CN103290861A - Stiff cement and soil continuous wall pile pulling method capable of ensuring stable surrounding circumstances - Google Patents
Stiff cement and soil continuous wall pile pulling method capable of ensuring stable surrounding circumstances Download PDFInfo
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- CN103290861A CN103290861A CN201310253568XA CN201310253568A CN103290861A CN 103290861 A CN103290861 A CN 103290861A CN 201310253568X A CN201310253568X A CN 201310253568XA CN 201310253568 A CN201310253568 A CN 201310253568A CN 103290861 A CN103290861 A CN 103290861A
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Abstract
The invention provides a stiff cement and soil continuous wall pile pulling method capable of ensuring stability of surrounding circumstances. The stiff cement and soil continuous wall pile pulling method capable of ensuring stability of surrounding circumstances includes the following steps that firstly, after construction of underground N stories of a building is finished, a water-proof layer is laid on the outer wall face of the building and a water-proof layer protecting wall is built outside the water-proof layer. Afterwards, concrete is filled back to a gap between the water-proof layer protecting wall and the cement soil continuous wall till the level of the underground N stories, a horizontal support of the cement soil continuous wall of the underground N stories is detached and N is the story height of a basement. Secondly, after construction of underground N-1 stories of the building is finished and the first step is repeated. Thirdly, the first step and the second step are repeated until construction of the underground first story is finished, the concrete is filled back to the gap between the water-proof layer protecting wall and the cement soil continuous wall till 30cm below a water and electricity level of the underground first story and a support of the cement soil continuous wall of the underground first layer is detached. Fourthly, fashioned iron is pulled out every other piece of fashioned iron. The stiff cement and soil continuous wall pile pulling method capable of ensuring stable surrounding circumstances has the advantages of preventing the cement and soil continuous wall from horizontally moving and ensuring geological stability of surrounding circumstances.
Description
Technical field
The present invention relates to the construction techniques technical field, especially relate to a kind of stiffness cement soil continuous wall pile pulling method of guaranteeing that surrounding enviroment are stable.
Background technology
Along with quickening of urbanization process, a lot of old buildings are replaced by some new buildings gradually, but because to urban development speed and the limitation of planning at a specified future date, Shi Gong old building was when dismounting or new building reconstruction in the past, always run into various difficulties, particularly: 1, the new building exterior wall is nearer apart from supporting and protection structure, and the backfilling compaction work plane is less, and the backfill compacted density can't reach designing requirement; 2, supporting periphery ground, underground environment complexity in case after shaped steel is pulled out, can cause the cement soil continuous wall horizontal movement, influence the stability of surrounding enviroment geology.
Summary of the invention
The objective of the invention is to overcome the prior art deficiency, a kind of stiffness cement soil continuous wall pile pulling method of guaranteeing that surrounding enviroment are stable is provided.
Technical scheme of the present invention is:
A kind of stiffness cement soil continuous wall pile pulling method of guaranteeing that surrounding enviroment are stable may further comprise the steps,
(1) after the negative N layer construction of building finishes, outside the building metope is laid waterproofing course, and outside waterproofing course, build waterproofing course and protect wall, then concrete backfill is extremely born N layer absolute altitude to space between waterproofing course protection wall and the cement soil continuous wall, remove the horizontal support of the cement soil continuous wall of negative N layer, N is the basement floor height;
(2) after the negative N-1 layer construction of building finishes, outside the building metope is laid waterproofing course, and outside waterproofing course, build waterproofing course and protect wall, then concrete backfill is extremely born N-1 layer absolute altitude to space between waterproofing course protection wall and the cement soil continuous wall, remove the horizontal support of the cement soil continuous wall of negative N-1 layer, N is the basement floor height;
(3) repeat above step after bearing the 1 layer of end of constructing, concrete backfill is extremely born 30cm place under 1 layer of water power absolute altitude, the horizontal support of the cement soil continuous wall that dismounting is negative 1 layer to space between waterproofing course protection wall and the cement soil continuous wall;
(4) shaped steel is pulled out, and shaped steel is pulled out employing and carried out every the order of a jumping one.
Further, mixed rubble in the concrete of backfill in described step (1), (2), (3).
Advantage and good effect that the present invention has are: satisfy the designing requirement of backfill compacted density, prevent that simultaneously shaped steel from extracting after, the cement soil continuous wall horizontal movement that causes guarantees surrounding enviroment geology stability.
The specific embodiment
A kind of stiffness cement soil continuous wall pile pulling method of guaranteeing that surrounding enviroment are stable of the present invention may further comprise the steps,
(1) after the negative N layer construction of building finishes, outside the building metope is laid waterproofing course, and outside waterproofing course, build waterproofing course and protect wall, then concrete backfill is extremely born N layer absolute altitude to space between waterproofing course protection wall and the cement soil continuous wall, remove the horizontal support of the cement soil continuous wall of negative N layer, N is the basement floor height;
(2) after the negative N-1 layer construction of building finishes, outside the building metope is laid waterproofing course, and outside waterproofing course, build waterproofing course and protect wall, then concrete backfill is extremely born N-1 layer absolute altitude to space between waterproofing course protection wall and the cement soil continuous wall, remove the horizontal support of the cement soil continuous wall of negative N-1 layer, N is the basement floor height;
(3) repeat above step after bearing the 1 layer of end of constructing, concrete backfill is extremely born 30cm place under 1 layer of water power absolute altitude, the horizontal support of the cement soil continuous wall that dismounting is negative 1 layer to space between waterproofing course protection wall and the cement soil continuous wall;
(4) shaped steel is pulled out, and shaped steel is pulled out employing and carried out every the order of a jumping one.
Mixed rubble in the concrete of backfill in described step (1), (2), (3).
The step that the shaped steel of described step (4) is pulled out is as follows:
(1) the clear geotechnique who carries out collar tie beam does, and comes out fully until concrete collar tie beam and H shaped steel;
When (2) removing support and waist rail, should remove the channel-section steel and the electric welding scar that remain in H shaped steel surface clean;
(3) select the H shaped steel that will pull out, and in the H shaped steel bolt hole of offering suitable for reading;
(4) two hydraulic jack are placed on enclose on the purlin, to rise with crane and to pull out frame and transfer to the top that to pull out H shaped steel, aim at the circular hole that inserts H shaped steel top with working the Hough circular hole that pulls out frame, and pin inserted, the pin both sides fix with cottor pin in case the pin landing, then the plektron steel plate has been inserted and pulled out between frame and the H shaped steel wing plumage, and clamped H shaped steel;
(5) start two hydraulic jack, two hydraulic jack have upwards been withstood the header portion that pulls out frame simultaneously and have been risen and pull out, and pull to certain altitude, strike loose plektron steel plate, pull out frame and slowly put down with hydraulic jack and put original position;
(6) crane penetrates H shaped steel bolt hole suitable for reading by wire rope, hangs H shaped steel,
(7) again the plektron steel plate has been inserted and pulled out between frame and the H shaped steel wing plumage, and clamp H shaped steel, two hydraulic jack have upwards been withstood the header portion that pulls out frame simultaneously and have been risen and pull out, and pull to certain altitude, strike loose plektron steel plate, rise and to pull out frame and slowly put down with hydraulic jack and put original position;
(8) keep crane to hang H shaped steel, repeat above step (7) until H shaped steel is pulled out fully;
(9) the H shaped steel of pulling out is treated a certain amount of time shipment with moving to entrucking, and enough passages and parking space should be reserved in the construction plant, when H shaped steel is pulled out, carry out segmentation and cut off;
In the process of pulling out H shaped steel, adopt every the mode of a jumping one and carry out.
Embodiment one
Backfill step: after the negative two layers of construction of (1) building finish, outside the building metope is laid waterproofing course, and outside waterproofing course, build waterproofing course and protect wall, employing mixes the C15 concrete backfill waterproofing course of rubble and protects extremely negative two layers of absolute altitude in space between wall and the cement soil continuous wall, removes the horizontal support of negative two layers cement soil continuous wall; (2) after the negative one deck construction of building finishes, outside the building metope is laid waterproofing course, and outside waterproofing course, build waterproofing course and protect wall, employing mixes between the C15 concrete backfill waterproofing course protection wall of rubble and the cement soil continuous wall 30cm place to negative one deck water power absolute altitude, space, removes the horizontal support of the cement soil continuous wall of bearing one deck;
Shaped steel is pulled out step: (1) is closely knit with the space backfill that cement-soil stirs between wall and the agent structure outer wall of basement; (2) the clear geotechnique who carries out collar tie beam does, and comes out fully until concrete collar tie beam and H shaped steel; When (3) removing support and waist rail, should remove the channel-section steel and the electric welding scar that remain in H shaped steel surface clean; (4) select the H shaped steel that to pull out, and in H shaped steel gas cutting bolt suitable for reading hole, be used for lifting H shaped steel; (5) two hydraulic jack are placed on enclose on the purlin, to rise with crane and to pull out frame and transfer to the top that to pull out H shaped steel, aim at 4 circular holes that insert H shaped steel top with working the Hough circular hole that pulls out frame, and pin inserted, the pin both sides fix with cottor pin in case the pin landing, then the plektron steel plate has been inserted and pulled out between frame and the H shaped steel wing plumage, and clamped H shaped steel; (6) start two hydraulic jack, two hydraulic jack have upwards been withstood the header portion that pulls out frame simultaneously and have been risen and pull out, and pull to 1.5 meters, strike loose plektron steel plate, pull out frame and slowly put down with hydraulic jack and put original position; (7) crane penetrates H shaped steel bolt hole suitable for reading by wire rope, hang H shaped steel, (8) again the plektron steel plate has been inserted and pulled out between frame and the H shaped steel wing plumage, and clamp H shaped steel, two hydraulic jack have upwards been withstood the header portion that pulls out frame simultaneously and have been risen and pull out, pull to 1.5 meters, strike loose plektron steel plate, rise and to pull out frame and slowly put down with hydraulic jack and put original position; (9) keep crane to hang H shaped steel, repeat above step (8) until H shaped steel is pulled out fully; (10) the H shaped steel of pulling out is treated a certain amount of time shipment with moving to entrucking, and enough passages and parking space should be reserved in the construction plant, and the lorry total length is not less than 12 meters, and when H shaped steel was pulled out, per 9～12 meters were carried out segmentation and cut off, so that the entrucking transportation; In the process of pulling out H shaped steel, adopt every the mode of a jumping one and carry out.
More than one embodiment of the present of invention are had been described in detail, but described content only is preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (2)
1. stiffness cement soil continuous wall pile pulling method of guaranteeing that surrounding enviroment are stable is characterized in that: may further comprise the steps,
(1) after the negative N layer construction of building finishes, outside the building metope is laid waterproofing course, and outside waterproofing course, build waterproofing course and protect wall, then concrete backfill is extremely born N layer absolute altitude to space between waterproofing course protection wall and the cement soil continuous wall, remove the horizontal support of the cement soil continuous wall of negative N layer, N is the basement floor height;
(2) after the negative N-1 layer construction of building finishes, outside the building metope is laid waterproofing course, and outside waterproofing course, build waterproofing course and protect wall, then concrete backfill is extremely born N-1 layer absolute altitude to space between waterproofing course protection wall and the cement soil continuous wall, remove the horizontal support of the cement soil continuous wall of negative N-1 layer, N is the basement floor height;
(3) repeat above step after bearing the 1 layer of end of constructing, concrete backfill is extremely born 30cm place under 1 layer of water power absolute altitude, the horizontal support of the cement soil continuous wall that dismounting is negative 1 layer to space between waterproofing course protection wall and the cement soil continuous wall;
(4) shaped steel is pulled out, and shaped steel is pulled out employing and carried out every the order of a jumping one.
2. a kind of stiffness cement soil continuous wall pile pulling method of guaranteeing that surrounding enviroment are stable according to claim 1 is characterized in that: mixed rubble in the concrete of backfill in described step (1), (2), (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310253568.XA CN103290861B (en) | 2013-06-24 | 2013-06-24 | A kind ofly guarantee the reinforced continuous cement-soil wall pile extracting method that surrounding enviroment are stable |
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| CN201310253568.XA CN103290861B (en) | 2013-06-24 | 2013-06-24 | A kind ofly guarantee the reinforced continuous cement-soil wall pile extracting method that surrounding enviroment are stable |
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| CN103290861A true CN103290861A (en) | 2013-09-11 |
| CN103290861B CN103290861B (en) | 2015-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832986A (en) * | 2021-10-15 | 2021-12-24 | 中国二十二冶集团有限公司 | Waterproof construction method for underground outer wall in limited space in foundation pit supported by slope protection piles |
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| CN113832986A (en) * | 2021-10-15 | 2021-12-24 | 中国二十二冶集团有限公司 | Waterproof construction method for underground outer wall in limited space in foundation pit supported by slope protection piles |
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| CN103290861B (en) | 2015-09-23 |
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