Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underground backfill material suitable for karst regions and preparation method thereof
The invention discloses an underground backfill material suitable for karst regions and a preparation method of the underground backfill material. The underground backfill material comprises the following raw materials in percentage by mass: 80%-90% of a base material, 10%-20% of a water permeable material, 1%-5% of an adhesive and 1%-5% of a retarder, wherein the adhesive is sodium silicate. Thebackfill material mainly solves the problem that underground water is difficult to treat in karst regions, can overcome the problem that a conventional backfill material sinks and can be effectively improved tin heat conduction effect through the water absorption and release effects of external special materials; the selected backfill material in the invention enables shallow low-temperature energy to be effectively utilized and stored; in addition, the backfill material enables an early-stage drilling disposal rate to be greatly reduced, project progress to be accelerated and late-stage maintenance cost to be low, and therefore, the utilization and popularization strength of shallow geothermal energy is improved.
本发明公开了一种适用于岩溶地区的地下回填材料及其制备方法，包括以下质量分数的原料：基料80%‑90%、透水材料10%‑20%、胶黏剂1%‑5%和缓凝剂1%‑5%，胶黏剂为硅酸钠。本发明的回填材料主要解决了岩溶地区遇地下水难以处理的问题，不但可以解决回填材料下陷问题，还能通过外部特殊材料的吸水、释水作用有效提高回填材料的导热效果；本发明选用的回填材料，使得浅层低温能得到有效利用、保存，此外，回填材料使得前期钻孔弃置率大大降低，加快工期进度，后期维护成本低，以提高浅层地温能利用推广力度。
Underground backfill material suitable for karst regions and preparation method thereof
The invention discloses an underground backfill material suitable for karst regions and a preparation method of the underground backfill material. The underground backfill material comprises the following raw materials in percentage by mass: 80%-90% of a base material, 10%-20% of a water permeable material, 1%-5% of an adhesive and 1%-5% of a retarder, wherein the adhesive is sodium silicate. Thebackfill material mainly solves the problem that underground water is difficult to treat in karst regions, can overcome the problem that a conventional backfill material sinks and can be effectively improved tin heat conduction effect through the water absorption and release effects of external special materials; the selected backfill material in the invention enables shallow low-temperature energy to be effectively utilized and stored; in addition, the backfill material enables an early-stage drilling disposal rate to be greatly reduced, project progress to be accelerated and late-stage maintenance cost to be low, and therefore, the utilization and popularization strength of shallow geothermal energy is improved.
本发明公开了一种适用于岩溶地区的地下回填材料及其制备方法，包括以下质量分数的原料：基料80%‑90%、透水材料10%‑20%、胶黏剂1%‑5%和缓凝剂1%‑5%，胶黏剂为硅酸钠。本发明的回填材料主要解决了岩溶地区遇地下水难以处理的问题，不但可以解决回填材料下陷问题，还能通过外部特殊材料的吸水、释水作用有效提高回填材料的导热效果；本发明选用的回填材料，使得浅层低温能得到有效利用、保存，此外，回填材料使得前期钻孔弃置率大大降低，加快工期进度，后期维护成本低，以提高浅层地温能利用推广力度。
Underground backfill material suitable for karst regions and preparation method thereof
一种适用于岩溶地区的地下回填材料及其制备方法
PEI PENG (Autor:in) / LUO TINGTING (Autor:in)
25.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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