass crack according to the water absorption capacity of the rock mass, the water pressing test is an in-situ test for isolating a drill hole test section with a certain length by using special water stopping equipment and pressing water into the drill hole section by using a fixed water head, water permeates into the rock mass through the crack around the hole wall, the final permeated water amount tends to a stable value, the strength of the water permeability of the rock mass can be judged according to the water pressing head, the length of the test section and the stable permeated water amount, in the water pressing test, because the inlet port of the drill hole is not tightly sealed, the extruded water can emerge through the drill hole, and some sealing structures are unstable in a high-pressure environment and easy to loosen, so that the sealing performance with the hole, therefore, the test result is influenced, the position of a water pressure test section cannot be adjusted in a water pressure test, and the water pressure condition of the specific section of depth of a drill hole is difficult to judge, so that an engineering geological exploration water pressure test device needs to be designed to solve the existing problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an engineering geology reconnaissance pressurized-water test device, stability is good, and the leakproofness is good, can carry out the pressurized-water test by the segmentation, can adjust the position of pressurized-water test section in the drilling, the pressurized-water condition of the different degree of depth of accurate measurement drilling to judge the water permeability of the different positions of rock mass, can effectively solve the problem in the background art.

In order to solve the technical problem, the utility model provides a following technical scheme:

a pressurized water test device for engineering geological exploration comprises a support frame and a water injection tank, wherein the top of the support frame is connected with a fixed seat, the inner side of the fixed seat is connected with a pressurized water outer pipe in a sliding manner, the outer side of the pressurized water outer pipe is provided with distance scale marks, the bottom of the pressurized water outer pipe is provided with a water injection section, two ends of the water injection section are respectively sleeved with a fixed sleeve in a sealing manner, the outer side of the fixed sleeve is connected with a sealed air bag ring, the outer side of the sealed air bag ring is provided with a first air bag ring and a second air bag ring side by side, the outer sides of the first air bag ring and the second air bag ring are respectively provided with a fixed ring and a sealing ring, the top of the sealed air bag ring is connected with an inflator pump through a high-pressure water pipe, the bottom of the water injection tank is sequentially connected with a booster pump, a high, the bottom end of the pressurized-water inner pipe is provided with a water injection head, and the water injection head is positioned at the top of the inner cavity of the water injection section.

Further, the fixing seat is designed to be in the shape of a circular step, a fastening bolt is connected to the outer side of the top of the fixing seat in a threaded mode, and the end portion of the fastening bolt penetrates through the fixing seat and then is connected to the surface of the pressurized water outer pipe in an abutting mode.

Further, the end of the fastening bolt is connected with a protective rubber pad.

Further, the unit of the distance scale mark is centimeter, and the distance scale mark is set as the distance between the fixed seat and the water injection section.

Further, the sealed air bag rings are respectively communicated with the first air bag ring and the second air bag ring, and the sealed air bag rings are communicated with each other through a high-pressure air guide pipe.

Further, the width of the sealing ring is 2 times of that of the fixing ring, anti-skidding teeth are uniformly distributed on the outer surface of the fixing ring, and sealing strips are uniformly distributed on the outer surface of the sealing ring.

Furthermore, the top end of the water pressing outer pipe is symmetrically connected with a pressing handle, and the bottom end of the water pressing outer pipe is connected with a drill bit in a sealing mode.

Further, the bottom of the pressurized water inner pipe is connected to the inner side of the pressurized water outer pipe in a sealing mode through threads, and the water injection head is a spherical nozzle.

Further, strip-shaped water outlets are uniformly distributed on the outer side of the water injection section.

Further, a pressure relief valve is installed on the high-pressure air guide pipe at the air outlet of the inflator pump, and a flow meter, a pressure gauge and a regulating valve are sequentially installed on a pipeline between the pressure stabilizing box and the pressurized-water inner pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses simple structure, stability is good, and the leakproofness is good, through set up retainer plate and sealing washer respectively in sealed gasbag ring outside and inboard, after the pump is full of gas to sealed gasbag intra-annular, make the retainer plate utilize anti-skidding tooth and drilling pore wall to stabilize the pressfitting connection, the sealing washer passes through sealing strip and drilling pore wall good sealing connection, has improved the stability and the leakproofness of sealed gasbag ring, has guaranteed the accuracy of test result;

2. through setting up sealed gasbag ring at water injection section both ends, can with drilling pore wall sealing connection, form the pressurized-water test section, be convenient for carry out the pressurized-water test to the drilling segmentation, through the pressurized-water outer tube that slides from top to bottom and according to the distance scale mark in the outside, confirm the position of water injection section in the drilling, conveniently adjust the position of pressurized-water test section, the pressurized-water condition of the different degree of depth of accurate measurement drilling to judge the water permeability of different positions of rock mass.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the sealing balloon ring structure of the present invention;

FIG. 3 is a schematic cross-sectional view of the sealing balloon ring of the present invention;

FIG. 4 is a schematic view of the connection structure between the outer water pressing pipe and the fixing base;

FIG. 5 is a schematic view of the top structure of the fixing base of the present invention;

reference numbers in the figures: 1. a support frame; 2. a water injection tank; 3. a fixed seat; 4. a pressurized water outer pipe; 5. distance scale lines; 6. a water injection section; 7. fixing a sleeve; 8. sealing the balloon ring; 9. a first balloon ring; 10. a second balloon ring; 11. a stationary ring; 12. a seal ring; 13. an inflator pump; 14. a booster pump; 15. a high pressure check valve; 16. a voltage stabilizing box; 17. a pressurized water inner pipe; 18. a water injection head; 19. fastening a bolt; 20. a protective rubber pad; 21. anti-slip teeth; 22. a sealing strip; 23. pressing the handle; 24. a drill bit; 25. a strip-shaped water outlet; 26. a pressure relief valve; 27. a flow meter; 28. a pressure gauge; 29. and adjusting the valve.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely illustrative of some embodiments, but not all embodiments, and that the embodiments described herein are merely illustrative and explanatory of the present invention, and are not restrictive.

The first embodiment is as follows:

as shown in fig. 1-5, the utility model provides a technical solution: a pressurized water test device for engineering geological exploration comprises a support frame 1 and a water injection tank 2, wherein the top of the support frame 1 is connected with a fixed seat 3, the inner side of the fixed seat 3 is connected with a pressurized water outer pipe 4 in a sliding manner, the outer side of the pressurized water outer pipe 4 is provided with a distance scale mark 5, the bottom of the pressurized water outer pipe 4 is provided with a water injection section 6, the position of the water injection section 6 in a drill hole can be adjusted according to the sliding of the pressurized water outer pipe 4 from the distance scale mark 5, two ends of the water injection section 6 are respectively sleeved with a fixed sleeve 7 in a sealing manner, the outer side of the fixed sleeve 7 is connected with a sealed air bag ring 8, the outer side of the sealed air bag ring 8 is provided with a first air bag ring 9 and a second air bag ring 10 side by side, the outer sides of the first air bag ring 9 and the second air bag ring 10 are respectively provided with, guaranteed the leakproofness of water injection section 6, sealed gasbag ring 8 top is connected with pump 13 through high-pressure air duct for aerify sealed

gasbag ring

8, 2 bottoms of water injection case have connected gradually booster pump 14, high-pressure check valve 15 and surge tank 16 through high pressure water pipe, surge tank 16 tops is connected with pressurized water inner tube 17 through high pressure water pipe, pressurized water inner tube 17 activity is cup jointed at pressurized water outer tube 4 inboardly, pressurized water inner tube 17 bottom is equipped with water injection head 18, just water injection head 18 is located the inner chamber top of water injection section 6, can steadily press water to water injection section 6 internal pressure, go into the drilling to water pressure.

In this embodiment, fixing base 3 establishes the shape into circular step, 3 top outside threaded connection of fixing base has fastening bolt 19, fastening bolt 19's tip runs through and contradicts after fixing base 3 and connects on the surface of pressurized-water outer tube 4, conveniently fixes pressurized-water outer tube 4 on

fixing base

3, 19 end connection of fastening bolt has protection cushion 20, prevents to crush pressurized-water outer tube 4 for it is more firm to fix.

In this embodiment, the unit of the distance scale mark 5 is centimeter, and the distance scale mark 5 is set as the distance between the fixed seat 3 and the water injection section 6, so that when the water pressing outer pipe 4 slides up and down, the position of the water injection section 6 in the drill hole can be determined according to the distance scale mark 5 on the outer side.

In this embodiment, sealed gasbag ring 8 communicates first gasbag circle 9 and second gasbag circle 10 respectively, just through high-pressure air duct intercommunication between the sealed gasbag ring 8, conveniently aerify, the width of sealing washer 12 is 2 times of the width of retainer plate 11, just 11 surface evenly distributed of retainer plate has antiskid tooth 21, can firmly press fit on the drilling pore wall, has improved stability, 12 surface evenly distributed of sealing washer have sealing strip 22, have increased the compactness of sealing connection department, form multi-level sealing connection, have improved the leakproofness.

In this embodiment, the top end of the outer pressurized water pipe 4 is symmetrically connected with a pressing handle 23, and the bottom end of the outer pressurized water pipe 4 is hermetically connected with a drill bit 24, so that the outer pressurized water pipe 4 can be conveniently pushed up and down to move in a drilled hole.

In this embodiment, the bottom of the inner water pressing pipe 17 is connected to the inner side of the outer water pressing pipe 4 through thread sealing, so that the outer water pressing pipe 4 is connected to the inner water pressing pipe 17 in a sealing manner, the water injection head 18 is set to be a spherical nozzle, and strip-shaped water outlets 25 are uniformly distributed on the outer side of the water injection section 6, so that the water injection section 6 can uniformly inject water into a drill hole.

Example two:

as shown in fig. 1, a pressure relief valve 26 is installed on the high-pressure air duct at the air outlet of the inflator 13 for pressure relief and ensuring inflation safety, and a flow meter 27, a pressure gauge 28 and an adjusting valve 29 are sequentially installed on the pipeline between the pressure stabilizing box 16 and the pressurized water inner tube 17 for calculating the water flow value and the water pressure value in the pressurized water test, and the water pressure in the pressurized water process can be controlled and adjusted.

The utility model discloses improve in: when the engineering geological exploration water-pressure test device is used, a support frame 1 is fixed above a drill hole, a water-pressure outer pipe 4 is pushed into the drill hole by pushing a pressing handle 23, the position of a water injection section 6 in the drill hole, namely the position of a water-pressure test section, is determined according to a distance scale mark 5 on the outer side of the water injection section, then water in a water injection tank 2 is pumped into a water-pressure inner pipe 17 by a booster pump 14 through a pressure stabilizing box 16 and is injected into the drill hole from the water injection section 6 through a water injection head 18, simultaneously, the air pump 13 is filled with gas into two sealing air bag rings 8 to expand the sealing air bag rings to be connected on the wall of the rock body of the water-pressure test section in a sealing way, the drilling hole can be fixed through a fixing ring 11, so that the sealing air bag rings 8 are firmer and can be connected with the wall of the drill hole in a sealing way through a sealing ring 12, the sealing performance of the water injection section, when the water quantity of the penetration slowly tends to a stable value, the water permeability of the rock mass in the pressurized water test section can be judged.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an engineering geology reconnaissance water-pressure test device, includes support frame (1) and water injection tank (2), its characterized in that: support frame (1) top is connected with fixing base (3), fixing base (3) inboard sliding connection has pressurized-water outer tube (4), pressurized-water outer tube (4) outside is equipped with apart from scale mark (5), pressurized-water outer tube (4) bottom is equipped with water injection section (6), water injection section (6) both ends are all sealed the cover and are equipped with fixed cover (7), fixed cover (7) outside is connected with sealed gasbag ring (8), sealed gasbag ring (8) outside is equipped with first gasbag circle (9) and second gasbag circle (10) side by side, first gasbag circle (9) and second gasbag circle (10) outside are equipped with retainer plate (11) and sealing washer (12) respectively, sealed gasbag ring (8) top is connected with inflator pump (13) through high pressure water pipe, water injection case (2) bottom has connected gradually booster pump (14) through high pressure water pipe, High-pressure check valve (15) and pressure stabilizing box (16), pressure stabilizing box (16) top is connected with pressurized-water inner tube (17) through high-pressure water pipe, pressurized-water inner tube (17) activity is cup jointed at pressurized-water outer tube (4) inboard, pressurized-water inner tube (17) bottom is equipped with water injection head (18), just water injection head (18) are located the inner chamber top of water injection section (6).

2. The engineering geological survey water pressure test device of claim 1, characterized in that: the fixing base (3) is designed into a circular step shape, a fastening bolt (19) is connected to the outer side of the top of the fixing base (3) in a threaded mode, and the end portion of the fastening bolt (19) penetrates through the fixing base (3) and then is connected to the surface of the water pressing outer pipe (4) in an abutting mode.

3. The engineering geological survey water pressure test device of claim 2, characterized in that: the end part of the fastening bolt (19) is connected with a protective rubber cushion (20).

4. The engineering geological survey water pressure test device of claim 1, characterized in that: the unit of the distance scale mark (5) is centimeter, and the distance scale mark (5) is set as the distance between the fixed seat (3) and the water injection section (6).

5. The engineering geological survey water pressure test device of claim 1, characterized in that: the sealing air bag ring (8) is respectively communicated with the first air bag ring (9) and the second air bag ring (10), and the sealing air bag rings (8) are communicated with each other through a high-pressure air duct.

6. The engineering geological survey water pressure test device of claim 5, wherein: the width of the sealing ring (12) is 2 times of that of the fixing ring (11), anti-skidding teeth (21) are uniformly distributed on the outer surface of the fixing ring (11), and sealing strips (22) are uniformly distributed on the outer surface of the sealing ring (12).

7. The engineering geological survey water pressure test device of claim 1, characterized in that: the top end of the water pressing outer pipe (4) is symmetrically connected with pressing handles (23), and the bottom end of the water pressing outer pipe (4) is hermetically connected with a drill bit (24).

8. The engineering geological survey water pressure test device of claim 7, wherein: the bottom of the pressurized water inner pipe (17) is connected to the inner side of the pressurized water outer pipe (4) in a sealing mode through threads, and the water injection head (18) is a spherical nozzle.

9. The engineering geological survey water pressure test device of claim 7, wherein: and strip-shaped water outlets (25) are uniformly distributed on the outer side of the water injection section (6).

10. The engineering geological survey water pressure test device of claim 1, characterized in that: a pressure release valve (26) is installed on the high-pressure air guide pipe at the air outlet of the inflator pump (13), and a flow meter (27), a pressure gauge (28) and an adjusting valve (29) are sequentially installed on a pipeline between the pressure stabilizing box (16) and the pressurized water inner pipe (17).