CN209243731U - Facet foundation pit is inverse to make rapid construction device - Google Patents

Facet foundation pit is inverse to make rapid construction device Download PDF

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Publication number
CN209243731U
CN209243731U CN201821682317.8U CN201821682317U CN209243731U CN 209243731 U CN209243731 U CN 209243731U CN 201821682317 U CN201821682317 U CN 201821682317U CN 209243731 U CN209243731 U CN 209243731U
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China
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section
bucket
steel
shield bucket
steel shield
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CN201821682317.8U
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Chinese (zh)
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车东日
朱明�
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Shanghai Urban Construction Design Research Institute Group Co Ltd
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Shanghai Urban Construction Design Research Institute Group Co Ltd
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Abstract

Make rapid construction device the utility model discloses a kind of facet foundation pit is inverse, device includes first segment steel shield bucket the second section steel shield bucket, third section steel protects bucket, section four, steel shield bucket and Section of five steel protect bucket, first segment steel shield bucket the second section steel protects bucket, third section steel protects bucket, section four, steel shield bucket and the successively linear arrangement from top to bottom of Section of five steel shield bucket, the second section steel shield bucket is tightly attached to the inner wall of first segment steel shield bucket, the third section steel shield bucket is tightly attached to the inner wall of the second section steel shield bucket, section four, the steel shield bucket is tightly attached to the inner wall of third section steel shield bucket, section five, the steel shield bucket is tightly attached to the inner wall of Section of four steel shield bucket, notch is provided on the steel shield bucket, receiver section and common section are provided on described Section four and Section of five steel shield bucket.The utility model construction area is small, on surrounding enviroment influence it is small, water-stagnating effect is good, meet underground obstacle easy to clean, easy construction, quickly.

Description

Facet foundation pit is inverse to make rapid construction device
Technical field
Make rapid construction device the utility model relates to facet technical field of construction more particularly to facet foundation pit are inverse.
Background technique
By taking the construction method of the existing facet foundation pit in Yangtze River Delta Area as an example, foundation pit enclosure form is broadly divided into Larsen Steel sheet pile+inner support is gone along with sb. to guard him, the SMW engineering method of fashioned iron cement mixing method is gone along with sb. to guard him and cast-in-situ bored pile+inner support is gone along with sb. to guard him.Wherein SMW engineering method and the form of going along with sb. to guard him of drilled pile are also widely used in push pipe working pit and push pipe reception hole.
Existing form of going along with sb. to guard him has obtained sufficiently reliable verifying on deep pit monitor, and has become for the type foundation pit More conventional building enclosure form.But there is also some of itself to lack for these foundation pit enclosure forms in some special operation conditions Point, such as be difficult to squeeze into when Larsen steel sheet pile chance cobble, sandy gravel stratum or erratic boulder underground obstacle, steel sheet pile squeezes into rear catch sealing It is ineffective, the disadvantages of being affected to periphery when steel sheet pile is extracted.
It is that required construction site is larger that the SMW engineering method of fashioned iron cement mixing method, which goes along with sb. to guard him the problem through being commonly encountered, and equipment is flat Face size just has 7m × 10m or so, Gao Yueyou 20m, and also needs certain equipment rotation and mobile space, although this method After the completion of construction by fashioned iron carried out extract recycle, but the soil body itself mixed and stirred through cement slurry received it is a degree of Soil pollution, and the soil strength after stirring is higher, causes certain difficulty to the construction of the following region Other Engineering.
The SMW engineering method of fashioned iron cement mixing method go along with sb. to guard him also be commonly encountered lower part soil layer be rubble, erratic boulder or when rock without The problems such as method is constructed.
Operating space needed for cast-in-situ bored pile+inner support building enclosure form compares SMW engineering method is relatively small, but drills Stake building enclosure because can not sealing, be often used cooperatively together with rotary churning pile, the shared area of plane is larger, it is unilateral at least 0.6m Drilled pile+0.8m single or double rotary churning pile, width is up to 1.4m to 1.9m or so, and drilled pile will after Practical Completion As permanent barrier, larger obstacle is caused for day rear line and other engineerings.
Top-down construction method in foundation pit construction also through frequently with, but it is most of for set diaphram wall or pile foundation it The inverse form of construction work for making liner afterwards;The steel reinforced concrete dado form of artificial digging pile, the inverse inverse work for making to be steel reinforced concrete dado, is excavated The building enclosure form of the retaining wall of the after-pouring of the 1m range.
Those skilled in the art are dedicated to solving above-mentioned technological deficiency.
Utility model content
In view of the above drawbacks of the prior art, the technical purpose of the utility model is to solve in above-mentioned background technique Existing defect.
To realize the above-mentioned technical purpose, the utility model provides a kind of inverse work of facet foundation pit of the utility model quickly Constructing device, including first segment steel shield bucket, the second section steel shield bucket, third section steel shield bucket, Section of four steel shield bucket and Section of five steel shield Bucket, first segment steel protect bucket, the second section steel shield bucket, third section steel shield bucket, Section of four steel shield bucket and Section of five steel shield bucket from top to bottom Successively linear arrangement, the second section steel shield bucket are tightly attached to the inner wall of first segment steel shield bucket, and the third section steel shield bucket is tightly attached to the Two section steel protect the inner wall of bucket, and Section of four steel shield bucket is tightly attached to the inner wall of third section steel shield bucket, and Section of five steel shield bucket is tight It is affixed on the inner wall of Section of four steel shield bucket, notch is provided on each steel shield bucket, Section of four steel shield bucket and Section of five steel protect equal on bucket It is provided with receiver section and common section, the multi-disc that the receiver section respectively includes heading into position positioned at push pipe with common section is mutually spliced Receiver section section of jurisdiction and remaining position at common section section of jurisdiction, the reception area of Section of four steel shield bucket, which includes that two pieces of left and right is independent, to be held Plate above plate and pluggable board.
Further, the top of steel shield bucket is peripherally uniformly arranged that there are four suspension centres;Slot on any steel shield bucket The quantity of mouth is eight, and the bucket that is located at of the notch is pushed up to more than bucket bottom 20 centimeters.
Further, the outer diameter of the first segment steel shield bucket is 5.575 meters, and internal diameter is 5.525 meters, barrel wall thickness 0.25 Rice, the height of shield bucket are 2 meters;Second section steel protect bucket outer diameter be 5.52 meters, internal diameter be 5.47 meters, 0.25 meter of barrel wall thickness, It is 2 meters that it, which protects bucket height,;The outer diameter of the third section steel shield bucket is 5.465 meters, and internal diameter is 5.415 meters, and barrel wall thickness is 0.25 Rice, shield bucket height is 2 meters;Section four, the outer diameter of the steel shield bucket is 5.41 meters, and internal diameter is 5.34 meters, and barrel wall thickness is 0.35 Rice, shield bucket height is 3 meters;Section five, the outer diameter of the steel shield bucket is 5.205 meters, and internal diameter is 5.155 meters, and a barrel wall thickness is 0.25 meter, shield bucket height is 2.04 meters.
Further, the inner wall upper and lower ends of Section of four steel shield bucket and Section of five steel shield bucket are provided with prestress steel Rope fixed point, the prestressed cable fixed point are connected with prestressed cable.
The utility model has the beneficial effects that
The device of the utility model, construction area is small, small on surrounding enviroment influence, and water-stagnating effect is good, meets underground obstacle Easy to clean, easy construction, quickly.
Detailed description of the invention
Fig. 1 is that the utility model CDR method goes along with sb. to guard him plan view;
Fig. 2 is that the utility model CDR method goes along with sb. to guard him sectional view;
Fig. 3 is the utility model receiver section steel plate socket joint detail drawing;
Fig. 4 is that the utility model steel protects bucket bucket wall construction schematic diagram.
In figure: 1 first steel protects bucket, 2 second steel shield bucket, 3 third steel shield bucket, 4 the 4th steel shield bucket, 5 the 5th steel and protects bucket, 6 slots Mouth, 7 push pipes, 8 suspension centres, 9 prestressed cable fixed points, 10 boards, 11 plates, 12 prestressed cables.
Specific embodiment
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Embodiment:
- Fig. 4 referring to Fig.1, a kind of facet foundation pit of the utility model is inverse to make rapid construction device, including first segment steel shield Bucket 1 second section steel shield bucket 2, third section steel shield bucket 3, Section of four steel shield bucket 4 and Section of five steel protect bucket 5, and the first segment steel protects bucket 1, the second section steel shield bucket 2, third section steel shield bucket 3, Section of four steel shield bucket 4 and Section of five steel shield bucket 5 are successively linear from top to bottom Arrangement, the second section steel shield bucket 2 are tightly attached to the inner wall of first segment steel shield bucket 1, and the third section steel shield bucket 3 is tightly attached to the second section Steel protects the inner wall of bucket 2, and Section of four steel shield bucket 4 is tightly attached to the inner wall of third section steel shield bucket 3, and Section of five steel shield bucket 5 is tight It is affixed on the inner wall of Section of four steel shield bucket 4, notch 6, Section of four steel shield bucket 4 and Section of five steel are provided on each steel shield bucket Receiver section and common section are provided on shield bucket 5, the receiver section and common section respectively include heading into the more of position positioned at push pipe 7 The reception area of the common section section of jurisdiction at receiver section section of jurisdiction and remaining position that piece mutually splices, Section of four steel shield bucket 4 includes left and right The plate 11 of 10 top of two pieces of independent boards 10 and pluggable board.
Further, the top of steel shield bucket is peripherally uniformly arranged that there are four suspension centres 8;
Further, the quantity of notch 6 is eight on any steel shield bucket, and the notch 6 be located at bucket push up to More than bucket bottom 20 centimeters;
Further, the outer diameter of the first segment steel shield bucket 1 is 5.575 meters, and internal diameter is 5.525 meters, barrel wall thickness 0.25 Rice, the height of shield bucket are 2 meters;
Further, the outer diameter of the second section steel shield bucket 2 is 5.52 meters, and internal diameter is 5.47 meters, 0.25 meter of barrel wall thickness, It is 2 meters that it, which protects bucket height,;
Further, the outer diameter of the third section steel shield bucket 3 is 5.465 meters, and internal diameter is 5.415 meters, and a barrel wall thickness is 0.25 meter, shield bucket height is 2 meters;
Further, the outer diameter of Section of four steel shield bucket 4 is 5.41 meters, and internal diameter is 5.34 meters, and barrel wall thickness is 0.35 Rice, shield bucket height is 3 meters;
Further, the outer diameter of Section of five steel shield bucket 5 is 5.205 meters, and internal diameter is 5.155 meters, and a barrel wall thickness is 0.25 meter, shield bucket height is 2.04 meters;
Further, the inner wall upper and lower ends of Section of four steel shield bucket 4 and Section of five steel shield bucket 5 are provided with prestressing force Cable wire fixed point 9, the prestressed cable fixed point 9 are connected with prestressed cable 12.
The facet foundation pit of the utility model is inverse to make rapid constructing method, the specific steps are as follows:
The first step flattens live soil, excavates and changes back-up sand bed course;
Second step, the installation first segment steel protect bucket 1, draw the soil body dug in first segment steel shield bucket 1, and by the first segment Steel shield bucket 1 is sunk down at the absolute altitude of setting;
Third step, when the first segment steel shield bucket 1 sink down into setting absolute altitude at after, lifting the second section steel protect bucket 2, by slot Mouth 6 positions the second section steel of corresponding installation protects bucket 2, equally excavates to the soil body in the second section steel shield bucket 2, and It sinks down into it at absolute altitude of setting, the third section steel then is installed using same method and protects bucket 3;
4th step, when installing Section of four steel shield bucket 4, need the first receiver section of assembled Section of four steel shield bucket 4 and general Arc-shaped plate (plate thickness 15mm) is inserted into two pieces of boards by logical section, receiver section, and in anchor cable fixed point, (anchor cable is fixed after assembly Point: it because steel shield bucket 4 and steel shield bucket 5 are spliced by two or more sections of jurisdiction, needs as the bucket one by wood board splicing Outside sample plus one encloses iron wire and applies prestressing force, prestressing force of this engineering without the same steel wire of application outside of image of Buddha wooden buckt, because This just welds the handle of the semi-circular shape of a diagram every the space of 300mm or ear mouth exists in the place of casing 4 and casing 5 On steel drum, so that steel strand wires can pass through in the handle or ear mouth in casing and then form one for steel shield bucket fixed bit entirety One circle) circular hole in insertion prestressed cable and apply prestressing force, then according to the installation side of first segment steel shield bucket 1 Method is installed;
5th step, the receiver section of the assembled Section of five steel shield bucket 5 and common section, will be inserted into the circular hole of anchor cable fixed point Prestress wire simultaneously applies prestressing force, lifts by crane Section of five steel and protects bucket 5, and Section of five steel shield bucket 5 is pressed receiver hole It (because the top of steel shield bucket 5 is that have push pipe so steel shield bucket 5 is spliced by receiver section section of jurisdiction and common section section of jurisdiction, installs Need to be determined when positioning received push pipe steel shield bucket 5 reception area section of jurisdiction within the scope of) position install, excavate the soil body simultaneously sink;
6th step, push pipe 7 extract Section four of plate before accessing, recycle after-pouring in push pipe head or build internal check Well backfills below the soil body to prestressed cable after it forms setting intensity, continues to be backfilled to after cutting off prestressed cable 12 Next 12 face of prestressed cable cuts off the prestressed cable 12 at backfill face place, is backfilled at the top of every section steel shield bucket to backfill Afterwards, it extracts steel and protects bucket, backfill after extraction to extracting the gap that steel shield bucket generates, recycle Section of four steel shield bucket 4 and the When five section steel protect bucket 5, the shield bucket of common section is first lifted by crane, after the completion of the recycling of the shield bucket of common section, on one side by the shield bucket of receiver section It is extracted upwards on one side to lateral movement;
7th step continues to backfill and extract every section steel shield bucket to ground according to above-mentioned steps.
In the present embodiment, in second step, if first segment steel shield bucket 1 because the resistance of lateral wall is excessively high when can not sink, The artificial method for pushing and hammering is taken to help heavy.
In the present embodiment, in the 4th step, receiver section is inserted into ear mouth after plate is smeared vaseline.
In the present embodiment, in the 6th step, backfill should be layered progress, and guarantee to be not less than 0.90 compactness.
In the present embodiment, in the 6th step, backfilled after backfill is backfilled at the top of every section steel shield bucket using loop wheel machine extraction The steel at place protects bucket, smears the method drag reduction of lubricant before every section steel shield bucket backfill using inner wall.
In the present embodiment, in the 6th step, gap is backfilled with medium coarse sand or tracking grouting after extraction.
The utility model construction area is small, small on surrounding enviroment influence, and water-stagnating effect is good, meets underground obstacle easy to clean, Easy construction, quickly.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain Available technical solution is tested, it all should be within the scope of protection determined by the claims.

Claims (4)

1. a kind of facet foundation pit is inverse to make rapid construction device, which is characterized in that protect bucket (1), the second section steel including first segment steel It protects bucket (2), third section steel shield bucket (3), Section of four steel shield bucket (4) and Section of five steel and protects bucket (5), first segment steel shield bucket (1), Second section steel protects bucket (2), third section steel shield bucket (3), Section of four steel shield bucket (4) and Section of five steel and protects bucket (5) from top to bottom successively Linear arrangement, the second section steel shield bucket (2) are tightly attached to the inner wall of first segment steel shield bucket (1), and the third section steel protects bucket (3) It is tightly attached to the inner wall of the second section steel shield bucket (2), Section of four steel shield bucket (4) is tightly attached to the inner wall of third section steel shield bucket (3), institute The inner wall that Section of five steel shield bucket (5) is tightly attached to Section of four steel shield bucket (4) is stated, is provided with notch (6) on each steel shield bucket, described the Receiver section and common section are provided in four section steel shield bucket (4) and Section of five steel shield bucket (5), the receiver section and common section are distinguished The common section section of jurisdiction at the receiver section section of jurisdiction and remaining position that the multi-disc of position is mutually spliced is headed into including being located at push pipe (7), the The reception area that four section steel protect bucket (4) includes the plate (11) above the two pieces of independent boards (10) in left and right and pluggable board.
2. a kind of facet foundation pit is inverse according to claim 1 makees rapid construction device, it is characterised in that: the top of steel shield bucket It is peripherally uniformly arranged there are four suspension centre (8), the quantity that steel protects notch (6) on bucket is eight, and the notch (6) are located at Bucket is pushed up to more than bucket bottom 20 centimeters.
3. a kind of facet foundation pit is inverse according to claim 1 makees rapid construction device, it is characterised in that: the first segment steel The outer diameter for protecting bucket (1) is 5.575 meters, and internal diameter is 5.525 meters, and 0.25 meter of barrel wall thickness, the height of shield bucket is 2 meters;Described The outer diameter that two section steel protect bucket (2) is 5.52 meters, and internal diameter is 5.47 meters, and 0.25 meter of barrel wall thickness, shield bucket height is 2 meters;It is described The outer diameter that third section steel protects bucket (3) is 5.465 meters, and internal diameter is 5.415 meters, and barrel wall thickness is 0.25 meter, and shield bucket height is 2 Rice;Section four, the outer diameter of steel shield bucket (4) is 5.41 meters, and internal diameter is 5.34 meters, and barrel wall thickness is 0.35 meter, protects bucket height It is 3 meters;Section five, the outer diameter of steel shield bucket (5) is 5.205 meters, and internal diameter is 5.155 meters, and barrel wall thickness is 0.25 meter, shield Bucket height is 2.04 meters.
4. a kind of facet foundation pit is inverse according to claim 1 makees rapid construction device, it is characterised in that: Section of four steel Shield bucket (4) and the inner wall upper and lower ends of Section of five steel shield bucket (5) are provided with prestressed cable fixed point (9), the prestressing force Cable wire fixed point (9) is connected with prestressed cable (12).
CN201821682317.8U 2018-10-17 2018-10-17 Facet foundation pit is inverse to make rapid construction device Active CN209243731U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109208608A (en) * 2018-10-17 2019-01-15 上海市城市建设设计研究总院(集团)有限公司 Facet foundation pit is inverse to make rapid construction devices and methods therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109208608A (en) * 2018-10-17 2019-01-15 上海市城市建设设计研究总院(集团)有限公司 Facet foundation pit is inverse to make rapid construction devices and methods therefor

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