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Bridged-cemented flaky soft rock soil material and preparation method thereof
The invention relates to a bridging-cementation flaky soft rock-soil material, cement in bridging and cementation flaky soft rock-soil has a cementation effect, fine clay has a bridging effect, needle-shaped crystal cementation is generated at contact points of flaky soft rock-soil particles, and the fine clay enables the cement to form net cementation in overhead macropores, so that the bonding effect is good, and the bonding effect is good. The combined action of the two reduces the number of overhead macropores of the compacted soil; the bridged and cemented flaky soft rock soil comprises cement, flaky soft rock soil and fine clay. According to the invention, the doped fine clay can play a role in grading and filling flaky soil particles in the initial stage of compaction, and can reduce the porosity in the initial stage of compaction. After the flaky soil is maintained for 28 days, macropores are filled with a certain amount of fine clay, the fine clay plays a bridging role in the macropores, and short needle-shaped cement can be formed in the macropores, so that the connectivity of the macropores is blocked, and the permeability grade of the flaky soil is reduced from low permeability to extremely low permeability.
本申请涉及一种桥接‑胶结的片状软岩土材料,桥接、胶结的片状软岩土中的水泥胶结起胶结作用,细黏土起桥接作用,在片状软岩土颗粒接触点处生成针状晶体胶结,细黏土使水泥可在架空大孔隙中形成网状胶结,两者联合作用降低了压实土架空大孔隙的数量;所述桥接、胶结的片状软岩土包含水泥、片状软岩土、细黏土。本发明中掺入的细黏土,在压实初期,可以在片状土颗粒起级配与充填作用,在压实时即可以降低孔隙率。在养护28天后,在大孔隙中充填一定数量的细黏土,细黏土在大孔隙中起搭桥作用,可以使较短的针状胶结在大孔隙中可以形成,从而阻断大孔隙的连通性,将片状土的渗透等级从低渗透性降低至极低渗透性。
Bridged-cemented flaky soft rock soil material and preparation method thereof
The invention relates to a bridging-cementation flaky soft rock-soil material, cement in bridging and cementation flaky soft rock-soil has a cementation effect, fine clay has a bridging effect, needle-shaped crystal cementation is generated at contact points of flaky soft rock-soil particles, and the fine clay enables the cement to form net cementation in overhead macropores, so that the bonding effect is good, and the bonding effect is good. The combined action of the two reduces the number of overhead macropores of the compacted soil; the bridged and cemented flaky soft rock soil comprises cement, flaky soft rock soil and fine clay. According to the invention, the doped fine clay can play a role in grading and filling flaky soil particles in the initial stage of compaction, and can reduce the porosity in the initial stage of compaction. After the flaky soil is maintained for 28 days, macropores are filled with a certain amount of fine clay, the fine clay plays a bridging role in the macropores, and short needle-shaped cement can be formed in the macropores, so that the connectivity of the macropores is blocked, and the permeability grade of the flaky soil is reduced from low permeability to extremely low permeability.
本申请涉及一种桥接‑胶结的片状软岩土材料,桥接、胶结的片状软岩土中的水泥胶结起胶结作用,细黏土起桥接作用,在片状软岩土颗粒接触点处生成针状晶体胶结,细黏土使水泥可在架空大孔隙中形成网状胶结,两者联合作用降低了压实土架空大孔隙的数量;所述桥接、胶结的片状软岩土包含水泥、片状软岩土、细黏土。本发明中掺入的细黏土,在压实初期,可以在片状土颗粒起级配与充填作用,在压实时即可以降低孔隙率。在养护28天后,在大孔隙中充填一定数量的细黏土,细黏土在大孔隙中起搭桥作用,可以使较短的针状胶结在大孔隙中可以形成,从而阻断大孔隙的连通性,将片状土的渗透等级从低渗透性降低至极低渗透性。
Bridged-cemented flaky soft rock soil material and preparation method thereof
一种桥接-胶结的片状软岩土材料以及制备方法
ZHAO XIUSHAO (Autor:in) / ZHOU ZHIJIE (Autor:in) / HU ZHOU (Autor:in) / MO LINLI (Autor:in) / ZHAO LINHAO (Autor:in) / DENG QI (Autor:in) / LI YUNFAN (Autor:in) / FANG TAO (Autor:in)
30.08.2024
Patent
Elektronische Ressource
Chinesisch
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