Engineering Service
IMS Low-Disturbance Soil Mixing Method
IMS微扰动搅拌工法
IMS is a low-disturbance soil-mixing method for underground-space development and ground improvement in sensitive environments. It is designed to achieve the required treatment quality while reducing the effects of equipment load and construction disturbance on nearby waterways, revetments, and existing structures.
IMS工法是一种面向敏感环境地下空间开发和地基加固的微扰动搅拌技术，通过专用施工方法在保证加固质量的同时降低设备荷载和施工扰动对邻近河道、驳岸及既有结构的影响。
Supplied by Zhejiang Datong Construction Technology Co., Ltd.
Overview
Service overview
IMS is intended for sites where the weight, vibration, or ground disturbance associated with conventional large mixing equipment could adversely affect nearby assets. The construction scheme is adapted to site geometry, adjacent structures, distance to waterways, ground conditions, and movement-control objectives, balancing treatment performance with environmental protection.
The method can be used for excavation support and passive-zone treatment, weak-ground improvement, waterfront works, and construction near existing buildings or structures. Key controls include equipment loading, mixing parameters, continuity of the treated body, and surrounding-ground movement.
IMS微扰动搅拌工法适用于常规大型搅拌设备自重、振动或土体扰动可能对周边环境产生不利影响的场景。施工方案可结合场地空间、邻近结构、河道距离、地层条件和变形控制目标进行调整，以实现地基加固与环境保护的平衡。
该工法可用于基坑围护及被动区加固、软弱地基处理、临河工程和既有建（构）筑物邻近施工。实施过程中重点控制设备荷载、搅拌参数、加固体连续性及周边位移。
Scope
Service scope
Key components that may be provided for relevant engineering scenarios.
- Reduced effects from large-rig weight and soil disturbance on surrounding assets
- Suitability for waterfront sites and construction close to existing structures
- Continuous treated ground while controlling movement and displacement
- Construction parameters adjusted to ground conditions and monitoring results
- Application to local treatment, passive-zone reinforcement, and weak-ground improvement
- Balanced treatment quality, site access, and environmental-protection requirements
- 降低大型搅拌设备自重及施工扰动对周边环境的影响
- 适应临河、邻近既有结构等高敏感性施工条件
- 在控制变形和位移的同时形成连续加固体
- 施工参数可依据地层和环境监测结果进行调整
- 适用于局部加固、被动区加固及软弱地基处理
- 兼顾工程质量、施工可达性和环境保护要求
Scenarios
Applicable project scenarios
Typical project conditions where this offering may be relevant.
- Ground improvement near rivers, revetments, retaining walls, and shoreline facilities
- Sensitive construction adjacent to buildings, underground structures, or utilities
- Sites where conventional three-axis mixing rigs cannot meet load or disturbance limits
- Deep-excavation support, passive-zone treatment, and base improvement
- Constrained urban underground works with strict movement-control requirements
- Low-disturbance improvement of weak ground
- 临近河道、驳岸、挡墙及岸线设施的地基加固
- 既有建筑、地下结构或管线邻近的敏感环境施工
- 常规三轴搅拌设备自重或扰动难以满足控制要求的场地
- 深基坑围护、坑内被动区及坑底加固
- 场地受限、变形控制严格的城市地下空间工程
- 软弱土层中的低扰动地基改良
Offering Details
Technical Details & Applications
Low-Disturbance Treatment in Sensitive Environments
IMS is a low-disturbance soil-mixing method for ground improvement and underground-space works. Its application focuses on achieving the required treatment while limiting disturbance to nearby assets, particularly at waterfront sites and close to existing structures.
The construction scheme considers both the ground-improvement zone and the surrounding environment, including equipment loading and position, the distance to nearby facilities, construction sequence, and movement monitoring.
Taoyuan Project: Working Close to a River
The northeast side of the Taoyuan project was approximately 3 m from a river. The original three-axis soil-mixing operation involved substantial equipment loading and ground disturbance, and a river-revetment failure occurred. The project subsequently adopted IMS to address the sensitive waterfront conditions.
技术说明与应用案例
敏感环境下的微扰动地基加固
IMS 微扰动搅拌工法用于地下空间开发与地基加固，强调在实现加固要求的同时，控制对周边设施的施工扰动，尤其关注临河场地及既有结构邻近施工。
施工方案统筹加固区域与周边环境之间的关系，包括设备荷载和站位、邻近设施距离、施工顺序及变形监测。
桃源项目：邻近河道施工
桃源项目东北侧距河道约 3 m。原三轴搅拌施工的设备荷载和土体扰动较大，曾发生河道驳坎坍塌。项目随后采用 IMS 工法，针对临河敏感条件组织加固施工。
Taoyuan project layout showing the relationship between the treatment area and the adjacent river. Dimensions and annotations relate to the source project drawing.
桃源项目平面工况，展示地基处理区域与河道的相互位置。图中尺寸和标注对应本项目原图。
- After IMS was adopted, deformation and displacement of the river revetment remained limited. The case illustrates the importance of considering equipment and ground interaction alongside the required soil treatment where construction takes place close to a riverbank.
- 采用 IMS 工法后，河道驳坎变形和位移保持较小。该案例说明，在临近河岸开展地基加固时，需要将设备与地层相互作用、邻近结构保护和加固要求一并考虑。
IMS construction at the Taoyuan project; the source photo identifies the adjacent revetment area.
桃源项目 IMS 施工现场，原图标示了邻近河道驳坎区域。
Site Planning and Construction Control
Control priorities for this type of work include:
- Riverbank and revetment condition in relation to the working area.
- Equipment position, working platform, and loading conditions.
- Treatment boundaries and construction sequence.
- Soil-mixing and grout-delivery parameters.
- Treatment continuity and monitoring of surrounding movement.
The treatment arrangement and construction sequence are coordinated with the required ground improvement and adjacent-asset protection measures. Monitoring of surrounding movement supports review of the construction response throughout the works.
场地布置与施工控制
此类工程的施工控制重点包括：
- 作业区与河岸、驳坎的相互位置及其现状。
- 设备站位、作业平台与荷载条件。
- 加固边界及施工顺序。
- 搅拌与供浆参数。
- 加固体连续性及周边变形监测。
结合工程加固目标与邻近设施保护要求，协调加固布置、施工顺序和环境保护措施，并通过周边变形监测跟踪施工响应。
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