CN214695683U - Raft board precipitation well structure - Google Patents

Abstract

The utility model discloses a raft precipitation well structure, relating to the field of building equipment, and the technical proposal is that the raft precipitation well structure comprises a sleeve, wherein the top end of the sleeve is provided with a top flange, the middle part of the outer part of the sleeve is fixedly provided with a water stop flange plate, the water stop flange plate is fixedly connected with a reinforcing steel bar inside the raft, and the upper side of the water stop flange plate is fixedly provided with an annular water stop ring; a well pipe penetrates through the interior of the casing; the sleeve pipe runs through the raft, and the sleeve pipe bottom extends to raft bottom waterproof layer downside, and the counter bore is seted up to the raft upside, and sheathed tube top is located the counter bore. The utility model has the advantages that: underground works can be solved at the work progress precipitation difficult problem to this structure, guarantees pouring smoothly of raft board concrete, and the sealed respond well of downcomer simultaneously can effectively solve raft board infiltration problem, solves the later stage fortune dimension infiltration difficult problem. The method is suitable for precipitation in the construction process of the open cut station subway raft and the deep buried basement raft and plugging after construction.

Description

Raft board precipitation well structure

Technical Field

The utility model relates to a construction equipment field, in particular to raft precipitation well structure.

Background

In the construction process of the raft in the water-rich stratum, if precipitation is not timely, the construction of a cushion layer and a waterproof layer is difficult to carry out, and the smooth promotion of the construction period is seriously restricted; after concrete is poured on the raft, leakage points often exist at positions where precipitation wells are not tightly plugged, and a large amount of manpower and material resources are required to be invested in the later stage for grouting and plugging, so that cost waste is caused. At present, a plurality of plugging methods for raft precipitation wells exist, and from the viewpoint of convenience of construction and operation, the plugging construction process is complicated, and later-stage maintenance is difficult. Therefore, the raft precipitation well and the plugging method need to be improved and designed again.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a raft precipitation well structure.

The technical scheme is that the water-stop raft comprises a sleeve, wherein a top flange is arranged at the top end of the sleeve, a water-stop flange plate is fixedly arranged in the middle of the outer part of the sleeve, the water-stop flange plate is fixedly connected with reinforcing steel bars in a raft plate, an annular water-stop ring is fixedly arranged on the upper side of the water-stop flange plate, the lower side surface of the water-stop ring is attached to the upper side surface of the water-stop flange plate, and the inner side surface of the water-stop ring is attached to the outer side surface of the sleeve;

a well pipe penetrates through the interior of the casing pipe, the well pipe comprises a filter pipe and a settling pipe, the filter pipe is a pipe body with filter holes in the peripheral wall, and the settling pipe is fixedly connected with the bottom end of the filter pipe;

the sleeve pipe runs through the raft, and the sleeve pipe bottom extends to raft bottom waterproof layer downside, the counter bore is seted up to the raft upside, sheathed tube top is located the counter bore.

Preferably, before the dewatering well is sealed, the upper part of the well pipe extends to the upper side of the raft plate;

when the dewatering well is sealed, the part of the filter pipe above the top flange is cut off; a rubber sealing plate and a cover plate are arranged corresponding to the top flange, and the rubber sealing plate is positioned between the cover plate and the top flange; micro-expansion concrete is filled in the filter tube; the counter bores of the raft plates are filled with waterproof mortar.

Preferably, a plugging plate is sleeved on the outer side of the filter tube, the plugging plate is an annular plate body and is positioned below the bottom end of the sleeve, and the outer diameter of the plugging plate is larger than that of the sleeve;

the upper side of the plugging plate is fixedly provided with a plugging ring, the plugging ring is an annular cylinder made of elastic sealing materials, the inner diameter of the plugging ring is equal to the outer diameter of the filter tube in a natural state, the outer diameter of the plugging ring is equal to the inner diameter of the sleeve, a pull rope is fixedly connected to the plate body of the plugging plate and penetrates through the plugging ring from the inside of the sleeve to the top flange.

Preferably, the fixed end of the pull rope is fixedly connected with a hook, and the hook corresponds to the filter hole of the filter tube.

Preferably, a clamping ring is fixedly arranged on the plugging plate and sleeved outside the plugging ring, the inner diameter of the clamping ring corresponds to the outer diameter of the sleeve, and the height of the clamping ring corresponds to the distance between the bottom end of the sleeve and the bottom waterproof layer.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the plugging of foundation ditch precipitation and tube well is applied to this structure, reaches good precipitation effect and prevention of seepage effect, and the later stage is also convenient for maintain, can solve underground works at the work progress precipitation difficult problem, guarantees pouring smoothly of raft board concrete, and the downcomer is sealed respond well simultaneously, can effectively solve raft board infiltration problem, solves the later stage fortune dimension infiltration difficult problem. The method is suitable for precipitation in the construction process of the open cut station subway raft and the deep buried basement raft and plugging after construction.

Drawings

Fig. 1 is a schematic structural diagram before well shut-in according to an embodiment of the present invention.

Fig. 2 is the structure schematic diagram after the well sealing of the embodiment of the utility model.

Wherein the reference numerals are: 100. a raft plate; 101. a bottom waterproof layer; 102. waterproof mortar; 103. micro-expansive concrete; 1. a sleeve; 11. a top flange; 2. a water stop flange plate; 3. a water stop ring; 4. a well pipe; 5. a filter tube; 6. a settling tube; 7. a rubber sealing plate; 8. a cover plate; 9. a plugging plate; 91. a plugging ring; 92. pulling a rope; 93. a snap ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

Referring to fig. 1 and 2, the utility model provides a raft precipitation well structure, which comprises a sleeve 1, wherein a top flange 11 is arranged at the top end of the sleeve 1, a water stop flange plate 2 is fixedly arranged at the middle part of the outer part of the sleeve 1, the water stop flange plate 2 is fixedly connected with a reinforcing steel bar in the raft, an annular water stop ring 3 is fixedly arranged at the upper side of the water stop flange plate 2, the lower side surface of the water stop ring 3 is attached to the upper side surface of the water stop flange plate 2, and the inner side surface of the water stop ring 3 is attached to the outer side surface of the sleeve 1;

a well pipe 4 penetrates through the interior of the casing 1, the well pipe 4 comprises a filter pipe 5 and a settling pipe 6, the filter pipe 5 is a pipe body with filter holes in the peripheral wall, and the settling pipe 6 is fixedly connected with the bottom end of the filter pipe 5;

the sleeve 1 runs through raft 100, and 1 bottom of sleeve extends to raft 100 bottom waterproof layer 101 downside, the counter bore is seted up to raft 100 upside, the top of sleeve 1 is located the counter bore.

Preferably, before the dewatering well is sealed, the upper part of the well pipe extends to the upper side of the raft plate 100;

when the dewatering well is sealed, the part of the filter pipe 5 positioned above the top flange 11 is cut off; a rubber sealing plate 7 and a cover plate 8 are arranged corresponding to the top flange 11, and the rubber sealing plate 7 is positioned between the cover plate 8 and the top flange 11; micro-expansion concrete is filled in the filter tube 5; the counter bores of the rafts 100 are filled with waterproof mortar 102.

During construction:

1. the dewatering well is positioned and lofted according to measurement, after the dewatering well is drilled, the size of the casing 1 is determined according to the thickness of the raft plate and the embedding depth of the casing 1, and water stop flange plates 2 are fixed on the periphery of the casing 1;

2. after the casing 1 is buried, the well pipe 4 is lowered, the filter pipe 5 is used for preventing sand and soil particles from blocking the well pipe during precipitation, and the settling pipe 6 is used for preventing soil and stone particles from being deposited at the bottom of the well pipe 4 and keeping the bottom of the well pipe 4 smooth;

3. the method comprises the steps of (1) beginning to reduce water, wherein the requirement of reducing water is that after underground water is 50cm far from the bottom of a foundation pit, a raft cushion layer is poured, the construction of a bottom waterproof layer is started, and the bottom waterproof layer 101 is a first waterproof layer;

4. after the bottom waterproof layer 101 is constructed, the raft plate 100 steel bars are bound, and the sleeve 1 is not damaged when the steel bars are bound, so that the perpendicularity of the sleeve 1 is ensured;

5. after the steel bars are bound, a circle of water stop ring 3 is arranged on the water stop flange plate 2 around the sleeve 1 in a surrounding mode, the water stop ring is used for preventing water for the second time, the first water prevention and the second water prevention are both external water prevention, and therefore it is guaranteed that underground water cannot seep out along the outer wall of the well pipe after plugging is completed;

6. pouring the raft 100 concrete, wherein when the concrete is poured, a reserved groove with the depth more than 25cm needs to be reserved around the top of the sleeve 1 to serve as a counter bore, so that an operation space is reserved for later construction of a pipe well;

7. and (3) sealing the well, backfilling micro-expansion concrete in the well pipe 4, ensuring the top end of the sleeve 1 to be sealed by using a rubber sealing plate 7, covering the top end by using a cover plate 8, screwing the bolt, and finally backfilling waterproof mortar in the counter bore to finish construction.

Example 2

On the basis of embodiment 1, preferably, a blocking plate 9 is sleeved outside the filter tube 5, the blocking plate 9 is an annular plate body, the blocking plate 9 is located below the bottom end of the casing 1, and the outer diameter of the blocking plate 9 is larger than that of the casing 1;

the fixed shutoff ring 91 that sets up of upside of shutoff board 9, shutoff ring 91 be the annular barrel that elastic sealing material made, and the internal diameter equals with the external diameter of chimney filter 5 under natural state of shutoff ring 91, and the external diameter equals with the internal diameter of sleeve pipe 1, fixed connection stay cord 92 on the plate body of shutoff board 9, stay cord 92 runs through shutoff ring 91 is by the inside top flange 11 top that extends of sleeve pipe 1.

Preferably, the fixed end of the pull rope 92 is fixedly connected with a hook, and the hook corresponds to the filtering hole of the filtering pipe 5.

When the dewatering well is in front of a shut-in well, the hook is hung on the upper portion of the filter pipe 5, when the well needs to be shut-in, the hook is removed, the pull rope 92 is pulled, the plugging plate 9 is lifted to the bottom end of the casing pipe 1, the plugging ring 91 is enabled to plug the gap portion between the filter pipe 5 and the casing pipe 1, the filter pipe 5 is cut off according to the position of the top flange 11, then the redundant pull rope 92 is cut off or wound on the hook in a proper length mode, the hook is plugged into the casing pipe 5 and hung on the filter holes of the filter pipe 5, then the micro-expansion concrete 103 is poured, and through the structure, the micro-expansion concrete 103 at the leakage position of the bottom end portion of the casing pipe 1 can be plugged.

Preferably, a snap ring 93 is fixedly arranged on the plugging plate 9, the snap ring 93 is sleeved outside the plugging ring 91, the inner diameter of the snap ring 93 corresponds to the outer diameter of the casing 1, and the height of the snap ring 93 corresponds to the distance between the bottom end of the casing 1 and the bottom waterproof layer 101.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (5)

1. A raft precipitation well structure is characterized by comprising a sleeve (1), wherein a top flange (11) is arranged at the top end of the sleeve (1), a water stop flange plate (2) is fixedly arranged at the middle part of the outer part of the sleeve (1), the water stop flange plate (2) is fixedly connected with a reinforcing steel bar inside the raft, an annular water stop ring (3) is fixedly arranged on the upper side of the water stop flange plate (2), the lower side surface of the water stop ring (3) is attached to the upper side surface of the water stop flange plate (2), and the inner side surface of the water stop ring (3) is attached to the outer side surface of the sleeve (1);

a well pipe (4) penetrates through the interior of the casing pipe (1), the well pipe (4) comprises a filter pipe (5) and a settling pipe (6), the filter pipe (5) is a pipe body with filter holes in the peripheral wall, and the settling pipe (6) is fixedly connected with the bottom end of the filter pipe (5);

raft board (100) is run through in sleeve pipe (1), and sleeve pipe (1) bottom extends to raft board (100) bottom waterproof layer (101) downside, the counter bore is seted up to raft board (100) upside, the top of sleeve pipe (1) is located the counter bore.

2. A raft dewatering well structure according to claim 1, wherein, prior to shut-in of the dewatering well, the upper part of the well casing extends above the upper side of the raft (100);

when the dewatering well is sealed, the part of the filter pipe (5) above the top flange (11) is cut off; a rubber sealing plate (7) and a cover plate (8) are arranged corresponding to the top flange (11), and the rubber sealing plate (7) is positioned between the cover plate (8) and the top flange (11); micro-expansion concrete is filled in the filter tube (5); the counter bores of the raft plates (100) are filled with waterproof mortar (102).

3. A raft precipitation well structure according to claim 2, wherein a blocking plate (9) is sleeved outside the filter tubes (5), the blocking plate (9) is an annular plate body, the blocking plate (9) is located below the bottom end of the casing (1), and the outer diameter of the blocking plate (9) is larger than that of the casing (1);

the upper side of shutoff board (9) is fixed sets up shutoff ring (91), and shutoff ring (91) are the annular barrel that elastic sealing material made, fixed connection stay cord (92) on the plate body of shutoff board (9), stay cord (92) run through shutoff ring (91) are by inside extension to top flange (11) top of sleeve pipe (1).

4. The raft precipitation well structure of claim 3, wherein the fixed end of the pulling rope (92) is fixedly connected with a hook, and the hook corresponds to the filtering holes of the filtering pipes (5).

5. A raft precipitation well structure according to claim 3, wherein a snap ring (93) is fixedly arranged on the blocking plate (9), the snap ring (93) is sleeved outside the blocking ring (91), the inner diameter of the snap ring (93) corresponds to the outer diameter of the casing (1), and the height of the snap ring (93) corresponds to the distance between the bottom end of the casing (1) and the bottom waterproof layer (101).

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