CN113847039A - Construction method for breaking pile hole door in SMW (soil mixing wall) construction method in pipe jacking construction - Google Patents
Construction method for breaking pile hole door in SMW (soil mixing wall) construction method in pipe jacking construction Download PDFInfo
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- CN113847039A CN113847039A CN202111167950.XA CN202111167950A CN113847039A CN 113847039 A CN113847039 A CN 113847039A CN 202111167950 A CN202111167950 A CN 202111167950A CN 113847039 A CN113847039 A CN 113847039A
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- shaped steel
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- 238000010276 construction Methods 0.000 title claims abstract description 52
- 239000002689 soil Substances 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- 239000004568 cement Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 230000009193 crawling Effects 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 241000282326 Felis catus Species 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000011218 segmentation Effects 0.000 description 3
- 235000001270 Allium sibiricum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention provides a construction method for breaking a pile hole door in an SMW construction method in pipe jacking construction, which depends on a movable frame and comprises a main frame body, wherein an inner cavity of the main frame body can accommodate H-shaped steel; the construction method comprises the following steps: 1) chiseling cement soil and chiseling H-shaped steel; 2) sleeving the H-shaped steel in the main frame body from the open end, and cutting the H-shaped steel from the upper end and the lower end of the H-shaped steel respectively, wherein the cut parts are provided with cutting holes; 3) the pin shaft penetrates through the cutting hole and is fixed on the longitudinal rib; 4) and dragging the pin shaft to move the H-shaped steel outwards by utilizing the hoisting mechanism. According to the invention, the H-shaped steel only needs to be cut twice up and down, and moves outwards and is lifted out after being integrally cut, so that the cutting workload is greatly reduced, the labor is saved, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of pipe-jacking construction, in particular to a construction method for breaking a pile hole door in an SMW (soil mixing wall) construction method in pipe-jacking construction
Background
Normally abolish the SMW worker method stake that portal corresponds, need the scaffold, abolish the soil cement earlier, then carry out the segmentation cutting to H shaped steel, hang out, it is big mainly to consider the safety risk of wholecutting, including the whole hoist and mount risk with collide operating personnel's risk, the segmentation cutting is favorable to reducing the risk, the cutting volume of segmentation cutting is big, and the cutting hangs out the in-process, every time all need cut out the hoist and mount hole on H shaped steel, utilize the crane lug to hang out, the H shaped steel that is cut need be followed portal position to perpendicular hoist and mount state, there is a process of swinging out, there is inertial force, there is certain safe risk.
Disclosure of Invention
The invention aims to solve the technical problem of providing a construction method for breaking a pile hole door in an SMW construction method in pipe jacking construction, which can move and transfer H-shaped steel after being integrally cut, saves labor, is safe and stable, and has high construction efficiency.
Based on the problems, the technical scheme provided by the invention is a construction method for breaking a pile hole door of an SMW construction method in pipe-jacking construction, the method depends on a movable frame for breaking the pile hole door of the SMW construction method in pipe-jacking construction, the movable frame comprises a main frame body and crawling ladders, the main frame body can contain H-shaped steel in an inner cavity, the crawling ladders are movably connected to two sides of the top of the main frame body, one end of the main frame body is open, longitudinal ribs are fixedly connected to the upper portion and the lower portion of two side ends adjacent to the open end, and a pin shaft which is transversely arranged is movably connected between two opposite longitudinal ribs.
Wherein, the length of the main frame body is 2.5-3 times of the length of the H-shaped steel.
Furthermore, the longitudinal bars are welded into a bundle of load-bearing I-shaped steel or reinforcing steel bars.
Furthermore, a certain distance is kept between the longitudinal ribs positioned at the upper end of the main frame body and the top end of the main frame body, and a certain distance is kept between the longitudinal ribs positioned at the lower end of the main frame body and the lower end of the main frame body.
Furthermore, the mandrils at two side ends adjacent to the open end are rotatably connected with a sleeve shaft, and the top end of the ladder stand is fixedly connected to the sleeve shaft.
The construction method comprises the following steps:
1) chiseling cement soil and chiseling H-shaped steel;
2) sleeving the H-shaped steel in the main frame body, and cutting the H-shaped steel from the upper end and the lower end of the H-shaped steel respectively, wherein cutting holes are formed in the cut parts;
3) the pin shaft penetrates through the cutting hole and is fixed on the longitudinal rib;
4) and dragging the pin shaft to move the H-shaped steel outwards by utilizing the hoisting mechanism.
The cutting hole located at the upper end of the H-shaped steel is located 10-30 cm below the cutting part, and the cutting hole located at the lower end of the H-shaped steel is located 10-30 cm above the cutting part.
And 2) sleeving the H-shaped steel in the main frame body, cutting from the upper end of the H-shaped steel, arranging a cutting hole at the cutting part, partially cutting the lower end of the H-shaped steel, enabling the H-shaped steel to transversely move in the space of the main frame body to the position where the H-shaped steel is completely separated from the original position by knocking, and arranging a cutting hole at the lower end of the H-shaped steel.
The hoisting mechanism is a chain block, and after the H-shaped steel is moved out of the hole by the chain block, the cut H-shaped steel is integrally hoisted out by a crane.
The invention has the advantages and beneficial effects that:
1. the H-shaped steel only needs to be cut twice up and down, and moves outwards and is lifted out after being integrally cut off, so that the cutting workload is greatly reduced, and the labor is saved.
2. The support body is rational in infrastructure, and is safe firm, and the operation workman obtains the guarantee at chisel soil cement and cutting H shaped steel in-process safety.
3. The frame body can be transported integrally, and a temporary scaffold does not need to be built, so that the construction efficiency is improved.
Drawings
Fig. 1 is a perspective view of a moving frame of the present invention.
Fig. 2 is a front view of the mobile frame of the present invention.
FIG. 3 is a side view of the moving frame for fixing H-shaped steel according to the present invention.
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3
Wherein: 1. a main frame body; 2. climbing a ladder; 3. longitudinal ribs; 4. a pin shaft; 5. fixing a rope; 6. a sleeve shaft; 7. and cutting the hole.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in figures 1-3, the construction method for breaking the SMW construction method pile hole door in pipe jacking construction relies on a movable frame for breaking the SMW construction method pile hole door in pipe jacking construction, the movable frame comprises a main frame body 1 with an inner cavity capable of accommodating H-shaped steel and ladder stands 2 movably connected to two sides of the top of the main frame body 1, one end of the main frame body 1 is open, longitudinal ribs 3 are fixedly connected to the upper part and the lower part of two side ends adjacent to the open end, and a pin shaft 4 transversely arranged is movably connected between the two opposite longitudinal ribs 3.
Wherein, the length of the main frame body 1 is 2.5-3 times of the length of the H-shaped steel, so that the H-shaped steel can be ensured to be framed, and on the other hand, enough space is ensured to pull out the H-shaped steel.
Furthermore, the longitudinal bars 3 are welded into a bundle of load-bearing beams or reinforcing steel bars.
Furthermore, a certain distance is kept between the longitudinal ribs 3 positioned at the upper end of the main frame body 1 and the top end of the main frame body 1, and a certain distance is kept between the longitudinal ribs 3 positioned at the lower end of the main frame body 1 and the lower end of the main frame body 1.
Further, as shown in fig. 4, the mandril at two side ends adjacent to the opened end is rotatably connected with the sleeve shaft 6, the top end of the ladder stand 2 is fixedly connected onto the sleeve shaft 6, the arrangement of the ladder stand 2 is convenient for operators to chive off cement soil and cut H-shaped steel, the ladder stands 2 at two sides can be retracted, and the space is saved in the transferring process of the device. When the ladder stand is erected, a limiting rope 5 is arranged between the ladder stand 2 and the main frame, so that the overall stability is guaranteed, the whole ladder stand is triangular, and the structure is reasonable.
The construction method comprises the following steps:
1) chiseling cement soil and chiseling H-shaped steel;
2) the H-shaped steel is sleeved in the main frame body 1 and is cut and cut off from the upper end and the lower end of the H-shaped steel respectively
Cutting holes 7 are arranged at all the positions;
3) the pin shaft 4 penetrates through the cutting hole 7 and is fixed on the longitudinal rib 3;
4) and dragging the pin shaft 4 to move the H-shaped steel outwards by utilizing the hoisting mechanism.
Wherein, be located H shaped steel upper end cutting hole 7 is located and cuts off position below 10 ~ 30cm department, is located H shaped steel lower extreme cutting hole 7 is located and cuts off position top 10 ~ 30cm department, suits with the position of indulging muscle 3 and round pin axle 4, guarantees that H shaped steel is totally built up in moving the frame.
In the step 2), the H-shaped steel is sleeved in the main frame body 1, cutting is carried out from the upper end of the H-shaped steel, partial cutting is carried out on the lower end of the H-shaped steel, and the H-shaped steel transversely moves in the space of the main frame body to the position where the H-shaped steel is completely separated from the original position through knocking.
The hoisting mechanism is a chain block, after the H-shaped steel is cut off, the H-shaped steel is firstly moved transversely and then moved longitudinally, and after the H-shaped steel is moved out of the door by the chain block, the whole cut H-shaped steel is lifted out by a crane.
Although the embodiments of the present invention have been described in detail, the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The utility model provides a remove frame that is used for push pipe construction to abolish SMW worker method stake portal, can hold the body frame body of H shaped steel, swing joint at the cat ladder of body frame body top both sides including the inner chamber, its characterized in that: the body frame body one end is opened, indulges the muscle with the equal rigid coupling from top to bottom of the both sides end that opens the one end adjacent, and the round pin axle that swing joint transversely set up between the relative two indulges the muscle.
2. The movable frame for pipe jacking construction to break the pile hole door of the SMW construction method according to claim 1, wherein: the length of the main frame body is 2.5-3 times of the length of the H-shaped steel.
3. The movable frame for pipe jacking construction to break the pile hole door of the SMW construction method according to claim 2, wherein: the longitudinal bars are welded into a bundle of load-bearing I-shaped steel or reinforcing steel bars.
4. The movable frame for pipe jacking construction to break the pile hole door of the SMW construction method according to claim 3, wherein: the longitudinal ribs positioned at the upper end of the main frame body keep a certain distance from the top end of the main frame body, and the longitudinal ribs positioned at the lower end of the main frame body keep a certain distance from the lower end of the main frame body.
5. The movable frame for pipe jacking construction to break the pile hole door of the SMW construction method according to any one of claims 1 to 4, which is characterized in that: the top rods of the two side ends adjacent to the open end are rotatably connected with sleeve shafts, and the top ends of the crawling ladder are fixedly connected to the sleeve shafts.
6. A construction method for breaking a pile hole door in an SMW construction method in pipe jacking construction is characterized in that:
the method depends on the movable frame for pipe-jacking construction to break the pile hole door of the SMW construction method, and comprises the following steps:
1) chiseling cement soil and chiseling H-shaped steel;
2) sleeving the H-shaped steel in the main frame body, and cutting the H-shaped steel from the upper end and the lower end of the H-shaped steel respectively, wherein cutting holes are formed in the cut parts;
3) the pin shaft penetrates through the cutting hole and is fixed on the longitudinal rib;
4) and dragging the pin shaft to move the H-shaped steel outwards by utilizing the hoisting mechanism.
7. The pipe jacking construction method for breaking the pile hole door in the SMW construction method according to claim 6, which is characterized in that: the cutting hole located at the upper end of the H-shaped steel is located 10-30 cm below the cutting part, and the cutting hole located at the lower end of the H-shaped steel is located 10-30 cm above the cutting part.
8. The pipe jacking construction method for breaking the pile hole door in the SMW construction method according to claim 7, which is characterized in that: and 2) sleeving the H-shaped steel in the main frame, cutting from the upper end of the H-shaped steel, arranging a cutting hole at the cutting part, partially cutting from the lower end, enabling the H-shaped steel to transversely move in the space of the main frame to the position where the H-shaped steel is completely separated from the original position by knocking, and arranging a cutting hole at the lower end of the H-shaped steel.
9. The pipe jacking construction method for breaking the pile hole door based on the SMW construction method according to any one of claims 6 to 8, which is characterized in that: the hoisting mechanism is a chain block, and after the chain block moves the H-shaped steel out of the hole, the whole cut H-shaped steel is hoisted out by a crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111167950.XA CN113847039A (en) | 2021-09-30 | 2021-09-30 | Construction method for breaking pile hole door in SMW (soil mixing wall) construction method in pipe jacking construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111167950.XA CN113847039A (en) | 2021-09-30 | 2021-09-30 | Construction method for breaking pile hole door in SMW (soil mixing wall) construction method in pipe jacking construction |
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| Publication Number | Publication Date |
|---|---|
| CN113847039A true CN113847039A (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111167950.XA Pending CN113847039A (en) | 2021-09-30 | 2021-09-30 | Construction method for breaking pile hole door in SMW (soil mixing wall) construction method in pipe jacking construction |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203796288U (en) * | 2014-04-24 | 2014-08-27 | 中铁十一局集团城市轨道工程有限公司 | Water seepage prevention structure used for shield entrance door employing SMW piles |
| CN105780782A (en) * | 2016-05-18 | 2016-07-20 | 中铁第四勘察设计院集团有限公司 | Oblique support and steel retaining purlin slip preventing device with piles constructed by SMW construction process |
| CN108301404A (en) * | 2018-01-18 | 2018-07-20 | 中国冶集团有限公司 | SMW engineering method pile-type steel is pulled out and high-pressure slip-casting method for synchronously constructing |
| CN108589699A (en) * | 2018-04-20 | 2018-09-28 | 浙江大学城市学院 | A kind of interpolation H profile steel TRD walls and its construction method |
| CN110820742A (en) * | 2019-11-13 | 2020-02-21 | 贵州省公路工程集团有限公司 | Construction method for breaking underwater cast-in-place pile head |
| CN111980715A (en) * | 2020-08-25 | 2020-11-24 | 中铁十一局集团有限公司 | Construction method for breaking shield machine to reach tunnel portal |
-
2021
- 2021-09-30 CN CN202111167950.XA patent/CN113847039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203796288U (en) * | 2014-04-24 | 2014-08-27 | 中铁十一局集团城市轨道工程有限公司 | Water seepage prevention structure used for shield entrance door employing SMW piles |
| CN105780782A (en) * | 2016-05-18 | 2016-07-20 | 中铁第四勘察设计院集团有限公司 | Oblique support and steel retaining purlin slip preventing device with piles constructed by SMW construction process |
| CN108301404A (en) * | 2018-01-18 | 2018-07-20 | 中国冶集团有限公司 | SMW engineering method pile-type steel is pulled out and high-pressure slip-casting method for synchronously constructing |
| CN108589699A (en) * | 2018-04-20 | 2018-09-28 | 浙江大学城市学院 | A kind of interpolation H profile steel TRD walls and its construction method |
| CN110820742A (en) * | 2019-11-13 | 2020-02-21 | 贵州省公路工程集团有限公司 | Construction method for breaking underwater cast-in-place pile head |
| CN111980715A (en) * | 2020-08-25 | 2020-11-24 | 中铁十一局集团有限公司 | Construction method for breaking shield machine to reach tunnel portal |
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