Consolidation and grouting integrated construction platform for bare rock of inclined shaft

Abstract

The utility model provides an inclined shaft bare rock consolidation grouting integrated construction platform which comprises a double-drum winch and a construction platform body, the construction platform body is connected with the double-drum winch through a traction steel wire rope, and one side of the construction platform body is connected with a walking track fixed to the well wall in a sliding mode. The construction platform is formed by splicing an upper-layer grouting operation platform, a middle-layer drilling operation platform and a lower-layer drilling operation platform from top to bottom through stand columns and inclined struts, and a pedestrian crawling ladder is erected among the upper-layer grouting operation platform, the middle-layer drilling operation platform and the lower-layer drilling operation platform. And a lifting platform is arranged on the lower-layer drilling operation platform. According to the integrated construction platform for consolidation and grouting of the bare rock of the inclined shaft, the integrated construction platform is adopted, when the inclined shaft is constructed, the grouting platform moves along with the change of the position of a drill hole, meanwhile, the distance between a grouting pump and a grouting hole is guaranteed to be within a standard allowable value, and the problems that the height difference of the inclined shaft is large, and the pressure of a slurry column is difficult to control are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel excavation support equipment, in particular to an inclined shaft bare rock consolidation grouting integrated construction platform. Background Art

[0002] In pumped storage power station projects, water diversion tunnels are mostly water diversion shafts, which are usually lined with reinforced concrete or steel lining + backfill concrete. When lining with steel lining + backfill concrete, in order to avoid the reserved system grouting holes from damaging the integrity of the steel lining, it is necessary to reinforce the surrounding rock of the inclined shaft by consolidation grouting after the inclined shaft is excavated and before the pressure steel pipe is installed. According to the relevant specifications of the grouting project, the distance from the grouting pump to the grouting orifice grouting pipe should not be greater than 30m. The inclined shaft is long, the slope is steep, and the height difference varies greatly at different locations. In order to ensure the quality of consolidation grouting construction, the slurry column pressure needs to be strictly controlled during the grouting process. To meet the above requirements, the grouting station needs to be moved according to the changes in the construction site of the grouting project. At the same time, due to the limitations of the conditions in the well, the grouting equipment is difficult to arrange and inconvenient to move, and the safety risk of the construction process is high.

[0003] Therefore, there is an urgent need for an integrated construction platform for bare rock consolidation grouting in inclined shafts to solve the above problems. Summary of the invention

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide an integrated construction platform for bare rock consolidation grouting in an inclined well to solve the problems raised in the background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: an integrated construction platform system for bare rock consolidation grouting in an inclined well, comprising a double-drum winch and a construction platform, wherein the construction platform is connected to the double-drum winch by a traction wire rope, one side of the construction platform is slidably connected to a walking track fixed on the well wall, and the construction platform is composed of an upper grouting work platform, a middle drilling work platform and a lower drilling work platform, which are spliced ​​from top to bottom by columns and diagonal braces, a pedestrian ladder is set up between the upper grouting work platform, the middle drilling work platform and the lower drilling work platform, and a liftable platform is provided on the lower drilling work platform.

[0006] Preferably, the upper grouting work platform is welded by channel steel to form a frame, the top of the upper grouting work platform is fully covered with steel plates, a water retaining sill of a certain height is arranged around the upper grouting work platform, and a safety fence is arranged around the upper grouting work platform.

[0007] Preferably, the middle-layer drilling work platform and the lower-layer drilling work platform are welded by channel steel to form a frame, the middle-layer drilling work platform and the lower-layer drilling work platform are fully covered with steel mesh, and the middle-layer drilling work platform and the lower-layer drilling work platform are surrounded by safety fences.

[0008] Preferably, the construction platform is provided with walking wheels on one side connected to the walking track, the pedestrian ladder is provided on one side of the walking wheels, and the upper grouting work platform and the middle drilling work platform are both provided with pedestrian passages at the positions where the pedestrian ladders pass.

[0009] Preferably, the construction platform is equipped with a rail clamp for fixing the construction platform at a predetermined height.

[0010] Preferably, the liftable platform is arranged on the lower drilling work platform through liftable platform adjusting bolts.

[0011] The utility model has the following beneficial effects:

[0012] 1. The utility model proposes an integrated construction platform for bare rock consolidation grouting of inclined wells. By adopting the integrated construction platform, the grouting platform moves with the change of the drilling position during the inclined well construction. At the same time, the distance between the grouting pump and the grouting hole is guaranteed to be within the allowable value of the specification, which effectively solves the problem of large height difference of the inclined well and difficult control of the slurry column pressure.

[0013] 2. The utility model adopts a double-drum winch for traction. The two steel ropes of the double-drum winch are independent of each other. When one is broken, the other one still functions normally, and they can serve as safety ropes for each other. When the trolley is fixed, a rail clamp is used to fix it synchronously, which forms a "three-insurance" with the double-drum winch traction steel rope, effectively ensuring the safety of inclined shaft grouting construction.

[0014] 3. The middle-layer drilling operation platform and the lower-layer drilling operation platform of the utility model can meet the requirement that the same ring hole drilling and grouting construction can be continuously carried out after the platform is fixed, avoiding multiple reciprocating movements of the trolley and ensuring the effectiveness of the grouting construction.

[0015] 4. The utility model is made of welded steel structure, which is easy to operate and can be used in the bare rock consolidation grouting construction of inclined shafts with steel lining + backfill concrete lining, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the overall structure of the utility model;

[0017] Figure 2 It is a side view of the connection relationship between the construction platform of the utility model and its auxiliary structure;

[0018] Figure 3 This is the AA section view of the construction platform of the utility model;

[0019] Figure 4 This is a plan view of the upper working platform of the utility model;

[0020] Figure 5 This is a plan view of the middle-level working platform of the utility model;

[0021] Figure 6 This is a plan view of the lower working platform of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] See also Figures 1 to 6 An integrated construction platform system for bare rock consolidation grouting in an inclined shaft comprises a double-drum winch 1 and a construction platform 2. The construction platform 2 is connected to the double-drum winch 1 by a traction wire rope 3. One side of the construction platform 2 is slidably connected to a walking track 4 fixed on the shaft wall. The construction platform 2 is composed of an upper grouting work platform 5, a middle drilling work platform 6 and a lower drilling work platform 7, which are connected from top to bottom by columns 13 and diagonal braces 14. A pedestrian ladder 8 is set up between the upper grouting work platform 5, the middle drilling work platform 6 and the lower drilling work platform 7, and a liftable platform 9 is provided on the lower drilling work platform 7. The construction platform proposed by the utility model travels on tracks, and a three-layer working platform is arranged on the construction platform. Grouting equipment is arranged on the top platform, and drilling operations are performed on the middle and lower platforms. The grouting equipment moves along with the trolley, and the distance between the grouting pump and the grouting orifice and the slurry column pressure control are guaranteed, thereby ensuring the quality of the surrounding rock consolidation grouting construction; during the grouting construction, the grouting platform is fixed by the traction wire rope and the track clamp at the same time, thereby effectively ensuring the safety of the drilling and grouting construction.

[0024] Preferably, the upper grouting operation platform 5 is welded by channel steel to form a frame, the top of the upper grouting operation platform 5 is fully covered with steel plates, a water retaining sill of a certain height is arranged around the upper grouting operation platform 5, and a safety fence 12 is arranged around the upper grouting operation platform 5. The water retaining sill is arranged to collect water to prevent the grouting sewage from flowing around and interfering with the operation of the operation platform below, and the grouting sewage is uniformly drained to the lower wall of the inclined shaft through the sewage pipe to prevent the grouting sewage from flowing and interfering with the drilling construction below.

[0025] Preferably, the middle-layer drilling platform 6 and the lower-layer drilling platform 7 are welded by channel steel to form a frame, the middle-layer drilling platform 6 and the lower-layer drilling platform 7 are fully covered with steel mesh, and the middle-layer drilling platform 6 and the lower-layer drilling platform 7 are surrounded by safety fences 12. The middle and lower platforms perform drilling operations, and the grouting equipment moves with the trolley. The distance between the grouting pump and the grouting orifice and the slurry column pressure control are guaranteed, thereby ensuring the quality of the surrounding rock consolidation grouting construction.

[0026] Preferably, the construction platform 2 is provided with a walking wheel 10 on one side connected to the walking track 4, the pedestrian ladder 8 is provided on one side of the walking wheel 10, and the upper grouting work platform 5 and the middle drilling work platform 6 are both provided with a pedestrian passage 8.1 at the position where the pedestrian ladder 8 passes. The installation of the walking wheel ensures that the construction platform moves safely and stably on the track.

[0027] Preferably, the construction platform 2 is equipped with a rail clamp 11 for fixing the construction platform 2 at a predetermined height. The rail clamp fixes the construction platform after it is moved into place to ensure construction safety.

[0028] Preferably, the liftable platform 9 is arranged on the lower drilling work platform 7 through the liftable platform adjusting bolts 9.1. The liftable platform is adjusted to perform continuous drilling and grouting construction on the grouting holes in the same ring.

[0029] The working principle of this embodiment is as follows:

[0030] The utility model moves by means of traveling wheels and traveling tracks, and the traveling power is provided by a double-drum winch arranged in the upper flat section of the inclined shaft. The grouting equipment is arranged on the platform, and the platform is moved as the grouting hole position changes, and the grouting equipment moves synchronously. The distance between the grouting equipment and the grouting hole always meets the specification requirements, and the slurry column pressure is effectively controlled, so that the bare rock consolidation grouting construction of steep and long inclined shafts can be realized; the middle and lower working platforms can meet the continuous construction of grouting holes in the same ring, avoid the reciprocating movement of the platform, and ensure the efficiency of the grouting construction.

[0031] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An integrated construction platform for bare rock consolidation grouting in an inclined shaft, comprising a double-drum winch (1) and a construction platform (2), characterized in that: The construction platform (2) is connected to the double-drum winch (1) via a traction wire rope (3); one side of the construction platform (2) is slidably connected to a walking track (4) fixed on the well wall; the construction platform (2) is composed of an upper grouting work platform (5), a middle drilling work platform (6) and a lower drilling work platform (7) connected from top to bottom via columns (13) and diagonal braces (14); a pedestrian ladder (8) is arranged between the upper grouting work platform (5), the middle drilling work platform (6) and the lower drilling work platform (7); and a liftable platform (9) is arranged on the lower drilling work platform (7).

2. The integrated construction platform for bare rock consolidation grouting of inclined shaft according to claim 1, characterized in that: The upper grouting operation platform (5) is welded by channel steel to form a frame, the top of the upper grouting operation platform (5) is fully covered with steel plates, a water retaining sill of a certain height is arranged around the upper grouting operation platform (5), and a safety fence (12) is arranged around the upper grouting operation platform (5).

3. The integrated construction platform for bare rock consolidation grouting of inclined wells according to claim 1, characterized in that: The middle-layer drilling work platform (6) and the lower-layer drilling work platform (7) are welded by channel steel to form a frame. The middle-layer drilling work platform (6) and the lower-layer drilling work platform (7) are fully covered with steel mesh. The middle-layer drilling work platform (6) and the lower-layer drilling work platform (7) are surrounded by safety fences (12).

4. The integrated construction platform for bare rock consolidation grouting of inclined shaft according to claim 1, characterized in that: A walking wheel (10) is provided on one side of the construction platform (2) connected to the walking track (4); the pedestrian ladder (8) is provided on one side of the walking wheel (10); and the upper grouting operation platform (5) and the middle drilling operation platform (6) are both provided with a pedestrian passage (8.1) at the position where the pedestrian ladder (8) passes.

5. The integrated construction platform for bare rock consolidation grouting of inclined shaft according to claim 4, characterized in that: The construction platform (2) is provided with a rail clamp (11) for fixing the construction platform (2) at a predetermined height.

6. The integrated construction platform for bare rock consolidation grouting of inclined shaft according to claim 1, characterized in that: The liftable platform (9) is arranged on the lower drilling operation platform (7) via liftable platform adjustment bolts (9.1).

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