{"id":51182,"date":"2024-04-18T08:00:08","date_gmt":"2024-04-17T23:00:08","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=51182"},"modified":"2026-05-16T14:45:39","modified_gmt":"2026-05-16T05:45:39","slug":"horizontal-boring-spacing-document","status":"publish","type":"post","link":"https:\/\/norimen.net\/en\/horizontal-boring-spacing-doc\/","title":{"rendered":"Is there any literature that provides a basis for determining horizontal placement intervals in horizontal directional drilling?"},"content":{"rendered":"

Hello, everyone.<\/p>\n

This is Enta.<\/p>\n

\"Collecting<\/p>\n

When you're in the design phase, how do you determine things like the horizontal spacing for horizontal boreholes?<\/p>\n

This refers to the spacing when pouring concrete within the boundaries of a formwork frame or similar structure.<\/p>\n

There isn't anything about that in the literature, is there?<\/p>\n

 <\/p>\n

In the case of catch basins, the documentation on landslides states that the leading edge is approximately 5 to 10 meters.<\/p>\n

\"Horizontal<\/p>\n

\"Horizontal<\/p>\n

It doesn't actually say, \"This is what it looks like when it's on the ground!\"<\/p>\n

 <\/p>\n

Guidelines for Landslide Prevention Technology and Explanatory Notes Thereon<\/span><\/strong><\/span><\/p>\n

\"Horizontal Boring Method: The horizontal boring method is used to drain groundwater in shallow strata that cannot be drained by open or covered channel construction, and is planned when topographical conditions permit construction. While it is desirable to plan the diameter, length, and angle of the horizontal boreholes based on groundwater analysis results, the spacing between the tips of the boreholes is generally set at 5 to 10 meters, and they are typically concentrated in areas with abundant groundwater.\"<\/span><\/strong><\/span><\/p>\n

Guidelines for Landslide Prevention Technology and Explanatory Notes Thereon<\/a><\/p>\n

 <\/p>\n

Even if you look at this, the minimum spacing between tips is 5 meters.<\/p>\n

But in reality, they\u2019re sometimes designed to be 2.0 m or 3.0 m\u2014what\u2019s the basis for that?<\/p>\n

How do you respond when someone asks you that?<\/p>\n

\"Horizontal<\/p>\n

If there's any basis for that, I'd like to know.<\/p>\n

 <\/p>\n

Personally, I believe that in the shallow section of a slope, a single drainage point\u2014about 3.0 meters deep\u2014should be installed to quickly drain infiltrating water from rainfall and other sources.<\/p>\n

We try to pour the concrete at intervals of approximately 2.0 m to 5.0 m.<\/p>\n

We also believe that using the same spacing as for the rebar insertion work will result in better balance.<\/p>\n

But since there\u2019s no reference material, this is just my personal opinion as a contractor\u2014lol.<\/p>\n

Well, I suppose you could say it\u2019s based on experience.<\/p>\n

Since money is involved, government agencies can't just do whatever they want, can they?<\/p>\n

 <\/p>\n

If you have any such literature or have any thoughts on this, please let me know.<\/p>\n

Thank you in advance.<\/p>\n

 <\/p>\n

See you later.<\/p>","protected":false},"excerpt":{"rendered":"

Hello, everyone. This is Enta. How do you determine the horizontal spacing for horizontal boreholes during the design phase? I\u2019m referring to the spacing when drilling within the boundaries of a retaining wall or similar structure. I don\u2019t think there\u2019s anything about this in the literature, is there? In the case of catch basins, it\u2019s related to landslides\u2026<\/p>","protected":false},"author":2,"featured_media":6298,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[90],"tags":[61,116,813,6180,6181,6182],"class_list":["post-51182","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drain-boring","tag-61","tag-116","tag-813","tag-6180","tag-6181","tag-6182"],"acf":[],"yoast_head":"\n\u6a2a\u30dc\u30fc\u30ea\u30f3\u30b0\u5de5\u306b\u304a\u3051\u308b\u6c34\u5e73\u6253\u8a2d\u9593\u9694\u306e\u6839\u62e0\u7684\u6587\u732e\u306f\u3042\u308a\u307e\u3059\u304b\uff1f - 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