Method and device for processing foundation rock surface of railway tunnel

文档序号:4518 发布日期:2021-09-17 浏览:59次 中文

1. A method for processing a foundation rock surface of a railway tunnel is characterized by comprising the following steps: the method comprises the following steps:

s1, drilling, namely drilling a cylindrical bottom hole (1) at a water outlet point of the bedrock surface, and drilling a step hole (11) with the diameter larger than that of the bottom hole (1) at the opening position of the bottom hole (1);

s2, pumping water, sucking residual water in the bottom hole (1) by using a processing device, and discharging the residual water to an open area outside a construction site;

s3, performing waterproof treatment, namely paving a cylindrical waterproof coiled material (12) with a step-shaped opening in the bottom hole (1) and the step hole (11), enabling the waterproof coiled material (12) to be flush with the inner walls of the bottom hole (1) and the step hole (11), and embedding a steel ring (13) in the step hole (11) to realize the compression and fixation of the waterproof coiled material (12);

s4, pouring, namely pouring concrete in the waterproof roll (12), and vibrating the concrete;

s5, sanding, and spraying a layer of sand on the construction surface of the bedrock surface.

2. The method for processing the bedrock surface of the railway tunnel according to claim 1, wherein: in step S2, before the waterproof roll (12) is laid, cement dry mortar is spread in the bottom hole (1) and uniformly applied.

3. The method for processing the bedrock surface of the railway tunnel according to claim 2, wherein: in step S2, before casting, glue is applied to the inner wall of the waterproof roll (12).

4. The utility model provides a processing apparatus of railway tunnel bedrock face which characterized in that: including house steward (2), set up in water pump (3) and a plurality of intercommunication of house steward (2) upper end position house steward (2) lower extreme divide pipe (4), house steward (2) vertical setting just is used for inserting bottom outlet (1) in, a plurality of divide pipe (4) evenly set up in the lower extreme of house steward (2), and deviate from the one end slope of house steward (2) sets up downwards.

5. The apparatus for processing bedrock surface of railway tunnel according to claim 4, characterized in that: the branch pipe (4) comprises an outer pipe (41) connected with the main pipe (2) and a flexible inner pipe (42) connected with the outer pipe (41) in a sliding mode, and a driving mechanism (5) used for controlling the inner pipe (42) to slide is arranged on the outer pipe (41).

6. The apparatus for processing bedrock surface of railway tunnel according to claim 5, characterized in that: the opening of the inner pipe (42) is arranged in a flat opening shape, and the end surface is arc-shaped.

7. The apparatus for processing bedrock surface of railway tunnel according to claim 5, characterized in that: the driving mechanism (5) comprises a duplicate gear (51) and a duplicate rack (52), the duplicate rack (52) is arranged on the outer side wall of the inner tube (42) along the length direction of the inner tube (42), a sliding groove (53) for embedding the duplicate rack (52) is arranged on the inner wall of the outer tube (41), a groove (54) is formed in the middle of the sliding groove (53), the duplicate gear (51) is located in the groove (54) and meshed with the duplicate rack (52), and a control mechanism (6) for controlling the rotation of the duplicate gear (51) is arranged on the header pipe (2).

8. The apparatus for processing bedrock surface of railway tunnel according to claim 7, characterized in that: control mechanism (6) include control lever (61) and a plurality of stay cord (62), vertical sliding connection in control lever (61) is in house steward (2), and the lower extreme runs through house steward (2), the lower extreme of control lever (61) is provided with backing plate (64), and the outer wall is provided with and is located backing plate (64) with spring (65) between house steward (2) lower extreme, it is a plurality of the one end of stay cord (62) is fixed in the upper end of control lever (61), and the other end runs through the terminal surface and recess (54) of outer tube (41) are fixed in to the internal winding after to duplicate gear (51) to be provided with the torsional spring on duplicate gear (51).

9. The apparatus for processing bedrock surface of railway tunnel according to claim 8, characterized in that: the lower end of the branch pipe (4) and the lower end face of the backing plate (64) are rotatably connected with universal wheels (43).

Background

The bed rock surface is the hard rock layer under the loose materials (soil and subsoil) on the earth land surface. With the continuous enhancement of the construction strength of national infrastructure, the number of various tunnel construction projects is gradually increased, and in the tunnel construction projects, construction is generally required to be carried out on a bedrock surface.

However, in the water-rich area and the construction process of the tunnel construction project, some water outlet points are easy to appear on the tunnel bedrock surface, which not only brings inconvenience to the construction operation, but also affects the construction quality in the later period. Therefore, how to timely treat the water outlet point of the tunnel bed rock surface and ensure the dry construction of the tunnel bed rock surface is very important.

Disclosure of Invention

In order to ensure the dry construction of the tunnel bedrock surface, the application aims to provide a method for processing the railway tunnel bedrock surface.

The method for processing the foundation rock surface of the railway tunnel adopts the following technical scheme.

A method for processing a foundation rock surface of a railway tunnel comprises the following steps:

s1, drilling, namely drilling a cylindrical bottom hole at a water outlet point of the bedrock surface, and drilling a step hole with the diameter larger than that of the bottom hole at the opening position of the bottom hole;

s2, pumping water, sucking residual water in the bottom hole by using a treatment device, and discharging the residual water to an open area outside a construction site;

s3, performing waterproof treatment, namely paving a cylindrical waterproof roll with a step-shaped opening in the bottom hole and the step hole to enable the waterproof roll to be flush with the inner walls of the bottom hole and the step hole, and embedding a steel ring into the step hole to realize the compression fixation of the waterproof roll;

s4, pouring, namely pouring concrete in the waterproof roll and vibrating the concrete;

s5, sanding, and spraying a layer of sand on the construction surface of the bedrock surface.

Through adopting above-mentioned technical scheme, through boring bottom hole and step hole at the play water point to lay waterproofing membrane, pour the shutoff to the bottom hole simultaneously, realize the shutoff of play water point, influence normal construction in order to guarantee can not have the infiltration again. And meanwhile, sand stones are sprayed on the surface of the basement rock to adsorb residual water on the surface of the basement rock so as to ensure the drying of the working environment and realize the dry construction of the tunnel basement rock surface.

Optionally, in step S2, before the waterproof roll is laid, cement dry mortar is spread in the bottom hole and is evenly applied.

By adopting the technical scheme, the cement dry ash is spread in the bottom hole, so that the cement dry ash is combined with the residual water in the bottom hole to form a hard shell covering the water outlet point, and the stable plugging of the water outlet point is ensured. Simultaneously, the bottom hole is fully attached to the waterproof coiled material, and the waterproofness and the sealing performance are improved.

Optionally, in step S2, before pouring, glue is first applied to the inner wall of the waterproof roll.

Through adopting above-mentioned technical scheme, through coating glue, make waterproofing membrane and concrete abundant bonding together fixed, avoid appearing scurrying the water phenomenon to improve the water-proof effects of water outlet point.

In order to guarantee efficient construction of the tunnel bedrock face, the application further aims to provide the processing device of the railway tunnel bedrock face.

The application provides a processing apparatus of railway tunnel bedrock face adopts following technical scheme:

the utility model provides a processing apparatus of railway tunnel bed rock face, includes house steward, set up in house steward upper end position's water pump and a plurality of intercommunication the branch pipe of house steward lower extreme, the vertical setting of house steward, and be used for inserting in the bottom hole, it is a plurality of divide the pipe evenly set up in the lower extreme of house steward, and deviate from the one end slope of house steward sets up downwards.

Through adopting above-mentioned technical scheme, when needs are sucked the residual water in the bottom hole, with house steward with in the branch pipe embedding bottom hole to utilize the water pump to suck the residual water in the bottom hole, with the high-efficient outer row of realizing the residual water in the bottom hole, thereby guarantee the high-efficient construction of tunnel bedrock face.

Optionally, the branch pipe includes an outer pipe connected to the main pipe and a flexible inner pipe slidably connected to the outer pipe, and a driving mechanism for controlling the inner pipe to slide is disposed on the outer pipe.

Through adopting above-mentioned technical scheme, when sucking the residual water in the bottom hole, utilize actuating mechanism control inner tube to outwards move, divide the mouth of pipe position of pipe to change this moment to realize the continuous suction and the high-efficient suction of different positions residual water. Meanwhile, the service length of the branch pipe can be adjusted, so that the branch pipe can be adapted to bottom holes with different diameters, and the adaptability is improved.

Optionally, the orifice of the inner tube is flat, and the end surface of the inner tube is arc-shaped.

Through adopting above-mentioned technical scheme, set up to flat mouthful of form through the mouth of pipe with the inner tube to set up to arc, make the inside wall of the mouth of pipe shape laminating bottom outlet more of inner tube, realize the whole suction of residual water as far as. Simultaneously, the flat-mouth-shaped inner pipe is provided with shoveling force, so that the slag on the bottom wall of the bottom hole can be shoveled to the edge position and sucked together, the synchronous suction of residual water and residues is realized, and the efficient construction of the tunnel bedrock surface is realized.

Optionally, the driving mechanism includes a duplicate gear and a duplicate rack, the duplicate rack is disposed on the outer side wall of the inner tube along the length direction of the inner tube, a chute for embedding the duplicate rack is disposed on the inner wall of the outer tube, a groove is disposed in the middle of the chute, the duplicate gear is disposed in the groove and engaged with the duplicate rack, and a control mechanism for controlling the rotation of the duplicate gear is disposed on the main pipe.

By adopting the technical scheme, when the inner pipe is required to be controlled to slide, the duplex gear is controlled to rotate, and then the duplex gear is utilized to drive the duplex rack to move synchronously, so that the sliding control and the telescopic control of the inner pipe are realized. Therefore, stable sliding and telescopic control of the inner pipe are realized by arranging the driving mechanism with simple and ingenious structure.

Optionally, control mechanism includes control lever and a plurality of stay cord, the vertical sliding connection of control lever in house steward, and the lower extreme runs through house steward, the lower extreme of control lever is provided with the backing plate, and the outer wall is provided with and is located the backing plate with spring between the house steward lower extreme, it is a plurality of the one end of stay cord is fixed in the upper end of control lever, and the other end runs through after the terminal surface of outer tube and the recess inwards twine and be fixed in duplicate gear to be provided with the torsional spring on the duplicate gear.

Through adopting above-mentioned technical scheme, when the control inner tube stretches out, press the house steward, make the control lever slide and imbed in the house steward to press the compression of dynamic spring. At the moment, the driving rod pulls the pull rope to synchronously move and controls the pull rope to unreel, and at the moment, the pull rope controls the duplicate gear to rotate outwards and controls the inner pipe to stretch out. When the inner pipe is controlled to retract, the driving main pipe moves upwards, the spring bounces and drives the control rod to move reversely, then the dual gears automatically rotate and realize winding of the pull rope, and the inner pipe is controlled to retract. Therefore, automatic rotation control of the duplicate gear is realized by arranging the self-adjusting control mechanism, so that automatic telescopic control of the inner pipe is realized.

Optionally, the lower end of the branch pipe and the lower end face of the base plate are rotatably connected with universal wheels.

Through adopting above-mentioned technical scheme, through setting up the universal wheel increase backing plate and the smoothness degree between minute pipe and the bottom hole, avoid appearing the card phenomenon of stopping a ton.

In summary, the present application includes at least one of the following beneficial technical effects:

plugging the water outlet point on the basement rock surface to ensure that water seepage cannot occur to influence normal construction, and spraying gravels on the basement rock surface to adsorb residual water on the surface of the basement rock surface to ensure the drying of a working environment and realize the dry construction of the tunnel basement rock surface;

the efficient suction and discharge of residual water in the bottom hole are realized by arranging the efficient treatment device, so that the efficient construction of the tunnel bedrock surface is ensured;

through setting up the branch pipe that uses length can self-regulating, realize the continuous suction and the high-efficient suction of different positions residual water, simultaneously can the bottom hole of different diameters of adaptation, improve the suitability.

Drawings

Fig. 1 is a schematic view of a construction state in embodiment 1 of the present application.

Fig. 2 is a schematic structural view of a processing apparatus in embodiment 2 of the present application.

Fig. 3 is a schematic view of the internal structure of the header pipe in embodiment 2 of the present application.

Fig. 4 is a schematic structural view of a branched pipe in embodiment 2 of the present application.

Fig. 5 is a partially enlarged schematic view of the area a in fig. 3.

Description of reference numerals: 1. a bottom hole; 11. a stepped bore; 12. waterproof coiled materials; 13. steel rings; 2. a header pipe; 3. a water pump; 4. pipe distribution; 41. an outer tube; 42. an inner tube; 43. a universal wheel; 5. a drive mechanism; 51. a duplicate gear; 52. a duplex rack; 53. a chute; 54. a groove; 6. a control mechanism; 61. a control lever; 62. pulling a rope; 63. a guide bar; 64. a base plate; 65. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Example 1: the embodiment of the application discloses a method for processing a foundation rock surface of a railway tunnel.

Referring to fig. 1, the method for processing the foundation rock surface of the railway tunnel comprises the following steps:

and S1, drilling, finding a water outlet point on the surface of the bedrock, and drilling a cylindrical bottom hole 1 at the water outlet point on the surface of the bedrock, wherein the hole diameter of the bottom hole 1 is 50cm, and the depth of the bottom hole is 60 cm. Then, a step hole 11 with the diameter larger than that of the bottom hole 1 is drilled at the opening position of the bottom hole 1, the hole diameter of the step hole 11 is 60cm, and the depth is 10 cm.

And S2, pumping water, sucking the residual water in the bottom hole 1 by using the processing device, and discharging the residual water to an open area outside the construction site, thereby ensuring that the open area cannot be driven by vehicles or pedestrians. And then uniformly spreading the cement dry ash in the bottom hole 1 to form cement wet ash, and finally uniformly smearing the cement wet ash to realize the primary plugging of a water outlet point.

And S3, waterproofing treatment, namely taking the waterproof roll 12 out, wherein the waterproof roll 12 is cylindrical and provided with a step-shaped opening, and the shape of the waterproof roll is the same as that of the bottom hole 1 and the step hole 11. Then, the waterproof roll 12 is laid in the bottom hole 1 and the step hole 11 from bottom to top, so that the waterproof roll 12 is flush with the inner walls of the bottom hole 1 and the step hole 11. And finally, the steel ring 13 is clamped and embedded into the stepped hole 11, so that the upper end of the waterproof roll 12 is pressed and fixed.

And S4, pouring, namely uniformly coating glue on the inner wall of the waterproof roll 12, then pouring concrete into the waterproof roll 12, and vibrating the concrete to realize pouring operation.

S5, sanding, and spraying a layer of sand on the construction surface of the bedrock surface to realize the adsorption of residual water on the surface of the bedrock surface and ensure the dry construction of the tunnel bedrock surface.

Example 2: the embodiment of the application discloses a processing apparatus of railway tunnel bedrock face.

Referring to fig. 1 and 2, the treatment device includes a main pipe 2, a water pump 3, and a plurality of branch pipes 4. The header pipe 2 is vertically arranged and is used for being inserted into the bottom hole 1. The water pump 3 is arranged at the upper end of the main pipe 2, and a water inlet of the water pump 3 is communicated with the upper end of the main pipe 2. A plurality of minute pipes 4 intercommunication and evenly set up in house steward 2's lower extreme, and a plurality of minute pipes 4 deviate from house steward 2's one end slope and set up downwards, and be used for imbedding in the bottom outlet 1 to realize the synchronous suction and the emission of 1 each position residual water in bottom outlet.

Referring to fig. 2 and 3, the branch pipe 4 includes an outer pipe 41 and an inner pipe 42, the outer pipe 41 is connected to the main pipe 2, the inner pipe 42 is a flexible hard rubber pipe and is slidably connected to the outer pipe 41, so that the branch pipe 4 can be adjusted in length, the residual water in different positions can be sucked, and the residual water in the bottom holes 1 with different diameters can also be sucked.

Referring to fig. 2 and 3, the position of the outer pipe 41 of the inner pipe 42 is flat, and the end surface is arc-shaped, so as to fit the outer edge of the bottom wall of the bottom hole 1, thereby completely sucking the residual water and simultaneously removing the residue by scraping and sucking. Meanwhile, the lower end of the branch pipe 4 is rotatably connected with a universal wheel 43 which is abutted against the bottom wall of the bottom hole 1, so that the smoothness of the branch pipe 4 during movement is improved.

Referring to fig. 3 and 4, the outer tube 41 is provided with a driving mechanism 5 for controlling the reciprocating sliding movement of the inner tube 42. The driving mechanism 5 includes a duplex gear 51 and a duplex rack 52, the duplex rack 52 is disposed on the outer side wall of the inner tube 42 along the length direction of the inner tube 42, and the duplex gear 51 is a broken tooth, so as to ensure that the duplex rack 52 is not affected when the inner tube 42 is bent.

Referring to fig. 3 and 5, the inner wall of the outer tube 41 is provided with a sliding groove 53 arranged along the axial direction, one end of the sliding groove 53 close to the header pipe 2 is in a blocking shape, and the other end penetrates through the end face of the outer tube 41 and is used for the sliding insertion of the duplex rack 52.

Referring to fig. 3 and 5, a groove 54 is formed in the middle of the sliding groove 53, the duplicate gear 51 is located in the groove 54, the inner wall of the crocodile groove 54 is rotatably connected, and meanwhile, the duplicate gear 51 is meshed with the duplicate rack 52 to control the movement of the duplicate gear 51, so that the telescopic control of the inner tube 42 is realized.

Referring to fig. 3 and 5, the manifold 2 is provided with a control mechanism 6 for controlling the rotation of the double gear 51. The control mechanism 6 comprises a control rod 61 and a plurality of pull cords 62, the control rod 61 being located inside the main conduit 2 and having a lower end extending through the main conduit 2 and being vertically slidably connected to the main conduit 2. The inside of the main pipe 2 is horizontally provided with a guide rod 63 through which the control rod 61 passes for ensuring the stability of the control rod 61 in the vertical movement process.

Referring to fig. 3 and 5, a pad 64 is disposed at the lower end of the control rod 61, a universal wheel 43 abutting against the bottom wall of the bottom hole 1 is rotatably connected to the lower end surface of the pad 64, a spring 65 is sleeved on the outer wall of the pad 64, and the spring 65 is disposed between the pad 64 and the lower end of the manifold 2 to realize automatic motion control of the pad 64.

Referring to fig. 3 and 5, one end of each of the plurality of pulling ropes 62 is fixed to the upper end of the control rod 61, and the other end thereof penetrates the end surface of the outer tube 41 and the groove 54 and is located inside the groove 54. The portion of the pulling rope 62 located in the groove 54 is wound and fixed on the dual gear 51, and the winding direction is inward, so that when the pulling rope 62 is unwound, the dual gear 51 rotates outward, that is, the pulling rope is used for controlling the inner tube 42 to extend outward. Wherein, a torsion spring (not shown in the figure) is further arranged on the duplicate gear 51 for realizing the automatic rolling of the pull rope 62.

Therefore, when the residual water in the bottom hole 1 is sucked, the main pipe 2 and the branch pipes 4 are embedded into the bottom hole 1, and the universal wheels 43 on the lower end surface of the base plate 64 abut against the bottom wall of the bottom hole 1, so that the residual water in the bottom hole 1 is sucked. The manifold 2 is then slowly released and the automatic drive control rod 61 is slidably inserted into the manifold 2 under the influence of gravity, while the plate 64 compresses the compression spring 65.

Meanwhile, the driving rod pulls the pull rope 62 to move synchronously, the pull rope 62 is controlled to unwind, the pull rope 62 controls the duplex gear 51 to rotate outwards at the moment, and the inner pipe 42 is controlled to automatically extend outwards through the matching of the duplex gear 51 and the duplex rack 52, so that the residual water at different positions in the bottom hole 1 can be sucked synchronously.

When the residual water in the bottom hole 1 is pumped, the lifting driving manifold 2 moves upwards, the spring 65 will be bounced and drive the control rod 61 to move reversely, then the control rod 61 releases the acting force on the pulling rope 62, and the dual gear 51 automatically rotates reversely to wind the pulling rope 62 and control the inner pipe 42 to retract automatically.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

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