CN107794933B - Hermetic seal structure and its construction method are encircled and hunted down in a kind of underwater construction - Google Patents

Hermetic seal structure and its construction method are encircled and hunted down in a kind of underwater construction Download PDF

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Publication number
CN107794933B
CN107794933B CN201711100542.6A CN201711100542A CN107794933B CN 107794933 B CN107794933 B CN 107794933B CN 201711100542 A CN201711100542 A CN 201711100542A CN 107794933 B CN107794933 B CN 107794933B
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CN
China
Prior art keywords
steel sheet
sheet pile
connecting plate
hook connecting
seal chamber
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CN201711100542.6A
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CN107794933A (en
Inventor
周登楷
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Chidong Construction Group Co., Ltd.
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周登楷
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/02Restraining of open water
    • E02D19/04Restraining of open water by coffer-dams, e.g. made of sheet piles

Abstract

Hermetic seal structure and its construction method are encircled and hunted down in a kind of underwater construction, including steel plate pile body (1), it is characterized by: the side of the steel plate pile body (1) is fixedly installed the first hook connecting plate (2), the other side of steel plate pile body (1) is fixedly installed the second hook connecting plate (3), first hook connecting plate (2) connect cooperation with the second hook connecting plate (3) on adjacent steel sheet pile ontology (1), two arcwall faces (7) after connection cooperation together constitute cylindrical seal chamber (6), cylindrical seal chamber (6) interior extrusion packing has leakage proof mud, or indentation has the operating stick (12) for being enclosed with leakage proof mud in cylindrical seal chamber (6), present invention employs cylindrical seal chambers as sealed body structure, the compactness connected between adjacent steel sheet pile is improved, it is whole after encircling and hunting down Property stability it is good, effectively blocked infiltration path, realized tight reliable hermetic seal.

Description

Hermetic seal structure and its construction method are encircled and hunted down in a kind of underwater construction
Technical field
Encircle and hunt down hermetic seal structure and its construction method the present invention relates to one kind more particularly to a kind of underwater construction encircle and hunt down it is close Sealing water-bound and its construction method, belong to technical field of building construction.
Background technique
Currently, construction is typically necessary setting cofferdam under water, cofferdam is provisional building enclosure, cofferdam set after again Water pump drainage inside cofferdam is clean, then carry out associated construction operation.There are many kinds of the forms in cofferdam, there is a cubic meter cofferdam, pipe Stanchion cofferdam, steel sheet-pile cofferdam etc..It encircles and hunts down construction and is widely used in bridge pier construction construction, bridge pier maintenance construction, submerged structure The dell base of foundation construction and rich groundwater construction etc. using hollow tube pile or steel sheet pile setting cofferdam there is construction to account for Ground is small, easy construction, encircles and hunts down the advantages of equipment can reuse.Using tubing string pile cofferdam or steel sheet-pile cofferdam generally using pipe Stanchion or steel sheet pile fit closely the mode driven piles side by side one by one, and underwater construction needs to bear biggish external water pressure, tubing string Seam between stake or steel sheet pile is it is easy to appear infiltration and the case where leak.Existing hollow tube pile or steel plate pilework are simply thick It is rough, it encircles and hunts down and lacks effective connection between adjacent hollow tube pile or steel sheet pile and fasten, letter is generally bonded or be arranged using outer wall The structure type of single coincidence seam allowance, hermetic seal between hollow tube pile or steel sheet pile all existing technical problem all the time. Although the hermetic seal between existing hollow tube pile or steel sheet pile has using rubber strip hermetic seal, air bag hermetic seal, plug The various ways such as hermetic seal are stitched, but are extremely difficult to most preferably block water-stagnating effect, under the extruding and impact of extraneous hydraulic pressure, compared with Cofferdam begins to seep water after short time, seriously affects the construction operation in cofferdam, and hermetic seal problem never obtains effectively It solves.
Such as China Patent Publication No.: CN 104213570B, publication date: the patent of invention on the 10th of August in 2016 discloses one The construction method in the underwater closing cofferdam of kind comprising following steps: Xiang Shuizhong hangs in the coaming plate of segment type, and each coaming plate is sunk down into Underwater structure outer fix, coaming plate are successively connect with underwater structure lateral surface with water seal, and coaming plate is stacked simultaneously along short transverse Mutual water seal connection, the aqueous inside underwater structure is extracted out, makes to form negative pressure inside underwater structure, and coaming plate is in negative pressure It is tightly attached to the outer surface of underwater structure under effect.But the surrounding plate device structure is simple, lacking between adjacent coaming plate has The connection of effect and fastening, globality is poor, and the hermetic seal of the connecting sewing between adjacent coaming plate is ineffective, to coaming plate outside The hermetic seal ability of the water and underground water that enclose is weaker, it is easy to which the case where seeping water is unfavorable for construction operation.
Summary of the invention
The first purpose of this invention be for existing steel plate pilework it is simple, what is connected between adjacent steel sheet pile is close Property is bad, encircles and hunts down that rear overall stability is poor, and the hermetic seal between adjacent steel sheet pile is ineffective, between steel sheet pile Gap is easy to infiltration and leak, and the defect and deficiency seriously perplexed is brought to underwater construction, now provides a kind of structurally reasonable, phase The compactness connected between adjacent steel sheet pile is improved, and it is good to encircle and hunt down rear globality stability, and between adjacent steel sheet pile Hermetic seal effect is greatly improved, be not in seep water water leakage situation a kind of underwater construction encircle and hunt down hermetic seal knot Structure.
Second object of the present invention is to be not suitable for encircling and hunting down construction under water for existing construction method of encircling and hunting down, adjacent steel plate The compactness connected between stake is bad, and the infiltration and leak that can not prevent can cause construction seriously to frustrate, and construction risk is high Defect and deficiency, one kind is now provided and is suitable for encircling and hunting down construction under water, the compactness connected between adjacent steel sheet pile is good, It encircles and hunts down rear globality stability to be improved, and efficiently solves the technical problem of hermetic seal between adjacent steel sheet pile, Working security is good, and hermetic seal construction method is encircled and hunted down in a kind of high underwater construction of construction efficiency.
To realize above-mentioned first purpose, the technical solution of the invention is as follows: hermetic seal is encircled and hunted down in a kind of underwater construction Structure, including steel plate pile body, the lower end of steel plate pile body are to bore ground terminal, and the upper end of steel plate pile body is piling end, feature Be: the side of the steel plate pile body is fixedly installed the first hook connecting plate, the other side fixed setting of steel plate pile body Have the second hook connecting plate, the first hook connecting plate and the second hook connecting plate axisymmetricly or center symmetric setting, the first hook Arcwall face is set as on the inside of type connecting plate and the second hook connecting plate, arcwall face is semicircle or U-shaped structure, and the first hook connects Fishplate bar connect cooperation with the second hook connecting plate on adjacent steel sheet pile ontology, and two arcwall faces after connection cooperation collectively form Cylindrical seal chamber, cylindrical seal intracavitary extrusion packing have leakage proof mud or the intracavitary indentation of cylindrical seal to be enclosed with envelope The operating stick of stifled leakproof mud, the bottom of operating stick are provided with bottom end, and the diameter of bottom end is greater than the straight of operating stick upper end Diameter, the outside diameter of bottom end is less than the internal diameter of cylindrical seal chamber, between the upper end and operating stick excircle of bottom end Joint face is set as circular conical surface, and operating stick is provided with hollow axis hole, annular groove, bottom end are offered on the excircle of bottom end The bottom of head and the slot bottom of annular groove offer sprocket hole respectively, and sprocket hole is connected with hollow axis hole, hollow axis hole it is upper End is connected with the delivery end of leakage proof mud.
Further, the engaging portion between the steel plate pile body and the first hook connecting plate and the second hook connecting plate Position is provided with staggered floor platform, and the height of staggered floor platform is the thickness of the first hook connecting plate or the second hook connecting plate, and it is close to constitute cylindricality The intracavitary faying face sealed between the first hook connecting plate and the second hook connecting plate of chamber is smooth.
Further, the steel plate pile body, which is located to offer on the web of upper end, is auxiliarily fixed hole, two adjacent steel Fixing piece is provided between sheet pile ontology, fixing piece is fixed on by fixing bolt and is auxiliarily fixed on hole.
Further, the inner surface of the arcwall face is smooth, and the outer arc radius of arcwall face is less than steel plate pile body The 1/4 of transverse width, the bottom of cylindrical seal chamber are provided with articulated shaft, are equipped on articulated shaft for blocking cylindrical seal bottom of chamber The gear clod of portion port, the bottom for keeping off clod are set as circular conical surface.
Further, the length of the operating stick is greater than longitudinal depth of cylindrical seal chamber, and the maximum gauge of operating stick is small In the internal diameter of cylindrical seal chamber.
Further, the cross section of the operating stick is provided in round or ellipse, equidistant on the excircle of operating stick Be provided with multiple annulars or ellipse around boss, be fixed with elastic attachment ring on the excircle of boss, operating stick and boss it is outer Leakage proof mud is enclosed on circumference.
Further, mixing and water adding is made after the leakage proof mud is crushed respectively using kaolin, clay and lime.
To realize above-mentioned second purpose, the technical solution of the invention is as follows: hermetic seal is encircled and hunted down in a kind of underwater construction Construction method, it is characterised in that the following steps are included:
A, according to the steel sheet pile of construction depth and sealing depth selection appropriate length, and according to encircling and hunting down shape and area meter The quantity of steel sheet pile is calculated, and is sealed the bottom end of the first hook connecting plate and the second hook connecting plate respectively by keeping off clod;
B, the brill ground terminal of first piece of steel sheet pile is inserted perpendicularly into water-bed soil layer or in the surface soil layer of rich groundwater, and Struck or pressed using piling end of the pile compacting equipment to steel sheet pile so that steel sheet pile be at the uniform velocity perpendicularly inserted into water-bed soil layer or In the soil layer of rich groundwater, and reach predetermined depth;
C, second piece of steel sheet pile is vertically disposed in the side of first piece of steel sheet pile, and makes the first of second piece of steel sheet pile Hook connecting plate and the second hook connecting plate of first piece of steel sheet pile are interlockingly connected, the first hook connecting plate of second piece of steel sheet pile with Second hook connecting plate of first piece of steel sheet pile together constitutes cylindrical seal chamber, then uses pile compacting equipment with same method The piling end of second piece of steel sheet pile is struck or pressed, and reaches predetermined depth;
D, third block steel sheet pile is inserted into water-bed soil layer or the surface soil layer of rich groundwater in the same way again In, and reach predetermined depth, and the second hook of the first hook connecting plate of third block steel sheet pile and second piece of steel sheet pile connects Fishplate bar is interlockingly connected, and forms another cylindrical seal chamber, realizes the 4th piece of steel sheet pile, the 5th block of steel plate in the same way ... and the piling of last block steel sheet pile is in place, all forms cylindrical seal chamber between adjacent two pieces of steel sheet piles;
E, that slurry-mud made of leakage proof mud is filled into cylindrical seal by the delivery end of operating stick upper end is intracavitary, simultaneously Operating stick is twitched up and down, and leakage proof mud consolidates, and leakage proof mud is allowed sufficiently to block in the combination gap on cylindrical seal chamber, Or be rolled in leakage proof mud drum in the operating stick that cross section is ellipse, it is anti-in a small amount of closure of cylindrical seal intra-bladder instillation It leaks slurry liquid, then operating stick is inserted into cylindrical seal is intracavitary and to bottom, and then rotation operating stick simultaneously synchronizes slowly to operation Leakage proof slurry liquid is injected in gap between bar and cylindrical seal chamber, until the combination gap on cylindrical seal chamber is sufficiently sealed It is stifled, realize hermetic seal;
F, it when needing to remove steel sheet pile after the completion of engineering, is passed through by hawser and hole is auxiliarily fixed and in lifting on steel sheet pile Under the action of equipment steel sheet pile is extracted one by one from soil layer, cylindrical seal chamber is then slightly smaller than using an operating stick or diameter Cylindrical seal chamber is directly disclosed wear from top to bottom by the wooden stick of internal diameter, the intracavitary leakage proof mud of cylindrical seal is released, by steel sheet pile In case next time is reused after rinsing well.
Further, the c, in Step d, be provided with fixation on the outer surface between two adjacent steel plate pile bodies Part, fixing piece are fixed on by fixing bolt and are auxiliarily fixed on hole.
The beneficial effects of the present invention are:
1. the present invention is fixedly installed the first hook connecting plate in the side of steel plate pile body, in the another of steel plate pile body Side is fixedly installed the second hook connecting plate, and two pieces of adjacent steel sheet piles are fastened and connected by hook connecting plate, adjacent steel sheet pile Between the compactness that connects and fastness be all improved, and then improve the overall stability that steel sheet pile encircles and hunts down structure.
2. present invention employs cylindrical seal chambers as sealed body structure, close across cylindricality between the longitudinally connected seam of twice Cavity is sealed, extends infiltration path, and have leakage proof mud, leakage proof by operating stick extrusion packing cylindrical seal is intracavitary Mud seam longitudinally connected to twice and cylindrical seal cavity carry out closure sealing, have effectively blocked infiltration path, realize tight Reliable hermetic seal.
3. construction method of the invention can be realized and encircle and hunt down construction under water, easy construction, connected between adjacent steel sheet pile Compactness is good, and using cylindrical seal cavity block sealing by the way of, efficiently solve be difficult to realize between adjacent steel sheet pile it is close The technical problem of sealing water, seepage problem are solved perfectly, and use scope is extensive.
Detailed description of the invention
Fig. 1 is the first structural schematic diagram of the invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is second of structural schematic diagram of the invention.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the front schematic view after the two neighboring steel sheet pile connection of the present invention.
Fig. 6 is the structural schematic diagram after the two neighboring steel sheet pile connection of the present invention.
Fig. 7 is the schematic diagram after the intracavitary extrusion packing leakage proof mud of cylindrical seal of the present invention.
Fig. 8 is the first structural schematic diagram of operation of the present invention bar.
Fig. 9 is second of structural schematic diagram of operation of the present invention bar.
In figure: ground terminal 5, cylindricality are bored in steel plate pile body 1, the first hook connecting plate 2, the second hook connecting plate 3, piling end 4 Seal chamber 6, arcwall face 7, staggered floor platform 8 are auxiliarily fixed hole 9, fixing bolt 10, fixing piece 11, operating stick 12, bottom end 13, Sprocket hole 14, annular groove 15, boss 16, elastic attachment ring 17.
Specific embodiment
Below in conjunction with Detailed description of the invention and specific embodiment, the present invention is described in further detail.
Referring to Fig. 1 to Fig. 9, hermetic seal structure, including steel plate pile body 1, steel are encircled and hunted down in a kind of underwater construction of the invention The lower end of sheet pile ontology 1 is to bore ground terminal 5, and the upper end of steel plate pile body 1 is piling end 4, it is characterised in that: the steel plate pile body 1 side is fixedly installed the first hook connecting plate 2, and the other side of steel plate pile body 1 is fixedly installed the second hook connecting plate 3, the first hook connecting plate 2 and the second hook connecting plate 3 axisymmetricly or center symmetric setting, the first hook connecting plate 2 and The inside of two hook connecting plates 3 is set as arcwall face 7, and arcwall face 7 is semicircle or U-shaped structure, the first hook connecting plate 2 and phase The second hook connecting plate 3 in adjacent steel plate pile body 1 connects cooperation, and two arcwall faces 7 after connection cooperation together constitute column Shape seal chamber 6, extrusion packing has indentation in leakage proof mud or cylindrical seal chamber 6 to be enclosed with closure in cylindrical seal chamber 6 The operating stick 12 of leakproof mud, the bottom of operating stick 12 are provided with bottom end 13, and the diameter of bottom end 13 is greater than operating stick 12 The diameter of upper end, the outside diameter of bottom end 13 are less than the internal diameter of cylindrical seal chamber 6, the upper end of bottom end 13 and operating stick Joint face between 12 excircles is set as circular conical surface, and operating stick 12 is provided with hollow axis hole, on the excircle of bottom end 13 Annular groove 15 is offered, the bottom of bottom end 13 and the slot bottom of annular groove 15 offer sprocket hole 14, sprocket hole 14 respectively It is connected with hollow axis hole, the upper end of hollow axis hole is connected with the delivery end of leakage proof mud.
Binding site setting between the steel plate pile body 1 and the first hook connecting plate 2 and the second hook connecting plate 3 There is staggered floor platform 8, the height of staggered floor platform 8 is the thickness of the first hook connecting plate 2 or the second hook connecting plate 3, constitutes cylindrical seal Intracavitary faying face between the first hook connecting plate 2 and the second hook connecting plate 3 of chamber 6 is smooth.
The steel plate pile body 1, which is located to offer on the web of upper end, is auxiliarily fixed hole 9, two adjacent steel plate pile bodies Fixing piece 11 is provided between 1, fixing piece 11 is fixed on by fixing bolt 10 and is auxiliarily fixed on hole 9.
The inner surface of the arcwall face 7 is smooth, and the outer arc radius of arcwall face 7 is laterally wide less than steel plate pile body 1 The 1/4 of degree, the bottom of cylindrical seal chamber 6 is provided with articulated shaft, is equipped on articulated shaft for blocking cylindrical seal chamber bottom end The gear clod of mouth, the bottom for keeping off clod is set as circular conical surface.
The length of the operating stick 12 is greater than longitudinal depth of cylindrical seal chamber 6, and the maximum gauge of operating stick 12 is less than column The internal diameter of shape seal chamber 6.
The cross section of the operating stick 12 is provided in round or ellipse, is equidistantly provided on the excircle of operating stick 12 Multiple annulars or ellipse around boss 16, are fixed with elastic attachment ring 17, operating stick 12 and boss 16 on the excircle of boss 16 Excircle on be enclosed with leakage proof mud.
Mixing and water adding is made after the leakage proof mud is crushed respectively using kaolin, clay and lime.
Hermetic seal construction method is encircled and hunted down in a kind of underwater construction, comprising the following steps:
A, according to the steel sheet pile of construction depth and sealing depth selection appropriate length, and according to encircling and hunting down shape and area meter The quantity of steel sheet pile is calculated, and is sealed the bottom end of the first hook connecting plate 2 and the second hook connecting plate 3 respectively by keeping off clod Firmly;
B, the brill ground terminal 5 of first piece of steel sheet pile is inserted perpendicularly into water-bed soil layer or in the surface soil layer of rich groundwater, And the piling end 4 of steel sheet pile is struck or pressed using pile compacting equipment, so that steel sheet pile is at the uniform velocity perpendicularly inserted into water-bed soil In layer or the soil layer of rich groundwater, and reach predetermined depth;
C, second piece of steel sheet pile is vertically disposed in the side of first piece of steel sheet pile, and makes the first of second piece of steel sheet pile Hook connecting plate 2 and the second hook connecting plate 3 of first piece of steel sheet pile are interlockingly connected, the first hook connecting plate of second piece of steel sheet pile 2 and the second hook connecting plate 3 of first piece of steel sheet pile together constitute cylindrical seal chamber 6, then with same method using pressing Stake equipment is struck or is pressed to the piling end 4 of second piece of steel sheet pile, and reaches predetermined depth;
D, third block steel sheet pile is inserted into water-bed soil layer or the surface soil layer of rich groundwater in the same way again In, and reach predetermined depth, and the second hook of the first hook connecting plate 2 of third block steel sheet pile and second piece of steel sheet pile connects Fishplate bar 3 is interlockingly connected, and forms another cylindrical seal chamber 6, realizes the 4th piece of steel sheet pile, the 5th block of steel plate in the same way ... and the piling of last block steel sheet pile is in place, all forms cylindrical seal chamber 6 between adjacent two pieces of steel sheet piles;
E, slurry-mud made of leakage proof mud is filled into cylindrical seal chamber 6 by the delivery end of 12 upper end of operating stick, Twitch operating stick 12 up and down simultaneously, and leakage proof mud consolidates, and leakage proof mud is allowed to fill the combination gap on cylindrical seal chamber 6 Enfeoffment is stifled, or leakage proof mud drum is rolled in the operating stick 12 that cross section is ellipse, is perfused in cylindrical seal chamber 6 few The leakage proof slurry liquid of amount, then operating stick 12 is inserted into cylindrical seal chamber 6 and to bottom, then rotate operating stick 12 simultaneously It synchronizes and slowly injects leakage proof slurry liquid into the gap between operating stick 12 and cylindrical seal chamber 6, until cylindrical seal chamber 6 On combination gap sufficiently block, realize hermetic seal;
F, when needing to remove steel sheet pile after the completion of engineering, hole 9 is auxiliarily fixed and is rising on steel sheet pile is passed through by hawser Steel sheet pile is extracted one by one from soil layer under the action of heavy equipment, it is close to be then slightly smaller than cylindricality using an operating stick 12 or diameter The wooden stick of envelope 6 internal diameter of chamber, which from top to bottom directly discloses cylindrical seal chamber 6, to be worn, and the leakage proof mud in cylindrical seal chamber 6 is released, will In case next time is reused after steel sheet pile is rinsed well.
In the c, Step d, it is provided with fixing piece 11 on the outer surface between two adjacent steel plate pile bodies 1, Gu Determine part 11 to be fixed on and be auxiliarily fixed on hole 9 by fixing bolt 10.
Referring to Fig. 1 to Fig. 5, steel plate pile body 1 is made of quality steel plate, and has certain thickness, being capable of conduct Encircle and hunt down stake use.The lower end of steel plate pile body 1 is to bore ground terminal 5, and the bottom end for boring ground terminal 5 can be set to the inclined-plane meeting conical surface, bores ground End 5 is used to be inserted perpendicularly into water-bed soil layer or the surface soil layer of rich groundwater, and the upper end of steel plate pile body 1 is piling end 4, pressure Stake end 4 can suitably increase the bearing area of upper end horizontal plane, and piling end 4 is used to bear the impact or pressure of pile compacting equipment.With Tradition is encircled and hunted down unlike stake or steel sheet pile, and the present invention is fixedly installed the first hook connecting plate in the side of steel plate pile body 1 2, the side of steel plate pile body 1 is fixedly installed the second hook connecting plate 3, the first hook connecting plate 2 and the second hook connecting plate 3 Inside be set as arcwall face 7, arcwall face 7 can also use U-shaped structure or semiellipse type structure generally using semicircle.The One hook connecting plate 2 and the second hook connecting plate 3 are axisymmetricly or center symmetric setting, symmetrical centre are perpendicular for steel plate pile body 1 Longitudinal center immediately.When being arranged using axial symmetry, the first hook connecting plate 2 and the second hook connecting plate 3 are located at steel plate The same side of pile body 1, referring to attached drawing 1 and attached drawing 2.When using center symmetric setting, the first hook connecting plate 2 and the second hook Connecting plate 3 is located at the two sides of steel plate pile body 1, that is, on diagonal line, referring to attached drawing 3 and attached drawing 4.
First hook connecting plate 2 connect cooperation, connection cooperation with the second hook connecting plate 3 on adjacent steel sheet pile ontology 1 Two arcwall faces 7 afterwards together constitute cylindrical seal chamber 6, and two pieces of adjacent steel sheet piles are fastened and connected by hook connecting plate Afterwards, the hermetic seal problem between two pieces of adjacent steel sheet pile sheets is exactly the hermetic seal problem in cylindrical seal chamber 6, that is, As long as realizing the hermetic seal in cylindrical seal chamber 6 can be realized as hermetic seal between two pieces of adjacent steel sheet pile sheets. In addition, tradition encircles and hunts down the mode for being directly affixed and being abutted against side by side used by stake or steel sheet pile, it is adjacent to encircle and hunt down between stake or steel sheet pile The connecting sewing of only one genesis analysis, infiltration path is very short, even if using unconventional sides such as sealing rubber strip, air bag sealings Formula all can not effectively solve seepage problem, and seepage problem is difficult to solve.6 structure of cylindrical seal chamber of the present invention is in it The twice that the longitudinally connected seam in portion is, Relative distribution extend infiltration path, and seepage problem cooperates other supplementary means that can obtain To being solved perfectly, existing technical problem all the time can solve.
In order to improve the reliability of adjacent steel sheet pile connection, loosened after avoiding connection, improve cylindrical seal chamber 6 at Type tightness, combination of the present invention also between steel plate pile body 1 and the first hook connecting plate 2 and the second hook connecting plate 3 Position is provided with staggered floor platform 8, and the height of staggered floor platform 8 is the thickness of the first hook connecting plate 2 or the second hook connecting plate 3, adjacent After squeezing into soil layer, corresponding hook connecting plate can be withstood on staggered floor platform 8 steel sheet pile, also played certain limit and made With.Hole 9 is auxiliarily fixed in addition, also offering on the web that steel plate pile body 1 is located at upper end, two adjacent steel plate pile bodies Fixing piece 11 is provided between 1, fixing piece 11 is fixed on by fixing bolt 10 and is auxiliarily fixed on hole 9, two blocks of adjacent steel plates Stake is more firm after being connected using fixing piece 11.Hole 9 is auxiliarily fixed after removing fixing bolt 10 and fixing piece 11, can also make Cable fixation hole is worn when to lift.Between the first hook connecting plate 2 and the second hook connecting plate 3 for constituting cylindrical seal chamber 6 Intracavitary faying face is smooth, is sealed sealing operation convenient for subsequent.
A kind of hermetic seal mode of cylindrical seal chamber 6 is as follows: extrusion packing has leakage proof mud in cylindrical seal chamber 6, The leakage proof mud is pulpous state, and leakage proof mud is filled into cylindrical seal chamber 6, and cylindricality seal chamber 6 can be abundant after tamping It tamps, the longitudinally connected seam of the twice in cylindrical seal chamber 6 can also be blocked, and good hermetic seal effect has been reached.It is filling Operating stick 12 is used during note and tamping, the bottom of operating stick 12 is provided with bottom end 13, the diameter of bottom end 13 Greater than the diameter of 12 upper end of operating stick, the outside diameter of bottom end 13 is less than the internal diameter of cylindrical seal chamber 6, bottom end 13 Joint face between 12 excircle of upper end and operating stick is set as circular conical surface, and operating stick 12 is provided with hollow axis hole, bottom end Annular groove 15 is offered on 13 excircle, the bottom of bottom end 13 and the slot bottom of annular groove 15 offer sprocket hole respectively 14, sprocket hole 14 is connected with hollow axis hole, and the upper end of hollow axis hole is connected with the delivery end of leakage proof mud.
Another hermetic seal mode of cylindrical seal chamber 6 is as follows: it is anti-to be enclosed with closure for indentation in cylindrical seal chamber 6 The operating stick 12 of mud is leaked, the cross section of used operating stick 12 is provided in round or ellipse, on the excircle of operating stick 12 Spaced set has multiple annulars or ellipse around boss 16, is fixed with elastic attachment ring 17, operating stick on the excircle of boss 16 12 and boss 16 excircle on be enclosed with leakage proof mud, in this way can the less perfusion into cylindrical seal chamber 6 block it is anti- Leak mud.After the operating stick 12 for being enclosed with leakage proof mud is inserted into 6 inside of cylindrical seal chamber, continuous rotation process bar is needed 12, and synchronize and slowly inject leakage proof slurry liquid into the gap between operating stick 12 and cylindrical seal chamber 6, until operating stick Until when 12 can not rotate, the combination gap on cylindrical seal chamber 6 sufficiently blocks, two in cylindrical seal chamber 6 are allowed in this way The longitudinally connected seam in road can also be blocked, and ideal hermetic seal effect can have also been reached.
Mixing and water adding is made after leakage proof mud is crushed respectively using kaolin, clay and lime, according to the mass fraction, By 10~15 parts of kaolin, 30~45 parts of clays are made after 5~16 parts of lime and 15~24 parts of water mixings.Kaolin It is fine and smooth soft, there is good plasticity, mobility is also fine;Clay adhesive is good, good fluidity when being in slurry condition, and half It is not easy to flow after dry, be easy after compression hardened;Lime can generate cementing, raising integral strength after being added, moreover it is possible to viscosity is improved, Resistance to water slug.Leakage proof mud is formed after being mixed using kaolin, clay, lime and water, materials are extensively, low in cost, Leakage proof mud combines the advantageous feature of kaolin, clay and lime, has reached good plasticity, viscosity and cementing Integral strength afterwards, by the mobility and viscosity at initial stage, can enter longitudinal direction after being filled into cylindrical seal chamber 6 quickly In connecting sewing and in the binding site gap of soil layer and steel sheet pile, leakage proof then is consolidated in perfusion in cylindrical seal chamber 6 After mud, the gap between the gap and soil layer and steel sheet pile of longitudinally connected seam can be further compacted by leakage proof mud, be blocked Viscosity is larger after leakproof earth rubber knot, and integral strength is high, and soaking-resistant and impact have reached good hermetic seal effect, can be with There is ne-leakage, cleverly solves technical problem for a long time.
The construction method for encircling and hunting down hermetic seal structure using underwater construction of the invention is specific as follows: deep according to construction first The steel sheet pile of degree and sealing depth selection appropriate length, and according to encircling and hunting down shape and areal calculation goes out the quantity of steel sheet pile, and The bottom end of the first hook connecting plate 2 and the second hook connecting plate 3 is sealed respectively by gear clod.By the brill of first piece of steel sheet pile Ground terminal 5 is inserted perpendicularly into water-bed soil layer or in the surface soil layer of rich groundwater, and the piling using pile compacting equipment to steel sheet pile End 4 is struck or is pressed, so that steel sheet pile is at the uniform velocity perpendicularly inserted into water-bed soil layer or the soil layer of rich groundwater, and is reached Predetermined depth.Then second piece of steel sheet pile is vertically disposed in the side of first piece of steel sheet pile, and makes second piece of steel sheet pile Second hook connecting plate 3 of the first hook connecting plate 2 and first piece of steel sheet pile is interlockingly connected, and the first hook of second piece of steel sheet pile connects Second hook connecting plate 3 of fishplate bar 2 and first piece of steel sheet pile together constitutes cylindrical seal chamber 6, is then adopted with same method It is struck or is pressed with piling end 4 of the pile compacting equipment to second piece of steel sheet pile, and reach predetermined depth.Again by third block steel plate Stake is inserted into the same way in water-bed soil layer or in the surface soil layer of rich groundwater, and reaches predetermined depth, and the First hook connecting plate 2 of three pieces of steel sheet piles and the second hook connecting plate 3 of second piece of steel sheet pile are interlockingly connected, and form another Cylindrical seal chamber 6 realizes the 4th piece of steel sheet pile, the 5th piece of steel sheet pile ... and last block steel sheet pile in the same way Piling in place, all form cylindrical seal chamber 6 between adjacent two pieces of steel sheet piles.It can also be in two adjacent steel plate pile bodies 1 Between outer surface on be provided with fixing piece 11, fixing piece 11 is fixed on by fixing bolt 10 and is auxiliarily fixed on hole 9, to mention The reliability of high adjacent steel sheet pile connection.
Slurry-mud made of leakage proof mud is filled into cylindrical seal chamber 6 by the delivery end of 12 upper end of operating stick, simultaneously Operating stick 12 is twitched up and down, and leakage proof mud consolidates, and leakage proof mud is allowed sufficiently to seal in the combination gap on cylindrical seal chamber 6 It is stifled, or leakage proof mud drum is rolled in the operating stick 12 that cross section is ellipse, it is perfused on a small quantity in cylindrical seal chamber 6 Leakage proof slurry liquid, then operating stick 12 is inserted into cylindrical seal chamber 6 and to bottom, it is simultaneously synchronous then to rotate operating stick 12 Leakage proof slurry liquid is slowly injected into the gap between operating stick 12 and cylindrical seal chamber 6, until on cylindrical seal chamber 6 It is sufficiently blocked in conjunction with gap, realizes hermetic seal, this completes encircle and hunt down to operate with hermetic seal.
When needing to remove steel sheet pile after the completion of engineering, is passed through by hawser and hole 9 is auxiliarily fixed and in lifting on steel sheet pile Under the action of equipment steel sheet pile is extracted one by one from soil layer, cylindrical seal is then slightly smaller than using an operating stick 12 or diameter The wooden stick of 6 internal diameter of chamber, which from top to bottom directly discloses cylindrical seal chamber 6, to be worn, and the leakage proof mud in cylindrical seal chamber 6 is released, by steel In case next time is reused after sheet pile is rinsed well.Structure of the invention is novel, and use cost is cheap, and construction is very convenient, adjacent steel It is able to carry out between sheet pile and is closely fastened and connected, monolithic stability is good, and more important is solve underwater construction for a long time to beat The technical problem for enclosing hermetic seal avoids water on the outside of encircling and hunting down and largely penetrates into and pour in brought construction puzzlement.Using this What the construction method of invention was capable of different depth encircles and hunts down construction under water, and can reach depth is more than that 10 meters underwater encircles and hunts down construction Operation, hermetic seal effect is good, can be widely used in underwater foundation and build construction, bridge pier maintenance construction, submerged structure base The dell base of plinth construction and rich groundwater encircles and hunts down construction, and operation strategies are extensive.
The above content is specific embodiment further description to made by the present invention is combined, this hair must not believe that Bright specific implementation is only limited to these instructions, and for those of ordinary skill in the art to which the present invention belongs, is not being taken off Under the premise of present inventive concept, the present invention also has various simple replacements, improvements and changes, and that is made various simply replaces It changes, improvements and changes, all shall be regarded as belonging to protection scope of the present invention.

Claims (9)

1. hermetic seal structure, including steel plate pile body (1) are encircled and hunted down in a kind of underwater construction, the lower end of steel plate pile body (1) is to bore Ground terminal (5), the upper end of steel plate pile body (1) are piling end (4), it is characterised in that: the side of the steel plate pile body (1) is fixed It is provided with the first hook connecting plate (2), the other side of steel plate pile body (1) is fixedly installed the second hook connecting plate (3), and first Hook connecting plate (2) and the second hook connecting plate (3) axisymmetricly or center symmetric setting, the first hook connecting plate (2) and the It is set as arcwall face (7) on the inside of two hook connecting plates (3), arcwall face (7) is semicircle or U-shaped structure, the connection of the first hook Plate (2) connect cooperation, two arcwall faces after connection cooperation with the second hook connecting plate (3) on adjacent steel sheet pile ontology (1) (7) it together constitutes cylindrical seal chamber (6), cylindrical seal chamber (6) interior extrusion packing has leakage proof mud or cylindrical seal chamber (6) indentation has the operating stick (12) for being enclosed with leakage proof mud in, and the bottom of operating stick (12) is provided with bottom end (13), bottom The diameter of portion end (13) is greater than the diameter of operating stick (12) upper end, and the outside diameter of bottom end (13) is less than cylindrical seal chamber (6) internal diameter, the joint face between the upper end and operating stick (12) excircle of bottom end (13) are set as circular conical surface, operating stick (12) it is provided with hollow axis hole, is offered on the excircle of bottom end (13) annular groove (15), the bottom of bottom end (13) And the slot bottom of annular groove (15) offers sprocket hole (14) respectively, sprocket hole (14) is connected with hollow axis hole, hollow axis hole Upper end be connected with the delivery end of leakage proof mud.
2. hermetic seal structure is encircled and hunted down in a kind of underwater construction according to claim 1, it is characterised in that: the steel sheet pile sheet Binding site between body (1) and the first hook connecting plate (2) and the second hook connecting plate (3) is provided with staggered floor platform (8), wrong The height of layer platform (8) is the thickness of the first hook connecting plate (2) or the second hook connecting plate (3), constitutes cylindrical seal chamber (6) Intracavitary faying face between first hook connecting plate (2) and the second hook connecting plate (3) is smooth.
3. hermetic seal structure is encircled and hunted down in a kind of underwater construction according to claim 1, it is characterised in that: the steel sheet pile sheet Body (1), which is located to offer on the web of upper end, to be auxiliarily fixed hole (9), is provided between two adjacent steel plate pile bodies (1) solid Determine part (11), fixing piece (11) is fixed on by fixing bolt (10) and is auxiliarily fixed on hole (9).
4. hermetic seal structure is encircled and hunted down in a kind of underwater construction according to claim 1, it is characterised in that: the arcwall face (7) inner surface is smooth, and the outer arc radius of arcwall face (7) is less than the 1/4 of steel plate pile body (1) transverse width, cylindricality The bottom of seal chamber (6) is provided with articulated shaft, and the gear mud for blocking cylindrical seal chamber (6) bottom port is equipped on articulated shaft Block, the bottom for keeping off clod are set as circular conical surface.
5. hermetic seal structure is encircled and hunted down in a kind of underwater construction according to claim 1, it is characterised in that: the operating stick (12) length is greater than longitudinal depth of cylindrical seal chamber (6), and the maximum gauge of operating stick (12) is less than cylindrical seal chamber (6) Internal diameter.
6. hermetic seal structure is encircled and hunted down in a kind of underwater construction according to claim 1, it is characterised in that: the operating stick (12) cross section is provided in round or ellipse, and multiple annulars or oval are equidistantly provided on the excircle of operating stick (12) Shape boss (16) is fixed with elastic attachment ring (17) on the excircle of boss (16), operating stick (12) and boss (16) it is outer Leakage proof mud is enclosed on circumference.
7. hermetic seal structure is encircled and hunted down in a kind of underwater construction according to claim 1, it is characterised in that: the leakage proof Mixing and water adding is made after mud is crushed respectively using kaolin, clay and lime.
8. hermetic seal construction method is encircled and hunted down in a kind of underwater construction, it is characterised in that the following steps are included:
A, according to the steel sheet pile of construction depth and sealing depth selection appropriate length, and according to encircling and hunting down shape and areal calculation goes out The quantity of steel sheet pile, and sealed the bottom end of the first hook connecting plate (2) and the second hook connecting plate (3) respectively by keeping off clod Firmly;
B, the brill ground terminal (5) of first piece of steel sheet pile is inserted perpendicularly into water-bed soil layer or in the surface soil layer of rich groundwater, and It is struck or is pressed using piling end (4) of the pile compacting equipment to steel sheet pile, so that steel sheet pile is at the uniform velocity perpendicularly inserted into water-bed soil In layer or the soil layer of rich groundwater, and reach predetermined depth;
C, second piece of steel sheet pile is vertically disposed in the side of first piece of steel sheet pile, and makes first hook of second piece of steel sheet pile Connecting plate (2) and the second hook connecting plate (3) of first piece of steel sheet pile are interlockingly connected, the first hook connecting plate of second piece of steel sheet pile (2) cylindrical seal chamber (6) are together constituted with the second hook connecting plate (3) of first piece of steel sheet pile, then with same method It is struck or is pressed using piling end (4) of the pile compacting equipment to second piece of steel sheet pile, and reach predetermined depth;
D, third block steel sheet pile is inserted into the same way in water-bed soil layer or in the surface soil layer of rich groundwater again, and Reach predetermined depth, and the first hook connecting plate (2) of third block steel sheet pile is connect with the second hook of second piece of steel sheet pile Plate (3) is interlockingly connected, and forms another cylindrical seal chamber (6), realizes the 4th piece of steel sheet pile, the 5th block of steel plate in the same way ... and the piling of last block steel sheet pile is in place, all forms cylindrical seal chamber (6) between adjacent two pieces of steel sheet piles;
E, slurry-mud made of leakage proof mud is filled into cylindrical seal chamber (6) by the delivery end of operating stick (12) upper end, Operating stick (12) are twitched up and down simultaneously, and leakage proof mud consolidates, allows leakage proof mud by the bonding crack on cylindrical seal chamber (6) Gap sufficiently blocks, or leakage proof mud drum is rolled in the operating stick (12) that cross section is ellipse, in cylindrical seal chamber (6) The a small amount of leakage proof slurry liquid of interior perfusion, then operating stick (12) is inserted into cylindrical seal chamber (6) and to bottom, then turn Dynamic operating stick (12) and synchronize the slowly injection leakage proof mud into the gap between operating stick (12) and cylindrical seal chamber (6) Liquid realizes hermetic seal until the combination gap on cylindrical seal chamber (6) sufficiently blocks;
F, it when needing to remove steel sheet pile after the completion of engineering, is passed through by hawser and hole (9) is auxiliarily fixed and in lifting on steel sheet pile Steel sheet pile is extracted one by one from soil layer under the action of equipment, it is close to be then slightly smaller than cylindricality using an operating stick (12) or diameter The wooden stick of envelope chamber (6) internal diameter, which from top to bottom directly discloses cylindrical seal chamber (6), to be worn, and the closure released in cylindrical seal chamber (6) is anti- Mud is leaked, in case next time is reused after steel sheet pile is rinsed well.
9. hermetic seal construction method is encircled and hunted down in a kind of underwater construction according to claim 8, it is characterised in that: described c, d In step, it is provided with fixing piece (11) on the outer surface between two adjacent steel plate pile bodies (1), fixing piece (11) passes through Fixing bolt (10), which is fixed on, to be auxiliarily fixed on hole (9).
CN201711100542.6A 2017-11-09 2017-11-09 Hermetic seal structure and its construction method are encircled and hunted down in a kind of underwater construction Expired - Fee Related CN107794933B (en)

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