Simple tunnel rock mass back water pressure detection device

Abstract

The utility model relates to a simple tunnel rock mass back water pressure detection device, which belongs to the technical field of test instruments and comprises a main pipe, one end of the main pipe is fixedly connected with a three-way valve, one end of the three-way valve far away from the main pipe is fixedly connected with an auxiliary pipe, and one end of the auxiliary pipe far away from the three-way valve is communicated with a pressure gauge. A supporting piece is arranged on the main pipe; the supporting piece comprises a mounting ring with one end in sliding connection with the outer side of the main pipe, the outer side of the main pipe is fixedly connected with a check block with one end extending into the mounting ring, the outer side of the main pipe is in threaded connection with a threaded ring, and a telescopic rod is hinged to the outer side of the mounting ring. According to the simple tunnel rock mass back water pressure detection device, the main pipe inserted into the tunnel rock mass can guide out gushing water, when water flow is directly guided out through the three-way valve, installation of the branch pipe can be facilitated, and after installation is completed, the three-way valve can be rotated to guide the gushing water to the pressure gauge, so that the water pressure is accurately detected, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test instruments, in particular to a simple water pressure detection device behind a tunnel rock mass. Background Art

[0002] The most common and serious problem of tunnels built in areas with abundant groundwater is water seepage. Water seepage itself will corrode the steel bars and affect the durability of the structure; and the water pressure behind the lining will affect the safe operation of the tunnel.

[0003] Therefore, water gushing is often encountered during tunnel excavation, and the pressure of the water gushing is crucial to the preparation of treatment plans. However, the water gushing pressure is generally estimated conservatively, and it is difficult to provide an accurate water gushing pressure value, which leads to too much redundancy in the treatment plan and poor economy and efficiency. Therefore, a simple water pressure detection device behind the tunnel rock mass is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a simple water pressure detection device behind a tunnel rock mass, which has the advantages of improving measurement accuracy and solves the problem of poor measurement accuracy.

[0005] To achieve the above object, the utility model provides the following technical solution: a simple water pressure detection device behind a tunnel rock mass, comprising a main pipe, one end of the main pipe is fixedly connected to a three-way valve, one end of the three-way valve away from the main pipe is fixedly connected to a secondary pipe, and one end of the secondary pipe away from the three-way valve is connected to a pressure gauge;

[0006] A support member is provided on the main pipe;

[0007] The support member includes a mounting ring with one end slidably connected to the outer side of the main pipe, a block with one end extending to the inside of the mounting ring is fixedly connected to the outer side of the main pipe, a threaded ring is threadedly connected to the outer side of the main pipe, a telescopic rod is hinged to the outer side of the mounting ring, a hanging ring is fixedly connected to the outer side of the main pipe, a docking hole is provided on the inner wall of the mounting ring, and a connecting groove with one end connected to the docking hole is provided on the mounting ring.

[0008] Furthermore, a mounting hole is provided on the mounting ring, and the number of the telescopic rods is two, and the two telescopic rods are symmetrically distributed on the upper and lower sides of the mounting ring.

[0009] Furthermore, the telescopic rod is composed of a sleeve rod, a spring and a slide rod, the end of the sleeve rod is hinged on the mounting ring, the slide rod is slidably connected to the inner side of the sleeve rod, and the spring is fixedly connected between the inner side of the sleeve rod and the end of the slide rod.

[0010] Furthermore, one end of the slide rod located outside the sleeve rod is J-shaped, and the J-shaped end of the slide rod is matched with the hanging ring.

[0011] Furthermore, an outer side of the main pipe is provided with an external thread, and the external thread cooperates with the thread on the inner wall of the threaded ring.

[0012] Furthermore, the number of the stoppers is two, and the two stoppers are symmetrically distributed on the outside of the main pipe. The inner side wall of the mounting ring and the outer side of the main pipe are both fixedly connected with a sealing ring.

[0013] Furthermore, the specification of the stopper is adapted to the specification of the docking hole, the connecting groove is arc-shaped, the number of the connecting grooves is two, and the two connecting grooves are staggered and symmetrically distributed on the mounting ring.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The simple water pressure detection device behind the tunnel rock mass can be plugged into the main pipe in the tunnel rock mass to divert the gushing water. When the water flow is directly diverted through the three-way valve, the installation of the branch pipe can be facilitated. After the installation is completed, the three-way valve can be turned to direct the gushing water to the pressure gauge to accurately detect the water pressure and improve the detection accuracy. During the installation of the main pipe, after the main pipe passes through the installation ring and the retaining ring is rotated into the connecting groove, the threaded ring can be tightened and the telescopic rod and the hanging ring can be hooked to complete the installation. Conversely, the threaded ring can be rotated in the opposite direction to pull out the telescopic rod, and the main pipe can be rotated to remove it, so as to facilitate the construction personnel to dismantle and replace the entire device at a later time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a three-dimensional schematic diagram of the mounting ring structure of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the telescopic rod structure of the utility model.

[0020] In the figure: 1 main pipe, 2 three-way valve, 3 auxiliary pipe, 4 pressure gauge, 5 support, 51 mounting ring, 52 telescopic rod, 521 sleeve rod, 522 spring, 523 slide rod, 53 threaded ring, 54 hanging ring, 55 stopper, 56 sealing ring, 57 mounting hole, 58 docking hole, 59 connecting groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 In this embodiment, a simple water pressure detection device behind a tunnel rock mass comprises a main pipe 1, one end of the main pipe 1 is fixedly connected to a three-way valve 2, one end of the three-way valve 2 away from the main pipe 1 is fixedly connected to a secondary pipe 3, and one end of the secondary pipe 3 away from the three-way valve 2 is connected to a pressure gauge 4;

[0023] A support member 5 is provided on the main pipe 1;

[0024] In this embodiment, the main pipe 1 inserted into the tunnel rock mass can divert the gushing water, and when the water flow is directly diverted through the three-way valve 2, the installation of the branch pipe 1 can be facilitated. After the installation is completed, the three-way valve 2 can be rotated to direct the gushing water to the pressure gauge 4 to accurately detect the water pressure and improve the detection accuracy.

[0025] See also Figures 1 to 4 In this embodiment, the support member 5 includes a mounting ring 51 with one end slidably connected to the outer side of the main pipe 1, a stopper 55 with one end extending to the inside of the mounting ring 51 is fixedly connected to the outer side of the main pipe 1, a threaded ring 53 is threadedly connected to the outer side of the main pipe 1, a telescopic rod 52 is hingedly connected to the outer side of the mounting ring 51, a hanging ring 54 is fixedly connected to the outer side of the main pipe 1, a docking hole 58 is provided on the inner wall of the mounting ring 51, and a connecting groove 59 with one end connected to the docking hole 58 is provided on the mounting ring 51.

[0026] In this embodiment, during the installation of the main pipe 1, after the main pipe 1 passes through the installation ring 51 and the retaining ring 55 is rotated into the connecting groove 59, the threaded ring 53 can be tightened and the telescopic rod 52 and the hanging ring 54 can be hooked to complete the installation. Conversely, the threaded ring 53 can be rotated in the opposite direction to pull out the telescopic rod 52, and the main pipe 1 can be rotated and removed, so as to facilitate the construction personnel to dismantle and replace the entire device at a later time.

[0027] Among them, a mounting hole 57 is opened on the mounting ring 51, and the mounting hole on the mounting ring 51 can use conventional screws or anchor rods to fix the mounting ring 51 on the rock mass. There are two telescopic rods 52, and the two telescopic rods 52 are symmetrically distributed on the upper and lower sides of the mounting ring 51. The connection between the mounting ring 52 and the main pipe 1 is further strengthened by the two telescopic rods 52.

[0028] In addition, the telescopic rod 52 is composed of a sleeve rod 521, a spring 522 and a slide rod 523. The end of the sleeve rod 521 is hinged on the mounting ring 51, the slide rod 523 is slidably connected to the inner side of the sleeve rod 521, and the spring 522 is fixedly connected between the inner side of the sleeve rod 521 and the end of the slide rod 523, so that the slide rod 523 can slide in the sleeve rod 521 and be reset by the spring 522.

[0029] Secondly, one end of the slide rod 523 located outside the sleeve rod 521 is J-shaped, and the J-shaped end of the slide rod 523 is adapted to the hanging ring 54, so that the slide rod 523 sliding in the sleeve rod 521 can slide onto the hanging ring 54 and hook the hanging ring 54, thereby reducing the possibility of the main pipe 1 loosening.

[0030] Secondly, an external thread is formed on the outside of the main pipe 1 , and the external thread cooperates with the thread on the inner wall of the threaded ring 53 , so that the rotating threaded ring 53 can be moved and adjusted laterally on the outside of the main pipe 1 .

[0031] Then, there are two blocks 55, which are symmetrically distributed on the outside of the main pipe 1. The inner wall of the mounting ring 51 and the outside of the main pipe 1 are fixedly connected with a sealing ring 56 to increase the sealing performance of the connection between the main pipe 1, the mounting ring 51 and the tunnel rock mass.

[0032] Finally, the specifications of the stopper 55 are adapted to the specifications of the docking hole 58, the connecting groove 59 is arc-shaped, and there are two connecting grooves 59. The two connecting grooves 59 are staggered and symmetrically distributed on the mounting ring 51, so that the stopper 55 rotated into the connecting groove 59 can be blocked by the mounting ring 51, thereby achieving the blocking of the main pipe 1.

[0033] The working principle of the above embodiment is:

[0034] After the water gushing position is reached by the air gun drill, the main pipe 1 can be plugged into the tunnel rock borehole to guide the gushing water out. When the water flow is directly guided out by the three-way valve 2, it is discharged downward, which can facilitate the installation of the branch pipe 1 and reduce the influence of water pressure on the installation of the main pipe 1. After the installation is completed, the three-way valve 2 can be rotated to guide the gushing water to the pressure gauge 4, and the gushing water pressure at this position can be tested. The pressure gauge can accurately read it, providing a basis for writing a treatment plan and improving the detection accuracy. During the installation of the main pipe 1, after the main pipe 1 passes through the installation ring 51 and the retaining ring 55 is rotated into the connecting groove 59, the threaded ring 53 can be tightened and the telescopic rod 52 and the hanging ring 54 can be hooked to complete the installation. Conversely, the threaded ring 53 can be loosened by reverse rotation to pull the J-shaped end of the telescopic rod 52 away from the hanging ring 54, and the main pipe 1 can be removed by reverse rotation on the installation ring 51, so as to facilitate the construction personnel to dismantle and replace the entire device later.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A simple water pressure detection device behind a tunnel rock mass, comprising a main pipe (1), characterized in that: One end of the main pipe (1) is fixedly connected to a three-way valve (2), one end of the three-way valve (2) away from the main pipe (1) is fixedly connected to a secondary pipe (3), and one end of the secondary pipe (3) away from the three-way valve (2) is connected to a pressure gauge (4); The main pipe (1) is provided with a support member (5); The support member (5) comprises a mounting ring (51) having one end slidably connected to the outer side of the main pipe (1); a stopper (55) having one end extending into the interior of the mounting ring (51) is fixedly connected to the outer side of the main pipe (1); a threaded ring (53) is threadedly connected to the outer side of the main pipe (1); a telescopic rod (52) is hingedly connected to the outer side of the mounting ring (51); a hanging ring (54) is fixedly connected to the outer side of the main pipe (1); a docking hole (58) is provided on the inner wall of the mounting ring (51); and a connecting groove (59) having one end connected to the docking hole (58) is provided on the mounting ring (51).

2. A simple water pressure detection device behind a tunnel rock mass according to claim 1, characterized in that: The mounting ring (51) is provided with a mounting hole (57), and the number of the telescopic rods (52) is two, and the two telescopic rods (52) are symmetrically distributed on the upper and lower sides of the mounting ring (51).

3. A simple water pressure detection device behind a tunnel rock mass according to claim 1, characterized in that: The telescopic rod (52) is composed of a sleeve rod (521), a spring (522) and a slide rod (523); the end of the sleeve rod (521) is hinged on the mounting ring (51); the slide rod (523) is slidably connected to the inner side of the sleeve rod (521); and the spring (522) is fixedly connected between the inner side of the sleeve rod (521) and the end of the slide rod (523).

4. A simple water pressure detection device behind a tunnel rock mass according to claim 3, characterized in that: One end of the sliding rod (523) located outside the sleeve rod (521) is J-shaped, and the J-shaped end of the sliding rod (523) is matched with the hanging ring (54).

5. A simple water pressure detection device behind a tunnel rock mass according to claim 1, characterized in that: The outer side of the main pipe (1) is provided with an external thread, and the external thread cooperates with the thread on the inner wall of the threaded ring (53).

6. A simple tunnel rock back water pressure detection device according to claim 1, characterized in that: The number of the stoppers (55) is two, and the two stoppers (55) are symmetrically distributed on the outside of the main pipe (1). The inner side wall of the mounting ring (51) and the outer side of the main pipe (1) are both fixedly connected with a sealing ring (56).

7. A simple tunnel rock back water pressure detection device according to claim 1, characterized in that: The specification of the stopper (55) is compatible with the specification of the docking hole (58); the connecting groove (59) is arc-shaped; there are two connecting grooves (59); the two connecting grooves (59) are staggered and symmetrically distributed on the mounting ring (51).

Images