CN204343283U - Soft soil layer construction of diaphragm wall structure - Google Patents

Soft soil layer construction of diaphragm wall structure Download PDF

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Publication number
CN204343283U
CN204343283U CN201420784560.6U CN201420784560U CN204343283U CN 204343283 U CN204343283 U CN 204343283U CN 201420784560 U CN201420784560 U CN 201420784560U CN 204343283 U CN204343283 U CN 204343283U
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China
Prior art keywords
reinforcing cage
steel plate
diaphragm
groove
sides
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CN201420784560.6U
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Inventor
朱建锋
武群虎
余文元
胡智慧
王小生
杜伟
王亚军
罗云辉
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Sixth Engineering Co Ltd of China Railway 20th Bureau Group Co Ltd
Firts Engineering Co Ltd of China Railway 20th Bureau Group Co Ltd
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Firts Engineering Co Ltd of China Railway 20th Bureau Group Co Ltd
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Abstract

The utility model discloses a kind of soft soil layer construction of diaphragm wall structure, institute's construction diaphragm wall is formed by connecting by multiple unit groove section, multiple unit groove section comprises multiple first phase groove section and multiple the second stage of groove section, this construction of diaphragm wall structure comprises multiple the first reinforcing cage be laid in respectively in multiple first phase groove section, multiplely be laid in the second reinforcing cage in multiple the second stage of groove section and the unit groove section concrete device for casting for carrying out filling concrete to first phase groove section and the second stage of groove section respectively, the both sides, front and back of each first reinforcing cage are provided with the joint that is rigidly connected, the joint that is rigidly connected is H-shaped joint and it comprises interior steel plate, outer steel plate and junction steel plate, the both sides, front and back of H-shaped joint are respectively a concave shape interface, unit groove section concrete device for casting comprises many grouting pipe and multiple storage bin hopper.Simple, the reasonable in design and easy construction of the utility model structure, result of use are good, can easy, complete construction of diaphragm wall process fast.

Description

Soft soil layer construction of diaphragm wall structure
Technical field
The utility model belongs to underground continuous wall construction technique field, especially relates to a kind of soft soil layer construction of diaphragm wall structure.
Background technology
Diaphragm wall is that Foundation Design adopts a kind of trench machine on the ground, along the periphery axis of deep excavation project, under mud off condition, excavate out a long and narrow deep trouth, after clear groove, install reinforcing cage in groove, then a unit groove section is built up with tremie method underwater concreting with tremie method, so carry out piecemeal, build up one continuous print steel concrete wall in underground, as intercepting water, antiseepage, load-bearing and water-retaining structure.In practice of construction process, when carrying out construction of diaphragm wall under rich water Soft Clay condition, due to moisture abundant in institute's construction area soil property, for guaranteeing construction speed and the construction quality of diaphragm wall, water seal design need be carried out to the reinforcing cage of diaphragm wall.But nowadays, the construction aspect of diaphragm wall under rich water Soft Clay condition, can be less for the data used for reference, and difficulty of construction is larger.Thus, simple, the reasonable in design and easy construction of a kind of structure, soft soil layer construction of diaphragm wall structure that result of use is good need be designed, by the joint that is rigidly connected all reinforcing cages of constructed diaphragm wall are fastenedly connected and are integrated, there is good stagnant water effect, and carry out concreting by hoisting frame hoisting grouting conduit, can easy, complete construction of diaphragm wall process fast.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of soft soil layer construction of diaphragm wall structure is provided, simple, the reasonable in design and easy construction of its structure, result of use are good, can easy, complete construction of diaphragm wall process fast.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of soft soil layer construction of diaphragm wall structure, institute's construction diaphragm wall is formed by connecting by multiple unit groove section, multiple described unit groove section is laid from front to back along the body of wall center line of institute's construction diaphragm wall, multiple described unit groove section is reinforced concrete structure and it comprises multiple first phase groove section and multiple the second stage of groove section, described first phase groove section and described the second stage of groove section are in being laid staggeredly, a described the second stage of groove section is provided with between adjacent two the described first phase groove sections in front and back, it is characterized in that: comprise multiple the first reinforcing cage be laid in respectively in multiple described first phase groove section, multiplely be laid in the second reinforcing cage in multiple described the second stage of groove section and the unit groove section concrete device for casting for carrying out filling concrete to described first phase groove section and the second stage of groove section respectively, multiple described first reinforcing cage and multiple described second reinforcing cage are all laid from front to back along the body of wall center line of institute's construction diaphragm wall, second reinforcing cage is provided with between adjacent two described first reinforcing cages in front and back, the structure of multiple described first reinforcing cage is all identical, and the structure of multiple described second reinforcing cage is all identical, and multiple described first reinforcing cage and multiple described second reinforcing cage are all laid in same level, the both sides, front and back of each described first reinforcing cage are provided with the joint that is rigidly connected, the described joint that is rigidly connected is H-shaped joint and it comprises interior steel plate and is positioned at the outer steel plate outside steel plate, described interior steel plate is parallel laying with outer steel plate and is connected by junction steel plate therebetween, and described junction steel plate and interior steel plate are vertical runs, the both sides, front and back of described H-shaped joint are respectively a concave shape interface, the both sides, front and back of described first reinforcing cage are separately fixed in the described concave shape interface of the joint that is rigidly connected, the both sides, front and back of described second reinforcing cage are width diminishing isosceles trapezoid joint from the inside to the outside, and the both sides, front and back of the second reinforcing cage are all inserted in the described concave shape interface of the joint that is rigidly connected, described first reinforcing cage and the joint that is rigidly connected before and after it set by both sides are connected to one, before and after described first reinforcing cage both sides the described concave shape interface fixed be fixation side interface, and before and after the second reinforcing cage both sides the described concave shape interface fixed be plug-in mounting side interface, the degree of depth D1 of described fixation side interface is less than the degree of depth D2 of described plug-in mounting side interface, described unit groove section concrete device for casting comprises many vertically to the grouting pipe in insertion first reinforcing cage or the second reinforcing cage and multiple storage bin hopper being arranged on many described grouting pipe tops respectively, described storage bin hopper is bore diminishing broach hopper from top to bottom, on the center line that many described grouting pipe are all positioned at the first reinforcing cage or the second reinforcing cage and its be all positioned on same vertical plane.
Above-mentioned soft soil layer construction of diaphragm wall structure, is characterized in that: the structure of many described grouting pipe is all identical with size, and the diameter of described grouting pipe is Φ 200mm ~ Φ 300mm.
Above-mentioned soft soil layer construction of diaphragm wall structure, is characterized in that: in described unit groove section concrete device for casting, the quantity of included grouting pipe is two.
Above-mentioned soft soil layer construction of diaphragm wall structure, is characterized in that: the distance between bottom the bottom of many described grouting pipe and the first reinforcing cage or bottom the second reinforcing cage is 300mm ~ 500mm.
Above-mentioned soft soil layer construction of diaphragm wall structure, it is characterized in that: described unit groove section concrete device for casting also comprises the hoisting frame promoted up and down many described grouting pipe, many described grouting pipe are installed on hoisting frame, and multiple described storage bin hopper is all positioned at above hoisting frame.
Above-mentioned soft soil layer construction of diaphragm wall structure, is characterized in that: described hoisting frame is shape steel bracket, and on described shape steel bracket, tiling has one deck horizontal steel plate, described horizontal steel plate has multiple respectively for the Pipe installing hole that many described grouting pipe are installed.
Above-mentioned soft soil layer construction of diaphragm wall structure, is characterized in that: the both sides, front and back of described first reinforcing cage are all fixedly connected with welding manner with between interior steel plate and outer steel plate.
Above-mentioned soft soil layer construction of diaphragm wall structure, is characterized in that: the both sides, front and back of described first reinforcing cage and all pad between interior steel plate and outer steel plate billet is housed.
Above-mentioned soft soil layer construction of diaphragm wall structure, is characterized in that: the width of described first reinforcing cage and the second reinforcing cage is with highly all identical; Described interior steel plate is all identical with size with the structure of outer steel plate and the two spacing is identical with the width of the first reinforcing cage; Described interior steel plate, outer steel plate are all identical with the height of the first reinforcing cage with the height of junction steel plate.
Above-mentioned soft soil layer construction of diaphragm wall structure, is characterized in that: the width of described interior steel plate and outer steel plate is 20cm ~ 40cm, and the thickness of slab of interior steel plate, outer steel plate and junction steel plate is 8mm ~ 12mm.
The utility model compared with prior art has the following advantages:
1, structure simple, reasonable in design and processing and fabricating and easy construction, input cost is lower.
2, the H-shaped joint design adopted is simple, reasonable in design and processing and fabricating is easy, and can realize being rigidly connected between former and later two reinforcing cages, and practical effect is good.
3, overall construction design is reasonable, and between adjacent two the first reinforcing cages, be provided with second reinforcing cage, the both sides, front and back of each first reinforcing cage are provided with a H-shaped joint.During practice of construction, using the unit groove section residing for the first reinforcing cage as first phase groove section, first carry out filling concrete construction; Further, using the unit groove section residing for the second reinforcing cage as the second stage of groove section.Actual when constructing, the second reinforcing cage both sides all do not arrange H-shaped joint, not only lift conveniently, transfer simple, and there will not be card cage phenomenon, and can effectively ensure institute's construction molding diaphragm wall joint quality.
4, the unit groove section concrete device for casting structure adopted is simple, reasonable in design and construction effect is good, grouting pipe is upwards promoted by hoisting frame, and can easy, the filling concrete process that completes each unit groove section fast.
5, result of use is good, after adopting H-shaped joint to be connected with the second reinforcing cage by the first reinforcing cage, there is good stagnant water effect, by the joint that is rigidly connected all reinforcing cages of constructed diaphragm wall are fastenedly connected and are integrated, there is good stagnant water effect, and carry out concreting by hoisting frame hoisting grouting conduit, can easy, complete construction of diaphragm wall process fast, the sealing of institute's construction molding diaphragm wall, gear soil and load bearing effect all can effectively be ensured, and can ensure the overall continuity of diaphragm wall.
In sum, simple, the reasonable in design and easy construction of the utility model structure, result of use are good, can easy, complete construction of diaphragm wall process fast.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the connection status figure of the utility model first reinforcing cage and the second reinforcing cage.
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
Fig. 3 is the using state schematic diagram of the utility model unit groove section concrete device for casting.
Fig. 4 is the installation position schematic diagram of the utility model Grouting Pipe and storage bin hopper.
Description of reference numerals:
1-the first reinforcing cage; 2-the second reinforcing cage; 3-be rigidly connected joint;
3-1-interior steel plate; 3-2-outer steel plate; 3-3-junction steel plate;
4-grouting pipe; 5-hoisting frame; 5-1-horizontal steel plate;
6-billet; 7-storage bin hopper; 8-slotted eye.
Detailed description of the invention
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, institute's construction diaphragm wall is formed by connecting by multiple unit groove section, multiple described unit groove section is laid from front to back along the body of wall center line of institute's construction diaphragm wall, multiple described unit groove section is reinforced concrete structure and it comprises multiple first phase groove section and multiple the second stage of groove section, described first phase groove section and described the second stage of groove section are in being laid staggeredly, a described the second stage of groove section is provided with between adjacent two the described first phase groove sections in front and back, this construction of diaphragm wall structure comprises multiple the first reinforcing cage 1 be laid in respectively in multiple described first phase groove section, multiplely be laid in the second reinforcing cage 2 in multiple described the second stage of groove section and the unit groove section concrete device for casting for carrying out filling concrete to described first phase groove section and the second stage of groove section respectively, multiple described first reinforcing cage 1 and multiple described second reinforcing cage 2 are all laid from front to back along the body of wall center line of institute's construction diaphragm wall, second reinforcing cage 2 is provided with between adjacent two described first reinforcing cages 1 in front and back.The structure of multiple described first reinforcing cage 1 is all identical, and the structure of multiple described second reinforcing cage 2 is all identical, and multiple described first reinforcing cage 1 and multiple described second reinforcing cage 2 are all laid in same level.The both sides, front and back of each described first reinforcing cage 1 are provided with the joint 3 that is rigidly connected, the described joint 3 that is rigidly connected is H-shaped joint and it comprises interior steel plate 3-1 and is positioned at the outer steel plate 3-2 outside steel plate 3-1, described interior steel plate 3-1 is parallel laying with outer steel plate 3-2 and is connected by junction steel plate 3-3 therebetween, and described junction steel plate 3-3 and interior steel plate 3-1 is vertical runs.The both sides, front and back of described H-shaped joint are respectively a concave shape interface, the both sides, front and back of described first reinforcing cage 1 are separately fixed in the described concave shape interface of the joint 3 that is rigidly connected, the both sides, front and back of described second reinforcing cage 2 are width diminishing isosceles trapezoid joint from the inside to the outside, and the both sides, front and back of the second reinforcing cage 2 are all inserted in the described concave shape interface of the joint 3 that is rigidly connected.Described first reinforcing cage 1 and the joint 3 that is rigidly connected before and after it set by both sides are connected to one.Before and after described first reinforcing cage 1 both sides the described concave shape interface fixed be fixation side interface, and before and after the second reinforcing cage 2 both sides the described concave shape interface fixed be plug-in mounting side interface, the degree of depth D1 of described fixation side interface is less than the degree of depth D2 of described plug-in mounting side interface.Described unit groove section concrete device for casting comprises many vertically to the grouting pipe 4 in insertion first reinforcing cage 1 or the second reinforcing cage 2 and multiple storage bin hopper 7 being arranged on many described grouting pipe 4 tops respectively, described storage bin hopper 7 is bore diminishing broach hopper from top to bottom, on the center line that many described grouting pipe 4 are all positioned at the first reinforcing cage 1 or the second reinforcing cage 2 and its be all positioned on same vertical plane.
In the present embodiment, the structure of many described grouting pipe 4 is all identical with size, and the diameter of described grouting pipe 4 is Φ 200mm ~ Φ 300mm.
In the present embodiment, in described unit groove section concrete device for casting, the quantity of included grouting pipe 4 is two.
Further, the distance between bottom the bottom of many described grouting pipe 4 and the first reinforcing cage 1 or bottom the second reinforcing cage 2 is 300mm ~ 500mm.
In the present embodiment, described unit groove section concrete device for casting also comprises the hoisting frame 5 promoted many described grouting pipe about 4, and many described grouting pipe 4 are installed on hoisting frame 5, and multiple described storage bin hopper 7 is all positioned at above hoisting frame 5.
Actual when carrying out filling concrete, by hoisting frame 5, many described grouting pipe 4 are upwards promoted gradually.
In the present embodiment, described hoisting frame 5 is shape steel bracket, and on described shape steel bracket, tiling has one deck horizontal steel plate 5-1, described horizontal steel plate 5-1 has multiple respectively for the Pipe installing hole that many described grouting pipe 4 are installed.
Actually add man-hour, the both sides, front and back of described first reinforcing cage 1 are all fixedly connected with welding manner with between interior steel plate 3-1 and outer steel plate 3-2.
Further, described first reinforcing cage 1 both sides, front and back and all pad between interior steel plate 3-1 and outer steel plate 3-2 billet 6 be housed.Thus, the both sides, front and back and being all welded and fixed by billet 6 between interior steel plate 3-1 and outer steel plate 3-2 of described first reinforcing cage 1 are integrated.
In the present embodiment, the width of described first reinforcing cage 1 and the second reinforcing cage 2 is with highly all identical; Described interior steel plate 3-1 is all identical with size with the structure of outer steel plate 3-2 and the two spacing is identical with the width of the first reinforcing cage 1; Described interior steel plate 3-1, outer steel plate 3-2 are all identical with the height of the first reinforcing cage 1 with the height of junction steel plate 3-3.
Actually add man-hour, the width of described interior steel plate 3-1 and outer steel plate 3-2 is 20cm ~ 40cm, and the thickness of slab of interior steel plate 3-1, outer steel plate 3-2 and junction steel plate 3-3 is 8mm ~ 12mm.
In the present embodiment, the width of described interior steel plate 3-1 and outer steel plate 3-2 is 30cm, and the thickness of slab of interior steel plate 3-1, outer steel plate 3-2 and junction steel plate 3-3 is 1cm.
In the present embodiment, D1=11.5cm, D2=17.5cm.
Actually add man-hour, can according to specific needs, the value size of D1 and D2 be adjusted accordingly.
During practice of construction, the first reinforcing cage 1 and the second reinforcing cage 2 are all positioned at the slotted eye 8 of constructed diaphragm wall.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.

Claims (10)

1. a soft soil layer construction of diaphragm wall structure, institute's construction diaphragm wall is formed by connecting by multiple unit groove section, multiple described unit groove section is laid from front to back along the body of wall center line of institute's construction diaphragm wall, multiple described unit groove section is reinforced concrete structure and it comprises multiple first phase groove section and multiple the second stage of groove section, described first phase groove section and described the second stage of groove section are in being laid staggeredly, a described the second stage of groove section is provided with between adjacent two the described first phase groove sections in front and back, it is characterized in that: comprise multiple the first reinforcing cage (1) be laid in respectively in multiple described first phase groove section, multiplely be laid in the second reinforcing cage (2) in multiple described the second stage of groove section and the unit groove section concrete device for casting for carrying out filling concrete to described first phase groove section and the second stage of groove section respectively, multiple described first reinforcing cage (1) and multiple described second reinforcing cage (2) are all laid from front to back along the body of wall center line of institute's construction diaphragm wall, second reinforcing cage (2) is provided with between adjacent two described first reinforcing cages (1) in front and back, the structure of multiple described first reinforcing cage (1) is all identical, and the structure of multiple described second reinforcing cage (2) is all identical, multiple described first reinforcing cage (1) and multiple described second reinforcing cage (2) are all laid in same level, the both sides, front and back of each described first reinforcing cage (1) are provided with a joint that is rigidly connected (3), the described joint that is rigidly connected (3) for H-shaped joint and it comprise interior steel plate (3-1) and be positioned at steel plate (3-1) outside outer steel plate (3-2), described interior steel plate (3-1) and outer steel plate (3-2) are connected by junction steel plate (3-3) in parallel laying and therebetween, and described junction steel plate (3-3) and interior steel plate (3-1) are in vertical runs, the both sides, front and back of described H-shaped joint are respectively a concave shape interface, the both sides, front and back of described first reinforcing cage (1) are separately fixed in the described concave shape interface of the joint that is rigidly connected (3), the both sides, front and back of described second reinforcing cage (2) are width diminishing isosceles trapezoid joint from the inside to the outside, and the both sides, front and back of the second reinforcing cage (2) are all inserted in the described concave shape interface of the joint that is rigidly connected (3), described first reinforcing cage (1) and the joint that is rigidly connected (3) before and after it set by both sides are connected to one, before and after described first reinforcing cage (1) both sides the described concave shape interface fixed be fixation side interface, and before and after the second reinforcing cage (2) both sides the described concave shape interface fixed be plug-in mounting side interface, the degree of depth D1 of described fixation side interface is less than the degree of depth D2 of described plug-in mounting side interface, described unit groove section concrete device for casting comprises many vertically to the grouting pipe (4) in insertion first reinforcing cage (1) or the second reinforcing cage (2) and multiple storage bin hopper (7) being arranged on many described grouting pipe (4) tops respectively, described storage bin hopper (7) is bore diminishing broach hopper from top to bottom, on the center line that many described grouting pipe (4) are all positioned at the first reinforcing cage (1) or the second reinforcing cage (2) and its be all positioned on same vertical plane.
2. according to soft soil layer construction of diaphragm wall structure according to claim 1, it is characterized in that: the structure of many described grouting pipe (4) is all identical with size, the diameter of described grouting pipe (4) is Φ 200mm ~ Φ 300mm.
3. according to the soft soil layer construction of diaphragm wall structure described in claim 1 or 2, it is characterized in that: in described unit groove section concrete device for casting, the quantity of included grouting pipe (4) is two.
4., according to the soft soil layer construction of diaphragm wall structure described in claim 1 or 2, it is characterized in that: the bottom of many described grouting pipe (4) and the first reinforcing cage (1) bottom or the second reinforcing cage (2) bottom between distance be 300mm ~ 500mm.
5. according to the soft soil layer construction of diaphragm wall structure described in claim 1 or 2, it is characterized in that: described unit groove section concrete device for casting also comprises the hoisting frame (5) promoted up and down many described grouting pipe (4), many described grouting pipe (4) are installed on hoisting frame (5), and multiple described storage bin hopper (7) is all positioned at hoisting frame (5) top.
6. according to soft soil layer construction of diaphragm wall structure according to claim 5, it is characterized in that: described hoisting frame (5) is shape steel bracket, on described shape steel bracket, tiling has one deck horizontal steel plate (5-1), described horizontal steel plate (5-1) has multiple Pipe installing hole supplying many described grouting pipe (4) to install respectively.
7. according to the soft soil layer construction of diaphragm wall structure described in claim 1 or 2, it is characterized in that: the both sides, front and back of described first reinforcing cage (1) are all fixedly connected with welding manner with between interior steel plate (3-1) and outer steel plate (3-2).
8. according to soft soil layer construction of diaphragm wall structure according to claim 7, it is characterized in that: the both sides, front and back of described first reinforcing cage (1) and all pad between interior steel plate (3-1) and outer steel plate (3-2) billet (6) is housed.
9. according to the soft soil layer construction of diaphragm wall structure described in claim 1 or 2, it is characterized in that: the width of described first reinforcing cage (1) and the second reinforcing cage (2) is with highly all identical; Described interior steel plate (3-1) is all identical with size with the structure of outer steel plate (3-2) and the two spacing is identical with the width of the first reinforcing cage (1); Described interior steel plate (3-1), outer steel plate (3-2) are all identical with the height of the first reinforcing cage (1) with the height of junction steel plate (3-3).
10. according to the soft soil layer construction of diaphragm wall structure described in claim 1 or 2, it is characterized in that: the width of described interior steel plate (3-1) and outer steel plate (3-2) is 20cm ~ 40cm, and the thickness of slab of interior steel plate (3-1), outer steel plate (3-2) and junction steel plate (3-3) is 8mm ~ 12mm.
CN201420784560.6U 2014-12-11 2014-12-11 Soft soil layer construction of diaphragm wall structure Active CN204343283U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105780815A (en) * 2015-12-09 2016-07-20 中建七局(上海)有限公司 Anti-seepage construction device and method for continuous wall
CN105970916A (en) * 2016-06-30 2016-09-28 中铁十八局集团第五工程有限公司 Construction method for plain concrete underground diaphragm wall of deep foundation pit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105780815A (en) * 2015-12-09 2016-07-20 中建七局(上海)有限公司 Anti-seepage construction device and method for continuous wall
CN105970916A (en) * 2016-06-30 2016-09-28 中铁十八局集团第五工程有限公司 Construction method for plain concrete underground diaphragm wall of deep foundation pit

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