Static drilled rooted pile construction
Engineering Service
Static Drilling Rooted Precast Pile Construction
静钻根植桩施工
A low-disturbance pre-bored precast pile method combining soil-cement stabilization, an enlarged pile base and controlled pile insertion for high-capacity foundations in urban and sensitive environments.
将预钻成孔、土体固化、桩端扩底和预制桩植入相结合，为城市及敏感环境提供低扰动、高承载的静钻根植桩施工服务。
Supplied by Wenzhou Kingjiu Foundation Engineering Co., Ltd.
Overview
Service overview
The method combines a multipurpose drilling rig, single-axis rotary head, drill rods, a hydraulic underreaming tool and slurry or grout preparation systems.
The bore is drilled and treated with cementitious material, the pile base is enlarged where required, and a precast pile is inserted to the designed elevation before the root and surrounding stabilized material develop strength.
It integrates the dimensional quality of factory-made precast piles with project-specific ground improvement and base enlargement. The method is intended to reduce vibration, noise, soil displacement and slurry discharge while providing controlled pile-head elevation and foundation performance.
该工法由多功能钻机、单轴动力头、钻杆、液压扩底钻头及制浆或注浆系统组成。
施工中先完成预钻成孔和固化材料拌合，并按设计进行桩端扩底，再将预制桩植入至设计标高，使桩端根部及桩周固化体逐步形成强度。
该工法将工厂预制桩的尺寸与质量优势，同项目化土体固化和桩端扩底相结合，旨在减少振动、噪声、挤土和泥浆排放，同时提高桩顶标高及成桩质量的可控性。
Scope
Service scope
Key components that may be provided for relevant engineering scenarios.
- Low vibration, low noise and low soil displacement compared with impact-driven piling
- Reduced slurry discharge and improved suitability for environmentally sensitive sites
- Factory-produced precast pile elements provide consistent dimensional quality
- Soil-cement stabilization and enlarged-base treatment can be adapted to design requirements
- Pile-head elevation and insertion process can be controlled during construction
- Supports vertical compression, uplift and horizontal-load design objectives when properly engineered
- 相较锤击沉桩，具有低振动、低噪声和低挤土特点
- 泥浆排放较少，更适合环境敏感场地
- 工厂化预制桩构件尺寸及质量稳定
- 土体固化和桩端扩底可根据设计要求进行适配
- 施工过程中可控制植桩及桩顶标高
- 经合理设计后可满足竖向抗压、抗拔和水平承载要求
Scenarios
Applicable project scenarios
Typical project conditions where this offering may be relevant.
- Urban sites near existing buildings, schools, hospitals or operating facilities
- Projects with strict limits on vibration, noise, ground heave or lateral soil displacement
- Variable strata containing fill, soft soil, gravel, weathered rock or local hard inclusions
- Industrial plants, public buildings and education facilities
- Urban redevelopment and environmentally sensitive projects
- Foundations requiring controlled pile-head elevation, uplift resistance or high vertical capacity
- 邻近既有建筑、学校、医院或运营设施的城市项目
- 对振动、噪声、地面隆起或侧向挤土控制要求严格的工程
- 含填土、软土、砾石、风化岩或局部硬夹层的变化地层
- 工业厂房、公共建筑及教育设施
- 城市更新及环境敏感项目
- 对桩顶标高、抗拔能力或竖向承载力有较高要求的基础工程
Offering Details
Technical Details & Applications
Construction Control
- Verify the geological profile, pile type, bearing stratum, required capacity, adjacent structures and environmental limits.
- Determine bore diameter, depth, enlarged-base geometry, mixing or grouting material and target stabilized-body properties.
- Control drilling verticality, slurry or grout preparation, mixing uniformity and underreaming sequence.
- Coordinate precast pile delivery, jointing, insertion timing, alignment and final elevation.
- Protect the stabilized root and pile position during the initial curing period.
- Confirm acceptance through construction records, integrity testing, load testing and other design-specified verification.
Representative Projects
- Wenzhou Medical University International Student Teaching and Living Building
Kingjiu participated in the project’s pile foundation construction. The site contained thick gravel interlayers that were difficult to penetrate using conventional piling methods, while the campus environment also required careful control of vibration, noise and construction disturbance.
Static drilling rooted precast piles were adopted, combining pre-boring, ground stabilization, pile-base treatment and controlled precast pile insertion. The method addressed the difficult gravel interlayers while providing low-vibration, low-noise and low-displacement construction with reduced slurry discharge.
- Ruian Factory Project of Wenzhou Heyang Intelligent Elevator Components Co., Ltd.
Kingjiu participated in the project’s pile foundation works. The site is located close to a hillside and contains highly variable strata, including changing bearing-stratum depths, interlayers, rounded gravel, completely weathered material and local gravel and boulders, creating bore-stability challenges.
Static drilling rooted precast piles were adopted to manage the variable ground through pre-boring, ground stabilization and controlled pile insertion while reducing vibration, noise and soil displacement compared with conventional driven piling.
- Ruian Dongxin Technology Business Incubator Project
Kingjiu participated in the project’s pile foundation construction. The site contains unevenly distributed soils and rapidly changing geological conditions, requiring controlled pile installation and consistent construction quality.
Static drilling rooted precast piles were adopted, combining pre-boring, soil stabilization and precast pile insertion to provide a low-disturbance foundation solution suited to the site conditions.
技术说明与应用案例
施工控制要点
- 施工前应核实地层剖面、桩型、持力层、承载要求、邻近结构及环境限制。
- 确定成孔直径和深度、扩底几何尺寸、搅拌或注浆材料及固化体目标性能。
- 控制钻进垂直度、浆液制备、搅拌均匀性及扩底顺序。
- 协调预制桩运输、接桩、植入时机、垂直度及最终标高。
- 初期养护阶段应保护根部固化体和桩位稳定。
- 通过施工记录、完整性检测、载荷试验及设计要求的其他方法进行验收。
代表性工程应用
- 温州医科大学留学生教学生活楼
京久基础参与该项目桩基础施工。场地存在较厚碎石夹层，传统桩基施工工艺穿透存在困难，同时校园建筑项目对施工振动、噪声及环境影响控制具有较高要求。
项目采用静钻根植桩工法，通过预钻成孔、土体固化、桩端处理和预制桩植入完成桩基施工，在解决碎石夹层施工问题的同时，发挥低振动、低噪声、低挤土及泥浆排放较少等特点。
- 温州市和阳智能电梯部件有限公司瑞安厂房项目
京久基础参与该项目桩基础施工。项目场地靠近山体，土层分布不均，持力层埋深变化较大，并存在夹层、圆砾层、全风化层以及局部碎石和块石，具有一定塌孔风险。
针对上述地质条件，项目采用静钻根植桩工法，通过预钻成孔、固化处理及预制桩植入适应变化地层，并降低传统沉桩施工产生的振动、噪声和挤土影响。
- 瑞安市东新科技企业孵化器建设项目
京久基础参与该项目桩基础施工。项目场地土层分布不均、地质结构变化较大，对成桩质量及施工环境控制提出较高要求。
项目采用静钻根植桩工法，通过预钻、土体固化和预制桩植入的组合施工方式，在控制施工扰动的同时满足项目桩基础施工要求。
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