CN217053429U

CN217053429U - Device for rapidly and effectively blocking sudden water burst of underground engineering

Info

Publication number: CN217053429U
Application number: CN202122888604.2U
Authority: CN
Inventors: 李克金
Original assignee: China Railway 14th Bureau Group Co Ltd
Current assignee: China Railway 14th Bureau Group Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-07-26
Anticipated expiration: 2031-11-23

Abstract

The utility model provides a device that quick effective shutoff underground works gushed water suddenly, is including the circular cone pressure head, and a plurality of pole settings that the circumference was arranged are installed at the top of circular cone pressure head, the one end of pole setting is installed on the circular cone pressure head, and the ring that the level set up is installed to the other end of pole setting forms the diffusion chamber between circular cone pressure head, pole setting and the ring, a plurality of sector plate is installed to the interior week of ring, leaves the clearance between the adjacent sector plate, and the sector plate can enter into the diffusion intracavity. The device comprises a plurality of bottom conical pressure heads and a plurality of vertical rods arranged on the circumference, wherein the upper ends of the vertical rods are provided with circular rings capable of being communicated with grouting pipes, the device is placed into a hole after drilling is finished, the bottom conical pressure heads can compact the soil layer at the bottom of the hole, the grouting pipes can push the device to the position of a leakage area, concrete compositions can uniformly flow out through gaps between diffusion cavities and the vertical rods, uniform grouting at the position of the leakage area is realized, and therefore the efficiency and the quality of the whole leakage plugging operation are improved.

Description

Device for rapidly and effectively blocking sudden water burst of underground engineering

Technical Field

The utility model belongs to the technical field of the rail traffic engineering technique and specifically relates to a device that effective shutoff underground works suddenly gushed water fast.

Background

Along with the rapid development of underground engineering, the construction conditions of water-rich silt and other strata are more and more, in the current underground engineering, in the construction process and the later operation process, water gushing and sand gushing are easily generated, so that a cavity is formed between an underground engineering enclosure structure or a reinforced concrete structure and the strata, the self support of the engineering is adversely affected, and in severe cases, the ground is collapsed, pipelines and buildings (structures) are fractured and sunk, and serious casualties and property loss are caused.

In order to solve the above problems, a conventional method is to pump a dewatering well on the outer side to drain water, or to perform grouting reinforcement on the ground in a hole, and the grouting pipe needs to be extended into the position of the leakage area after drilling is completed.

Disclosure of Invention

An object of the utility model is to provide a device that effective shutoff underground works suddenly gushed water fast, it is downthehole to put into with the device after drilling finishes earlier, and the circular cone pressure head of bottom enables the soil layer compaction at the bottom of the hole, and the slip casting pipe can be with diffusion chamber looks UNICOM, and concrete composition can realize even slip casting in the infiltration district position, has solved the problem among the prior art.

The utility model provides a technical scheme that its technical problem adopted is: a device that quick effective shutoff underground works gushed water suddenly, including the circular cone pressure head, a plurality of pole settings that the circumference was arranged are installed at the top of circular cone pressure head, the one end of pole setting is installed on the circular cone pressure head, and the ring that the level set up is installed to the other end of pole setting, forms the diffusion chamber between circular cone pressure head, pole setting and the ring, a plurality of sector plate is installed to the interior week of ring, leaves the clearance between the adjacent sector plate, and the sector plate can enter into the diffusion intracavity. The ring is provided with an annular convex edge, the width of the annular convex edge is smaller than that of the ring, and the inner periphery of the annular convex edge is provided with a plurality of sector plates which are circumferentially arranged. The upright stanchion is made of round steel, and the diameter of the round steel is 16-28 mm. The distance between adjacent upright stanchions is 3-10 cm.

The utility model has the advantages of: a device that quick effective shutoff underground works gushed water suddenly, a plurality of pole settings including bottom circular cone pressure head and circumference are arranged, the pole setting upper end sets up the ring that can and slip casting pipe looks UNICOM, it is downthehole earlier to put into the device after drilling finishes, the circular cone pressure head of bottom enables the soil layer compaction at the bottom of the hole, and the slip casting pipe can promote the device to the seepage district position, the concrete composition can evenly flow via the space between diffusion chamber and pole setting, realizes the even slip casting at the seepage district position to improve the efficiency and the quality of whole seepage shutoff operation.

Drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view of a structure of a ring with a raised edge;

FIG. 5 is a schematic illustration of drilling;

fig. 6 is a schematic diagram of grouting after a rapid and effective water inrush blocking device for underground engineering is placed in a hole.

Detailed Description

A quick effective shutoff underground works gushes device of water suddenly, as shown in fig. 1 and fig. 2, including circular cone pressure head 1, a plurality of pole settings 2 that the circumference was arranged are installed at circular cone pressure head 1's top, the one end of pole setting 2 is installed on circular cone pressure head 1, and the ring 3 that the level set up is installed to the other end of pole setting 2, as shown in fig. 3, forms diffusion chamber 5 between circular cone pressure head 1, pole setting 2 and the ring 3, a plurality of sector plate 4 is installed to the interior week of ring 3, leaves the clearance between the adjacent sector plate 4, and sector plate 4 can enter into in the diffusion chamber 5.

The slip casting pipe can be through ring 3 and diffusion chamber 5 looks UNICOM, concrete composition in the diffusion chamber 5 can evenly flow out through the clearance between the pole setting 2, after confirming the infiltration district position, drill as shown in figure 5, make the drilling depth be less than the soil body collapse area about 1 meter, take the drilling rod out after the drilling finishes, and in throwing into the drilling hole with the device that quick effective shutoff underground works gushes water suddenly, under the dead weight effect, the device finally falls to the drilling bottom, and the soil layer compaction that drops in the drilling, after placing, the setting of fan-shaped board 4 in the ring 3 can prevent effectively that big granule soil stone from entering into the diffusion chamber 5 in, in order to guarantee the normal clear of follow-up slip casting. And then the grouting pipe extends into the drill hole to be butted with the circular ring 3, a sand bag is accumulated on one side inside the foundation pit of the enclosure structure before grouting, the accumulated sand bag can play a role in back pressure, the enclosure structure is prevented from bulging inwards, and adverse effects are generated. The position of the grouting pipe is adjusted to enable the upright rod 2 on the device for quickly and effectively blocking the water inrush of the underground engineering to be positioned at the position of the leakage area, so that the concrete composition in the grouting pipe can uniformly enter the leakage subsidence area to complete the leakage blocking operation. And the device is used as a disposable tool and is remained in the drill hole together with the concrete composition after being condensed to realize the function of leaking stoppage.

The arrangement of the fan-shaped plates 4 facilitates the matching of the pointed grouting pipes, so that the grouting pipes push the fan-shaped plates 4 open and enter the diffusion cavity 5, furthermore, in order to facilitate the matching use of the stepped grouting pipes with the device, the annular convex edge 6 is arranged on the ring 3, the width of the annular convex edge 6 is smaller than that of the ring 3, a plurality of fan-shaped plates 4 arranged circumferentially are arranged on the inner circumference of the annular convex edge 6, when the stepped grouting pipes extend into the annular convex edge 6, the limiting can be formed, the fan-shaped plates 4 can be pushed to bend downwards by a certain angle, and the concrete composition in the grouting pipes can conveniently enter the diffusion cavity 5.

Furthermore, in order to facilitate the manufacturing and ensure the integral strength of the device, the upright rod 2 is made of round steel, and the diameter of the round steel is 16-28 mm.

Further, in order to facilitate a uniform outflow of the concrete composition in the diffusion chamber 5, the distance between adjacent uprights 2 is 3-10cm, wherein the distance between the uprights 2 can be selected according to the maximum particle size of the concrete composition to ensure a smooth outflow of the concrete composition.

The dewatering well among the prior art or carry out the slip casting and consolidate, have following shortcoming: the precipitation method is adopted, and the water level is difficult to be reduced to a preset height in a short time because the water-stop curtain is not arranged in the precipitation range, so that the precipitation influence range is large. The grouting process is adopted, holes need to be drilled to preset positions, then muddy water glass double-liquid slurry or cement slurry or the like is injected, only part of the slurry can be diffused to the hole points of gushing water and gushing sand due to the fact that the grouting is diffused all around, and if the cement slurry or the setting time is regulated badly, the slurry is easily carried out by the gushing water and the gushing sand, so that the silting and plugging effect on the holes is not formed, and the long-time water leakage, sand leakage and plugging cannot be caused. The two processes of precipitation and grouting are mutually influenced, so that the condition that the precipitation well pipe is blocked or slurry is pumped out by the precipitation well is caused by grouting, the emergency treatment efficiency is influenced, and if the emergency treatment cannot be carried out in time, major safety accidents are easily caused.

The device of quick effective shutoff underground works gushing water suddenly can use in following construction method that shutoff underground works gushed water suddenly:

the method comprises the steps of firstly, drilling a hole at a ground position corresponding to the water inrush of the underground engineering by using a drilling machine, wherein the diameter of the drilled hole can be adjusted according to the diameter of a pumping pipe, the diameter of the drilled hole is generally more than 30cm, forming the hole by using a rotary drilling machine (or a geological drilling machine) according to ground conditions, detecting the size of a stratum cavity caused by water inrush and sand inrush in the drilling process, detecting the plane size of the cavity by using quincunx hole distribution to estimate the square amount of a concrete composition to be filled at the later stage, and if the hole collapses in the hole forming process, using a mud protective wall (or a bentonite mud protective wall), ensuring the drilling precision and the verticality in the drilling process, enabling the drilled hole to be close to the water inrush point or the formed cavity range as much as possible, wherein the drilling depth can generally exceed the water inrush point elevation by about 1 meter.

Put earlier after the drilling is accomplished device that effective shutoff underground works suddenly gushed water fast, then in time transfer the concrete pump pipe, the pump pipe depth of insertion can calculate transfer suddenly gush the water point degree of depth can, the fixed pump pipe of support is installed on ground, connects the concrete pump, fixed pipeline prevents that pump sending concrete composition in-process from taking place the pump pipe crooked, throw off the circumstances such as. The water inrush point of the underground engineering can be backfilled and back-pressed by sand bags, earthwork and the like, a steel pipe is inserted for diversion if necessary, and the backfilled soil is closed by hanging a reinforcing mesh and spraying concrete (or a closed steel plate) to form back pressure on the water inrush point as much as possible.

After the back pressure of the water inrush point is finished, compositions such as concrete and the like can be pumped on the ground, the characteristics of high pressure, large flow and quick setting of the pumped concrete composition are utilized, the concrete composition can be quickly filled into a cavity caused by water inrush and sand inrush, the concrete composition can press to the periphery to block a water seepage channel while the cavity is filled, and can press to the water inrush point, and the water inrush point is blocked by the silting effect caused by the characteristics of quick setting, large flow and high pressure of the concrete composition.

The concrete composition can be a composition of materials such as concrete (the mark number can be C30 and the like), an accelerating agent, an early strength agent, dry kelp and the like, or other concrete grout with the same function, the mixing proportion can be adjusted according to specific conditions, wherein the dry kelp can play a role in quickly absorbing water and expanding, the light dry kelp is preferably used, and other chemical materials with the function of quickly absorbing water and expanding can also be adopted for replacing. The concrete composition is used for many times in the first-line and second-line emergency rescue and water plugging process of the subway in the south of China, and the concrete composition and the construction method thereof have the characteristics of safety, rapidness, high efficiency, strong durability, low cost, easiness in equipment material organization and the like for plugging the sudden gushing water of the underground engineering, and can prevent and treat serious casualties and property loss accidents such as damage to the self structure of the engineering, and even possible ground collapse, pipeline and building (structure) fracture and subsidence caused by the sudden gushing water of the underground engineering.

Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.

Claims

1. The utility model provides a device that quick effective shutoff underground works gushed water suddenly which characterized in that: including circular cone pressure head (1), a plurality of pole settings (2) that the circumference was arranged are installed to the top of circular cone pressure head (1), install on circular cone pressure head (1) the one end of pole setting (2), and ring (3) that the level set up are installed to the other end of pole setting (2), form diffusion chamber (5) between circular cone pressure head (1), pole setting (2) and ring (3), a plurality of sector plate (4) are installed to the interior week of ring (3), leave the clearance between adjacent sector plate (4), and sector plate (4) can enter into in diffusion chamber (5).

2. The device for rapidly and effectively blocking sudden water burst of underground engineering according to claim 1, is characterized in that: the ring (3) is provided with an annular convex edge (6), the width of the annular convex edge (6) is smaller than that of the ring (3), and the inner periphery of the annular convex edge (6) is provided with a plurality of sector plates (4) which are circumferentially arranged.

3. The device for rapidly and effectively blocking sudden water burst of underground engineering according to claim 1, is characterized in that: the upright rod (2) is made of round steel, and the diameter of the round steel is 16-28 mm.

4. The device for rapidly and effectively blocking sudden water burst of underground engineering according to claim 1, is characterized in that: the distance between the adjacent upright stanchions (2) is 3-10 cm.