CN215925943U - Precast pile prevention of seepage stagnant water structure - Google Patents

Abstract

The utility model discloses a precast pile seepage-proofing and water-stopping structure, which relates to the technical field of soil retaining and building enclosure seepage-proofing and water stopping, wherein grooves are formed in splicing surfaces of two sides of a sheet pile, connecting pieces are arranged in the grooves, and each connecting piece comprises a U-shaped piece, a steel plate or/and a sleeve; the U-shaped part is arranged on the steel plate or/and the sleeve; the grooves on the splicing surfaces of the adjacent sheet piles form water stopping grooves; the two U-shaped pieces are oppositely arranged in the water stopping groove. The seepage-proofing and water-stopping structure is simple in structure, convenient to combine and connect, strong in structural stability and good in seepage-proofing and water-stopping effect.

Description

Precast pile prevention of seepage stagnant water structure

Technical Field

The utility model relates to the technical field of seepage-proofing and water-stopping of soil-retaining and building-enclosing structures, in particular to a precast pile seepage-proofing and water-stopping structure.

Background

The construction method is characterized in that a large number of vertical supporting structures are arranged in the engineering construction fields of river bank protection, slope treatment, foundation pit engineering and the like, the commonly adopted structural forms comprise pile arrangement type structures, gravity type structures and the like, the pile arrangement structures can adopt the forms of sheet piles, cast-in-situ piles, underground continuous walls and the like, wherein after the cast-in-situ piles and the underground continuous walls are formed into holes or grooves, steel reinforcement cages are hung and placed, the supporting walls are formed by pouring concrete by a conduit method, the construction period is long, the construction cost is high, slurry retaining walls are needed in the hole forming or groove forming process, and the environmental pollution is large. Meanwhile, the cast-in-situ bored piles are generally arranged at intervals, and cement soil stirring piles or high-pressure jet grouting piles are required to be adopted for seepage prevention and water stop among the piles, so that the construction is troublesome; due to the influence of a construction method and geological conditions, adjacent groove sections are easy to be uneven, and leakage is caused.

Therefore, in recent years, a large number of precast piles are used in a retaining structure, including precast sheet piles, precast tubular piles and the like, the precast sheet piles are generally arranged in a dense manner, the connection of adjacent piles is realized by using tongue-and-groove joints or grouting grooves arranged on right-angle sides at two sides, and the form of inserting the precast sheet piles into a cement soil mixing pile or a cement soil mixing pile wall is adopted in foundation pit engineering to combine the retaining pile with a water stop structure.

The prior art has the following problems:

the first problem is that: when the precast pile is constructed by adopting a driving method, the pile spacing is difficult to reach an ideal state due to the influence of control factors such as positioning, verticality and the like, adjacent piles are difficult to avoid gaps or dislocation, and when tongue-and-groove connection is adopted, the anti-seepage water-stop effect cannot be achieved; the grouting groove is adopted, the effect is good during dry construction, and the grouting quality is not easy to control during operation with water.

The second problem is that: by adopting the cement mixing pile or the cement mixing pile wall, the water stopping effect is mainly controlled by the quality of the cement mixing body, and the cement mixing body is often affected by the operation level of workers and geological conditions to cause quality problems and water seepage.

The third problem is that: patent number ZL 201710115406.8's chinese utility model patent "a construction of reinforced concrete wave form sheet pile underground structure" discloses one kind and has connected at the pre-buried male and female joint in wave form sheet pile body edge of a wing, and the male joint of T font promptly and the circular female joint of area breach insert this wave form sheet pile through excavating the continuous underground groove, pours into the concrete behind the male and female joint and forms waterproof construction, but its production preparation that exposes T font and connect and has brought great difficulty for the wave form sheet pile, has reduced production efficiency.

The fourth problem is that: patent number ZL 201810101189.1's chinese utility model patent "concrete pile and adopt continuous prevention of seepage stagnant water wall of this concrete pile concatenation" discloses a rectangle stake at the pre-buried circular pipe fitting of concatenation face, the pre-buried pipe of one side exposes the concatenation face outward, the pre-buried pipe indent of opposite side, insert I-shaped sheetmetal or rigid plastic plate at the concatenation face behind the pile sinking, the sheetmetal lower part takes the blade, can directly puncture the pipe fitting, form the connection of concatenation face, and pour into the concrete in the pipe and form stagnant water structure, the concatenation face of its unsmooth tenon simultaneously, adaptable part pile sinking deviation. However, the plastic pipe is easily deformed when the plastic pipe is pre-embedded by high-pressure steam curing, and the pipe fitting is pierced by the I-shaped inserting plate with certain difficulty.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides an anti-seepage and water-stopping structure for a precast pile, which has the advantages of simple structure, convenience in combination and connection, strong structural stability and good anti-seepage and water-stopping effects.

The present invention achieves the above-described object by the following technical means.

A prefabricated pile seepage-proofing and water-stopping structure is characterized in that grooves are formed in splicing surfaces of two sides of a sheet pile, connecting pieces are arranged in the grooves, and each connecting piece comprises a U-shaped piece, a steel plate or/and a sleeve; the U-shaped part is arranged on the steel plate or/and the sleeve; the grooves on the splicing surfaces of the adjacent sheet piles form water stopping grooves; the two U-shaped pieces are oppositely arranged in the water stopping groove.

Furthermore, the splicing surfaces of the adjacent sheet piles are arranged just opposite to each other or are arranged in a staggered manner.

Furthermore, a certain gap or no gap exists between the splicing surfaces of the adjacent sheet piles.

Further, the relative arrangement of the two U-shaped pieces comprises positive relative arrangement or staggered relative arrangement.

Further, the connecting piece comprises a steel plate, a sleeve and a U-shaped piece; the steel sheet is pre-buried in the recess, sleeve and U type spare setting are on the steel sheet.

Further, the sleeve is pre-embedded in the groove, one end of the sleeve is welded on the steel plate, and the U-shaped piece is connected to the steel plate through a bolt; the bolt penetrates through the steel plate and is in threaded connection with the sleeve.

Further, the connecting piece comprises an embedded sleeve and a U-shaped piece; the sleeve is pre-buried in the recess, U type spare and sleeve threaded connection or the welding of U type spare is on the sleeve.

Further, the connecting piece comprises a steel plate and a U-shaped piece; the steel plate is pre-buried in the recess, and U type spare sets up on the steel plate.

Furthermore, the steel plates are fixed by welding through cage ribs.

Further, the U-shaped piece is welded on the steel plate.

Furthermore, a water stop sheet is arranged between the U-shaped pieces and used for connecting the U-shaped pieces.

Further, the water stop sheet is an I-shaped water stop sheet or a straight-line-shaped water stop sheet.

Furthermore, the height of the I-shaped water stop sheet is less than two times of the depth of the groove, 15-25 mm, and the width of the I-shaped water stop sheet is less than 10-20 mm of the inner width of the U-shaped piece.

Furthermore, the water stop strip is a red copper strip or a steel plate water stop or a rubber water stop.

Further, the groove is of a trapezoidal structure.

Furthermore, the height of the U-shaped part is less than the depth of the groove by 5-10 mm.

Further, the sheet piles are inserted into a wall or driven into a foundation.

Further, the sheet pile is of a rectangular structure or a square structure.

Furthermore, filling materials are filled into the water stopping groove.

Furthermore, the filling material is micro-expansion or elastic cement mortar or micro-expansion fine stone concrete.

Has the advantages that:

1. according to the precast pile seepage-proofing and water-stopping structure, the grooves are formed in the splicing surfaces on the two sides of the sheet pile, the connecting pieces are preset in the grooves, the water-stopping grooves are formed by the grooves on the splicing surfaces of the adjacent sheet piles, and the seepage-proofing and water-stopping effects can be realized by filling the filler into the water-stopping grooves.

2. In the utility model, the splicing surfaces of the sheet piles can be arranged in a right-facing way or in a staggered way, and various arrangement modes can adapt to partial pile sinking deviation or the deviation of the foundation in the transverse or longitudinal dimension.

3. In the utility model, a certain gap or no gap exists between the splicing surfaces of the adjacent sheet piles, thereby realizing the possibility of longitudinally connecting the sheet piles in a staggered manner and improving the practicability and application places of sheet pile connection.

4. In the utility model, the connecting piece comprises a U-shaped piece, a steel plate or/and a sleeve, can realize various combination modes, and can select different combination modes according to specific occasions, such as selecting the U-shaped piece, the steel plate and the sleeve; u-shaped parts and steel plates; a U-shaped member and a sleeve.

5. In the utility model, the U-shaped parts have various layout modes, the U-shaped parts which are oppositely arranged can be oppositely arranged or staggered and oppositely arranged according to the actual situation, and different arrangement modes are used for the actual situation of the applicable working occasion.

6. In the utility model, the water stop sheets are arranged between the oppositely arranged U-shaped pieces and are used for connecting the U-shaped pieces, so that the stability between the connecting pieces can be improved, and meanwhile, the strength of the water stop structure after grouting is improved.

7. In the utility model, the structure of the water stop sheet is an I-shaped water stop sheet or a straight-line-shaped water stop sheet, so that the U-shaped member can be conveniently connected, and meanwhile, the stability and the strength of connection are improved.

8. In the utility model, the sheet pile can be inserted into a wall body or sunk into a foundation, and the sheet pile has various shapes, thereby expanding the application occasions of the sheet pile.

9. The water stopping groove is filled with filler which is micro-expansion or elastic cement mortar or micro-expansion fine stone concrete, so that the strength of the water stopping structure and the stability of the structure are improved.

Drawings

Fig. 1 is a schematic view of a precast pile impermeable water stopping structure inserted into a wall according to embodiment 1 of the present invention;

fig. 2 is a schematic view of a precast pile impermeable water stopping structure driven into a foundation according to embodiment 1 of the present invention;

fig. 3 is a schematic view of a precast pile impermeable water stopping structure inserted into a wall according to embodiment 2 of the present invention;

fig. 4 is a schematic view of a precast pile impermeable water stopping structure driven into a foundation according to embodiment 2 of the present invention;

fig. 5 is a schematic view of a precast pile impermeable water stopping structure inserted into a wall according to embodiment 3 of the present invention;

fig. 6 is a schematic view of a precast pile impermeable water stopping structure driven into a foundation according to embodiment 3 of the present invention;

fig. 7 is a schematic view of a precast pile seepage-proofing and water-stopping structure in a longitudinal direction in a staggered connection manner according to the utility model;

fig. 8 is a schematic view of a precast pile seepage-proofing and water-stopping structure in a transverse direction in staggered connection according to the present invention;

fig. 9 is a schematic view of the precast pile seepage-proofing and water-stopping structure related to the present invention, which is connected in a staggered manner in the longitudinal and transverse directions.

Reference numerals:

1-sheet piling; 2, a wall body; 3-hooping; 11-a groove; 12-a steel plate; 13-a sleeve; 14-a U-shaped piece; 15-water stop sheet; 16-bolt.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or components must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A precast pile seepage-proofing and water-stopping structure is characterized in that grooves 11 are formed in splicing surfaces of two sides of a sheet pile 1, connecting pieces are arranged in the grooves 11, and each connecting piece comprises a U-shaped piece 14, a steel plate 12 or/and a sleeve 13; the U-shaped part 14 is arranged on the steel plate 12 or/and the sleeve 13; the water stopping grooves are formed by the grooves 11 on the splicing surfaces of the adjacent sheet piles 1; the two U-shaped pieces 14 are oppositely arranged in the water stopping groove.

The splicing surfaces of the adjacent sheet piles 1 are arranged oppositely or in a staggered mode, and multiple arrangement modes are used for adapting to partial pile sinking deviation or adapting to deviation of the foundation in the transverse or longitudinal dimension.

Wherein, there is certain clearance or zero clearance between the adjacent sheet pile 1 concatenation face to realized the sheet pile in the possibility of vertical dislocation connection, improved the practicality and the application place that the sheet pile is connected.

Wherein, the relative arrangement of the two U-shaped pieces 14 comprises positive relative arrangement or staggered relative arrangement. Therefore, the possibility of connecting the sheet piles in a transverse or longitudinal staggered manner is realized, and the practicability and the application place of sheet pile connection are improved.

Wherein the connecting piece comprises a steel plate 12, a sleeve 13 and a U-shaped member 14; the steel plate 12 is embedded in the groove 11, the sleeve 13 and the U-shaped piece 14 are arranged on the steel plate 12, and the connecting piece is diversified in structural combination mode, so that different combination modes can be selected according to specific occasions.

The sleeve 13 is pre-embedded in the groove 11, one end of the sleeve 13 is welded on the steel plate 12, and the U-shaped part 14 is connected on the steel plate 12 through a bolt 16; the bolt 16 is threaded through the steel plate 12 and into the sleeve 13.

The connecting piece comprises an embedded sleeve 13 and a U-shaped piece 14; the sleeve 13 is pre-embedded in the groove 11, and the U-shaped part 14 is in threaded connection with the sleeve 13 or the U-shaped part 14 is welded on the sleeve 13.

Wherein the connecting piece comprises a steel plate 12 and a U-shaped member 14; the steel plate 12 is pre-buried in the groove 11, and the U-shaped piece 14 is arranged on the steel plate 12.

Wherein, the steel plate 12 is fixed by cage bars. The steel sheet passes through cage muscle welded fastening can improve the joint strength of steel sheet and sheet pile to improve the intensity of filling back stagnant water structure.

Wherein the U-shaped element 14 is welded to the steel plate 12.

Wherein, a water stop sheet 15 is arranged between the U-shaped members 14, and the water stop sheet 15 is used for connecting the U-shaped members 14. Stability between the connecting piece can be improved through setting up the waterstop piece, simultaneously, has improved the intensity of stagnant water structure behind the grout.

Wherein, the water stop sheet 15 is an I-shaped water stop sheet or a straight-line shaped water stop sheet.

The height of the I-shaped water stop sheet is smaller than two times of the depth of the groove 11 and is 15-25 mm, and the width of the I-shaped water stop sheet is smaller than the width of the U-shaped piece 14 and is 10-20 mm. The structure of the water stop sheet is suitable for the structure of connecting the U-shaped parts, and the connecting strength is improved.

The water stop sheet is a red copper sheet or a steel plate water stop belt or a rubber water stop belt.

The groove 11 is of a trapezoidal structure, the trapezoidal structure facilitates grooving, and the obtained water stopping groove is stable in structure.

Wherein, the height of the U-shaped piece 14 is less than the depth of the groove 11 by 5-10 mm.

Wherein the sheet pile 1 is inserted into a wall or sunk into a foundation.

The sheet pile 1 is of a rectangular structure or a square structure.

Wherein, the water stopping groove is filled with filling materials.

Wherein the filling material is micro-expansion or elastic cement mortar or micro-expansion fine stone concrete.

Example 1: prefabricating a sheet pile 1 (rectangular, square or special), wherein the method comprises centrifugal process production and pouring production, trapezoidal grooves (which can be arranged in a full length manner or in a corresponding length manner according to the requirement of water stopping) or grooves in other shapes are arranged on splicing surfaces on two sides of the sheet pile 1, and the bottom surface of each groove is matched with a U-shaped part; pre-buried steel sheet (continuous length or a bolt correspond a steel sheet) and internal thread sleeve in recess 11, internal thread sleeve weld on pre-buried steel sheet, and the bolt hole is opened at the steel sheet in corresponding position, and pre-buried steel sheet is through being fixed in with cage muscle welded fastening, and before the sheet pile is executed and is beaten, on being fixed in pre-buried steel sheet with bolt with U type spare (metal).

The use method I comprises the following steps: inserting the precast pile into the canal type cut cement soil continuous wall body 2, forming a water stop groove on the splicing surface of the adjacent precast piles, washing the hole of the water stop groove by using high-pressure water (or directly pressing an I-shaped water stop sheet into the hole without washing the hole), aligning a U-shaped member and then inserting the water stop sheet, wherein the water stop sheet is a red copper sheet, a steel plate water stop belt, a rubber water stop belt and the like, the water stop sheet can be I-shaped, in-line-shaped and the like, filling materials are poured into the hole, and the filling materials are micro-expansion, elastic cement mortar or micro-expansion fine stone concrete to form a water stop structure;

the second usage: the precast sheet pile is driven into the foundation, and the filling material is filled after the groove is washed by high-pressure water to form a water stopping structure.

Example 2: prefabricated rectangle or square sheet pile, including centrifugal technology production and pouring production, sheet pile both sides concatenation face sets up trapezoidal recess (can lead to long setting, also can set up corresponding length according to the stagnant water requirement), pre-buried internal thread bolt sleeve in the recess (during the production preparation, bolt sleeve passes through the bolt fastening in mould, prevents centrifugal off normal), is fixed in the recess through the bolt with U type groove (metal) before the sheet pile is executed and is beaten.

The two methods of use are the same as those in example 1.

Example 3: precast sheet pile (rectangle, square or dysmorphism), including centrifugal process production and pouring production, sheet pile both sides concatenation face sets up trapezoidal recess (can lead to long setting, also can set up corresponding length according to the stagnant water requirement), pre-buried steel sheet 12 in the recess, steel sheet 12 is through welding with stirrup 3 fixed, welds U type groove (metal) on pre-buried steel sheet before the sheet pile is executed and is beaten.

The beneficial effects are that: the U-shaped piece is connected with the embedded internal thread sleeve through the bolt, so that the production and manufacturing difficulty is not increased.

Beneficial effects 2: the I-shaped or straight-line shaped water stop sheet is inserted into the U-shaped piece, and the filler is filled into the U-shaped piece, so that the water stop effect can be achieved.

Beneficial effect 3: u-shaped groove height is less than precast pile concatenation face trapezoidal groove depth 5 ~ 10mm, and I-shaped stagnant water piece height is less than twice groove depth 15 ~ 25mm, and the width is less than U-shaped inslot width 10mm ~ 20mm, when can guaranteeing that precast sheet pile sinking in-process takes place the error, in the stagnant water piece can insert the U-shaped piece smoothly, forms stagnant water structure, improves the fault-tolerant rate.

Beneficial effect 4: the method can be used in temporary projects such as foundation pits and the like, and can also be used for permanent supporting structures.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims (13)

1. A precast pile seepage-proofing and water-stopping structure is characterized in that grooves (11) are formed in splicing surfaces on two sides of a sheet pile (1), connecting pieces are arranged in the grooves (11), and each connecting piece comprises a U-shaped piece (14), a steel plate (12) or/and a sleeve (13); the U-shaped part (14) is arranged on the steel plate (12) or/and the sleeve (13); the water stopping grooves are formed by the grooves (11) on the splicing surfaces of the adjacent sheet piles (1); the two U-shaped pieces (14) are oppositely arranged in the water stopping groove.

2. An anti-seepage water stop structure of a precast pile as claimed in claim 1, wherein the splicing surfaces of the adjacent sheet piles (1) are arranged oppositely or in a staggered way.

3. A precast pile watertight seal structure according to any one of claims 1 to 2, wherein the relative arrangement of the two U-shaped members (14) includes a positive relative arrangement or a staggered relative arrangement.

4. A precast pile watertight seepage prevention structure according to claim 1, wherein the connection member comprises a steel plate (12), a sleeve (13) and a U-shaped member (14); the steel plate (12) and the sleeve (13) are both pre-embedded in the groove (11), one end of the sleeve (11) is welded on the steel plate (12), and the U-shaped part (14) is connected to the steel plate (12) through a bolt (16); the bolt (16) penetrates through the steel plate (12) and is in threaded connection with the sleeve (13).

5. A precast pile impermeable water stopping structure according to claim 1, characterized in that the connecting piece comprises a pre-buried sleeve (13) and a U-shaped member (14); the sleeve (13) is embedded in the groove (11), and the U-shaped piece (14) is in threaded connection with the sleeve (13) or the U-shaped piece (14) is welded on the sleeve (13).

6. A precast pile watertight seepage prevention structure according to claim 1, wherein the connection member comprises a steel plate (12) and a U-shaped member (14); the steel plate (12) is embedded in the groove (11), and the steel plate (12) is welded and fixed through cage ribs; the U-shaped part (14) is welded to the steel plate (12).

7. A precast pile impermeable water stopping structure according to claim 1, characterized in that a water stopping sheet (15) is arranged between the U-shaped members (14), and the water stopping sheet (15) is inserted into the two U-shaped members (14) which are oppositely arranged.

8. An impermeable water-stopping structure for precast piles as recited in claim 7, wherein the water-stopping sheet (15) is an i-shaped water-stopping sheet or a straight water-stopping sheet.

9. An impermeable water-stopping structure for precast piles as recited in claim 8, wherein the height of the I-shaped water-stopping sheet is less than 15-25 mm of the depth of the double groove (11), and the width of the I-shaped water-stopping sheet is less than 10-20 mm of the inner width of the U-shaped member (14).

10. The precast pile impermeable water stopping structure according to claim 8, wherein the water stopping sheet is a red copper sheet or a steel sheet water stopping belt or a rubber water stopping belt.

11. A precast pile impermeable water structure according to claim 1, characterized in that the height of the U-shaped part (14) is 5-10 mm less than the depth of the groove (11).

12. An anti-seepage water stop structure for precast piles as claimed in claim 1, wherein the water stop grooves are filled with filler.

13. An anti-seepage water stop structure of a precast pile as recited in claim 12, wherein the filler is micro-expansion or elastic cement mortar or micro-expansion fine stone concrete.

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