阅读说明：本技术 一种用于钢套箱围堰大体积封底的隔舱方法及结构 (A kind of compartment method and structure for steel boxed cofferdam large volume back cover ) 是由 张栋 王杰 徐启利 潘博 徐华阳 张爱花 涂满明 许佳平 连泽平 周燕飞 尹振君 于 2019-07-31 设计创作，主要内容包括：一种用于钢套箱围堰大体积封底的隔舱方法及结构,涉及桥梁施工技术领域,具体为所述围堰内具有多个钢护筒,包含以下步骤：在围堰侧板内壁加工出多对竖直滑道,且每对滑道相对设置于同一平面内,下放围堰本体；加工出多块与每对滑道相匹配的板体,将每块板体沿每对滑道下放至地面以下,将围堰本体分为多个施工区域；设置多个施工区域的施工顺序,根据施工顺序设置抵持每块板体的可调抄垫的位置,使每块板体两侧的施工区域中,可调抄垫安装在后施工的施工区域内的钢护筒与该板体之间。本发明减小了围堰下放的难度,同时单壁结构的隔舱加工简单且经济性好。(A kind of compartment method and structure for steel boxed cofferdam large volume back cover, it is related to technical field of bridge construction, there are multiple steel pile castings in the specially described cofferdam, it comprises the steps of: and goes out multipair vertical slideway in cofferdam side plate inwall processing, and each pair of slideway is relatively arranged in same plane, transfers cofferdam ontology；The plate body that muti-piece and each pair of slideway match is processed, every piece of plate body is transferred along each pair of slideway to below ground, cofferdam ontology is divided into multiple construction areas；The sequence of construction of multiple construction areas is set, the position of the adjustable pad of every piece of plate body is supported according to sequence of construction setting, in the construction area for making every piece of plate body two sides, between the steel pile casting and the plate body in construction area that adjustable pad is constructed after being mounted on.Present invention decreases the difficulty of cofferdam decentralization, while the processing is simple and good economy performance for the compartment of single-wall structure.)

1. a kind of compartment method for steel boxed cofferdam large volume back cover, there are multiple steel pile castings (7) in the cofferdam, it is special Sign is comprising the steps of:

In cofferdam, side plate (6) inwall processing goes out multipair vertical slideway (50), and each pair of slideway (50) is relatively arranged on same plane It is interior, it transfers cofferdam ontology (11)；

The plate body (10) that muti-piece matches with each pair of slideway (50) is processed, every piece of plate body (10) is transferred along each pair of slideway (50) To below ground, cofferdam ontology (11) is divided into multiple construction areas；

The sequence of construction of multiple construction areas is set, the adjustable pad (4) of every piece of plate body (10) is supported according to sequence of construction setting Position, in the construction area for making every piece of plate body (10) two sides, the steel in construction area that adjustable pad (4) is constructed after being mounted on Between casing (7) and the plate body (10).

2. a kind of compartment method for steel boxed cofferdam large volume back cover as described in claim 1, it is characterised in that: each The slideway (50) is formed by a pair of limit angle steel (5), and the limit angle steel (5) is fixed on vertically in cofferdam ontology (11) Wall, each pair of limit angle steel (5) is oppositely arranged to form one towards the opening in cofferdam, and each opening is for accommodating the plate body (10) side.

3. a kind of compartment method for steel boxed cofferdam large volume back cover as claimed in claim 2, it is characterised in that: described Plate body (10) includes the crossbeam (2) that panel (1) and more are used to reinforce panel (1) strength and stiffness, and the crossbeam (2) is horizontal It is set to the side of panel (1), and more crossbeam (2) interval settings.

4. a kind of compartment method for steel boxed cofferdam large volume back cover as claimed in claim 3, it is characterised in that: described The equal length of panel (1) and crossbeam (2), the crossbeam (2) use I-steel, and the thickness of the panel (1) adds I-steel Waist height less than any pair limit angle steel (5) opening spacing.

5. a kind of compartment method for steel boxed cofferdam large volume back cover as claimed in claim 3, it is characterised in that: more Spacing between crossbeam (2) is got over smaller down along cofferdam depth direction.

6. a kind of compartment method for steel boxed cofferdam large volume back cover as claimed in claim 3, it is characterised in that: described Plate body (10) also includes more vertical beams (3), and the vertical beam (3) is perpendicularly fixed at the crossbeam (2), and the crossbeam (2) is located at Between vertical beam (3) and panel (1).

7. a kind of compartment method for steel boxed cofferdam large volume back cover as described in claim 1, it is characterised in that: described Adjustable pad (4) includes static housing (401), active box (402) and muti-piece pad steel plate (403), the static housing (401) and active box (402) is rectangular housing, and the static housing (401) is mobilizable to be sheathed on active box (402) Outside, the static housing (401) is fixed on plate body (10)；

The static housing (401) is divided into incomplete section and complete segment by length direction, described incomplete section close to plate body (10), And the incomplete section of top surface shell is removed, and the pad steel plate (403) is inserted in described incomplete section, makes active box (402) it is stretched out outward from static housing (401), holds out against steel pile casting (7).

8. a kind of steel boxed cofferdam structure to be formed of being constructed based on claim 1 the method characterized by comprising

Cofferdam ontology (11), it is internal that there are multiple steel pile castings (7)；

Multipair slideway (50) is vertically arranged at cofferdam side plate (6) inner wall of cofferdam ontology (11), each pair of slideway (50) phase To being set in same plane；

Plate body (10) is inserted in each pair of slideway (50), cofferdam ontology (11) is divided into multiple construction areas；

Adjustable pad (4) is described adjustable between the steel pile casting (7) and the plate body (10) in the construction area constructed after being installed on Pad (4) is for supporting the plate body (10).

9. steel boxed cofferdam structure as claimed in claim 8, it is characterised in that: the plate body (10) includes panel (1), more Crossbeam (2) and more vertical beams (3), the crossbeam (2) are horizontally placed on panel (1) side, and more crossbeam (2) intervals are arranged, And the spacing each other the smaller down along cofferdam depth direction；The vertical beam (3) is perpendicularly fixed at the crossbeam (2), institute Crossbeam (2) is stated to be located between vertical beam (3) and panel (1).

10. steel boxed cofferdam structure as claimed in claim 8, it is characterised in that: the adjustable pad (4) includes static housing (401), active box (402) and muti-piece pad steel plate (403), the static housing (401) and active box (402) are square Shape shell, the static housing (401) is mobilizable to be sheathed on active box (402) outside, and the static housing (401) are fixed In plate body (10)；

The static housing (401) is divided into incomplete section and complete segment by length direction, described incomplete section close to plate body (10), And the incomplete section of top surface shell is removed, and the pad steel plate (403) is inserted in described incomplete section, makes active box (402) it is stretched out outward from static housing (401), holds out against steel pile casting (7).

Technical field

The present invention relates to technical field of bridge construction, specially a kind of compartment side for steel boxed cofferdam large volume back cover Method and structure.

Background technique

With the development of domestic and abroad bridge technology, bridge span is increasing, and pylon foundation cushion cap is accordingly also increasing, So that pylon foundation construct when bottom concrete can not one-time-concreting molding, need subregion to pour.Steel boxed cofferdam is substantially at present The bottom compartment principal mode of product bottom concrete construction is double-walled bottom compartment structure, which must shift to an earlier date and steel bushing Cofferdam welding is integral, then forms entirety with cofferdam and transfers simultaneously.But such compartment structure increases cofferdam decentralization Difficulty of construction, and the double-walled construction of compartment processes complexity, it is less economical.

Summary of the invention

In view of the deficiencies in the prior art, the purpose of the present invention is to provide one kind to be used for steel boxed cofferdam large volume The compartment method and structure of back cover reduce the difficulty of cofferdam decentralization, while the processing is simple and economy for the compartment of single-wall structure It is good.

To achieve the above objectives, using a kind of compartment method for steel boxed cofferdam large volume back cover, in the cofferdam With multiple steel pile castings comprising the steps of:

In cofferdam, side plate inwall processing goes out multipair vertical slideway, and each pair of slideway is relatively arranged in same plane, decentralization Cofferdam ontology；

The plate body that muti-piece and each pair of slideway match is processed, every piece of plate body is transferred along each pair of slideway to below ground, Cofferdam ontology is divided into multiple construction areas；

The sequence of construction of multiple construction areas is set, the position of the adjustable pad of every piece of plate body is supported according to sequence of construction setting It sets, in the construction area for making every piece of plate body two sides, adjustable pad is constructed after being mounted in construction area steel pile casting and the plate Between body.

Preferably, each slideway is formed by a pair of limit angle steel, and the limit angle steel is fixed on cofferdam sheet vertically Internal wall, each pair of limit angle steel is oppositely arranged to form one towards the opening in cofferdam, and each opening is for accommodating the plate The side of body.

Preferably, the plate body includes the crossbeam that panel and more are used to reinforce slab strength and rigidity, the crossbeam It is horizontally placed on the side of panel, and more girder space settings.

Preferably, the equal length of the panel and crossbeam, the crossbeam use I-steel, and the thickness of the panel adds The waist height of I-steel limits the opening spacing of angle steel less than any pair.

Preferably, the spacing between more crossbeams is got over smaller down along cofferdam depth direction.

Preferably, the plate body also includes more vertical beams, and the vertical beam is perpendicularly fixed at the crossbeam, the crossbeam position Between vertical beam and panel.

Preferably, the adjustable pad include static housing, active box and muti-piece pad steel plate, the static housing and Active box is rectangular housing, and the static housing is mobilizable to be sheathed on outside active box, and the static housing is fixed In plate body；The static housing is divided into incomplete section and complete segment by length direction, described incomplete section close to plate body, and it is described Incomplete section of top surface shell is removed, and the pad steel plate is inserted in described incomplete section, makes active box from static housing In stretch out outward, hold out against steel pile casting.

A kind of steel boxed cofferdam structure to be formed of being constructed based on the above method, comprising:

Cofferdam ontology, it is internal that there are multiple steel pile castings；

Multipair slideway, is vertically arranged at the cofferdam side plate inner wall of cofferdam ontology, and each pair of slideway is relatively arranged on together In one plane；

Plate body is inserted in each pair of slideway, and cofferdam ontology is divided into multiple construction areas；

Adjustable pad, between the steel pile casting and the plate body in construction area constructed after being installed on, the adjustable pad is used In supporting the plate body.

Preferably, the plate body includes that panel, more crossbeams and more vertical beams, the crossbeam are horizontally placed on panel side Face, more girder space settings, and spacing each other are got over smaller down along cofferdam depth direction；The vertical beam is vertically fixed In the crossbeam, the crossbeam is between vertical beam and panel.

Preferably, the adjustable pad include static housing, active box and muti-piece pad steel plate, the static housing and Active box is rectangular housing, and the static housing is mobilizable to be sheathed on outside active box, and the static housing is fixed In plate body；The static housing is divided into incomplete section and complete segment by length direction, described incomplete section close to plate body, and it is described Incomplete section of top surface shell is removed, and the pad steel plate is inserted in described incomplete section, makes active box from static housing In stretch out outward, hold out against steel pile casting.

The beneficial effects of the present invention are:

1, for compartment method of the invention while realizing that large volume back cover subregion is constructed, first decentralization has enclosing for slideway Weir, then plate body is transferred along slideway, cofferdam is divided into multiple construction areas, the side integrally transferred relative to traditional compartment and cofferdam Method reduces the difficulty of construction of cofferdam decentralization, improves construction efficiency.

2, relative to traditional double-walled bottom compartment structure, plate body of the invention is single-wall structure, at the same include panel with And reinforce the crossbeam and vertical beam of strength and stiffness, the processing is simple and good economy performance for the relatively traditional compartment of structure.

3, plate body of the invention is the slideway decentralization formed after the completion of cofferdam is transferred by the limit angle steel welded in advance In place, it is welded on the limit angle steel on the side plate of cofferdam in pairs and there are surplus gaps between plate body, specifically, the thickness of panel adds The waist height of upper I-steel limits the opening spacing of angle steel less than any pair, convenient for below plate body；Adjustable pad can pass through simultaneously The thickness and quantity of pad steel plate are adjusted, to adapt to the surplus gap；Under the premise of below convenient for plate body, steel is on the one hand held out against Casing enhances the rigidity of plate body, on the other hand reduces installation error, slideway strong applicability.

Detailed description of the invention

Fig. 1 is the cofferdam top view of the embodiment of the present invention.

Fig. 2 is the A-A cross-sectional view of Fig. 1.

Fig. 3 is the D-D cross-sectional view of Fig. 2.

Fig. 4 is the partial enlarged view I of Fig. 1.

Fig. 5 is the structural schematic diagram of the adjustable pad of the embodiment of the present invention.

Fig. 6 is the B-B cross-sectional view of Fig. 5.

Fig. 7 is the C-C cross-sectional view of Fig. 5.

Appended drawing reference:

1- panel, 2- crossbeam, 3- vertical beam, 4- is adjustable pad, 5- limit angle steel, the cofferdam 6- side plate, 7- steel pile casting, the two sides 8- Region, the central area 9-, 10- plate body, the cofferdam 11- ontology, 50- slideway, 101- steel plate, 102- riblet, 103- stiffened panel, 401- Static housing, 402- active box, 403- pad steel plate.

Specific embodiment

Invention is further described in detail with reference to the accompanying drawings and embodiments.

Shown in Fig. 1, a kind of compartment method for steel boxed cofferdam large volume back cover has multiple steel pile castings 7 in cofferdam, Compartment method of the invention comprises the steps of:

In cofferdam, 6 inwall processing of side plate goes out multipair vertical slideway 50, and each pair of slideway 50 is relatively arranged in same plane, Transfer cofferdam ontology 11.

The plate body 10 that muti-piece and each pair of slideway 50 match is processed, by every piece of plate body 10 along each pair of slideway 50 decentralization to ground Face is hereinafter, dividing cofferdam ontology 11 for multiple construction areas.

The sequence of construction of multiple construction areas is set, and according to sequence of construction, setting supports the adjustable pad 4 of every piece of plate body 10 Position, in the construction area for making 10 two sides of every piece of plate body, the steel pile casting in construction area that adjustable pad 4 is constructed after being mounted on Between 7 and the plate body 10.

Specifically, every piece of decentralization of plate body 10 can make the better tightness of plate body 10, by two adjacent constructions to below ground Region is spaced apart, and avoiding first construction area, construction area permeates backward；Cofferdam can also be enhanced after the completion of cofferdam construction simultaneously Stability.

Specifically, it after the decentralization in place of cofferdam ontology 11, to carry out inhaling the clear base of mud inside cofferdam ontology 11.Cofferdam ontology 11 refer to kidney ellipsoid structure itself in Fig. 1, and cofferdam refers to total in Fig. 1.

In the present embodiment, cofferdam ontology 11 is divided for three construction areas, respectively two two by two boards body 10 Side region 8 and an intermediate region 9.It is the then construction intermediate region 9 of two side areas 8 of first constructing that sequence of construction, which is arranged,.According to institute The sequence of construction of setting, by the steel pile casting 7 close to multiple adjustable pads 4 of two boards body 10, being all set in intermediate region 9 with Between plate body 10, two plate bodys 10 are held out against towards cofferdam two sides.

In other embodiments, if setting sequence of construction is the then construction two side areas 8 of intermediate region 9 of first constructing；Root According to the sequence of construction, between the steel pile casting 7 and the plate body 10 that need for adjustable pad 4 to be set in two side areas 8, at two close to Multiple adjustable pads 4 of plate body 10 are by two plate bodys 10 towards holding out against among cofferdam.Specifically, close to the adjustable of same plate body 10 Pad is adjustable pad 4 at one.

In a further embodiment, when cofferdam ontology 11 is divided by muti-piece plate body 10 for four or more construction areas, same root According to the sequence of construction of multiple construction areas, determine that the adjustable pad 4 in every place is in the which side of every piece of plate body 10, also, last In a construction area, the corresponding adjustable pad 4 of two boards body 10 that is closed on including it.The compartment method, is suitable for back cover coagulation The various sequences of construction of soil, structure versatility are preferable.

As shown in figure 4, in the present embodiment, each slideway 50 is formed by a pair of limit angle steel 5, limit angle steel 5 is vertical It is fixed on 11 inner wall of cofferdam ontology, each pair of limit angle steel 5 is oppositely arranged to form one towards the opening in cofferdam, and each opening For accommodating the side of plate body 10.Each pair of slideway 50 is relatively arranged in same plane, and every two pairs are open towards corresponding limit Parallactic angle steel 5 forms a pair of of slideway 50.Preferably, there are certain surplus seams with 6 inner wall of cofferdam side plate for the side end of plate body 10 Gap, which is the decentralization of plate body 10 there are surplus is installed, so that plate body 10 is more easier to transfer along slideway 50.

In a further embodiment, slideway 50 machining can form directly on cofferdam ontology 11, limit without using Angle steel 5.

As depicted in figs. 1 and 2, it is preferable that plate body 10 includes panel 1 and more crossbeams 2, and crossbeam 2 is for reinforcing panel 1 Strength and stiffness, crossbeam 2 are horizontally placed on the side of panel 1, and the more interval of crossbeam 2 settings.Preferably, crossbeam 2 with close to The adjustable pad 4 of the panel 1 is in the same side of the panel 1.

Further, the spacing between more crossbeams 2 is got over smaller down along cofferdam depth direction.It is poured in back cover mixed When solidifying soil, along cofferdam depth direction, pressure is bigger more down, and more the more intensive setting of crossbeam 2 can effectively be born along depth down The incremental pressure in direction.

Further, plate body 10 also includes more vertical beams 3, and vertical beam 3 is perpendicularly fixed at crossbeam 2, and crossbeam 2 is located at vertical beam 3 Between panel 1.Vertical beam 3 strengthens the horizontal and vertical rigidity of plate body 10, hold plate body 10 more can on the basis of crossbeam 2 By the pressure of concrete.Preferably, every 3 bottom end of vertical beam is also equipped with one block of horizontal steel plate；When plate body 10 transfers completion, Just support is on the ground for steel plate.

As shown in Fig. 2, in the present embodiment, the depth of 1 bottom end of panel is greater than the depth of 3 bottom end of vertical beam, also greater than most bottom Depth where one, portion crossbeam；When plate body 10 is transferred, ground is inserted into the bottom end of panel 1, until the steel plate of 3 bottom end of vertical beam contacts Ground, decentralization are completed, i.e. the decentralization of plate body 10 reaches design altitude.

As shown in figure 4, the equal length of panel 1 and crossbeam 2, the side alignment of the two, opening by each pair of limit angle steel 5 Mouth is accommodated；Crossbeam 2 uses I-steel, and the thickness of panel 1 limits opening for angle steel 5 less than any pair plus the waist height of I-steel Mouth spacing, so that there are surplus gaps between the panel 1 with crossbeam 2 and the opening for limiting angle steel 5.The surplus gap makes plate Body 10 is more easier to transfer along slideway 50, there are installation surplus, be not in because limit angle steel 5 mild distortion or bending and The situation of plate body 10 can not be transferred.

Preferably, panel 1 includes steel plate 101, riblet 102 and stiffened panel 103, and two blocks of steel plates 101 are arranged in parallel, more Root riblet 102 is parallel to each other and is arranged at intervals between two blocks of steel plates 101, is additionally provided with more root longs between more riblets 102 The stiffened panel 103 of bar shaped, stiffened panel 103 are arranged perpendicular to riblet 102；The panel 1 of the structure has stiffness and strength performance more It is good.

As shown in Fig. 5, Fig. 6 and Fig. 7, adjustable pad 4 includes static housing 401, active box 402 and muti-piece pad steel plate 403, static housing 401 and active box 402 are rectangular housing.Static housing 401 is mobilizable to be sheathed on active box 402 Outside, static housing 401 is fixed on plate body 10.

Static housing 401 is divided into incomplete section and complete segment by length direction, incomplete section close to plate body 10, and it is incomplete Section top surface shell be removed, pad steel plate 403 is inserted in incomplete section, make active box 402 from static housing 401 outward It stretches out, holds out against steel pile casting 7.

In the present embodiment, the adjustable elasticity supported of adjustable pad 4, static housing 401 are fixed on vertical beam 3, Active box 402 is plugged in static housing 401.Active box 402 can stretch out outward from static housing 401.

During actual installation, panel 1, crossbeam 2 and vertical beam 3 are first welded into plate body 10, while by adjustable pad 4 Static housing 401 be welded in vertical beam 3；The plate body 10 after above-mentioned welding is transferred along slideway 50 again, until the vertical beam 3 of plate body 10 Bottom end contacts ground, can efficient quick since there are surplus gaps between the opening and plate body 10 of limit angle steel when decentralization Completion transfer work.After decentralization is completed, to avoid plate body 10 movable in above-mentioned surplus gap, pad steel plate is plugged 403 stretch out active box 402 outward from static housing 401, and active box 402 is made to hold out against steel pile casting 7, thus by plate body 10 Opposite side is held out against where towards pad steel plate 403.

The above process can pass through the thickness and quantity of adjusting pad steel plate 403, Lai Shiying surplus gap；It is being convenient for plate body 10 Under the premise of lower section, adjustable 4 one side of pad holds out against steel pile casting 7, enhances the rigidity of plate body, on the other hand reduces plate body 10 With the installation error of slideway 50, the strong applicability of slideway 50.

As shown in Figure 1, Figure 2 and Figure 3, it is constructed the steel boxed cofferdam to be formed the invention also includes a kind of with above-mentioned compartment method Structure, it includes cofferdam ontology 11, plate body 10, adjustable pad 4 and multipair slideways 50；There are multiple steel inside cofferdam ontology 11 Casing 7；Multipair slideway 50 is vertically arranged at 6 inner wall of cofferdam side plate of cofferdam ontology 11, and each pair of slideway 50 is relatively arranged on same In plane；Plate body 10 is inserted in each pair of slideway 50, and cofferdam ontology 11 is divided for multiple construction areas；After adjustable pad is installed on Between steel pile casting 7 and the plate body 10 in the construction area of construction, for supporting the plate body 10.

Further, plate body 10 includes that panel 1, more crossbeams 2 and more vertical beams 3, crossbeam 2 are horizontally placed on panel 1 Side, the more interval of crossbeam 2 settings, and spacing each other are got over smaller down along cofferdam depth direction；Vertical beam 3 is vertically fixed In crossbeam 2, crossbeam 2 is between vertical beam 3 and panel 1.

Further, adjustable pad 4 includes static housing 401, active box 402 and muti-piece pad steel plate 403, fixed case Body 401 and active box 402 are rectangular housing, and static housing 401 is mobilizable to be sheathed on outside active box 402, will be fixed Cabinet 401 is fixed on plate body 10；

Static housing 401 is divided into incomplete section and complete segment by length direction, incomplete section close to plate body 10, and it is incomplete Section top surface shell be removed, pad steel plate 403 is inserted in incomplete section, make active box 402 from static housing 401 outward It stretches out, holds out against steel pile casting 7.

Traditional double-walled compartment structure, structure essence is substituted in the plate body of steel boxed cofferdam structure single-wall structure of the invention Letter, the processing is simple and good economy performance.

The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.