CN203200745U - Strengthening support of underground diaphragm wall in inverse construction method - Google Patents

Strengthening support of underground diaphragm wall in inverse construction method Download PDF

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Publication number
CN203200745U
CN203200745U CN 201320237002 CN201320237002U CN203200745U CN 203200745 U CN203200745 U CN 203200745U CN 201320237002 CN201320237002 CN 201320237002 CN 201320237002 U CN201320237002 U CN 201320237002U CN 203200745 U CN203200745 U CN 203200745U
Authority
CN
China
Prior art keywords
steel
diaphragm
steel plate
strut
horizontal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320237002
Other languages
Chinese (zh)
Inventor
朱金勇
李亚伟
宋大虎
仲鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Construction Second Engineering Bureau Co Ltd
CSCEC Paul Y Construction Co Ltd
Original Assignee
China Construction Second Engineering Bureau Co Ltd
CSCEC Paul Y Construction Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Construction Second Engineering Bureau Co Ltd, CSCEC Paul Y Construction Co Ltd filed Critical China Construction Second Engineering Bureau Co Ltd
Priority to CN 201320237002 priority Critical patent/CN203200745U/en
Application granted granted Critical
Publication of CN203200745U publication Critical patent/CN203200745U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A strengthening support of an underground diaphragm wall in an inverse construction method comprises a steel inclined strut, wherein the steel inclined strut is arranged between the underground diaphragm wall and a horizontal structural beam and is placed above an earth excavation line. A pre-buried steel plate with an anchor head is arranged inside the underground diaphragm wall in a horizontal pre-burying mode. A steel corbel is welded at the bottom of the horizontal structural beam, and a connecting steel plate is welded on one side, close to the underground diaphragm wall, of the steel corbel. One end of the steel inclined strut and the pre-buried steel plate are in full-length welding, the other end of the steel inclined strut and the connecting steel plate are in full-length welding, and the connecting steel plate and the steel inclined strut are maintained to be vertically connected. The steel inclined strut can be H section steel or joist steel, and the anchor head can be a rebar, is perpendicular to the pre-buried steel plate and is welded with a punch hole of the pre-buried steel plate. The technical problems that a reinforced concrete support between a traditional underground diaphragm wall and a horizontal beam and slab component is numerous in construction procedure, various types of work are used for insertion operations, the labor hours need to be long, the difficulty for disassembling is large, dust pollution can come about easily, and the operation environment is affected are solved.

Description

The reinforcing of diaphragm wall is supported in a kind of reverse construction
Technical field
The utility model relates to a kind of reinforcing of diaphragm wall to be supported, particularly a kind of reinforcing support of using diaphragm wall in reverse construction.
Background technology
At present, in the construction operation of underground building structure, reverse construction adopts the construction technology to underground diaphragm wall " unification of two walls " often, " unification of two walls " namely at Foundation Pit Construction staged construction elder generation diaphragm wall as space enclosing structure, play the purpose of gear soil and sealing, at the exterior wall of the permanent operational phase of structure as the main body basement structure, by effective being connected of setting with main body underground structure inner horizontal beams and slabs, reduce the diaphragm wall horizontal movement, outer wall of underground structure is set no longer in addition.Two walls unifications is as a kind ofly integrating gear soil, sealing, preventing that the space enclosing structure pattern that blends basement structure outer wall has very significant technology and economic effect.
Diaphragm wall generally is to adopt the reinforced concrete support job practices with effective construction operation method of commonly using that is connected of main body underground structure inner horizontal beams and slabs.The construction of reinforced concrete support job practices the time need be built the brace summer bed course, by the assembling reinforcement of normal construction technique, install template, concreting and need to reach design strength and could continue the soil excavation operation.The method advantage is to use when local large tracts of land disappearance appear in agent structure, but its shortcoming is: working procedure is various, and multiple work post is interted operation, requires man-hour longer, and the dismounting difficulty is larger, and easily causes dust pollution, affects operating environment.
The utility model content
The purpose of this utility model provides the reinforcing of diaphragm wall in a kind of reverse construction and supports, the reinforced concrete support working procedure that solves between traditional diaphragm wall and the horizontal beam board member is various, multiple work post is interted operation, require man-hour longer, remove difficulty larger, and easily cause dust pollution, affect the technical problem of operating environment.
For achieving the above object, the utility model adopts following technical scheme:
The reinforcing of diaphragm wall is supported in a kind of reverse construction, comprise the steel diagonal brace, be arranged between diaphragm wall and the horizontal structure beam, soil excavation line top, level is embedded with the pre-embedded steel slab with anchor head in the described diaphragm wall, the bottom of described horizontal structure beam is welded with steel corbel, and described steel corbel is welded with junction steel plate near a side of diaphragm wall;
One end of described steel diagonal brace and described pre-embedded steel slab full weld, the other end and described junction steel plate full weld, described junction steel plate keeps vertical the connection with the steel diagonal brace.
Described steel diagonal brace can be H shaped steel or i iron.
Described anchor head can be reinforcing bar, perpendicular to pre-embedded steel slab and with the pre-embedded steel slab piercing welding.
Compared with prior art the utlity model has following characteristics and beneficial effect:
The utility model provides the reinforcing of diaphragm wall in the reverse construction to support, when foundation ditch strengthening, lateral pressure on the diaphragm wall is transmitted on the horizontal structure beam by reinforce supporting fast, and then passes to column until the basis, be beneficial to the Deformation control of diaphragm wall.
The utility model only needs to be embedded with in the horizontal structure beam construction of having finished the bracket of junction plate, and according to design size embedded board is set in advance at diaphragm wall, the steel diagonal brace can be fixedly welded between the two, and is simple in structure, easy construction; The steel diagonal brace is convenient to be installed and dismounting, saves the duration, has avoided concrete to dig out and a large amount of dust, does not have building waste to be beneficial to environmental protection, can continue the soil excavation operation after the installation, and waste material recoverable after removing is saved cost.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is use view of the present utility model.
Fig. 2 is the structural representation that is welded with the steel diagonal brace on the pre-embedded steel slab.
Fig. 3 is the schematic side view of pre-embedded steel slab.
Reference numeral: 1-diaphragm wall, 2-horizontal structure beam, 3-steel corbel, 4-steel diagonal brace, 5-pre-embedded steel slab, 6-anchor head, 7-junction steel plate, 8-column, 9-soil excavation line.
The specific embodiment
Embodiment is referring to shown in Fig. 1-3, the reinforcing of diaphragm wall is supported in a kind of reverse construction, comprise steel diagonal brace 4, be arranged between diaphragm wall 1 and the horizontal structure beam 2, soil excavation line 9 tops, described diaphragm wall 1 interior level is embedded with the pre-embedded steel slab 5 with anchor head 6, and anchor head described in the present embodiment 6 can be reinforcing bar, perpendicular to pre-embedded steel slab 5 and with pre-embedded steel slab 5 piercing welding, guarantee the force intensity that is subjected to of pre-embedded steel slab 5; The bottom of described horizontal structure beam 2 is welded with steel corbel 3, and described steel corbel 3 is welded with junction steel plate 7 near a side of diaphragm wall.
One end of described steel diagonal brace 4 and described pre-embedded steel slab 5 full welds, the other end and described junction steel plate 7 full welds, described junction steel plate 7 keeps vertical the connection with steel diagonal brace 4.
Described steel diagonal brace 4 is H shaped steel or i iron.Use H shaped steel in this example.
In the utility model anchor head 6 be symmetricly set on the pre-embedded steel slab 5, the both sides of H shaped steel, every side arranges 3.
After the utility model is reinforced and is supported installation, apply prestressing force at steel diagonal brace steel, the construction of steel diagonal brace prestressing should meet following requirement: after reinforcing is supported and installed, should in time check the connection state of each node, can apply prestressing force after affirmation meets the requirements, prestressed applying should be carried out in the synchronous symmetry in the two ends of steel diagonal brace.Prestressing force answers classification to apply, and repeats, and when adding to design load, should again check the situation of each tie point, tackles in case of necessity node and reinforces, and locks behind specified stress stability.
The utility model can make the lateral pressure on the diaphragm wall 1 be transmitted on the horizontal structure beam 2 by reinforce supporting fast, and then passes to column 8 until the basis, is beneficial to the Deformation control of diaphragm wall.

Claims (3)

1. the reinforcing of diaphragm wall is supported in the reverse construction, comprise steel diagonal brace (4), be arranged between diaphragm wall (1) and the horizontal structure beam (2), soil excavation line (9) top, it is characterized in that: the interior level of described diaphragm wall (1) is embedded with the pre-embedded steel slab (5) of band anchor head (6), the bottom of described horizontal structure beam (2) is welded with steel corbel (3), and described steel corbel (3) is welded with junction steel plate (7) near a side of diaphragm wall;
One end of described steel diagonal brace (4) and described pre-embedded steel slab (5) full weld, the other end and described junction steel plate (7) full weld, described junction steel plate (7) keeps vertical the connection with steel diagonal brace (4).
2. the reinforcing of diaphragm wall is supported in a kind of reverse construction according to claim 1, and it is characterized in that: described steel diagonal brace (4) is H shaped steel or i iron.
3. the reinforcing of diaphragm wall is supported in a kind of reverse construction according to claim 1, and it is characterized in that: described anchor head (6) is reinforcing bar, perpendicular to pre-embedded steel slab (5) and with pre-embedded steel slab (5) piercing welding.
CN 201320237002 2013-05-06 2013-05-06 Strengthening support of underground diaphragm wall in inverse construction method Expired - Fee Related CN203200745U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320237002 CN203200745U (en) 2013-05-06 2013-05-06 Strengthening support of underground diaphragm wall in inverse construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320237002 CN203200745U (en) 2013-05-06 2013-05-06 Strengthening support of underground diaphragm wall in inverse construction method

Publications (1)

Publication Number Publication Date
CN203200745U true CN203200745U (en) 2013-09-18

Family

ID=49144869

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320237002 Expired - Fee Related CN203200745U (en) 2013-05-06 2013-05-06 Strengthening support of underground diaphragm wall in inverse construction method

Country Status (1)

Country Link
CN (1) CN203200745U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103614998A (en) * 2013-11-26 2014-03-05 中冶天工集团有限公司 Lining wall concrete placement top-down method based on underground diaphragm wall
CN106436721A (en) * 2016-12-05 2017-02-22 中铁第勘察设计院集团有限公司 Underground diaphragm wall embedded steel enclosing purlin plug system and construction method thereof
CN107386299A (en) * 2017-08-21 2017-11-24 中国二十冶集团有限公司 Foundation ditch supports concrete construction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103614998A (en) * 2013-11-26 2014-03-05 中冶天工集团有限公司 Lining wall concrete placement top-down method based on underground diaphragm wall
CN106436721A (en) * 2016-12-05 2017-02-22 中铁第勘察设计院集团有限公司 Underground diaphragm wall embedded steel enclosing purlin plug system and construction method thereof
CN106436721B (en) * 2016-12-05 2018-12-14 中铁第一勘察设计院集团有限公司 The construction method of diaphram wall built-in type steel purlin plug system
CN107386299A (en) * 2017-08-21 2017-11-24 中国二十冶集团有限公司 Foundation ditch supports concrete construction method

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130918

Termination date: 20150506

EXPY Termination of patent right or utility model