The occurrence of diseases such as wall cracking, structural tilting and door and window deformation in buildings is often closely related to the problem of foundation settlement. For the repair and reinforcement projects of building foundation settlement, currently, the industry mainly adopts two technical routes: traditional reinforcement techniques and modern trenchless technology.
I. Analysis of Traditional Foundation Reinforcement Techniques
Anchor bolt static pressure pile reinforcement method
Technical principle: Additional bearing capacity is provided through static pressure pile bodies
Project features: The construction noise is significant, affecting the living environment of residents
2. Grouting reinforcement method
Technical principle: Inject slurry to improve soil properties
Engineering limitation: There is a quality risk of uneven slurry penetration
3. Increase the base area method
Technical features: Large-scale excavation construction is required
Engineering issues: Long construction period and prominent safety hazards
Traditional technologies generally have systematic flaws such as large construction disturbances, difficult quality control, and uncontrollable construction periods.
Ii. Innovative Advantages of Trenchless Remediation Technology
The micro-hole injection repair technology (Patent No. : ZL 2022 2 3321394.X) developed by Tongcheng Soft Foundation represents the cutting-edge development direction of the industry:
1. Material technology innovation
Independently develop special composite material systems
It has a wide range of applicable geological conditions (such as silt soil over ten meters deep in the coastal areas of Jiangsu and Zhejiang, collapsible loess in the middle reaches of the Yellow River such as Shaanxi and Gansu, etc.)
The effective reinforcement depth reaches 60 meters. The reinforcement depth needs to be determined by analyzing the bearing stratum in combination with the geological conditions.
2. Technological advancement
1-3cm micro-hole injection process, no need to break the ground
Zero-disturbance construction technology does not affect the normal life of residents
Fenced operation plan, confidential construction
3. Engineering economy
The repair cycle is 7 to 30 days
The comprehensive cost is reduced by 30%
A 20-year warranty commitment
Iii. Professional Technical Service System
1. Pre-service
Free geological exploration
Professional scheme design
National service network
2. Quality Assurance
You can visit our company's ongoing projects nearby
Contractual warranty terms, 20-year warranty service
Industry authority recommendation (Recommended by many well-known domestic developers, survey and design institutes, geotechnical experts, etc., and can organize expert scheme argumentation meetings)
This technology is particularly applicable to:
Construction in sensitive areas (residential areas/commercial areas)
Special geological conditions (high backfill, silty soil, collapsible loess, etc.)
Emergency rescue projects (undisturbed repair of residential buildings, non-stop repair of precision workshops, etc.)
foundation subsidence expert https://en.hengxianghongye.com/Subsidence-Repair.html
