CN105064379B - H-shaped steel foundation pit supporting device and method - Google Patents
H-shaped steel foundation pit supporting device and method Download PDFInfo
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- CN105064379B CN105064379B CN201510538913.3A CN201510538913A CN105064379B CN 105064379 B CN105064379 B CN 105064379B CN 201510538913 A CN201510538913 A CN 201510538913A CN 105064379 B CN105064379 B CN 105064379B
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Abstract
The invention provides an H-shaped steel foundation pit supporting device and method, and belongs to the field of building engineering construction. The device and method are mainly used for supporting of building construction deep foundation pit excavation. The device integrates the advantages of section-steel piles and steel plate piles, is large in supporting depth, short in construction cycle and capable of being repeatedly used, and has a water stop function. According to the H-shaped steel foundation pit supporting device and method, a plurality of H-shaped steel piles are driven or pressed from the ground to an underground designed elevation one by one through a pile driver or a pile pressing-in machine according to a design requirement; sectional steel plate piles are pressed between the pile bodies of every two H-shaped steel piles through a press pile device, and therefore a first section foundation pit support is formed; earthwork in a first depth is dug in the first section foundation pit support, and second sectional steel plate piles continue to be pressed between the pile bodies of every two piles, and earthwork in a second depth continues to be dug; construction is conducted in this way circularly till foundation pit supporting is completed; and the second sectional steel plate piles and pulling-out piles are sequentially pulled out, and thus a supporting system is disassembled.
Description
Technical field
Present invention is mainly used for construction deep pit digging supporting uses, belong to building engineering construction field.
Background technology
Steel sheet pile and Section-steel Piles respectively have its pluses and minuses as existing multiple material handling method of deep foundation pit, although steel sheet pile has sealing work(
Can, short construction period, but run into boulder or cobble interlayer then cannot be squeezed into, applicable stratum is limited, and driving depth is limited；Shaped steel
Stake is easily squeezed into, and can penetrate cobble interlayer, and driving depth is big, repeats and utilizes, short construction period, but does not have water stopping function.
Content of the invention
Instant invention overcomes the shortcoming of above two method for supporting deep foundation pit, it combines the excellent of Section-steel Piles and steel sheet pile
Point, supporting depth is big, short construction period, repeats and utilizes, and low cost has water stopping function again.It is by piling machine or pile press machine
Multiple H profile steel stakes of the present invention are squeezed into from ground one by one by design requirement or is pressed into subterranean designation absolute altitude, then respectively every
It is pressed into merogenesis steel sheet pile with pile compacting equipment between the pile body of two H profile steel stakes, form first paragraph pattern foundation pit supporting structure, merogenesis steel sheet pile
General 5 to 6 meters of length, can meet the requirement of general pile press machine piling ability, excavate first paragraph deep in first paragraph pattern foundation pit supporting structure
The earthwork of degree, continues to be pressed into second section merogenesis steel sheet pile between the pile body of each two stake, continues to excavate the second segment earthwork, so
Circulation construction is until complete pattern foundation pit supporting structure；Extract merogenesis steel sheet pile successively, extract stake, support system is removed and completed.
The present invention is mainly made up of H profile steel stake, merogenesis steel sheet pile, baffle plate, Squeezing Soil Pile；Baffle plate is welded on the abdomen of H profile steel stake
On plate, be all related plate and coattail board in the left and right two ends of merogenesis steel sheet pile, and there is U-lag the upper end of merogenesis steel sheet pile, and Squeezing Soil Pile has
Pile crown；The contact plate of merogenesis steel sheet pile and coattail board insert between the adjacent lower flange of H profile steel stake and baffle plate respectively, Squeezing Soil Pile
In space between the lower flange of press-in H profile steel stake and baffle plate, U-lag is built with sealing rod, the lower end of upper section merogenesis steel sheet pile
In the U-lag of insertion lower section merogenesis steel sheet pile.Need explanation：It is designed with junction button, by merogenesis steel up and down between section merogenesis steel sheet pile
Sheet pile is contacted, and lower section merogenesis steel sheet pile can be driven to extract by upper section merogenesis steel sheet pile during pile pulling.
Brief description
Description of reference numerals：1-H Section-steel Piles, 2- merogenesis steel sheet pile, 3- baffle plate, 4- Squeezing Soil Pile, 5- contact plate, 6- swallow
Tailgate, 7-U shape groove, 8- sealing rod, 9- pile crown, the soil layer of 10- gear soil.
Fig. 1 is the horizontal sectional drawing of one supporting unit of the present invention.
Fig. 2 is the horizontal sectional drawing of two supporting units of the present invention.
Fig. 3 is that H profile steel stake of the present invention is connected drawing with merogenesis steel sheet pile.
Fig. 4 is the socket joint drawing up and down of merogenesis steel sheet pile of the present invention.
Fig. 5 is the vertical cross section drawing of the pile crown of Squeezing Soil Pile of the present invention.
Specific embodiment
The specific embodiment of the present invention is described below in conjunction with the accompanying drawings
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, first squeeze into one by one by deep basal pit layout design sideline on smooth place
Or it is pressed into H profile steel stake 1 of the present invention to designed elevation, such as hard boulder, when H profile steel stake 1 is difficult to squeeze into, boulder can be avoided and beat
Enter, then by the contact plate 5 at the left and right two ends of first segment merogenesis steel sheet pile 2 and dovetail between the pile body of each two H profile steel stake 1
Plate 6 inserts between the adjacent lower flange of H profile steel stake 1 and baffle plate 3 respectively, is pressed into first segment merogenesis steel sheet pile 2 with pile compacting equipment,
Form first paragraph pattern foundation pit supporting structure, need explanation：If certain two H profile steel stake 1 changes due to running into boulder spacing, this punishment need to be adjusted
The width of section steel sheet pile 2；Excavate in the range of first paragraph pattern foundation pit supporting structure and complete the earthwork of first construction section, general 5 to 6 meters
Depth is a construction section, and the pile body of H profile steel stake 1 and first paragraph merogenesis steel sheet pile 2 expose outside soil layer in first construction section,
Sealing rod 8 is installed in the U-lag 7 of first segment merogenesis steel sheet pile 2, first segment is inserted in the lower end of second section merogenesis steel sheet pile 2
In the U-lag 7 of merogenesis steel sheet pile 2, simultaneously by the contact plate 5 at second section merogenesis steel sheet pile 2 about two ends and coattail board 6 difference
Insert between the adjacent lower flange of H profile steel stake 1 and baffle plate 3, be pressed into second section merogenesis steel sheet pile 2 with pile compacting equipment, form the
Two-stage nitration pattern foundation pit supporting structure, then excavate second section soil layer, so circulation completes remaining each section pattern foundation pit supporting structure, and support system is substantially complete
Become；Due to all there is clipping room between the contact plate 5 of merogenesis steel sheet pile 2 and the lower flange of coattail board 6 and H profile steel stake 1 and baffle plate 3
Gap, although have natural soil during piling, but if groundwater pressure is very in the space between the lower flange of H profile steel stake 1 and baffle plate 3
Height, subsurface pressure water can flow out along the gap between the lower flange of contact plate 5 and coattail board 6 and H profile steel stake 1 and baffle plate 3, this
When need Squeezing Soil Pile 4 is pressed in the space between the lower flange of H profile steel stake 1 and baffle plate 3, by the lower flange of H profile steel stake 1 and gear
Natural soil dense extrusion between plate 3, between blocking between the lower flange contacting plate 5 and coattail board 6 and H profile steel stake 1 and baffle plate 3
Gap, prevent subsoil water flow out, if with this can't solve problem, Squeezing Soil Pile 4 is extracted, pours in the cavity extracted
Cementing material, is pressed again by Squeezing Soil Pile 4, and this process can be repeated, till not having subsoil water to flow out.Support system is removed
When, first extract merogenesis steel sheet pile 2 successively with conventional method, then extract H profile steel stake 1 successively, complete support system and remove.Certainly on
Junction button can be designed between lower section merogenesis steel sheet pile 2, merogenesis steel sheet pile 2 is contacted, can be carried by upper section merogenesis steel sheet pile 2 during pile pulling
Dynamic lower section merogenesis steel sheet pile 2 is extracted.
Need explanation：
1st, the present invention is to transmit lower pressure section merogenesis steel sheet pile 2 by upper section merogenesis steel sheet pile 2, and soil layer is also that excavation section by section divides
Section supporting, the therefore pile compacting equipment of merogenesis steel sheet pile 2 only need to overcome the end resistance of next section merogenesis steel sheet pile 2 and remaining is each
The frictional force in the native face of gear of section merogenesis steel sheet pile 2, general pile compacting equipment can meet requirement.2nd, first segment merogenesis steel sheet pile 2
All retain 200 to 500 millimeter high soil layer when excavating every time not excavate, temporary leaking water effect can be played well.3、
When merogenesis steel sheet pile 2 runs into boulder or cobble interlayer can not be pressed into, stop pushing, when excavating soil layer, dig out boulder or cobble
It is pressed into merogenesis steel sheet pile 2 after interlayer again, this addresses the problem that conventional steel sheet stake runs into boulder or cobble interlayer is difficult to be pressed into asks
Topic.4th, the contact plate 5 of merogenesis steel sheet pile 2 has certain width, can adjust interval error when two H profile steel stakes 1 are squeezed into；Swallow
Tailgate 6 then can stop merogenesis steel sheet pile 2 from disengaging between the lower flange of H profile steel stake 1 and baffle plate 3.5th, if necessary, the present invention
Need to coordinate horizontal shore system or other prevents H profile steel stake 1 to needing displacement or the method for supporting toppling inside the foundation ditch of supporting.
6th, the H profile steel stake 1 of the present invention can use steel plate splicing.
Claims (2)
1. a kind of H profile steel foundation pit support device, is characterized in that：It is mainly by H profile steel stake（1）, merogenesis steel sheet pile (2), baffle plate
（3）, Squeezing Soil Pile（4）Composition；Baffle plate（3）It is welded on H profile steel stake（1）Web on, the left and right two ends of merogenesis steel sheet pile (2) all have
Contact plate（5）And coattail board（6）, there is U-lag the upper end of merogenesis steel sheet pile (2)（7）, Squeezing Soil Pile（4）There is pile crown（9）；Merogenesis steel
The contact plate of sheet pile (2)（5）And coattail board（6）Insert adjacent H profile steel stake respectively（1）Lower flange and baffle plate（3）Between, squeeze
Native stake（4）Press-in H profile steel stake（1）Lower flange and baffle plate（3）Between space in, U-lag（7）Built with sealing rod（8）, on
The lower U-lag saving merogenesis steel sheet pile (2) of lower end insertion of section merogenesis steel sheet pile (2)（7）Interior.
2. a kind of H profile steel foundation pit support device according to claim 1, it is characterized in that described merogenesis steel sheet pile (2) its
It is designed with junction button between section merogenesis steel sheet pile (2) up and down, merogenesis steel sheet pile (2) is contacted, can be by upper section merogenesis steel during pile pulling
Sheet pile (2) drives lower section merogenesis steel sheet pile (2) to extract.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510538913.3A CN105064379B (en) | 2015-08-29 | 2015-08-29 | H-shaped steel foundation pit supporting device and method |
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| CN201510538913.3A CN105064379B (en) | 2015-08-29 | 2015-08-29 | H-shaped steel foundation pit supporting device and method |
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| CN105064379A CN105064379A (en) | 2015-11-18 |
| CN105064379B true CN105064379B (en) | 2017-02-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696601A (en) * | 2016-02-27 | 2016-06-22 | 武汉市创先专利技术服务有限公司 | Reusable foundation pit supporting device with water stopping function and construction method |
| CN105672328B (en) * | 2016-02-28 | 2017-07-04 | 青岛蓝天创先科技服务有限公司 | Slip casting ductule resists the H profile steel foundation pit support device of earth lateral pressure |
| CN105804078B (en) * | 2016-03-07 | 2017-09-15 | 青岛蓝天创先科技服务有限公司 | A kind of merogenesis steel sheet pile press-in of H profile steel foundation pit support device and extraction equipment |
| CN110629765B (en) * | 2019-09-29 | 2021-03-30 | 河南乾坤路桥工程有限公司 | Safety protection device and protection method for H-shaped steel foundation pit |
| CN114855824B (en) * | 2022-06-08 | 2024-06-21 | 浙江国进建设有限公司 | Construction method of Larson steel sheet pile of foundation pit |
Citations (4)
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|---|---|---|---|---|
| CN202530441U (en) * | 2012-04-25 | 2012-11-14 | 上海智平基础工程有限公司 | U-shaped connector steel sheet pile |
| CN203200762U (en) * | 2013-01-11 | 2013-09-18 | 东南大学 | HSW construction method pile foundation pit supporting structure |
| CN204023549U (en) * | 2014-03-14 | 2014-12-17 | 江苏东合南岩土工程技术研究有限公司 | A kind of SE combined steel plate pile |
| CN104285010A (en) * | 2012-05-16 | 2015-01-14 | 杰富意钢铁株式会社 | Combined steel wall |
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2015
- 2015-08-29 CN CN201510538913.3A patent/CN105064379B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202530441U (en) * | 2012-04-25 | 2012-11-14 | 上海智平基础工程有限公司 | U-shaped connector steel sheet pile |
| CN104285010A (en) * | 2012-05-16 | 2015-01-14 | 杰富意钢铁株式会社 | Combined steel wall |
| CN203200762U (en) * | 2013-01-11 | 2013-09-18 | 东南大学 | HSW construction method pile foundation pit supporting structure |
| CN204023549U (en) * | 2014-03-14 | 2014-12-17 | 江苏东合南岩土工程技术研究有限公司 | A kind of SE combined steel plate pile |
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