护坡桩在工程中的应用_常见问题_新闻资讯-济南鑫路通新型建材有限公司

项目分类Project classification

资讯Information

联系我们Information

济南鑫路通新型建材有限公司
地址：济南市章丘区枣园街道办事处吉祥工业园

护坡桩在工程中的应用

来源：http://www.jnxltjc.com/ 日期：2023-04-04 发布人：admin

护坡桩在工程中的应用是怎样的呢？实际上山东护坡桩在进行时，放线用测量仪器准确定轴线和桩位位置，护坡桩施工过程中，确定桩底、桩顶标高，施工时比桩顶高30～50cm。采用深层护坡桩层护坡桩机三次下沉切土，二次提升搅拌喷浆成桩的施工工艺方法。施工技术要求：

What is the application of slope protection piles in engineering? In fact, during the construction of Shandong slope protection piles, measuring instruments are used to accurately determine the axis and pile position. During the construction of slope protection piles, the elevation of the pile bottom and pile top is determined, which is 30-50cm higher than the pile top during construction. The construction process method of using a deep slope protection pile layer slope protection pile machine to sink and cut soil three times, and to lift, mix, and spray grout twice to form a pile. Construction technical requirements:

1.水泥土护坡桩：钻孔直径700mm，孔中心距为500mm，桩身采用PO42.5普通硅酸盐水泥，水泥掺量为16%，水灰比采用0.5～0.55。水泥土护坡桩养护期不得少于28天，无侧限抗压强度qu>0.8Mpa时方可开挖基坑。具体施工要求按施工图纸进行。

1. Cement soil slope protection pile: The drilling diameter is 700mm, and the center distance between the holes is 500mm. The pile body is made of PO42.5 ordinary Portland cement, with a cement content of 16% and a water cement ratio of 0.5-0.55. The curing period of cement soil slope protection piles shall not be less than 28 days, and excavation of foundation pits can only be carried out when the unconfined compressive strength qu>0.8Mpa. The specific construction requirements shall be carried out according to the construction drawings.

2.桩体垂直度偏差不得大于0.5%L，桩位偏差不得大于50mm。

2. The verticality deviation of the pile body shall not exceed 0.5% L, and the pile position deviation shall not exceed 50mm.

3.双轴护坡桩为坑内土体加固，一幅桩的搭接为20cm。

3. The biaxial slope protection pile is used to reinforce the soil in the pit, and the overlap of one pile is 20cm.
山东护坡桩

4.采用两次注浆三次搅拌工艺：搅拌头下沉搅拌设计深度，然后提喷浆升设计标高，重复以上工序。搅拌头平均下沉及提升速度不得大于0.5m/min，速度必须均匀，每根桩的注浆量必须足够。

4. Adopt two rounds of grouting and three rounds of mixing process: first, the mixing head sinks and mixes to the design depth, then lift the spray to the design elevation, and repeat the above process. The average sinking and lifting speed of the mixing head must not exceed 0.5m/min, and the speed must be uniform. The grouting amount for each pile must be sufficient.

5.水泥土护坡桩应连续施工，不可长时间中断，桩组之间搭接时间不得大于24小时，如超过24小时，须采取措施对其施工冷缝进行处理（增加一根桩），搭接桩水泥的掺量为18%，在接逢外补桩及作出明显标记。

5. Cement soil slope protection piles should be constructed continuously and should not be interrupted for a long time. The overlap time between pile groups should not exceed 24 hours. If it exceeds 24 hours, measures must be taken to treat the construction cold joint (adding one pile). The cement content of the overlap pile is 18%, and piles should be added and clearly marked outside the joint.

6.水泥浆制备后应在2小时内用完，并防止水泥浆发生离析，拌浆桶和拌浆池内均设置搅拌装置。水泥要有质量保证单，并应取样复试合格后方可使用，不同品种、标号、生产厂家的水泥不能混用于同一根桩内。

6. After the preparation of cement slurry, it should be used up within 2 hours to prevent segregation of the cement slurry. Mixing devices should be installed in the mixing bucket and mixing tank. Cement must have a quality assurance certificate and must be sampled and retested before use. Cement of different varieties, grades, and manufacturers cannot be mixed in the same pile.

7.应设专人对每根桩的水泥掺量、搅拌情况和施工情况做详细的记录。

7. A dedicated person should be assigned to keep detailed records of the cement content, mixing situation, and construction situation of each pile.

护坡桩在工程中的应用相关内容就到这里了，您对此有怎样的疑惑或者需求，就来我们网站http://www.jnxltjc.com咨询！

That's all for the application of slope protection piles in engineering. If you have any doubts or needs about this, please come to our website http://www.jnxltjc.com consulting service

Related products相关新闻