CN203334270U - Mountable buried type prefabricated hollow underground diaphragm wall - Google Patents

Mountable buried type prefabricated hollow underground diaphragm wall Download PDF

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Publication number
CN203334270U
CN203334270U CN2013203711398U CN201320371139U CN203334270U CN 203334270 U CN203334270 U CN 203334270U CN 2013203711398 U CN2013203711398 U CN 2013203711398U CN 201320371139 U CN201320371139 U CN 201320371139U CN 203334270 U CN203334270 U CN 203334270U
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CN
China
Prior art keywords
coupling assembling
tenon
steel plate
groove
assembles
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
CN2013203711398U
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Chinese (zh)
Inventor
耿冬青
马庆松
白晨光
油新华
宋福渊
秦会来
赖永标
胡贺祥
郭恒
马程昊
许国光
张伟
杨春英
张清林
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China State Construction Engineering Corp Ltd
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China State Construction Engineering Corp Ltd
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Priority to CN2013203711398U priority Critical patent/CN203334270U/en
Application granted granted Critical
Publication of CN203334270U publication Critical patent/CN203334270U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a mountable buried type prefabricated hollow underground diaphragm wall which is formed by a plurality of wall units in a spliced mode. Each wall unit comprises a wall unit body, an upper connecting assembly and a lower connecting assembly, the wall unit bodies are hollow blocks, a tenon is arranged on the left lateral side of each wall unit body, the transverse end face of each tenon is in a rectangular shape, the side wall of each rectangular shape protrudes outwards, and a groove is formed in the right lateral side of each wall unit body. Each upper connecting assembly is composed of an opening groove body in the right side, a base plate and two L-type connecting blocks, wherein the transverse end face of each opening groove body in the right side is the same as that of each wall unit body, each opening groove body is defined by connecting steel plates with bolt holes, the opening position of each opening groove body is connected with the two L-type connecting blocks in an inserted mode, the heights of the L-type connecting blocks are half of the heights of the connecting steel plates, the base plates are arranged at the top faces of the connecting steel plates and protrude out of the outer edges of the connecting steel plates, and main wall ribs are welded on each base plate. The structures and the shapes of the lower connecting assemblies are completely the same as the structures and the shapes of the upper connecting assemblies, and after the lower connecting assemblies and the upper connecting assemblies are connected in an inserted mode, up-and-down splicing of the wall units is achieved through bolts. The mountable buried type prefabricated hollow underground diaphragm wall has the advantages that the construction period is shortened, the construction quality is improved, and the construction accident probability is reduced.

Description

A kind of flush type precast hollow diaphragm wall that assembles
Technical field
The utility model relates to a kind of diaphragm wall, particularly a kind of prefabricated diaphragm wall.
Background technology
Along with improving constantly of economic develop rapidly and the urbanization level, urban issues becomes increasingly conspicuous, as densely populated, congested in traffic, resource exhaustion, can utilize that area is not enough, land price is surging etc.Utilizing underground space configuration urban infrastructure is the effective way that fundamentally solves issues about the cities' development.What at present, underground space space enclosing structure was the most frequently used is diaphragm wall.
And the form of structure of diaphragm wall is generally the Cast-in-situs type diaphragm wall, because the Cast-in-situs type diaphragm wall is poured under water, inevitably there are following defect and disadvantage:
One, wait for that concrete setting causes claim for eot
Cast-in-place diaphragm wall is as underground large-sized concrete supporting and protection structure, soil excavation can further be constructed after need to waiting for the diaphragm wall concrete setting and reaching some strength, and the urban underground space construction requirements is tried one's best the reduction of erection time, cast-in-place ground-connecting-wall does not obviously meet the rapid construction requirement that urban underground space is built.
While two, building, quality is difficult for guaranteeing
During the underwater casting of ground-connecting-wall, concrete easily presss from both sides mud, is stained with mud during descending reinforcing cage on reinforcing bar, reduces the concrete reinforcement bond stress, wall body difficult quality guarantee, and easily cause the random infiltration of metope, this is a cast-in-place ground-connecting-wall insurmountable difficult problem always.
Three, in soft stratum, degree of plainness for wall surface is wayward
When soil layer weakness or layer of sand, if mud conditioning is improper, there is the problem of caving in cell wall, and commonly metope has the evagination phenomenon, and degree of plainness for wall surface is difficult to the problems such as control.
The utility model content
The purpose of this utility model is to provide a kind of flush type precast hollow diaphragm wall that assembles, and solve the existing cast-in-place construction of diaphragm wall cycle long, the technical problem that construction quality can't guarantee.
For achieving the above object, the utility model adopts following technical scheme:
A kind of flush type precast hollow diaphragm wall that assembles, by several wall elements, be spliced, described wall element comprises the wall element body, upper coupling assembling and lower coupling assembling, described wall element body is cavity block, its left surface is with tenon, the rectangle that the horizontal end face of described tenon is the sidewall evagination, right flank is groove, described tenon and groove topography are mated fully, both peg graft and form the tongue and groove connection, described upper coupling assembling is by the right openings cell body identical with the horizontal end face of wall element body, backing plate and two L-type contiguous blocks form, described opening cell body is surrounded by the junction steel plate with keyhole, its opening part and the socket connection of two L-type contiguous blocks, the height of described L-type contiguous block is half of junction steel plate height, described backing plate is arranged on the junction steel plate end face, and outstanding junction steel plate outer, be welded with body of wall master muscle on it, described lower coupling assembling and upper connecting component structure and shape are identical, the opening cell body of lower coupling assembling is less than the opening cell body width of upper coupling assembling, realize the splicing up and down of wall element after both grafting by bolt.
Be arranged at intervals with floor between described junction steel plate.
The equal correspondence in the end face of described wall element body and bottom surface has loss of weight double blinding hole.
Described tenon is close to the waterproof strip of paper used for sealing that its periphery is provided with water-swellable.
Described wall element body side is provided with Grouting Pipe near bottom or tip position correspondence.
Described wall element body side is preset with hoisting ring.
Compared with prior art the utlity model has following characteristics and beneficial effect:
(1) the utility model in level when connecting, for tongue and groove connects, groove and tenon agree with fully, realize seamless link, guarantee the safety of jointing, simultaneously, at link position, use the measure of waterproof strip of paper used for sealing joint, guarantee the reliability of joint waterproofing, reduce the prominent mud accident occurrence probability of gushing water in Excavation Process.Can effectively improve construction of diaphragm wall efficiency, reduce the duration of a project.
(2) in the utility model, wall element is set to hollowly, the body of wall lengthways main steel bar is arranged on the backing plate of coupling assembling, thereby reduces the construction hoisting difficulty, improves efficiency of construction.
(3) prefabricated ground-connecting-wall wall panel element and coupling assembling described in the utility model all can, prefabricated the processing of factory's batch, can be realized the wall leveling degree is reliably controlled, thereby promote workmanship.
(4) various ground-connecting-wall flat shapes can realize by the working special-shaped ground-connecting-wall that is prefabricated in the factory, and do not need the measure of other design specialized groove end joint, and the scope of application is extremely wide.
(5) the utility model is the prefabricated diaphragm wall of flush type, by measures such as bottom slip castings, can strengthen the body of wall vertical bearing capacity, can be used as underground space enclosed structure and basement interior wall and uses, and reaches the application target of two wall unifications.
(6) by loss of weight double blinding hole is set, reduce the weight of prefabricated diaphragm wall, reduce concrete use amount.
The utility model can be widely used in underground exterior-protected structure or basement interior wall.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is the wall connecting schematic diagram.
Fig. 2 is Fig. 1 top view.
Fig. 3 is the schematic cross-section that the waterproof strip of paper used for sealing encloses.
Fig. 4 is linkage unit schematic diagram on body of wall.
Fig. 5 is linkage unit schematic diagram under body of wall.
Fig. 6 is the coupling assembling detail drawing.
Reference numeral: 1-wall element body, 2-tenon, 3-groove, 4-keyhole, 5-loss of weight double blinding hole, 6-body of wall master muscle, 7-waterproof strip of paper used for sealing, 8-hoisting ring, 9-junction steel plate, 10-floor, 11-backing plate, 12-L type contiguous block, 13-Grouting Pipe.
The specific embodiment
Embodiment is referring to shown in Fig. 1 to Fig. 5, a kind of flush type precast hollow diaphragm wall that assembles, by several wall elements, be spliced, described wall element comprises wall element body 1, upper coupling assembling and lower coupling assembling, described wall element body 1 is cavity block, its left surface is with tenon 2, the rectangle that the horizontal end face of described tenon 2 is the sidewall evagination, right flank is groove, described tenon and groove topography are mated fully, both peg graft and form the tongue and groove connection, described upper coupling assembling is by the right openings cell body identical with the horizontal end face of wall element body 1, backing plate 11 and two L-type contiguous blocks 12 form, described opening cell body is surrounded by the junction steel plate 9 with keyhole, its opening part and two L-type contiguous block 12 socket connections, the height of described L-type contiguous block 12 is half of junction steel plate 9 height, described backing plate 11 is arranged on junction steel plate 9 end faces, and outstanding junction steel plate 9 outers, be welded with body of wall master muscle 6 on it, described lower coupling assembling and upper connecting component structure and shape are identical, the opening cell body of lower coupling assembling is less than the opening cell body width of upper coupling assembling, realize the splicing up and down of wall element after both grafting by bolt.
Be arranged at intervals with floor 10 between described junction steel plate 9.
The equal correspondence in the end face of described wall element body 1 and bottom surface has loss of weight double blinding hole 5.
Described tenon 2 is close to the waterproof strip of paper used for sealing 7 that its periphery is provided with water-swellable.
Described wall element body side is provided with Grouting Pipe 13 near bottom or tip position correspondence.
Described wall element body side is preset with hoisting ring 8.
Described job practices of assembling flush type precast hollow diaphragm wall, it is characterized in that: step is as follows:
The first, use template precast wall body cell body 1 and coupling assembling at precasting yard, and the steel member exposed is done to antirust processing;
The second, prefabricated wall element body 1 and the coupling assembling completed is transported to construction plant; Guarantee in transportation that prefabricated panel is injury-free, can use carriage and steel-wire fastener to fix in case of necessity;
The 3rd, use grab bucket or other groovers fluting, slotting length and width are slightly larger than single width ground-connecting-wall length and width;
The 4th, use crane by the wall element of the formation of hoisting ring first group of wall element body 1 of 8 liftings and coupling assembling and transfer to groove, extract mud in decentralization process simultaneously out and guarantee certain mud level from groove 3, until, after the steel member default with ground is connected by steel pipe by hoisting ring 8, decontrols crane rope and be connected with hoisting ring 8;
The 5th, use crane by the wall element of hoisting ring second group of wall element body 1 of 8 liftings and coupling assembling and transfer to groove, extract mud in decentralization process simultaneously out and guarantee certain mud level from groove 3, until the coupling assembling of second group of wall element inserts in the coupling assembling of first group of wall element;
The 6th, connect the Grouting Pipe 13 of first group of wall element and second group of wall element, and use high-strength bolt to fix the junction steel plate of first group of wall element and second group of wall element and weld upper and lower L-type contiguous block 12, implement waterproof measure in junction;
The 7th, after the construction of junction, crane will connect into first group of whole wall element and the first width ground-connecting-wall of conduct of second group of wall element is transferred until design height keeps prefabricated ground-connecting-wall verticality by the spirit level be fixed on prefabricated ground-connecting-wall in decentralization process;
The 8th, use grab bucket or other groovers to be close to first width ground-connecting-wall fluting in first width ground-connecting-wall groove direction, slotting length and width are slightly larger than length and the width of single width ground-connecting-wall;
The 9th, use crane to lift the 3rd group of wall element by hoisting ring, will in the groove 3 of first group of wall element of the tenon of the 3rd group of wall element 2 insertions, transfer, and more than repeating, fourth, fifth, six, seven steps complete the second width ground-connecting-wall construction;
The tenth, after the peripheral disturbed soil intensity of the complete and body of wall of construction of diaphragm wall is recovered, by Grouting Pipe 13, implement bodies of wall bottom slip castings;
The 11, repeat above step, until complete the ground-connecting-wall integral construction.
Above-mentioned construction, construct and to corner, can use the bight abnormal shape can assemble the hollow diaphragm wall of flush type to realize the construction of prefabricated ground-connecting-wall.

Claims (6)

1. one kind can be assembled flush type precast hollow diaphragm wall, it is characterized in that: by several wall elements, be spliced, described wall element comprises wall element body (1), upper coupling assembling and lower coupling assembling, described wall element body (1) is cavity block, its left surface is with tenon (2), the rectangle that the horizontal end face of described tenon (2) is the sidewall evagination, right flank is groove, described tenon and groove topography are mated fully, both peg graft and form the tongue and groove connection, described upper coupling assembling is by the right openings cell body identical with the horizontal end face of wall element body (1), backing plate (11) and two L-type contiguous blocks (12) form, described opening cell body is surrounded by the junction steel plate (9) of band keyhole (4), its opening part and two L-type contiguous blocks (12) socket connection, the height of described L-type contiguous block (12) is half of junction steel plate (9) height, described backing plate (11) is arranged on junction steel plate (9) end face, and outstanding junction steel plate (9) outer, be welded with body of wall master muscle (6) on it, described lower coupling assembling and upper connecting component structure and shape are identical, the opening cell body of lower coupling assembling is less than the opening cell body width of upper coupling assembling, realize the splicing up and down of wall element after both grafting by bolt.
2. the flush type precast hollow diaphragm wall that assembles according to claim 1, is characterized in that: be arranged at intervals with floor (10) between described junction steel plate (9).
3. the flush type precast hollow diaphragm wall that assembles according to claim 1, it is characterized in that: the equal correspondence of the end face of described wall element body (1) and bottom surface has loss of weight double blinding hole (5).
4. the flush type precast hollow diaphragm wall that assembles according to claim 1, it is characterized in that: described tenon (2) is close to the waterproof strip of paper used for sealing (7) that its periphery is provided with water-swellable.
5. the flush type precast hollow diaphragm wall that assembles according to claim 1 is characterized in that: described wall element body side is provided with Grouting Pipe (13) near bottom or tip position correspondence.
6. the flush type precast hollow diaphragm wall that assembles according to claim 1, it is characterized in that: described wall element body side is preset with hoisting ring (8).
CN2013203711398U 2013-06-26 2013-06-26 Mountable buried type prefabricated hollow underground diaphragm wall Expired - Fee Related CN203334270U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203711398U CN203334270U (en) 2013-06-26 2013-06-26 Mountable buried type prefabricated hollow underground diaphragm wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203711398U CN203334270U (en) 2013-06-26 2013-06-26 Mountable buried type prefabricated hollow underground diaphragm wall

Publications (1)

Publication Number Publication Date
CN203334270U true CN203334270U (en) 2013-12-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103334422A (en) * 2013-06-26 2013-10-02 中国建筑股份有限公司 Assembled embedded type prefabricated hollow underground continuous wall and construction method thereof
CN105442614A (en) * 2015-11-19 2016-03-30 浙江桐砚建筑规划设计有限公司 Construction method for foundation pit support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103334422A (en) * 2013-06-26 2013-10-02 中国建筑股份有限公司 Assembled embedded type prefabricated hollow underground continuous wall and construction method thereof
CN103334422B (en) * 2013-06-26 2015-07-15 中国建筑股份有限公司 Assembled embedded type prefabricated hollow underground continuous wall and construction method thereof
CN105442614A (en) * 2015-11-19 2016-03-30 浙江桐砚建筑规划设计有限公司 Construction method for foundation pit support

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

Granted publication date: 20131211

Termination date: 20170626