Jacking Work Field ｜テクニカ合同株式会社

Jacking Work Field

The term "jacking method" refers to a method in which an underground tunnel-shaped hole is excavated. In this method, a large pit referred to as a shaft is dug, a boring machine that excavates a tunnel-shaped hole is installed inside the pit, a Hume concrete pipe is installed into a semi-shield machine that directly excavates the tunnel, and sewage equipment, optical fibers, and the like, are pushed through the earth by the driving force of a jack.

Technica offers chemical related services for general excavation construction, which are mainly utilized in the three jacking methods of "pressurized slurry jacking method," "pressurized mud jacking method," and "thick slurry jacking method."

In addition to our own original products, our company sells a variety of Hariba Co., Ltd. (main office: Higashi Osaka) products as a general agent and offers technical guidance.

Mud mix

Mud mix plays the role of preventing the collapse of natural ground by enhancing mud film formation in the pressurized slurry jacking method, and is utilized for the purpose of "suppressing the collapse of natural ground" as well as "plastic fluidity," "cut-off performance," and "non-separation (a bridging effect)" in soil excavated inside a chamber in the pressurized mud jacking method and thick slurry jacking method.

Compaction type lubricant

This lubricant is injected into voids (tail voids) that occur between the Hume concrete pipe and natural ground during excavation, with two liquids - agents A and B - introduced prior to injection.

This lubricant is utilized for the purpose of suppressing the collapse of natural ground via an act of compaction while simultaneously decreasing friction.

Lubricant

Lubricant is injected into voids (tail voids) that occur between the Hume concrete pipe and natural ground during excavation, and is utilized for the purpose of lubricating the voids (tail voids) in general and decreasing friction while simultaneously preventing the collapse of natural ground via the fill rate of the lubricant.

Packing material

Packing material is a subsidiary effect material primarily used for "circulation loss prevention," packing the areas between natural ground particles, making it possible to reliably fill the core with mud mix.

Backfilling material

Backfilling material fills the core in void areas (tail voids) that occur between the Hume concrete pipe and natural ground after jacking, and is utilized for the purpose of preventing the loosening and collapse of natural ground.

Clay agent

While it is logically possible to execute excavation by injecting only water (H₂O) in clay-rich ground, clay agent is utilized for the purpose of "suppressing adhesion = sensitivity, etc." and "suppressing the separation of water and mud caused by a high injection rate," based on each clay quality.

Product Comparison Table

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No.	Application	Product	Product Description	Applicable Method			Catalog
No.	Application	Product	Product Description	Slurry	Mud	Foam	Catalog
1	Mud mix	TG Mover α TG Mover L	Agents used in the thick slurry jacking method; for all layers.		○
2	Mud mix	TG Mover β	Agents used in the thick slurry jacking method; for all layers.		○
3	Mud mix	TG HaulingD1	Agents used in the thick slurry jacking method; for all layers.		○
4	Mud mix	TG Slime-Ⅰ (Jacking)	Mud mix for pressurized mud jacking method; for all layers			○
5	Mud mix	TG Slime-Ⅲ	Mud mix for pressurized mud jacking method; for all layers			○
6	Mud mix	TG Mud D	Liquid mud mix for slurry method	○
7	Mud mix	TG Hauling W	Mud mix that can be used for both the slurry method and pressurized mud method	○		○
8	Mud mix	TG Hauling WF	Mud mix for slurry method	○
9	Compaction type lubricant	TG Geru A agent TG Geru B agent	Two-part compaction lubricant (plasticizer) capable of gel time adjustment based on the additive volume and the water temperature of agent A	○	○	○
10	Lubricant	TG Glider Ⅰ	Lubricant for small-diameter jacking work	○	○	○
11	Lubricant	TG Glider Ⅱ	Lubricant for long-distance jacking by special friction reduction (for locations with a great volume of underground water)	○	○	○
12	Lubricant	TG Glider Ⅲ	Lubricant for large- and medium-diameter jacking work	○	○	○
13	Lubricant	TG Glider L	Liquid lubricant	○	○	○
14	Packing material	TG Block	Circulation loss inhibitor for large layers between gravel and boulder layers	○	○
15	Packing material	TG Colloid	Reusable circulation loss inhibitor that can pass through a sieve shaker	○
16	Backfilling material	TG Uragomu Ⅰ	Backfilling material used with cement	○	○	○
17	Backfilling material	TG Uragomu Ⅱ	Integrated backfilling material (for hexavalent chromium)	○	○	○
18	For clay	TG Coat Ⅰ	Adhesion inhibitor for clay-like soil	○	○	○
19	For clay	TG Coat Ⅱ	Adhesion inhibitor for clay-like soil		○	○
20	For clay	TG parikku	Adhesion inhibitor for clay-like soil	○	○	○
21	For clay	TG parikku Ⅱ	Adhesion inhibitor for clay-like soil	○
22	For clay	TG parikku Ⅲ	Adhesion inhibitor for clay-like soil	○
23	For clay	TG Coat-P	Adhesion inhibitor for clay-like soil		○	○
24	For clay	TG Flow	Adhesion inhibitor for clay-like soil	○	○	○
25	CMC	TG-CELL	Thickener (powder)	○	○	○
26	CMC	TG Jeru	Thickener (liquid)	○	○	○
27	Clay	Tochi Clay		○	○	○
28	Clay	Kasaoka Clay		○	○	○
29	Clay	Clay H		○	○	○
30	Bentonite	Various	Bentonite	○	○	○
31	Solidifying material	Various	Polymer, cement, lime

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