CN211036963U - Cast-in-place and prefabricated underground continuous wall that combines together lead wall - Google Patents

Cast-in-place and prefabricated underground continuous wall that combines together lead wall Download PDF

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Publication number
CN211036963U
CN211036963U CN201921272317.5U CN201921272317U CN211036963U CN 211036963 U CN211036963 U CN 211036963U CN 201921272317 U CN201921272317 U CN 201921272317U CN 211036963 U CN211036963 U CN 211036963U
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China
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cast
place
prefabricated
polylith
concrete
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CN201921272317.5U
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Chinese (zh)
Inventor
张明涛
王建德
杨涛
李振东
杨芹
丁飞
曹新刚
牛刚
曹兵
董金奎
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China Coal No 3 Construction Group Co Ltd
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China Coal No 3 Construction Group Co Ltd
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Abstract

The utility model discloses a cast-in-place and prefabricated underground continuous wall guide wall that combines together, including polylith cast-in-place cement mound, polylith prefabricated baffle and slot, polylith cast-in-place cement mound is cast-in-place by reinforcing bar, shaped steel, concrete, polylith cast-in-place cement mound is according to certain interval mated symmetric distribution in the both sides of slot, a steel sheet on the medium-sized steel of each cast-in-place cement mound is located slot lateral wall department and stretches out from the both sides of corresponding concrete, forms the steel sheet that leaks outward, the both ends of polylith prefabricated baffle are provided with the recess respectively, and correspond respectively to overlap on the steel sheet that leaks outward on the medium-sized; the utility model discloses lead the wall and only carry out formwork and concreting in cement mound department, the amount of work of formwork and concreting is generally not more than the whole cast-in-place 30% of leading the wall of tradition for the construction progress has reduced the amount of labour, and the follow-up engineering amount of demolising the concrete also corresponding greatly reduces, but prefabricated baffle reuse, and the totality cost is lower.

Description

Cast-in-place and prefabricated underground continuous wall that combines together lead wall
Technical Field
The utility model relates to an underground continuous wall technical field that building engineering used specifically is a wall is led to cast-in-place and prefabricated underground continuous wall that combines together.
Background
The underground continuous wall is constructed before forming the groove, the guide wall has ① soil retaining effect, when the groove of the underground continuous wall is excavated, the soil close to the ground surface is unstable and easy to collapse, and the slurry can not play the role of a retaining wall, so the guide wall plays the role of the retaining wall before the groove section of the unit is excavated, ② is used as a measuring reference, specifies the position of the groove, shows the division of the groove section of the unit, and is also used as a reference for measuring the elevation, the verticality and the precision of the excavated groove, ③ is used as a support of a heavy object, is used as a support of a mechanical track of the excavated groove, is also used as a supporting point for placing a steel bar cage, a joint pipe and the like, and sometimes bears the load of other construction equipment, ④ stores the slurry, the guide wall can store the slurry, stabilize the slurry liquid level in the groove, the slurry level is always kept 20cm below the guide wall and is 1.0m higher than the underground water level, and ⑤ stabilizes the groove wall to prevent the leakage of the slurry and prevent the rainwater and other ground water flow.
The guide wall is usually made of cast-in-place concrete with lower reinforcement ratio, and can also be made of prefabricated reinforced concrete structures or fabricated guide walls made of steel structures. Guide walls made of cast-in-place concrete have the following limitations: binding steel bars and a supporting template in the groove, then pouring concrete, wherein the construction period formed by maintenance, initial setting and final setting is long, and the problem that the guide wall is difficult to dismantle after the construction of the subsequent underground continuous wall is finished; the prefabricated guide wall has the following limitations: the integrity is poor, and the construction of the follow-up underground continuous wall is influenced by the uneven deformation easily generated under the construction load disturbance.
Therefore, a novel underground continuous wall guide wall is to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is exactly in order to compensate prior art's defect, provides a wall is led to cast-in-place and prefabricated underground continuous wall that combines together, and it comprises a plurality of cast-in-place cement mounds and a plurality of prefabricated baffle, has that construction cycle is short, a plurality of prefabricated baffle repeatedly usable, follow-up earth that mixes demolish the advantage that engineering volume is little.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
the utility model provides a wall is led to cast-in-place and prefabricated underground continuous wall that combines together, is including the cast-in-place cement mound of polylith, prefabricated baffle of polylith and slot, the cast-in-place cement mound of polylith is formed by reinforcing bar, shaped steel, concrete cast-in-place, the cast-in-place cement mound of polylith is according to the mated symmetric distribution of a determining deviation in the both sides of slot, a steel sheet on the medium-sized steel of every cast-in-place cement mound is located slot lateral wall department and stretches out from the both sides of corresponding concrete, forms outer steel sheet that leaks, the both ends of the prefabricated baffle of polylith are provided with the recess respectively to correspond respectively.
Preferably, the plurality of prefabricated baffles are all made of reinforced concrete or steel plates.
Preferably, the side surfaces of the prefabricated baffles along the inner wall of the groove are flush with the side surfaces of the outer leakage steel plates on the cast-in-place cement pier.
Preferably, the lengths of the prefabricated baffles are slightly smaller than the distance between the concrete side walls of two adjacent cast-in-place cement piers.
Preferably, the lengths of the grooves on the prefabricated baffles are slightly greater than the length of the part, which is exposed out of the corresponding concrete, of the external exposure steel plate on the section steel in the cast-in-situ cement piers.
Preferably, the height of the guide wall formed by the cast-in-place cement piers and the prefabricated baffles is integral multiple of the height of each prefabricated baffle.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the integral stability of the guide wall is controlled by the cast-in-place cement pier, the stability of the guide wall can meet the construction requirements only by proper design, the follow-up deformation of the guide wall is small, and the limitation that the traditional integral assembly type guide wall is over large in deformation is overcome.
(2) The formwork supporting and the concrete pouring are only carried out at the cement pier, the work amount of the formwork supporting and the concrete pouring is generally not more than 30% of that of the traditional integral cast-in-place guide wall, the construction progress is accelerated, the labor amount is reduced, the work amount for subsequently removing the concrete is correspondingly and greatly reduced, and the overall cost is lower.
(3) The side wall of the groove is constructed by the prefabricated baffle between the adjacent cast-in-place cement piers, the prefabricated baffle can be repeatedly used, and the overall cost is low.
(4) The length of the prefabricated baffle is slightly less than the distance between two adjacent concrete side walls of the adjacent cast-in-place cement piers, the telescopic deformation requirement of the prefabricated baffle is met, and therefore the guide wall does not need to be provided with deformation joints (expansion joints).
Drawings
Fig. 1 is a top view of the wall of the present invention.
Fig. 2 is a three-dimensional schematic view of the wall of the present invention.
Fig. 3 is a partial enlarged view of the wall of the present invention.
Fig. 4 is a schematic diagram of a prefabricated baffle plate.
FIG. 5 is a second schematic view of a prefabricated baffle.
Fig. 6 is a schematic view of the construction steps of the wall of the present invention.
Description of reference numerals: 1. a plurality of cast-in-place cement piers; 2. prefabricating a baffle; 3. an outer leak steel plate; 4. a groove; 5. and (4) a groove.
Detailed Description
Referring to the drawings:
a cast-in-place and prefabrication combined underground diaphragm wall guide wall comprises a plurality of cast-in-place cement piers 1, a plurality of prefabricated baffles 2 and a groove 5, wherein the cast-in-place cement piers 1 are formed by casting reinforcing steel bars, section steel and concrete in a cast-in-place mode, the cast-in-place cement piers 1 are symmetrically distributed on two sides of the groove 5 in pairs at certain intervals, one steel plate on each cast-in-place cement pier medium steel is positioned at the side wall of the groove 5 and extends out from two sides of corresponding concrete to form an outer leakage steel plate 3, two ends of the prefabricated baffles 2 are respectively provided with a groove 4 and respectively and correspondingly abut against the outer leakage steel plates 3 on two adjacent cast-in-place cement pier medium steels, the prefabricated baffles 2 are made of reinforced concrete or steel plates, the side surfaces of the outer leakage steel plates 3 on the cast-in-place cement piers 1 are flush, and, the length of the grooves 4 on the prefabricated baffles 2 is slightly larger than the length of the part of the middle-sized steel of the cast-in-situ cement piers 1, which is exposed out of the corresponding concrete, of the exposed steel plate 3, and the height of the guide wall consisting of the cast-in-situ cement piers 1 and the prefabricated baffles 2 is integral multiple of the height of each prefabricated baffle.
Fig. 1-3 show the structure of the guide wall, a plurality of cast-in-situ cement piers 1 are cast in situ by steel bars, section steel and concrete, wherein the main reinforcement in the reinforcing steel bar needs to be fixedly connected with the section steel, the whole stress capacity is improved, a plurality of holes are arranged on the section steel for the main reinforcement to pass through, or make the main muscle link to each other with shaped steel through the welding, the length of the prefabricated baffle of polylith 2 slightly is lighter than the distance of the adjacent concrete lateral wall of two adjacent cast-in-place cement mounds, the length of the prefabricated baffle of polylith 2 upper groove 4 slightly is greater than the length that steel sheet leaked in concrete one side on the shaped steel, the wall depth of leading is the integral multiple of the prefabricated baffle of polylith 2 height, the prefabricated baffle of polylith 2 is as shown in figure 4 and 5, the length of the prefabricated baffle of polylith 2 slightly is lighter than the distance of the adjacent concrete lateral wall of two adjacent cast-in-place cement mounds 1, satisfy the flexible deformation needs of the prefabricated baffle of polylith 2, so.
The utility model discloses a construction method, the detailed description is as follows:
(1) leveling the site, and carrying out tee joint leveling on the construction site to meet the construction requirement;
(2) measuring and paying off, namely measuring and positioning a plurality of cast-in-situ cement piers 1 and grooves 5 on site according to a construction drawing, and paying off by using lime powder;
(3) excavating earthwork at each cast-in-place cement pier, and leveling the side wall of the groove body;
in the step, only earthwork at the positions of a plurality of cast-in-place cement piers 1 is excavated, earthwork at the positions of the grooves 5 is not excavated temporarily, and the volume and the strength of the plurality of cast-in-place cement piers 1 are large enough to bear soil pressure transmitted by a plurality of adjacent prefabricated baffles 2 without deformation and displacement.
(4) Binding profile steel and reinforcing steel bars in a plurality of cast-in-place cement pier 1 groove bodies, wherein the reinforcing steel bars need to be welded or connected with the profile steel in a penetrating way, and an outer leakage steel plate 3 on the profile steel needs to be accurately positioned on the side wall of a groove 5;
in the step, the outer leakage steel plate 3 on the section steel needs to be accurately positioned, and various auxiliary methods can be used for fixing and limiting the outer leakage steel plate 3.
(5) A plurality of cast-in-situ cement piers 1 are erected, and templates between two side walls of a groove 5 need to be supported and fixed;
in order to prevent the soil body behind the cast-in-place concrete pier 1 from loosening, a formwork is not needed on one side of the cast-in-place concrete pier 1 away from the groove 5, the concrete is directly poured by taking the soil wall as a side formwork, and the other three sides need to be supported by the formwork.
(6) Pouring concrete at the cement pier 1 on a plurality of cast-in-place concrete blocks, vibrating and tamping the concrete blocks, and maintaining the concrete blocks;
(7) excavating earthwork at other positions of the groove 5, and leveling the side wall of the groove body of the groove 5;
(8) removing a plurality of templates at the cast-in-situ cement pier 1;
(9) a plurality of prefabricated baffles 2 prefabricated in advance are flatly overlapped and assembled between the outer leakage steel plates 3 of two adjacent cast-in-place cement piers to form two side walls of a groove 5;
(10) backfilling soil outside the prefabricated baffles 2, and rolling and compacting, wherein the height of the backfilled soil is slightly less than the height of the upper surfaces of the prefabricated baffles 2 at the uppermost part;
for subsequent convenience in dismantling, a layer of non-cohesive soil such as medium sand and coarse sand with a relatively small thickness can be filled at the position close to the side walls of the prefabricated baffles 2, so that the backfill soil and the prefabricated baffles 2 are not bonded with each other.
(11) And gravel is paved or plain concrete is poured between the adjacent cast-in-place cement piers to form a smooth construction channel, so that the construction equipment can be conveniently moved around the guide wall.
The above-mentioned step 7 and step 8 can be synchronously implemented, and its construction process is shown in figure 6.
The integral stability of the wall that provides is controlled by polylith cast-in-place cement mound 1, as long as the stability ability who designs properly to lead the wall satisfies the construction requirement, and lead the follow-up deformation of wall little, the too big limitation that warp of traditional unit-installment guide wall has been overcome, only carry out formwork and concreting in cement mound department, the amount of work of formwork and concreting is generally not more than the 30% of traditional unit-installment guide wall, the construction progress has been accelerated, and the subsequent engineering volume of demolising the concrete also correspondingly reduces greatly, construct the lateral wall of slot 5 with polylith prefabricated baffle 2 between two adjacent cast-in-place cement mounds, polylith prefabricated baffle 2 reuse, the whole expense is low.
The attached drawings only show the partial shape and partial connection mode of the underground continuous wall guide wall combining cast-in-place and prefabrication, according to the proposed idea, the shapes and overlapping modes of a plurality of cast-in-place cement piers 1 and a plurality of prefabricated baffles 2 can be changed to form other related types of partially cast-in-place and partially prefabricated underground continuous wall guide walls, which all belong to equivalent modification and change of the technology, and are not described again here.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the field, without departing from the basic technical idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.

Claims (6)

1. The utility model provides a wall is led to cast-in-place underground continuous wall that combines together with prefabrication which characterized in that: including cast-in-place cement mound of polylith, prefabricated baffle of polylith and slot, cast-in-place cement mound of polylith is formed by reinforcing bar, shaped steel, concrete cast-in-place, cast-in-place cement mound of polylith is according to the mated symmetric distribution of a determining deviation in the both sides of slot, a steel sheet on the medium-sized steel of every cast-in-place cement mound is located slot lateral wall department and stretch out from the both sides of corresponding concrete, form outer steel sheet that leaks, the both ends of the prefabricated baffle of polylith are provided with the recess respectively to correspond respectively and take on the outer steel sheet that leaks on the medium-sized.
2. A cast-in-place and precast combined underground diaphragm wall guide wall according to claim 1, which is characterized in that: the prefabricated baffles are all made of reinforced concrete or steel plates.
3. A cast-in-place and precast combined underground diaphragm wall guide wall according to claim 1, which is characterized in that: and the side surfaces of the plurality of prefabricated baffles along the inner wall of the groove are flush with the side surfaces of the outer leakage steel plates on the plurality of pieces of cast-in-situ cement pier medium-sized steel.
4. A cast-in-place and precast combined underground diaphragm wall guide wall according to claim 1, which is characterized in that: the lengths of the prefabricated baffles are slightly smaller than the distance between the concrete side walls of the two adjacent cast-in-place cement piers.
5. A cast-in-place and precast combined underground diaphragm wall guide wall according to claim 1, which is characterized in that: the lengths of the grooves on the prefabricated baffles are slightly larger than the length of the part, leaking out of the steel plates on the section steel, of the cast-in-place cement piers, leaking out of the corresponding concrete.
6. A cast-in-place and precast combined underground diaphragm wall guide wall according to claim 1, which is characterized in that: the height of the guide wall formed by the cast-in-place cement piers and the prefabricated baffles is integral multiple of the height of each prefabricated baffle.
CN201921272317.5U 2019-08-07 2019-08-07 Cast-in-place and prefabricated underground continuous wall that combines together lead wall Active CN211036963U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921272317.5U CN211036963U (en) 2019-08-07 2019-08-07 Cast-in-place and prefabricated underground continuous wall that combines together lead wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921272317.5U CN211036963U (en) 2019-08-07 2019-08-07 Cast-in-place and prefabricated underground continuous wall that combines together lead wall

Publications (1)

Publication Number Publication Date
CN211036963U true CN211036963U (en) 2020-07-17

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Country Status (1)

Country Link
CN (1) CN211036963U (en)

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