CN204370410U - A kind of concrete tube core corrosion protection post - Google Patents
A kind of concrete tube core corrosion protection post Download PDFInfo
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- CN204370410U CN204370410U CN201420784431.7U CN201420784431U CN204370410U CN 204370410 U CN204370410 U CN 204370410U CN 201420784431 U CN201420784431 U CN 201420784431U CN 204370410 U CN204370410 U CN 204370410U
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- 238000005260 corrosion Methods 0.000 title claims abstract description 33
- 230000007797 corrosion Effects 0.000 title claims abstract description 16
- 239000002689 soil Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000004568 cement Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 7
- 239000002002 slurry Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003223 protective agent Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
本实用新型公开了一种砼管芯防蚀柱，其包括在土壤处理区域中形成的固化土外芯，固化土外芯的中心打设有砼管，固化土外芯的深度超过其所在的土壤处理区域中的水位变动区的下限1～2米，固化土外芯的最小直径为砼管的直径加上30cm且不得小于1m；优点是固化土外芯为直接在土壤处理区域中形成，不仅成本低，而且能与砼管很好地相结合，防腐蚀性好，且能大幅度地提高单桩的承载能力；由于腐蚀通常在水位变动区域，因此使固化土外芯的深度超过其所在的土壤处理区域中的水位变动区的下限1～2米，可有效防止腐蚀介质的侵蚀；将固化土外芯设计成最小直径为砼管的直径加上30cm且不得小于1m，使得承载能力更高，防腐蚀性更好。
The utility model discloses a concrete tube core anti-corrosion column, which comprises a solidified soil outer core formed in a soil treatment area, a concrete tube is drilled in the center of the solidified soil outer core, and the depth of the solidified soil outer core exceeds the depth of the solidified soil outer core. The lower limit of the water level fluctuation zone in the soil treatment area is 1-2 meters, and the minimum diameter of the solidified soil outer core is the diameter of the concrete pipe plus 30cm and must not be less than 1m; the advantage is that the solidified soil outer core is formed directly in the soil treatment area, Not only the cost is low, but also it can be well combined with the concrete pipe, has good corrosion resistance, and can greatly improve the bearing capacity of the single pile; since the corrosion is usually in the area where the water level changes, the depth of the outer core of the solidified soil exceeds its The lower limit of the water level fluctuation area in the soil treatment area is 1 to 2 meters, which can effectively prevent the erosion of corrosive media; the outer core of the solidified soil is designed to have a minimum diameter of the diameter of the concrete pipe plus 30cm and not less than 1m, so that the bearing capacity Higher, better corrosion resistance.
Description
技术领域 technical field
本实用新型涉及一种复合桩，尤其是涉及一种砼管芯防蚀柱。 The utility model relates to a composite pile, in particular to a concrete pipe core anti-corrosion column.
背景技术 Background technique
在中等、强腐蚀性环境中，预制管桩易受腐蚀介质的侵蚀，腐蚀介质与预制管桩的水泥石和钢筋会发生化学反应，促使水泥石酸解以及钢筋锈蚀，从而影响预制管桩的耐久性、桩身强度等。针对上述问题，目前采用的常规防腐蚀措施有采用特制的防腐蚀水泥制成预制管桩、在预制管桩的外表面涂刷或喷射有机硅保护剂等，虽然上述防腐蚀措施能达到防腐蚀的目的，但存在明显的不足，例如：采用特制的防腐蚀水泥制成预制管桩的方法成本高；在预制管桩的外表面涂刷或喷射有机硅保护剂的方法会减小预制管桩侧摩阻力，从而影响预制管桩的承载能力。 In medium and strong corrosive environments, prefabricated pipe piles are susceptible to corrosion by corrosive media. The corrosive medium will chemically react with the cement stone and steel bars of prefabricated pipe piles, which will promote the acid decomposition of cement stones and the corrosion of steel bars, thus affecting the durability of prefabricated pipe piles. property, pile strength, etc. In view of the above problems, the conventional anti-corrosion measures currently adopted include the use of special anti-corrosion cement to make prefabricated pipe piles, brushing or spraying silicone protective agents on the outer surface of prefabricated pipe piles, etc., although the above anti-corrosion measures can achieve anti-corrosion However, there are obvious deficiencies, such as: the method of using special anti-corrosion cement to make prefabricated pipe piles is expensive; the method of brushing or spraying organic silicon protective agent on the outer surface of prefabricated pipe piles will reduce the size of prefabricated pipe piles. Side friction resistance, thus affecting the bearing capacity of prefabricated pipe piles.
发明内容 Contents of the invention
本实用新型所要解决的技术问题是提供一种成本低、防腐蚀性好，且承载能力高的砼管芯防蚀柱。 The technical problem to be solved by the utility model is to provide a concrete tube core anti-corrosion column with low cost, good corrosion resistance and high bearing capacity.
本实用新型解决上述技术问题所采用的技术方案为：一种砼管芯防蚀柱，其特征在于包括在土壤处理区域中形成的固化土外芯，所述的固化土外芯的中心打设有砼管，所述的固化土外芯的深度超过其所在的土壤处理区域中的水位变动区的下限1～2m，所述的固化土外芯的最小直径为所述的砼管的直径加上30cm且不得小于1m。 The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a concrete pipe core anti-corrosion column, which is characterized in that it includes a solidified soil outer core formed in the soil treatment area, and the center of the solidified soil outer core is set There is a concrete tube, the depth of the solidified soil outer core exceeds the lower limit of the water level fluctuation zone in the soil treatment area where it is located by 1-2m, and the minimum diameter of the solidified soil outer core is the diameter of the concrete tube plus 30cm above and not less than 1m.
所述的固化土外芯为在土壤处理区域中对土壤固化处理形成；在此，固化处理所采用的固化剂会钝化土壤中的腐蚀介质，因此防腐蚀效果好。 The solidified soil outer core is formed by solidifying the soil in the soil treatment area; here, the solidifying agent used in the solidifying treatment will passivate the corrosive medium in the soil, so the anti-corrosion effect is good.
与现有技术相比，本实用新型的优点在于： Compared with the prior art, the utility model has the advantages of:
1）该砼管芯防蚀柱中的固化土外芯为直接在土壤处理区域中形成，不仅成本低，而且能与砼管很好地相结合，防腐蚀性好，且能大幅度地提高单桩的承载能力。 1) The solidified soil outer core in the concrete pipe core anti-corrosion column is directly formed in the soil treatment area, which not only has low cost, but also can be well combined with the concrete pipe, has good corrosion resistance, and can greatly improve The bearing capacity of a single pile.
2）由于腐蚀通常在水位变动区域，因此使固化土外芯的深度超过其所在的土壤处理区域中的水位变动区的下限1～2米，可有效地防止腐蚀介质的侵蚀，使得防腐蚀性更好。 2) Since the corrosion is usually in the water level fluctuation area, the depth of the solidified soil outer core exceeds the lower limit of the water level fluctuation area in the soil treatment area where it is located by 1 to 2 meters, which can effectively prevent the erosion of the corrosive medium and make the corrosion resistance better.
3）将固化土外芯设计成最小直径为砼管的直径加上30cm且不得小于1m，使得单桩的承载能力更高，防腐蚀性更好。 3) The outer core of the solidified soil is designed so that the minimum diameter is the diameter of the concrete pipe plus 30cm and not less than 1m, so that the bearing capacity of the single pile is higher and the corrosion resistance is better.
4）该砼管芯防蚀柱在制备时，是通过对土壤进行固化处理形成固化土外芯的，而固化处理所采用的固化剂会钝化土壤中的腐蚀介质，因此防腐蚀效果好。 4) When the concrete tube core anti-corrosion column is prepared, the outer core of the solidified soil is formed by curing the soil, and the curing agent used in the curing treatment will passivate the corrosive medium in the soil, so the anti-corrosion effect is good.
附图说明 Description of drawings
图1为本实用新型的砼管芯防蚀柱的截面示意图。 Fig. 1 is a schematic cross-sectional view of a concrete pipe core anti-corrosion column of the present invention.
具体实施方式 Detailed ways
以下结合附图实施例对本实用新型作进一步详细描述。 The utility model is described in further detail below in conjunction with the accompanying drawings.
本实施例提出的一种砼管芯防蚀柱，如图所示，其包括在土壤处理区域中对土壤固化处理形成的固化土外芯1，固化土外芯1的中心打设有砼管2，固化土外芯1的深度超过其所在的土壤处理区域中的水位变动区的下限2米，固化土外芯1的最小直径为砼管2的直径加上30cm且不得小于1m，例如：假设砼管的直径是60cm ，则要求固化土外芯1的最小直径为1m，即直径可为1m或大于1m如1.2m；假设 砼管的直径是90cm ，则要求固化土外芯1的最小直径为1.2m，即直径可为1.2m或大于1.2m如1.5m。 A concrete tube core anti-corrosion column proposed in this embodiment, as shown in the figure, includes a solidified soil outer core 1 formed by solidifying the soil in the soil treatment area, and a concrete tube is drilled in the center of the solidified soil outer core 1 2. The depth of the solidified soil outer core 1 exceeds the lower limit of the water level fluctuation zone in the soil treatment area where it is located by 2 meters, and the minimum diameter of the solidified soil outer core 1 is the diameter of the concrete pipe 2 plus 30cm and must not be less than 1m, for example: Assuming that the diameter of the concrete pipe is 60cm, the minimum diameter of the solidified soil outer core 1 is required to be 1m, that is, the diameter can be 1m or greater than 1m such as 1.2m; assuming that the diameter of the concrete pipe is 90cm, the minimum diameter of the solidified soil outer core 1 is required The diameter is 1.2m, that is, the diameter may be 1.2m or greater than 1.2m, such as 1.5m.
在此，固化土外芯的深度超过其所在的土壤处理区域中的水位变动区的下限1～2米均能起到很好的防腐蚀性，因此在实际施工时可根据实际情况确定固化土外芯的深度。 Here, the depth of the outer core of the solidified soil exceeds the lower limit of the water level fluctuation zone in the soil treatment area by 1 to 2 meters, which can have good corrosion resistance, so the solidified soil can be determined according to the actual situation during actual construction. The depth of the outer core.
该砼管芯防蚀柱的制备过程为： The preparation process of the concrete pipe core anti-corrosion column is as follows:
①对待处理的土壤处理区域进行水位勘探，确定土壤处理区域中的水位变动区的下限；并对土壤处理区域进行地质勘探，根据工程要求以及地质勘探情况，确定土壤处理区域中应设置的砼管的直径和长度。 ① Carry out water level exploration in the soil treatment area to be treated, determine the lower limit of the water level change area in the soil treatment area; conduct geological exploration in the soil treatment area, and determine the concrete pipes that should be set in the soil treatment area according to engineering requirements and geological exploration conditions diameter and length.
②采用土壤固化技术对土壤处理区域中应设置砼管的部分区域进行固化处理，形成固化土外芯，并使固化土外芯的深度超过土壤处理区域中的水位变动区的下限2米，且固化土外芯的最小直径为砼管的直径加上30cm且不得小于1m。 ② Use soil solidification technology to solidify the part of the soil treatment area where concrete pipes should be installed to form a solidified soil outer core, and make the depth of the solidified soil outer core exceed the lower limit of the water level fluctuation area in the soil treatment area by 2 meters, and The minimum diameter of the solidified soil outer core is the diameter of the concrete pipe plus 30cm and not less than 1m.
在此，固化土外芯的深度超过其所在的土壤处理区域中的水位变动区的下限1～2米均能起到很好的防腐蚀性，因此在实际施工时可根据实际情况确定固化土外芯的深度。 Here, the depth of the outer core of the solidified soil exceeds the lower limit of the water level fluctuation zone in the soil treatment area by 1 to 2 meters, which can have good corrosion resistance, so the solidified soil can be determined according to the actual situation during actual construction. The depth of the outer core.
在此，固化处理所采用的固化机为专利号为201020546026.3的中国实用新型专利公开的海涂泥快速固结施工机械设备，所采用的固化剂浆液的水灰比为0.5～1，如具体施工时采用水灰比为0.8的固化剂浆液，固化剂浆液中的固化剂为专利号为201010268432.2的中国发明专利公开的海涂泥快速固结剂，两者相结合能够有效地提高固化效果，从而能够有效地提高防腐蚀性及单桩的承载能力。当然，具体施工时根据施工条件也可采用其他固化机和固化剂，如采用经改装的宝马拌和机。 Here, the curing machine used in the curing treatment is the sea mud rapid consolidation construction machinery and equipment disclosed in the Chinese Utility Model Patent No. 201020546026.3, and the water-cement ratio of the curing agent slurry used is 0.5-1. A curing agent slurry with a water-cement ratio of 0.8 is used. The curing agent in the curing agent slurry is the sea mud rapid consolidation agent disclosed in the Chinese invention patent No. 201010268432.2. The combination of the two can effectively improve the curing effect, thereby effectively Improve the corrosion resistance and the bearing capacity of the single pile. Of course, other curing machines and curing agents can also be used according to the construction conditions during specific construction, such as the modified BMW mixer.
在进行土工试验时确定固化剂掺和比，掺和比在5%～12%之间；再根据工程淤泥含水率、固化剂施工输送距离确定固化剂浆液的水灰比，固化剂浆液的水灰比控制在0.5～1。 The mixing ratio of the curing agent is determined during the geotechnical test, and the mixing ratio is between 5% and 12%. Then, the water-cement ratio of the curing agent slurry is determined according to the water content of the engineering sludge and the construction delivery distance of the curing agent. The gray ratio is controlled at 0.5-1.
③在固化土外芯初凝之前，在固化土外芯的中心打设砼管，砼管的打设施工作业过程为：桩机就位—复核桩位—吊桩插桩—桩身对中调直—静压沉桩—接桩—再静压沉桩—送桩—终止压桩—桩质量检验。 ③Before the initial setting of the outer core of the solidified soil, a concrete pipe is drilled in the center of the outer core of the solidified soil. The construction work process of the concrete pipe is as follows: pile driver in place—review pile position—hanging pile insertion—pile centering Straightening - static pressure pile sinking - pile connection - static pressure pile sinking again - sending pile - termination of pile pressing - pile quality inspection.
④在固化土外芯完全固结后形成砼管芯防蚀柱。一般情况下，养护28天以上固化土外芯能够完全固结。 ④ After the outer core of the solidified soil is completely consolidated, the anti-corrosion column of the concrete tube core is formed. Under normal circumstances, the outer core of solidified soil can be completely consolidated after curing for more than 28 days.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104563097A (en) * | 2014-12-12 | 2015-04-29 | 宁波高新区围海工程技术开发有限公司 | Anti-corrosion concrete pipe core pillar and preparation method thereof |
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- 2014-12-12 CN CN201420784431.7U patent/CN204370410U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563097A (en) * | 2014-12-12 | 2015-04-29 | 宁波高新区围海工程技术开发有限公司 | Anti-corrosion concrete pipe core pillar and preparation method thereof |
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